阵

Firstly, we give a necessary and sufficient condition for a nonnegative square matrix to be decomposed into a product of a finite number of irreducible nonnegative matrices in chapter 1. We prove it by using Frobenius normal form in combinational matrix theory and associated directed graph in graph theory. In addition, we can limit the number of factors to three, and construct every factor.

首先，在第一章中，我们给出了一个非负矩阵可以分解成有限多个不可约非负阵的乘积的充要条件，证明过程利用了组合矩阵论中的Frobenius标准型和图论中的伴随有向图，并且将乘积中的因子个数限制到三个，具体地构造出了分解式中的每个不可约非负阵。

The processor (50) generates partial matrix H1 to satisfy the conditions that, when any two rows contained in partial matrix H1 are selected, the two rows have periods that are relatively prime, or when the periods are identical, the two rows have different phases.

处理器(50)产生子阵H1以满足以下条件：当选择子阵H1中所包含的任何两行时，这两行具有互质的周期，或者当周期相同时，这两行具有不同的相位。

Since a partially ordered set has longitudinal and lateral structures, the characterization of poset matroids by rank function is much more complicated than that of the classical matoid.

因为一个偏序集有横向与纵向的结构，因此我们用秩函数来刻画偏序集拟阵要比刻画经典拟阵要复杂得多，但还是有章可寻。

Comparison between the numerical results in earth orbit and that in lunar orbit shows the characteristics of the periodic distribution for thermal parameters of the solar array in lunar orbit, which will provide powerful references for the design of the solar array and the whole lunar satellite.

计算结果与地球卫星的相应数据进行比较，明确了月球轨道上电池阵所得外热流以及温度的周期分布特点，为月球卫星上太阳电池阵以及整个卫星的设计提供了有利的数据参考。

The method for constructing LDPCC code includes encoder and decoder. Operational steps include as following: determining parameters of checkout matrix HQT of group code of permutation unit matrix LDPC; constructing checkout matrix HQT of group code of permutation unit matrix LDPC; constructing checkout polynomial matrix HT of LDPCC code; exporting generated matrix G of LDPCC code.

一种LDPCC码的构造方法，包括编、译码器，运行的步骤包括：初始化的步骤；确定一个置换单位矩阵LDPC分组码的校验阵HQT的参数的步骤；构造置换单位矩阵LDPC码校验阵HQT的步骤；构造LDPCC码的校验多项式矩阵HT的步骤；导出LDPCC码的生成矩阵G的步骤。

The radiation performance at lower frequencies can be improved using the stacked TEM-horn configuration and decreased using rain gutter and square plane TEM-horn configuration.

当TEM喇叭天线阵列单元沿E面叠状排列，阵元间互耦可以改善阵列的低频辐射；沿H面排列的槽状线阵或平面方阵不利于阵列的低频辐射的改善。

Much was owed to the valor of three Marines: Private First Class Robert Benson and Private Hector A. Cafferatta of the 2d Platoon under Second Lieutenant Elmo G. Peterson on the left, and Private First Class Gerald J. Smith of the 1st Platoon under First Lieutenant John M. Dunne on the right.

这里很大程度上要归功于三名陆战队员的英勇表现：左翼阵地上2排艾蒙·G·皮特森少尉手下的一等兵罗伯特·本森和列兵赫科特·A·卡福莱塔，以及右翼阵地上1排约翰·M·杜勒中尉手下的一等兵格洛德·J·史密斯。

Cross-talk between the hemispheres may be important for remembering specific events, called episodic memory, so psychologists Stephen Christman and Ruth Propper of the University of Toledo, Ohio, reasoned that lefties and righties might differ in episodic memory skills.

大脑两个半球间的相互交流可能有利于记住特别事件的阵发式记忆，因此美国俄亥俄州托莱多大学的两位心理学家Stephen Christman和Ruth Propper推测，左撇子和右撇子在阵发式记忆上应该有所不同。

Basing on the existing theory of crisp matroids and fuzzy matroids, the paper studies mainly fuzzy rank function and fuzzy submodularity function, The main contributions of the pap...

本文在现有拟阵和模糊拟阵理论的基础上主要研究了模糊秩函数以及模糊子模函数等内容，现分述如下：(1)从传统的子模函数出发，定义了模糊子模函数。

The result of numeric computation demonstrates that the approximate directional algorithm is robust, the result of Monte Carlo simulation shows that the performance of the optimum four-element array structure is better than the common one or the regular tetrahedron one.

数值计算结果表明，提出的近似定向算法是可靠的；计算机蒙特卡罗仿真结果表明，导出的最佳四元阵列性能优于普通的四元阵和正四面体阵。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。