Updated on 2024/11/18

Information

 

写真a

 
OKAYASU TAKASHI
 
Organization
Faculty of Agriculture Department of Agro-environmental Sciences Professor
Plant Frontier Research Center (Concurrent)
System LSI Research Center (Concurrent)
Joint Graduate School of Mathematics for Innovation (Concurrent)
School of Agriculture Department of Bioresource and Bioenvironment(Concurrent)
Graduate School of Bioresource and Bioenvironmental Sciences Department of Agro-environmental Sciences(Concurrent)
Title
Professor
Contact information
メールアドレス
Profile
1. DEVELOPMENT OF SOIL TILLAGE SIMULATOR USING FEM-DEM QUASI-COUPLING METHOD Soil tillage simulator was developed by the FEM (Finite Element Method) - DEM (Discrete Element Method) quasi-coupling method. By using this simulator, not only the prediction of the soil dynamics such as soil cutting, crushing, reversing, and throwing and the soil reaction forces acting on the tillage tool but also the evaluation of stress and strain distribution in the tillage tool during the soil tillage operation are carried out. We are also trying to improve the accuracy in the development of proper constitutive models for describing the mechanical behavior of soils and metals, and the accurate modeling of tillage tools using 3D scanner and CAD. 2. DEVELOPMENT OF INFORMATIZATION AGRICULTURAL SUPPORTING SYSTEM AND EVALUATION OF ITS VALIDITY The informatization agricultural supporting system called the “Agri-eye” is developed to optimize the agricultural production system. This system is composed of the field environmental monitoring and acquisition, the crop growth diagnosis and quality evaluation, the work history recording, the data analysis and visualization, the communication tools, and so on. Currently more than 50 devices have been already installed into more than 10 real fields mainly distributed in Fukuoka and Oita prefectures. The validity of the systems has been verified by the feasibility studies up to present. 3. UTILIZATION OF ICT IN TROPICAL AGRICULTURE Environmental information is important factor affecting the agricultural production system. In four season countries including Japan, a weather condition during cultivations will be controlled by using a greenhouse and environmental control facilities. However, in tropical countries like Indonesia and Bangladesh, a utilization of the automatic environmental control system is still rare because of the operational costs and the economic reasons. Thus, we try to utilize the Information and Communication Technology (ICT) in order to improve the agricultural production system in the tropical agriculture. In this study, the simple field monitoring systems have been developed and installed into the real tropical fields in Indonesia and Bangladesh. These information measured are utilized to establish the real-time environmental evaluation and the decision support on the farm operations.
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Research Areas

  • Environmental Science/Agriculture Science / Agricultural environmental engineering and agricultural information engineering

  • Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Geotechnical engineering

  • Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Civil engineering material, execution and construction management

Degree

  • Ph.D.

Education

  • Kyushu University

    - 1999

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    Country: Japan

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  • Kyushu University   Graduate School, Division of Agriculture

    - 1999

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Research Interests・Research Keywords

  • Research theme:農業機械

    Keyword:農業機械

    Research period: 2024

  • Research theme:Agroinformatics

    Keyword:Agroinformatics

    Research period: 2024

  • Research theme:Computational Mechanics

    Keyword:Computational Mechanics

    Research period: 2024

  • Research theme:地盤工学

    Keyword:地盤工学

    Research period: 2024

  • Research theme:geotechnical engineering

    Keyword:geotechnical engineering

    Research period: 2024

  • Research theme:Agricultural machinery

    Keyword:Agricultural machinery

    Research period: 2024

  • Research theme:Development of Low Cost Farming Support Robot and Verification of Its Validity

    Keyword:small and low-cost robots

    Research period: 2019.4

  • Research theme:Study on Measurement, Extraction, and Visualization of Plant Phenotype Using Computer Vision

    Keyword:Measurement, Extraction, and Visualization of Plant Phenotype, Computer Vision

    Research period: 2018.4

  • Research theme:Development of High-throughput Plant Phenotyping System

    Keyword:Plant Phenotyping, Plant Body Sensing, High Throughput Processing, Image Processing and Analysis, IoT

    Research period: 2014.4

  • Research theme:Study on numerical analyses of mechanical behavior in soils-machine system

    Keyword:Soils, Inelastic behavior, Discrete Element Method (DEM), Finite Element Analysis (FEM)

    Research period: 2008.6

  • Research theme:Study on Smart Agriculture

    Keyword:Smart Agricultre, Precision Agriculture, ICT, IoT, Field Monitoring System, GIS, Hyperspectral Imaging, Open software, Virtual and Augmented Reality

    Research period: 2005.6

  • Research theme:Study on numerical analyses of mechanical behavior in crop-machine system

    Keyword:Crop, Biomechanics, Inelastic behavior, Discrete Element Method (DEM), Finite Element Analysis (FEM)

    Research period: 2005.6

  • Research theme:Study on analysis of soil defomation behavior by elastoplastic FEM

    Keyword:Subloading surface model, Elastoplastic finite element method, Cyclic loading, Soil compaction, Optimal design

    Research period: 2002.9

  • Research theme:Study on experimental and theoretical analyses for frictional phenomena between structures

    Keyword:Frictional phenomenon, Subloading surface concept, Sliding, Cyclic friction

    Research period: 2002.4 - 2008.3

  • Research theme:Study on elastoplastic constitutive equation of materials

    Keyword:Elastoplastic, Rate (time)-dependency, Creep, Stress relaxation, Subloading surface model, Structure

    Research period: 2002.1

  • Research theme:Development of soil displacement measurement system based on PIV

    Keyword:PIV (Particle Image Velocimetry), Soil deformation, Soil compaction, Wheel, Online measurement system

    Research period: 2002.1

  • Research theme:Study on traveling performance of off-road vehicle and soil deformation

    Keyword:Drawbar pull, Traveling resistance, Trafficability, Tractive performance

    Research period: 1996.4

Awards

  • 2022年度農業情報学会フェロー

    2022.5   農業情報学会   農業・農村の情報化に関する永年の貢献

  • 2021年度農業情報学会功績賞

    2021.5   農業情報学会   圃場環境・植物生育情報計測技術の開発普及および学会運営への功績

  • 2019年度農業情報学会学術普及賞

    2019.5   農業情報学会   圃場環境計測・制御IoTシステムの研究開発および実用化

  • 2019年度農業情報学会特別貢献賞

    2019.5   農業情報学会   30周年記念事業(出版)に関する特別な貢献

  • ベストポスター賞

    2017.11  

  • 農業情報学会学術奨励賞

    2014.5   農業情報学会   圃場環境情報の連続計測と収集した情報の特徴量抽出に関する研究

  • ベストポスター賞

    2007.9   農業環境工学関連学会合同大会  

  • 農業機械学会研究奨励賞

    2004.9   農業機械学会   「圃場機械走行による地盤変形・転圧現象の高精度予測に関する基礎研究」 圃場機械の乗用・大型化,持続型農業や精密農業の推進により,機械作業に伴う土壌転圧問題が深刻化し,現下,その具体的解決へ向けた研究が国内外で盛んに行われている.このような情勢の中,圃場機械には,優れた走行性能に加えて転圧を軽減し得る新たな走行部の設計・開発が求められている.その実現には,圃場機械走行部と土壌との力学的相互作用を詳細に把握する必要があるが,既往の研究は,経験的手法が主流で,圃場走行・転圧現象を合理的に予測し得るには至っていない.斯様な状況の下,本研究は近年発展の著しいコンピュータ技術,画像処理技術,数値解析技術を活用して,車輪走行に伴う地盤の変形・転圧現象の高精度オンライン計測システム,さらには弾塑性有限要素解析プログラムを開発し,実験・理論両面から本問題解明に取り組んだものである.

  • The International Society for Terrain-Vehicle Systems 7th Asia-Pacific Conference・Best Session Paper Award

    2004.1  

  • 農業機械学会九州支部例会・ポスター賞受賞

    2000.9   農業機械学会九州支部  

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Papers

  • Enhancing Image Quality Assessment for Plant Phenotyping Robots Reviewed

    Pham D.T., Okayasu, T., Yasutake, D., Hirai, Y., Ozaki, T., Koga, M., Hidaka, K., Nomura, K., Vo, H.B.

    33 ( 2 )   2024.7

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  • 小型UAVのための画像情報に基づく自己位置推定と3次元点群地図作成技術の精度評価 Reviewed

    田中 颯,岡安崇史*,Awal, S. M. S.,伊藤次郎,井上英二,平井康丸,光岡宗司

    九州農業食糧工学会誌   71   2021.12

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • フォトグラメトリー法に基づく植物3次元形状の計測とその精度評価 Reviewed

    兒玉拓也,岡安崇史*,井上英二,平井康丸,光岡宗司

    九州農業食糧工学会誌   71   2021.12

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  • Accuracy evaluation of mapping and self-localization for small robot navigation using ROS Reviewed

    Awal, S. M. S., Okayasu, T.*, Inoue, E., Hirai, Y.

    71   2021.12

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  • Development of a plant phenotyping platform using low-cost IoT devices and its performance evaluation Reviewed International journal

    Ito, J., Okayasu, T., Nomura, K., Yasutake, D., Iwao, T., Ozaki, Y., Inoue, E., Hirai, Y., Mitsuoka, M.

    Proceedings of the Forum "Math-for-Industry" 2019   2021.9

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  • Water usage monitoring system for plants based on a weight sensor and imagery motion analysis Reviewed International journal

    Hamidah, A., Okayasu, T., Hoshino, Y., Inoue, E., Hirai, Y., Mitsuoka, M., Nugroho, A/P., Sutiarso, L.

    Proceedings of the Forum "Math-for-Industry" 2019   2021.9

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  • 低コストIoTデバイスを用いた植物フェノタイピングロボットの開発とその性能評価 Reviewed

    伊藤次郎,岡安崇史,野村浩一,安武大輔,岩尾忠重,尾崎行生,井上英二,平井康丸,光岡宗司

    農業情報研究   2021.7

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  • Development of plant phenotyping platform using affordable devices and sensors Reviewed International journal

    T. Okayasu, D. Arita, T. Yoshinaga, A. Shimada, R. Taniguchi, E. Inoue, Y. Hirai, and M. Mitsuoka

    Proc. AFITA/WCCA2018   2018.10

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  • Development of Plant Motion Monitoring System to Study The Circadian Rhythms Based on Leaf Motion Implementing the Optical Flow Method Reviewed International journal

    Nugroho A.P., Sutiarso, L., Masithoh, R.E., Okayasu, T.

    Proceedings of the 9th International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB)   2018.5

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  • Early Disease Detection of Bacterial Leaf Blight on Rice Plant by using Hyperspectral Imaging Reviewed International journal

    Ibrahim, M.N.R., Okayasu, T., Yoshimura, A., Yamagata, Y., Furuya, N, Inoue, E., Hirai, Y., Mitsuoka, M.

    Proceedings of the 9th International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB)   2018.5

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  • Development of Monorail-type Mobile Robot for Field Environment and Plant Status Monitoring Reviewed International journal

    Okayasu, T., Arita, D., Yoshinaga, T., Taniguchi, R., Inoue, E., Hirai, Y., Mitsuoka, M.

    Proceedings of the 9th International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB)   2018.5

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  • Affordable Field Environmental Monitoring and Plant Growth Measurement System for Smart Agriculture Reviewed International journal

    Okayasu, T., Nugroho, A.P., Sakai, A., Arita, D., Yoshinaga, T., Taniguchi, R., Horimoto, M., Inoue, E., Hirai, Y., Mitsuoka, M.

    11th International Conference on Sensing Technology (ICST)   2017.12

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    DOI: 10.1109/ICSensT.2017.8304486

  • 温室環境計測機器のための低コスト相対湿度センサの耐候性評価

    星 岳彦,越智眞之助,松山智紀,安場健一郎,黒崎秀仁,岡安崇史

    農業情報研究   2016.10

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  • Development of a field environmental monitoring node with over the air update function

    Andri Prima Nugroho, Takashi Okayasu, Masafumi Horimoto, Daisaku Arita, Takehiko Hoshi, Hidehito Kurosaki, Ken-ichiro Yasuba, Eiji Inoue, Yasumaru Hirai, Muneshi Mitsuoka and Lilik Sutiarso

    2016.10

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  • Water leakage control by using vibratory roller on a dry-seeded rice field in southwestern Japan International journal

    Koichiro Fukami, Toshifumi Mukunoki, Keiko Nakano, Naoki Matsuo, Takashi Okayasu

    Soil and Tillage Research   2016.9

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  • Quantification of 2D Lateral Leaf Motion on Mature Plants Foliage using Optical Flow to Study the Circadian Rhythms International journal

    Andri Prima Nugroho, Takashi Okayasu, Rin-ichiro Taniguchi, Eiji Inoue, Yasumaru Hirai, Muneshi Mitsuoka and Lilik Sutiarso

    Proceesings of the 2nd International Symposium on Agricultural and Biosystem Engineering   2016.8

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  • Development of a remote environmental monitoring and control framework for tropical horticulture and verification of its validity under unstable network connection in rural area Reviewed International journal

    Andri, P. N., Okayasu, T., Hoshi, T., Inoue, E., Hirai, Y., Mitsuoka, aM., Lilik, S.

    Computers and Electronics in Agriculture   2016.6

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    DOI: 10.1016/j.compag.2016.04.025

  • Measurement and Visualization of Farm Work Information International journal

    Hashimoto, Y., Arita, D., Shimada, A., Yoshinaga, T., Okayasu, T., Uchiyama, H., Taniguchi, R.

    Proc. CIGR-AgEng conference 2016   2016.6

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  • Sutiarso:Development of a remote environmental monitoring and control framework for tropical horticulture and verification of its validity under unstable network connection in rural area International journal

    Andri Prima Nugroho, Takashi Okayasu, Takehiko Hoshi, Eiji Inoue, Yasumaru Hirai, Muneshi Mitsuoka, and Lilik

    Computers and Electronics in Agriculture   2016.6

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  • Plant growth evaluation for leaf vegetables using simple field monitoring system International journal

    Okayasu, T., Tanaka, D., Sakai, A., Sakai, Y., Shimada, K., Awai, K., Inoue, E., Hirai, Y., Mitsuoka, M.

    Proceedings of International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB) 2016   2016.5

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  • Farmer position estimation in a tomato plant green house with smart devices International journal

    Hashimoto, Y., Arita, D., Shimda, A., Okayasu, T., Uchiyama, H., Taniguchi, R.

    Proceedings of International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB) 2016   2016.5

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  • Effective investigation of 3D feature value extraction for plant body surface using rgb-d sensor International journal

    Sakai, A., Okayasu, T., Yoshinaga, T., Nugroho, A. P., Arita, D., Inoue, E., Hirai, Y., Mitsuoka, M.

    Proceedings of International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB) 2016   2016.5

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  • Automatic leaf motion analysis using optical flow to diagnose plant behavior in response to environmental changes International journal

    Nugroho, A. P., Okayasu, T., Sakai, A., Inoue, E., Hirai, Y., Mitsuoka, M., Sutiarso, L.

    roceedings of International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB) 2016   2016.5

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  • 低コスト環境制御システム構築のためのプログラムライブラリの開発

    安場 健一郎, 多根 知周, 田中 義行, 後藤 丹十郎, 吉田 裕一, 黒崎 秀仁, 岡安 崇史, 星 岳彦

    農業情報研究   2016.4

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  • Arduinoで構成したユビキタス環境制御システム対応ノードのパケット処理能力

    黒崎 秀仁, 安場 健一郎, 岡安 崇史, 星 岳彦

    農業情報研究   2016.4

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  • RGB-Dセンサを用いた植物体情報の計測とその精度評価 Reviewed

    境 淳成,岡安崇史,吉永 崇,有田大作,三好悠太,北野雅治, 井上英二,平井康丸,光岡宗司

    農業食料工学会九州支部誌   2015.8

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  • 農作業履歴収集の電子化とその利活用技術の開発

    田中大介,岡安崇史,永尾宏臣,坂井佑輔,粟井一勝,井上英二,平井康丸,光岡宗司

    九州大学大学院農学研究院学芸雑誌   2015.2

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  • Elastoplastic deformation behavior for ballast under monotonic and cyclic loading conditions International journal

    Takashi Okayasu, Takahisa Nakamura, Katsumi Muramoto, Yoshitsugu Momoya

    Proceedings of International Conference on International Society for Terrain-Vehicle Systems   2014.9

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  • Deployment of agricultural information system – installation and utilization of field monitoring system on agricultural production in Yogyakarta, Indonesia International journal

    2014.6

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    DOI: 10.13140/2.1.1643.8401

  • Development of soil tillage simulator using fem-dem quasi-coupling method International journal

    Takashi Okayasu, Toshihisa Fukuda, Keita Tsuchiya, Koichiro Fukami, Eiji Inoue, Yasumaru Hirai, Muneshi Mitsuoka

    Proceedings of International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB) 2014   2014.5

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  • Effectiveness evaluation on utilization of two snss in japan agriculture International journal

    Takashi Okayasu, Daisaku Arita, Andri Prima Nugroho, Takehiko Hoshi, Takashi Yoshinaga, Eiji Inoue, Yasumaru Hirai, Muneshi Mitsuoka

    Proceedings of International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB) 2014   2014.5

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  • バングラデシュにおけるICTを用いた農業情報支援による貧困層農家の所得向上 Reviewed

    尾﨑彰則・緒方一夫・アシル アハメッド・宮島郁夫・岡安崇史・大杉卓三・田中祥子

    農学国際協力   2014.4

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  • 放牧による耕作放棄地解消がイノシシの行動に及ぼす影響 Reviewed

    丸居篤・藤堂乃夫宏・岡安崇史・後藤貴文・衛藤哲次・塩塚雄二・高橋秀之

    日本暖地畜産学会報   2014.4

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  • 変化点分析法を用いた圃場環境情報の特徴量抽出とその妥当性の検証 Reviewed

    岡安 崇史, Andri Prima Nugroho, 尾﨑 彰則, 光岡 宗司, 南石 晃明, 井上 英二, 平井 康丸

    農業情報研究   2013.10

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    圃場に設置された簡易モニタリング装置を用いて計測・収集される環境データは,作物の生育状況,病害虫の発生等の把握・予測のみならず,播種・移植,潅水,施肥,防除,収穫等の種々の農作業の最適化のための重要な情報となる.しかしながら,モニタリング装置の設置台数,さらには各装置に接続されたセンサー数の増加に伴い,データベースに保管されるた計測データは急速に増大していくすることが予想される.このため,これら膨大なデータの中から農業生産に必要なデータを効率的かつ迅速に抽出するための技術の開発が求められるている.本稿では,まず,圃場環境の常時監視,農業生産工程の最適化,農家間での生産情報の共有等を目的に著者らが開発を行ったハウス内環境の簡易モニタリングシステムについて概説する.次に,特異スペクトル変換と称される時系列データ解析手法に基づく特徴量抽出プログラムを開発し,同モニタリングシステムで計測されたハウス内環境情報の変化点の抽出,さらには,抽出した変化点情報と農作業履歴データとの比較・照査を行い,本解析手法ならびに自動検出された変化点情報の妥当性について検討を行った.

  • Environmental Change Point Analysis and Its Application to Agriculture International journal

    Takashi OKAYASU, Andri Prima Nugroho, Daisaku Arita, Akinori Ozaki, Mitsuoka Muneshi, Teruaki NANSEKI, Eiji Inoue, Hirai Yasumaru

    Proceedings of International conference on Instrumentation, Control, Information Technology and System Integration   2013.9

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  • Development of Web-based Change Point Analysis for Field Environmental Information in Agriculture International journal

    Andri Prima NUGROHO, Takashi OKAYASU, Mitsuoka Muneshi, Eiji Inoue, Lilik SUTIARSO, Hirai Yasumaru

    Proceedings of International Symposium on Agricultural and Biosystem Engineering 2013   2013.8

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  • Modeling and Prediction of the Mechanical Interaction between Soil and Tillage Tool by DEM Reviewed International journal

    Takahisa FUKUDA, Takashi OKAYASU, Keita TSUCHIYA, Eiji Inoue, Hirai Yasumaru, Mitsuoka Muneshi

    Proc. 11th Int. Conf. Anal. Discontinuous Deformation   2013.8

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  • Development of Actuation Framework for Agricultural Informatization Supporting System International journal

    Andri, N.P., Okayasu, T., Inoue, E., Hirai, Y. and Mitsuoka, M.

    Proc. IFAC2013 Bio Robotics Conf.   2013.3

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  • Change Point Analysis for Environmental Information in Agriculture Reviewed International journal

    Okayasu, T., Mitsuoka, M., Andri, P.N., Yoshida, H., Nanseki, T. and Inoue, E

    Proc. AFITA/WCCA2012   2012.9

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  • Development of Intelligent Control System for Greenhouse Reviewed International journal

    Andri, P.N., Okayasu, T., Fushihara, H., Mitsuoka, M. and Inoue, E.

    Proc. AFITA/WCCA2012   2012.9

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  • Feasibility Study on Informatization Agricultural Supporting System and Evaluation of its Validity International journal

    Okayasu, T., Yoshida, H., Andri, P.,N., Mitsuoka, M., Inoue, E.

    CIGR-AgEng2012   2012.7

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  • Modeling and prediction of soil cutting behavior by a plow International journal

    Okayasu, T., Morishita, K., Terao, H., Muneshi, M., Inoue, E., Fukami, K.

    CIGR-AgEng2012   2012.7

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  • Development of intelligent irrigation system for greenhouse International journal

    Okayasu, T., Andri, P.,N., Fushihara, Hirano, O., Yoshida, H., Inoue, E.

    Proc. 6th Int. Symp. Mach. Mech. Agr. Biosys. Engng. (ISMAB)   2012.6

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  • Strength evaluation of bearing in sidedisk for cutting small ditches by finite element method International journal

    Terao, H., Okayasu, T., Fkuda, K. Fukami, K., Mitsuoka, M., Inoue, E.

    Proc. 6th Int. Symp. Mach. Mech. Agr. Biosys. Engng. (ISMAB)   2012.6

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  • Application of Change Point Analysis for Long-term Environmental Monitoring Data Reviewed International journal

    Okayasu, T. Mitsuoka, M., Andri P.N., Inoue, E.

    Proceeding on International Workshop on ICT in Geo-Engineering   2012.5

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  • 小明渠作溝用サイドディスク設計のための有限要素法の適用性に関する研究 Reviewed

    大庭裕史,岡安崇史,寺尾悠希,深見公一郎,渡辺輝夫,光岡宗司,井上英二

    農業機械学会誌   2012.5

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  • 農用車両走行による諫早湾干拓土壌の構造と力学特性の変化 Reviewed

    宮嵜朋浩,岡安崇史,杉本知史,井上英二

    農作業研究   2012.1

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  • Development of Simple Field Monitoring System for Agriculture and Evaluation of its Validity Reviewed International journal

    Okayasu, T., Yoshida, H., Afroja, K., Ozaki, A., Mitsuoka, M., Inoue, E.

    Proc. Int. Conf. Env. Aspects Bangladesh   2011.9

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  • 情報化農業支援システムのハウス栽培いちごの生産管理への応用に関する基礎的研究 Reviewed

    吉田博通,岡安崇史,平野修,小野聖一朗,安部貞昭,清水宣雄,光岡宗司,井上英二,崔 重燮

    農業機械学会九州支部誌   2011.8

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  • Prediction of compaction behavior of heavy clayey soil beneath an off-road vehicle International journal

    Miyazaki, T., Okayasu, T., Inoue, E.

    Proc. ASABE2011   2011.8

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  • Feasibility Study on Field Monitoring and Work Recording System in Agriculture International journal

    Okayasu, T., Yoshida, H., Miyazaki, T., Nanseki, T., Mitsuoka, M., Inoue, E.

    Proc. ASABE2011   2011.8

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  • 受口切りの不一致やツル幅の不均一が伐倒方向と作業の安全性に及ぼす影響 Reviewed

    上村巧,岡安崇史,加利屋義広,岡勝,鹿島潤,井上英二

    森林利用学会   2011.3

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  • 小明渠作溝用サイドディスク設計への有限要素法の適用に関する基礎的研究 Reviewed

    大庭裕史,岡安崇史,寺尾悠希,深見公一郎,渡辺輝夫,光岡宗司,井上英二

    農業機械学会九州支部誌   2011.3

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  • Soil Compaction Analysis on Structured Cohesive Soft Ground Reviewed International journal

    Okayasu, T., Kamitsuji, N., Murakami, T., Miyazaki, T., Mitsuoka, M., Inoue, E., Fukami, K.

    Proc. 9th Asia-Pacific Conf. ISTVS   2010.9

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  • Tractor Running Tests at Isahaya Bay Reclamation International journal

    Miyazaki, T., Okayasu, T., Inoue, E.

    Proc. 5th Int. Symp. Mach. Mech. Agr. Biosys. Engng. (ISMAB)   2010.4

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  • Development of Field Monitoring and Work Recording System in Agriculture International journal

    Okayasu,T., Yamabe, N., Marui, A., Miyazaki, T., Mitsuoka, M., Inoue, E.

    Proc. 5th Int. Symp. Mach. Mech. Agr. Biosys. Engng. (ISMAB)   2010.4

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  • 諫早湾干拓土壌におけるトラクタ走行で生じる踏圧現象 Reviewed

    宮嵜朋浩・岡安崇史・山田寧直・井上英二

    農作業研究   2010.2

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  • Development of simple field monitoring system for agricultural production and management International journal

    Okayasu, T., Yamabe,N. Mrui, A. Mitsuoka, M., Inoue, E.

    IWABE2009   2009.12

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  • Numerical Soil Compaction Analysis on Structured Soft Ground International journal

    Okayasu, T., Miyazaki, T., Kamitsuji, N., Mitsuoka, M., Inoue, E., Fukami, K.

    ISTRO2009, Izmir   2009.6

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  • 倒伏初期における追口高さが内部応力に与える影響 Reviewed

    上村巧,岡安崇史,鹿島潤,佐々木達也,岡勝,加利屋義広,井上英二

    森林利用学会   2009.4

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  • ハイパースペクトルカメラ画像を用いた水稲の生育診断・品質評価に関する研究 Reviewed

    平田真理,岡安崇史,羽田野梨絵,山邉信利,安武隼人,内田 進,稲葉繁樹,光岡宗司,井上英二

    農業機械学会九州支部誌   2008.8

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  • Application of Discrete Element Method to Solve Shaking Separation Mechanisms in Head-Feeding Combine Harvester International journal

    Yamagata, Y., Okayasu, T., Eguchi, H., Sinkai, S., Furuno, Y., Mitsuoka, M., Inoue, E., Imamura, E.

    Proc. 4th Int. Symp. Mach. Mech. Agr. Biosys. Engng. (ISMAB)   2008.5

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  • Computational Mechanical Consideration on Soil Compaction Behavior due to Wheel Traffics after Tillage International journal

    Okayasu, T., Matsuda, H., Furuno, Y., Kamitsuji, N., Mitsuoka, M., Inoue, E., Ueno, M., Fukami, K.

    Proc. 4th Int. Symp. Mach. Mech. Agr. Biosys. Engng. (ISMAB)   2008.5

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  • 自脱型コンバイン揺動選別部の性能向上のための数値解析法の開発

    江口 寛,岡安崇史,山形友佑,新開聡,光岡宗司,井上英二,今村英一

    九州大学農学芸誌   2008.3

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  • 営農支援のための圃場気象環境情報モニタリングシステムの開発に関する基礎的研究

    羽田野梨絵,岡安崇史,平田真理,山邉信利,中司 敬,光岡宗司,井上英二

    九州大学農学芸誌   2008.3

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  • Elastoplastic deformation analysis on soil compaction by wheel traffics International journal

    Okayasu, T., Matsuda, H., Furuno, Y., Mitsuoka, M., Inoue, E., Hashiguchi, K.

    Plasticity 2008   2008.1

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  • Utilization of Hyperspectral Imaging Technique for Low Protein Rice Production in Kasuya, Fukuoka International journal

    Okayasu, T., Hadano, R., Hirata, M., Yamabe, N., Yasutake, H., Nakaji, K., Mitsuoka, M., Inoue, E.

    Int. S. Agr. Struct. Agr. Engng. 2007   2007.1

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  • 超過応力テンソル導入による接線粘塑性ひずみ速度を考慮した超過応力モデル Reviewed

    橋口公一,岡安崇史,尾崎利行

    日本機械学會論文集A編   2007.1

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  • Mathematical models for soil displacement under a rigid wheel Reviewed International journal

    Fukami, K., Ueno, M., Hashiguchi, K., Okayasu, T.

    J. Terramech.   2007.1

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  • Finite Element Analysis of Particle Assembly-water Coupled Frictional Contact Problem Reviewed International journal

    CMES   2007.1

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  • 構造を有する地盤の転圧現象に関する弾塑性有限要素解析 Reviewed

    岡安崇史,大山将史,古野裕子,光岡宗司,井上英二,橋口公一

    応用力学論文集(土木学会)   2007.1

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  • Elastoplastic finite element analysis on soil compaction phenomena by wheel traffics International journal

    Okayasu, T., Matsuda, H., Furuno, Y., Mitsuoka, M., Inoue, E., Hashiguchi, K., Ueno, M., Fukami, K.

    Int. WS Agri. Biosy. Engng.   2007.1

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  • Elastoplastic finite element analysis on uplift problem of ground anchor subject to repeated loading Reviewed International journal

    Okayasu T., Ozaki, T., Hashiguchi, K., Inoue, E.

    Proc. 4th Asian-Joint Sympo. Geotech. & Geoenviron. Engng. (JS-Dalian 2006)   2006.1

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  • Finite element analysis on deformation behavior of metallic body International journal

    Okayasu, T., KInoshita, K., Shimomura, T. Hashiguchi, K., Inoue, E..

    Proc. 35th Solid Mech. Conf.   2006.1

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  • Finite Element Analysis of the Wheel Traveling Phenomenon by the Subfriction Surface Model International journal

    Ozaki, S., Hashiguchi, K., Okayasu, T., Chen, D.H.

    International Conference on Computational & Experimental Engineering and Sciences 2005   2005.1

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  • PIV法(粒子画像流速測定法) Reviewed

    岡安崇史

    地盤工学会誌(土と基礎)   2005.1

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  • すべり摩擦現象を考慮した圧密試験の土-水連成有限要素解析 Reviewed

    尾崎伸吾,岡安崇史,橋口公一,陳玳

    応用力学論文集(土木学会)   2005.1

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  • Proposal of elasto-viscoplastic constitutive model based on subloading surface concept and its application to metal material International journal

    Okayasu, T., Takabayashi, R., Hashiguchi, K., Inoue, E..

    International Conference on Computational & Experimental Engineering and Sciences 2005   2005.1

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  • Elastoplastic finite element analysis of footing problem on soil ground by the subloading surface model International journal

    Ozaki, T., Hashiguchi, K., Okayasu, T.

    International Conference on Computational & Experimental Engineering and Sciences 2005   2005.1

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  • Subfriction Surface Model" International journal

    Ozaki, S., Hashiguchi, K., Okayasu, T., Chen, D.H.

    International Conference on Computational & Experimental Engineering and Sciences 2005   2005.1

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  • Finite element analysis on uplift problem of ground anchor, Dislocations International journal

    Okayasu T., Hashiguchi, K., Yajima, D., Ozaki, T., Ozaki, S.

    2005.1

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  • Elastoplastic constitutive equation of volcanic sandy soil “SHIRASU” based on the subloading surface model International journal

    Dislocations, Plasticity and Metal Forming (Proc. Plasticity ’05: 11th Int. Symp. Plasticity and its Application)   2005.1

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  • A basic research of the strength to the solidification soil on the soft ground International journal

    Yoshimaru, T., Okayasu T., Hashiguchi, K., Sakajo, S.

    2005.1

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  • 繰返し荷重を受けるアンカー周辺地盤の変形挙動に関する弾塑性有限要素解析 Reviewed

    岡安崇史,橋口公一,尾崎利行,矢嶋泰基,尾崎伸吾,木下和典

    応用力学論文集(土木学会)   2004.1

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  • Deformation analysis of cohesive soft grounds with solidified surface under fill construction International journal

    Yoshimaru, T., Hashiguchi, K., Okayasu T., Sakajo, S.

    Proc. Int. Conf. Comput. Exper. Eng. Sci.   2004.1

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  • Elastoplastic finite element analysis of the trapdoor problem International journal

    Ozaki, T., Okayasu, T., Hashiguchi, K. Yajima, D.

