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theory
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    Study on Structural Theory and Algorithm of Power Sales Decision Support Systems Based on Data Mining
    基于数据挖掘的电力营销决策支持系统的结构原理及算法研究
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    A New Zero-detecting Theory and Its Application
    一种新的检零原理及其应用
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    Microcomputerized Faulty Line Discriminator Based on Theory of Maximizing Isin or △(Isin)
    基于最大Isinψ或△(Isinψ)原理的微机选线装置
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    The Integral linear Optimal Excitation Control Theory and Simulation
    积分型线性最优励磁控制原理及仿真实验
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    COMPOSITION THEORY AND CHARACTERISTIC ANALYSES OF EQUIVALENT BALANCE TRANSFORMER
    当量平衡变压器构成原理及特性分析
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    Travelling Wave Theory and Its Application to Protective Relaying
    行波与行波继电保护
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    Travelling Wave Theory and Its Application to Protective Relaying (contd)
    行波与行波继电保护
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    Generator Stator Earth-fault Protection Based on Travelling Wave Theory
    发电机定子接地行波保护
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    TWO PROBLEM ARE USED IN THE ENGINEERING DESIGN OF THE MODERN CONTROL THEORY
    用现代控制论的观点讨论工程设计方法中电流环出现的二个问题
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    Excitation control of synchronous machine using theory of variable structure systems
    发电机励磁变结构控制
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  theory
We use the theory of tilting modules for algebraic groups to propose a characteristic free approach to "Howe duality" in the exterior algebra.
      
This study was continued in the paper [FKRW] in the framework of vertex algebra theory.
      
As in the case of Mumford's geometric invariant theory (which concerns projective good quotients) the problem can be reduced to the case of an action of a torus.
      
We also show how to distinguish examples of open subsets with a good quotient coming from Mumford's theory and give examples of open subsets with non-quasi-projective quotients.
      
The theory is applied to the case of cubic hypersurfaces, which is the one most relevant to special geometry, obtaining the solution of the two classification problems and the description of the corresponding homogeneous special K?hler manifolds.
      
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The cycloidal portion of the stator winding of the T.Q.C. series turbogenerators is parallel to the end plates. When studying the electromagnetic field and eddy- current losses, only the effects of this portion need to be considered, since the effects of the portion perpendicular to the end plate is almost cancelled by that of the end winding of the rotor. In this paper, the distribution of the electromagnetic field on the surface and the eddy-current losses in the end plates are obtained from electromagnetic...

The cycloidal portion of the stator winding of the T.Q.C. series turbogenerators is parallel to the end plates. When studying the electromagnetic field and eddy- current losses, only the effects of this portion need to be considered, since the effects of the portion perpendicular to the end plate is almost cancelled by that of the end winding of the rotor. In this paper, the distribution of the electromagnetic field on the surface and the eddy-current losses in the end plates are obtained from electromagnetic theory and the results agree with that of experiments.

TQC系列汽轮发电机定子端部绕组的渐开线部分与压板平行。在短路时,定子端部 绕组与压板垂直的部分与转子端部绕组的效应差不多互相抵消,可以只考虑与压板平行 的定子端部绕组的作用。本文从电磁场基本理论出发得出了压板表面电磁场的分布情况 及压板的涡流损耗,与实验结果基本符合。

This paper deals with the basic principles of the vibration and shock isolation in accordance with the basic theory. Three aspects are considered here: 1. The isolation theory of such periodic vibrations as: 1) Single-degree-of-freedom system; 2) Uncoupled two-degree-of-freedom system; 3) Coupled two-degree-of-freedom system; 4) Multi-degree-of-freedom system; 5) High frequency excitation system; 6) Non-rigid structure system. 2. Theory of random vibration isolation. 3. Theory of shock...

This paper deals with the basic principles of the vibration and shock isolation in accordance with the basic theory. Three aspects are considered here: 1. The isolation theory of such periodic vibrations as: 1) Single-degree-of-freedom system; 2) Uncoupled two-degree-of-freedom system; 3) Coupled two-degree-of-freedom system; 4) Multi-degree-of-freedom system; 5) High frequency excitation system; 6) Non-rigid structure system. 2. Theory of random vibration isolation. 3. Theory of shock isolation. The theory involved here has been partly proved by the vibration test of multi-degree-of-freedom system. In the last part of the paper, are discussed the principles for selection and design of the shock and vibration isolators.

本文从基本理论出发分析了电子设备振动与冲击隔离的基本原理:1.周期性振动:(1)单自由度系统,(2)非耦合二自由度系统,(3)耦合二自由度系统,(4)多自由度系统,(5)高频激励系统,(6)挠性结构系统等的振动隔离原理;2.随机振动的隔离原理;3.冲击隔离原理。通过多自由度系统的振动试验基本验证了上面有关的理论。最后提出振动与冲击隔离器的选用与设计原则。

In this paper, an exact method to solve the forced oscillations and self-excited oscil-lations of relay servomechanisms with backlash is suggested based on the theory ofTsypkin. The effects of backlash on the periodic behavour of forced oscillations and self-excited oscillations are also discussed. In the system discussed, the relay has ideal charac-teristics with or without hysteresis loop; the linear part has transfer function of the formk/p(T_1p+1). The parametric regions for the existence of forced...

In this paper, an exact method to solve the forced oscillations and self-excited oscil-lations of relay servomechanisms with backlash is suggested based on the theory ofTsypkin. The effects of backlash on the periodic behavour of forced oscillations and self-excited oscillations are also discussed. In the system discussed, the relay has ideal charac-teristics with or without hysteresis loop; the linear part has transfer function of the formk/p(T_1p+1). The parametric regions for the existence of forced and self-excited oscil-lations are obtained.

在崔普金理论的基础上,提出一种求解具有间隙的继电系统中强制振荡与自振荡参数的准确方法。同时亦讨论了间隙对周期现象的影响。所讨论的系统中,继电器具有理想继电特性(有回环及无回环);线性部分传递函数形如K/p(T_1p+1)。得出了系统存在强制振荡及自振荡的参量域。

 
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