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An integrated approach to tropical and subtropical island conservation
Yamano, Hiroya,Satake, Kiyoshi,Inoue, Tomomi,Kadoya, Taku,Hayashi, Seiji,Kinjo, Koichi,Nakajima, Daisuke,Oguma, Hiroyuki,Ishiguro, Satoshi,Okagawa, Azusa,Suga, Shinsuke,Horie, Tetsuya,Nohara, Katsuhit The Ecological Society of Korea 2015 Journal of Ecology and Environment Vol.38 No.2
After the reversion of Okinawa (Ryukyu Islands) to Japan in 1972, extensive urban and agricultural development resulted in a significant increase in sediment discharge to coastal waters. The release of sediment has caused the degradation of freshwater and coastal ecosystems and biodiversity. A consideration for catchment-to-reef continua, as well as agricultural (socioeconomic) factors is necessary to establish proper land-based management plans for the conservation of the island environment. We have set up a framework to integrate biophysics and socioeconomics: 1) setting a conservation target and threshold, 2) identifying the sources and processes, and 3) examining cost-effectiveness and management priorities. The framework may be applicable to other tropical and subtropical islands with similar characteristics.
Quality Management System Proposed to JENDL Evaluation Project
N. Yamano,T. Yoshida,K. Nakajima,M. Ishikawa,K. Shibata,M. Uematsu,Y. Tahara 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.23
A concept of the quality management system proposed for the Japanese Evaluated Nuclear Data Library (JENDL) is described. The concept is based on the process approach established as an International Standard of a quality management system (ISO 9001). In order to discuss how to guarantee the quality of JENDL, a working group focusing on a quality assurance strategy was established in the Japanese Nuclear Data Committee. After three years of discussions, the working group published a report about a quality management system for JENDL and proposed this work to the JENDL evaluation group of the Japan Atomic Energy Agency. The concept of quality management system of JENDL consists of five items: (1) Objective, (2) Organization, (3) Scope, (4) Quality Assurance, and (5) Quality Manual. The concept of the quality management system and the documented procedure have been presented.
Y. Yamano,K. Akatsu 전력전자학회 2023 ICPE(ISPE)논문집 Vol.2023 No.-
Torque ripple reduction in PMSM(Permanent Magnet Synchronous Motor) for EVs drive motors is one of the technologies that reduce vibration. Torque ripple reduction techniques require accurate torque ripple modeling and estimation of motor parameters considering magnetic saturation and magnet temperature variation. Existing approaches that consider magnetic saturation and magnet temperature variation are complex and difficult to implement. Therefore, this study uses phasers to represent torque ripples. This allowed us to represent the torque ripple geometrically and to determine the harmonic currents for torque ripple reduction in a simplified manner. This method is also extended to vibration suppression by measuring vibration using an acceleration sensor. In this paper, experimental results of 6th and 12th order vibration suppression are presented by using the determination method of the harmonic current commands. From these results, vibration can be suppressed by installing an acceleration sensor at locations where vibration is to be suppressed.
An integrated approach to tropical and subtropical island conservation
Hiroya Yamano,Kiyoshi Satake,Tomomi Inoue,Taku Kadoya,Seiji Hayashi,Koichi Kinjo,Daisuke Nakajima,Hiroyuki Oguma,Satoshi Ishiguro,Azusa Okagawa,Shinsuke Suga,Tetsuya Horie,Katsuhito Nohara,Naoko Fukay 한국생태학회 2015 Journal of Ecology and Environment Vol.38 No.2
After the reversion of Okinawa (Ryukyu Islands) to Japan in 1972, extensive urban and agricultural development resulted in a significant increase in sediment discharge to coastal waters. The release of sediment has caused the degradation of freshwater and coastal ecosystems and biodiversity. A consideration for catchment-to-reef continua, as well as agricul¬tural (socioeconomic) factors is necessary to establish proper land-based management plans for the conservation of the island environment. We have set up a framework to integrate biophysics and socioeconomics: 1) setting a conservation target and threshold, 2) identifying the sources and processes, and 3) examining cost-effectiveness and management pri¬orities. The framework may be applicable to other tropical and subtropical islands with similar characteristics.