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matrix
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  矩阵
    R&D on Matrix Converter and Its Application in Electric Driving System
    三相交—交矩阵式变换器及其在电气传动中应用的研究
短句来源
    A Power Plant Thermal System Analysis Method Based on Energy-Efficiency Distribution Matrix Equation
    基于能效分布矩阵方程的火电厂热力系统分析方法
短句来源
    Space Vector Modulation and Application Study on a Matrix Converter
    矩阵式变换器的空间矢量调制及其应用研究
短句来源
    Low-dimensional Molecular Magnetic Materials Studied by Density Matrix Renormalization Group
    低维分子磁性材料的密度矩阵重整化群研究
短句来源
    Research on Controlling Strategy of High Performance Matrix Converter Fed Induction Motor Adjustable Speed System
    矩阵变换器—异步电动机高性能调速系统控制策略研究
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  基体
    EFFECTS OF BRONZE MATRIX DISPOSITION ON MF Nb_3S_n CONDUCTOR BY BRONZE PROCESS
    青铜基体配置对多芯Nb_3Sn导体的影响
短句来源
    Study of Interfaces between Fibre and Matrix in Carbon Fibre Reinforced PEK-C Composites
    碳纤维增强PEK-C复合材料中纤维和基体间的界面研究
短句来源
    A PZT/PVDF piezoelectric composite was made through incorporation of the PZT power into PVDF polymer matrix by means of solution blending.
    采用溶液共混法将PZT粒子均匀分散于PVDF基体中,制备了PZT/PVDF压电复合材料。
短句来源
    Silicon-oil-based magnetic liquid was prepared using globular Fe3O4 particles with mean diameter of about 10.8nm as matrix material, dispersing it in 2-methyl silicon oil after surface modification using variant anionic surfactant, and proper surfactant was determined according to its dispersion permeation.
    以平均粒径约10.8nm、球形Fe3O4微粒为基体材料,用不同的阴离子表面活性剂改性后分散于2-甲基硅油中,根据分散体系透光率值的大小确定适宜的表面活性剂。
短句来源
    The distribution of oxide particles is inhomogeneous and seriously conglomerated in Ag-Y2O3 and Ag-CeO2 sintered bulk,but they are dispersed and uniform in Ag matrix after severe plastic deformation.
    Ag-Y2O3和Ag-CeO2材料烧结坯中氧化物颗粒分布不均匀且团聚严重,但材料经过大变形加工后,氧化物颗粒细小,均匀地弥散分布在银基体上;
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  “matrix”译为未确定词的双语例句
    Application of the Z-Bus Matrix Eqaations of Faulted Power System in Setting Calculations of Relay Protections
    电力系统故障的节点阻抗方程在继电保护整定计算中的应用
短句来源
    Preparation of LiAlO_2 used as Matrix Materials in Molten Carbonate Fuel Cells
    熔融碳酸盐燃料电池隔膜用LiAlO_2制备
短句来源
    Study of Wetting Property of Glass Fiber and Dielectric Behavior of Glass Fiber/Epoxy Matrix Composites
    玻璃纤维浸润性能和玻璃纤维/环氧基复合材料介电性能的研究
短句来源
    A series of partial dynamic model expression system in each partial region dynamic behavior is established,and then the degree of membership function is used to connect these partial models to form a structure overall situation dynamic model. Finally the solution linear matrix inequality(LMI) method and MATLAB/LMI toolbox are used to obtain the controller of the generator excitation system.
    建立一系列局部动态模型表示系统在每个局部区域的动态行为,然后利用隶属度函数把这些局部模型连接起来构造一个全局动态模型,最后采用解线性矩阵不等式的方法,利用MATLAB/LMI工具箱得出了发电机励磁系统的控制器。
短句来源
    By using Lyapunov stable theory, the gain of the observer can be obtained by solving a line matrix inequality (LMI) in Matlab LMI toolbox.
    应用Lyapunov稳定性理论,观测器的增益借助于Matlab中的LMI工具箱求解线性矩阵不等式得到。
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  matrix
Finally the cubic surfaces of each component ofQ are studied in details by determining their stabilizers, their rational representations and whether they can be expressed as the determinant of a 3×3 matrix of linear forms.
      
In this paper we present an explicit formula for the twistors in the form of an infinite product of the universalR matrix ofUq(g).
      
Semi-invariants of quivers can be constructed by taking admissible partial polarizations of the determinant of matrices containing sums of matrix components of the representation and the identity matrix as blocks.
      
These are analogous to "fusion rules" in tensor product decomposition and their derivation obtains from an analysis of theR-matrix.
      
The form of these generic polynomials is that of a Bethe eigenfunction and they imitate, on a more elementary level, the R-matrix construction of quantum immanants.
      
