查询词典 point

Supports object snap, end point, middle point, center point, intersection point and etc...

支持对象的管理单元，终点，中间点，中心点，交叉点和等。。

This is a project to use the three-dimensional space vector/point type and related functions, they can be defined using a space vector/point, the realization of vector translation, scaling and rotation, the use of correlation function can also be the realization of the two vectors fork x, the absolute length of a vector, a vector unit, and get a three-point decision to the vertical plane of the vector, be the distance between two points in space, by the two vectors point multiplication by the two vectors angle, such as operations, for the use of user-friendly, each function are detailed notes, I hope all of you useless.

详细说明：这是一个项目时使用到的"三维空间向量/点"类及相关函数，使用它们可以定义一个空间向量/点，实现向量的平移，缩放和旋转等，使用相关函数还可以实现两向量的叉乘，得到一个向量的绝对长度，将一个向量单位化，得到一个三点决定的平面的垂直向量，得到空间中两点的距离，得到两向量的点积，得到两向量的夹角等操作，为方便用户的使用，每个函数都有详细的注释，希望对大家有所用处。

The median voter theorem is a mathematical result that shows that if voters are choosing a point along a line and each voter wants the point closest to his most preferred point, then majority rule will pick the most preferred point of the median voter.

中值选民定理是一个数学结论，这个结论表明如果要选民沿着一条线选择一个点，而且每个选民都想选离他最偏好的点最近的点，那么多数规则将选出中值选民最偏好的点

Oilcan is a kind of typical rigid target with big backscattering coefficient, which takes on point figure if the resolution of SAR image is not very high; these point targets to be recognized gather together, and form a target region with some distribution area; the center of the region appears as a beeline, and the speckle noise appears scattered, therefore, considering the different grey distributions between point target and speckle noise region and the space geometry distribution, these point targets can be recognized by this algorithm.

由于在高分辨率情况下，合成孔径雷达图像中油罐个体的散射分别体现为由若干高亮度点围成的椭圆，待识别油罐目标的模糊边缘呈不连续的椭圆状，因此从二值化后的SAR图像中识别出拟目标的不连续边缘，判断其是否满足目标边缘特性来识别出最终结果，采用该方法解决了这类高分辨率下椭圆状目标的识别问题。本文运用了基于Gauss核函数支持向量机的SAR图像典型目标识别方法。

The paper holds the idea that, parallel bus can;t adapt to high-speed transfers due to self-limitations, and high-speed serial point-to-point bus will substitute for traditional parallel bus; data transfer will not be carried out simply by drive circuit and parallel bus, but by special high-speed serial bus; the traditional mode of single bus loading multi-device is disappearing, and a centralized switch module is replacing the bus function in a mode of one switch module connecting all devices via high-speed point to point serial bus.

文章认为并行总线由于自身缺陷，已经不适合进行高速传输，高速串行点对点连接将代替传统的并行接口；数据交换也不再是简单地通过驱动电路和并行数据线进行，而是通过特殊的串行高速总线连接；传统的在一条总线上同时挂载多个设备的模式正逐渐消亡，总线功能已被一个集中式的交换模块取代，而交换模块和各个设备都是通过高速串行点对点的方式进行连接。

This is our frist individual video, this time, present by Steven from HKPA, he will show us what's the true Parkour, point to point. From point a to point b, use the most factional and prestissimo movement, save, qiuck, and functional, no trickz and find your own way.

這是我們飛躍道的第一條個人影片，今次是我們的隊員濤，這條影片的主要是Parkour的本意：點對點的路線性Parkour，用最快，最實用的方法越過障礙，由一點到一點，濤在這條影片中就示範了這個Parkour的根本，不花巧，實在的用最快最簡單的方法去走自己的路。

Combine with the characteristic of saddle point in matrix, the paper propose two algorithms to solve the saddle point , such as the method of search in turnand the equal of multi saddle point. And describe the thinking and corresponding code of the algorithm in detail, especially, the method of equal of multi saddle point is proved.

