查询词典 unitarily equivalent representation

On the basis of equivalent planar pitch,the tooth profile of the equivalent gear was gotten through simulation when the pitch curve of the gear shaper rolled on the equivalent planar pitch curve.

以平面当量节曲线为基础，通过确定插齿刀的节圆沿平面当量节曲线做纯滚动时插齿刀上各点的运动轨迹，模拟了插齿加工包络出当量齿轮的齿形过程，将非圆锥齿轮的设计转化为平面齿轮的设计，简化了非圆锥齿轮的设计。

The dynamic model and equivalent circuit are researched, A dynamic model and equivalent circuit in d-q frame of dual three-phase synchronous machine are presented for the first time, based on the analyzing of the inductance factor between the windings of synchronous machine under ideal conditions. From them, a dynamic model and equivalent circuit that has general significance is educed.

基于理想同步电动机模型，以相绕组为研究对象，对双电枢绕组同步电动机的动态数学模型进行了研究，首次推导出双电枢绕组同步电动机在d-q坐标系的动态数学模型，绘出了d-q坐标系等效电路。

Also, the performance of four techniques, using different approximation to estimate the equivalent peak value of shear stress and strain were investigated for the purpose to determine the equivalent shear modulus, damping, excess pore water pressure and residual strain induced by seismic loading, in which the equivalent peak value was computed in terms of its standard deviation and the corresponding peak factor.

利用上述动力有限元程序分别对水平地基进行了总应力、不排水有效应力和排水有效应力随机动力响应分析，并通过4种不同的方法来计算地基的等效剪切模量、阻尼比、振动孔压和残余剪应力。

The equivalent stress nephograms, the variation rule of pipe displacement and stress on the bellow pipe under expansion were obtained. It was found that the stress and strain of the pipe were symmetrically distributed over the geometric shape of the pipe,the equivalent stresses and equivalent strains at different points of the pipe varied with the curvature radius.

模拟了井眼中波纹管的膨胀变形，得到了波纹管施工加压膨胀和井壁接触过程中的等效应力分布云图、波纹管的位移、应力变化规律，以及波纹管膨胀后和井壁的接触状况。

There are few equivalent circuit modeling methods for UWB antennas. This thesis compares the characteristic of some existing modeling methods and presents a general and precise modeling method for UWB antennas. Firstly, establish the narrowband model of the antenna, and compute the difference between input admittances of the antenna and its narrowband model. Secondly, implement rational approximation of the difference to build the macromodel, and convert it into SPICE equivalent circuits. Lastly, combine the narrowband model and the macromodel to form the ultimate equivalent circuit model of the antenna.

本论文针对目前UWB天线等效电路建模方法比较少的现状，结合现有的天线建模方法的一些特点，研究了一种系统通用、模型精度高的新建模方法：首先建立超宽带天线的窄带模型，计算天线及其窄带模型导纳的差值；接着对差值进行有理多项式拟合，得到相应的宏模型，并转化为SPICE等效电路；最后合并窄带模型与宏模型电路，得到天线等效电路模型。

For example, the viscosity anomalies observed in theextremely dilute concentration region and the enhancement of Huggins coefficientof short polymer chain and branched polymer, have not been interpreted unitarily.

例如极稀浓度区粘度特异行为的出现，短链和支化高分子的斜率常数的异常增大，都没有统一的理论解释。

The thesis are divided into four parts: chapter 1 is telling the background of La Traviata and the composer"s mentality; chapter 2 is telling how to perform Violetta on the basis of the musical and dramatic factors; chapter 3 is telling the greatness and tragic of the character Violetta; chapter 4 is telling unitarily the artistic charm of the character Violetta,, and her artistic value to the opera La Traviata and even to Verdi"s other opera works.

全文共分为四大部分：第一章主要交待《茶花女》的创作背景和创作心理；第二章主要从音乐和戏剧两因素分析作曲家如何对薇奥莱塔人物形象进行塑造和演唱者如何进行二度创作；第三章，主要从美学角度分析薇奥莱塔形象的"崇高"和"悲剧性"审美价值；第四章，从"薇奥莱塔"歌剧形象看威尔第歌剧的独特艺术魅力。

Based on the explicit formulation of matrices on the given linear manifold, the general expression of the solutions to this least squares problem is obtained by using the method of the singular value decomposition and the unitarily invariant of the Frobenius norm.

在推导出所给线性流形中任意矩阵的显式表达的基础上，利用奇异值分解和Frobenius范数的酉不变性得到了该最小二乘问题通解的一般表达式。

The matrix operator norm and unitarily invariant norm are two important normclasses.

0引言矩阵的算子范数和矩阵的西不变范数是两大类不同的重要范数类。

In this paper, we first show that the matrix2-norm is the only norm which is not only an operator norm but also a unitarily invariantnorm.

在［l，p.94］中曾提到，向量作为矩阵看待，归范化的西不变范数只有2一范数，本文将这一结论推广成，一个矩阵范数如果它既是算子范数又是规范化的西不变

It's not quite as simple as that.

并没有那么容易。

It debuted in 1992 in Japan and the United Kingdom, and 1993 in the United States.

它首次亮相于1992年在日本和英国，在美国1993年。