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ID recent years the wide application of node impedance matrix method has proved itself as an effective tool in solving power system short circuit calculation problems (including zero sequence mutual induction effect) by electronic digital computers. This paper describes the fundamental concept of node impedance matrix and different methods to formate them.Special attention being paid to the topological method of matrix transformation. It further extends the application of node impedance method...

ID recent years the wide application of node impedance matrix method has proved itself as an effective tool in solving power system short circuit calculation problems (including zero sequence mutual induction effect) by electronic digital computers. This paper describes the fundamental concept of node impedance matrix and different methods to formate them.Special attention being paid to the topological method of matrix transformation. It further extends the application of node impedance method to solve simultaneous ground fault problems, single phase reclosing problems, transient stability calculations and loss coefficient calculations. All programs hare been verified on electronic digital computers.

近年来,在数字计算机上应用结点阻抗矩阵法计算电力系统短路电流(包括零序互感)显示出快速精确的效果。本文就结点阻抗矩阵的概念以及形成方法进行一次探讨。文中着重分析了一种利用网络几何原理进行的矩阵变换法。此外,还介绍了将结点阻抗矩阵推广应用于电力系统其他计算问题(异相两点接地、动态稳定、单相重合阐以及线损系数等)中的一些经验。文中所介绍的方法均在数字机上经过了检验。

The Paper is a summary of the result of studying and fabricating the Pneumatic 100—Point sampler. The device can select through automatic cycling 100—Point Pressure signal of 0.2—1.0kg/em~2 or any point by hand. The error of the deviceto the selected signal is smaller than 0.5% and the rangl of the adjustable sampling Peried is from 2 to 20 sec. The device is made on the basis of diagphragm, logic elements and the selected signal, Power, time signal, logic operation and on-off switches are all pneumatic. The...

The Paper is a summary of the result of studying and fabricating the Pneumatic 100—Point sampler. The device can select through automatic cycling 100—Point Pressure signal of 0.2—1.0kg/em~2 or any point by hand. The error of the deviceto the selected signal is smaller than 0.5% and the rangl of the adjustable sampling Peried is from 2 to 20 sec. The device is made on the basis of diagphragm, logic elements and the selected signal, Power, time signal, logic operation and on-off switches are all pneumatic. The pneumatic matrix logic switches are made of organic glass with interior tube eonstuetion, which gives the advantages of low cost, light weight, small volume erc.

本文是气动100点采样装置研究試制結果的总結。该装置能自动巡迴采入100点或手动选择任意点0.2—1.0公斤/厘米~2的气压信号。本装置对被采入信号引起的誤差小于0.5%,采样周期可調范围为2—20秒。它在气动膜式逻辑元件基础上組成,特点是被采入信号、动力、时間信号、逻辑运算、开关的启閉都是气动的。其中气动矩陣邏輯开关用有机玻璃制成,采用了內部管道的工艺,因而具有成本低、重量輕、体积小等优点。

An exact mathematical model for the calculation of electrical quantities of single-tower double circuit transmission system is proposed in this paper. The model can be used to investigate the rational arrangement of the six phase-conductors of the double circuit; the reasonable way of transposition of conductors, the estimation of the secondary arc current and its compensation methods ; the protective relaying scheme suitable for multi-phase reclosing, etc. This mathematical model is more flexible and convenient...

An exact mathematical model for the calculation of electrical quantities of single-tower double circuit transmission system is proposed in this paper. The model can be used to investigate the rational arrangement of the six phase-conductors of the double circuit; the reasonable way of transposition of conductors, the estimation of the secondary arc current and its compensation methods ; the protective relaying scheme suitable for multi-phase reclosing, etc. This mathematical model is more flexible and convenient as compared with the cascade type structure of A, B, C, D. For the formation of the nodal impedance matrix, an algorithm using partial 6 x 6 matrix, representing the six phases of the double circuit arrangement respectively, is proposed. Owing to the fact that the mutuals between phases are contained implicitly inside the 6 x 6 matrix, so that this algorithm is much more simpler than the conventional algorithm. Thus, the program of calculation is simplified and computing time is saved.

本文提出了计算并架双回路输电系统电量的精确数学模型。可以用它来研究:双回路六线相别的合理排列;双回路合理的换位方式;平行线路的潜供电流及其补偿方法;双回路采用多相重合闸时的选相元件和继电保护方式等等问题。这个数学模型较之用ABCD传递阵方法构成的数学模型使用起来灵活方便。在形成节点阻抗矩阵方面,提出了六线成组追加的方法,由于在这种方法中,互感采取了隐含的形式,所以比常用的支路追加方法要简单得多,从而简化了计算程序,节约了机时。

 
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