Using this new method, we obtain the 3 component receiver functions at stations along the passive seismic profile across the Dabieshan orogenic belt from Daqipu (30°20′N,115°03′E) nearby Daye, Jiangxi Province to Cuilin(34°40′N,114°49′E)nearby Lankao, Henan Province.
In this paper, high performance liquid chromatography (HPLC) along with mass spectrometry (MS) and HPLC along with a diode array detector (DAD) was used to study the compound Ilex pubescens extract.
From April, 2003 to September, 2004, a passive broadband seismic array consisting of 60 stations was deployed over the Tianshan orogenic belt by State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration.
In this study, from the travel time data recorded in the Tianshan passive seismic array experiment, we present the P-wave velocity structure of the upper mantle down to 660 km along the Kuqa-Kuitun profile in terms of seismic tomography technique.
With the inversion method without model blocks and using P and S reflections from Moho at critical distances, the 3-D images of P, S velocity perturbation and ratio vp/vs perturbation of the upper crust under the seismic array were reconstructed.
During the annular eclipse of September 23, 1989, several kinds of observation, such as TEC and Doppler measurements in a three-station network as well as a rapid-run ionosonde, were simultaneously carried out at Wuhan Ionospheric Observatory to observe the ionospheric effects of the eclipse. Both the horizontal propagation and the vertical evolusion of the traveling ionospheric disturbances (TIDs) after the solar eclipse are investigated in detail. It is found that the TIDs in different ionospheric heights...
In the paper,the regression models of all main parameters of envelope function of ground motion are established,and the regression equation and its arguments are checked by using methods of variance analysis and T value. The variable characteristics of parameters in local site are studied,based on data of 3 events of SMART-1. The results analyzed show that the start time of stationary duration, t1,is mainly controlled by coordinates of stations,and the intensity factor,I0,the stationary duration,ts and atte...
A temporary seismic station array,consisting of 88 analogue and digital recorders with three components,was arranged in a 30km×40km region for receiving the PmP and SmS waves reflected from the Moho at the critical distances generated by 6 shots from different azimuths.The travel-time residuals are used for the reconstruction of the P and S velocity structures and Vp/Vs distribution under the seismic array from the depth off km until the depth of 9 km.The results reveal that the velocity structures of the u...