Kyushu University Academic Staff Educational and Research Activities Database
List of Reports
Yugo Nakamura Last modified date:2023.06.27

Assistant Professor / HumanoPhilic Systems Lab / Department of Advanced Information Technology / Faculty of Information Science and Electrical Engineering


Reports
1. Masahiro Ishibashi, Chigusa Uchiumi, Naoki Aizawa, Kiyoshi Makita, Yugo Nakamura, Daisuke N. Saito, Seeking Neural correlates of the Rorschach Response: a fMRI study, INTERNATIONAL JOURNAL OF PSYCHOLOGY, Vol.51, p.937, 2016.07.
2. Promoting Installations of COCOA with Nugdes
The Ministry of Health, Labour and Welfare (MHLW) has released the COVID-19 Contact- Confirming Application (COCOA) to prevent the spread of COVID-19. However, it is currently underuti- lized and its effectiveness is questionable. Therefore, we propose the nudge system that promotes people's voluntary installation and aims to increase the utilization of COCOA. The proposed system motivates users to install COCOA by reframing the installation as the acquisition of tickets to experience three attractive events: (1) paint, (2) vote, and (3) fortune slip. In this paper, we propose the nudge system promoting the installation and assume scenarios for the use of the system, taking into account the appropriate environment for each event..
3. Investigation of a new IoT Sensing Device for Rental Property Search Index.
4. 災害時の混雑情報を考慮した避難所決定手法の提案,.
5. 災害時の混雑情報を考慮した避難場所決定手法の提案.
6. 混雑情報を考慮した災害発生時の避難場所決定手法に関する一検討.
7. 観光動画キュレーションの実現に向けたハイライト抽出手法の検討.
8. IoTデータ流を実時間で分散処理するためのIoTデバイス向け共通ミドルウェアの設計と評価.
9. Personalized Gamification on Location-based Service:
Practical Survey of Habituation and Weariness
through Stamp Rally Event.
10. Witold Szczucinski, Joanna Pawlowska, Franck Lejzerowicz, Yuichi Nishimura, Mikolaj Kokocinski, Wojciech Majewski, Yugo Nakamura, Jan Pawlowski, Ancient sedimentary DNA reveals past tsunami deposits, MARINE GEOLOGY, 10.1016/j.margeo.2016.08.006, Vol.381, pp.29-33, 2016.11, Palaeotsunami deposits are the primary sources of information on past large tsunami events and thereby are critical for earthquake and tsunami hazard assessments. They usually form sandy layers preserved in coastal sediments and contain indicators of marine origins, such as microfossils (e.g., diatoms and foraminifera) and geochemical signals of saltwater. However, these indicators are often modified or erased with time. To address this issue, we present the first application of a palaeogenetic approach to a series of up to approximately 2000 year-old sandy palaeotsunami deposits from a coastal wetland on Hokkaido Island (Japan). We found the DNA of marine foraminiferal species preserved in palaeotsunami deposits, in the absence of foraminifera tests. The recovery and analysis of the ancient sedimentary DNA of marine organisms preserved in coastal zone sediments for millennia represents a new and promising tool for the identification of past tsunamis. (C) 2016 Elsevier B.V. All rights reserved..
11. Considering challenge of CGM curation for realtime trip planning system.
12. A Design of Dynamic Hazard Map Based on Real-Time Precipitation Information.
13. Daisuke N. Saito, Chigusa Uchiumi, Naoki Aizawa, Kiyoshi Makita, Yugo Nakamura, Masahiro Ishibashi, The relationship between projective psychological test score and the structure of human brain., INTERNATIONAL JOURNAL OF PSYCHOLOGY, Vol.51, pp.885-886, 2016.07.
14. Research on the Geographically distributed Ambient interface utilizing local Information Flow of Things (GAIFoT).
15. Implementation of Test-bed for Disaster Resilience Mesh-Network using NerveNet
Several types of systems for disaster communications and networks have been studied to comprehend damage situations immediately in a heavy disaster. There are, however, various issues in the systems to put into practical use in a society, e.g., expense for implementation and operation, or system operations in ordinary states. Especially, matching the results studied by research institutes and requirements of local governments is required. In this study, we introduced the disaster resilience mesh-networks: NerveNet, developed by the National Institute of Information and Communications Technology (NICT), to the education system of Hakodate National College of Technology (HNCT), and promote to implement the system in practical use by educational activities. We show a test-bed for the disaster resilience network, which was installed in HNCT and implemented the NerveNet. The test-bed mounts some applications for safety information in a disaster, file and message exchange functions, and delivering video images. Through this educational activity, we expect the institute is capable of supporting disaster communications and the damage assessment system..
16. Effective Role of Education System to Implement Disaster Resilience Network
Several types of systems for disaster communications and networks have been studied to comprehend damage situations immediately in a heavy disaster. There are, however, various issues in the systems to put into practical use in a society even in Japan where many natural disasters frequently occur. In this paper, first we describe the disaster resilient mesh-networks: NerveNet, developed by the National Institute of Information and Communications Technology (NICT). Then, we discuss the requirements of local governments for damage assessment and disaster communications. To fulfill the requirements, we propose and examine to work with the educational institute such as the National Institute of Technology to implement the disaster system in an actual system..
