巻号一覧
33 巻 (1996 - 1997)
- 3 号 p. 169-
- 2 号 p. 97-
- 1 号 p. 1-
前身誌
33 巻, 2 号
選択された号の論文の7件中1～7を表示しています
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不破 茂, 石崎 宗周, 新屋敷 嘉一, 宮本 宮本昌治, 今井 健彦1996 年 33 巻 2 号 p. 97-103
発行日: 1996年
公開日: 2018/02/01
ジャーナル オープンアクセスIn order to clarify the towing perfomance of jigs for oval squid, Sepioteuthis lessoniana, two handmade sample of jigs were used in a flume tank. They are fish and shrimp types with the same volumes and different lead weights were attached to their bodies to change the specific gravity and the position of the gravitational center. The towing performance of jigs were recorded on video tape. The data were investigated at 0.1 second intervals, and the speed and attack angle of the jigs were analyzed. The hydrodynamical resistance of the fish type was larger than that ofthe shrimp type. The shrimp type has larger attack angle than the fish type at the given speed's conditions.抄録全体を表示PDF形式でダウンロード (855K) -
酒井 久治, 坂本 牧夫1996 年 33 巻 2 号 p. 105-109
発行日: 1996年
公開日: 2018/02/01
ジャーナル オープンアクセスExperiment on maintenance of temperature difference between of inlet and outlet cooling water in condenser was conducted to evaluate electric power consumption of the variable speed pump used inverter for refigerator oh the tuna long line fishing boat. The results showed that the temperature difference of inlet and outlet cooling water in condenser was kept Within 1℃, although sea water temperature under operation changed with the range from 10 to 30 ℃. In this case, the system could save 6.8 kW in electric power consumption, the rate of energy saving indicated 86 %.抄録全体を表示PDF形式でダウンロード (714K) -
酒井 久治, 北野 庸介1996 年 33 巻 2 号 p. 111-115
発行日: 1996年
公開日: 2018/02/01
ジャーナル オープンアクセスAn emergency stop system of main engine on fishing boats operated by one man was devised to save a fisherman who fell into the sea. This system consists of the three parts ; a transmitter, a FM radio, and a detector. Experiments were conducted to evaluate the characteristics of the emergency stop system. The results showed that the average of the operating distance limits of transmitter, the stopping distance and time on the initial speed of 6.3 kt were 22.8 m, 198 m, and 166 sec, respectively. Thus this system is expected to be significantly effective as a life-saving device for many fishing boats.抄録全体を表示PDF形式でダウンロード (653K) -
武内 智行1996 年 33 巻 2 号 p. 117-122
発行日: 1996年
公開日: 2018/02/01
ジャーナル オープンアクセスIn this paper, based on the field observation, the characteristics of stratified flow and that of intemal tide in Gokasho Bay were investigated. Observation period was from 16 June to 1 July '93. Current meters with temperature sensor were moored at three or two layers at fourteen points, three of those were out of the bay, two were near the mouth and nine were in the bay. Sampling interval was ten minutes. Intemal tides were apparently observed around the bay. The amplitude of the intemal tide was decreased toward the inner part of the bay, that is ten and some meters near the mouth of the bay, some meters near the central part and very small at the innermost part. It is concluded that the intemal tide has an important effect on the environment of the bay except the innermost part of it.抄録全体を表示PDF形式でダウンロード (802K) -
塩谷 茂明, 藤富 信之, 斎藤 勝彦, 石田 廣史, 山里 重将1996 年 33 巻 2 号 p. 123-134
発行日: 1996年
公開日: 2018/02/01
ジャーナル オープンアクセスThe information of ship waves generated by a small boat is very important to prevent damage of the floating marine structure such as the cage for fishing aqua-culture. This paper deals with the measurements of ship waves generated by three kinds of actual small boats, a displacement boat, a high-speed boat and a planing boat. The main purpose of this study is to investigate the fundamental characteristics of waves generated by a small boat passing near the marine structures. The measurements of ship waves are carried out in the cases of varying distance from the sailing line with constant ship speed and varying ship speed with constant distance from the sailing line. The measured ship waves are compared with ones calculated by two kinds of simplified estimation methods and the evaluations of these methods are also investigated. As results, the both calculated results show relatively good agreement with the measured ones of a displacement boat and a high-speed boat, but have discrepancy with ones of a planing boat.抄録全体を表示PDF形式でダウンロード (1728K) -
坂本 裕二, 鳥原 英一, 隅田 良三1996 年 33 巻 2 号 p. 135-141
発行日: 1996年
公開日: 2018/02/01
ジャーナル オープンアクセスFor the purpose of development of steel fish reef, a teｓt reef was installed off the shore at Katsuura-cho, Nachi, Wakayama prefecture in 1982. Stability and durability of the structure and swaming effect of the fish reef have been checked with eleven diving works. Specially, for the purpose of researching the steel corrosion amount above the water depth of about 50m, several test pieces were installed, and have been checked for a stated period. The reef has shown the satisfying function and has been in sufficient condition in stability and durability for these eleven years since its installment.抄録全体を表示PDF形式でダウンロード (5746K) -
木村 晴保1996 年 33 巻 2 号 p. 143-144
発行日: 1996年
公開日: 2018/02/01
ジャーナル オープンアクセスPDF形式でダウンロード (364K)
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