    Proc. Int. Conf. Comput. Exper. Eng. Sci.   2004.1

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  • Finite element simulation on uplift problem of ground anchor International journal

    Okayasu, T., Hashiguchi, K., Ozaki, T, Yajima, D., Ozaki, S.

    Proc. Int. Conf. Comput. Exper. Eng. Sci.   2004.1

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  • Rate-dependent inelastic constitutive equation: The extension of elastoplasticity Reviewed International journal

    Hashiguchi, K., Okayasu, T. and Saitoh, K.

    Int. J. Plasticity   2004.1

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  • Trap-Door問題に関する弾塑性有限要素解析 Reviewed

    岡安崇史,橋口公一,尾崎利行,矢島泰基,尾崎伸吾

    テラメカニックス   2004.1

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  • PIVによる地盤変形挙動の計測と地盤内応力予測に関する研究 Reviewed

    岡安崇史,橋口公一,尾崎伸吾,武部和之,川口史郎,上野正実,深見公一郎

    テラメカニックス   2004.1

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  • サイロ内紛粒体層の流動現象に関する弾塑性有限要素解析 Reviewed

    岡安崇史,橋口公一,尾崎利行,矢嶋泰基,尾崎伸吾

    農業機械学会誌   2004.1

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  • 下負荷面摩擦モデルを用いた接触・摩擦問題の有限要素解析 Reviewed

    尾崎伸吾,橋口公一,岡安崇史,堀田直岐

    日本機械学会論文集A編   2004.1

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  • 下負荷面摩擦モデルを用いた地盤-杭間の相互作用の弾塑性有限要素解析 Reviewed

    尾崎伸吾,橋口公一,岡安崇史

    応用力学論文集(土木学会)   2004.1

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  • 盛土施工に伴う過圧密地盤に関する基礎的研究 Reviewed

    吉丸哲司,橋口公一,岡安崇史,阪上最一

    応用力学論文集(土木学会)   2004.1

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  • 下負荷面モデルを導入した有限要素法による降下床実験のシミュレーション Reviewed

    尾崎利行,岡安崇史,橋口公一,矢嶋泰基

    応用力学論文集(土木学会)   2004.1

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  • 下負荷面の概念に基づく摩擦理論 Reviewed

    橋口公一,岡安崇史,尾崎伸吾

    日本機械学会論文集A編   2003.1

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  • Tangential stress-rate effect in soils subjected to cyclic circular stress path in the deviatoric stress plane International journal

    Setouchi, H., Hashiguchi, K., Shikanai, T., Okayasu, T.

    Proc. Int. Conf. Comput. Exper. Eng. Sci.   2003.1

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  • Extended friction theory based on the subloading surface model, Discolations International journal

    Hashiguchi, K., Okayasu, T., Ozaki, T.

    2003.1

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  • アンカー引抜時の地盤の変形挙動に関する弾塑性有限要素解析 Reviewed

    岡安崇史,橋口公一,尾崎利行,竹添亮

    応用力学論文集(土木学会)   2003.1

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  • 一般化速度依存性非弾性構成式(金属への適用) Reviewed

    岡安崇史,橋口公一

    日本機械学会論文集A編   2003.1

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  • 新しい土の変位計測法 Reviewed

    岡安崇史,尾崎伸吾,武田敏

    農業機械学会誌   2002.1

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  • Deformation behavior of Shirasu and its prediction by the subloading surface model Reviewed International journal

    Hira, M., Hashiguchi, K., Okayasu, T. and Miwa, K.

    Soils and Foundations   2002.1

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    Deformation behavior of shirasu and its prediction by the subloading surface model

  • Evaluation of typical conventional and unconventional plasticity models for prediction of softening behavior of soils Reviewed International journal

    Hashiguchi, K., Saitoh, K., Okayasu, T. and Tsutsumi, S.

    Geotechnique   2002.1

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    Evaluation of typical conventional and unconventional plasticity models for prediction of softening behavior of soils

  • 弾塑性学に関するインターネット教育の一提案 Reviewed

    岡安崇史・橋口公一・尾崎伸吾

    地盤工学会誌(土と基礎)   2001.1

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  • Time-dependent elastoplastic constitutive equation of soils and its application to FEM implementation Reviewed International journal

    Okayasu, T. and Hashiguchi, K.

    Lowland Tech. Int.   2001.1

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    Time-dependent elastoplastic constitutive equation of soils and its application to fem implementation

  • 繰返し負荷を受ける平板下の地盤の弾塑性有限要素解析 Reviewed

    岡安崇史・橋口公一・堤成一郎・尾崎伸吾・上野正実

    農業機械学会誌   2001.1

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  • 古典塑性論および非古典塑性論の軟化挙動予測特性 Reviewed

    橋口公一・齊藤公志郎・岡安崇史・堤成一郎

    応用力学論文集(土木学会)   2001.1

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  • 拡張下負荷面モデルを導入した有限変形・土-水連成有限要素解析プログラムの開発 Reviewed

    橋口公一,岡安崇史,堤成一郎,上野正実

    農業機械学会誌   2000.1

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  • Deformation behavior of shallow foundation beneath footing subjected to cyclic load International journal

    Okayasu, T., Hashiguchi, K., Tsutsumi, S.

    Proc. Int. Symp. Plasticity 2000 (Proc. Eighth Int. Symp. Plasticity and Its Current Applications)   2000.1

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  • Comparison of Drucker-Prager’s and subloading surface models for prediction of soil deformation behavior International journal

    2000.1

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  • Time-dependent elastoplastic constitutive equation Based on subloading surface model and its application to soils Reviewed International journal

    Hashiguchi, K. and Okayasu, T.

    Soils and Foundations.   2000.1

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    Time-dependent elastoplastic constitutive equation based on subloading surface model and its application to soils

  • 砂地盤上の剛性車輪のけん引変動に関する力学的考察 Reviewed

    上野正実,岡安崇史,橋口公一,鹿内健志,大嶺政朗

    農業機械学会誌   1999.1

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  • Time-dependent constitutive equation of soil International journal

    Hashiguchi, K., Wu, X., Okayasu, T.

    Proc. Int. Symp. Plasticity '99 (Proc. 7th Int. Symp. Plasticity & its Current Appl.   1999.1

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  • 画像処理による土の変位のオンライン計測に関する研究 Reviewed

    橋口公一,岡安崇史,上野正実,鹿内健志

    農業機械学会誌   1998.1

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  • Time-dependent elastoplastic constitutive model Reviewed International journal

    Hashiguchi, K., Wu, X., Okayasu, T. and Tsutsumi, S.,

    Metals and Materials   1998.1

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    Time-dependent elastoplastic constitutive model

  • 走行車輪下の土の変形の精密計測 Reviewed

    鹿内健志,上野正実,橋口公一,能勢行則,岡安崇史

    農業機械学会誌   1997.1

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  • On the general flow rule International journal

    Hashiguchi, K., Okayasu, T., Sakajo, S.

    On the general flow rule, Proc. 6th Int. Symp. Numer. Models Geomech., pp.87-92, 1997.   1997.1

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  • Walking motion of the soil reaction on a whee International journal

    Ueno, M., Shikanai, T., Okayasu, T., Hashiguchi, K., Nohse, Y., Gotoh, M., Uchiyama, K.

    Proc. 4th Asia-Pacific Regional Conf. Terrain Vechicle Systems   1995.1

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  • Soil deformation beneath a rigid wheel International journal

    Ueno, M., Shikanai, T., Okayasu, T., Hashiguchi, K., Nohse, Y., Gotoh, M, Uchiyama, K.

    Proc. 4th Asia-Pacific Regional Conf. Terrain Vechicle Systems   1995.1

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  • Development and Application of a Low-Cost 3-Dimensional (3D) Reconstruction System Based on the Structure from Motion (SfM) Approach for Plant Phenotyping

    Arief, MAA; Nugroho, AP; Putro, AW; Sutiarso, L; Cho, BK; Okayasu, T

    JOURNAL OF BIOSYSTEMS ENGINEERING   49 ( 3 )   326 - 336   2024.9   ISSN:1738-1266 eISSN:2234-1862

  • Enhancing Image Quality Assessment in Plant Phenotyping Robots

    Pham Dong Thanh, Okayasu Takashi, Yasutake Daisuke, Hirai Yasumaru, Ozaki Takenori, Koga Masaharu, Hidaka Kota, Nomura Koichi, Vo Hien Bich

    Agricultural Information Research   33 ( 2 )   97 - 108   2024.7   ISSN:09169482 eISSN:18815219

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    <p>As robotic systems become increasingly integrated into plant phenotyping processes, the quality of images captured plays an increasingly crucial role in accurate data collection and analysis. Here we address the challenge of assessing and enhancing image quality in the context of plant phenotyping robot using a pan-tilt-zoom camera. We present a data-driven approach using machine learning, specifically the Random Forest classifier, to classify both blurred and sharp images. Our method involves feature extraction, data preprocessing, hyperparameter tuning, and cross-validation. The resulting model demonstrates promising performance as indicated by its accuracy, precision, recall, area under the curve (AUC), and feature importance analysis. Notably, our results support a highly accurate classifier, achieving a correct classification rate of 95% for sharp images and 92% for blurred ones, a receiver operating characteristic curve with an AUC of 0.93, and a precision-recall curve with an average precision of 0.91. Shapley Additive Explanations analysis identifies “edge density” and “mean gradient magnitude” as influential to the classifier, offering valuable insights for future feature engineering and model refinement. The classifier has a short inference time (2.8 s) on a Raspberry Pi 4B computer, both improving the quality of captured images and automatically eliminating blurred images. By enhancing image quality assessment, this research improves data reliability and the overall effectiveness of plant phenotyping robots. We discuss the implications of these findings and their practical relevance and suggest directions for future research.</p>

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  • Control of vapor pressure deficit (VPD) in micro-plant factory (McPF) to enhanced spinach microgreens growth

    Dzaky, MAF; Nugroho, AP; Prasetyatama, YD; Sutiarso, L; Falah, MAF; Okayasu, T

    SCIENTIA HORTICULTURAE   332   2024.6   ISSN:0304-4238 eISSN:1879-1018

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    Harnessing the power of Vapor Pressure Deficit (VPD) control, this novel research illuminates a pathway to enhanced plant growth and yield within Micro-Plant Factory (McPF) and Urban Mini-Plant Factory (UMPF) environments. The research focused on the growth parameters of spinach microgreens, with the experimental data originating from each system's upper, central, and lower shelves. Results indicated significantly enhanced plant height and dry weight on the central shelves, attributed to optimal VPD control. Growth analysis also revealed higher relative growth rates (RGR) under tightly managed VPD conditions on the central shelves, even amidst varying environmental parameters. Most notably, effective VPD control translated these growth metrics into increased yields. For instance, a 71 % and 66 % increase in final plant dry weight over the lower and upper shelves was noted. These advances were mirrored in the plant height, which also saw 57 % and 103 % growth. Overall, the findings underscore the critical role of VPD control in plant growth and yield enhancement within structured environments like McPF and UMPF, offering significant insights for future research in manipulating VPD for optimal plant growth and productivity.

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  • Effect of microclimate and photosynthesis on strawberry reproductive growth in a greenhouse: using cumulative leaf photosynthesis as an index to predict the time of harvest

    Shintaro Ono, Daisuke Yasutake, Kensuke Kimura, I. Kengo, Yoshiya Teruya, Kota Hidaka, Gaku Yokoyama, Tomoyoshi Hirota, Masaharu Kitano, Takashi Okayasu, Yukio Ozaki

    Journal of Horticultural Science and Biotechnology   99 ( 2 )   223 - 232   2024.3   ISSN:1462-0316 eISSN:2380-4084

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    We evaluate whether cumulative photosynthesis (A n,C) could predict the time of harvest in strawberry better than light (I C) or temperature (T a,C) as forecast indices. We monitored the daily dynamics of flowering, fruit set, and harvest in over 2,700 fruits across the growing season in a greenhouse in Japan. Photosynthesis was calculated using a biochemical model, and A n,C calculated by totalling the cumulative rate from flowering to harvest in each fruit. I C and T a,C were calculated by totalling daily cumulative light intensity and average temperature. A new index (D) was defined as the normalised variation of A n,C, I C, and T a,C, and a statistical analysis was conducted on the means for each index. The results showed that A n,C had the lowest D (0.114), suggesting that it was a better index for predicting the time of harvest. This study suggests the importance of considering the accumulation of photosynthates in individual fruit, which cannot be achieved by I C or T a,C, these results can be used to improve the forecasting and optimisation of yield. However, further research is required to substantiate these claims.

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  • Control of vapor pressure deficit (VPD) in micro-plant factory (McPF) to enhanced spinach microgreens growth Reviewed

    Dzaky, M. A. F., Nugroho, A. P., Prasetyatama, Y. D., Sutiarso, L., Falah, M. A. F. & Okayasu, T.

    Scientia Horticulturae   2024.1

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  • Effect of microclimate and photosynthesis on strawberry reproductive growth in a greenhouse: using cumulative leaf photosynthesis as an index to predict the time of harvest Reviewed International journal

    Ono, S., Yasutake, D., Kimura, K., Kengo, I., Teruya, Y., Hidaka, K., Yokoyama, G., Hirota, T., Kitano, M., Okayasu, T. & Ozaki, Y.

    Journal of Horticultural Science and Biotechnology   99 ( 2 )   2024.1

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  • Future Phenotyping

    OKAYASU Takashi

    Shokubutsu Kankyo Kogaku   36 ( 1 )   2 - 5   2024   ISSN:18802028 eISSN:18803563

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    DOI: 10.2525/shita.36.2

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  • Eco-friendly strategy for CO2 enrichment performance in commercial greenhouses based on the CO2 spatial distribution and photosynthesis Reviewed International journal

    Zhang, Y., Yasutake, D., Hidaka, K., Kimura, K., Okayasu, T., Kitano, M. & Hirota, T.

    Scientific reports   13 ( 1 )   2023.12

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  • Eco-friendly strategy for CO2 enrichment performance in commercial greenhouses based on the CO2 spatial distribution and photosynthesis

    Yue Zhang, Daisuke Yasutake, Kota Hidaka, Kensuke Kimura, Takashi Okayasu, Masaharu Kitano, Tomoyoshi Hirota

    Scientific Reports   13 ( 1 )   17277   2023.10   ISSN:2045-2322 eISSN:2045-2322

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    Abstract

    CO<sub>2</sub> enrichment is an essential environmental control technology due to its significantly enhancing effect on crop production capacity. Despite being a key energy consumer in protected agriculture (i.e. greenhouse systems), CO<sub>2</sub> enrichment remains at a low energy use efficiency level, highlighting the need for developing more energy-efficiency strategies for CO<sub>2</sub> enrichment. Therefore, this study employed the computational fluid dynamics (CFD) simulation method to replicate the CO<sub>2</sub> diffusion process resulting from CO<sub>2</sub> enrichment in three commercial strawberry greenhouses with varying geometric characteristics. Based on the CFD-simulated CO<sub>2</sub> concentration distributions, the leaf photosynthetic rate was calculated using a mathematical model group. The CO<sub>2</sub> enrichment efficiency was then analysed by calculating the ratio of increased photosynthesis across the cultivation area to the amount of energy (in CO<sub>2</sub> equivalent) used. The efficiency peaked when the average CO<sub>2</sub> concentration was approximately 500 μmol mol<sup>−1</sup>, thereby providing guidance for determining the target concentration of CO<sub>2</sub> enrichment in production. Although this study is limited as the CFD simulation only considered a typical short-period CO<sub>2</sub> enrichment event, future research will provide a broader analysis by considering changes throughout the day.

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  • Plant Phenotyping

    OKAYASU Takashi

    Shokubutsu Kankyo Kogaku   35 ( 2 )   39 - 47   2023   ISSN:18802028 eISSN:18803563

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    DOI: 10.2525/shita.35.39

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  • Crop-localised CO<inf>2</inf> enrichment improves the microclimate, photosynthetic distribution and energy utilisation efficiency in a greenhouse

    Yue Zhang, Daisuke Yasutake, Kota Hidaka, Takashi Okayasu, Masaharu Kitano, Tomoyoshi Hirota

    Journal of Cleaner Production   371   2022.10   ISSN:0959-6526 eISSN:1879-1786

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    In greenhouse cultivation, microclimate control is a highly energy-consuming process, and CO2 enrichment, which is a part of it, requires the direct consumption of fossil fuel energy. To achieve sustainable and economical greenhouse management, we must understand the performance and energy utilisation efficiency of CO2 enrichment in greenhouses. In this study, we conducted computational fluid dynamics (CFD) simulations for two CO2 enrichment methods in a strawberry greenhouse: (1) conventional overall greenhouse enrichment (‘Entire Enrichment’) and (2) crop-localised enrichment (‘Local Enrichment’). The spatial distribution of microclimate parameters was simulated using a CFD model; based on the results, the spatial distribution of the crop photosynthetic rate was also simulated using an environment–plant coupled model group. Furthermore, we quantitatively analysed the efficiency of CO2 enrichment (ECE) by calculating the changes in the photosynthetic carbon assimilation capacity of the crop canopy in relation to CO2 usage, which allowed us to propose a more efficient enrichment strategy. Compared with the Entire Enrichment method, the Local Enrichment method reduced the effects on greenhouse temperature and humidity but increased the average CO2 concentration inside the canopy by 264 μmol mol−1. As a result, Local Enrichment increased the average leaf photosynthetic rate inside the canopy by 1.48 μmol m−2 s−1. According to ECE analysis, Local Enrichment has huge advantages over Entire Enrichment; the mean ECE of Local Enrichment was approximately 4.4 times higher than that of Entire Enrichment (25.7 and 5.9 mmol mol−1, respectively). Moreover, scenario analysis indicated that the Local Enrichment system could be applied to larger greenhouses and improves ECE relative to that in a conventional system. Having compared the two enrichment methods comprehensively, we conclude that the Local Enrichment method could significantly improve the environmental parameters around the crop canopy in relation to photosynthesis and greatly enhance CO2 utilisation efficiency.

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  • Crop-localised CO2 enrichment improves the microclimate, photosynthetic distribution and energy utilisation efficiency in a greenhouse Reviewed International journal

    Zhang, Y., Yasutake, D., Hidaka, K., Okayasu, T., Masaharu, K. & Hirota, T.

    Journal of Cleaner Productio   371   2022.10

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  • A canopy photosynthesis model based on a highly generalizable artificial neural network incorporated with a mechanistic understanding of single-leaf photosynthesis

    Takahiro Kaneko, Koichi Nomura, Daisuke Yasutake, Tadashige Iwao, Takashi Okayasu, Yukio Ozaki, Makito Mori, Tomoyoshi Hirota, Masaharu Kitano

    Agricultural and Forest Meteorology   323   109036 - 109036   2022.8   ISSN:0168-1923 eISSN:1873-2240

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    DOI: 10.1016/j.agrformet.2022.109036

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  • A canopy photosynthesis model based on a highly generalizable artificial neural network incorporated with a mechanistic understanding of single-leaf photosynthesis Reviewed International journal

    Kaneko, T., Nomura, K., Yasutake, D., Iwao, T., Okayasu, T., Ozaki, Y., Mori, M., Hirota, T. & Masaharu, K.

    Agricultural and Forest Meteorology   323   2022.8

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  • Mini plant factory development using IoT and cloud system for urban greens cultivation Reviewed International journal

    Dzaky, M. A. F., Nugroho, A. P., Prasetyatama, Y. D., Falah, M. A. F., Sutiarso, L. & Okayasu, T.

    IOP Conference Series: Earth and Environmental Science   1116 ( 1 )   2022.8

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  • Crop-local CO<inf>2</inf> enrichment improves strawberry yield and fuel use efficiency in protected cultivations

    Kota Hidaka, Shunji Nakahara, Daisuke Yasutake, Yue Zhang, Takashi Okayasu, Kazuhiro Dan, Masaharu Kitano, Kazuyoshi Sone

    Scientia Horticulturae   301   2022.7   ISSN:0304-4238 eISSN:1879-1018

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    In protected strawberry (Fragaria × ananassa Duch.) cultivation, CO2 enrichment is essential to enhance both fruit quality and yield. Fuel burning generators are commonly used to supply CO2 to entire commercial greenhouse space. However, methods that are less fuel-based are desired for contemporary agricultural practices. A new crop-local CO2 enrichment system using a modified fuel-burning generator has been developed to increase yields and decrease the fuel required for CO2 enrichment in greenhouse strawberry production. This crop-local CO2 enrichment (CLC) method directly supplies CO2 from perforated tubes set in the interrow space of the plant canopy. The effects of this technique on fruit quality, fruit yield, and fuel use efficiency have been examined in comparison with conventional CO2 enrichment (CC) practices. The CLC method increased CO2 concentration inside the plant canopy by 100–200 μmol mol–1 when compared with CC under the ventilating conditions by a roof window. This resulted in significant increases of approximately 10–26% in the average fruit weight, 13% in the cumulative fruit number, and 22% in cumulative marketable yield when compared to CC. Furthermore, cumulative fuel consumption was approximately 27% lower with the CLC method when compared to CC. These results indicate that CLC improves fuel use efficiency when compared with CC as it increased yields and decreased fuel consumption.

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  • Crop-local CO2 enrichment improves strawberry yield and fuel use efficiency in protected cultivations Reviewed International journal

    Crop-local CO2 enrichment improves strawberry yield and fuel use efficiency in protected cultivations Hidaka, K., Nakahara, S., Yasutake, D., Zhang, Y., Okayasu, T., Dan, K., Masaharu, K. & Sone, K.

    Scientia Horticulturae   2022.7

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  • Dynamics of carbon export from leaves as translocation affected by the coordination of carbohydrate availability in field strawberry Reviewed International journal

    Nakai, H., Yasutake, D., Kimura, K., I, K., Hidaka, K., Eguchi, T., Hirota, T., Okayasu, T., Ozaki, Y. & Kitano, M.

    Environmental and Experimental Botany   196   2022.4

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  • Dynamics of carbon export from leaves as translocation affected by the coordination of carbohydrate availability in field strawberry

    Nakai, H; Daisuke,; Kimura, K; Kengo, I; Hidaka, K; Eguchi, T; Hirota, T; Okayasu, T; Ozaki, Y; Kitano, M

    ENVIRONMENTAL AND EXPERIMENTAL BOTANY   196   2022.4   ISSN:0098-8472 eISSN:1873-7307

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    Carbon export from leaves as translocation is a result of plant coordination of leaf carbohydrate availability. Carbohydrate availability coordination is actively studied in model plants (Arabidopsis) under regulated conditions and can be optimized to increase productivity. However, in horticultural crops grown under field conditions, carbon export dynamics and coordination are poorly understood. The objective of this study was to analyze the dynamics of carbon export from leaves and the effects of carbohydrate availability coordination on these dynamics in strawberry grown under field conditions. Through three different day/night cycles, we measured leaf carbohydrate concentrations and photosynthetic rates and evaluated the dynamics of carbon export based on the leaf carbon balance. During the daytime, when carbon resources are almost entirely supplied by photosynthesis, strawberry leaves stored sucrose and starch. Starch synthesis was remarkable when sucrose concentration exceeded 150 mmol m−2, and the carbon export rate tended to increase. In the nighttime, when carbon resources are supplied by leaf sucrose and starch stored during the daytime, the starch concentrations decreased linearly and the carbon export rate was lower than the daytime level. These results indicate that in the daytime, the coordination of leaf carbohydrate availability for starch storage and carbon export was affected by leaf sucrose concentration, whereas, at night, it was regulated by leaf carbon storage levels at dusk rather than sucrose concentration. Thus, this study elucidates the basis of carbon export dynamics in strawberry leaves under field conditions, advancing our understanding of the role of leaf carbohydrates in translocation.

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  • Building of the Predictive Model for Ripened Brown Rice Yield Using Data Collected in the Production Sites and Analysis of Determinants of Yield Classes

    HIRAI Yasumaru, YAMAKAWA Takeo, INOUE Eiji, OKAYASU Takashi, MITSUOKA Muneshi

    Journal of the Japanese Agricultural Systems Society   38 ( 1 )   1 - 14   2022.3   ISSN:09137548 eISSN:21890560

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    <p>Rice production in Japan faces concerns over yield reduction and poor grain quality owing to unstable weather conditions and the deterioration of soil fertility. In addition, it needs to increase competitiveness against foreign agricultural products and other food products. This situation requires to develop analytical methods to effectively use data regarding agriculture, which is becoming easily available with information and communication technologies. The objectives of this study were 1) to build the predictive model of three classes (low, middle, and high) of ripened brown rice yield using data collected in the production sites, 2) to clarify limiting factors of yield using the predictive model, and 3) to investigate measures to improve yield. We applied support vector machine to build the predictive model using data collected from 2011 to 2016 in a total of 90 paddy fields. The paddy fields where Hinohikari cultivar was cultivated were located in the city of Itoshima, Fukuoka Prefecture. The predictive model built included three explanatory variables: the number of rough rice, daily mean sunshine hours during the period from five days after heading to the late ripening period, and mineral nitrogen supply from the early panicle formation to the late ripening periods. The predictive model achieved the classification accuracy of 77.8%. Particularly, paddy fields categorized in the low yield class had small tiller number at the panicle initiation stage. As the result, small number of rough rice decreased yield. Some paddy fields, where their yield was categorized in the middle class and was categorized in the high class with the number of rough rice greater than 28 thousand m<sup>-2</sup>, reduced yield because of shortage of mineral nitrogen supply during the ripening period. The measures to improve yield were as follows: for the paddy fields categorized in low yield class, to ensure appropriate number of rough rice by increasing tiller number during the vegetative growth stage, and for paddy fields where shortage of mineral nitrogen supply during the ripening period reduced yield, to apply topdressing two times to meet the standard nitrogen application rate in the surveyed region (3.6 kg/10a in total). This measure obtained for topdressing indicates that the analysis using survey data collected in rice production sites supported the standard that has been determined by local cultivation tests as well as trial and error in the production sites.</p>

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  • Closed Chamber System for Easily Measuring the Respiration Rate of Intact Fruits

    ONO Shintaro, YASUTAKE Daisuke, YOKOYAMA Gaku, TERUYA Yoshiya, HIDAKA Kota, OKAYASU Takashi, NOMURA Koichi, KITANO Masaharu

    Environment Control in Biology   60 ( 1 )   33 - 37   2022.1   ISSN:1880554X eISSN:18830986

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    <p> We designed and constructed a light-shielding, closed fruit chamber system that can easily measure the respiration rate of intact fruits. Intact strawberries (<i>Fragaria×ananassa</i> Duch. cv. Fukuoka S6) were placed in the newly-developed system, and the change in CO<sub>2</sub> concentration was measured. It was observed that this method was a valid means of determining the change in the CO<sub>2</sub> concentration. Also, the respiration rate of the intact fruits could be evaluated appropriately by fitting a theoretical equation to the change in CO<sub>2</sub> density for 180 s after closing the chamber measured by newly-developed system and obtaining the initial slope. This method was applied to intact strawberries at different ripening stages, and the effect of on the respiration rate was investigated. As the ripening stage progressed and the volume of fruits increased, the respiration rate per fruit at each ripening stage also significantly increased. However, there was no significant difference in the respiration rate per unit fruit volume at each ripening stage. These results suggest that newly-developed system is effective in measuring the respiration rate per fruit. This system would contribute to the comprehension of intact fruit respiration and photosynthate translocation to fruits.</p>

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  • Closed Chamber System for Easily Measuring the Respiration Rate of Intact Fruits Reviewed International journal

    Closed Chamber System for Easily Measuring the Respiration Rate of Intact Fruits Ono, S., Yasutake, D., Yokoyama, G., Teruya, Y., Hidaka, K., Okayasu, T., Nomura, K. & Masaharu, K.

    Environmental Control in Biology   60 ( 1 )   2022.1

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  • Mini plant factory development using IoT and cloud system for urban greens cultivation

    Dzaky M.A.F., Nugroho A.P., Prasetyatama Y.D., Falah M.A.F., Sutiarso L., Okayasu T.

    IOP Conference Series: Earth and Environmental Science   1116 ( 1 )   2022   ISSN:17551307

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    A significant urban population increases with the rising demand for higher food quality and security. Adapting the current food chain system and our eating patterns are needed to make them more sustainable. Plant factories are one approach for making the food chain system more sustainable. However, plant factory systems typically require significant initial capital expenditure. As a result, a mini plant factory, which is more affordable and flexible, will be appropriate in urban areas. The objective of this study was to design, build, and evaluate a mini plant factory system for horticultural crop production. The mini plant factory system comprises a mini cultivation room with three growing shelves equipped with a microclimate sensor, nutrient dosing system, artificial growth light, and ventilation system. Sensors and actuators are integrated with the Agrieye Cloud system for monitoring and control and can autonomously execute data retrieval and actuation. Mini Plant Factory operates by automatically capturing monitoring data every five minutes; if a value exceeds the limit, the actuator control system activates to stabilize that value. The linear regression test yielded the most excellent R2 value of 0.999 for sensor calibration. The validation test was conducted using RMSE (Root Mean Square Error) and MAPE (Mean Absolute Percentage Error). The results show that the lowest RMSE values are 0.133, and the lowest MAPE values are 0.082%. The data logging system's performance is perfect. The control and scheduling system works well but does not function optimally since there are no interruptions throughout the data gathering process.

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  • Investigation of the Feasibility of Applying Maturity-Stage Green Manure (Crimson Clover) for Rice Production through a Pot Experiment

    Ko Kyi Mon Mon, Hirai Yasumaru, Yamakawa Takeo, Mori Yuki, Inoue Eiji, Okayasu Takashi, Mitsuoka Muneshi

    Journal of the Japanese Society of Agricultural Technology Management   27 ( 3 )   85 - 98   2022   ISSN:13410156 eISSN:24242403

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    DOI: 10.20809/seisan.27.3_85

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  • Development of Plant Phenotyping Platform Using Low-Cost IoT Devices and Its Performance Evaluation

    Jiro Ito, Takashi Okayasu, Koichi Nomura, Daisuke Yasutake, Tadasige Iwao, Yukio Ozaki, Eiji Inoue, Yasumaru Hirai, Muneshi Mitsuoka

    Proceedings of the Forum "Math-for-Industry" 2019   109 - 116   2022   ISSN:2198-350X ISBN:9789811911538, 9789811911545 eISSN:2198-3518

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  • Application of 3D reconstruction system based on close-range photogrammetry method for plant growth estimation

    Putro A.W., Nugroho A.P., Sutiarso L., Okayasu T.

    IOP Conference Series: Earth and Environmental Science   1038 ( 1 )   2022   ISSN:17551307

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    Plant growth monitoring is an important aspect of precision agriculture implementation. The monitoring can be performed by estimating the volume by the result of Three-dimensional (3D) reconstruction by using Close-range Photogrammetry. However, to present the functionality of the system for plant growth behavior, it is necessary to evaluate its accuracy and performance. In this study, a plant growth estimation system based on non-contact measurement using the Close-Range Photogrammetry (CRP) method for volume estimation of Chinese cabbage was developed to measure the growth. The objective of this study was to apply a 3D reconstruction system using the CRP method for validating volume variation and estimate the rate of growth of Chinese cabbage. This system consists of Canon 700D's DSLR camera and camera stabilizer. The stage of image processing using 3DF's Zephyr Pro photogrammetric software for generating 3D models. For the validation purposes and its functionality for modelling and estimating volumetric objects, Chinese cabbage with four size variations at different ages was used (14, 21, 28, and 35 Days After Transplant). As the result, the developed system could observe and generate the plant in a three-dimensional manner resemble the actual plant model. Farther the volumetric validation could be obtained with the result of R2 of 0,9991, Root Mean Square Error (RMSE) = 26,08 cm3 and Mean Absolute Percentage Error (MAPE) = 10,43%. From the result, the system could be used for generating plants into 3D objects and its accuracy of measurement is quite good. Further improvements in accuracy need to be made for precise measurements as well as validation for other crop types.

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  • Analysis of airflow distribution on urban mini plant factory using computational fluid dynamics

    Suwardana R., Nugroho A.P., Prasetyatama Y.D., Falah M.A.F., Sutiarso L., Okayasu T.

