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Grid Computing for High-Energy Physics in Japan
Hiroyuki Matsunaga 한국물리학회 2009 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.55 No.5
The current status of and the plan for grid computing for high-energy physics in Japan are reported. A Tier-2 computing center supporting the ATLAS experiment has been running at the University of Tokyo. Recent results of the data transfer from the Tier-1 site are given in detail. Another Tier-2 center at Hiroshima University for the ALICE experiment and the Grid-related activities at High Energy Accelerator Research Organization (KEK) are also described in this paper. The current status of and the plan for grid computing for high-energy physics in Japan are reported. A Tier-2 computing center supporting the ATLAS experiment has been running at the University of Tokyo. Recent results of the data transfer from the Tier-1 site are given in detail. Another Tier-2 center at Hiroshima University for the ALICE experiment and the Grid-related activities at High Energy Accelerator Research Organization (KEK) are also described in this paper.
Sou N. Matsunaga,Kojiro Shimada,Tatsuhiko Masuda,Junya Hoshi,Sumito Sato,Hiroki Nagashima,Hiroyuki Ueno 한국대기환경학회 2017 Asian Journal of Atmospheric Environment (AJAE) Vol.11 No.1
Ozone concentration in Tokyo Metropolitan area is one of the most serious issues of the local air quality. Tropospheric ozone is formed by radical reaction including volatile organic compound (VOC) and nitrogen oxides (NOx). Reduction of the emission of reactive VOC is a key to reducing ozone concentrations. VOC is emitted from anthropogenic sources and also from vegetation (biogenic VOC or BVOC). BVOC also forms ozone through NOx and radical reactions. Especially, in urban area, the BVOC is emitted into the atmosphere with high NOx concentration. Therefore, trees bordering streets and green spaces in urban area may contribute to tropospheric ozone. On the other hand, not all trees emit BVOC which will produce ozone locally. In this study, BVOC emissions have been investigated (terpenoids: isoprene, monoterpenes, sesquiterpenes) for 29 tree species. Eleven in the 29 species were tree species that did not emit BVOCs. Three in 12 cultivars for future planting (25 %) were found to emit no terpenoid BVOCs. Eight in 17 commonly planted trees (47%) were found to emit no terpenoid BVOC. Lower-emitting species have many advantages for urban planting. Therefore, further investigation is required to find the species which do not emit terpenoid BVOC. Emission of reactive BVOC should be added into guideline for the urban planting to prevent the creation of sources of ozone. It is desirable that species with no reactive BVOC emission are planted along urban streets and green areas in urban areas, such as Tokyo.
Case Study Report Electrochemical Capacitor Latest Application
Toshihiko Furukawa,Naoki Akiba,Hiroyuki Wakabayashi,Shin Watanabe,Shinichi Matsunaga,Masakazu lsobe,Takariro Kikuta 전력전자학회 2019 ICPE(ISPE)논문집 Vol.2019 No.5
* Capacitor is a power device and Battery is an energy device * The device should be selected for a suitable solution from an overall cost performance viewpoint