17. Takuya Sagawa, Michinobu Kuwae, Kentaro Tsuruoka, Yugo Nakamura, Minoru Ikehara, Masafumi Murayama, Solar forcing of centennial-scale East Asian winter monsoon variability in the mid- to late Holocene, EARTH AND PLANETARY SCIENCE LETTERS, 10.1016/j.epsl.2014.03.043, Vol.395, pp.124-135, 2014.06, Centennial-scale variability of the East Asian winter monsoon during the Holocene is poorly understood because suitable archives and proxies are lacking. Here we present a high-resolution (similar to 30-yr spacing) planktonic foraminiferal delta O-18 record of Neogloboquadrina incompta (dextral form), which reflects sea surface temperature during the winter season, for the last 6000 yrs from marine sediments in the western North Pacific. Stronger winter monsoons indicated by cooler winter SSTs correspond to weaker summer monsoons indicated by the cave oxygen isotopes in centennial-scale variability. The variability also shows good correlation with delta O-18 records in lake sediments and ice cores from the Yukon Territory, Canada, spanning the last 4500 yrs, suggesting east-west climate coupling across the North Pacific. Furthermore, the climate changes across the North Pacific co-vary over widespread regions, such as the eastern tropical Pacific and the northern Red Sea, and the reconstructed solar activity. The cross-spectral and wavelet analyses show that the East Asian winter monsoon shares some cyclicity with the solar variability. Our results suggest that the solar activity is a fundamental forcing producing the centennial-scale EAWM variability mediated by the large-scale climate linkages. (C) 2014 Elsevier B.V. All rights reserved..
18. A Study on Middleware Architecture to Integrate Heterogeneous Sensor Networks and Actuators
Sensor Network technologies are expected to be used in various kinds of application systems. Most of them, however, have been developed to work in a dedicated system. It is desired that various types of sensor networks are operable together in a same application system. Therefore, we have studied middleware architecture named CMSAS (Common Middleware in Sensors, Actuators and Storagors) to integrate heterogeneous sensor networks and actuators. The CMSAS aims to realize virtual communications between devices such as sensor networks and actuators. In this paper, we propose the concept of CMSAS bases on RT-Middleware, which was developed by National Institute of Advanced Industrial Science and Technology (AIST). Then, we show implementation design of CMSAS in the wireless sensor networks system, which was developed to monitor acceleration in a structure..
19. A Study on Seismic Acceleration Analysis and Wireless Communications Control for Sensor Network
This study aims to build wireless sensor networks (WSN) with communications control to gather seismic acceleration and to provide the acceleration data for a structural health monitoring system. This paper first shows an analysis of the acceleration measured in a building, CALIT2 of UCI, and discusses an acceptable reduction on the sampling rate in WSN. Based on the analysis, we built a test-bed composed of WSN, a wireless distribution system (WDS) and a database server to monitor seismic acceleration. We show throughput of the WSN and WDS, and characteristics on energy-awareness..
20. Purna Sulastya Putra, Yuichi Nishimura, Yugo Nakamura, Eko Yulianto, Sources and transportation modes of the 2011 Tohoku-Oki tsunami deposits on the central east Japan coast, SEDIMENTARY GEOLOGY, 10.1016/j.sedgeo.2013.06.004, Vol.294, pp.282-293, 2013.08, We evaluated sediment sources of the 2011 Tohoku-Oki tsunami deposits along a 4500 m inland transect from the central east Japan coast, using grain size, mineralogy and foraminifera analyses. The tsunami run-up height in our study area was 13 to 20 m near the coastline, 1.4 to 2.8 m in the middle of the valley and 1.3 m around the inundation limit. The inundation distance was around 4800 m. The deposits are composed of sand and mud and show a fining and thinning trend. Mineral composition of the tsunami deposits was similar to that of coastal dune and beach deposits, indicating that most of the tsunami sediment originated from there. A minor foraminifera population in the deposit (= 100 specimens per 1 g for typical marine sediment) indicates that marine sediment source was not dominant. Topography played an important role in sediment transport process and deposit distribution. The run-up wave accelerated faster in concave topography, became more erosive, and resulted in a thin deposit in topographic lows. We infer that the deposits up to 2300 m from the coastline were deposited by bedload and suspension, whereas suspension was responsible for deposits farther inland. (C). 2013 Elsevier B.V. All rights reserved..
21. A Study on Acceleration Data Collection System in Wireless Sensor Networks : Experimental Study Based on a Performance Evaluation of System Model
Wireless Sensor Networks (WSNs) have been studied for seismic acceleration monitoring, where the monitoring system requires a high sampling rate of several tens or hundreds Hz. We have currently studied the characteristics of seismic acceleration and developed a test-bed for the acceleration collecting system, configured with WSNs, a Wireless Distribution System (WDS) and a database server. Experiments using the test-bed presented the WSN is feasible to transmit packets continuously at a rate of 100 sampling per second (sps) from sensor nodes to the sink node in single hop. This paper reports the results of experiments to transmit acceleration data by multihopping and to forward the data to the data-base server. The results showed some data were missing in the process of not only multihopping in the WSNs but also storing data in the database..
22. Margaret L. Plecki, Ana M. Elfers, Yugo Nakamura, Using Evidence for Teacher Education Program Improvement and Accountability: An Illustrative Case of the Role of Value-Added Measures, JOURNAL OF TEACHER EDUCATION, 10.1177/0022487112447110, Vol.63, No.5, pp.318-334, 2012.11, In this article, the authors consider what can be learned from limited forms of evidence, for purposes of accountability and improvement of teacher education programs. They begin with a review of recent research on how evidence has been used to examine the effectiveness of teacher preparation and development. Using empirical evidence from a state with limited data capacity, they illustrate what can be learned from value-added measures as one form of evidence. As a case in point, the value-added scores for fifth-grade teachers are used to answer the question: To what extent are teachers' years of experience and the institutions from which they obtained their teacher training related to student achievement? The authors conclude with a discussion of the use of evidence by shifting the focus of accountability from simply responding to external requirements to developing internal practices that generate knowledge for improvement, and argue for collective responsibility among multiple stakeholders..