查询词典 variable density system

In this section, we formulate the problem of designing 2-D variable digital filters with arbitrary magnitude responses based on the newly proposed outer product expansion of the given 2-D variable magnitude specifications.

在本节中，根据给定2－D可变幅度技术条件提出的外围设备，我们阐述了任意幅度反应2－D可变数字滤波器的设计。

A variable must be defined in or before the outermost scope in which the variable will be used.

必须在使用该变量的最外层作用域里面或之前定义变量。

From the statistical point of view, if the target phenotype is considered as independent variable and allelic variation in many genome loci as explanatory variables, we need to pick up the variables with significant contribution to the phenotype from tens of thousands of variables. This is so-called variable selection from oversaturated models. There has been many methods to deal with this issue.

从统计学的角度来看，如果把目标性状表现型看作依变量，基因组上很多座位的序列变异看作自变量，则需要在成千上万个自变数中筛选出一些对表型有显著效应的自变数，因此，该问题可以看作是一个超饱和模型变数选择的问题。

Then the stability solution of the variable cross-section compression bar, that is discribed by a partial differential equation with variable coefficient is transformed into solving a set of algebraic equations established in the subspace.

首先以均匀梁的低阶纵向振动模態函数构成求解子空间，然后在此子空间中把变截面压桿稳定由变系数偏微分方程描述的求解问题转化为非线性代数方程组的求解，从而简化了计算过程。

The value of information depends on its structure which is characterized by the joint probability matrix of information variable and state variable, we have defined some partial ordering over the matrices, our main results provide some sufficient conditions, which described by the partial ordering,for the value of information to increase.

信息结构由状态变量与信息变量联合概率矩阵来描述。我们定义了矩阵的一些偏序，通过这些偏序给出了信息价值的比较关系。

Firstly, the research tests the stationary of each variable by adopting the Unit Root Test and all variables shows I(1) sequence. Secondly, it tests the stability of each variable by adopting Perron (1989) structure transformation Unit Root Test. The test result is same as the ADF test, which does not consider the structure transformation.

首先以单根检定法来检定各项变数是否为定态，结果显示变数皆为I(1)序列，接著以Perron(1989)结构转变的单根检定，检测各变数的平稳性，检定结果与不考虑结构转变的ADF检定结果相同。

Much attention is paid to the mesh principle of variable ratio rack and sector, which includes the principle of variable ratio, the selection of gear type, the setting up of rolling pitch line, and the determination of tooth profile.

重点说明转向器中变速比扇形齿轮和齿条的啮合原理，包括变速原理，变速齿轮的选择，滚动节线的建立，齿形的确定等问题。

The results showed that food ingestion and frequency of the polecat in constant food patches were higher than that in the variable food patches and time of the polecat was the same between two patches during the training period. Only the frequency of the polecat in constant food patches was higher than that in variable food patches when the polecat was starved for 1 day. Its foraging pattern between the two patches was the same as that during the training period when the polecat was starved for 2 days. Meanwhile, the food ingest ion amount in the two patches was not affected by starvation, but the time and frequency of the polecat using the two patches significantly decreased when starvation increased.

研究结果表明，训练期实验中，艾虎对固定食物量斑块中的取食量和利用频次明显高于变化食物量斑块，而对两个斑块的利用时间基本相同；艾虎饥饿一天后对固定食物量斑块中的利用频次明显高于变化食物叠斑块，而对两个斑块的利用时间和取食量基本相同；艾虎饥饿两天后对两个斑块利用程度与训练期的结果相同：同时，艾虎在两个斑块中的取食量均与饥饿程度无关，而对两个斑块的利用时间和利用频次均随饥饿程度明显降低。

In order to solve the derivation of power exponent function,this paper has studied the derivation regulations on power function from the perspective of the differentiation of multi-variable function and in accordance with the derivation laws on multi-variable complex function.

为解决幂指函数的求导问题，从多元函数微分法的角度出发，根据多元复合函数的求导法则，探索幂指函数求导的规律，并揭示了幂指函数与幂函数及指数函数导数间的关系，给出了幂指函数求导的另一种方法。

By analyzing the tested program, this paper presents the balance force method of test data generation, according to an input of the program, decide to remove variable scope and variable in the predicate processed with function minimum, an example is given in this paper.

文章通过对被测试程序的分析，提出了生成测试数据的平衡力法，对任意的输入变量，判断变量移动范围及进行谓词中变量的函数极小化，得到测试数据，并给出了具体实现方法。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。