2) Vector boundary
矢量边界
1.
Because change plots tone, which is detected automatically by dynamic monitoring of Land use, distributes in a definite range, in order to extract change information efficiently, change plot and its surroundings are bi-valued using technology of image processing of Photoshop, and vector boundary of change plot is drawn automaticaly by vector arithmetic of similar four directions in this paper.
然后,对比其它方法处理得到的变化信息对提取的矢量边界进行编辑处理,提高数据室内处理精度。
3) GIS Vector Edge
GIS矢量边界
1.
Study of GIS Vector Edge Update Method Based on Prior Knowledge;
基于先验知识的GIS矢量边界更新方法研究
4) vector boundary advancing
矢量边界推进
1.
We present a method,vector boundary advancing method,to generate unstructured triangle meshes,and prove its feasibility.
提出二维矢量边界推进生成非结构三角形网格方法并证明其可行性。
5) ocean border vector data
海洋边界矢量
6) vector absorbing boundary condition
矢量ABC吸收边界
1.
To reduce reflection of CPML undersurface,we employ vector absorbing boundary condition(ABC) as undersurface that can absorb scattering wave well under small disturbance of scattering field.
数值算例表明,这种按层积分CPML结合矢量ABC吸收边界的方法,吸收效果好,计算量小,效率高;具有良好的应用前景。
2.
Conformal PML backed by vector absorbing boundary condition
共形完全匹配层是一种有耗各向异性媒质组成的凸且光滑的壳体,其底面一般是PEC面或PMC面,但是PEC面或PMC面会对原散射场产生反射;为了减少底面反射,将CPML原有的PEC(或PMC)底面改为矢量ABC吸收边界,并给出了带矢量ABC底面的CPML泛函公式。
补充资料：伯格斯矢量
分子式：
CAS号：
性质：是位错尺寸的量度。当位错在晶体内滑动时，原子沿着某一特定的方向相对于其邻近原子切变了某一特定的距离，表示这种原子位移的矢量定义为位错的伯格斯矢量。对螺型位错，位错线平行于伯格斯矢量；对刃型位错，位错线垂直于伯格斯矢量；对于混合型位错，位错线斜交于伯格斯矢量。
CAS号：
性质：是位错尺寸的量度。当位错在晶体内滑动时，原子沿着某一特定的方向相对于其邻近原子切变了某一特定的距离，表示这种原子位移的矢量定义为位错的伯格斯矢量。对螺型位错，位错线平行于伯格斯矢量；对刃型位错，位错线垂直于伯格斯矢量；对于混合型位错，位错线斜交于伯格斯矢量。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条