    IOP Conference Series: Earth and Environmental Science   1116 ( 1 )   2022   ISSN:17551307

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    Limited land for agricultural cultivation in urban areas makes it difficult to fulfill for healthy and sustainable food. Mini Plant Factory is an alternative to produce food, especially vegetables. In the Mini Plant Factory, the distribution of air flow is one thing that must be considered because the air flow will affect the growth of the plants in it so it is necessary to do an analysis to determine the good air flow in the mini plant factory using Computational Fluid Dynamics (CFD) software. The purpose of this study was to analyse the aeration of the air flow in the mini plant factory using Computational Fluid Dynamics. This research was carried out at smart agriculture UGM, in this study using a mini plant factory measuring 70 x 40 x 150 cm, which is equipped with a temperature sensor (DHT 22) of 1 units in each shelf and 1 unit on the outside for measure environmental conditions, with a total number of 4 temperature sensors, the mini plant factory is also equipped with an automatic nutrition system that is integrated with the cloud, and is equipped with artificial lighting. CFD analysis was carried out using the Ansys 2022 software, the laptop specifications used were AMD Ryzen 7 4800 H, NVIDIA GeForce RTX 3050. Temperature data was measured during the observation period. The analysis method in CFD has several stages, namely preparation, meshing workflow, mesh, models, materials, boundary conditions, solution and post-processing. The last part is data validation, namely by making a comparison between the CFD results and the actual data, then calculating the error value using MAPE. The expected result are visualisation various distribution of aeration temperatures inside mini plant factory, optimum aeration design for mini plant factory.

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  • Analysis of airflow distribution on urban mini plant factory using computational fluid dynamics Reviewed International journal

    Suwardana, R., Nugroho, A. P., Prasetyatama, Y. D., Falah, M. A. F., Sutiarso, L. & Okayasu, T.

    IOP Conference Series: Earth and Environmental Science   1116   2021.10

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  • Application of 3D reconstruction system based on close-range photogrammetry method for plant growth estimation Reviewed International journal

    Putro, A. W., Nugroho, A. P., Sutiarso, L. & Okayasu, T.

    IOP Conference Series: Earth and Environmental Science   1038   2021.10

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  • Effect evaluation of drainage condition and water content on cyclic plastic deformation of aged ballast and its estimation models Reviewed International journal

    Yang, J., Ishikawa, T., Tokoro, T., Nakamura, T., Kijiya, I., Okayasu, T.

    Transportation Geotechnics   283   2021.6

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  • Long-term compound interest effect of CO2 enrichment on the carbon balance and growth of a leafy vegetable canopy Reviewed International journal

    Nomura, K., Yasutake, D., Kaneko, T., Takada., A., Okayasu, T., Ozaki, Y., Mori, M., Kitano, M.

    Scientia Horticulturae   283   2021.6

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  • Investigation of the feasibility of applying maturity-stage green manure (crimson clover) for rice production through a pot experiment Reviewed

    Ko, K. M. M,, Hirai, Y., Yamakawa, T., Mori, Y., Inoue, E., Okayasu, T., Mitsuoka, M.

    Journal of Japanese Society of Agricultural Technology Management   27 ( 3 )   2021.2

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  • Volume Measurement of Particle Layers in a Container by Using Helmholtz Resonance

    Inoue, S., Hirai, Y., Inagaki, S., Inoue, E., Okayasu, T., Mitsuoka, M.

    J. Faculty of Agriculture, Kyushu University   66 ( 1 )   2021.2

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    Repository Public URL: https://catalog.lib.kyushu-u.ac.jp/opac_detail_md/?lang=0&amode=MD100000&bibid=4363556

  • An Evaluation Method for Threshing Operations Using a Rod–shaped Threshing Tooth Acting on a Single Rice

    66 ( 1 )   2021.2

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    Repository Public URL: http://hdl.handle.net/2324/4363552

  • Mobile mecavision: automatic plant monitoring system as a precision agriculture solution in plant factories International journal

    Wijanarko, A., Nugroho, A.P., Kusumastuti, A.I., Dzaky, M.A.F., Masithoh, R.E., Sutiarso, L., Okayasu, T.

    IOP Conference Series: Earth and Environmental Science,   2021.1

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  • Development of environmental monitoring systems based on LoRa with cloud integration for rural area International journal

    Hidayat, M.S., Nugroho, A.P., Sutiarso, L., Okayasu, T.

    IOP Conference Series: Earth and Environmental Science,   2021.1

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  • Appropriate adaptation of precision agriculture technology in open field cultivation in tropics International journal

    Nugroho, A.P., Sutiarso, L., Okayasu, T.

    IOP Conference Series: Earth and Environmental Science,   2021.1

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  • Quantification of leaf movement to study the circadian rhythm using the optical flow International journal

    Nugroho, A.P., Maghfiroh, S., Fatmawati, D., Edwantiar, G.P., Sutiarso, L., Masithoh, R.E., Okayasu, T.

    IOP Conference Series: Earth and Environmental Science,   2021.1

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  • Implementation of crop growth monitoring system based on depth perception using stereo camera in plant factory International journal

    Nugroho, A.P., Fadilah, M.A.N., Wiratmoko, A., Azis, Y.A., Efendi, A.W., Sutiarso, L., Okayasu, T.

    IOP Conference Series: Earth and Environmental Science,   2021.1

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  • Development of short-term evapotranspiration forecasting model using time series method for supporting the precision agriculture management in tropics International journal

    Nugroho, A.P., Rahayu, D.E., Sutiarso, L., Fallah, M.A.F., Okayasu, T.

    IOP Conference Series: Earth and Environmental Science,   2021.1

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  • Plant growth prediction model for lettuce (Lactuca sativa.) in plant factories using artificial neural network International journal

    Rizkiana, A., Nugroho, A.P., Salma, N.M., Afif, S., Masithoh, R.E., Sutiarso, L., Okayasu, T.

    IOP Conference Series: Earth and Environmental Science,   2021.1

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  • Three-dimensional (3D) reconstruction for non-destructive plant growth observation system using close-range photogrammetry method International journal

    Arief, M.A.A., Nugroho, A.P., Putro, A.W., Dananta, D.H., Masithoh, R.E., Sutiarso, L., Okayasu T.

    IOP Conference Series: Earth and Environmental Science,   2021.1

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  • Prediction of Tractor Behavior Based on Reconstructed Terrain Profiles by Stereo-vision Camera - Influence of Stereo-vision Camera Arrangement on Reconstructed Terrain Profiles accuracy ? Reviewed

    Shin,S., Mitsuoka,M., Inoue, E., Okayasu, T., Hirai, Y., Choe, J.

    Journal of the Japanese Society of Agricultural Machinery and Food Engineers   82 ( 5 )   2020.9

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  • Long-term compound interest effect of CO2 enrichment on the carbon balance and growth of a leafy vegetable canopy Reviewed International journal

    Nomura, K., Yasutake, D., Kaneko, T., Takada., A., Okayasu, T., Ozaki, Y., Mori, M., Kitano, M.

    Scientia Horticulturae   2020.9

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  • CFD analysis for evaluating and optimizing spatial distribution of CO2 concentration in a strawberry greenhouse under different CO2 enrichment methods Reviewed International journal

    Zhang, Y., Yasutake, D., Hidaka, K., Kitano, M., Okayasu, T.

    Computers and Electronics in Agriculture   179   2020.9

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  • Prediction of Tractor Behavior based on Reconstructed Terrain Profiles Using Stereo-vision Camera ? Investigation of tractor behavior simulation on reconstructed ground and actual ground ? Reviewed

    Shin,S., Mitsuoka,M., Inoue, E., Okayasu, T., Hirai, Y., Matsui, M., Choe, J.

    Journal of the Japanese Society of Agricultural Machinery and Food Engineers   82 ( 3 )   2020.9

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  • グレンタンクに種々の形状で堆積した籾層の重量検量式 Reviewed

    平井 康丸, 樫野 雅和, 上加郁朗, 光岡宗司, 井上英二, 岡安崇史

    農業食料工学会誌   82 ( 4 )   2020.7

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  • Prediction of Tractor Behavior Based on Reconstructed Terrain Profiles by Stereo-vision Camera - Influence of Stereo-vision Camera Arrangement on Reconstructed Terrain Profiles accuracy – Reviewed

    82 ( 3 )   2020.5

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  • Effects of supplemental lighting during the period of rapid fruit development on the growth, yield, and energy use efficiency in strawberry plant production Reviewed International journal

    Yoneda, A., Yasutake, D., Hidaka, K., Muztahidin, N., Miyoshi, Y., Kitano, M., Okayasu, T.

    International Agrophysics   34 ( 2 )   2020.3

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  • Design and Test of a Flow Valve Orifice in a Crane Hoisting System

    Li, M., Mitsuoka, M., Inoue, E., Okayasu, T., Hirai, Y., Song, X.

    J. Faculty of Agriculture, Kyushu University   65 ( 1 )   2020.2

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  • Long-term and continuous measurement of canopy photosynthesis and growth of spinach Reviewed

    Koichi Nomura, Akihiro Takada, Hirosato Kunishige, Yukio Ozaki, Takashi Okayasu, Daisuke Yasutake, Masaharu Kitano

    Environmental Control in Biology   58 ( 2 )   21 - 29   2020.1

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    DOI: 10.2525/ecb.58.21

  • Physicochemical properties and nitrogen mineralization of maturity-stage green manure (crimson clover) and the effects on growth of rice cultivated in a wagner Pot Reviewed

    Ko, K. M. M,, Hirai, Y., Yamakawa, T., Inoue, E., Okayasu, T., Mitsuoka, M.

    Journal of Japanese Society of Agricultural Technology Management   27 ( 1 )   2020.1

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  • Long-term and continuous measurement of canopy photosynthesis and growth of spinach Reviewed

    Koichi Nomura, Akihiro Takada, Hirosato Kunishige, Yukio Ozaki, Takashi Okayasu, Daisuke Yasutake, Masaharu Kitano

    Environmental Control in Biology   58 ( 2 )   21 - 29   2020.1

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    DOI: 10.2525/ecb.58.21

  • Crop growth prediction model at vegetative phase to support the precision agriculture application in plant factory

    Aulia Rizkiana, Andri Prima Nugroho, Muhammad Abiyyu Irfan, Lilik Sutiarso, Takashi Okayasu

    International Conference on Science and Applied Science 2019, ICSAS 2019 International Conference on Science and Applied Science, ICSAS 2019   2019.12

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    DOI: 10.1063/1.5141717

  • Design and performance evaluation of multi-camera for continuous plant motion monitoring system

    Dian Fatmawati, Andri Prima Nugroho, Arifin Widiyatmoko, Lilik Sutiarso, Takashi Okayasu

    International Conference on Science and Applied Science 2019, ICSAS 2019 International Conference on Science and Applied Science, ICSAS 2019   2019.12

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    DOI: 10.1063/1.5141716

  • Development of mobile RoboVision with stereo camera for automatic crop growth monitoring in plant factory

    Anggit Wijanarko, Andri Prima Nugroho, Lilik Sutiarso, Takashi Okayasu

    International Conference on Science and Applied Science 2019, ICSAS 2019 International Conference on Science and Applied Science, ICSAS 2019   2019.12

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    DOI: 10.1063/1.5141713

  • Implementation of leaf motion monitoring system to study plant behavior with variations of the lighting interval in Capsicum annuum L.

    Siti Maghfiroh, Andri Prima Nugroho, Adetya Raya Putra, Lilik Sutiarso, Takashi Okayasu

    International Conference on Science and Applied Science 2019, ICSAS 2019 International Conference on Science and Applied Science, ICSAS 2019   2019.12

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    DOI: 10.1063/1.5141715

  • Appropriate adaptation of precision agriculture technology in open field cultivation in tropics Reviewed

    A. P. Nugroho, L. Sutiarso, T. Okayasu

    3rd International Symposium on Agricultural and Biosystem Engineering, ISABE 2019 IOP Conference Series: Earth and Environmental Science   355 ( 1 )   2019.11

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    DOI: 10.1088/1755-1315/355/1/012028

  • 下負荷面モデルを用いた繰返し載荷を受けた道床バラストの弾塑性変形挙動の検討 Reviewed

    木次谷 一平, 伊藤壱記, 中村貴久, 石川達也, 岡安崇史

    土木学会論文集E1(舗装工学)   2019.11

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  • Development of environmental monitoring systems based on LoRa with cloud integration for rural area Reviewed

    M. S. Hidayat, A. P. Nugroho, L. Sutiarso, T. Okayasu

    3rd International Symposium on Agricultural and Biosystem Engineering, ISABE 2019 IOP Conference Series: Earth and Environmental Science   355 ( 1 )   2019.11

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    DOI: 10.1088/1755-1315/355/1/012010

  • dSPACE based Hardware in the loop Testing Platform for Powertrain Management Unit of Electric Tractor International journal

    Wu, ZB., Xie, B., Li, Z., Mitsuoka, M., Inoue, E., Okayasu, T., Hirai, Y.

    Journal of the Faculty of Agriculture Kyushu University   2019.10

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  • dSPACE based Hardware in the loop Testing Platform for Powertrain Management Unit of Electric Tractor

    Wu, Z., Xie, B., Li, Z., Mitsuoka, M., Inoue, E., Okayasu, T., Hirai, Y.

    J. Faculty of Agriculture, Kyushu University   64 ( 2 )   2019.9

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  • Design and Experiment of a Semiphysical Simulation Platform of the Lifting System of a Tractor with an Adaptive Function

    Li, Z., Mitsuoka, N., Inoue, E., Okayasu, T., Hirai, Y., Liu, J.

    J. Faculty of Agriculture, Kyushu University   64 ( 2 )   2019.9

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  • Modelling and verification of driving torque management for electric tractor Dual-mode driving intention interpretation with torque demand restriction Reviewed

    Zhongbin Wu, Bin Xie, Zhen Li, Ruijuan Chi, Zhiyong Ren, Yuefeng Du, Eiji Inoue, Mitsuoka Muneshi, Takashi Okayasu, Hirai Yasumaru

    Biosystems Engineering   182   65 - 83   2019.6

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    DOI: 10.1016/j.biosystemseng.2019.04.002

  • Modelling and verification of driving torque management for electric tractor Dual-mode driving intention interpretation with torque demand restriction Reviewed

    Zhongbin Wu, Bin Xie, Zhen Li, Ruijuan Chi, Zhiyong Ren, Yuefeng Du, Eiji Inoue, Muneshi Mitsuoka, Takashi Okayasu, Yasumaru Hirai

    Biosystems Engineering   182   65 - 83   2019.6

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    DOI: 10.1016/j.biosystemseng.2019.04.002

  • Variable fertilizer recommendation for grass production by image–based growth status

    64 ( 1 )   2019.2

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  • Behavior Simulation of Tractor Driven on Slopes and Undulating Roads

    Choe, J.S., Akimune, H., Shin, S., Inoue, E., Mitsuoka, M., Okayasu, T., Hirai, Y.

    J. Faculty of Agriculture, Kyushu University   64 ( 1 )   2019.2

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  • Testing the Tractor Behavior Simulation with Experimental Driving of a Model Tractor

    Choe, J.S., Akimune, H., Shin, S., Inoue, E., Mitsuoka, M., Okayasu, T., Hirai, Y., Inoure, E.

    J. Faculty of Agriculture, Kyushu University   64 ( 1 )   2019.2

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  • Integrated contextual learning environments with sensor network for crop cultivation education Concept and design

    Rin Ichiro Taniguchi, Daisaku Arita, Atsushi Shimada, Masanori Yamada, Yoshiko Goda, Ryota Yamamoto, Takashi Okayasu

    16th International Conference on Cognition and Exploratory Learning in Digital Age, CELDA 2019 16th International Conference on Cognition and Exploratory Learning in Digital Age, CELDA 2019   242 - 248   2019.1

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  • Yield visualization based on farm work information measured by smart devices Reviewed

    Yoshiki Hashimoto, Daisaku Arita, Atsushi Shimada, Takashi Yoshinaga, Takashi Okayasu, Hideaki Uchiyama, Rin-Ichiro Taniguchi

    Sensors (Switzerland)   18 ( 11 )   2018.11

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    DOI: 10.3390/s18113906

  • Yield visualization based on farm work information measured by smart devices Reviewed

    Yoshiki Hashimoto, Daisaku Arita, Atsushi Shimada, Takashi Yoshinaga, Takashi Okayasu, Hideaki Uchiyama, Rin Ichiro Taniguchi

    Sensors (Switzerland)   18 ( 11 )   2018.11

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    DOI: 10.3390/s18113906

  • Relationships between Mass and Porosity of Rough Rice Piled in a Combine Grain Tank Reviewed International journal

    Yoshizak, R., Hirai, Y., Mitsuoka, M., Inagaki, S., Inoue, E., Okayasu, T.

    Proceedings of the 9th International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB)   2018.5

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  • Effects of different application methods of fertilizer and manure on soil chemical properties and yield in whole crop rice cultivation Reviewed

    Borin Khem, Hirai Yasumaru, Takeo Yamakawa, Yuki Mori, Eiji Inoue, Takashi Okayasu, Mitsuoka Muneshi

    Soil Science and Plant Nutrition   64 ( 3 )   406 - 414   2018.5

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    DOI: 10.1080/00380768.2018.1443399

  • Investigation of Terrain Slope Information and Tractor Driving Simulation on Reconstructed Ground Reviewed International journal

    Shin, S., Inoue, E., Mitsuoka, M., Okayasu, T., Hirai, Y., Matsui, M.

    Proceedings of the 9th International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB)   2018.5

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  • Analysis of the load of a transplanter PTO shaft based on the planting distance Reviewed

    Wan Soo Kim, Yeon Soo Kim, Yong Joo Kim, Chang Hyun Choi, Eiji Inoue, Takashi Okayasu

    Journal of the Faculty of Agriculture, Kyushu University   63 ( 1 )   97 - 102   2018.2

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  • Performance analysis for a card cleaner type separating system of pepper harvester Reviewed

    Yeon Ju Jo, Young Sun Kang, Ju Seok Nam, Jung Seob Choe, Eiji Inoue, Takashi Okayasu, Dae Cheol Kim

    Journal of the Faculty of Agriculture, Kyushu University   63 ( 1 )   103 - 111   2018.2

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  • Identification of configurational effectiveness on improvement of tractor stability on uneven roads Reviewed

    Zhen Li, Mitsuoka Muneshi, Eiji Inoue, Takashi Okayasu, Hirai Yasumaru, Zhongxiang Zhu, Zhenghe Song, Enrong Mao

    Journal of the Faculty of Agriculture, Kyushu University   63 ( 1 )   113 - 117   2018.2

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  • Characteristics of low-light LED as supplemental lighting and its effects on leaf gas exchange in strawberry Reviewed

    Nur Iman Muztahidin, Daisuke Yasutake, Kota Hidaka, Yuta Miyoshi, Ayami Yoneda, Koyo Nagao, Kitano Masaharu, Takashi Okayasu

    Journal of the Faculty of Agriculture, Kyushu University   63 ( 1 )   139 - 142   2018.2

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  • Development of program library using an open-source hardware for implementation of low-cost greenhouse environmental control system Reviewed

    Ken ichiro Yasuba, Hidehito Kurosaki, Takehiko Hoshi, Takashi Okayasu, Yoshiyuki Tanaka, Tanjuro Goto, Yuichi Yoshida

    Environmental Control in Biology   56 ( 3 )   107 - 112   2018.1

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    DOI: 10.2525/ecb.56.107

  • Sensing technologies for advanced smart agricultural systems Reviewed International journal

    Uchiyama, H., Sakurai, S., Hashimoto, Y., Hanasaki, A., Arita, D., Okayasu, T., Shimada, A., Taniguchi R.

    11th International Conference on Sensing Technology (ICST)   2017.12

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    DOI: 10.1109/ICSensT.2017.8304451

  • An Easy-to-Setup 3D Phenotyping Platform for KOMATSUNA Dataset Reviewed International journal

    Uchiyama, H., Sakurai, S., Mishima, M., Arita, D., Okayasu, T., Shimada, A., Taniguchi, R.

    2017 IEEE International Conference on Computer Vision Workshops (ICCVW)   2017.10

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    DOI: 10.1109/ICCVW.2017.239

  • Measurement accuracy of the area of combine-harvested field sections corresponding to a truckload of grain received at a grain elevator Reviewed

    Hirai Yasumaru, K. Tanaka, T. Nakanishi, T. Shikanai, Eiji Inoue, Takashi Okayasu, Mitsuoka Muneshi

    Engineering in Agriculture, Environment and Food   10 ( 4 )   272 - 281   2017.10

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    DOI: 10.1016/j.eaef.2017.05.001

  • Judging the abnormalities of agricultural machinery by using Mahalanobis' distance Reviewed

    Jung Seob Choe, Kohei Takata, Eiji Inoue, Tae Wook Kim, Mitsuoka Muneshi, Takashi Okayasu, Hirai Yasumaru

    Journal of the Faculty of Agriculture, Kyushu University   62 ( 2 )   469 - 476   2017.9

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  • Sensing and visualization in agriculture with affordable smart devices

    Takashi Okayasu, Andri Prima Nugroho, Daisaku Arita, Takashi Yoshinaga, Yoshiki Hashimoto, Rin ichiro Tachiguchi

    Smart Sensors at the IoT Frontier   299 - 325   2017.5

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    DOI: 10.1007/978-3-319-55345-0_12

  • Water leakage control by using vibratory roller on a dry-seeded rice field in southwestern Japan Reviewed

    Koichiro Fukami, Toshifumi Mukunoki, Keiko Nakano, Naoki Matsuo, Takashi Okayasu

    Soil and Tillage Research   166   138 - 146   2017.3

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    DOI: 10.1016/j.still.2016.09.011

  • Chemical Free Vegetable Cultivation and Outcomes in Winter Season in Bangladesh A case study on BOP farmers in five districts

    Mansur Ahmed, Akinori Ozaki, Dipok K. Choudhury, Kazuo Ogata, Shoichi Ito, Ikuo Miyajima, Ashir Ahmed, Takashi Okayasu, Amin Nayeen Al

    Journal of the Faculty of Agriculture, Kyushu University   62 ( 1 )   255 - 262   2017.2

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  • Development of a parallel hybrid system for agricultural tractors Reviewed

    Dae Hyun Lee, Yong Joo Kim, Chang Hyun Choi, Sun Ok Chung, Eiji Inoue, Takashi Okayasu

    Journal of the Faculty of Agriculture, Kyushu University   62 ( 1 )   137 - 144   2017.2

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  • Chemical free vegetable cultivation and outcomes in winter season in Bangladesh A case study on BOP farmers in five districts Reviewed

    Mansur Ahmed, Akinori Ozaki, Dipok K. Choudhury, Kazuo Ogata, Shoichi Ito, Ikuo Miyajima, Ashir Uddin Ahmed, Takashi Okayasu, Nayeen Aamin

    Journal of the Faculty of Agriculture, Kyushu University   62 ( 1 )   255 - 262   2017.2

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  • Application of the constant soil temperature layer for energy-saving control in the local environment of greenhouse crops II. Application to strawberry cultivation during the winter season Reviewed

    Yuta Miyoshi, Kota Hidaka, Takashi Okayasu, Daisuke Yasutake, Kitano Masaharu

    Environmental Control in Biology   55 ( 1 )   37 - 40   2017.1

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    DOI: 10.2525/ecb.55.37

  • Effects of local CO2 enrichment on strawberry cultivation during the winter season Reviewed

    Yuta Miyoshi, Kota Hidaka, Takashi Okayasu, Daisuke Yasutake, Kitano Masaharu

    Environmental Control in Biology   55 ( 4 )   165 - 170   2017.1

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    DOI: 10.2525/ecb.55.165

  • Dynamics of photosynthate loading in strawberries affected by light condition on source leaves Reviewed

    Yuta Miyoshi, Tomomi Hidaka, Kota Hidaka, Takashi Okayasu, Daisuke Yasutake, Kitano Masaharu

    Environmental Control in Biology   55 ( 1 )   53 - 58   2017.1

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    DOI: 10.2525/ecb.55.53

  • Parameter sensitivity for tractor lateral stability against Phase I overturn on random road surfaces Reviewed

    Zhen Li, Mitsuoka Muneshi, Eiji Inoue, Takashi Okayasu, Hirai Yasumaru, Zhongxiang Zhu

    Biosystems Engineering   150   10 - 23   2016.10

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    DOI: 10.1016/j.biosystemseng.2016.07.004

  • Sensor comparison for grass growth estimation Reviewed

    Md Shaha Nur Kabir, Sun Ok Chung, Yong Joo Kim, Geung Joo Lee, Seung Hwa Yu, Kyeong Hwan Lee, Takashi Okayasu, Eiji Inoue

    Journal of the Faculty of Agriculture, Kyushu University   61 ( 2 )   367 - 374   2016.9

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  • Transport performance simulation of separating system for self-propelled peanut harvester using edem software Reviewed

    Je Lim, Myoung Ho Kim, Seong Min Kim, Jung Seob Choe, Eiji Inoue, Takashi Okayasu, Dae Cheol Kim

    Journal of the Faculty of Agriculture, Kyushu University   61 ( 2 )   361 - 365   2016.9

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  • Accuracy of rice straw weight and rough grain yield predicted by a modified crop growth model based on sucros1 International journal

    Iwasaka, S., Hirai, Y., Yamakawa, T., Inoue, E., Okayasu, T., Mitsuoka, M.

    Proceedings of International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB) 2016   2016.5

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  • Correlation anomaly detection by using time series data of agricultural machinery International journal

    Mitsuoka, M., Takata, K., Inoue, E., Okayasu, T., Hirai, Y.

    Proceedings of International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB) 2016   2016.5

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  • Investigation of the mechanical threshing characteristics of sorghum International journal

    Momanyi J. Simanto, M. J., Mitsuoka, M., Inoue, E., Okayasu, T., Hirai, Y.

    Proceedings of International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB) 2016   2016.5

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  • Evaluation of a method to estimate light-intercepting characteristics of a rice hill using a RGB-Depth sensor International journal

    Hirai, T., Nakamura, Y., Sakai, A., Okayasu, T., Inoue, E., Mitsuoka, M.

    Proceedings of International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB) 2016   2016.5

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  • Accuracy evaluation of a method to compute the area of combine-harvested field sections International journal

    Ogata, M., Hirai, Y., Nakanishi, T., Shikanai, T., Inoue, E., Okayasu, T., Mitsuoka, M.

    Proceedings of International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB) 2016   2016.5

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  • Evaluation of Tractor Fuel Efficiency using Dynamometer and Baler Operation Cycle

    2016.2

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    Repository Public URL: http://hdl.handle.net/2324/1564100

  • Poor farmer, entrepreneurs and ICT relation in production & marketing of quality vegetables in Bangladesh Reviewed

    Mansur Ahmed, Akinori Ozaki, Kazuo Ogata, Shoichi Ito, Ikuo Miyajima, Ashir Uddin Ahmed, Takashi Okayasu, Dipok K. Choudhury, Nayeen Al Amin

    Journal of the Faculty of Agriculture, Kyushu University   61 ( 1 )   241 - 250   2016.2

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  • Modeling agricultural tractor motion on sloping ground considering longitu-dinal and lateral gradients Reviewed

    Zhen Li, Mitsuoka Muneshi, Eiji Inoue, Takashi Okayasu, Hirai Yasumaru

    Journal of the Faculty of Agriculture, Kyushu University   61 ( 1 )   147 - 152   2016.2

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  • Evaluation of tractor fuel efficiency using dynamometer and baler operation cycle Reviewed

    Dae Hyun Lee, Chang Hyun Choi, Sun Ok Chung, Yong Joo Kim, Eiji Inoue, Takashi Okayasu

    Journal of the Faculty of Agriculture, Kyushu University   61 ( 1 )   173 - 182   2016.2

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  • Effect of geometrie configuration on tractor stability characteristics Reviewed

    Zhen Li, Mitsuoka Muneshi, Eiji Inoue, Takashi Okayasu, Hirai Yasumaru

    Journal of the Faculty of Agriculture, Kyushu University   61 ( 1 )   153 - 156   2016.2

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  • Design parameter optimization for tillage blade of crank-type rotavators considering strength and weight Reviewed

    Ju Seok Nam, Sang Gon Moon, Sang Hun Park, Eiji Inoue, Takashi Okayasu, Dae Cheol Kim

    Journal of the Faculty of Agriculture, Kyushu University   61 ( 1 )   165 - 172   2016.2

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  • Modeling Agricultural Tractor Motion on Sloping Ground Considering Longitu–dinal and Lateral Gradients

    九州大学大学院農学研究院紀要   2016.2

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  • Effect of Geometric Configuration on Tractor Stability Characteristics

    Zhen LI, Muneshi MITSUOKA, Eiji INOUE, Takashi OKAYASU, and Yasumaru HIRAI

    2016.2

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    Repository Public URL: http://hdl.handle.net/2324/1564097

  • Design Parameter Optimization for Tillage Blade of Crank–type Rotavators considering Strength and Weight

    Ju–Seok NAM, Sang–Gon MOON, Sang–Hun PARK, Eiji INOUE, Takashi OKAYASU and Dae–Cheol KIM

    九州大学大学院農学研究院紀要   2016.2

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    Repository Public URL: http://hdl.handle.net/2324/1564099

  • Development of stability indicators for dynamic Phase I overturn of conventional farm tractors with front axle pivot Reviewed International journal

    Li, Z., Mitsuoka, M., Inoue, E., Okayasu, T., Hirai, Y.

