Overview

In this book, we proposed velocity-free localization methods for acoustic and microseismic sources. This method does not require predetermination of wave velocity, which is a dynamically adjusted free real-time parameter. These methods solve the problem of large localization error caused by the difference between measured wave velocity and actual wave velocity in the source area and greatly improve the positioning accuracy. They are suitable for complex structures where the wave velocity changes dynamically in time and space, such as mines, bridges, buildings, pavements, loaded mechanical structures, dams, geothermal mining, oil extraction, and other engineering fields. This book includes progress in the development of localization methods, factors affecting the accuracy of source localization, analytical methods without the pre-measured wave velocity, velocity-free numerical methods for localizing acoustic sources, combined optimal velocity-free localization methods, velocity-free source localization considering complex paths of spatial structures, and theories as well as some cases of engineering applications of these methods.

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9789811986123

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"Longjun Dong is Professor and Director of Department of Safety Science and Engineering, Central South University, China. His research interests include rock mechanics, engineering seismicity, and applied acoustics. He obtained Ph.D., M.Sc., and B.Sc. in 2013, 2009, and 2007, respectively. He was appointed as Professor, Associate Professor, and Lecturer at Central South University in 2017, 2015, and 2013, respectively. He was invited as Research Assistant at Australian Center for Geomechanics (ACG) from 2012 to 2013. He presided over 15 projects of the National Key Research and Development Program, International Cooperation and Exchange of the National Natural Science Foundation of China (NSFC), etc. He is Recipient of the NSFC for Excellent Young Scholars (2018), the Young Elite Scientist sponsored by the China Association for Science and Technology (CAST) (2016), the leading talent of Science and Technology Innovation of Hunan Province (2021), and the Distinguished Young Scholars Fund of Hunan Province (2018). He has 161 publications in peer-reviewed journals, with 4803 citations and 41 h-index in Google Scholar, and has 48 Chinese patents. He is individual ISRM Member and IEEE Senior Member. He was invited to present over 10 Keynote Presentations and Invited Presentation at international conferences. He is the Associate Editor of the Journal of the Acoustical Society of America Express Letter, and Shock and Vibration; Editorial Board Member of Safety Science (Elsevier), Soils and Foundations (Elsevier, the official journal of the Japanese Geotechnical Society), Scientific Reports (Springer nature), and International Journal of Distributed Sensor Networks; Editorial Advisory Board Member of Archives of Mining Sciences (established by the Polish Academy of Sciences since 1956), and Guest Editor of Induced Seismicity in Scientific Reports. In 2020 and 2021, he was successively selected into the list of ""highly cited Chinese researchers (Elsevier)"" and ""Top 2% scientists in the world (Stanford University)"". Xibing Li is a Professor of Central South University, China. He is vice chairman of the Chinese Society of Rock Mechanics and Engineering, and vice chairman of the National Group of the International Society of Rock Mechanics (ISRM). Prof. Li is an outstanding expert in rock dynamics and mining engineering. He is the obtainer of National Outstanding Youth Funds (1996), distinguished professor of Changjiang Scholars Program of the Ministry of Education (2000), nomination of the National Top Ten Outstanding Scientific and Technological Workers. He has been engaged in teaching and scientific research in the field of mining and geotechnical engineering, presiding over more than 10 projects such as key projects of the National Natural Science Foundation of China, National Natural Science Funds for Distinguished Young Scholar, National Key Research and Development program, State Key Development Program of Basic Research of China, National High Technology Research and Development Program of China, etc. He has made important achievements in the theory and technology of resource mining with hidden danger, waste free mining, seabed bedrock mining, and deep hard rock mining. He has successively won 4 National Science and Technology Progress Awards, 13 first class and above awards Ministerial and Provincial-Level Science and Technology Awards. He has more than 40 national invention patents, 8 monographs, more than 400 papers included in SCI, as well as more than 500 papers included in EI have been published, with 60 h-index in Web of Science. He has supervised more than 60 doctors, one of whom was nominated for the National Excellent Doctoral Thesis, and four of whom were awarded the Excellent Doctoral Thesis of Hunan Province. He was selected into the ""Career long impact"" and ""Single year impact"" lists of the world's top 2% scientists (World's Top 2% Sciences 2020) released by Stanford University."

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