著者

山下 俊彦 南村 尚昭 伊藤 慎一 谷野 賢二 明田 定満

出版者

公益社団法人 土木学会

雑誌

海岸工学論文集 (ISSN:09167897)

巻号頁・発行日

vol.43, pp.1076-1080, 1996-10-20 (Released:2010-03-17)

参考文献数

6

被引用文献数

1

著者

近藤 俶郎 谷野 賢二 渡部 富治 奥田 教海 松田 敏彦 土手 康彦

出版者

室蘭工業大学

雑誌

室蘭工業大学研究報告. 理工編 = Memoirs of the Muroran Institute of Technology. Science and engineering (ISSN:05802415)

巻号頁・発行日

vol.37, pp.251-266, 1987-11-10

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A series of study on wave power utilization conducted during the period of 1976―1986 by the group of staffs of the institute is summarized. Three kinds of power extractor belonging to the so-called coastal fixed type were invented and studied in laboratory. Among them the water turbine and the pendular systems were subsequently studied at the field test plant constructed at Port Muroran which shows the latter has an excellent power conversion efficiency. An approach for predicting the power extracted by the fixed type extractors has been proposed employing analyses of wave spectral transformation and of three dimensional kinematics of extractors. Simulations for maximizing the power charged into lead battery and for the optimal load condition of power generation have been performed. A case study on practical application of the wave power utilization has been done for Yagishiri Island, one of remote islands far from main lands which are the most prospective locations to realize the wave power utilization in the near future.

著者

谷野 賢二 鳴海 日出人 斎藤 二郎 本間 明宏 北原 繁志 黄金崎 清人

出版者

北海道東海大学

雑誌

北海道東海大学紀要. 理工学系 (ISSN:09162097)

巻号頁・発行日

vol.11, pp.35-47, 1999-03-25

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In Hokkaido ports on the Sea of Japan and along the Tsugaru Straits, which are along the course of the spawning migration of spear squids, Loligo bleekkeri, their eggs were found on breakwaters and other port structures. Therefore, research has been conducted on the spawning properties of spear squids and survival rates of eggs on breakwaters, as well as on related physical environment properties. On breakwaters and other structures, spear squids lay their egg capsules in cracks in vertical concrete walls of breakwaters and quays, as well as in the cavities of wave-dissipating works and armor blocks. In deep cavities created by wave-dissipating works and armor blocks, more eggs were found on blocks which were deeper in the cavities than the second row from the end of the slope. Since spawning grounds on reefs are not deep enough in many cases, the irradiance may be high at some parts to which egg capsules adhere. In highly illuminated spawning grounds, diatoms adhere to the surface of egg capsules and the survival rate decreases. In the port with little current, silt adheres to the surface of egg capsules and also decreases the survival rate. The cavities of wave-dissipating blocks, on the other hand, are washed by swift waves and the irradiance is low. There are no substance adhered to the surface of egg capsules and the survival rate is high.