    Biosystems Engineering   2015.6

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  • Development of stability indicators for dynamic Phase I overturn of conventional farm tractors with front axle pivot Reviewed

    Zhen Li, Mitsuoka Muneshi, Eiji Inoue, Takashi Okayasu, Hirai Yasumaru

    Biosystems Engineering   134   55 - 67   2015.6

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    DOI: 10.1016/j.biosystemseng.2015.03.016

  • Analysis of the Separating Performance of Peanut Harvester Sorting System

    Bong-Jin KIM, Young-Sun Kang, Hong-Gon KIM , Eiji INOUE ,Takashi OKAYASU, Dae-Cheol KIM

    Journal of the Faculty of Agriculture Kyushu University   2015.2

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    Repository Public URL: http://hdl.handle.net/2324/1526311

  • Analysis of the separating performance of peanut harvester sorting system Reviewed

    Bong Jin Kim, Young Sun Kang, Hong Gon Kim, Eiji Inoue, Takashi Okayasu, Dae Cheol Kim

    Journal of the Faculty of Agriculture, Kyushu University   60 ( 1 )   209 - 214   2015.1

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  • Production of rice for whole crop silage using manure in Itoshima Region, Fukuoka prefecture Reviewed

    Borin Khem, Hirai Yasumaru, Takeo Yamakawa, Yuki Mori, Eiji Inoue, Takashi Okayasu, Mitsuoka Muneshi

    Journal of the Faculty of Agriculture, Kyushu University   60 ( 1 )   65 - 71   2015.1

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  • Prediction of tractor sideslipping behavior using a quasi-static model Reviewed

    Zhen Li, Mitsuoka Muneshi, Eiji Inoue, Takashi Okayasu, Hirai Yasumaru, Zhongxiang Zhu

    Journal of the Faculty of Agriculture, Kyushu University   60 ( 1 )   215 - 218   2015.1

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  • Modification of a tractor dynamic model considering the rotatable front end Reviewed

    Zhen Li, Mitsuoka Muneshi, Eiji Inoue, Takashi Okayasu, Hirai Yasumaru, Zhongxiang Zhu

    Journal of the Faculty of Agriculture, Kyushu University   60 ( 1 )   219 - 224   2015.1

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  • Performance of measuring vibration of MEMS sensor Reviewed

    Jung Seob Choe, Eiji Inoue, Muneshi Mitusoka, Takashi Okayasu, Hirai Yasumaru

    Journal of the Faculty of Agriculture, Kyushu University   59 ( 2 )   351 - 358   2014.8

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  • Abnormal detection of agricultural machineries using multi-time series International journal

    Muneshi Mitsuoka, Yuki Kimoto, Kohei Takata, Eiji Inoue, Takashi Okayasu, Yasumaru Hirai

    Proceedings of International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB) 2014   2014.5

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  • Evaluation of measurement accuracy of the harvest area corresponding to each shipment to country elevator using GPS and QZSS International journal

    Yasumaru Hirai, Kodai Tanaka, Tsuneo Nakanishi, Takeshi Shikanai, Eiji Inoue, Akira Fukuda, Takashi Okayasu, Muneshi Mitsuoka

    Proceedings of International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB) 2014   2014.5

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  • Study on noise reduction in cabin of agricultural machineries using active noise control method International journal

    Satoru Umeno, Eiji Inoue, Muneshi Mitsuoka, Takashi Okayasu, Yasumaru Hirai

    Proceedings of International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB) 2014   2014.5

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  • 植物面積指数および葉緑素計値に基づく複数の水稲生育指標の推定法, Reviewed

    平井康丸・西本琢人・猿田恵輔・田中恒大・井上 英二・岡安 崇史・光岡 宗司

    システム農学   2014.4

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  • 水稲の収量・品質決定要因解析手法としての回帰木の適用 Reviewed

    田中恒大・平井康丸・猿田恵輔・井上 英二・岡安 崇史・光岡 宗司

    日作紀   2014.4

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  • Shape model of grain and straw using coupling elements and flight simulation of threshing unit of combine by discrete element method Reviewed International journal

    Yuko Ueka, Masami Matsui, Eiji Inoue, Muneshi Mitsuoka, Takashi Okayasu

    Engineering in Agriculture Environment and Food   2014.2

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  • GPS記録計を用いた精玄米収量計測法

    田中恒大・平井康丸・鹿内健志・井上 英二・岡安 崇史・光岡 宗司

    九大農学芸誌   2014.2

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  • Application of a regression tree to analysis of rice yield and quality determinants Reviewed

    Kodai Tanaka, Hirai Yasumaru, Keisuke Saruta, Eiji Inoue, Takashi Okayasu, Mitsuoka Muneshi

    Japanese Journal of Crop Science   83 ( 2 )   143 - 154   2014.1

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    DOI: 10.1626/jcs.83.143

  • 7-1-6 パターン認識を用いた水稲の収量・タンパク質含有率予測モデル(7-1 肥料および施肥法,2014年度東京大会)

    日本土壌肥料学会講演要旨集   60 ( 0 )   117   2014.1

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    DOI: 10.20710/dohikouen.60.0_117_3

  • Shape model of grain and straw using coupling elements and flight simulation of threshing unit of combine by discrete element method Reviewed

    Yuko Ueka, Masami Matsui, Eiji Inoue, Mitsuoka Muneshi, Takashi Okayasu

    Engineering in Agriculture, Environment and Food   7 ( 1 )   34 - 39   2014.1

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    DOI: 10.1016/j.eaef.2013.12.006

  • Lateral slope effect on tipping behavior of a tractor encountering an obstacle (model development) Reviewed

    Zhen Li, Mitsuoka Muneshi, Eiji Inoue, Takashi Okayasu, Hirai Yasumaru

    Journal of the Faculty of Agriculture, Kyushu University   59 ( 2 )   345 - 349   2014.1

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  • Elastoplastic deformation behavior for ballast under monotonic and cyclic loading conditions

    Takashi Okayasu, Takahisa Nakamura, Katsumi Muramoto, Yoshitsugu Momoya

    18th International Conference of the International Society for Terrain-Vehicle Systems, ISTVS 2014 18th International Conference of the ISTVS   2014.1

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  • Dynamic analysis of agricultural wheel tractor driving on uneven surface under the influences of speed and slope angle Reviewed

    Zhen Li, Mitsuoka Muneshi, Eiji Inoue, Takashi Okayasu, Hirai Yasumaru

    Journal of the Faculty of Agriculture, Kyushu University   59 ( 2 )   339 - 343   2014.1

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  • Predictive models for yield and protein content of brown rice using support vector machine Reviewed International journal

    Keisuke Saruta, Yasumaru Hirai, Kodai Tanaka, Eiji Inoue, Takashi OKAYASU, Muneshi Mitsuoka

    Computers and Electronics in Agriculture   2013.11

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    DOI: http://dx.doi.org/10.1016/j.compag.2013.09.003

  • 部分浅耕播種法がコムギの品質・収量および播種の省力化に及ぼす影響 Reviewed

    川村富輝,中野恵子,光岡宗司,井上英二,岡安崇史

    農作業研究   48 ( 3 )   111 - 120   2013.9

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  • Ergonomic study for comfort operating the pedals of the agricultural tractors Reviewed

    Hyuck Joo Kim, Myoung Ho Kim, Eiji Inoue, Takashi Okayasu, Dae Cheol Kim

    Journal of the Faculty of Agriculture, Kyushu University   58 ( 2 )   329 - 338   2013.9

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  • Analysis of the tillage and power consumption characteristics of a crank-type rotavator according to the tillage blade shape Reviewed

    Dae Chun Kim, Ju Seok Nam, Myoung Ho Kim, Jung Seob Choe, Eiji Inoue, Takashi Okayasu, Dae Cheol Kim

    Journal of the Faculty of Agriculture, Kyushu University   58 ( 2 )   319 - 328   2013.9

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  • Application of the constant soil temperature layer for energy-saving control of the local environment of greenhouse crops. I. Local control of the ambient environment of strawberry Reviewed

    Yuta Miyoshi, Kota Hidaka, Takashi Okayasu, Osamu Hirano, Daisuke Yasutake, Kitano Masaharu

    Environmental Control in Biology   51 ( 2 )   89 - 94   2013.8

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    DOI: 10.2525/ecb.51.89

  • 転換畑における部分浅耕播種法がダイズの生育・収量に及ぼす影響 Reviewed

    川村富輝,小田原孝治,光岡宗司,井上英二,岡安崇史

    農作業研究   48 ( 2 )   49 - 59   2013.6

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  • Application of the Constant Soil Temperature Layer for Energy-saving Control of the Local Environment of Greenhouse Crops. I. Local Control of the Ambient Environment of Strawberry Reviewed

    Yuta MIYOSHI, Kota HIDAKA, Takashi OKAYASU, Osamu HIRANO, Daisuke YASUTAKE, KITANO Masaharu

    Environ. Control Biol.   51 ( 2 )   89 - 94   2013.5

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  • Approach to Local Enviroment Control for Stable Production of Stawberry International journal

    Miyoshi, Y., Hidaka, K., Okayasu, T., Hirano, O., Yasutake, D., Kitano, M.

    Proc. IFAC2013 Bio Robotics Conf.   2013.3

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  • Modeling of soil displacement and soil strain distribution under a traveling wheel Reviewed International journal

    Saengprachatanarug, K., Ueno, M., Taira, E., Takashi OKAYASU

    Journal of Terramechanics   50 ( 1 )   5 - 16   2013.2

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    DOI: http://dx.doi.org/10.1016/j.jterra.2012.06.001

  • Sterilization in hydroponic recycling system using visible light-reactive titanium dioxide photocatalysts Reviewed

    Sung Won Chung, Yu Shin Ha, Kim Yung Lee, Jong Soon Kim, Jong Min Park, Soon Goo Kwon, Won Sik Choi, Soon Hong Kwon, Muneshi Mitusoka, Eiji Inoue, Takashi Okayasu

    Journal of the Faculty of Agriculture, Kyushu University   58 ( 1 )   93 - 98   2013.2

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  • Statistical analysis of threshing characteristics of Impact-type rice plant threshing device Reviewed

    Jung Seob Choe, Eiji Inoue, Muneshi Mitusoka, Takashi Okayasu, Hirai Yasumaru

    Journal of the Faculty of Agriculture, Kyushu University   58 ( 1 )   69 - 78   2013.2

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  • Measuring inclination angle of Semi-crawler tractors using MEMS sensor Reviewed

    Jung Seob Choe, Muneshi Mitusoka, Eiji Inoue, Takashi Okayasu, Hirai Yasumaru, K. I.M. Tae Wook, Soon Goo Kwon, Jong Min Park

    Journal of the Faculty of Agriculture, Kyushu University   58 ( 1 )   79 - 85   2013.2

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  • Development of Post-harvest bulk handling system of onions (I) - Characteristics of friction and airflow resistance Reviewed

    Jong Min Park, Ghi Seok Kim, Soon Hong Kwon, Sung Won Chung, Soon Goo Kwon, Won Sik Choi, Jong Soon Kim, Muneshi Mitusoka, Eiji Inoue, Takashi Okayasu

    Journal of the Faculty of Agriculture, Kyushu University   58 ( 1 )   87 - 92   2013.2

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  • Approach to local environment control for stable production of strawberry Reviewed

    Yuta Miyoshi, Kota Hidaka, Takashi Okayasu, Osamu Hirano, Daisuke Yasutake, Kitano Masaharu

    IFAC-PapersOnLine   1 ( PART 1 )   2013.1

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  • 変化点分析法を用いた圃場環境情報の特徴量抽出とその妥当性の検証 Reviewed

    Takashi Okayasu, Prima Nugroho Andri, 尾崎 彰則, Mitsuoka Muneshi, Teruaki Nanseki, Eiji Inoue, Hirai Yasumaru

    農業情報研究   22 ( 3 )   174 - 182   2013.1

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    Environmental data are measured and collected by simple monitoring devices installed in agricultural fields. These data are very important not only for understanding and predicting factors such as the growth of crops and the occurrence of pests and diseases, but also for optimizing agricultural production processes such as planting, irrigation, fertilization, pest control, and harvesting. However, the amount of data stored in agricultural information databases is rapidly increasing owing to an increase in the number of monitoring devices and sensors installed in such devices. To properly detect characteristic values from such a vast amount of data, it is necessary to develop new numerical technologies and methods. We developed a simple field monitoring system to establish field observations, production optimization, and information sharing between farmers. We also developed and applied a change point analysis program based on the singular spectrum transformation to conduct change point analyses of the field environmental data measured by the monitoring devices. The calculated change point values were then verified through a comparison with farm data recorded by a corporative farmer in the feasibility study.

    DOI: 10.3173/air.22.174

  • Predictive models for yield and protein content of brown rice using support vector machine Reviewed

    Keisuke Saruta, Hirai Yasumaru, Kodai Tanaka, Eiji Inoue, Takashi Okayasu, Mitsuoka Muneshi

    Computers and Electronics in Agriculture   99   93 - 100   2013.1

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    DOI: 10.1016/j.compag.2013.09.003

  • Modeling of soil displacement and soil strain distribution under a traveling wheel Reviewed

    Khwantri Saengprachatanarug, Masami Ueno, Eizo Taira, Takashi Okayasu

    Journal of Terramechanics   50 ( 1 )   5 - 16   2013.1

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    DOI: 10.1016/j.jterra.2012.06.001

  • Evaluation of the effects of maturity acceleration of rice straw and nitrogen fertilizer on application of aerobically fermented liquid fertilizer in rice production Reviewed

    Yasumaru Hira, Keisuke Saruta, Hirohiko Shuto, Takeo Yamakawa, Toshihiro Mochizuki, Eiji Inoue, Takashi Okayasu, Mitsuoka Muneshi

    Japanese Journal of Crop Science   82 ( 4 )   325 - 336   2013.1

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    DOI: 10.1626/jcs.82.325

  • Development of actuation framework for agricultural informatization supporting system Reviewed

    Andri Prima Nugroho, Takashi Okayasu, Eiji Inoue, Hirai Yasumaru, Mitsuoka Muneshi

    IFAC-PapersOnLine   1 ( PART 1 )   2013.1

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  • Evaluation of a multiple linear regression model for the prediction of panicle number in rice Reviewed

    Yusaku Yamauchi, Hirai Yasumaru, Keisuke Saruta, Takeo Yamakawa, Eiji Inoue, Takashi Okayasu, Mitsuoka Muneshi

    Journal of the Faculty of Agriculture, Kyushu University   57 ( 2 )   421 - 426   2012.9

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  • Monitoring of Hydraulic Gradient in Agricultural Land-use using Grid Wireless Sensor Network Reviewed International journal

    Soetiarso, L. Goenadi, S., Andri P.N., Okayasu, T.

    Proceeding on International Workshop on ICT in Geo-Engineering   2012.5

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  • Finite Element Analysis of Corrugated Board under Bending Stress

    Jongmin PARK, Ghiseok KIM, Soonhong KWON, Sungwon CHUNG, Soongoo KWON, Wonsick CHOI, Muneshi Mitsuoka, Eiji INOUE, Takashi OKYASU, Jungseob CHOE.

    Journal of the Faculty of Agriculture Kyushu University   2012.2

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    Repository Public URL: http://hdl.handle.net/2324/22070

  • Finite element analysis of corrugated board under bending stress Reviewed

    Jongmin Park, Ghiseok Kim, Soonhong Kwon, Sungwon Chung, Soongoo Kwon, Wonsick Choi, Mitsuoka Muneshi, Eiji Inoue, Takashi Okayasu, Jungseob Choe

    Journal of the Faculty of Agriculture, Kyushu University   57 ( 1 )   181 - 188   2012.2

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  • Collision vibration characteristics with interspace in knife driving system of combine harvester Reviewed

    Takashi Fukushima, Eiji Inoue, Mitsuoka Muneshi, Takashi Okayasu, Kunio Sato

    Engineering in Agriculture, Environment and Food   5 ( 3 )   115 - 120   2012.1

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    DOI: 10.1016/S1881-8366(12)80024-3

  • Study on knowledge management platform about the field of agricultural infomatization

    Eiji Aoki, Ken Kudo, Akira Fukuda, Tsuneo Nakanishi, Shigeaki Tagashira, Takashi Okayasu, Naoyuki Tsuruda, Satoru Yamasaki, Yasuhito Imura

    2012 6th International Conference on Complex, Intelligent, and Software Intensive Systems, CISIS 2012 Proceedings - 2012 6th International Conference on Complex, Intelligent, and Software Intensive Systems, CISIS 2012   705 - 710   2012.1

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    DOI: 10.1109/CISIS.2012.149

  • Turbulent flow characteristics of the cleaning wind in combine harvester Reviewed

    Yuko Ueka, Masami Matsui, Eiji Inoue, Ken Mori, Takashi Okayasu, Mitsuoka Muneshi

    Engineering in Agriculture, Environment and Food   5 ( 3 )   102 - 106   2012.1

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    DOI: 10.1016/S1881-8366(12)80022-X

  • Characteristics of Vibration Transmissibility for Corrugated Paperboard

    Jongmin PARK, Ghiseok KIM, Hakjin KIM, Soongoo KWON, Muneshi Mitsuoka, Eiji INOUE, Takashi OKYASU, Jungseob CHOE.

    Journal of the Faculty of Agriculture Kyushu University   2011.11

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    Repository Public URL: http://hdl.handle.net/2324/20328

  • Prediction of the vibration characteristics of half-track tractor considering a three-dimensional dynamic model Reviewed

    M. A. Rabbani, T. Tsujimoto, Mitsuoka Muneshi, Eiji Inoue, Takashi Okayasu

    Biosystems Engineering   110 ( 2 )   178 - 188   2011.10

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    DOI: 10.1016/j.biosystemseng.2011.07.013

  • Prediction of the vibration characteristics of half-traced tractor condering a three-dimensional dynamic model Reviewed International journal

    M.A. Rabbani, T. Tsujimoto, M. Mitsuoka, E. Inoue, T. Okayasu

    Biosystems Enginering   2011.9

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  • Characteristics of vibration transmissibility for corrugated paperboard Reviewed

    Jongmin Park, Ghiseok Kim, Hakjin Kim, Soongoo Kwon, Muneshi Mitusoka, Eiji Inoue, Takashi Okayasu

    Journal of the Faculty of Agriculture, Kyushu University   56 ( 2 )   327 - 333   2011.9

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  • 転輪とゴム履帯との非線形作用特性を考慮したセミクローラ式トラクタの力学モデル Reviewed

    光岡宗司, 武岡達, 辻本規, 井上英二, 岡安崇史, 崔重燮

    農業機械学会九州支部誌   2011.8

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  • Feasibility study on field monitoring and work recording system in agriculture

    Takashi Okayasu, Hiromichi Yoshida, Tomohiro Miyazaki, Teruaki Nanseki, Mitsuoka Muneshi, Eiji Inoue

    American Society of Agricultural and Biological Engineers Annual International Meeting 2011 American Society of Agricultural and Biological Engineers Annual International Meeting 2011, ASABE 2011   2   1652 - 1662   2011.3

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  • Prediction of compaction behavior of heavy clayey soil beneath an off-road vehicle

    Tomohiro Miyazaki, Takashi Okayasu, Eiji Inoue

    American Society of Agricultural and Biological Engineers Annual International Meeting 2011 American Society of Agricultural and Biological Engineers Annual International Meeting 2011, ASABE 2011   4   2666 - 2675   2011.3

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  • Modeling of soil displacement and soil strain distribution under the traveling wheel

    Khwantri Saengprachatanarug, Masami Ueno, Eizo Taira, Takashi Okayasu

    17th International Conference of the International Society for Terrain Vehicle Systems 2011, ISTVS 2011 17th International Conference of the International Society for Terrain Vehicle Systems 2011, ISTVS 2011   12 - 24   2011.3

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  • Simulation for Vertical Dynamic Loading Forces on Track Rollers of the Half-tracked Tractor Based on Nonlinear Voigt's Model, (EAEF) ,Vol.3 ,(4) ,119-126,2010.11. Reviewed International journal

    Engineering in Agriculture Environment and Food   2010.10

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  • Fluid Analysis of Cleaning Wind in Combine Harvester International journal

    Ueka, Y., Matsui, M., Inoue, E., Mori, K., Okayasu, T.

    Proc. 5th Int. Symp. Mach. Mech. Agr. Biosys. Engng. (ISMAB)   2010.4

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  • Investigation of Chilling Sensitivity and Effect of Instant Water Soaking Treatment on the Quality of Amaranth Leaves International journal

    Nakano, K., Takahashi, C., Oba, S., Shimazu, T., Okayasu, T.

    Proc. 5th Int. Symp. Mach. Mech. Agr. Biosys. Engng. (ISMAB)   2010.4

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  • Three Dimension Model of Vibration Characteristics of the Half-tracked Tractor International journal

    Mitsuoka, M., Tsuzimoto, T., Ashik, R.M., Inoue , E., Fukushima, T., Okayasu, T.

    Proc. 5th Int. Symp. Mach. Mech. Agr. Biosys. Engng. (ISMAB)   2010.4

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  • Dynamic Model of Half-Tracked Tractor Considering the Nonlinear Voigt Model International journal

    Ashik, R.M., Mitsuoka, M., Takeoka, S., Inoue, E., Fukushima, T., Okayasu T.

    Proc. 5th Int. Symp. Mach. Mech. Agr. Biosys. Engng. (ISMAB)   2010.4

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  • Study on Durability Improvement of the Shallow Tillage Seeding Machine with Cutting Small Ditches - Measurement of an acting force on the bearing part of the side disk to cut small ditch International journal

    Fukami, K. Watanabe, T., Sasaki, Y., Tanio, M., Tsutiya, S., Tasaka, K., Okayasu, T., Inoue, E., Ohba, H., Kamitsuzi, N.

    Proc. 5th Int. Symp. Mach. Mech. Agr. Biosys. Engng. (ISMAB)   2010.4

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  • Simulation for vertical dynamic loading forces on track rollers of the half-tracked tractor based on nonlinear Voigt's model Reviewed

    M. A. Rabbani, Susumu Takeoka, Mitsuoka Muneshi, Eiji Inoue, Takeshi Fukushima, Takashi Okayasu

    Engineering in Agriculture, Environment and Food   3 ( 4 )   119 - 126   2010.1

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    DOI: 10.1016/S1881-8366(10)80003-5

  • Study on Durability Improvement of the Shallow Tillage Seeding Machine with Cutting Small Ditches International journal

    Fukami, K., Watanabe, T., Tanio, M., Masuda, K., Okayasu, T. Inoue, E., Kamitsuji, N., Ohba, H.

    ISTRO2009, Izmir   2009.6

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  • Dynamic model of an agricultural rubber crawler vehicle with nonlinear spring (part 1) -Investigation of the nonlinear interaction between a track roller and an agricultural rubber crawler Reviewed

    Mistsuoka, M., Inaba, S., Inoue, E., Fukushima, T., Okayasu, T., Mori, K.

    J. JSAM   2008.9

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  • Prediction and evaluation of vibration characteristics of an agricultural rubber crawler vehicle equipped with movable track rollers Reviewed

    Mistsuoka, M., Inaba, S., Inoue, E., Fukushima, T., Hara, S., Okayasu, T., Mori, K.

    J. JSAM   2008.9

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  • 乱流モデルを導入した選別風の数値流体解析 Reviewed

    松浦大海・古野裕子・松井正実・井上英二・森 健・岡安崇史

    農業機械学会九州支部誌   2008.8

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  • Analysis of Winnorw Mechanism on the Basis of Particle-Particle/Particle-Airflow Interaction (Part 1)-Dispersion Characteristics of Paddy Grains/Straws- Reviewed

    Furuno, Y., Matsui, M., Inoue, E., Mori, K., Okayasu, T. Fukata, R.

    J. Jpn. Soc. Agr. Mach.   2008.1

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  • Finite element analysis of particle assembly-water coupled frictional contact problem Reviewed

    S. Ozaki, K. Hashiguchi, Takashi Okayasu, D. H. Chen

    CMES - Computer Modeling in Engineering and Sciences   18 ( 2 )   101 - 119   2007.4

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  • Overstress model with tangential-viscoplastic strain rate by incorporation of overstress tensor Reviewed

    Koichi Hashiguchi, Takashi Okayasu, Toshiyuki Ozaki

    Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A   73 ( 1 )   151 - 158   2007.1

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  • Deformation behavior of Shirasu soil by the extended subloading surface model Reviewed

    M. Hira, K. Hashiguchi, M. Ueno, Takashi Okayasu

    Lowland Technology International   8 ( 1 )   37 - 46   2006.6

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  • セミクローラ式トラクタの転動抵抗を考慮した振動解析モデルとその評価 Reviewed

    福島崇志,岡田淳,井上英二,光岡宗司,稲葉繁樹,岡安崇史

    農業機械学会誌   2006.1

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  • Mathematical models for soil displacement under a rigid wheel Reviewed

    Koichiro Fukami, Masami Ueno, Koichi Hashiguchi, Takashi Okayasu

    Journal of Terramechanics   43 ( 3 SPEC. ISS. )   287 - 301   2006.1

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    DOI: 10.1016/j.jterra.2005.05.005

  • Extended tangential-subloading surface model for general loading behavior of soils Application to nonproportional loadings Reviewed

    Hideki Setouchi, Koichi Hashiguchi, Takeshi Shikanai, Takashi Okayasu

    Soils and Foundations   46 ( 4 )   449 - 463   2006.1

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    DOI: 10.3208/sandf.46.449

  • Extended tangential-subloading surface model for general loading behavior of soils: application to nonproportional loadings Reviewed International journal

    Setouchi, H., Hashiguchi, K., Shikanai, T., Okayasu, T.

    Soils and Foundations.   2006.1

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  • 選別風を受ける藁の飛散範囲シミュレーション. Reviewed

    古野裕子,松井正実,井上英二,森健,岡安崇史

    農業機械学会誌   2006.1

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  • Vibration Characteristics and Modeling of Knife Driving System of Combine Harvester(Part1)-Frequency Resolution of Time Series by Wavelet Analysis- Reviewed

    Fukushima, T., Inoue, E., Mitsuoka, M., Matsui, M., Okayasu, T.

    J. Jpn. Soc. Agr. Mach.   2006.1

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  • Vibration Characteristics and Modeling of Knife Driving System of Combine Harvester(Part2)-Recurrence Plots and Trajectory Considering Frequency Components- Reviewed

    Fukushima, T., Inoue, E., Mitsuoka, M., Matsui, M., Okayasu, T.

    J. Jpn. Soc. Agr. Mach.   2006.1

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  • Vibration Characteristics and Modeling of Knife Driving System of Combine Harvester(Part3)-A Dynamic Model of the Knife Driving System- Reviewed

    Fukushima, T., Inoue, E., Mitsuoka, M., Matsui, M., Okayasu, T.

    J. Jpn. Soc. Agr. Mach.   2006.1

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  • Rate-dependent inelastic constitutive equation The extension of elastoplasticity Reviewed

    K. Hashiguchi, Takashi Okayasu, K. Saitoh

    International Journal of Plasticity   21 ( 3 )   463 - 491   2005.3

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    DOI: 10.1016/j.ijplas.2004.04.001

  • Unconventional friction theory based on the subloading surface concept Reviewed

    K. Hashiguchi, S. Ozaki, Takashi Okayasu

    International Journal of Solids and Structures   42 ( 5-6 )   1705 - 1727   2005.3

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    DOI: 10.1016/j.ijsolstr.2004.08.006

  • Rate-dependent inelastic constitutive equation The extension of elastoplasticity Reviewed

    K. Hashiguchi, Takashi Okayasu, K. Saitoh

    International Journal of Plasticity   21 ( 3 )   463 - 491   2005.3

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    DOI: 10.1016/j.ijplas.2004.04.001

  • Unconventional friction theory based on the subloading surface concept Reviewed

    K. Hashiguchi, S. Ozaki, Takashi Okayasu

    International Journal of Solids and Structures   42 ( 5-6 )   1705 - 1727   2005.3

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    DOI: 10.1016/j.ijsolstr.2004.08.006

  • Rate-dependent inelastic constitutive equation The extension of elastoplasticity Reviewed

    K. Hashiguchi, Takashi Okayasu, K. Saitoh

    International Journal of Plasticity   21 ( 3 )   463 - 491   2005.3

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    DOI: 10.1016/j.ijplas.2004.04.001

  • Unconventional friction theory based on the subloading surface concept Reviewed

    K. Hashiguchi, S. Ozaki, Takashi Okayasu

    International Journal of Solids and Structures   42 ( 5-6 )   1705 - 1727   2005.3

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    DOI: 10.1016/j.ijsolstr.2004.08.006

  • Unconventional friction theory based on the subloading surface concept Reviewed International journal

    Hashiguchi, K., Ozaki, S. and Okayasu, T.

    Int. J. Solids Struct.   2005.1

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  • Deformation behavior analysis in tunnel excavation by elastoplastic finite element method based on subloading surface model International journal

    Ozaki, T., Okayasu T., Hashiguchi, K. , Yajima, D.

    2005.1

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  • Finite element analyses of frictional contact problems by the subloading-friction model Reviewed

    Shingo Ozaki, Koichi Hashiguchi, Takashi Okayasu, Naoki Hotta

    Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A   70 ( 7 )   995 - 1002   2004.7

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  • Finite element analyses of frictional contact problems by the subloading-friction model Reviewed

    Shingo Ozaki, Koichi Hashiguchi, Takashi Okayasu, Naoki Hotta

    Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A   70 ( 7 )   995 - 1002   2004.7

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  • Finite element analyses of frictional contact problems by the subloading-friction model Reviewed

    Shingo Ozaki, Koichi Hashiguchi, Takashi Okayasu, Naoki Hotta

    Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A   70 ( 7 )   995 - 1002   2004.7

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  • 下負荷面モデルによる繰返し円形応力負荷を受ける砂の変形挙動の予測および接線応力速度の効果 Reviewed

    瀬戸内秀規,橋口公一,鹿内健志,岡安崇史

    応用力学論文集(土木学会)   2004.1

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  • Proposal of a phenome-nological friction model incorporating the subloading surface concept Reviewed International journal

    Hashiguchi, K., Ozaki, S., Okayasu, T. and Zaigo, T.

    Terramechanics   2004.1

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    Proposal of a phenome-nological friction model incorporating the subloading surface concept

  • Friction theory based on the subloading surface concept Reviewed

    Koichi Hashiguchi, Takashi Okayasu, Shingo Ozaki

    Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A   69 ( 2 )   295 - 301   2003.2

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  • Generalized rate-dependent inelastic constitutive equation (application to metals) Reviewed

    Takashi Okayasu, Koichi Hashiguchi

    Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A   69 ( 2 )   288 - 294   2003.2

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  • 砂地盤における剛性車輪下の土の変形(第2報) Reviewed

    深見公一郎,上野正実,橋口公一,岡安崇史

    農業機械学会誌   2003.1

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  • 砂地盤における剛性車輪下の土の変形(第1報) Reviewed

    深見公一郎,上野正実,橋口公一,岡安崇史

    農業機械学会誌   2003.1

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  • Deformation behavior of "Shirasu" and its prediction by the subloading surface model Reviewed

    Mizuki Hira, Koichi Hashiguchi, Takashi Okayasu, Koichi Miwa

    Soils and Foundations   42 ( 5 )   37 - 46   2002.10

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  • Peculiar response of plastically compressive materials with associated and non-associated flow rule International journal

    Tsutsumi, S., Hashiguchi, K., Okayasu, T., Saitoh, K.

    2002.1

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  • Evaluation of typical conventional and unconventional plasticity models for prediction of softening behaviour of soils Reviewed

    K. Hashiguchi, K. Saitoh, Takashi Okayasu, S. Tsutsumi

    Geotechnique   52 ( 8 )   561 - 578   2002.1

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    DOI: 10.1680/geot.2002.52.8.561

  • Dependency of inelastic flow directions on stress rate directions, Plasticity International journal

    Tsutsumi, S., Hashiguchi, K., Sugimoto, M., Takezoe, R., Okayasu, T.

    2002.1

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  • Post-localization analysis by the subloading surface model with tangential stress rate effect Reviewed

    Koichi Hashiguchi, Alexander Y. Protasov, Takashi Okayasu

    Materials Science Research International   7 ( 4 )   265 - 272   2001.12

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  • Post-localization analysis by the subloading surface model with tangential stress rate effect Reviewed International journal

    Hashiguchi, K., Protasov, A. Y. and Okayasu, T.

    Materials Sci. Res. Int.   2001.1

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    Post-localization analysis by the subloading surface model with tangential stress rate effect

  • Subloading surface model with tangential stress rate effect and its application to soils International journal

    Hashiguchi, K., Tsutsumi, S., Okayasu, T., Saitoh, K.

    Bifurcation and Localization Theory Geomech. (IWBL'99)   2001.1

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  • Changes in soil deformation by the frictional property of a wheel with repetition travel International journal

    Fukami, K., Ueno, M., Hashiguchi, K., Okayasu, T.

    Proc. 6th Asia-Pacific Reg. Conf. Terrain Vechicle Systems   2001.1

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  • Effects of traveling speed of a wheel on the soil deformation International journal

    Fukami, K., Ueno, M., Hashiguchi, K., Okayasu, T.

    Proc. 6th Asia-Pacific Reg. Conf. Terrain Vechicle System   2001.1

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  • Mechanical response of the subloading surface model with tangential stretching Reviewed International journal

    Tsutsumi S., Hashiguchi K., Okayasu T., Saitoh K. and Sugimoto M.

    J. App. Mech. (JSCE)   2001.1

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    Mechanical response of the subloading surface model with tangential stretching

  • 接線応力速度を考慮した地盤材料の弾塑性構成式によるせん断帯発生の理論的考察 Reviewed

    橋口公一,堤成一郎,岡安崇史,斎藤公志郎

    農業機械学会誌   2000.1

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  • Time-dependent elastoplastic constitutive equation based on the subloading surface model and its application to soils Reviewed

    Koichi Hashiguchi, Takashi Okayasu

    Soils and Foundations   40 ( 4 )   19 - 36   2000.1

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    DOI: 10.3208/sandf.40.4_19

  • Precise measurement of soil deformation and fluctuation in drawbar pull for steel and rubber-coated rigid wheels Reviewed

    T. Shikanai, K. Hashiguchi, Y. Nohse, M. Ueno, Takashi Okayasu

    Journal of Terramechanics   37 ( 1 )   21 - 39   2000.1

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    DOI: 10.1016/S0022-4898(99)00011-7

  • Shear band analysis in soils by elastoplastic constitutive equation with tangential stress rate effect International journal

    Hashiguchi, K., Tsutsumi, S., Okayasu, T., Saitoh, K.

    Proc. Int. Symp. Plasticity 2000 (Proc. Eighth Int. Symp. Plasticity and Its Current Applications   2000.1

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  • Analysis of soil deformation beneath a wheel in the repetition travel International journal

    Fukami, K., Ueno, M., Hashiguchi, K., Okayasu, T.

    Proc. CIGR2000   2000.1

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  • Fluctuation of the drawbar pull of a wheel due to the inhomogeneous soil deformation International journal

    Fukami, K., Ueno, M., Hashiguchi, K. , Okayasu, T.

    Proc. Int. Conf. Agr. Eng.   2000.1

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  • Precise measurement of soil deformation and fluctuation in drawbar pull for steel and rubber-coated rigid wheels Reviewed International journal

    Shikanai T., Hashiguchi K., Nohse Y., Ueno M., and Okayasu T.

