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oai:fra.repo.nii.ac.jp:02007753 2026-03-06T05:24:37Z 12:14:1716955731445

沿岸漁船の騒音計測結果 Noise Level aboard the Coastal Fishing Boat 40372057 Kubo, Satoshi 久保, 敏 クボ, サトシ Kubo 久保 クボ Satoshi 敏 サトシ Yamada, Toshio 山田, 敏夫 ヤマダ, トシオ Yamada 山田 ヤマダ Toshio 敏夫 トシオ metadata only access The authors measured the noise level aboard the coastal fishing boats. These boats are between 9.95 and 13.00 meters long and made of fiberglass reinforced plastic. (Table 1, 2, Fig. 1.) The gist is as follows. 1. Noise level under running of these boats is except a few boats: Engine room: 105~115dB(A) General workshop: 80~90 dB(A) (Table 3, Fig.2.) (Deck, steering house etc.) 2. Noise level at the general workshop has a easy-sloping climax between 100 and 1 kHz. (Fig. 3.) 3. Except D and E Maru, each boat has a simple door (about 60 cm × 60 cm) between engine room and the next room and it's opening and shutting has a great influence on the next room's noise level especially at high frequency part and little at low frequency part. (Fig. 4.) 4. It's reason is, as a result of speaker test, that the solid borne sound is superior to the air borne sound below about 1 kHz but in contrast with this, beyond that frequency, the air borne sound is superior. (Fig. 6.) 水産工学研究所 National Research Institute of Fisheries Engineering 1984-03 jpn departmental bulletin paper https://fra.repo.nii.ac.jp/records/2007753 nrife_k_5_207 https://agriknowledge.affrc.go.jp/RN/2010302340 日本農学文献記事索引(agriknowledge) AN00332937 0388-9718 水産工学研究所報告 Bulletin of National Research Institute of Fisheries Engineering 5 9 207 215