查询词典 unitary invariant

The method also can be combined with J_2 invariant conditions and be described by osculating orbit elements.Finally,the results indicate that the formation drifts are greatly reduced with the optimized initial mean anomaly.And the drift of formations set up in osculating elements is decreased by(81.8681) percent,compared with that in mean elements,which proves the feasibility of this optimization design.

仿真算例表明：优化设计结果可以明显降低大椭圆轨道编队卫星的相对漂移量，与平根数描述的编队初始条件的设计结果相比，相对距离极大值点的漂移量降低约81.8681%，验证了基于主星平近点角初值的大椭圆轨道编队优化设计方法的可行性。

Then,based on these surface atoms 3D coordinates,uses the rotational invariant of spherical harmonic to simulate the protein surface.Through using this method,can effectively overcome the problem which should recomputed the protein surface continues during the space conversion.

在提取出的表面原子基础上，引用球函数具有的旋转不变性的特点，进行蛋白质表面形状的模拟，模拟出的蛋白质表面可以有效克服蛋白质在空间变换过程中需要不停进行重新计算表面问题，从而有效地提高了计算效率。

Based on present researches,by means of modern measurement and analysis techniques,systemic laboratory experiments,field investigations and through theory researches were conducted.And following are the major points and achievements presented in this dissertation:①The micro-convexity on fracture plane was studied.Analyzing and comparing the static attribute and dynamic variation of natural fracture with the artificial,untreated fracture,artificial and scabbled fracture as well,making out the criteria that artificial and scabbled fracture simulate natural fracture.②We take the effect of all the three primary stresses and stress invariant into account in the Lade-dbl yield criterion,which can preferably reflect all the yield and destruction characteristic of the rock material.

结合裂缝性储层应力敏感性研究现状，利用现代化测试手段，通过系列的室内实验以及深入的理论探讨，本文取得的研究成果包括以下几个方面：①从裂缝面上的微凸体入手，分析和对比了天然裂缝、人工但未经过处理的裂缝，以及经过粗化处理以后的人工裂缝的静态特征和动态变化，指出了经过粗化处理以后的人工裂缝模拟天然裂缝的依据；②Lade双曲服面屈服准则考虑了所有三个主应力或应力不变量对屈服与破坏的影响，能够较好的反应岩石材料的所有屈服和破坏特性。

Compared with the original contourlet transform, it is shift-invariant and can overcome the pseudo-Gibbs phenomena around singularities.

与原始的Contourlet相比，它是频移不变的，能有效克服Contourlet变换中的伪吉布斯现象。

Concrete cotent:In foreword,The author introuduces the conceptional fixing about " Mongolian clans original legend "; domestic and overseas study situation ; the meaning of the study ; research purpose .In chapter 1, Mongolian clans original legend's content summary , motif variation.In chapter 2, The author investigates some problems about the wolf、 the deer 、 the catele 、 the swan 、 the owl and the tree ,which is involved Mongolian clans original legend , whether have relation to clan totemism or not.In chapter 3, The author investigates the key element of invariant content about the ancestor stems from " human " and " heaven " in Mongolian clans original legend .

具体内容为：导论：&蒙古族诸氏族起源传说&的概念界定、国内外研究状况、选题意义及研究目的；第一章：蒙古族诸氏族起源传说的内容概要、母题变异；第二章：蒙古族氏族起源传说中所涉及的狼、鹿、牛、天鹅、猫头鹰、树木与氏族图腾崇拜是否有关等诸问题探析；第三章：蒙古族氏族起源传说中祖先源于&人祖&、祖先源于&天&等变异内容要素探析。

Firstly, the approach to recognize planar polygon by local invariant features based on cross-ratio is proposed.

在面向形状的目标模型识别方法研究方面，提出了两个模型匹配的应用算法。

As a geometric invariant under projective transformations, cross-ratio is the basis of many recognition and reconstruction algorithms.

交比不变性在此类投影转换中，扮演了一个重要的角色。

To study the calibration accuracy of stuctured light system based on cross-ratio invariant,measuring error and light-plane calibration error of system are analyzed,and an error propagation model is established by employing theories of error and matrix disturbance.

针对基于交比不变原理的结构光光平面标定方法，利用误差分析理论和矩阵扰动原理分别对系统的测量误差和光平面标定误差进行分析，提出了结构光测量系统的误差传递模型。

A novel pattern was designed for the calibration of structured light vision. The calibration is realized with the Zhang camera calibration method and cross-ratio invariant ruler of projection conversion.

设计了一种新型平面靶标，基于Zhang摄像机标定法和投影变换中的交比不变性，进行结构光视觉传感器系统的标定。

Keeping baryon density invariant, the fractions of hyperons at S = 2 are largerthan those at S = 1 in the region of relative low density of baryons.

给定重子密度，中子在S=2时的组分比S=1时的小，而质子、电子、μ子在S=2时的组分比S=1时的大，特别是在低密度区域。S是每个重子的熵。

Metrorrhagia is also gynaecological problems of common diseases.

崩漏是妇科常见病也是疑难症。

WordFTP gives you the convenience and timesaving you need.

wordftp让您的方便和省时您所需要的。