matrix n. (pl. matrices 或matrixes) 1.【解剖学】子宫;母体;发源地,策源地,摇篮;【生物学】衬质细胞;间质;基质;母质。 2. 【矿物】母岩;脉石;【冶金】基体;【地质学;地理学】脉石;填质;杂矿石。 3. 【印刷】字模;型版,纸型;铸型,阴模。 4.【阵】(矩)阵,方阵;母式;【物理学】间架;【无线电】矩阵变换电路。 5.【染】原色〔红黄蓝白黑五种〕。 the matrix of a nail 【解剖学】指甲床。
On metapositive difinite of product of complex matrices 关于复矩阵乘积的正定性
A iteration method to seek the complex matrix inversion 一种求复数矩阵逆的迭代方法
Properties of positive definite complex matrix 关于正定复矩阵的一些性质
The research on positive definite complex matrix 半正定复矩阵的研究
A highly complex matrix of mutation pattern from worldwide data is now collected in a unique and comprehensive database called Seqhepb是现时世界上唯一及最全面的资料库,收纳了世界性乙肝病毒变异的资料。
We can simulate the infinit and complex matrix by coupling the finit and simple base mechanism . this thesis study three dimension kinematic simulation of mechanism 因此,机械传动系统运动仿真问题就可以转化为研究如何通过有限的、简单的子体的耦合来实现无限的、复杂的母体的运动仿真。
Using doped method in inorganic luminescence materials , lanthanide chelates have been put into complex matrix . rare earth ion concentration is lowered and new kind of rare earth compounds are gotten 类似无机荧光材料中掺杂办法,将稀土荧光络合物掺入络合物基质中,降低稀土浓度,得到新型稀土络合物发光材料。
As the essential electrical calculation means , load flow calculation provides important basis for power systems operation and studies , and is indispensable to advanced power systems application software . in this thesis , the development of methods for load flow solution of distribution networks at present have been fully analyzed and evaluated in the aspect of convergence . the algorithm for distribution power systems base on the complex matrix was proposed in this paper , the proposed methods is very efficient and required less computer memory storage observably 潮流计算是电力系统中应用最广泛、最基本,也是非常重要的一种电气计算。它给电力系统的研究人员和实际运行人员提供了重要参考依据,也是许多电力系统高级应用软件中不可缺少的一部分。本文针对配电网潮流计算的现状进行了全面分析,深入讨论了目前各方法的特点,并从收敛性能及各方面指标进行了比较分析,提出了基于复数矩阵的配电网潮流的原理、数学模型和实现方法,并通过编程于以实现。
Experimental results show that this method is highly effective and efficient , and moreover it has no requirements on the differentiability and continuity of the objective function , and consequently does not need to perform complex matrix calculations , so this method is suitable for applications in identification of nonlinear hydrodynamics of complex system 结果表明,智能算法简单有效,对目标函数没有可微性和连续性要求,避免了复杂的梯度矩阵计算,适合在复杂的非线性水动力系统辨识中应用。