WEKO3
アイテム
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The models were made in a reduction to one fourteenth of the original scale after\nTauchi\u0027s comparative method. The current velocities inside and outside of the net, were measured with\nsmall type current-meter, and as was performed in the Ist Report, the relationship between the current\nvelocity and the height of net-mouth, and that between the current velocity and the resistance of net\nwere analyzed.\nResults are as follows;\n(1) Current velocity inside the net was faster about 5~20% than that at the net-mouth ; the higher\nwas the current velocity at the net-mouth, the lower was that beside the net-body, owing to the current\nbeside the boby, showing eddy-state. Both at the side of the triangled webbing and at the rear of the\ncod-end there was noted a current of lower velocity, the value ranging about 45~80% of that of the\nnet-mouth.\n(2) The height of net-mouth of the changing web net with large mesh (B_1 net) was ascertained to be\nlarger than that of the other three nets ; the difference in the height being no less than provided that\nthe interval between the wing ends was 42m. and the towing speed was 3 knots.\nIn B_1 net mentioned above, current velocity inside the net was noted to be faster than those in other\nthree nets. While relationship of the net-mouth height (h) and the towing speed (v) is to be sought by\nthe following formula. In case of h=h\u0027e^{-av} B_1 net ; Value of a is 0.27, h\u0027 is 12.9m.", "subitem_description_type": "Other"}, {"subitem_description": "背網の1部分に構造の異なる切りかえ網を夫々に付加した4種の底曳網を田内法則に従って1/14に縮尺し,本学の大型回流水槽で実験した。実験は既報と同様に網の内外の流速を小型流速計でもって測定し,流速分布を求めると共に,網口中央高さ,網成り,網の受ける流水抵抗との関係について検討した。その結果 (1) 網中の流速は網口の流速より5~20%速く,網の側面の流速は網口の流速が高速になる程速くなる傾向があり,渦流状態になることが認められた。また低速部分が三角網と網の後方部分に形成され,いずれも網口の流速の45~80%の値を示している。(2) 大目合の切りかえ網を使用した網(B_1 net)は網口高さが顕著に高くなり3ノットで他の網より1mも高くなった。この網の場合の網中流速は他の網より速いことが認められた。網口高さ(hm)と曳網速度(Vノット)との関係はh=h\u0027e^{-av}の一般式であらわされ,B_1 netの場合,aは0.27,h\u0027は12.9mの値となる。", "subitem_description_type": "Other"}]}, "item_7_full_name_2": {"attribute_name": "著者よみ", "attribute_value_mlt": [{"nameIdentifiers": [{"nameIdentifier": "105854", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "ヒゴ, ノビオ"}]}, {"nameIdentifiers": [{"nameIdentifier": "105855", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "トクナガ, ヨシロウ"}]}, {"nameIdentifiers": [{"nameIdentifier": "105856", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "タナカ, ケンゴ"}]}]}, "item_7_full_name_3": {"attribute_name": "別言語の著者", "attribute_value_mlt": [{"nameIdentifiers": [{"nameIdentifier": "105857", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "HIGO, Nobio"}]}, {"nameIdentifiers": [{"nameIdentifier": "105858", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "TOKUNAGA, Yoshiro"}]}, {"nameIdentifiers": [{"nameIdentifier": "105859", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "TANAKA, Kengo"}]}]}, "item_7_publisher_23": {"attribute_name": "公開者・出版者", "attribute_value_mlt": [{"subitem_publisher": "鹿児島大学"}]}, "item_7_source_id_7": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "0453087X", "subitem_source_identifier_type": "ISSN"}]}, "item_7_source_id_9": {"attribute_name": "NII書誌ID", "attribute_value_mlt": [{"subitem_source_identifier": "AN00040498", "subitem_source_identifier_type": "NCID"}]}, "item_7_subject_15": {"attribute_name": "NDC", "attribute_value_mlt": [{"subitem_subject": "664", "subitem_subject_scheme": "NDC"}]}, "item_7_text_24": {"attribute_name": "公開者よみ", "attribute_value_mlt": [{"subitem_text_value": "カゴシマ ダイガク"}]}, "item_7_text_25": {"attribute_name": "公開者別名", "attribute_value_mlt": [{"subitem_text_value": "Kagoshima University"}]}, "item_7_text_30": {"attribute_name": "NIIタイプ", "attribute_value_mlt": [{"subitem_text_value": "Departmental Bulletin Paper"}]}, "item_7_version_type_14": {"attribute_name": "著者版フラグ", "attribute_value_mlt": [{"subitem_version_resource": "http://purl.org/coar/version/c_970fb48d4fbd8a85", "subitem_version_type": "VoR"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "肥後, 伸夫"}], "nameIdentifiers": [{"nameIdentifier": "4790", "nameIdentifierScheme": "WEKO"}, {"nameIdentifier": "1000010041691", "nameIdentifierScheme": "NRID", "nameIdentifierURI": " "}]}, {"creatorNames": [{"creatorName": "徳永, 喜郎"}], "nameIdentifiers": [{"nameIdentifier": "105852", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "田中, 