2.In this paper, the change of sensitivity of the condenser microphones CH 16 and BK 4136 etc. are estimated and calibrated under the high intensity sound.
3.This paper combines porosity change and compression coefficient with the help of compression proposed by Zimmerman. It proves theoretically the porosity change of rock in the process of elastic deformation.
7.The paper reviewed firstly "Global Change Open Science Conference 2001" held in Amsterdam, Netherlands, and analyzed the important parts of the impact of human activities in the global change in various fields of the study of global change.
10.Using the wight average value of the two models as CSIRO-MK_2 and CCSR/NIES,this paper has simulated the climate change in future and discussed the response of hydrologic elements to the climate change.