    J. Terramech.   2000.1

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    Precise measurement of soil deformation and fluctuation in drawbar pull for steel and rubber-coated rigid wheels

  • 稲稈の周波数応答特性に関する理論的考察 Reviewed

    井上英二,平井康丸,橋口公一,岡安崇史

    農業機械学会誌   2000.1

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  • 接線応力速度を考慮した弾塑性構成式の提案および地盤材料への適用 Reviewed

    橋口公一,堤成一郎,岡安崇史,斎藤公志郎

    農業機械学会誌   2000.1

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  • 砂地盤上における剛性車輪の走行性高精度予測モデル Reviewed

    上野正実,大嶺政朗,鹿内健志, 橋口公一,岡安崇史

    農業機械学会誌   1999.1

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  • 稲稈の力学的特性に関する一考察 Reviewed

    井上英二,金暎根,橋口公一,岡安崇史,鹿島潤

    農業機械学会誌   1998.1

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  • Time-dependent elastoplastic constitutive model Reviewed

    Koichi Hashiguchi, Xianan Wu, Takashi Okayasu, Seiichiro Tsutsumi

    Metals and Materials International   4 ( 3 )   345 - 349   1998.1

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  • Waveform analysis of drawbarpull of a rigid wheel by FFT International journal

    Ueno, M., Fukami, K., Shikanai, T., Hashiguchi, K., Okayasu, T.

    Proc. 5th Asia-Pacific Reg. Conf. Terrain Vechicle Systems   1998.1

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  • Precise prediction of the traveling performance for a rigid wheel International journal

    Ueno, M., Oomine, M., Shikanai, T., Hashiguchi, K., Okayasu, T.

    Proc. 5th Asia-Pacific Reg. Conf. Terrain Vechicle Systems   1998.1

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  • The Extended Elastoplastic Constitutive Equation with Tangential Stress Rate Effect Reviewed

    Koichi Hashiguchi, Takashi Okayasu, Seiichiro Tsutsumi

    Journal of the Faculty of Agriculture, Kyushu University   42 ( 1-2 )   225 - 235   1997.12

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Books

  • 農業食料工学ハンドブック

    岡安崇史他( Role: Joint author)

    コロナ社  2020.6 

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    Responsible for pages:ISBN: 978-4-339-05267-1   Language:Japanese   Book type:Scholarly book

    農業機械はもとよりセンシング技術や電子制御,自動化ならびにロボット化,ICTの活用さらには環境やエネルギー,ポストハーベスト技術に加えて食料生産・流通に係わる技術分野を体系的にまとめ直し,農業食料工学の知見に資する。

  • 新スマート農業「進化する農業情報利用」

    岡安崇史他( Role: Joint author)

    農林統計出版  2019.5 

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    Responsible for pages:ISBNコード:9784897324074   Language:Japanese   Book type:Scholarly book

  • Ubiquitous Environment Control System: An Internet-of- Things–Based Decentralized Autonomous Measurement and Control System for a Greenhouse Environment

    ( Role: Joint author)

    2018.3 

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    Responsible for pages:107-123   Language:English   Book type:Scholarly book

    DOI: 10.5772/intechopen.71661

  • Smart Sensors at the IoT Frontier -Sensing and Visualization in Agriculture with Affordable Smart Devices-

    Takashi Okayasu, Andri Prima Nugroho, Daisaku Arita, Takashi Yoshinaga, Yoshiki Hashimoto, Rin-ichiro Tachiguchi( Role: Joint author)

    Springer  2017.6 

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    Responsible for pages:299-325   Language:English   Book type:Scholarly book

  • スマート農業バイブル~『見える化』で切り拓く経営&育成改革「廉価なワンボードマイコンを利用した圃場環境と植物生育状態の計測と可視化」

    岡安 崇史, アンドリ プリマ ヌグロホ, 有田大作( Role: Joint author)

    映像情報  2016.10 

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    Language:Japanese   Book type:General book, introductory book for general audience

  • 農業情報学会25周年記念出版「スマート農業」

    岡安崇史他( Role: Joint author)

    農業情報学会  2014.6 

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    Language:Japanese   Book type:Scholarly book

  • よくわかる農業施設用語解説集(農業施設学会)

    農業施設学用語解説集編集委員会編( Role: Joint author)

    農業施設学会  2012.9 

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    Responsible for pages:175頁   Language:Japanese   Book type:Scholarly book

  • 地盤工学・基礎理論シリーズ「3.土の弾塑性構成モデル」

    岡安崇史他(飛田善雄監修)( Role: Joint author)

    地盤工学会  2009.3 

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    Language:Japanese   Book type:Scholarly book

  • 地盤設計への弾塑性力学の活用に関する講習会テキスト

    岡安崇史他( Role: Joint author)

    地盤工学会九州支部  2005.9 

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    Language:Japanese   Book type:Scholarly book

  • ラズパイ・Arduino農業実験集 : Raspberry Piからはじめるカメラ撮&IoT栽培

    インターフェース編集部, 漆谷 正義 , エンヤ ヒロカズ, 岡安 崇史, 小野田 晃久, 黒崎 秀仁, 小池 誠, 須田 隼輔, 大黒 篤, 塚本 勝孝, 長井 正彦, 堀本 正文, 本多 潔, 松本 信幸, 峰野 博史, 安場 健一郎, 横山 昭義, 米本 和也

    CQ出版  2022    ISBN:9784789859882

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    Language:Japanese  

    CiNii Books

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Presentations

  • Accuracy Evaluation of Low-cost Weight Measurement Sensor for Plants

    Hamidah, A., Okayasu, T., Hoshino, Y., Inoue, E., Yasumaru, H., Mitsuoka, M., Nugroho, A.P., Sutiarso, L.

    International Symposium on Agriculture, Food, Environmental and Life Science in Asia 2019  2020.11 

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    Event date: 2019.11

    Language:English  

    Country:Japan  

  • Informatization Agriculture in Japan Invited International conference

    Takashi OKAYASU

    The International Symposium on Agricultural and Biosystem Engineering (ISABE) 2013  2013.8 

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    Event date: 2013.8

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Indonesia  

  • 植物フェノタイピングにおける仮想現実技術の利用

    岡安崇史,Pham Thanh Dong,満窪久也

    農業情報学会2024年次大会  2023.9 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:Toyohashi  

  • イチゴ高設栽培における排液情報の計測と活用

    竹中智哉,山田晴夫,上曽山 大,岡安崇史

    2018年度農業情報学会年次大会  2018.5 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京  

  • イチゴ栽培における画像を用いた生育情報測定および収量予測の実証研究

    政井隆之,岡安崇史,安武大輔,北野雅治,西澤駿人,原 康平,田中泰洋

    2018年度農業情報学会年次大会  2018.5 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京  

  • Investigation of communication networking protocol for UECS using IM920 and its validity

    Nayeen Al Amin, Takashi Okayasu, Masafumi Horimoto, Takehiko Hoshi, Eiji Inoue, Yasumaru Hirai, Muneshi Mitsuoka

    2018.5 

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  • 植物栽培空間情報モニタリングのためのモノレール式移動計測ロボットの開発

    岡安崇史,有田大作, 高場雄太郎,吉永 崇, 谷口倫⼀郎, 内山英昭, 尾﨑彰則

    2018年度農業情報学会年次大会  2018.5 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京  

  • Smart irrigation management system to enhance agriculture in Bangladesh using UECS and LPWAN

    AminNayeen Al, OkayasuTakashi, InoueEiji , (Kyushu University), HiraiYasumaru (Kyushu University), MitsuokaMuneshi (Kyushu University), HoshiTakehiko (Kindai University), HorimotoMasafumi () Holly & Co. Ltd)

    2018.8 

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    Language:English   Presentation type:Oral presentation (general)  

  • Development of a web-based data sharing and management platform to improve accuracy and reliability of elastoplastic constitutive model International conference

    Takashi Okayasu, Masami Katayama, Takahisa Nakamura, Ippei Kijiya and Tatsuya Ishikawa

    Fourth International Conference on Railway Technology: Research, Development and Maintenance  2018.9 

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  • 粒状体力学モデルの精度向上のための情報共有プラットフォームの開発

    岡安崇史,片山優海,井上英二 ,平井康丸,光岡宗司

    農業環境工学関連学会2018年合同大会  2018.9 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:Ehime  

  • Development of plant phenotyping platform using affordable devices and sensors International conference

    T. Okayasu, D. Arita, T. Yoshinaga, A. Shimada, R. Taniguchi, E. Inoue, Y. Hirai, and M. Mitsuoka

    AFITA/WCCA2018  2018.10 

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    Country:Japan  

  • RGB-D センサを用いた植物生育特徴量の計測とその精度評価

    長浜義典,野田龍一,野村浩一,安武大輔,岩尾忠重,北野雅治,井上英二,岡安崇史

    2019年度農業情報学会年次大会  2019.5 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:Tokyo  

  • 深層学習で得られたイチゴ生育特徴量の利用に関する研究

    内山美咲・岡安崇史・政井隆之・田中泰洋・前田衡・安武大輔・井上英二・平井康丸・光岡宗司

    2019年度農業情報学会年次大会  2019.5 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:Tokyo  

  • Plant Weight Measurement Using Low Cost Load Cell and Its Accuracy Evaluation

    Astriati Hamidah, Takashi Okayasu, Yu Hoshino, Eiji Inoue, Yasumaru Hirai, Muneshi Mitsuoka, Andri Prima Nugroho and Lilik Sutiarso

    2019.5 

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  • Development of Irrigation Management System Based on LPWAN-UECS for Distributed Open Fields

    Nayeen Al Amin, Takashi Okayasu, Masafumi Horimoto, Hideto Kurosaki Takehiko Hoshi, Eiji Inoue, Yasumaru Hirai, Muneshi Mitsuoka

    2019.5 

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  • RGB-D センサを用いた植物生育特徴量の計測とその精度評価

    長浜義典,野田龍一,野村浩一,安武大輔,岩尾忠重,北野雅治,井上英二,岡安崇史

    2019年度農業情報学会年次大会  2019.5 

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    Language:English   Presentation type:Oral presentation (general)  

    Venue:Tokyo  

  • 深層学習で得られたイチゴ生育特徴量の利用に関する研究

    内山美咲・岡安崇史・政井隆之・田中泰洋・前田衡・安武大輔・井上英二・平井康丸・光岡宗司

    2019年度農業情報学会年次大会  2019.5 

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    Language:English   Presentation type:Oral presentation (general)  

    Venue:Tokyo  

  • Plant Weight Measurement Using Low Cost Load Cell and Its Accuracy Evaluation

    Astriati Hamidah, Takashi Okayasu, Yu Hoshino, Eiji Inoue, Yasumaru Hirai, Muneshi Mitsuoka, Andri Prima Nugroho and Lilik Sutiarso

    2019.5 

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  • Development of Irrigation Management System Based on LPWAN-UECS for Distributed Open Fields

    Nayeen Al Amin, Takashi Okayasu, Masafumi Horimoto, Hideto Kurosaki Takehiko Hoshi, Eiji Inoue, Yasumaru Hirai, Muneshi Mitsuoka

    2019.5 

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  • 画像情報を用いて植物の特徴を探す Invited

    岡安崇史

    第207回SAM会  2021.4 

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    Venue:Online  

  • Plant phenotyping technologies using low cost devices Invited

    Okayasu, T.

    The 14th TSAE International Conference & 22nd TSAE National Conference (Webinar)  2021.5 

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  • Development of plant phenotyping system using affordable IoT devices Invited International conference

    Okayasu, T., Ito, J., Nomura, K., Yasutake, D., Ozaki, Y., Iwao, T., Inoue, E., Hirai, Y.

    5th edition of the International Conference of the International Commission of Agricultural Engineering  2021.5 

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  • Accuracy Evaluation of Self-position Estimation and Mapping Method for Farm Supporting Robot in Greenhouse

    Sadam A, A.M., Okayasu, T., Inoue, E., Hirai, Y.

    2021.5 

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  • RGB-Dカメラと複数波長LEDを用いた植物形状・分光画像計測技術の開発

    岡安崇史,高橋秀平,伊藤次郎,長浜義典,井上英二,平井廉丸,光岡宗司

    農業情報学会2021年度 年次大会  2021.5 

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    Venue:Online  

  • 深層学習によるパノラマ画像からの植物生育情報の抽出

    小野渓太, 岡安崇史, 井上英二 , 平井康丸, 光岡宗司

    農業情報学会2021年度 年次大会  2021.5 

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    Venue:Online  

  • DX で変わる・変える地域農業 Invited

    岡安崇史

    ICT 活用技術マンスリー講演会・地盤工学会関西支部  2021.6 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:Online  

  • 廉価なイメージセンサーを用いた植物の生育特徴量の計測と可視化について Invited

    岡安崇史

    施設園芸・環境制御技術セミナー  2021.7 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:Online  

  • 情報を生かす農業の実現に向けて Invited

    岡安崇史

    KOINEオンラインセミナー 「地域エネルギー・情報を基盤としたスマートシティ構想」  2021.9 

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    Venue:Online  

  • Plant phenotyping technology to enhance smart farming Invited International conference

    Okayasu, T.

    2021 IPB-FFTC Workshop on "Adaptation and Adoption of Agricultural Sensors, Information Communication Technologies, and Smart Supply Chains to Support Smallholder Farmers"  2021.9 

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  • スマート農業で活かす・活かせる植物フェノタイピング技術について

    岡安崇史,岡山 毅,川越義則,梅田大樹,平良英三

    第79回農業食料工学会年次大会  2021.9 

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    Venue:Online  

  • 植物形質の時空間計測におけるRGB-D特徴量を用いた生育評価

    伊藤次郎, 岡安崇史, 安武大輔, 井上英二, 平井康丸

    第79回農業食料工学会年次大会  2021.9 

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    Venue:Online  

  • 深層学習による全天球画像からの植物生育情報の抽出とその精度評価

    小野渓太, 岡安崇史, 井上英二, 平井康丸

    第79回農業食料工学会年次大会  2021.9 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:Online  

  • 施設園芸を中心としたスマート農業の現状について Invited

    岡安崇史

    電気学会 農業センシング委員会  2021.10 

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    Venue:Online  

  • 低コストデバイスを用いた植物生育特徴量の計測とその利用 Invited

    岡安崇史

    令和3年度野菜総合研修会  2021.10 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:Online  

  • 農業における IT(Information Technology)の活用 Invited International conference

    岡安崇史

    ベトナム・九州農学フォーラム  2021.11 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:Online  

  • 非GNSS環境における小型ドローンの 自律飛行制御システムの開発

    田中 颯,岡安崇史,Sutan M. S. Awal,伊藤次郎,井上英二,平井康丸,光岡宗司

    第75回九州農業食料工学会例会  2021.12 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:Online  

  • 栽植密度差をつけたホウレンソウを対象としたRGB-D特徴量による体積推定および生育評価

    伊藤次郎, 岡安崇史, 安武大輔, 井上英二, 平井康丸

    第75回九州農業食料工学会例会  2021.12 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:Online  

  • Accuracy evaluation of data augmentation to improve fruit fly detection

    Dong, P.T., Okayasu, T., Inoue, E., Hirai, Y., Vo., H.B.

    2021.12 

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  • Accuracy Evaluation of Navigation Stack for Small Tank Robot based on ROS

    Awal, S.M.S., Okayasu, T., Inoue, E., Hirai, Y.

    2021.12 

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  • 農業IoT 普及のための教材開発と問題点の抽出

    堀本正文・岡安崇史・八島亜美・釜瀬朋子・河野知和

    第75回九州農業食料工学会例会  2021.12 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:Online  

  • 深度画像情報を用いた植物3Dモデルの再構築

    兒玉拓也,岡安崇史,井上英二,平井康丸

    第75回九州農業食料工学会例会  2021.12 

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    Venue:Online  

  • Plant Phenotyping Technology to Enhance Next Smart Agriculture Invited International conference

    Okayasu, T.

    AgriApp 2022 Workshop  2022.3 

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    Country:Japan  

  • Data augmentation combining with active learning for fruit fly detection and verification of its validity

    Dong, P. T., Okayasu, T., Inoue , E., Hirai, Y., Vo, H. B.

    2022.5 

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  • Autonomous Mobile Robot Design Based on ROS

    Sadam, S. M., Okayasu, T., Inoue, E., Hirai, Y.

    2022.5 

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  • Development of Farming Support Robot Based on ROS

    Sadam, S. M., Okayasu, T., Inoue, E., Hirai, Y.

    2022.5 

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  • 植物の水分吸収・ストレス動態に着目した灌水制御ロジックの開発とその評価

    上野文太,岡安崇史,堀本正文,井上英二,平井康丸

    農業情報学会2022年度年次大会  2022.5 

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    Language:Japanese  

    Venue:Online  

  • 植物フェノタイピングプラットフォームによる生育情報の時空間計測・評価技術の構築

    伊藤次郎,岡安崇史,安武大輔,野村浩一,井上英二,平井康丸

    農業情報学会2022年度年次大会  2022.5 

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    Venue:Online  

  • スマート農業講習会用環境計測ノード製作キットの開発

    堀本正文 ,岡崇史安,平井康丸,八島亜美,釜瀬朋子,河野知和

    農業情報学会2022年度年次大会  2022.5 

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    Venue:Online  

  • 3次元点群情報からの植物骨格形状の抽出

    兒玉拓也,岡安崇史 ,安武大輔,畔栁武司 ,井上英二,平井康丸

    農業情報学会2022年度年次大会  2022.5 

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    Venue:Online  

  • 3Dプリンタパーツを援用した植物フェノタイピング装置の開発

    津倉舜司,岡安崇史,丸山明子,井上英二,平井康丸

    農業情報学会2022年度年次大会  2022.5 

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    Language:Japanese  

    Venue:Online  

  • 低コストフェノタイピング装置を用いた植物形質の計測と抽出

    津倉舜司,岡安崇史,丸山明子,井上英二,平井康丸

    農業情報学会2022年度年次大会  2022.5 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:Online  

  • Affordable plant phenotyping tools for digital agriculture Invited International conference

    Okayasu, T.

    International Webinar on Smart Systems for a Sustainable Agriculture and Food Security  2022.6 

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    Country:Japan  

  • Change and evaluation of growth feature values using time-series images for leafy plant community

    Okayasu, T., Ito, J., Nomura, K., Yasutake, D., Ozaki, Y., Iwao, T., Hirai, Y.

    The XX CIGR World Congress 2022  2022.12 

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  • 農業におけるAIの利用事例の紹介 Invited

    岡安崇史

    AIを身近で活用するスマート農業セミナー  2022.7 

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    Presentation type:Oral presentation (general)  

    Venue:Online  

  • 農業におけるICT,AI,ロボット技術の利用 Invited

    岡安崇史

    農業教育研究部会研修会  2022.8 

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    Presentation type:Oral presentation (general)  

    Venue:福岡市  

  • 九州大学における農学DXの実践と生物環境工学への貢献 Invited

    岡安崇史

    日本生物環境工学会2022年福岡大会  2022.9 

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    Venue:福岡市  

  • DXを活用した農学におけるデータサイエンス・工学教育の強化 Invited

    岡安崇史

    第75回九州農業食料工学会例会  2022.10 

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    Presentation type:Oral presentation (general)  

    Venue:Online  

  • Smart farming technologies for small and mid scale horticulture Invited International conference

    Okayasu, T.

    KoRAA training program  2022.10 

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  • Plant growth sensing for data-driven agriculture Invited International conference

    Okayasu, T.

    The 10th International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB 2022)  2022.11 

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  • Plant Phenotyping for The Next Smart Agriculture Invited International conference

    Okayasu, T.

    Implementasi Program Kompetisi Kampus Merdeka  2022.12 

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  • 深層学習と仮想現実技術を用いた植物生育情報の抽出と可視化

    小野渓太,岡安崇史 ,安武大輔 ,平井康丸

    農業情報学会2023年度年次大会  2023.5 

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    Venue:福岡市  

  • 農業情報を記録・共有するためのWeb アプリ開発とその有効性の評価

    満窪久也,岡安崇史,安武大輔,平井康丸,尾崎剛教,古賀正治

    農業情報学会2023年度年次大会  2023.5 

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    Venue:福岡市  

  • UECSによる複合制御実現のためのアルゴリズム的実験と実装

    堀本正文,岡安崇史,安武大輔,平井康丸,尾崎剛教,古賀正治

    農業情報学会2023年度年次大会  2023.5 

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    Venue:福岡市  

  • 重量センサによる植物の水利用特性の可視化と灌水制御への応用

    草水穏敬,岡安崇史,堀本正⽂,安武大輔 ,平井康丸 ,尾崎剛教,古賀正治

    農業情報学会2023年度年次大会  2023.5 

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    Venue:福岡市  

  • ニラの点群情報を用いた3次元形状モデルの生成

    兒玉拓也,岡安崇史,安武大輔,平井康丸,畔栁武司

    農業情報学会2023年度年次大会  2023.5 

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    Presentation type:Oral presentation (general)  

    Venue:福岡市  

  • A Trial of DX-oriented Research and Education in Kyushu University Invited

    Okayasu, T.

    International Joint Workshop on DX Research and Education to Realize Sustainable Food Production  2023.3 

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  • 農業DX人材育成のための数理・データサイエンス・工学教育の強化 Invited

    岡安崇史

    農業情報学会2023年次大会シンポジウム   2023.5 

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    Presentation type:Oral presentation (invited, special)  

    Venue:福岡市  

  • 多機能収穫台車を用いた多元農業情報センシングの試み

    新開飛雅・岡安崇史・堀本正文・有田大作・平井康丸・安武大輔

    第76回九州農業食料工学会例会  2023.9 

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    Venue:Okinawa  

  • 3次元個別要素法によるロータリ耕うん時動力の予測

    平山祐多・岡安崇史・加藤豊大・平井康丸・中谷公紀・海田健児・秀川睦実

    第76回九州農業食料工学会例会  2023.9 

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    Venue:Okinawa  

  • 農業DXを加速させる数理・データサイエンス教育の一提案

    岡安崇史・尾﨑彰則・Muhammad Rashed Al Mamun・平井康丸

    第76回九州農業食料工学会例会  2023.9 

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    Venue:Okinawa  

  • 最適な受粉機構設計のための噴射ノズルの性能評価

    蒋 再飛・岡安崇史・Muhammad Rashed Al Mamun・平井康丸・安武大輔

    第76回九州農業食料工学会例会  2023.9 

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    Venue:Okinawa  

  • ハイパースペクトルイメージングによる植物葉の分光・蛍光特性の評価

    宮田亮介・岡安崇史・安武大輔・平井康丸・福島崇志

    第76回九州農業食料工学会例会  2023.9 

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    Venue:Okinawa  

  • Comparison of High Accuracy and Throughput 3D Reconstruction Techniques to Collect Plant Canopy Information

    2024.5 

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  • Neural Radiance Fieldsを用いたニラ植物の3Dメッシュ生成とその精度評価

    Pham, D.T., Okayasu, T., Yasutake, D., Hirai, Y., Mamun, M.R.A., Ozaki, T., Koga, M., Hidaka, K., Nomura, K., Vo, H.B.

    農業情報学会2024年次大会  2024.5 

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    Venue:Takasaki  

  • ノーコーディングを目指したUECS環境計測・制御ノードの設計・開発

    堀本正文,岡安崇史,Amin Nayeen Al,安武大輔,平井康丸,尾崎剛教,古賀正治

    農業情報学会2024年次大会  2024.5 

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    Venue:Takasaki  

  • データ駆動型農業のためのUECS対応植物フェノタイピングノードの提案

    岡安崇史,Dong Thanh Pham,安武大輔,Muhammad Rashed Al Mamun, 平井康丸,尾崎剛教,古賀正治

    農業情報学会2024年次大会  2024.5 

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    Venue:Takasaki  

  • Plant Phenotyping Technology Leading to Data-driven Agriculture Invited

    Takashi OKAYASU

    2023.7 

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  • Development of An Artificial Intelligent-based Plant Phenotyping Platform to Enhance Smart Agriculture and Verification of Its Validity

    Pham Thanh Dong, Takashi Okayasu, Daisuke Yasutake, Yasumaru Hirai, Takenori Ozaki, Masaharu Koga, Kota Hidaka, Masaharu Kitano

    2023.7 

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  • Arduino低コストUECSによる自律分散型複合環境制御システムのイチゴ高設養液栽培ハウス導入試験

    星 岳彦,瀧川義浩,坂本 勝,戸板裕康,小林一晴,安場健一郎,吉田裕一,後藤丹十郎,黒崎秀仁,岡安崇史

    2018年度農業情報学会年次大会  2018.5 

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    Venue:東京  

  • せん断方向の違いによる塑性変形の方向依存性を表現可能な構成式−中空ねじりせん断試験結果との比較−

    橋口公一,杉本昌也,竹添亮,堤成一郎,岡安崇史,斉藤公志郎

    第56回農業機械学会九州支部例会  2001.9 

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    Venue:Saga  

  • PIVに基づく土の変位オンライン計測システムの開発とその妥当性の検討

    岡安崇史,橋口公一,武田 敏,尾崎伸吾,武部和之,上野正実,深見公一郎

    第56回農業機械学会九州支部例会  2001.9 

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    Venue:Saga  

  • 走行車輪下の地盤変形に関する弾塑性有限要素解析

    岡安崇史,橋口公一,堤成一郎,メヒディコジャステポール,尾崎伸吾,上野正実

    第56回農業機械学会九州支部例会  2001.9 

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    Venue:Saga  

  • 走行車輪下近傍の地盤の変形特性に関する研究

    岡安崇史,橋口公一,尾崎伸吾,武田 敏,白 勇,上野正実,深見公一郎

    第56回農業機械学会九州支部例会  2001.9 

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    Venue:Saga  

  • 砂地盤における剛性車輪下の土粒子変位予測モデル

    上野正実,深見公一郎,橋口公一,岡安崇史

    第56回農業機械学会九州支部例会  2001.9 

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    Venue:Saga  

  • 時間依存性・下負荷面モデルの土への適用性の検討

    橋口公一,岡安崇史,尾崎利行

    第37回地盤工学研究発表会  2002.7 

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    Venue:Osaka  

  • 走行車輪下近傍の土の変位計測へのPIVの適用

    岡安崇史,橋口公一,尾崎伸吾,武田敏,上野正実

    第37回地盤工学研究発表会  2002.7 

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    Venue:Osaka  

  • 静的下負荷面導入による時間依存性・下負荷面モデルの拡張

    岡安崇史,橋口公一,尾崎利行

    第37回地盤工学研究発表会  2002.7 

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    Venue:Osaka  

  • 下負荷面モデルの概念の導入によるクーロン摩擦則の拡張

    尾崎伸吾,岡安崇史,橋口公一,コジャステポール・メヘディ

    第37回地盤工学研究発表会  2002.7 

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    Venue:Osaka  

  • 下負荷面の概念を導入した一般化摩擦モデル

    橋口公一,岡安崇史,尾崎伸吾,コジャステポール・メヘディ,在郷 毅

    第57回農業機械学会九州支部例会  2002.8 

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    Venue:Isahaya  

  • 時間依存性非弾性構成式による金属の力学特性に関する予測

    橋口公一,岡安崇史,齊藤公志郎,梅田大樹,大西 陽

    第57回農業機械学会九州支部例会  2002.8 

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    Venue:Isahaya  

  • 一般化摩擦モデルを導入した有限要素解析プログラムの開発

    岡安崇史,橋口公一,尾崎伸吾,在郷 毅,コジャステポール・メヘディ,上野正実

    第57回農業機械学会九州支部例会  2002.8 

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    Venue:Isahaya  

  • 走行車輪下近傍の土の変位計測と地盤の変形挙動解析

    岡安崇史,橋口公一,尾崎伸吾,コジャステポール・メヘディ,武田 敏,武部和之,上野正実,深見公一郎

    第57回農業機械学会九州支部例会  2002.8 

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    Venue:Isahaya  

  • PIVを利用した車輪下の初期沈下状態における土の変形特性とモデル化

    上野正実,深見公一郎,橋口公一,岡安崇史

    第57回農業機械学会九州支部例会  2002.8 

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    Venue:Isahaya  

  • 剛性車輪下の土の変位増分モデルへのガウス関数の適応性

    深見公一郎,上野正実,橋口公一,岡安崇史

    第57回農業機械学会九州支部例会  2002.8 

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    Venue:Isahaya  

  • 下負荷面の概念に基づく一般化摩擦モデルとその予測特性の評価

    橋口公一,岡安崇史,尾崎伸吾,メヒディ・コジャステポール,在郷毅,上野正実,深見公一郎

    第61回農業機械学会年次大会  2002.9 

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    Venue:Morioka  

  • Elastoplastic Finite Element Analysis of Soil Beneath a Rigid Wheel

    HASHIGUCHI, K. KHOJASTEHPOUR, M., OKAYASU, T. and OZAKI S.:

    2002.9 

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  • PIVに基づく走行車輪下近傍の地盤変形挙動解析

    岡安崇史,橋口公一,メヒディ・コジャステポール,武田敏,尾崎伸吾,武部和之,上野正実,深見公一郎

    第61回農業機械学会年次大会  2002.9 

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    Venue:Morioka  

  • Symmetric Bifurcation Analysis by the Subloading Surface Model with Tangential Stretching

    HASHIGUCHI, K., KHOJASTEHPOUR, M., OKAYASU, T. and OZAKI, S.

