变换

However, because of the positive sequence of fundamental frequency, there are still some shortages for wavelet transform in the use of harmonic measurement of three-phase dissymmetrical system. A new approach of harmonic measurement based on Period-interleaving of MALLAT arithmetic for dissymmetrical system is put forward. Analysis and experiment based on TMS320LF2407 Digital Signal Processor are made. And the result of experiment reveals that the proposed method based on Period-interleaving is valid in the use of harmonic measurement of three-phase dissymmetrical system.

但是，目前小波变换在三相不对称系统的谐波检测中存在着无法分离基波正序信号的不足，本文就此提出了一种用于三相不对称系统的基于周期交错的小波MALLAT多分辨率分解的测量方法，详细介绍了该算法的原理、流程及计算公式，同时以TMS320LF2407数字信号处理器为核心建立了实验系统对该算法进行了实验，实验结果证明该周期交错－小波变换算法可以有效地检测出三相不对称系统中的有害电流。

Since CGH is not real-time available,many scholars are studying the real-time applications of CGH with modern display devices, such as liquid crystal display, The applications include, real-time pattern recognition using liquid crystal display based joint transform correlator, CGH interferometric technology for anti-counterfeiting, and real-time application of Furrier transform CGH.

但由于存在不能实时实现的弱点，许多学者用现代显示器件进行了计算全息实时应用研究，如：光学联合变换滤波器图像识别技术，实时计算全息干涉防伪技术，傅里叶变换实时全息图应用。

For the linear discrete stochastic descriptor systems with multisensor, using me smgu, ar value decomposition, it is transformed into two reduced order subsystems, and a new fusion method of constructing the original state fuser based on the transformed state fuser is presented.

对于带多传感器的广义线性离散随机系统，应用奇异值分解，将其变换为等价的两个降阶多传感器子系统，提出了基于变换后的状态融合器构造原始状态融合器的新的融合方法。

The first proposal still keeps on using the same Fast Walsh Transform as used in the decoding process for 5.5 and 11 Mbps data rates. The FWT of the second proposal has been modified to adapt the increased data rates of 16.5 Mbps.

两个方案的编码过程变化不大，第一方案的译码还是采用对5.5和11Mbps数据率所使用的快速WALSH变换，第二个方案的译码被修改成适合于16.5Mbps数据率的快速WALSH变换。

By making use of standard transformation and selecting proper gauge transformation conditions, I try to solve the time dependent Schringer equation and derive the exact solution. Under the population representation.

然后采用规范变换的方法，通过选取适当的规范变换条件求解含时Schrodinger方程，在粒子数表象中求得了精确解。

Two fundamental concepts are intro- duced:exact Yang-Mills equation and characteristic transformation of Yang-Mills gauge fields.

对于这种恰当的YM-方程，构造了一类线性微分变换，称之为SU(2)规范场的示性变换。

In or-der to keep the form of the Lax operator for AKNS hierarchy,there are twochoices for each type of gauge transformations,which just results in two classesof functions used to trigger the gauge transformation.

为了保持AKNS系列的Lax算子形式，两种类型规范变换都存在两种选择，这正好导致用于制作规范变换的两类函数。

Then we in-vest gate Seiberg-Witten map, which defines the equivalence relation of the gauge symmetries in different spaces. We also analyse the U gauge electromagnetic field in noncommutative space. Finally we discuss the ambiguities of Seiberg-Witten map, and find although that some part of the ambiguities can be absorbed by gauge transformation and hence negligible, the existence of the matter field makes some other parts difficult to be absorbed by gauge transformation or field redefinition.

然后利用Seiberg-Witten映射，我们研究了不同空间的规范对称性的等价问题，并对非对易空间的电磁场进行了微扰分析，最后我们对Seiberg-Witten映射的松动进行了讨论，研究发现这些松动中的一部分可以由规范变换吸收因而是可以忽略的，由于物质场的存在，另外一部分很难用规范变换和场的重定义吸收。

During the transition from global gauge transformation to local gauge one,field interaction undergoes a 'nothing'-to-'something' change,thus affecting gauge invariance.

当使自由粒子整体规范变换向局域规范变换过渡时，场的相互作用发生了从"无"到"有"的变化，规范不变性遭到了破坏。

For the timelike surfaces with constant positive Gaussian curvature (K=1) in R〓, we construct the correspondence between R〓 and sl (2, R), and deduce the fundamental equations for a special choice of the velocity of motion of time-like surfaces in asymptotic coordinates under suitable conditions, meanwhile, we give the B〓cklund transformation and one soliton solution of the evolution equations, then in terms of a gauge transformation we obtain the explict expression of the motion of surfaces.

对于三维Minkowski空间R〓中具有正常高斯曲率（K=1）的类时曲面，取定特定速度，在以渐近线作为坐标曲线的情况下，曲面运动满足两个基本方程，即sinh-Gordon方程和θ随时间演化的方程（其中θ表示两条渐近线之间的夹角），同时给出两个基本方程的B〓cklund变换和单孤子解，并通过规范变换给出相应的正常高斯曲率曲面的显式表达式。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。