【摘 要】
:
Earthquake disaster risk,as a typical social disaster risk,is one of the most important risks in modern Chinese society.This study gives definitions of the institution,describes the formation history,
【出 处】
:
Earthquake Research in China
论文部分内容阅读
Earthquake disaster risk,as a typical social disaster risk,is one of the most important risks in modern Chinese society.This study gives definitions of the institution,describes the formation history,the connotations and development and analyzes its ro
其他文献
从集成成像三维获取技术出发,利用光线追迹的方法,理论分析了元素图像阵列中同名像点之间的关联性,得到了同名像点之间的等差关系,并利用此关系式对光学获取的元素图像阵列提取的同名像点的结果进行筛选,去除误差大的配准结果,从而提升同名像点的配准精度。光学实验结果显示,对于同一物体进行三维获取,经本文的集成成像同名像点自筛选技术得到的结果是500mm,相对误差为0.4%;而传统技术重构得到的结果为502mm
在采用伪随机序列生成彩色条纹作为投影图像的基础上提出了一种对彩色伪随化编码结构光三步解码新方法。首先,建立向量梯度算子将Canny算子推广到彩色多通道图像,对彩色带状图像进行彩色边缘检测,确定边缘特征的位置信息;其次,采用引导式K-means聚类算法和颜色分辨能力较强的颜色不变量对图像进行颜色识别和分类,继而获得边缘特征的颜色信息;最后,提出分步窗口匹配算法对边缘特征序列进行匹配,从而确立拍摄图像
针对当前环状编码标记点(CCT,circular coded target)的提取与识别算法效率、识别率较低的问题,提出了一种高效提取与鲁棒识别算法。介绍了编码标记点的特征及编码方式,采用提出的六点法获取目标点近似成像中心、边缘检测和椭圆拟合及边缘筛选,实现CCT的提取;根据CCT的仿射变换不变性提出的等分椭圆内切圆法,实现CCT的识别。对提出的算法进行了实验验证,结果表明,提取算法可有效剔除干扰
目的:利用单一图像重建古建筑,简化从2D照片恢复3D几何结构方法中无穷解的情况。该方法可以应用于观光、游戏、娱乐业中的古迹恢复。创新:简化从2D照片恢复3D几何结构过程中无穷解的情况。对特定建筑风格生成的组件库可以应用于相同风格的其它古建筑的重建。方法:本文主要以泰姬陵为例分析。首先,沿边界多面体和多面体之间的邻近关系利用合适的局部平面基元自动重建初始模型。然后,利用建模软件人工推断装配并调整模型
茉莉素(jasmonates,JA)是一类重要的植物内源激素,有着广泛的生物学功能,在植物的生长发育、抵抗逆境胁迫的过程中扮演着重要的角色。本文将对茉莉素调控植物生长发育的功能及相应的分子机制做简要的综述。
By the aftershock frequency estimation method based on the calculation of coseismic static Coulomb stress changes and rate-and state-dependent fault constitutive law,we calculate the frequency of "dir
Since the 20 thcentury,the time intervals of M ≥6.7 strong earthquakes in the SichuanYunnan region show obvious regularity.Using the years of the strong events,a twodimensional time coordinate system
The source parameters of the Yingjiang earthquake sequences in 2008 are obtained by applying spectral analysis and Brunes source model,based on the digital waveform data recorded by the Yunnan Digita
The regional tectonic background and characteristics of active faults of the Yutian MS7.3earthquake on February 12,2014 are discussed in this paper.After the analysis of the epicenter area of the MS7.
The regulation of the National Significant Seismic Monitoring and Protection Regions(NSSMPR for short) is defined by the Law of the Peoples Republic of China on Protecting Against and Mitigating Eart