查询词典 vector density

The key point of this paper made a study of the application of FDTD method to dispersive, nonlinear materials. Two methods are introduced to deal with the relationship between the electric flux density vector and the electric field vector: auxiliary differential equation method and Z transform method.

本文的重点在于研究时域有限差分法在非线性色散媒质中的应用，主要采用了两种方法来处理电通量密度矢量D和电场强度矢量E之间的关系：辅助差分方程法和Z变换法。

Considering the information distribution on the decision makers′ preference,the problem of density weighted averaging middle operator in uncertain multiple attribute decision making is investigated to find out the procedure to determine the weight vector of interval number density operator by extending the middle operator of density of real numbers to that of interval numbers.

针对群决策中的决策者群体偏好信息分布问题，研究了不确定多属性决策密度中间算子，把实数密度中间算子扩展到区间数密度中间算子。

We describe density matrix as a vector in this space,that is,to drawout the vector expression in this space.

我们把密度矩阵描述为该空间中的向量，即给出密度矩阵的向量表示，然后将一系列的纠缠判据纳入到一个清晰的几何框架中。

In order to discuss the property of the ambiguity residual error vector, the joint probability density function between the integer ambiguity solution and the ambiguity residual error vector is also introduced in this section.

为了讨论模糊度残差向量的性质，本文也介绍了模糊度整数解和模糊度残差向量的联合概率密度函数。

The constitutive equation between current density vector and electric field strength vector is tranformed into s-domain by the principle of Laplace transform,and the inverse Laplace transform is adopted for the explicit equations between them in time-domain. Finally through exponential time stepping,the FDTD iteration equations are obtained,which can be easily solved in discrete-time-domain.

该方法是将电流密度矢量与电场强度矢量之间的本构方程基于拉普拉斯变换原理转到复频域，然后再逆变换到时域得到它们之间显式的方程，最后再结合指数差分，得到离散时域的显式的FDTD迭代方程，解决了本构方程中电流密度矢量的分量相互耦合而不易直接离散的困难。

Through simulation, the size of the filter template affecting on filtering imaging is investigated, the filtering effects of second mean filtering method and vector filtering method at the same size of filter template is comparised, the curve distribution of power spectral density of second mean filtering method and vector filtering method is analyzed.

仿真实验研究了滤波模板的大小对滤波效果的影响，比较了在同样模板的选取下向量滤波方法与二次均值滤波法的滤波效果，分析了向量滤波方法与二次均值滤波法的功率谱密度分布。

It shows the phase image filtered by vector filtering method which can decrease noise is still clean, the distribution of power spectral density has no change, the spectral information loss after pretreatment though vector filtering was smaller than second mean filtering.

结果表明，相比二次均值滤波法，向量滤波法在降噪的同时，相位图依然清晰，它的功率谱密度分布没有明显变化，预处理后频谱信息的丢失远小于二次均值滤波。

The adaption is done during operation and occurs by means of a displacement of the stored midpoint vector of the probability density distributions of hidden Markov models, in the direction of a known feature vector of sound expressions and in relationship to the hidden Markov models specially used.

适应是在运行中完成的，并且是通过隐含式－马而科夫－模型的概率密度分布的被存储的中心矢量的一个位移发生的，是在一个被识别的发音表达的特征矢量方向上并且是参照应用的隐含式－马而科夫－模型。

Results The density of vector in the Olympic venues and the whole city declined.The public health goal of the Olympic Games,which was "effective control for the quantity and species of vector in the area related to Olympic Games" was realized completely.

结果 降低了奥运场馆和全市病媒生物密度，完全实现了"有效控制城市奥运涉及区的病媒生物种类及数量"的奥运公共卫生保障目标。

To optimize the performance of the hybrid model,it applies k-means algorithm to perform vector clustering in the LSA vector space while the density function is used to initialize the centroid.

研究了潜在语义分析理论及其在连续语音识别中应用的相关技术，在此基础上利用WSJ0文本语料库上构建LSA模型，并将其与3-gram模型进行插值组合，构建了包含语义信息的统计语言模型；同时为了进一步优化混合模型的性能，提出了基于密度函数初始化质心的k-means聚类算法对LSA模型的向量空间进行聚类。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。