冲击压缩作用下LY12硬铝合金剪切强度的测定

本文采用组合飞片技术在轻气炮上实现了对LY12硬铝合金材料的加载-再加载和加载卸载,获得了LY12在不同预冲击状态下的一维平面应变波传播信息,利用Lagrange路径线法得到了对应状态下的应力应变曲线,进而采用上下屈服法得到了其在不同应力水平下的剪切强度。结果表明在低应力作用下,材料的剪切强度是不可忽略的,而且其随纵向应力的增加而增加

Co-seismic ground deformation of Yushu Earthquake detected with D-InSAR technique

An earthquake of magnitude 7.1 suddenly occurred in Yushu county of Qinghai province on April 14, 2010. This paper presents the studies of using the data of Advanced Land Observing Satellite-Phased Array type L-band Synthetic Aperture Radar (ALOS-PALSAR) before and after the earthquake to examine and calculate the co-seismic ground deformation. The differential SAR interferometry (D-InSAR) technique is used. The results show that the earthquake caused the ground deformation over a large area. The extension of the ground deformation followed the south-east to east direction and along the Yushu-Ganzi fault zone. The largest deformation was found about 350 mm at 33.7°N 96.81°E. It is along the line of sight (LOS) of SAR and can be detected with D-InSAR technique. The detected ground deformation was mainly uplifting. The detected ground deformation has an important value for evaluating the extent of ground damage and seismicity in Yushu after earthquake, inferring the nature of the quake faulting, and studying characteristics of seismic deformation. 2010-04-14青海玉树发生7.1级地震后, 作者利用震前和震后获取的日本ALOS卫星PALSAR遥感数据, 开展了差分干涉雷达(D-InSAR)地震同震形变测量与分析。结果表明: 玉树地震引起较大范围地表变形, 地震变形沿玉树—甘孜断裂带向南东东方向扩展, 在N33.7°, E96.81°附近达到最大形变量, D-InSAR监测到雷达视向上的最大形变量为35cm。地表形变特征对于评价玉树地震破坏程度、推断断层性质、研究地震形变和地震孕育特征具有重要的参考价值

什么是财务会计的本质、特点及边界——美国上市公司财务欺诈案件引起的思考

“新经济环境下的会计与财务问题研讨会”会议论文。会议时间：2002.10.25-2

开放会议文献资源的采集和跟踪

为实现对开放会议文献资源的有效采集和跟踪，调研开放会议文献资源现状，分别从资源类型特点、发布主体、资源发布网站特点、组织方式、资源格式、版权要求等方面对开放会议文献资源情况进行系统分析; 根据会议文献资源类型和来源的不同，拟定资源采集的方案，包括采集原则、采集对象、采集参数、采集途径等; 最后根据资源出版方式、主体和周期的不同，提出针对性的资源跟踪和发现的方法

Shaping the Urban Traditions: Architectural Education on Open Building 3

The problem of modern cities is nevertheless methodological rather than formalistic. The problem urban design today is extremely exclusive – the dimension of TIME and INTERACTION of people, the two basic elements constructing the traditional cities, are largely ignored. This paper introduces the students implications of Open Building thinking into urban design