    2003.4 

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  • 下摩擦面モデルによる接触問題の有限要素解析

    橋口公一,岡安崇史,尾崎伸吾,KHOJASTEHPOUR, M.,堀田直岐,上野正実

    第62回農業機械学会年次大会  2003.4 

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    Venue:Saitama  

  • 速度依存性−拡張下負荷面モデルによる金属材料の繰返し負荷挙動の予測

    橋口公一,岡安崇史,大西 陽,齊藤公志郎,梅田大樹,西出寿也

    第62回農業機械学会年次大会  2003.4 

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    Venue:Saitama  

  • 土の構造変化表現のための拡張上負荷面モデルの提案および適用性の検討

    岡安崇史,橋口公一,中山 祥,尾崎利行

    第62回農業機械学会年次大会  2003.4 

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    Venue:Saitama  

  • サイロ内粒子の流動特性に関する弾塑性有限要素解析

    岡安崇史,橋口公一,VARDOULAKIS, I.,尾崎利行,矢嶋泰基

    第62回農業機械学会年次大会  2003.4 

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    Venue:Saitama  

  • 下負荷面モデルを導入した弾塑性有限要素法によるTrap-Door問題の解析

    岡安崇史,橋口公一,VARDOULAKIS, I.,尾崎利行,竹添 亮

    第62回農業機械学会年次大会  2003.4 

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    Venue:Saitama  

  • 車輪走行性の高精度予測に関する研究—第4報 接地応力予測モデルの作成—

    上野正実,深見公一郎,橋口公一,岡安崇史,尾崎伸吾

    第62回農業機械学会年次大会  2003.4 

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    Venue:Saitama  

  • すべり下負荷面モデルによる接触・摩擦問題の有限要素解析

    橋口公一,岡安崇史,尾崎伸吾,堀田直岐,上野正実

    第38回地盤工学研究発表会  2003.7 

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    Venue:Akita  

  • アンカー引揚試験の弾塑性有限要素解析

    岡安崇史,橋口公一,尾崎利行,竹添亮

    第38回地盤工学研究発表会  2003.7 

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    Venue:Akita  

  • PIVによる地盤変形挙動の計測と地盤内応力予測に関する研究

    岡安崇史,橋口公一,尾崎伸吾,武田敏,武部和之,上野正実,深見公一郎

    第38回地盤工学研究発表会  2003.7 

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    Venue:Akita  

  • 拡張下負荷面モデルを適用したシラスの非排水繰返しせん断挙動の予測

    平瑞樹,橋口公一,岡安崇史

    第38回地盤工学研究発表会  2003.7 

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    Venue:Akita  

  • アンカー引抜時の地盤の変形挙動に関する弾塑性有限要素解析

    岡安崇史,橋口公一,尾崎利行,竹添亮

    第6回応用力学シンポジウム(土木学会)  2003.9 

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    Venue:Tokushima  

  • 回転攪拌機による地盤改良土の品質特性と品質評価方法に関する考察

    古賀浩史,赤坂宗昭,杉谷和彦,藤井道博,橋口公一,岡安崇史

    土木学会平成15年度全国大会  2003.9 

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    Venue:Tokushima  

  • 下負荷面摩擦モデルによる接触・摩擦現象の有限要素解析(第二報)−接触応力および相対変位特性について−

    橋口公一,尾崎伸吾,岡安崇史,在郷毅,上野正実

    第58回農業機械学会九州支部例会  2003.9 

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    Venue:Miyazaki  

  • サイロ内紛粒体層の流動現象に関する弾塑性有限要素解析(第一報)

    岡安崇史・橋口公一・尾崎利行・矢嶋泰基・尾崎伸吾

    第58回農業機械学会九州支部例会  2003.9 

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    Venue:Miyazaki  

  • 下負荷面の概念を導入した現象論的摩擦モデルの提案

    橋口公一,尾崎伸吾,岡安崇史,在郷 毅

    第24回テラメカニックス研究会  2003.11 

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    Venue:Fukuoka  

  • 下負荷面摩擦モデルを用いた土−機械間の相互作用の有限要素解析

    橋口公一,尾崎伸吾,岡安崇史,堀田直岐

    第24回テラメカニックス研究会  2003.11 

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    Venue:Fukuoka  

  • Trap-Door問題に関する弾塑性有限要素解析

    岡安崇史,橋口公一,尾崎利行,矢嶋泰基

    第24回テラメカニックス研究会  2003.11 

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    Venue:Fukuoka  

  • 盛土基礎地盤の側方流動解析に関する一考察

    橋口公一,岡安崇史,吉丸哲司,近平卓哉,阪上最一

    第39回地盤工学研究発表会  2004.7 

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    Venue:Niigata  

  • 繰返し荷重を受けるアンカーの支持力に関する弾塑性有限要素解析

    岡安崇史,橋口公一,尾崎利行,尾崎伸吾,矢嶋泰基

    第39回地盤工学研究発表会  2004.7 

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    Venue:Niigata  

  • 上負荷面概念を導入した拡張下負荷面モデルによる密度の異なる砂の繰返し負荷挙動予測

    岡安崇史,橋口公一,中山 祥,吉丸哲司

    第39回地盤工学研究発表会  2004.7 

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    Venue:Niigata  

  • 下負荷面摩擦モデル用いた地盤−杭間の相互作用の有限要素解析

    尾崎伸吾,岡安崇史,橋口公一,在郷毅

    第39回地盤工学研究発表会  2004.7 

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    Venue:Niigata  

  • 下負荷面モデルに基づく弾塑性有限要素法による落し戸問題の解

    尾崎利行,橋口公一,岡安崇史

    第39回地盤工学研究発表会  2004.7 

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    Venue:Niigata  

  • ダブルミキシング工法による軟弱地盤の改良とその有効性の評価

    古賀浩史,赤坂宗昭,杉谷和彦,藤井道博,橋口公一,岡安崇史

    第39回地盤工学研究発表会  2004.7 

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    Venue:Niigata  

  • 2つの非古典弾塑性モデルを用いた車輪走行・転圧現象の有限要素解析

    橋口公一,尾崎伸吾,岡安崇史,堀田直岐

    第63回農業機械学会年次大会  2004.9 

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    Venue:Kobe  

  • PIVによる走行車輪下の地盤変形挙動の精密計測に関する研究 —PIVアルゴリズムの改良とその妥当性の検討—

    岡安崇史,橋口公一,尾崎伸吾,川口史郎,矢嶋泰基,木下和典,上野正実,深見公一郎

    第63回農業機械学会年次大会  2004.9 

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    Venue:Kobe  

  • 繰返し荷重作用時のアンカー支持力に関する弾塑性有限要素解析

    岡安崇史,橋口公一,尾崎利行,矢嶋泰基,尾崎伸吾

    第63回農業機械学会年次大会  2004.9 

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    Venue:Kobe  

  • サイロ内粉粒体層の流動現象に関する基礎的研究 —実験値との比較および影響因子(摩擦角)についての考察—

    岡安崇史,橋口公一,矢嶋泰基,尾崎伸吾,木下和典

    第63回農業機械学会年次大会  2004.9 

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    Venue:Kobe  

  • 繰返し荷重を受けるアンカー周辺地盤の変形挙動に関する弾塑性有限要素解析

    岡安崇史,橋口公一,尾崎利行,矢嶋泰基,尾崎伸吾,木下和典

    第7回応用力学シンポジウム(土木学会)  2004.9 

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    Venue:Nagoya  

  • 下負荷面モデルを導入した有限要素法による降下床実験のシミュレーション

    尾崎利行,岡安崇史,橋口公一,矢嶋泰基

    第7回応用力学シンポジウム(土木学会)  2004.9 

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    Venue:Nagoya  

  • 盛土施工に伴う過圧密地盤に関する基礎的研究

    吉丸哲司,橋口公一,岡安崇史,阪上最一

    第7回応用力学シンポジウム(土木学会)  2004.9 

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    Venue:Nagoya  

  • 下負荷面摩擦モデルを用いた地盤−杭間の相互作用の弾塑性有限要素解析

    尾崎伸吾,橋口公一,岡安崇史

    第7回応用力学シンポジウム(土木学会)  2004.9 

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    Venue:Nagoya  

  • サイロ内粉粒体層の流動現象に関する研究

    岡安崇史,橋口公一,矢嶋泰基,木下和典,田代克己,尾崎伸吾

    農業環境工学関連学会2004年合同大会  2004.9 

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    Venue:Fukuoka  

  • 土の変形および粉粒体層の流動現象の高精度計測法に関する研究

    岡安崇史,橋口公一,尾崎伸吾,武部和之,川口史郎,田代克己

    農業環境工学関連学会2004年合同大会  2004.9 

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    Venue:Fukuoka  

  • Tangential Stress-rate Effect in Soils Subjected to Cyclic Circular Stress Path in the Deviatoric Stress Plane International conference

    Setouchi, H. Hashiguchi, K., Okayashu, T. and Shikanai, T.

    International Conference on Computational & Experimental Engineering and Sciences 2004  2004.9 

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    Country:Portugal  

  • Elastoplastic Finite Element Analysis of the Trapdoor Problem International conference

    International Conference on Computational & Experimental Engineering and Sciences 2004  2004.9 

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    Country:Portugal  

  • Finite Element Simulation on Uplift Problem of Ground Anchor International conference

    Okayasu, T., Hashiguchi, K.., Ozaki, T., Yajima, D. and Ozaki, S.

    International Conference on Computational & Experimental Engineering and Sciences 2004  2004.9 

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    Country:Portugal  

  • Deformation Analysis of Cohesive Soft Ground with Solidified Surface under Fill Construction International conference

    Yoshimaru, T., Hashiguchi, K. Okayasu, T. and Sakajo, S.

    International Conference on Computational & Experimental Engineering and Sciences 2004  2004.9 

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    Country:Portugal  

  • サイロ内粉粒体層の流動現象に関する基礎的研究

    岡安崇史,橋口公一,矢嶋泰基,木下和典,田代克己,尾崎伸吾

    第59回農業機械学九州支部例会  2004.10 

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    Venue:Okinawa  

  • 農用ハウス基礎の引抜現象に関する一考察

    岡安崇史,橋口公一,長崎裕司,玉城勝彦,金井源太

    第59回農業機械学九州支部例会  2004.10 

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    Venue:Okinawa  

  • 接線緩和を考慮した下負荷面モデルによる非比例負荷変形挙動の予測

    橋口公一,岡安崇史,籾井秀斗,尾崎伸吾

    第59回農業機械学九州支部例会  2004.10 

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    Venue:Okinawa  

  • 弾塑性有限要素法による車輪走行・転圧現象の再現

    尾崎伸吾,岡安崇史,橋口公一,川口史郎,上野正実

    第59回農業機械学九州支部例会  2004.10 

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    Venue:Okinawa  

  • A basic research of the strength to the solidification soil on the soft ground International conference

    Yoshimaru, T., Okayasu T., Hashiguchi, K. and Sakajo, S.

    2005.1 

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    Country:United States  

  • Deformation behavior analysis in tunnel excavation by elastoplastic finite element method based on subloading surface model International conference

    Ozaki, T., Okayasu T., Hashiguchi, K. and Yajima, D.

    2005.1 

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    Country:United States  

  • Elastoplastic constitutive equation of volcanic sandy soil “SHIRASU” based on the subloading surface model International conference

    Plasticity ’05: 11th Int. Symp. Plasticity and its Application  2005.1 

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    Venue:Kauwai   Country:United States  

  • Finite element analysis on uplift problem of ground anchor International conference

    Okayasu T., Hashiguchi, K., Yajima, D., Ozaki, T and Ozaki, S.

    2005.1 

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    Country:United States  

  • 盛土の転圧工程に関する一考察

    橋口公一,岡安崇史,吉丸哲司

    第39回地盤工学研究発表会  2005.7 

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    Venue:Hakodate  

  • PIVによる地盤変形計測法とその高精度化に関する研究

    岡安崇史,橋口公一,川口史郎,矢嶋泰基,尾崎伸吾

    第40回地盤工学研究発表会  2005.7 

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    Venue:Hakodate  

  • すべり摩擦現象を考慮した圧密試験の土−水連成有限要素解析

    尾崎伸吾,岡安崇史,橋口公一,陳玳

    第8回応用力学シンポジウム(土木学会)  2005.9 

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    Venue:Tokyo  

  • 農用ハウス基礎の引抜現象に関する研究

    岡安崇史,橋口公一,木下和典,長﨑裕司,玉城勝彦,金井源太

    農業環境工学関連学会2005年合同大会  2005.9 

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    Venue:Kanazawa  

  • サイロ内粉粒体層の流動現象に関する基礎的研究—排出口部傾斜付きサイロにおける流動現象および傾斜角度についての考察—

    矢嶋泰基,岡安崇史,橋口公一,安河内 栄

    農業環境工学関連学会2005年合同大会  2005.9 

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    Venue:Kanazawa  

  • 金属材料における接線方向のクリープを伴う弾・粘塑性モデルの提案

    安河内栄,岡安崇史,矢嶋泰基,井上英二

    第60回農業機械学九州支部例会  2005.11 

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    Venue:Fukuoka  

  • ホッパ型サイロ内粒子層における流動現象の弾塑性有限要素解析

    木下和典,岡安崇史,高林亮,井上英二

    第60回農業機械学九州支部例会  2005.11 

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    Venue:Fukuoka  

  • Elastoplastic Finite Element Analysis of Footing Problem on Soil Ground by the Subloading Surface Model International conference

    Ozaki, T., Hashiguchi, K., Okayasu, T.

    International Conference on Computational & Experimental Engineering and Sciences 2005  2005.12 

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    Country:India  

  • Proposal of Elasto-Viscoplastic Constitutive Model based on Subloading Surface Concept and Its Application to Metal Material International conference

    Okayasu, T., Takabayashi, R., Hashiguchi, K., Inoue, E..

    International Conference on Computational & Experimental Engineering and Sciences 2005  2005.12 

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    Country:India  

  • 構造を有する土の転圧現象に関する弾塑性有限要素解析

    大山将史, 岡安崇史, 松田浩幹, 尾崎伸吾, 井上英二

    農業環境工学関連学会2006年合同大会  2006.9 

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    Venue:Sapporo  

  • 計算力学教育のための有限要素解析入門パッケージの構築

    岡安崇史, 井上英二

    農業環境工学関連学会2006年合同大会  2006.9 

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    Venue:Sapporo  

  • サイロ内粉粒体層の流動現象に関する実験と数値解析

    安河内栄, 岡安崇史, 奥田康隆, 矢島泰基, 井上英二

    農業環境工学関連学会2006年合同大会  2006.9 

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    Venue:Sapporo  

  • 汎用有限要素解析コードMSC.Marcへの下負荷面モデルの導入とその妥当性評価

    下村武司,岡安崇史,光岡宗司,井上英二

    農業機械学会九州支部  2007.8 

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    Venue:Kagoshima  

  • 営農支援のための圃場気象環境モニタリングの開発とその利用

    岡安崇史,西出寿也,羽田野梨絵,長瀬亮祐,平田真理,中司 敬,山邊信利,光岡宗司,井上英二,

    農業機械学会九州支部  2007.8 

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    Venue:Kagoshima  

  • ハイパースペクトルイメージングシステムの開発とその検証

    西出寿也,岡安崇史,羽田野梨絵,長瀬亮祐,井上英二

    農業環境工学関連学会2007年合同大会  2007.9 

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    Venue:Tokyo  

  • 浅層耕うんされた土壌の踏圧現象に関する一考察

    松田浩幹,岡安崇史,光岡宗司,井上英二,上野正実,深見公一郎

    農業環境工学関連学会2007年合同大会  2007.9 

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    Venue:Tokyo  

  • 粒状材料の揺動選別現象に関する個別要素法解析

    江口 寛,岡安崇史,山形友祐,光岡宗司,井上英二,今村英一

    農業環境工学関連学会2007年合同大会  2007.9 

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    Venue:Kagoshima  

  • 構造を有する地盤の転圧現象に関する弾塑性有限要素解析

    岡安崇史,大山将史,古野裕子,光岡宗司,井上英二,橋口公一

    土木学会(応用力学シンポジウム)  2007.9 

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    Venue:Hiroshima  

  • 3次元有限要素法による立木伐倒時の切り口周辺部の応力解析

    岡安崇史・上村 巧・松田浩幹・光岡宗司・井上英二・鹿島潤・岡 勝

    森林利用学会  2007.11 

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    Venue:Tsukuba  

  • Utilization of Hyperspectral Imaging Technique for Low Protein Rice Production in Kasuya, Fukuoka International conference

    Okayasu, T. Hadano, R., Hirata, M., Yamabe, N., Yasutake, H., Nakaji, K., Mitsuoka, M., Inoue, E.

    Int. S. Agr. Struct. Agr. Engng. 2007  2007.12 

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    Country:Taiwan, Province of China  

  • Elastoplastic finite element analysis on soil compaction phenomena by wheel traffics International conference

    Okayasu, T., Matsuda, H., Furuno, Y., Mitsuoka, M., Inoue, E., Hashiguchi, K., Ueno, M., Fukami, K.

    Int. WS Agri. Biosy. Engng.  2007.12 

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    Country:Viet Nam  

  • 車輪走行時の土壌踏圧現象に関する三次元弾塑性有限要素解析

    上辻直哉,岡安崇史,松田浩幹,井上英二,光岡宗司,上野正実,深見公一郎

    第67回農業機械学会年次大会  2008.3 

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    Venue:Miyazaki  

  • 汎用有限要素解析ソフト(MSC.Marc)への拡張下負荷面モデルの導入とその妥当性の評価

    下村武司,岡安崇史,光岡宗司,井上英二

    第67回農業機械学会年次大会  2008.3 

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    Venue:Miyazaki  

  • Application of Discrete Element Method to Solve Shaking Separation Mechanisms in Head-Feeding Combine Harvester International conference

    Yamagata, Y., Okayasu, T., Eguchi, H., Sinkai, S., Furuno, Y., Mitsuoka, M., Inoue, E., Imamura, E.

    4th Int. Symp. Mach. Mech. Agr. Biosys. Engng. (ISMAB)  2008.5 

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    Country:Taiwan, Province of China  

  • Computational Mechanical Consideration on Soil Compaction Behavior due to Wheel Traffics after Tillage International conference

    Okayasu, T., Matsuda, H., Furuno, Y., Kamitsuji, N., Mitsuoka, M., Inoue, E., Ueno, M., Fukami, K.

    4th Int. Symp. Mach. Mech. Agr. Biosys. Engng. (ISMAB)  2008.5 

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    Country:Taiwan, Province of China  

  • 自脱型コンバインにおける揺動選別現象の解明に資する数値解析法の開発

    山形友佑,岡安崇史,新開 聡,光岡宗司,井上英二,今村英一

    第63回農業機械学会九州支部例会  2008.8 

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    Venue:Kumamoto  

  • ハイパースペクトルカメラ画像による水稲の生育診断・品質評価に関する研究

    平田真理,岡安崇史,羽田野梨絵,山邉信利,安武隼人,光岡宗司,井上英二

    第63回農業機械学会九州支部例会  2008.8 

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    Venue:Kumamoto  

  • Study on Durability Improvement of the Shallow Tillage Seeding Machine with Cutting Small Ditches International conference

    Fukami, K., Watanabe, T., Tanio, M., Masuda, K., Okayasu, T. Inoue, E., Kamitsuji, N., Ohba, H.

    ISTRO2009  2009.6 

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    Country:Turkey  

  • Numerical Soil Compaction Analysis on Structured Soft Ground International conference

    Okayasu, T., Miyazaki, T., Kamitsuji, N., Mitsuoka, M., Inoue, E., Fukami, K.

    ISTRO2009  2009.6 

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    Country:Turkey  

  • 小明渠作溝用サイドディスク設計への有限要素法の適用とその評価

    大庭裕史,岡安崇史,深見公一郎,上辻直哉,光岡宗司,井上英二

    第64回農業機械学会九州支部  2009.8 

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    Venue:Saga  

  • 簡易型農地環境モニタリングシステムの開発に関する研究

    岡安崇史,平田真理,宮本剛史,山邉信利,安武隼人,光岡宗司,井上英二,平野 修

    第64回農業機械学会九州支部  2009.8 

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    Venue:Saga  

  • 諫早湾干拓地農業における機械作業性の向上のための条件解明と耕うん特性の解析(第1報)干拓土壌におけるトラクタ走行およびロータリ耕うんによる土壌圧縮の解明

    宮嵜朋浩,岡安崇史,山田寧直,川原洋子,小林雅昭,井上英二

    第64回農業機械学会九州支部  2009.8 

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    Venue:Saga  

  • 小明渠浅耕播種機作溝部の耐久性向上に関する研究

    深見公一郎,渡辺輝夫,谷尾昌彦,岡安崇史,井上英二,上辻直哉,大庭裕史

    第64回農業機械学会九州支部  2009.8 

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    Venue:Saga  

  • 土壌踏圧現象の弾塑性有限要素解析に関する研究

    上辻直哉,岡安崇史,宮嵜朋浩,井上英二,光岡宗司,上野正実,深見公一郎

    農業環境工学関連学会2009年合同大会  2009.9 

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    Venue:Tokyo  

  • 3次元個別要素法による自脱コンバイン揺動選別部内の選別現象の可視化と評価

    岡安崇史,山形友佑,新開 聡,井上英二,光岡宗司,今村英一,水島 淳

    農業環境工学関連学会2009年合同大会  2009.9 

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    Venue:Tokyo  

  • 低タンパク米生産のためのハイパースペクトル画像の利用に関する研究

    平田真理,岡安崇史,安武隼人,山邉信利,井上英二,光岡宗司,稲葉繁樹

    農業環境工学関連学会2009年合同大会  2009.9 

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    Venue:Tokyo  

  • 小明渠浅耕播種機の耐久性向上に関する研究 −作溝用サイドディスクの軸受部に作用する力の測定−

    深見 公一郎,渡辺 輝夫,谷尾 昌彦,岡安 崇史,井上 英二,上辻 直哉

    農業環境工学関連学会2009年合同大会  2009.9 

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    Venue:Tokyo  

  • Development of simple field monitoring system for agricultural production and management International conference

    Okayasu, T., Yamabe,N. Mrui, A. Mitsuoka, M., Inoue, E.

    IWABE2009  2009.12 

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    Country:Viet Nam  

  • Tractor Running Tests at Isahaya Bay Reclamation International conference

    Miyazaki, T., Okayasu, T., Inoue, E.

    ISMAB2010  2010.4 

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  • Development of Field Monitoring and Work Recording System in Agriculture International conference

    Okayasu,T., Yamabe, N., Marui, A., Miyazaki, T., Mitsuoka, M., Inoue, E.

    ISMAB2010  2010.4 

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  • 構造・粘着力を有する土の弾塑性構成モデルの提案

    岡安崇史,上辻直哉,村上貴志,宮嵜朋浩,光岡宗司,井上英二

    第69回農業機械学会年次大会  2010.6 

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    Venue:Matuyama  

  • 簡易センサーネットワークを用いた環境情報の収集とその有効利用に関する研究

    岡安崇史,丸居 篤,光岡宗司,井上英二

    第45回地盤工学研究発表会  2010.6 

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    Venue:Matuyama  

  • Soil Compaction Analysis on Structured Cohesive Soft Ground International conference

    Okayasu, T., Kamitsuji, N., Murakami, T., Miyazaki, T., Mitsuoka, M., Inoue, E., Fukami, K.

    9th Asia-Pacific Conference of the ISTVS  2010.9 

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  • CMSを活用した簡易営農支援システムの開発

    岡安崇史,宮嵜朋浩,山邊信利,中野浩平,光岡宗司,井上英二

    第69回農業機械学会年次大会  2010.9 

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    Venue:Matuyama  

  • 構造・粘着力を有する土壌の踏圧現象に関する弾塑性有限要素解析

    岡安崇史,上辻直哉,村上貴志,宮嵜朋浩,深見公一郎,光岡宗司,井上英二

    第69回農業機械学会年次大会  2010.9 

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    Venue:Matuyama  

  • 情報化農業支援システムの開発とその妥当性評価

    吉田博通,南石晃明,加茂正彦,光岡宗司,井上英二

    農業情報学会2011  2011.5 

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    Venue:Tokyo  

  • 三次元有限要素解析による小明渠作溝用サイドディスク軸受部の強度評価

    寺尾悠希,岡安崇史,大庭裕史,深見公一郎,光岡宗司,井上英二

    第66回農業機械学会九州支部  2011.8 

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    Venue:Naha  

  • 情報化農業支援システムを利用した高品質いちご生産システムの開発

    吉田博通,岡安崇史,平野修,小野聖一朗,安部貞昭,清水宣雄,光岡宗司,井上英二

    第66回農業機械学会九州支部  2011.8 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:Naha  

  • Prediction of compaction behavior of heavy clayey soil beneath an off-road vehicle International conference

    Miyazaki, T., Okayasu, T., Inoue, E.

    ASAE2011  2011.8 

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    Country:United States  

  • Feasibility Study on Field Monitoring and Work Recording System in Agriculture International conference

    Okayasu, T., Yoshida, H., Miyazaki, T., Nanseki, T., Mitsuoka, M., Inoue, E.

    ASAE2011  2011.8 

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    Country:United States  

  • 簡易情報化農業支援システムの有効性に関する実証実験

    岡安崇史,吉田博通,光岡宗司,井上英二

    第70回農業機械学会年次大会  2011.9 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:Hirosaki  

  • 小明渠作溝用サイドディスク設計への三次元有限要素法の適用とその評価

    岡安崇史,寺尾悠希,光岡宗司,井上英二,大庭裕史,深見公一郎,渡辺輝夫

    第70回農業機械学会年次大会  2011.9 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:Hirosaki  

  • 個別要素法(DEM)を用いた耕うん現象の予測とその妥当性の評価

    森下健,岡安崇史,光岡宗司,井上英二,深見公一郎

    第70回農業機械学会年次大会  2011.9 

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    Venue:Hirosaki  

  • 三次元個別要素法によるバルク輸送コンテナ内積荷の動的挙動解析

    岡安崇史,井上英二,椎名武夫,中村宣貴,中野浩平

    第70回農業機械学会年次大会  2011.9 

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    Venue:Hirosaki  

  • Monitoring of Hydraulic Gradient in Agricultural Land-use using Grid Wireless Sensor Network International conference

    Soetiarso, L. Goenadi, S., Andri P.N., Okayasu, T.

    International Workshop on ICT in Geo-Engineering  2012.5 

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  • Application of Change Point Analysis for Long-term Environmental Monitoring Data International conference

    Okayasu, T. Mitsuoka, M., Andri P.N., Inoue, E.

    International Workshop on ICT in Geo-Engineering  2012.5 

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  • 情報化農業支援システムを用いた圃場環境情報の可視化とその利活用法の検討

    岡安崇史,アンドリ プリマ ヌグロホ,吉田博通,南石晃明,光岡宗司,井上英二

    2012年度農業情報学会年次大会  2012.5 

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    Venue:Tokyo  

  • Development of intelligent irrigation system for greenhouse International conference

    Okayasu, T., Andri, P.,N., Fushihara, Hirano, O., Yoshida, H., Inoue, E.

    6th Int. Symp. Mach. Mech. Agr. Biosys. Engng. (ISMAB)  2012.6 

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    Country:Korea, Republic of  

  • Strength evaluation of bearing in sidedisk for cutting small ditches by finite element method International conference

    Terao, H., Okayasu, T., Fkuda, K. Fukami, K., Mitsuoka, M., Inoue, E.

    6th Int. Symp. Mach. Mech. Agr. Biosys. Engng. (ISMAB)  2012.6 

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    Country:Korea, Republic of  

  • Modeling and prediction of soil cutting behavior by a plow International conference

    Okayasu, T., Morishita, K., Terao, H., Muneshi, M., Inoue, E., Fukami, K.

    CIGR-AgEng2012  2012.7 

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    Country:Spain  

  • Feasibility Study on Informatization Agricultural Supporting System and Evaluation of its Validity International conference

    Okayasu, T., Yoshida, H., Andri, P.,N., Mitsuoka, M., Inoue, E.

    CIGR-AgEng2012  2012.7 

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    Country:Spain  

  • バングラデシュにおける気象環境情報の連続モニタリングに関する実証実験

    岡安崇史,尾崎彰則,緒方和夫,アシル・アハメッド,宮島郁夫,大杉卓三,井上英二

    農業機械学会九州支部第66回九州支部例会  2012.8 

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    Venue:Miyazaki  

  • Development of field monitoring and intelligent actuating system in agriculture

    Andri P,N., Okayasu, T., Mitsuoka, M., Inoue, E.

    2012.8 

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  • 摩擦接触を考慮した小明渠作溝用サイドディスクの3次元構造解析

    福田稔久,岡安崇史,寺尾悠希,深見公一郎,光岡宗司,井上英二

    農業機械学会九州支部第66回九州支部例会  2012.8 

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    Venue:Miyazaki  

  • 三次元個別要素法による耕うん現象のモデル化とその妥当性の検討

    岡安崇史,森下健,深見 公一郎,光岡 宗司,井上英二

    農業機械学会九州支部第66回九州支部例会  2012.8 

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    Venue:Miyazaki  

  • Development of Intelligent Control System for Greenhouse International conference

    Andri, P.N., Okayasu, T., Fushihara, H., Mitsuoka, M. and Inoue, E.

    AFITA/WCCA2012  2012.9 

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    Country:Taiwan, Province of China  

  • Change Point Analysis for Environmental Information in Agriculture International conference

    Okayasu, T., Mitsuoka, M., Andri, P.N., Yoshida, H., Nanseki, T. and Inoue, E

    AFITA/WCCA2012  2012.9 

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    Country:Taiwan, Province of China  

  • カメラ画像を用いた作物生育情報の抽出とその有効利用に関する研究

    吉田博通,岡安崇史,安部貞昭,光岡宗司,井上英二

    農業環境工学系関連合同大会2012  2012.9 

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    Venue:Utsunomiya  

  • 摩擦接触を考慮したサイドディスク軸受部の構造解析

    寺尾悠希,岡安崇史,福田稔久,深見公一郎,光岡宗司,井上 英二

    農業環境工学系関連合同大会2012  2012.9 

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    Venue:Utsunomiya  

  • 耕うん現象の三次元シミュレーションとその妥当性評価

    岡安崇史,福田稔久,森下 健,深見公一郎,光岡宗司,井上英二

    農業環境工学系関連合同大会2012  2012.9 

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    Venue:Utsunomiya  

  • Utilization of Field Monitoring Information to Agriculture - Potential of Informatization Agriculture in Bangladesh Invited International conference

    Okayasu, T.

    ICEAB2012  2012.11 

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  • Potential of Informatization Agriculture in Bangladesh-Installation and Utilization of Field Monitoring System in Agriculture- International conference

    Ozaki, A., Okayasu, T., Rahman, M.A., Choudhury, D.K., Ogata, K., Miyajima, I., Ahmed, A., Ohsugi, T., Inoue, E.

    ICEAB2012  2012.11 

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  • Development of Actuation Framework for Agricultural Informatization Supporting System

    Andri, N.P., Okayasu, T., Inoue, E., Hirai, Y. and Mitsuoka, M.

    IFAC2013 Bio Robotics Conf.  2013.3 

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  • Soil-tool interaction analysis using fem & dem coupling method Invited International conference

    Takashi Okayasu

    International Seminar Program in Chonbuk National University  2013.5 

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    Country:Korea, Republic of  

  • Development of Web-based Change Point Analysis for Field Environmental Information in Agriculture International conference

    Andri Prima NUGROHO, Takashi OKAYASU, Muneshi MITSUOKA, Eiji INOUE, Lilik SUTIARSO, Yasumaru HIRAI

    International Symposium on Agricultural and Biosystem Engineering 2013  2013.8 

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    Country:Indonesia  

  • Modeling and Prediction of the Mechanical Interaction between Soil and Tillage Tool by DEM International conference

    Takahisa FUKUDA, Takashi OKAYASU, Keita TSUCHIYA, Eiji INOUE, Yasumaru HIRAI, Muneshi MITSUOKA

    11th Int. Conf. Anal. Discontinuous Deformation  2013.8 

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  • 農業におけるソーシャルネットワークサービス活用の可能性の検討 Invited

    岡安崇史,有田大作,アンドリ プリマ ヌグロホ,増山晃史,井上英二,平井康丸,光岡宗司

    第67回農業機械学会九州支部例会  2013.9 

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    Venue:Oita  

  • 3次元個別要素法を用いた小明渠作溝シミュレーションとその精度評価

    福田稔久,土谷肇太,岡安崇史,深見公一郎,井上英二,平井康丸,光岡宗司

    第67回農業機械学会九州支部例会  2013.9 

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    Venue:Oita  

  • FEM-DEM準連成解析による小明渠作溝時のサイドディスク周辺応力の可視化

    岡安崇史, 寺尾悠希, 福田稔久, 土谷肇太, 深見公一郎, 井上英二, 平井康丸, 光岡宗司

    第72回農業食料工学会年次大会  2013.9 

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    Venue:Obihiro  

  • Environmental Change Point Analysis and Its Application to Agriculture,Proceedings of International conference on Instrumentation International conference

    Takashi Okayasu, Andri Prima Nugroho, Daisaku Arita, Akinori Ozaki, Muneshi Mitsuoka, Teruaki Nanseki, Eiji Inoue, Yasumaru Hirai

    Control, Information Technology and System Integration  2013.9 

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  • 3次元個別要素法を用いた耕うんシミュレーションの高速化手法の検討

    福田稔久,岡安崇史,土谷肇太,深見公一郎,井上英二,平井康丸,光岡宗司

    第72回農業食料工学会年次大会  2013.9 

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    Venue:Obihiro  

  • Elastoplastic deformation analysis on ballasted track under repeated loading condition International conference

    Takashi OKAYASU, Katsumi MURAMOTO, Takahisa NAKAMURA

    Workshop on Ballasted Track Maintenance between Japan and the United Kingdom  2013.11 

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  • What is informatization agriculture? International conference

    Takashi Okayasu

    International Symposium on Agricultural, Food, Environmental and Life Sciences in Asia, 2013 (AFELiSA 2013)  2013.11 

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  • Development of Plant Growth Feature Measurement System Using Affordable Devices International conference

    Takashi Okayasu, Atsushige Sakai, Disaku Arita, Takashi Yoshinaga, Rin-ichiro Taniguchi, Eiji Inoue, Yasumaru Hirai, and Muneshi Mitsuoka

    International Symposium on Agricultural, Food, Environmental and Life Sciences in Asia, 2017 (AFELiSA 2017)  2013.11 

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  • Utilization of two SNSs in Japan agriculture Invited International conference

    Takashi Okayasu

    2013 International Symposium on ICT Convergence in the Food and Agriculture  2013.12 

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    Country:Korea, Republic of  

  • 農業におけるセンサーネットワークシステムの活用 Invited

    岡安崇史,有田大作,アンドリ プリマ ヌグロホ,星 岳彦,吉永 崇,井上英二,平井康丸,光岡宗司

    情報処理学会CVIM2015年5月研究会  2014.3 

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    Venue:Tokyo  

  • Agri-sensing for farmer-consumer communication International conference

    Daisaku Arita, Takashi Okayasu, Andri Prima Nuguroho, Takashi Yoshinaga

    Asian Workshop on Smart Sensor Systems  2014.3 

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  • ふたつのSNSによる農と食の見える化 Invited

    有田大作, 岡安崇史, プリマヌグロホアンドリ, 吉永崇

    情報処理学会CVIM2015年5月研究会  2014.3 

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    Venue:Tokyo  

  • Development of soil tillage simulator using fem-dem quasi-coupling method International conference

    Takashi Okayasu, Toshihisa Fukuda, Keita Tsuchiya, Koichiro Fukami, Eiji Inoue, Yasumaru Hirai, Muneshi Mitsuoka

    International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB) 2014  2014.5 

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    Country:Taiwan, Province of China  

  • Effectiveness evaluation on utilization of two snss in japan agriculture International conference

