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中層曳網の研究II : 縮結と網成り及び曳網抵抗について
http://hdl.handle.net/10232/13678
http://hdl.handle.net/10232/13678980cbfd8-e8dd-41d7-87d9-2534fc60eafe
名前 / ファイル | ライセンス | アクション |
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AN00040498_v25-1_p117-124.pdf (550.7 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2015-06-17 | |||||
タイトル | ||||||
タイトル | 中層曳網の研究II : 縮結と網成り及び曳網抵抗について | |||||
タイトルよみ | ||||||
タイトルよみ | チュウソウ エイモウ ノ ケンキュウ II : イセ ト アミナリ オヨビ エイモウ テイコウ ニツイテ | |||||
別言語のタイトル | ||||||
その他のタイトル | Studies on the Midwater Trawl II : Model experiments on the Hanging-coefficent, Netshape and Towing-net-resistance | |||||
著者 |
今井, 健彦
× 今井, 健彦× 平川, 栄一× 田畑, 静夫 |
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著者よみ | ||||||
姓名 | イマイ, タケヒコ | |||||
著者よみ | ||||||
姓名 | ヒラカワ, エイイチ | |||||
著者よみ | ||||||
姓名 | タバタ, シズオ | |||||
別言語の著者 | ||||||
姓名 | IMAI, Takehiko | |||||
別言語の著者 | ||||||
姓名 | HIRAKAWA, Eiichi | |||||
別言語の著者 | ||||||
姓名 | TABATA, Shizuo | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
要約(Abstract) | ||||||
内容記述タイプ | Other | |||||
内容記述 | In this paper the authors deal with the model experiments of 6 kinds of four-panelled midwater trawl-nets which were same in constructions, but different in hanging-coefficent. The measurements on the net-shape and towing-net-resistance were carried out in the circuler tank, with about 51 cm/sec of flow-speed. The results obtained are as follows: 1. The net-shape was noted to be different in each net, especially in both the A-net (2% of hanging-coefficent) and the B-net (5% of hanging-coefficent), the cod-end was observed to be fairly expanded. 2. The maximum cross-section-area of net-mouth was obtained in the D-net (15% of hanging-coefficent). 3. Concerning the total towing-net-resistance, the minimum value was showed by the C-net (10% of hanging-coefficent), the maximum by A-net (of the largest mesh number) and the value next to maximum was showed by the F-net (30% of hanging-coefficent; the smallest mesh number). Accordingly, we can assume that, the total net-resistance of bag-net is depending more upon net-shape than upon mesh number of the netting, except those of low hanging-coefficent. | |||||
収録雑誌名 |
鹿児島大学水産学部紀要=Memoirs of Faculty of Fisheries Kagoshima University 巻 25, 号 1, p. 117-124 |
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作成日 | ||||||
日付 | 1976-12-25 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
ISSN | 0453087X | |||||
NII書誌ID(雑誌) | ||||||
収録物識別子タイプ | NCID | |||||
NC ID | AN00040498 | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
NDC | ||||||
主題Scheme | NDC | |||||
主題 | 664 | |||||
公開者・出版者 | ||||||
出版者 | 鹿児島大学 | |||||
公開者よみ | ||||||
公開者よみ | カゴシマ ダイガク | |||||
公開者別名 | ||||||
公開者別名 | Kagoshima University |