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  

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

2014.6

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

J. Terramech.   2007.1

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

CMES   2007.1

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

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

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

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

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

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

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

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

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

2005.1

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

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

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

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

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

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

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

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

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

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

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

Int. J. Plasticity   2004.1

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

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

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

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

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

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

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

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

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

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

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

2003.1

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

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

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

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

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

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

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

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

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

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

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

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

2000.1

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

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

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

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

Time-dependent elastoplastic constitutive model Reviewed International journal

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

Metals and Materials   1998.1

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

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

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

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

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 ）

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 ）

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 ）

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

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

Future Phenotyping

OKAYASU Takashi

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

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

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 ）

Plant Phenotyping

OKAYASU Takashi

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

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 ）

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

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 ）

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

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

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 ）

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

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

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 ）

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 ）

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 ）

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

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 ）

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 ）

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 ）

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 ）

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 ）

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

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

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

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

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

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

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

66 ( 1 )   2021.2

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

64 ( 1 )   2019.2

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Evaluation of Tractor Fuel Efficiency using Dynamometer and Baler Operation Cycle

2016.2

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

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

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

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

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

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

Effect of Geometric Configuration on Tractor Stability Characteristics

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

2016.2

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

2002.1

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Time-dependent elastoplastic constitutive model Reviewed

Koichi Hashiguchi, Xianan Wu, Takashi Okayasu, Seiichiro Tsutsumi

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

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

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

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

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 

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 

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 

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 

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 ）

Accuracy Evaluation of Navigation Stack for Small Tank Robot based on ROS

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

2021.12 

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 

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 

Plant Phenotyping Technology to Enhance Next Smart Agriculture Invited International conference

Okayasu, T.

AgriApp 2022 Workshop  2022.3 

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 

Autonomous Mobile Robot Design Based on ROS

Sadam, S. M., Okayasu, T., Inoue, E., Hirai, Y.

2022.5 

Development of Farming Support Robot Based on ROS

Sadam, S. M., Okayasu, T., Inoue, E., Hirai, Y.

2022.5 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

Smart farming technologies for small and mid scale horticulture Invited International conference

Okayasu, T.

KoRAA training program  2022.10 

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 

Plant Phenotyping for The Next Smart Agriculture Invited International conference

Okayasu, T.

Implementasi Program Kompetisi Kampus Merdeka  2022.12 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

Comparison of High Accuracy and Throughput 3D Reconstruction Techniques to Collect Plant Canopy Information

2024.5 

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 

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 

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 

Plant Phenotyping Technology Leading to Data-driven Agriculture Invited

Takashi OKAYASU

2023.7 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

Finite element analysis on uplift problem of ground anchor International conference

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

2005.1 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

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 

Tractor Running Tests at Isahaya Bay Reclamation International conference

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

ISMAB2010  2010.4 

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 

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