    Takashi Okayasu, Daisaku Arita, Andri Prima Nugroho, Takehiko Hoshi, Takashi Yoshinaga, Eiji Inoue, Yasumaru Hirai, Muneshi Mitsuoka

    International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB) 2014  2014.5 

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    Country:Taiwan, Province of China  

  • 農業情報提供インターフェースとしてのARの活用

    石丸俊介,岡安崇史,吉永崇,有田大作,井上英二,平井康丸,光岡宗司

    2014年度農業情報学会年次大会  2014.5 

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    Venue:Tokyo  

  • Arduino用簡易環境計測シールドの開発とその妥当性の検討

    岡安崇史,アンドリ・プリマ・ヌグロホ,有田大作,星岳彦,安場健一郎,黒崎秀仁,井上英二,平井康丸,光岡宗司

    2014年度農業情報学会年次大会  2014.5 

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    Venue:Tokyo  

  • 農作業履歴収集の電子化とその活用技術の開発

    田中大介,岡安崇史,永尾宏臣,坂井佑輔,粟井一勝,井上英二,平井康丸,光岡宗司

    2014年度農業情報学会年次大会  2014.5 

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    Venue:Tokyo  

  • 3次元耕うんシミュレータの予測精度向上に関する研究

    岡安崇史,福田稔久,土谷肇太, 井上英二,平井康丸,光岡宗司,深見公一郎

    第73回農業食料工学会年次大会  2014.5 

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    Venue:Ginowan  

  • Deployment of agricultural information system – installation and utilization of field monitoring system on agricultural production in Yogyakarta, Indonesia International conference

    2014.6 

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  • 弾性限界面を考慮した下負荷面モデルによるバラストの繰返し負荷挙動の予測

    岡安崇史,村本勝己,中村貴久

    第49回地盤工学研究発表会  2014.7 

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    Venue:Kitakyushu  

  • 農作業履歴収集の電子化と圃場環境モニタリング装置の開発

    田中大介,岡安崇史,井上英二,平井康丸,光岡宗司,永尾宏臣,坂井佑輔,粟井一勝

    第68回農業機械学会九州支部例会  2014.8 

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    Venue:Fukuoka  

  • 農業情報提供のためのARインタフェースの開発

    石丸俊介,岡安崇史,吉永崇,有田大作,井上英二,平井康丸,光岡宗司

    第68回農業機械学会九州支部例会  2014.8 

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    Venue:Fukuoka  

  • 三次元統合解析手法を用いた耕うん作業機性能評価に関する研究

    土谷肇太,岡安崇史,福田稔久,深見公一郎,井上英二,平井康丸,光岡宗司

    第68回農業機械学会九州支部例会  2014.8 

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    Venue:Fukuoka  

  • Elastoplastic deformation behavior for ballast under monotonic and cyclic loading conditions International conference

    Takashi Okayasu, Takahisa Nakamurab, Katsumi Muramoto, Yoshitsugu Momoya

    International Conference on International Society for Terrain-Vehicle Systems  2014.9 

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  • Agricultural information sensing and visualization for farmer-consumer communication International conference

    Daisaku Arita, Takashi Okayasu, Andri Prima Nugroho, Takashi Yoshinaga, Nobushige Doi, Atsushi Shimada, Rin-ichiro Taniguchi

    Joint Workshop on Machine Perception and Robotics  2014.10 

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  • Cyclic elastoplastic deformation analysis on Ballasted railway track Invited International conference

    Takashi OKAYASU, Takahisa NAKAMURA, Katsumi MURAMOTO, Yoshitsugu MOMOYA

    The Second Workshop of Ballasted Track between Japan & the UK Cedar Suite  2014.10 

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  • 圃場環境情報の高密度計測のためのWiFi内蔵ワンボードマイコンの利用

    岡安崇史,堀本正文,アンドリ プリマ ヌグロホ,有田大作,星岳彦,安場健一郎,黒崎秀仁,井上英二,平井康丸,光岡宗司

    2015年度農業情報学会年次大会  2015.5 

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    Venue:Tokyo  

  • RGB-Dセンサを用いた植物体情報の計測とその精度評価

    境 淳成,岡安崇史,吉永 崇,有田大作,北野雅治,井上英二,平井康丸,光岡宗司

    2015年度農業情報学会年次大会  2015.5 

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    Venue:Tokyo  

  • 拡張現実を用いた農業情報提供アプリの開発とその有効性評価

    石丸俊介,岡安崇史,吉永 崇,有田大作,井上英二,平井康丸,光岡宗司

    2015業情報学会年次大会  2015.5 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:Tokyo  

  • RGB-Dセンサを用いた植物体情報の計測とその精度評価

    境 淳成,岡安崇史,吉永 崇,有田大作,北野雅治,井上英二,平井康丸,光岡宗司

    第69回農業食料工学会九州支部例会  2015.8 

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    Venue:Kagoshima  

  • 圃場環境情報の高密度計測のための簡易計測装置の利用

    岡安崇史,アンドリ プリマ ヌグロホ,堀本正文,有田大作,星岳彦,安場健一郎,黒崎秀仁,井上英二,平井康丸,光岡宗司

    農業工学関連学会2015合同大会  2015.9 

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    Venue:Morioka  

  • 葉菜類生産における圃場環境計測システムの利用に関する研究

    田中大介,岡安崇史,井上英二,平井康丸,光岡宗司,島田和子,坂井佑輔,粟井一勝

    農業工学関連学会2015合同大会  2015.9 

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    Venue:Morioka  

  • 拡張現実を用いた農業情報提供システムのユーザビリティ評価

    石丸俊介,岡安崇史,吉永 崇,有田大作,井上英二,平井康丸,光岡宗司

    農業工学関連学会2015合同大会  2015.9 

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    Venue:Morioka  

  • オフロード用タイヤ表面に付着した土の定量評価手法の検討

    佐久間孝人, 岡安崇史,朴チャン,尾辻秀希,阪上最一,神村 真,井上英二, 平井康丸, 光岡宗司

    農業工学関連学会2015合同大会  2015.9 

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    Venue:Morioka  

  • Soil tillage simulation using FEM-DEM quasi-coupling method International conference

    Okayasu, T., Tsuchiya, K., Fukami, K., Inoue, E., Hirai, Y., Mitsuoka, M.

    ISTVS 13th European Conference  2015.10 

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  • Agricultural informatics in Japan -For typical small and medium scale farmers- Invited International conference

    OKAYASU, T.

    THE 11TH INTERNATIONAL WORKSHOP ON NONDESTRUCTIVE QUALITY EVALUATION OF AGRICULTURAL, LIVESTOCK AND FISHERY PRODUCTS  2015.11 

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    Language:English   Presentation type:Oral presentation (invited, special)  

  • 中小規模農家向けのスマート農業支援システムの開発

    岡安崇史,アンドリ プリマ ヌグロホ,石丸俊介,田中大介,境 淳成,入江田大輝,松本千里,有田大作,吉永 崇,堀本正文,谷口倫一郎,井上英二,平井康丸,光岡宗司

    農業情報学会2015年度秋季大会  2015.12 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:Kagoshima  

  • Trials on ICT application for typical small and medium scale farmers in Japan agriculture International conference

    Okayasu, T.

    AWSSS2016  2016.3 

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  • Evaluation of a method to estimate light-intercepting characteristics of a rice hill using a RGB-Depth sensor

    Hirai, T., Nakamura, Y., Sakai, A., Okayasu, T., Inoue, E., Mitsuoka, M.

    8th International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB)  2016.5 

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  • Farmer position estimation in a tomato plant green house with smart devices

    Hashimoto, Y., Arita, D., Shimda, A., Okayasu, T., Uchiyama, H., Taniguchi, R.

    8th International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB)  2016.5 

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  • Effective investigation of 3d feature value extraction for plant body surface using rgb-d sensor

    Sakai, A., Okayasu, T., Yoshinaga, T., Nugroho, A. P., Arita, D., Inoue, E., Hirai, Y., Mitsuoka, M.

    8th International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB)  2016.5 

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  • Automatic leaf motion analysis using optical flow to diagnose plant behavior in response to environmental changes

    Nugroho, A. P., Okayasu, T., Sakai, A., Inoue, E., Hirai, Y., Mitsuoka, M., Sutiarso, L.

    8th International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB)  2016.5 

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  • Plant growth evaluation for leaf vegetables using simple field monitoring system

    Okayasu, T., Tanaka, D., Sakai, A., Sakai, Y., Shimada, K., Awai, K., Inoue, E., Hirai, Y., Mitsuoka, M.

    8th International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB)  2016.5 

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  • UX的手法を用いた消費者向け農業情報提供インタフェースの有効性評価

    石丸俊介,岡安崇史,吉永 崇,有田大作,井上英二,平井康丸,光岡宗司

    2016年度農業情報学会年次大会  2016.5 

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    Venue:東京  

  • オクトコプタを用いた作物生育情報の計測に関する研究

    入江田大輝,岡安崇史,境 淳成,森本 透,冨吉袈裟右衛門,井上英二,平井康丸,光岡宗司

    2016年度農業情報学会年次大会  2016.5 

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    Venue:東京  

  • 日本型中小規模多棟分散園芸施設へのUECSプラットホームの活用

    星 岳彦,安場健一郎,黒崎秀仁,岡安崇史

    2016年度農業情報学会年次大会  2016.5 

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    Venue:東京  

  • タイヤ表面への土の付着特性の計測と評価

    岡安崇史, 佐久間孝人, 阪上最一, 神村 真, 尾辻秀希, 井上英二, 平井康丸, 光岡宗司

    第75回農業食料工学会年次大会  2016.5 

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    Venue:京都  

  • 植物栽培空間の時空間情報計測に関する基礎的研究

    境 淳成,岡安崇史,松本千里,吉永 崇,有田大作,谷口倫一郎,井上 英二,平井康丸,光岡宗司

    第75回農業食料工学会年次大会  2016.5 

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    Venue:京都  

  • 省電力無線方式圃場環境モニタリングシステムの実証実験と課題抽出

    岡安崇史,尾崎彰則,堀本正文,AMIN Nayeen Al,緒方和夫,AHMED Ashir,宮島郁夫,伊東正一,井上英二,平井康丸,光岡宗司

    第70回農業食料工学会九州支部例会  2016.9 

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    Venue:福岡  

  • Smart Agriculture Framework and Its Implementation to Open-Field Tropical Horticulture Production

    Andri Prima Nugroho, Takashi Okayasu, Eiji Inoue, Yasumaru Hirai, Muneshi Mitsuoka, Lilik Sutiarso

    2016.9 

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  • Measurement and Visualization of Agricultural Information by Using ICT International conference

    Takashi OKAYASU

    2016.11 

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    Country:Australia  

  • RGB―D画像を用いた植物生育特徴量の計測とその精度評価

    境 淳成,岡安 崇史,吉永 崇,有田 大作,谷口 倫一郎,井上 英二,平井 康丸,光岡 宗司

    2017年度農業情報学会年次大会  2017.5 

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    Venue:東京  

  • IT: an enabling technology for small- and medium-scale farmers in Japan Invited International conference

    Takashi OKAYASU

    Conference on Smart Agriculture for Sustainable, Inclusive Productivity  2017.9 

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  • 下負荷面モデルによる粒状体の繰返し負荷挙動予測の高精度化

    岡安崇史, 片山優海, 井上英二, 平井康丸, 光岡宗司

    第76回農業食料工学会年次大会  2017.9 

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    Venue:東京  

  • 圃場環境・植物生体計測のための小型移動ロボットの開発

    岡安崇史,高場雄太郎,谷口倫一郎,井上英二,平井康丸,光岡宗司,有田大作,吉永 崇

    第76回農業食料工学会年次大会  2017.9 

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    Venue:東京  

  • UECS方式簡易グロースチャンバを用いた植物体の生育特徴量計測

    最上雄介,岡安崇史,黒崎秀仁,星岳彦,安場健一郎,井上英二,平井康丸,光岡宗司

    第71回農業食料工学会九州支部例会  2017.9 

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    Venue:佐賀  

  • 農業情報の可視化・共有のための仮想現実技術の応用

    高場雄太郎,岡安崇史,吉永 崇,有田大作,谷口倫一郎,安武大輔,北野雅治,井上英二,平井康丸,光岡宗司

    第71回農業食料工学会九州支部例会  2017.9 

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    Venue:佐賀  

  • FAB×農業はおもしろい!中小規模施設園芸を変える次の戦略 Invited

    岡安崇史

    第71回農業食料工学会九州支部例会  2017.9 

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    Venue:佐賀  

  • ICT Application in Agriculture with Affordable Sensors and Devices Invited International conference

    Takashi Okayasu

    2nd International Conference on Tropical Agriculture  2017.10 

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    Country:Indonesia  

  • Identification and Evaluation of Bacterial Leaf Blight on Rice Field Using Hyperspectral Imaging International conference

    Muhammad Naufal Rauf Ibrahim, Takashi Okayasu, Atsushi Yoshimura, Yoshiyuki Yamagata, Naruto Furuya, Eiji Inoue, Yasumasu Hirai, Muneshi Mitsuoka

    International Symposium on Agricultural, Food, Environmental and Life Sciences in Asia, 2017 (AFELiSA 2017)  2017.11 

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  • Affordable Field Environmental Monitoring and Plant Growth Measurement System for Smart Agriculture International conference

    Takashi Okayasu, Andri Prima Nugroho, Atsushige Sakai, Disaku Arita, Takashi Yoshinaga, Rin-ichiro Taniguchi, Masafumi Horimoto, Eiji Inoue, Yasumaru Hirai, and Muneshi Mitsuoka

    International Symposium on Agricultural, Food, Environmental and Life Sciences in Asia, 2017 (AFELiSA 2017)  2017.12 

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    Country:Australia  

  • Sensing Technologies for Advanced Smart Agricultural Systems International conference

    Hideaki Uchiyama, Shunsuke Sakurai, Toshiki Hashimoto and Atsutoshi Hanasaki, Daisaku Arita, Takashi Okayasu, Atsushi Shimada and Rin-ichiro Taniguchi

    International Symposium on Agricultural, Food, Environmental and Life Sciences in Asia, 2017 (AFELiSA 2017)  2017.12 

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    Country:Australia  

  • 近未来の日本農業に必要なセンシング技術を考える Invited

    岡安崇史

    第7回超異分野学会  2018.3 

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    Venue:東京  

  • 中小規模農家のためのスマート農業を創造する

    岡安崇史

    第7回超異分野学会  2018.3 

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    Venue:東京  

  • スマート農業の現状とこれから Invited

    岡安崇史

    第2回農工連携シンポジウム  2018.3 

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    Venue:福岡  

  • RGB-Dカメラと複数波長LEDを用いた植物形状・分光画像計測技術の開発

    岡安崇史,高橋秀平,伊藤次郎,長浜義典,井上英二,平井廉丸,光岡宗司

    2021年度農業情報学会年次大会  2021.5 

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    Event date: 2021.5

    Presentation type:Oral presentation (general)  

    Venue:Online   Country:Japan  

  • 長期・安定運用が可能な植物フェノタイピングロボット

    伊藤次郎,岡安崇史,安武大輔,野村浩一,尾崎行生,井上英二,平井康丸

    2021年度農業情報学会年次大会  2021.5 

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    Event date: 2021.5

    Presentation type:Oral presentation (general)  

    Venue:Online   Country:Japan  

  • 植物形質の時空間計測における各種RGB-Dセンサの利用と性能評価

    伊藤次郎,岡安崇史,安武大輔,野村浩一,岩尾忠重,尾崎行生,井上英二,平井康丸

    2021年度農業情報学会年次大会  2021.5 

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    Event date: 2021.5

    Presentation type:Oral presentation (general)  

    Venue:Online   Country:Japan  

  • Accuracy Evaluation of Self-position Estimation and Mapping Method for Farm Supporting Robot in Greenhouse

    Sadam A, A.M., Okayasu, T., Inoue, E., Hirai, Y.

    Annual Meeting of Japanese Society of Agricultural Informatics 2021  2021.5 

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    Event date: 2021.5

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Navigation System Based on Object Tracking for Assisting Robot Operation in Greenhouse

    Sadam A, S.M. Widodo, S., Okayasu, T., Inoue, E., Hirai, Y.

    1st Japan, Thailand and Indonesia Joint Seminar on Sustainable Agricultural Development Goals (SADGs) 2021  2021.3 

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    Event date: 2021.3

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • Development of low cost plant phenotyping platform and spatio-temporal measurement of plant growth using RGB-D sensors

    Ito, J., Okayasu, T., Yasutake, D., Inoue, E., Hirai, Y., Ozaki, Y.

    1st Japan, Thailand and Indonesia Joint Seminar on Sustainable Agricultural Development Goals (SADGs) 2021  2021.3 

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    Event date: 2021.3

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 低コスト植物フェノタイピングプラットフォームを用いたホウレンソウの生育計測

    伊藤次郎,岡安崇史,野村浩一,安武大輔,岩尾忠重,尾崎行生,井上英二,平井康丸, 光岡宗司

    2020年度農業情報学会年次大会  2020.5 

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    Event date: 2020.5

    Presentation type:Oral presentation (general)  

    Venue:Online   Country:Japan  

  • 低コストIoTデバイスを用いた植物フェノタイピングプラットフォームの開発

    伊藤次郎,岡安崇史,野村浩一,安武大輔,岩尾忠重,尾崎行生,井上英二,平井康丸, 光岡宗司:

    2020年度農業情報学会年次大会  2020.5 

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    Presentation type:Oral presentation (general)  

    Venue:Online   Country:Japan  

  • 画像から抽出した生育特徴量を用いたイチゴの生育評価の妥当性の検討

    室田涼輔 ,岡安崇史,田川 愛,政井隆之,田中泰洋.井上英二,平井康丸,光岡宗司

    2020年度農業情報学会年次大会  2020.5 

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    Presentation type:Oral presentation (general)  

    Venue:Online   Country:Japan  

  • 画像情報を用いた植物生育特徴量の計測と利用 Invited

    岡安崇史,伊藤次郎,野村浩一,安武大輔,政井隆之,田中泰洋,岩尾忠重,尾崎行生,有田大作

    2020年電子情報通信学会総合大会  2020.3 

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:広島   Country:Japan  

  • コンバインのグレンタンクに堆積した籾層の底面圧力の推定

    井上 真大朗, 平井 康丸, 井上 英二, 岡安 崇史, 光岡 宗司

    第73回農業食料工学会九州支部例会  2019.11 

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    Event date: 2019.11

    Presentation type:Oral presentation (general)  

    Venue:春日市   Country:Japan  

  • Fabとオープンソースを活用した植物フェノタイピングシステムの開発

    岡安崇史, 有田大作, 安武大輔, 黒崎秀仁, 井上英二, 平井康丸, 光岡宗司

    第73回農業食料工学会九州支部例会  2019.11 

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    Event date: 2019.11

    Presentation type:Oral presentation (general)  

    Venue:春日市   Country:Japan  

  • Accuracy Evaluation of Low-cost Weight Measurement Sensor for Plants

    Hamidah, A., Okayasu, T., Hoshino, Y., Inoue, E., Hirai, Y., Mitsuoka, M., Nugroho, A.P., Sutiarso, L.

    2019.11 

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    Event date: 2019.11

    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 葉菜類を対象としたフェノタイピングシステムの開発とその性能評価に関する研究

    伊藤次郎,岡安崇史,長浜義典,野村浩一,安武大輔,岩尾忠重,尾崎行生,井上英二,平井康丸,光岡宗司

    第73回農業食料工学会九州支部例会  2019.11 

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    Presentation type:Oral presentation (general)  

    Venue:春日市   Country:Japan  

  • 乗用トラクタの作業機位置による周波数応答の実験的解析

    山田剛巳, 井上英二, 光岡宗司, 岡安崇史, 平井康丸

    第73回農業食料工学会九州支部例会  2019.11 

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    Event date: 2019.11

    Presentation type:Oral presentation (general)  

    Venue:春日市   Country:Japan  

  • 心拍変動解析によるトラクタ操縦者のストレスレベル評価に関する基礎的研究

    森本倫太郎, 井上英二, 光岡宗司, 岡安崇史, 平井康丸

    第73回農業食料工学会九州支部例会  2019.11 

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    Presentation type:Oral presentation (general)  

    Venue:春日市   Country:Japan  

  • ロータリ耕うんにおける土壌条件の違いによる作業機の振動データと耕うん砕土に関する研究

    諸隈賢吾, 井上英二, 光岡宗司, 岡安崇史, 平井康丸

    第73回農業食料工学会九州支部例会  2019.11 

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    Event date: 2019.11

    Presentation type:Oral presentation (general)  

    Venue:春日市   Country:Japan  

  • Stereo-camera installation configuration to improve accuracy of 3D ground reconstruction for tractor rollover prediction

    Shin, S., Mitsuoka, M., Inoue, E., Okayasu, T., Hirai, Y., Matsui M.

    2019.11 

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    Presentation type:Oral presentation (general)  

    Country:Japan  

  • 弾性梁と質点の連結モデルによるこぎ歯作用時の穂の挙動解析

    古川 大二郎, 平井 康丸, 樫野 雅和, 井上 英二, 岡安 崇史, 光岡 宗司

    第73回農業食料工学会九州支部例会  2019.11 

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    Presentation type:Oral presentation (general)  

    Venue:春日市   Country:Japan  

  • 2つのロードセル荷重を用いた場合のコンバイングレンタンク内の籾質量検量式の精度評価

    樫野 雅和, 平井 康丸, 井上 英二, 岡安 崇史, 光岡 宗司

    第73回農業食料工学会九州支部例会  2019.11 

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    Presentation type:Oral presentation (general)  

    Venue:春日市   Country:Japan  

  • Integrated contextual learning environments with sensor network for crop cultivation education Concept and design

    Rin Ichiro Taniguchi, Daisaku Arita, Atsushi Shimada, Masanori Yamada, Yoshiko Goda, Ryota Yamamoto, Takashi Okayasu

    16th International Conference on Cognition and Exploratory Learning in Digital Age, CELDA 2019  2019.1 

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    Event date: 2019.11

    Language:English  

    Country:Italy  

  • Smart Agriculture Utilizing Affordable IoT Devices Invited

    Okayasu T.

    International Symposium on Agriculture, Food, Environmental and Life Science in Asia 2019  2019.11 

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    Event date: 2019.11

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  • Effects of unflooded periods and growth stage on nitrogen mineralization of green manure (hairy vetch) under flooded conditions

    Ko, K. M. M. , Hirai Y. , Yamakawa, T. , Inoue, E., Okayasu, T., Mitsuoka, M.

    International Symposium on Agriculture, Food, Environmental and Life Science in Asia 2019  2019.11 

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    Event date: 2019.11

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Appropriate adaptation of precision agriculture technology in open field cultivation in tropics

    A. P. Nugroho, L. Sutiarso, T. Okayasu

    3rd International Symposium on Agricultural and Biosystem Engineering, ISABE 2019  2019.11 

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    Event date: 2019.8

    Language:English  

    Country:Indonesia  

  • Development of environmental monitoring systems based on LoRa with cloud integration for rural area

    M. S. Hidayat, A. P. Nugroho, L. Sutiarso, T. Okayasu

    3rd International Symposium on Agricultural and Biosystem Engineering, ISABE 2019  2019.11 

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    Event date: 2019.8

    Language:English  

    Country:Indonesia  

  • Crop growth prediction model at vegetative phase to support the precision agriculture application in plant factory

    Aulia Rizkiana, Andri Prima Nugroho, Muhammad Abiyyu Irfan, Lilik Sutiarso, Takashi Okayasu

    International Conference on Science and Applied Science 2019, ICSAS 2019  2019.12 

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    Event date: 2019.7

    Language:English  

    Country:Indonesia  

  • Implementation of leaf motion monitoring system to study plant behavior with variations of the lighting interval in Capsicum annuum L.

    Siti Maghfiroh, Andri Prima Nugroho, Adetya Raya Putra, Lilik Sutiarso, Takashi Okayasu

    International Conference on Science and Applied Science 2019, ICSAS 2019  2019.12 

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    Event date: 2019.7

    Language:English  

    Country:Indonesia  

  • Development of mobile RoboVision with stereo camera for automatic crop growth monitoring in plant factory

    Anggit Wijanarko, Andri Prima Nugroho, Lilik Sutiarso, Takashi Okayasu

    International Conference on Science and Applied Science 2019, ICSAS 2019  2019.12 

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    Event date: 2019.7

    Language:English  

    Country:Indonesia  

  • Design and performance evaluation of multi-camera for continuous plant motion monitoring system

    Dian Fatmawati, Andri Prima Nugroho, Arifin Widiyatmoko, Lilik Sutiarso, Takashi Okayasu

    International Conference on Science and Applied Science 2019, ICSAS 2019  2019.12 

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    Event date: 2019.7

    Language:English  

    Country:Indonesia  

  • Heat storage induced by salinity stratification in tropical saline aquaculture ponds

    Akinori Ozaki, Panitan Kaewjantawee, Monton Anongponyoskul, Nguyen Van Thinh, Masaru Matsumoto, Masayoshi Harada, Kunihiko Hamagami, Takashi Okayasu

    2019 ASABE Annual International Meeting  2019.1 

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    Event date: 2019.7

    Language:English  

    Country:United States  

  • Heat storage induced by salinity stratification in tropical saline aquaculture ponds

    Akinori Ozaki, Panitan Kaewjantawee, Monton Anongponyoskul, Nguyen Van Thinh, Masaru Matsumoto, Masayoshi Harada, Kunihiko Hamagami, Takashi Okayasu

    2019 ASABE Annual International Meeting  2019.1 

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    Event date: 2019.7

    Language:English  

    Country:United States  

  • Affordable field environmental monitoring and plant growth measurement system for smart agriculture

    Takashi Okayasu, Andri Prima Nugroho, Atsushige Sakai, Disaku Arita, Takashi Yoshinaga, Rin-Ichiro Taniguchi, Masafumi Horimoto, Eiji Inoue, Hirai Yasumaru, Mitsuoka Muneshi

    11th International Conference on Sensing Technology, ICST 2017  2018.2 

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    Event date: 2017.12

    Language:English  

    Country:Australia  

  • Sensing technologies for advanced smart agricultural systems

    Hideaki Uchiyama, Shunsuke Sakurai, Yoshiki Hashimoto, Atsutoshi Hanasaki, Daisaku Arita, Takashi Okayasu, Atsushi Shimada, Rin-Ichiro Taniguchi

    11th International Conference on Sensing Technology, ICST 2017  2018.2 

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    Event date: 2017.12

    Language:English  

    Country:Australia  

  • An Easy-to-Setup 3D Phenotyping Platform for KOMATSUNA Dataset

    Hideaki Uchiyama, Shunsuke Sakurai, Masashi Mishima, Daisaku Arita, Takashi Okayasu, Atsushi Shimada, Rin-Ichiro Taniguchi

    16th IEEE International Conference on Computer Vision Workshops, ICCVW 2017  2018.1 

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    Event date: 2017.10

    Language:English  

    Country:Italy  

  • コンバインの移動軌跡に基づく集荷穀物に対応した収穫面積の自動計算手法

    平井康丸, 緒方聖大, 鹿内健志, 井上英二, 岡安崇史, 光岡宗司

    農業食料工学会年次大会講演要旨  2017.9 

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    Language:Japanese  

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  • 水稲籾のかさ密度と登熟の関係

    吉嵜隆一, 平井康丸, 井上英二, 岡安崇史, 光岡宗司, 鹿内健志

    農業食料工学会年次大会講演要旨  2017.9 

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    Language:Japanese  

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  • UECS方式簡易グロースチャンバを用いた植物体の生育特徴量計測

    最上雄介, 岡安崇史, 黒崎秀仁, 星岳彦, 安場健一郎, 井上英二, 平井康丸, 光岡宗司

    九州農業試験研究機関協議会研究発表会発表要旨集(Web)  2017 

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  • ICT application for typical small- and medium-scale farmers in Japan Agriculture Invited

    Conference on State-of-the-Art Technology to Drive Agriculture Productivity in the Next Quarter of the Century  2016.6 

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    Event date: 2016.6

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • 暖地輪作体系における乾田直播圃場の透水性制御技術に関する研究―振動ローラ鎮圧が水稲の生育・収量に及ぼす影響の解明―

    深見公一郎, 中野恵子, 椋木俊文, 稲葉繁樹, 松尾直樹, 土屋史紀, 佐々木豊, 岡安崇史

    農業食料工学会年次大会講演要旨  2016.5 

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    Language:Japanese  

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  • Elastoplastic deformation behavior for ballast under monotonic and cyclic loading conditions

    Takashi Okayasu, Takahisa Nakamura, Katsumi Muramoto, Yoshitsugu Momoya

    18th International Conference of the International Society for Terrain-Vehicle Systems, ISTVS 2014  2014.1 

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    Event date: 2014.9

    Language:English  

    Country:Korea, Republic of  

  • パターン認識を用いた水稲の収量・タンパク質含有率予測モデル

    平井康丸, 山川武夫, 森裕樹, 南石晃明, 井上英二, 岡安崇史, 光岡宗司

    日本土壌肥料学会講演要旨集  2014.9 

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    Language:Japanese  

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  • ローラ鎮圧による暖地乾田直播圃場の漏水防止技術―X線CT画像に基づく鎮圧土壌の構造解析―

    深見公一郎, 椋木俊文, 中野恵子, 松尾直樹, 岡安崇史, 広間達夫, 土屋史紀, 佐々木豊

    九州農業研究発表会専門部会発表要旨集  2014.8 

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    Language:Japanese  

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  • 三次元統合解析手法を用いた耕うん作業機性能評価に関する研究

    土谷肇太, 岡安崇史, 福田稔久, 深見公一郎, 井上英二, 平井康丸, 光岡宗司

    九州農業研究発表会専門部会発表要旨集  2014.8 

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  • 3次元耕うんシミュレータの予測精度向上に関する研究

    岡安崇史, 福田稔久, 土谷肇太, 井上英二, 平井康丸, 光岡宗司, 深見公一郎

    農業食料工学会年次大会講演要旨  2014.5 

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    Language:Japanese  

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  • 暖地輪作体系における乾田直播圃場の透水性制御技術に関する研究―ローラ鎮圧作業に及ぼす土壌水分の影響―

    深見公一郎, 中野恵子, 松尾直樹, 土屋史紀, 佐々木豊, 椋木俊文, 岡安崇史, 広間達夫

    農業食料工学会年次大会講演要旨  2014.5 

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  • 7-1-6 パターン認識を用いた水稲の収量・タンパク質含有率予測モデル(7-1 肥料および施肥法,2014年度東京大会)

    平井 康丸, 山川 武夫, 森 裕樹, 南石 晃明, 井上 英二, 岡安 崇史, 光岡 宗司

    日土肥講要  2014  一般社団法人 日本土壌肥料学会

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    Language:Japanese  

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  • Environmental change point analysis and its application to agriculture

    Takashi Okayasu, Andri Prima Nugroho, Daisaku Arita, Akinori Ozaki, Mitsuoka Muneshi, Teruaki Nanseki, Eiji Inoue, Hirai Yasumaru

    2013 52nd Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2013  2013.1 

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    Event date: 2013.9

    Language:English  

    Country:Japan  

  • Environmental change point analysis and its application to agriculture

    Takashi Okayasu, Andri Prima Nugroho, Daisaku Arita, Akinori Ozaki, Mitsuoka Muneshi, Teruaki Nanseki, Eiji Inoue, Hirai Yasumaru

    2013 52nd Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2013  2013.1 

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    Event date: 2013.9

    Language:English  

    Country:Japan  

  • 3次元個別要素法を用いた耕うんシミュレーションの高速化手法の検討

    福田稔久, 岡安崇史, 土谷肇太, 深見公一郎, 井上英二, 平井康丸, 光岡宗司

    農業食料工学会年次大会講演要旨  2013.9 

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    Language:Japanese  

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  • 水稲乾田直播栽培における振動ローラ加速度応答に基づく圃場透水性制御技術

    深見公一郎, 中野恵子, 松尾直樹, 土屋史紀, 佐々木豊, 椋木俊文, 岡安崇史, 広間達夫

    農業食料工学会年次大会講演要旨  2013.9 

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  • FEM‐DEM準連成解析による小明渠作溝時のサイドディスク周辺応力の可視化

    岡安崇史, 寺尾悠希, 福田稔久, 土谷肇太, 深見公一郎, 井上英二, 平井康丸, 光岡宗司

    農業食料工学会年次大会講演要旨  2013.9 

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  • Modeling and prediction of the mechanical interaction between soil and tillage tool by DEM

