Zobrazeno 1 - 10 of 10 pro vyhledávání: '"Yoshiharu Namikawa"'
1
Methods for predicting noise in the vicinity of signalized intersections
Autor: Hiroshi Yoshinaga, Yasuo Oshino, Kohei Yamamoto, Yoshiharu Namikawa, Koichi Yoshihisa, Terutoshi Tajika
Publikováno v: Acoustical Science and Technology. 31:87-94
To accurately estimate the noise at a signalized intersection, it is necessary to precisely reproduce the traffic volume, signal cycle and traffic noise for each vehicle behavior and driving state. Precise reproduction requires considerable effort, s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::68649f15ddb08083ccb26c9b4d331401
https://doi.org/10.1250/ast.31.87
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3
Case-study of Green purchasing system for analyzing restructuring of technical policy on national level
Autor: Keiko Kimura, Shinri Sone, Yoshiharu Namikawa
Publikováno v: Journal of Construction Management, JSCE. 14:333-342
This paper shows result of case-study of greenpurcbasing system for analyzing restructuring of technical policy on national level, from view points of external auditing system, and technical standards, outhouring of tasks. The author has selected gre
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0b97186e9fc1a1d5c07dad7ef3cb6f2c
https://doi.org/10.2208/procm.14.333
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5
Reduction of equivalent continuous A-weighted sound pressure levels by porous elastic road surfaces
Autor: Yoshiharu Namikawa, Seishi Meiarashi, Toshiaki Fujiwara, Masaki Hasebe
Publikováno v: Applied Acoustics. 66:766-778
A porous elastic road surface (PERS) is superior to drainage asphalt pavement for reducing highway traffic noise. In earlier research and development, for example using a test track, the difference in sound power level (Lw) of cars has been regarded
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9846d46b3cba47ae391bfae57d72d307
https://doi.org/10.1016/j.apacoust.2004.12.004
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7
A STUDY ON RECYLED RESOURCE FOR REDUCING ENVIRONMENTAL LOAD IN PUBLIC WORKS
Autor: Keiko Kimura, Yoshiharu Namikawa, Yasumitsu Ichimura, Shinri Sone
Publikováno v: Proceedings of the Symposium on Global Environment. 13:25-30
It is the most important issue for the sustainable society to reduce output as disposal and input of natural resource. This paper shows directions of how to reduce the output from public works and the input for public works.The directions are how to
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eea2002259451f6292830b2ccf2e8897
https://doi.org/10.2208/proge.13.25
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8
Prediction of air quality improvement impact by future regulations of automobile exhaust gas
Autor: Masayuki Matsushita, Nodoka Oshiro, Yoshiharu Namikawa
Publikováno v: INFRASTRUCTURE PLANNING REVIEW. 20:277-282
The purpose of this study is provision of the basic data about the reduction effect of nitrogen dioxide (NO2) and suspended particulate matter (SPM) concentration in the roadside air by tighter control on exhaust emissions from automobiles. On the st
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::84ec5b5725dadf55b6e711215134e50f
https://doi.org/10.2208/journalip.20.277
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