结合矩阵中马鞍点的特点，给出了求解矩阵中的马鞍点的依次搜索法和多马鞍点相等法，详细叙述了它们的算法思想，特别对多马鞍点相等法的理论基础做了证明，分别给出了对应的算法。

Angular spectral is spectral value map formed by estimating semblable coefficients of fast and slow shear wave or the variation of amplitude ratio of fast and slow shear wave with times and angles at a specified space point based on semblable theory of fast and slow shear wave, the angle value of this space point at a given time can be got by picking the maximum of angular spectral; the study reveals that fast and slow shear wave with different polarization direction should be separated using different rotation formula, eight formulas of separating fast and slow shear wave using clockwise rotation and counterclockwise rotation have been derived, and gained energy assignment rule and phase coincidence rule, in real data estimation, the rotation formula used for separating fast and slow shear wave can be uniquely determined on the two discriminating rules. On the basis of semblable theory of fast and slow shear wave, the delay time corresponding to the maximum of semblable coefficients at a specified point in a given time window is the delay time of fast and slow shear wave, delay time section of fast and slow shear wave can be got by moving space point and smoothing time window. The vertical variation values of delay time of fast and slow shear wave reflect the effect degree of vertical fractured reservoir on fast and slow shear wave which is defined as anisotropic coefficient, and section map of anisotropic coefficient can be obtained.

角度谱就是利用快慢横波的相似性原理，在某一空间点求出快慢横波的相似系数或快慢横波的振幅比值随着时间和角度的变化而形成的谱值图，拾取其极大值就得到该空间点某一时间的角度值；在研究中发现分离不同偏振方向的快慢横波应该采用不同的旋转公式，推导出了利用顺时针旋转和逆时针旋转分离快慢横波的八个公式，并给出了能量分配准则和相位一致性准则两个判别准则，在实际计算中利用这两个判别准则能唯一地确定分离快慢横波的旋转公式；根据快慢横波的相似性原理，在某一给定点和给定时窗内最大相似系数对应的延迟时间就是快慢横波的延迟时间，随着空间点的移动和时窗的滑动就可以得到快慢横波延迟时间的剖面图；快慢横波延迟时间与慢横波传播时间的比值定义为裂缝密度，并求出了裂缝密度剖面图；快慢横波延迟时间纵向上的变化值的大小反映了纵向上裂隙层对快慢横波影响的大小，定义为各向异性系数，并求出了各向异性系数的剖面图。

In this process, the discharge process of single point to point contact is transformed to the process of both point to point contact and the overall surrounding contact of sphere Ni through the self redox reaction, thus making a highly efficient electron transfer process. In this dissertation, the catalytic electrolysis mechanism is discussed. The influence of various parameters (e.g. kind and concentration of catalyst, reaction temperature and electrolysis duration) on electrolysis were investigated.

本文首次提出了以KMnO_4为代表的高锰酸盐作为电解过程电子传递的媒介，通过锰盐自身氧化还原反应的参与，在阳极和溶液中的球形Ni_2之间建立起高效的电子转移过程，使球形Ni_2和阳极之间单一的固体之间的点点接触放电，转变为点点接触放电和球镍与溶液全方位包围接触放电过程，大大提高了电解过程的效率。

It is shown from this thesis that flow fields on synoptic maps can be decomposed into rotation and deformation fields. Geostrophic non-frictional cyclone and anticyclone vortex patterns are closed circulations around the center point, streamlines of frictional cyclone and anticyclone patterns have spiral forms around the focus point. Saddle fields have four vortex centers (two cyclones and two anticyclones) and a saddle point. Blocking high pressure and cut-off low pressure patterns consist of a vortex center and a saddle point.

本文说明了天气图上的流场可以分解为旋转场和变形场：地转无摩擦的气旋、反气旋的涡旋型式是围绕中心点的闭合环流；考虑摩擦的气旋、反气旋的流型是围绕焦点的螺旋型式；鞍型场有4个涡旋中心点（2个气旋和2个反气旋）与1个鞍点；阻塞高压和切断低压由1个涡旋中心点与1个鞍点组成。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。