查询词典 decomposition

The convex decomposition of arbitrary planar polygon.

任意平面多边形的凸分解。

In this paper, taking the downward continuation of potential field as an inverse problem of upward continuation, we obtain a convolution type linear integral equation for downward continuation. Making use of the orthogonal symmetry characteristic of Fourier transform matrix, and combining the principles of singular value decomposition of matrix and generalized inverse, we proposed a stable generalized inverse method for downward continuation of potential field, called wavenumber domain generalized inverse algorithm, which doesn't need the computation for inverse matrix. It resolves the instability of potential field downward continuation of large depth.

本文通过把位场向下延拓视为向上延拓的反问题，得到向下延拓的褶积型线性积分方程，再利用Fourier变换矩阵的正交对称特性，并结合矩阵的奇异值分解和广义逆原理，提出了一种稳定的不需要进行求逆运算的位场向下延拓广义逆方法——波数域广义逆算法，解决了位场大深度向下延拓的不稳定性问题。

On the basis of the conclusion above, the nonlinear weak controllable vectors can be obtained, which compose the second class of weak controllable matrix, by means of matrix transfermations of the first class of weak controllable matrix. Furthmore the second criterion of weak controllability, accessibility and strong accessibility, which is more standard, more succinct and more practical, is obtained. On the basis of the first criterion and the second criterion, several important problems about nonlinear controllability are discussed, which include 1 local controllability; 2 three classes of local controllable decomposition, separately by means of local coordinate changes in the neighborhood of a nonsingular point, a point on a singular surface or a designated point x〓 with a designated input u〓; 3 the character of controllability of the ith state variable x〓 in different controllable areas and their boundaries.

在第一判别定理和第二判别定理的基础上，我们分析了非线性系统受控性质中的几个重要问题，所得到的结论包括i得到了非线性系统在可平衡点附近的能控性判别定理；ii分别给出了非线性系统在非奇异点、s阶奇面以及在状态空间内给定的一点x〓和输入u〓上的三种状态分解形式以及相应的求解方法；利用系统的Ⅰ型弱能控矩阵与Ⅱ型弱能控矩阵秩相等的条件，得到了只用系统的前n个弱能控向量来判断系统的弱能控性的判别定理；iii通过引入系统状态分量的三类受控区域边界的定义及相应的求解方法，初步探讨了非线性系统各个状态分量在不同的受控区域及其边界上的受控性质。

Key technical/technological parameters include specific core surface load, formulation and particle size of charge, decomposition volume etc were optimized through a large number of experiments.

还通过大量实验优化了多炉芯加热技术的单位炉芯表面负荷、炉料配方、原料粒度与分解量大小等关键工艺参数，并研究了在不同技术／工艺参数条件下的产品的特点、化学纯度和结晶状况。

Soil corer was used to investigate the distribution of fine root and a traditional method of nylon litter bag to measure the decomposition in pure Cunninghamia lanceolata and Michelia macclurei var Sublanea ,and the mixed plantations.

用土钻法研究了杉木、火力楠纯林和混交林的细根分布，用分解袋法研究了杉木和火力楠细根的分解，计算了3个林分中细根分解的N，P，K，Ca，Mg的归还量。

We tested decomposition of cornstalk using two- phase biotransformation in the present study.

采用二相生物转化法研究了玉米秸秆的降解，并对生物转化过程中秸秆的成分变化进行了跟踪测试分析。

Study on the role of earthworm indecomposition of agricultural wastes cow manure and cornstalk, role of available use ofagricultural wastes in decomposition and transformation of earthworm, is very important intheory and realization.

研究蚯蚓在农业废弃物牛粪和玉米秸秆分解中的作用，对于这两种农业废弃物的有效利用和蚯蚓在物质分解转化中的作用具有重要的理论和现实意义。

In this dissertation, the applied research in decomposition VOCs by pulse corona discharge plasma is discussed primarily.

在本文中主要讨论了脉冲电晕放电低温等离子体处理挥发性有机化合物VOCs的应用研究。

Multi-functional digital watermarking technology based on RS error correction code and singular value decomposition .

基于RS 纠错码和奇异值分解的多功能数字水印技术。

Then the shapes and amplitudes of geometrical imperfection can be determined through the decomposition of the correlation matrix.

这种求解拱结构随机几何缺陷的方法同样适用于其它结构中随机分布几何缺陷的分布方式及大小的求解。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！