    T. Fukuda, Takashi Okayasu, K. Tsuchiya, Eiji Inoue, Hirai Yasumaru, Mitsuoka Muneshi, H. Terao

    11th International Conference on Analysis of Discontinuous Deformation, ICADD 2013  2013.10 

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    Event date: 2013.8

    Language:English  

    Country:Japan  

  • Modeling and prediction of the mechanical interaction between soil and tillage tool by DEM

    T. Fukuda, Takashi Okayasu, K. Tsuchiya, Eiji Inoue, Hirai Yasumaru, Mitsuoka Muneshi, H. Terao

    11th International Conference on Analysis of Discontinuous Deformation, ICADD 2013  2013.10 

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    Language:English  

    Country:Japan  

  • 3次元個別要素法を用いた小明渠作溝シミュレーションとその精度評価

    福田稔久, 土谷肇太, 岡安崇史, 深見公一郎, 井上英二, 平井康丸, 光岡宗司

    九州農業研究発表会専門部会発表要旨集  2013.8 

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  • 振動式鎮圧ローラによる暖地乾田直播圃場の漏水防止技術―振動ローラの改良と最適な土壌水分条件の解明―

    深見公一郎, 中野恵子, 松尾直樹, 土屋史紀, 佐々木豊, 椋木俊文, 岡安崇史, 広間達夫

    九州農業研究発表会専門部会発表要旨集  2013.8 

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    Language:Japanese  

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  • Study on knowledge management platform about the field of agricultural infomatization

    Eiji Aoki, Ken Kudo, Akira Fukuda, Tsuneo Nakanishi, Shigeaki Tagashira, Takashi Okayasu, Naoyuki Tsuruda, Satoru Yamasaki, Yasuhito Imura

    2012 6th International Conference on Complex, Intelligent, and Software Intensive Systems, CISIS 2012  2012.7 

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    Event date: 2012.7

    Language:English  

    Country:Italy  

  • Modeling of soil displacement and soil strain distribution under the traveling wheel

    Khwantri Saengprachatanarug, Masami Ueno, Eizo Taira, Takashi Okayasu

    17th International Conference of the International Society for Terrain Vehicle Systems 2011, ISTVS 2011  2011.11 

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    Event date: 2011.11

    Language:English  

    Country:United States  

  • Feasibility study on field monitoring and work recording system in agriculture

    Takashi Okayasu, Hiromichi Yoshida, Tomohiro Miyazaki, Teruaki Nanseki, Mitsuoka Muneshi, Eiji Inoue

    American Society of Agricultural and Biological Engineers Annual International Meeting 2011  2011.8 

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    Event date: 2011.8

    Language:English  

    Country:United States  

  • Prediction of compaction behavior of heavy clayey soil beneath an off-road vehicle

    Tomohiro Miyazaki, Takashi Okayasu, Eiji Inoue

    American Society of Agricultural and Biological Engineers Annual International Meeting 2011  2011.8 

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    Event date: 2011.8

    Language:English  

    Country:United States  

  • Drucker‐Pragerモデルと下負荷面モデルによる土壌変形の予測特性の比較

    橋口公一, 斉藤公志郎, 岡安崇史, 堤成一郎

    農業機械学会年次大会講演要旨  2000.4 

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    Event date: 2000.4

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  • 車輪走行に伴う地盤変形の弾塑性有限要素解析

    岡安崇史, 橋口公一, 池末英二, 堤成一郎, 上野正実, 鹿内健志

    農業機械学会年次大会講演要旨  2000.4  農業食料工学会

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  • 車輪の走行性能に及ぼす繰り返し走行の影響

    上野正実, 深見公一郎, 鹿内健志, 橋口公一, 岡安崇史

    農業機械学会年次大会講演要旨  2000.4 

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  • 車輪の繰り返し走行に伴う土の変形プロセス

    上野正実, 深見公一郎, 鹿内健志, 橋口公一, 岡安崇史

    農業機械学会年次大会講演要旨  2000.4 

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  • 走行車輪下の不均一な土壌変形とけん引力の変動

    上野正実, 深見公一郎, 鹿内健志, 橋口公一, 岡安崇史

    農業機械学会年次大会講演要旨  2000.4 

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  • 接線応力速度を考慮した非弾性構成式

    橋口公一, 堤成一郎, 岡安崇史, 斎藤公志郎, 杉本昌也

    農業機械学会年次大会講演要旨  2000.4  農業食料工学会

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  • 弾塑性学入門者を対象としたインターネット教材の開発 JavaによるインタラクティブWebコンテンツの開発

    岡安崇史, 橋口公一, 堤成一郎, 岩永真由美, 永島玲子

    農業機械学会年次大会講演要旨  2000.4  農業食料工学会

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  • Precise measurement of soil deformation and fluctuation in drawbar pull for steel and rubber-coated rigid wheels

    T Shikanai, K Hashiguchi, Y Nohse, M Ueno, T Okayasu

    JOURNAL OF TERRAMECHANICS  2000.1  PERGAMON-ELSEVIER SCIENCE LTD

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    Event date: 2000.1

    Language:English  

    The travelling performance of rigid wheels on sand stratum is measured using two kinds of surface material, i.e. steel and steel coated with rubber. A new method for measuring the displacement of soil beneath the wheel has been developed using small polyester him markers. The trajectories of soil particles beneath the wheels are approximated by an exponential function and the fluctuations in the drawbar pull are represented by a sinusoidal function. The amplitude and basic wavelength of the fluctuation in the drawbar pull are discussed for both types of wheels. (C) 2000 ISTVS. All rights reserved.

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  • Analysis of soil deformation beneath a wheel in the repetition travel

    Fukami, K, Ueno, M, Hashiguchi, K, Okayasu, T

    Proc. CIGR2000  2000 

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  • Shear band analysis in soils by elastoplastic constitutive equation with tangential stress rate effect

    Hashiguchi, K, Tsutsumi, S, Okayasu, T, Saitoh, K

    Proc. Int. Symp. Plasticity 2000 (Proc. Eighth Int. Symp. Plasticity and Its Current Applications  2000 

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  • Fluctuation of the drawbar pull of a wheel due to the inhomogeneous soil deformation

    K Fukami, M Ueno, K Hashiguchi, T Okayasu

    PROCEEDINGS OF THE INTERNATIONAL AGRICULTURAL ENGINEERING CONFERENCE  2000  ASIAN INST TECHNOLOGY

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    Drawbar pull of a traveling wheel varies with certain amplitude in the stationary state, even though the speed of it is so slow that the inertia force is negligible. Averaged values of the mechanical quantities are used as characteristic values of traveling performance, and such fluctuation is usually neglected. The properties of fluctuation had been mechanically examined by authors in the previous studies. The purpose of this study was to clarify the cause of it from a view point of soil deformation under the wheel. A close relation between the settlement and the drawbar pull was made clear by using waveform analysis. Volumetric strain and shear strain remained after traveling showed similar distribution patterns, which meant that the remarkable dilatancy occurred. Negative correlation was observed between the positive shear strain increment and the drawbar pull increment. In addition, frequency components of it and the positive shear strain increment agreed with very well. The increase and decrease of positive shear strain which was the uneven soil deformation caused the fluctuation of the drawbar pull.

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  • Deformation behavior of shallow foundation beneath footing subjected to cyclic load

    Okayasu, T, Hashiguchi, K, Tsutsumi, S

    Proc. Int. Symp. Plasticity 2000 (Proc. Eighth Int. Symp. Plasticity and Its Current Applications)  2000 

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  • Comparison of Drucker-Prager’s and subloading surface models for prediction of soil deformation behavior

    Hashiguchi K, Saitoh K, Okayasu T, Tsutsumi S

    Proc. Int. Symp. Plasticity 2000 (Proc. Eighth Int. Symp. Plasticity and Its Current Applications)  2000 

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  • The soil‐water coupled finite element analysis with the extended subloading surface model.

    橋口公一, 岡安崇史, 堤成一郎

    地盤工学研究発表会発表講演集  1999.6 

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  • Inelastic Constitutive Equation with Tangential Stress Rate Effect.

    橋口公一, 堤成一郎, 岡安崇史

    地盤工学研究発表会発表講演集  1999.6 

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  • 剛性車輪のけん引力などの変動と土の変形に関する解析

    上野正実, 深見公一郎, 橋口公一, 岡安崇史

    農業機械学会年次大会講演要旨  1999.4 

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  • 繰返し転圧を受ける耕盤圃場の土壌固結防止に関する研究 車輪のすべりと土壌間隙比などの効果

    橋口公一, 岡安崇史, 上野正実, 深見公一郎

    農業機械学会年次大会講演要旨  1999.4 

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  • 繰返し負荷を受ける地盤の土‐水連成有限変形解析

    橋口公一, 岡安崇史, 川崎若, 堤成一郎

    農業機械学会年次大会講演要旨  1999.4  農業食料工学会

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  • 接線応力速度効果を持つ下負荷面モデルの提案 土のせん断変形解析への適用

    橋口公一, 堤成一郎, 岡安崇史

    農業機械学会年次大会講演要旨  1999.4  農業食料工学会

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  • Time-dependent constitutive equation of soil

    Hashiguchi, K, Wu, X, Okayasu, T

    Proc. Int. Symp. Plasticity '99 (Proc. 7th Int. Symp. Plasticity &amp; its Current Appl.  1999 

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    Event date: 1999

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  • Soil deformation simulation by water - soil linkage elasto-plasticity FEM.

    橋口公一, 岡安崇史, 友山隆広, 堤成一郎, 上野正実, 鹿内健志

    農業機械学会年次大会講演要旨  1998.4  農業食料工学会

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    Event date: 1998.4

    Language:Japanese  

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  • Waveform analysis of fluctuation in tractive force of wheels.

    上野正実, 鹿内健志, 深見公一郎, 大嶺政朗, 橋口公一, 岡安崇史

    農業機械学会年次大会講演要旨  1998.4 

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    Event date: 1998.4

    Language:Japanese  

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  • Research on high-precision prediction of runnability of rigid wheels in sandy ground.

    上野正実, 鹿内健志, 大嶺政朗, 深見公一郎, 橋口公一, 岡安崇史

    農業機械学会年次大会講演要旨  1998.4 

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    Language:Japanese  

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  • Precise prediction of the traveling performance for a rigid wheel

    Ueno, M, Oomine, M, Shikanai, T, Hashiguchi, K, Okayasu, T

    Proc. 5th Asia-Pacific Reg. Conf. Terrain Vechicle Systems  1998 

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    Event date: 1998

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  • Waveform analysis of drawbarpull of a rigid wheel by FFT

    Ueno, M, Fukami, K, Shikanai, T, Hashiguchi, K, Okayasu, T

    Proc. 5th Asia-Pacific Reg. Conf. Terrain Vechicle Systems  1998 

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  • Soil deformation beneath a rigid wheel

    Ueno, M, Shikanai, T, Okayasu, T, Hashiguchi, K, Nohse, Y, Gotoh, M, Uchiyama, K

    Proc. 4th Asia-Pacific Regional Conf. Terrain Vechicle Systems  1995 

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    Event date: 1995

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  • Walking motion of the soil reaction on a whee

    Ueno, M, Shikanai, T, Okayasu, T, Hashiguchi, K, Nohse, Y, Gotoh, M, Uchiyama, K

    Proc. 4th Asia-Pacific Regional Conf. Terrain Vechicle Systems  1995 

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    Event date: 1995

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  • 農業機械の振動時系列データを用いた密度比推定による変化検知

    光岡宗司, 井上英二, 岡安崇史, 平井康丸

    農業環境工学関連学会2018年合同大会  2018.9 

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    Venue:Ehime  

  • 籾の堆積状態がグレンタンクの支持荷重および籾質量の推定精度に及ぼす影響

    平井康丸, 古川大二郎, 吉嵜隆一, 樫野雅和, 上加郁朗, 光岡宗司, 井上英二, 岡安崇史

    農業環境工学関連学会2018年合同大会  2018.9 

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    Venue:Ehime  

  • グレンタンクに堆積した籾の空隙率と底面圧力の関係

    吉嵜隆一, 平井康丸, 上加郁朗, 古川大二郎, 樫野雅和, 光岡宗司, 稲垣紫緒, 井上英二, 岡安 崇史

    農業環境工学関連学会2018年合同大会  2018.9 

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    Venue:Ehime  

  • 3-Dimensional Reconstruction of Traveling Terrain and Prediction of Rollover Risk of Agricultural Machinery

    2018.9 

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  • Development of Plant Monitoring using Pan Tilt Zoom Camera for Smart Agriculture and Verification of Its Validity

    Annual meeting of Japanese Society of Agricultural Informatics 2023  2023.5 

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  • 水稲籾のかさ密度と登熟の関係

    吉嵜隆一,平井康丸,井上英二,岡安崇史,光岡宗司,鹿内健志

    第76回農業食料工学会年次大会  2017.9 

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    Venue:東京  

  • 恒温植物ハスの熱発生メカニズムに関する温度変動の実験的考察

    後藤薫平, 福島崇志, 井上英二, 石丸有香, 岡安崇史

    農業環境工学関連学会2006年合同大会  2006.9 

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    Venue:Sapporo  

  • セミクローラ式トラクタ走行部の転動抵抗を考慮した振動モデル

    福島崇志, 井上英二, 光岡宗司, 岡安崇史,

    農業環境工学関連学会2006年合同大会  2006.9 

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    Venue:Sapporo  

  • 稲葉繁樹,転輪と農用ゴム履帯との非線形作用特性

    宮本亮, 光岡宗司, 井上英二, 福島崇志, 岡安崇史

    農業環境工学関連学会2006年合同大会  2006.9 

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    Venue:Sapporo  

  • 穀粒群を通過する選別風の圧力損失特性

    古野裕子, 松井正実, 井上英二, 森健, 岡安崇史, 深田龍介

    農業環境工学関連学会2006年合同大会  2006.9 

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    Venue:Sapporo  

  • 穀粒群の流下拡散現象に関する研究

    古野裕子, ,松井正実, 井上英二, 森健, 岡安崇史, 深田龍介

    農業環境工学関連学会2006年合同大会  2006.9 

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    Venue:Sapporo  

  • 発熱植物ハスの発熱制御に関する研究

    石丸有香,福島崇志,光岡宗司,井上英二,岡安崇史,和田小百合

    農業機械学会九州支部  2007.8 

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    Venue:Kagoshima  

  • 穀粒群が受ける抗力に関する研究

    古野裕子,松井正実,井上英二,森健,岡安崇史,深田龍介

    農業機械学会九州支部  2007.8 

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    Venue:Kagoshima  

  • セミクローラ式トラクタの振動特性に関する研究

    奥田康隆,福島崇志,光岡宗司,井上英二,岡安崇史,松本和起

    農業機械学会九州支部  2007.8 

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    Venue:Kagoshima  

  • 発熱植物ハスの発熱制御に関する実験的考察

    福島崇志,井上英二,光岡宗司,後藤薫平,石丸有香,岡安崇史

    農業環境工学関連学会2007年合同大会  2007.9 

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    Venue:Tokyo  

  • 選別風を受ける籾群・藁群の飛行特性

    古野裕子,松井正実,井上英二,森 健,岡安崇史,深田龍介

    農業環境工学関連学会2007年合同大会  2007.9 

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    Venue:Tokyo  

  • 履帯構造上有する張力変動を考慮した農用ゴム履帯車両の振動特性の解明

    光岡宗司,井上英二,福島崇志,宮本 亮,大倉典雄,岡安崇史

    農業環境工学関連学会2007年合同大会  2007.9 

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    Venue:Tokyo  

  • 一定風速条件下における穀粒群の飛散シミュレーション

    古野裕子,深田龍介,松井正実,井上英二,岡安崇史,森 健

    農業環境工学関連学会2007年合同大会  2007.9 

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    Venue:Tokyo  

  • INVESTIGATION OF VIBRATION CHARACTERISTICS OF AGRICULTURAL RUBBER CRAWLER VEHICLES International conference

    Muneshi Mitsuoka, Eiji INOUE*, Takashi Fukushima, Takashi Okayasu, Noiro Okura

    Int. S. Agr. Struct. Agr. Engng. 2007  2007.12 

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    Country:Taiwan, Province of China  

  • INVESTIGATION OF THE VIBRATION CHARACTERISTIC OF THE HALF TRACKED TRACTOR International conference

    Muneshi Mitsuoka, Eiji Inoue, Takashi Fukushima, Takashi Okayasu

    Int. WS Agri. Biosy. Engng.  2007.12 

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    Country:Viet Nam  

  • 農用ゴム履帯車両の振動加速度のカオス時系列解析

    大倉典雄,光岡宗司,井上英二,岡安崇史,福島崇志

    第67回農業機械学会年次大会  2008.3 

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    Venue:Miyazaki  

  • セミクローラ式トラクタの非線形振動に関する研究

    松本和起,井上英二,光岡宗司,岡安崇史,福島崇志,奥田康隆

    第67回農業機械学会年次大会  2008.3 

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    Venue:Miyazaki  

  • k-εモデルを導入した選別風の数値流体解析

    古野裕子,井上英二,森 健,岡安崇史,松浦大海,松井正実

    第67回農業機械学会年次大会  2008.3 

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    Venue:Miyazaki  

  • 藁群の終末速度および選別風との相互作用に関する研究

    古野裕子,井上英二,森 健,岡安崇史,松井正実,松浦大海

    第67回農業機械学会年次大会  2008.3 

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    Venue:Miyazaki  

  • 衝撃式脱穀装置における作物物性と脱粒の関係についての統計的解析

    土師 健,井上英二,光岡宗司,岡安崇史,今村英一,上加郁郎,松浦大海

    第67回農業機械学会年次大会  2008.3 

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    Venue:Miyazaki  

  • INVESTIGATION OF NONLINEAR VIBRATION CHARACTERISTICS OF AGRICULTURAL RUBBER CRAWLER VEHICLES International conference

    Eiji INOUE, Muneshi MITSUOKA, Norio OKURA, Takashi FUKUSHIMA, Takashi OKAYASU

    4th Int. Symp. Mach. Mech. Agr. Biosys. Engng. (ISMAB)  2008.5 

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    Country:Taiwan, Province of China  

  • INVESTIGATION OF NONLINEAR VIBRATION CHARACTERISTICS OF THE HALF TRACKED TRACTOR International conference

    Muneshi MITSUOKA, Yasutaka OKUDA, Kazuki MATSUMOTO, Takashi FUKUSHIMA, Takashi OKAYASU, Eiji INOUE

    4th Int. Symp. Mach. Mech. Agr. Biosys. Engng. (ISMAB)  2008.5 

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    Country:Taiwan, Province of China  

  • 衝撃式脱穀装置における作物物性と脱粒性との関係について

    土師 健,井上英二,光岡宗司,岡安崇史,今村英一,上加郁郎

    第63回農業機械学会九州支部例会  2008.8 

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    Venue:Kumamoto  

  • 一定風速条件下における藁の飛行シミュレーション

    松浦大海,古野裕子,深田龍介,松井正実,井上英二,岡安崇史

    第63回農業機械学会九州支部例会  2008.8 

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    Venue:Kumamoto  

  • モデル車両を用いたセミクローラ式トラクタの牽引特性に関する基礎的研究

    畑崎達哉,光岡宗司,井上英二,岡安崇史

    第63回農業機械学会九州支部例会  2008.8 

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    Venue:Kumamoto  

  • セミクローラ式トラクタの履帯走行部転輪荷重特性の実験的考察

    武岡 達,光岡宗司,井上英二,岡安崇史

    第63回農業機械学会九州支部例会  2008.8 

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    Venue:Kumamoto  

  • 農用ゴム履帯車両の非線形振動解析

    大倉典雄,光岡宗司,井上英二,岡安崇史

    第63回農業機械学会九州支部例会  2008.8 

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    Venue:Kumamoto  

  • 一定風速条件下における籾と藁の飛散シミュレーション

    松浦大海,井上英二,光岡宗司,岡安崇史,上加裕子

    第64回農業機械学会九州支部  2009.8 

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    Venue:Saga  

  • 流体力学理論による粒子間,粒子-気流間の相互作用の解明

    上加裕子,松井正実,井上英二,森健,岡安崇史

    農業環境工学関連学会2009年合同大会  2009.9 

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    Venue:Tokyo  

  • セミクローラ式トラクタの振動特性の3次元予測モデルの構築

    辻本 規,光岡宗司,井上英二,福島崇志,岡安崇史

    農業環境工学関連学会2009年合同大会  2009.9 

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    Venue:Tokyo  

  • セミクローラ式トラクタの牽引特性に関する基礎的研究

    武岡 達,光岡宗司,井上英二,畑崎達哉,岡安崇史

    農業環境工学関連学会2009年合同大会  2009.9 

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    Venue:Tokyo  

  • Three Dimension Model of Vibration Characteristics of the Half-tracked Tractor International conference

    Mitsuoka, M., Tsuzimoto, T., Ashik, R.M., Inoue , E., Fukushima, T., Okayasu, T.

    ISMAB2010  2010.4 

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  • Investigation of Chilling Sensitivity and Effect of Instant Water Soaking Treatment on the Quality of Amaranth Leaves International conference

    Nakano, K., Takahashi, C., Oba, S., Shimazu, T., Okayasu, T.

    ISMAB2010  2010.4 

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  • Fluid Analysis of Cleaning Wind in Combine Harvester International conference

    Ueka, Y., Matsui, M., Inoue, E., Mori, K., Okayasu, T.

    ISMAB2010  2010.4 

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  • Study on Durability Improvement of the Shallow Tillage Seeding Machine with Cutting Small Ditches - Measurement of an acting force on the bearing part of the side disk to cut small ditch International conference

    Fukami, K. Watanabe, T., Sasaki, Y., Tanio, M., Tsutiya, S., Tasaka, K., Okayasu, T., Inoue, E., Ohba, H., Kamitsuzi, N.

    ISMAB2010  2010.4 

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  • Dynamic Model of Half-Tracked Tractor Considering the Nonlinear Voigt Model International conference

    Ashik, R.M., Mitsuoka, M., Takeoka, S., Inoue, E., Fukushima, T., Okayasu T.

    ISMAB2010  2010.4 

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  • MEMSセンサーを用いた自脱コンバインの稼働状況の把握

    森田岳,永翁和明,光岡宗司,井上英二,岡安崇史

    第66回農業機械学会九州支部  2011.8 

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    Venue:Naha  

  • 自脱コンバインにおける2番分配率の穀粒損失に与える影響

    加賀龍哉,松井正実,光岡宗司,井上英二,岡安崇史,上加裕子

    第66回農業機械学会九州支部  2011.8 

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    Venue:Naha  

  • MEMSセンサを用いたトラクタの傾斜角の検出

    光岡宗司,井上英二,岡安崇史,坂口 希,辻本規

    第70回農業機械学会年次大会  2011.9 

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    Venue:Hirosaki  

  • MEMSセンサーを用いた農業機械の稼働状況の把握に関する研究

    永翁和明,森田 岳,光岡宗司,井上英二,岡安崇史,穴井孝幸

    第70回農業機械学会年次大会  2011.9 

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    Venue:Hirosaki  

  • 風選別部における3次元流体解析について

    片山隆司,溝口寛子,光岡宗司,井上英二,岡安崇史,上加裕子,松井正実

    第70回農業機械学会年次大会  2011.9 

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    Venue:Hirosaki  

  • Approach to Local Enviroment Control for Stable Production of Stawberry International conference

    Miyoshi, Y., Hidaka, K., Okayasu, T., Hirano, O., Yasutake, D., Kitano, M.

    IFAC2013 Bio Robotics Conf.  2013.3 

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    Country:Japan  

  • Correlation anomaly detection by using time series data of agricultural machinery

    Mitsuoka, M., Takata, K., Inoue, E., Okayasu, T., Hirai, Y.

    8th International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB)  2016.5 

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  • Accuracy evaluation of a method to compute the area of combine-harvested field sections

    Ogata, M., Hirai, Y., Nakanishi, T., Shikanai, T., Inoue, E., Okayasu, T., Mitsuoka, M.

    8th International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB)  2016.5 

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  • Accuracy of rice straw weight and rough grain yield predicted by a modified crop growth model based on sucros1

    Iwasaka, S., Hirai, Y., Yamakawa, T., Inoue, E., Okayasu, T., Mitsuoka, M.

    8th International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB)  2016.5 

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  • Investigation of the mechanical threshing characteristics of sorghum

    Momanyi J. Simanto, M. J., Mitsuoka, M., Inoue, E., Okayasu, T., Hirai, Y.

    8th International Symposium on Machinery and Mechatronics for Agriculture and Biosystems Engineering (ISMAB)  2016.5 

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  • 農業機械騒音低減のためのANCシステムの構築

    日野翔太, 堀江亮汰, 井上英二, 光岡宗司, 岡安崇史, 平井康丸

    第75回農業食料工学会年次大会  2016.5 

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    Venue:京都  

  • コンバイン走行時に撮影したイネの刈り株画像を用いた穂数計測法

    平井康丸, 成田圭佑, 境淳成, 稲葉繁樹, 井上英二, 岡安崇史, 光岡宗司

    第75回農業食料工学会年次大会  2016.5 

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    Venue:京都  

  • 暖地輪作体系における乾田直播圃場の透水性制御技術に関する研究-振動ローラ鎮圧が水稲の生育・収量に及ぼす影響の解明-

    深見公一郎, 中野恵子, 椋木俊文, 稲葉敏樹, 松尾直樹, 土屋史紀, 佐々木豊, 岡安崇史

    第75回農業食料工学会年次大会  2016.5 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:京都  

  • 受動騒音制御による農業機械の騒音低減に関する研究

    堀江亮汰, 井上英二, 光岡宗司, 岡安崇史, 平井康丸

    第75回農業食料工学会年次大会  2016.5 

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    Venue:京都  

  • Investigation of Tire Air Pressure of Tractor with Tire Pressure Monitoring System

    Soyoung SHIN, Eiji INOUE, Muneshi MITSUOKA, Takashi OKAYASU, Yasumaru HIRAI

    2016.9 

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  • 脱穀現象の三次元個別要素解析

    今浜洋樹,井上英二,光岡宗司,岡安崇史,平井康丸

    第70回農業食料工学会九州支部例会  2016.9 

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    Venue:福岡  

  • コンバインによる収穫物データ収集の方向性

    平井康丸,岩坂宗一郎,井上英二,岡安崇史,光岡宗司

    第70回農業食料工学会九州支部例会  2016.9 

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    Venue:福岡  

  • 転輪-農用ゴム覆帯間の力学的作用の個別要素法解析

    安藤真基,井上英二,光岡宗司,岡安崇史,平井康丸

    第70回農業食料工学会九州支部例会  2016.9 

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    Venue:福岡  

  • DEMによる揺動選別部の最適設計要素パラメータの検討

    池田康佑,井上英二,岡安崇史,平井康丸,光岡宗司,廣松大樹

    第76回農業食料工学会年次大会  2017.9 

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    Venue:東京  

  • 計測データセットの相関グラフ学習による農業機械の異常検出に関する研究

    光岡宗司,高田康平,井上英二,岡安崇史,平井康丸

    第76回農業食料工学会年次大会  2017.9 

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    Venue:東京  

  • Terrain Reconstruction Using Stereo Vision Camera forTractor Rollover Estimation

    SHIN SOYOUNG,光岡宗司,井上英二,岡安崇史,平井康丸

    第76回農業食料工学会年次大会  2017.9 

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    Venue:東京  

  • コンバインの移動軌跡に基づく集荷穀物に対応した収穫面積の自動計算手法

    平井康丸,緒方聖大,井上英二,岡安崇史,光岡宗司,鹿内健志

    第76回農業食料工学会年次大会  2017.9 

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    Venue:東京  

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MISC

  • これからのフェノタイピング Reviewed

    岡安崇史

    植物環境工学   2024.1

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  • 交通地盤工学に関する基礎講座「第7章 鉄道軌道の設計施工・維持管理」 Reviewed

    桃谷尚嗣,中村貴久,川崎祐征,早野公敏,岡安崇史,石川達也

    地盤工学会誌   2021.3

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  • センサ・画像情報を用いたイチゴの栽培環境計測と生育評価

    岡安崇史・田中泰洋・政井隆之

    電気評論、電気評論社   2018.11

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  • はじめてのラズパイ植物センシング

    岡安崇史・堀本正文

    CQ出版   2018.10

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  • 農業・植物フェノタイピング研究における映像技術の利用

    岡安崇史

    映像情報メディア学会誌, 査読無   2018.3

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  • 露地栽培作物の生育評価のためのドローンの利用

    岡安 崇史, 深見公一郎, 長谷川克也

    農業食料工学会誌   2016.3

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  • スマート農業と二つのSNS

    岡安崇史・有田大作

    電気計算   2015.6

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  • 中小農家も使える圃場環境モニタリング装置

    岡安崇史・有田大作

    ニューカントリー   2015.2

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  • 農業に活用できるICT

    岡安 崇史, 有田 大作

    全農 福岡県本部   2013.10

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  • 2つのSNSが切り拓く新たな農業の展開

    岡安 崇史, 有田 大作

    産学官連携ジャーナル・科学技術振興機構   2013.9

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  • Informatization Agriculture in Japan

    Takashi OKAYASU

    Proceedings of the International Symposium on Agricultural and Biosystem Engineering (ISABE) 2013   2013.8

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  • 地盤材料の構成モデル最前線 4. 地盤材料の密度や繰返し載荷を考えたモデル化

    岡安崇史

    地盤工学会誌   2011.6

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  • H19年度現代的教育ニーズ取組支援プログラム 「地域環境・農業活用による大学教育の活性化-ネットワーク型農学校が大学と地域社会の未来像を創造する-」

    中司 敬,原田昌佳,岡安崇史,佐藤剛史,丸居 篤,吉木美恵子

    九州大学   2010.3

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  • 大都市周辺生態圏・河川領域における環境科学研究創成のための次世代研究者ネットワークの構築

    岡安崇史

    2007.10

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    Other Link: http://www.agr.kyushu-u.ac.jp/

  • 圃場環境情報モニタリングシステムの開発とその営農利用への試み

    岡安崇史,西出寿也,中司 敬,井上英二

    Bio九州   2006.10

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  • 粒状体の現象論的力学モデルとその農業機械分野への応用

    岡安崇史

    農業機械学会誌   2006.7

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  • 穀物層流動等を理論的に解明

    岡安崇史

    農機新聞   2006.5

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  • Examining Load on the Top Plate of a Combine for Multi-crops during the Harvesting of Feed Corns through Rosette Analysis and DEM

    大塚望実, 平井康丸, 岡安崇史, 深見公一郎, 高橋仁康

    農業食料工学会誌   85 ( 6 )   2023   ISSN:2188-224X

  • Examining load on the top plate of a combine for multi-crops during the harvesting of feed corns through rosette analysis and DEM-FEM coupled analysis

    大塚望実, 平井康丸, 岡安崇史, 深見公一郎, 高橋仁康

    農業環境工学関連学会合同大会講演要旨集(CD-ROM)   2023   2023   ISSN:1880-2087

  • データ駆動型農業のための植物フェノタイピング技術について

    岡安崇史, 岡山毅, 平良英三, 福島崇志, 梅田大樹

    農業食料工学会年次大会講演要旨   80th (CD-ROM)   2022   ISSN:2188-2584

  • NFT水耕栽培における根群の成長モニタリングシステム-地上部も含めた統合評価に向けて-

    安武大輔, 安武大輔, 北内拓樹, 野村浩一, 北野雅治, 岡安崇史, 岡安崇史, 尾崎行生, 広田知良

    日本生物環境工学会大会講演要旨   2022   2022

  • Internet of Plants(IoP)の共創(1)IoPの概念と目指す姿

    北野雅治, 岩尾忠重, 山崎富弘, 齊藤雅彦, 但田育直, 野村浩一, 安武大輔, 岡安崇史

    日本農業気象学会全国大会講演要旨/Proceedings of International Symposium on Agricultural Meteorology   2022 (CD-ROM)   2022

  • 九州各地区の独自の活動

    岡安崇史

    地盤工学会   2010.6

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  • 伊都キャンパス農学研究院分室を拠点とした糸島地域の持続的農業のための効率的水資源利用技術の研究展開

    平松和昭,神野健二,広城吉成,横田雅紀,望月俊宏,中野 豊,吉越 恆,小松 光,弓削こずえ,丸居 篤,森 牧人,原田昌佳,岡安崇史

    2008.5

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    Other Link: http://www-water.bpes.kyushu-u.ac.jp/ito/

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Works