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学科主题: Engineering, Ocean ; Engineering, Geological ; Oceanography ; Mining & Mineral Processing
题名: Experimental Studies of Sound Attenuation in Seabed Sediments on Column Sample Length Scale
作者: [Long, Jian-Jun] Guangdong Univ Technol, Sch Electromech Engn, Guangzhou 510006, Guangdong, Peoples R China ; [Long, Jian-Jun] Chinese Acad Sci, CAS Key Lab Marginal Sea Geol, S China Sea Inst Oceanol, Guangzhou, Guangdong, Peoples R China
通讯作者: longjj@gdut.edu.cn
关键词: acoustic attenuation measurement ; column sample length scale ; seabed sediment ; small distance ; sound attenuation
刊名: MARINE GEORESOURCES & GEOTECHNOLOGY
发表日期: 2013
卷: 31, 期:2, 页:176-189
部门归属: 海洋地质
资助者: Most of the work reported here was carried out in a project supported by Key Laboratory of Marginal Sea Geology, Chinese Academy of Sciences, project No. MSGL09-04, and additionally supported by the China National Natural Science Foundation, project No. 40876018 and No. 41176034, and from State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, project No. SKLOA201003.
摘要: Seabed sediment microstructure has an influence on its acousto-physical properties, and the properties in a length of the sediment column reflect an aspect of the macroscopic behavior of the microstructure. An original measurement method of the sound attenuation within small distance cross sections in a sediment column, and the corresponding approach in data processing to attain an attenuation factor are detailed in the paper. This method was used to measure the compressional wave in series of points with a small distance in the sediment column, and it is shown that exponential attenuation is a type of compressional wave attenuation model for a sediment column in its full length. It indicates that there are various models of compressional wave attenuation in seabed sediments in the South China Sea after comparison of data from other literature. The method of measuring sound attenuation satisfies the sampling space interval in the acoustical forward and inverse problems in seabed sediments, and the original method provides a new approach for finding out sound attenuation mechanism in seabed sediments on small length scale.
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000315690900005
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/11134
Appears in Collections:中科院边缘海地质重点实验室_期刊论文

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[Long, Jian-Jun] Guangdong Univ Technol, Sch Electromech Engn, Guangzhou 510006, Guangdong, Peoples R China; [Long, Jian-Jun] Chinese Acad Sci, CAS Key Lab Marginal Sea Geol, S China Sea Inst Oceanol, Guangzhou, Guangdong, Peoples R China.Experimental Studies of Sound Attenuation in Seabed Sediments on Column Sample Length Scale,MARINE GEORESOURCES & GEOTECHNOLOGY,2013,31(2):176-189
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