电脑自诞生之日起,就以难以置信的速度迅速发展着,现在,电脑已经完全渗入了人们生活、工作中的每一个角落。电脑如此高的普及程度、对人们工作和生活影响如此广泛而深入,在前几年还是许多人都难以想象的。在电脑的普及过程中,电脑走进了千家万户,成为了许多家庭必备的设备之一,以其强大的性能改变着甚至于颠覆着家庭生活的概念。
According to the deficiency of the strain accumulating and releasing curves and the previous models, the strain-accumulating rate of the strain accumulating and releasing model has been deduced based
This paper reviews and analyses briefly the general characteristics of shallow strong earthquakes (MS≥6.0, focal depth h≤70 km) in space, time and magnitude and earthquake fatalities of Chinese mainla
The arrival times of first teleseismic phases are difficult to be measured precisely because of slowly and gradually changed onsets and weak amplitudes. The arrival times measured manually are usually
介绍一种基于ADSP21060和Virtex II的星载图像处理系统。分析了图像处理系统的功能和任务,给出了处理系统的硬件结构、FPGA的功能模块、DSP的软件框架和模块。通过地面原理样机开发,验证了系统设计的正确性和高效性。
In the paper, we have discovered the abnormal area distribution features of maximum variation values of ground motion parameter uncertainty with different probabilities of exceedance in 50 years withi
Through the analysis and 2-D inversion for the 5 profiles in Haiyuan arcuate tectonic region (105°~107°E, 36°~37.5°N) in the northeastern margin of Qinghai-Xizang Plateau, we have obtained the electri
The paper presents a staggered-grid any even-order accurate finite-difference scheme for two-dimensional (2D), three-component (3C), first-order stress-velocity elastic wave equation and its stability
Recent progress of study on gas electron multiplier (GEM) has been described. Due to its fast time re-sponse and excellent position sensitivity, the GEM will find wide applications in particle physics