查询词典 knick point

On the basis of the conclusion above, the nonlinear weak controllable vectors can be obtained, which compose the second class of weak controllable matrix, by means of matrix transfermations of the first class of weak controllable matrix. Furthmore the second criterion of weak controllability, accessibility and strong accessibility, which is more standard, more succinct and more practical, is obtained. On the basis of the first criterion and the second criterion, several important problems about nonlinear controllability are discussed, which include 1 local controllability; 2 three classes of local controllable decomposition, separately by means of local coordinate changes in the neighborhood of a nonsingular point, a point on a singular surface or a designated point x〓 with a designated input u〓; 3 the character of controllability of the ith state variable x〓 in different controllable areas and their boundaries.

在第一判别定理和第二判别定理的基础上，我们分析了非线性系统受控性质中的几个重要问题，所得到的结论包括i得到了非线性系统在可平衡点附近的能控性判别定理；ii分别给出了非线性系统在非奇异点、s阶奇面以及在状态空间内给定的一点x〓和输入u〓上的三种状态分解形式以及相应的求解方法；利用系统的Ⅰ型弱能控矩阵与Ⅱ型弱能控矩阵秩相等的条件，得到了只用系统的前n个弱能控向量来判断系统的弱能控性的判别定理；iii通过引入系统状态分量的三类受控区域边界的定义及相应的求解方法，初步探讨了非线性系统各个状态分量在不同的受控区域及其边界上的受控性质。

However, since the fixed-point calculation maybe cause cumulative quantization error, the convergent performance of fixed-point equalizer is not better than that of floating-point equalizer.

但由于定点数运算会引起量化累积误差，均衡器的收敛速度比浮点数运算均衡器的收敛速度要慢，收敛后的稳定性也较差。

Personal e-commerce applications in a straight line from the current point-to-point multi-point approach to the development of the smart.

个人对电子商务的应用将从目前点对点的直线方式走向多点的智能式发展。

A point-to-point link, the main task of which is to transport data from one point to another.

一种点到点链路，主要的任务是将数据从一点传输到另一点。

A detection method of double-threshold constant false alarm movement object on double-base synthetic aperture radar includes finalizing distance compression of various pulse-sampling, dividing orientation time to be multiple CPI, carrying out FFT in each CPI to enter orientation frequency domain, comparing data amplitude of frequency channel at external of clutter region with the first threshold and outputting point trace, making coagulation on point trace, making Hough transform in point trace domain and making decision of the second threshold.

本发明涉及一种用于双基地合成孔径雷达的双门限恒虚警运动目标检测方法，其特征在于：1对每个脉冲采样完成距离压缩；2把方位时间分割成多个相干处理间隔；3在每个CPI内做快速傅立叶变换进入方位频域；4把杂波区外的频率通道的数据幅度和第一门限比较做判决并输出点迹；5点迹凝聚；6在点迹域做Hough变换并做第二门限判决。

This extends the feature point from a simplex point to a feature region. Based on these concepts we suggest a new kind of broad sense feature point definement.

首先本文提出了广义特征点和狭义特征点概念，将特征点从单纯的点拓展到特征区域。

According to this characteristic, the search matching method of this diagonal line in this calculation is to regard the main diagonal lines as the superior searched route, discard the elements far from the main diagonal lines and it won't generate matching matrix when actually realized. Just regard the present search point as the start point, search matching elements at the small rectangle from the bottom right, regard the element when found as the new start point, so this can happen repeatedly until the ends of the two strings.

根据这个特点，本算法中的对角线搜索匹配算法以主对角线为优先搜索路径，抛弃了离主搜索路径太远的元素，实际实现时，并不需生成匹配矩阵，只以当前搜索点为起点，向右下方向一个小矩形区域上搜索匹配的元素，找到匹配的元素后即以该元素为新的起点，这样无回溯地重复进行直到两个串的未尾为止。

For non linear adjustment Color Temperature and Exposure Actions support You can using Automate batch and Actions for images processing Correct Underexposure Overexposure and Green color disbalance Auto correction by gray point Just click on point which must be gray or white Auto photo filters detection You can receive information about recommended photo filters after correction Precision algorithm with floating point Very accurate color space convertation ......

能校正曝光不足、感光过度和绿色不均◆使用灰点自动修正：通过点击灰色或白色点来进行修正；◆自动照片过滤器检测：修正后，可以得到所推荐照片的过滤器相关信息。主要特征：支持24位或48位图片；支持Adobe Photoshop CS 48bpp 层；根据supersampling算法可高质量预览图片；精确的浮点算法；能校正曝光不足、感光过度和绿色不均等等。。。。。PS的色温修正插件。如果你厌倦了糟糕的扫描或者拍摄结果，而又想要节省时间与金钱，可以试用该插件。该插件并不是一个简单的颜色修正器！它使用了科学的色彩空间和白色点转换机制。推荐！！！

The construction precision control point of chord surveying method for ballastless track ballast bed is introduced, including design of control system, layout of chord point, rational range of circle distance, control point of laying track and chord surveying.

介绍了无碴轨道道床竖曲线弦测法施工精度控制要点，即控制体系的设计，弦线点的设置，矢矩的合格范围以及轨排铺设和弦线量测的控制要点。

The method for the point sets selection of point Hough transform and the scan direction for image of searching the point sets were improved by using the geometrical characteristic of the concentric circles:The center of the concentric circles was obtained in the accumulative array firstly,radius was obtained by the mean of distance between the circle center and every edge points afterwards,both the circle center and the edge of the concentric circles were detected accordingly.

利用同心圆的几何特点对点Hough变换边缘点的点组选取方法和搜索点组的图像扫描方向进行了改进：首先由累加阵列确定同心圆的圆心，然后由圆心到各个有效边缘点距离的均值求出半径，从而检测出同心圆的圆心与边缘。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48