健悟"}], "nameIdentifiers": [{"nameIdentifier": "105853", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2016-10-31"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "AN00040498_v22-1_p147-155.pdf", "filesize": [{"value": "773.9 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 773900.0, "url": {"label": "AN00040498_v22-1_p147-155.pdf", "url": "https://ir.kagoshima-u.ac.jp/record/12801/files/AN00040498_v22-1_p147-155.pdf"}, "version_id": "5271cbd5-ab9a-449f-9876-b9230e037e0a"}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "jpn"}]}, "item_resource_type": {"attribute_name": "資源タイプ", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "底曳網の研究 II. : 切りかえ網の効果について", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "底曳網の研究 II. : 切りかえ網の効果について"}]}, "item_type_id": "7", "owner": "3", "path": ["40", "4835"], "permalink_uri": "http://hdl.handle.net/10232/13434", "pubdate": {"attribute_name": "公開日", "attribute_value": "2015-06-18"}, "publish_date": "2015-06-18", "publish_status": "0", "recid": "12801", "relation": {}, "relation_version_is_last": true, "title": ["底曳網の研究 II. : 切りかえ網の効果について"], "weko_shared_id": 3}
底曳網の研究 II. : 切りかえ網の効果について
http://hdl.handle.net/10232/13434
http://hdl.handle.net/10232/13434226f1254-f05e-4186-aaf4-5a8ac58bd42e
名前 / ファイル | ライセンス | アクション |
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AN00040498_v22-1_p147-155.pdf (773.9 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2015-06-18 | |||||
タイトル | ||||||
タイトル | 底曳網の研究 II. : 切りかえ網の効果について | |||||
タイトルよみ | ||||||
タイトルよみ | ソコビキアミ ノ ケンキュウ II : キリカエアミ ノ コウカ ニツイテ | |||||
別言語のタイトル | ||||||
その他のタイトル | Studies on the Drag Net II : The Effects of the Changing Web Net | |||||
著者 |
肥後, 伸夫
× 肥後, 伸夫× 徳永, 喜郎× 田中, 健悟 |
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著者よみ | ||||||
姓名 | ヒゴ, ノビオ | |||||
著者よみ | ||||||
姓名 | トクナガ, ヨシロウ | |||||
著者よみ | ||||||
姓名 | タナカ, ケンゴ | |||||
別言語の著者 | ||||||
姓名 | HIGO, Nobio | |||||
別言語の著者 | ||||||
姓名 | TOKUNAGA, Yoshiro | |||||
別言語の著者 | ||||||
姓名 | TANAKA, Kengo | |||||
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 | Four types of the model drag net whose baiting-part was supplied with, at the cod-head, four kinds of changing web net were used, experiments being performed at a tank of circulating water system in the laboratory. The models were made in a reduction to one fourteenth of the original scale after Tauchi's comparative method. The current velocities inside and outside of the net, were measured with small type current-meter, and as was performed in the Ist Report, the relationship between the current velocity and the height of net-mouth, and that between the current velocity and the resistance of net were analyzed. Results are as follows; (1) Current velocity inside the net was faster about 5~20% than that at the net-mouth ; the higher was the current velocity at the net-mouth, the lower was that beside the net-body, owing to the current beside the boby, showing eddy-state. Both at the side of the triangled webbing and at the rear of the cod-end there was noted a current of lower velocity, the value ranging about 45~80% of that of the net-mouth. (2) The height of net-mouth of the changing web net with large mesh (B_1 net) was ascertained to be larger than that of the other three nets ; the difference in the height being no less than provided that the interval between the wing ends was 42m. and the towing speed was 3 knots. In B_1 net mentioned above, current velocity inside the net was noted to be faster than those in other three nets. While relationship of the net-mouth height (h) and the towing speed (v) is to be sought by the following formula. In case of h=h'e^{-av} B_1 net ; Value of a is 0.27, h' is 12.9m. |
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要約(Abstract) | ||||||
内容記述タイプ | Other | |||||
内容記述 | 背網の1部分に構造の異なる切りかえ網を夫々に付加した4種の底曳網を田内法則に従って1/14に縮尺し,本学の大型回流水槽で実験した。実験は既報と同様に網の内外の流速を小型流速計でもって測定し,流速分布を求めると共に,網口中央高さ,網成り,網の受ける流水抵抗との関係について検討した。その結果 (1) 網中の流速は網口の流速より5~20%速く,網の側面の流速は網口の流速が高速になる程速くなる傾向があり,渦流状態になることが認められた。また低速部分が三角網と網の後方部分に形成され,いずれも網口の流速の45~80%の値を示している。(2) 大目合の切りかえ網を使用した網(B_1 net)は網口高さが顕著に高くなり3ノットで他の網より1mも高くなった。この網の場合の網中流速は他の網より速いことが認められた。網口高さ(hm)と曳網速度(Vノット)との関係はh=h'e^{-av}の一般式であらわされ,B_1 netの場合,aは0.27,h'は12.9mの値となる。 | |||||
収録雑誌名 |
鹿児島大学水産学部紀要=Memoirs of Faculty of Fisheries Kagoshima University 巻 22, 号 1, p. 147-155 |
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作成日 | ||||||
日付 | 1973-12-25 | |||||
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 |