Institution: | [1]College of Physical Science and Technology, Central China Normal University, Wuhan 430079, China; [2]Wuhan Engineering Science and Technology Institute, Wuhan 430019, China; [3]Department of Physics, Kashgar Teachers College, Kashgar 844000, China; [4]Engineen.ng Geophysical Research Center, Yangtze University, Jingzhou 434023, China |