因数

短路电流计算中引入电压因数C的研究

Research on Leading-in Voltage Factor C in Short-circuit Current Calculation

基于BOOST电路功率因数预调节器的设计

Design of Power Factor Pre Regulator Based on BOOST Circuit

他不知道因数怎样分解。

He doesn 't know how to resolute into factors .

特别对单相Boost型功率因数校正电路的集成进行了概述。

The integration of single-phase Boost PFC converters is particularly overviewed .

从品质因数Q到辐射权重因数WR

From quality factor Q to radiation weighting factor w_r

光功率的波形是由反馈水平因子C和线宽展宽因数α共同决定的。

The waveform of the optical power is determined by the feedback factor C and the linewidth enhancement factor α .

PWM整流器高功率因数的实现

The Realization of the PWM Rectifier with High Power Factor

间接电流控制可调功率因数电流型PWM变流器

Indirect Current Control Adjustable Power Factor Current Source PWM Converter

单相Boost功率因数校正电路输入阻抗特性研究

Input Impedance Study of Single-phase Boost PFC Converters

单位功率因数PWM整流器双闭环PI调节器设计

Design of Double Closed-loop PI Regulator for Unit Power Factor PWM Rectifier

然而，他的结果从来考虑过量子修正因数&Planck函数p（f）。

But , the result does not give the quantum correction factor , i. e the planck functionp ( f ) .

有源功率因数校正（ActivePowerFactorCorrection，APFC）技术的优点是总谐波含量小，功率因数高。

Active power factor correction ( APFC ) technology can achieve high power factor and low total harmonic distortion ( THD ) .

对平均电流型功率因数校正电路原理进行分析，并就以BOOST型拓补构成该型电路实现的几个关键技术做出说明。

Analysis the average current model PFC , and talk about some problem of electric circuits realizes of BOOST model .

利用S，P，Q和N构成功率四边形，由S，P和Q计算非正弦交流电路的基波功率因数cos（？）

If S , P and Q are known , using the power quadrangle can compute the fundamental harmonic power factor cos (?)

功率因数校正（PFC）技术是目前电力电子研究的热点之一。

PFC is the hot point today in the electric electronic research .

PWM整流技术具有输入电压恒定、能实现单位功率因数运行的特点。

The three-phase of PWM voltage source rectifier owns such features as constant output voltage and running under unit power factor .

为LPAR配置的目标内存扩展因数

Target memory expansion factor configured for the LPAR

二阶RLC滤波电路品质因数推导中的巧合

Derived Coincidence about Quality Factor of Second-Order RLC Filter Circuit

恒定功率因数节能方法在VVVF变频调速器中的应用

Energy-saving Method of Constant Power Factor for a VVVF Inverter

带有功率因数校正的电荷控制型Flyback变换器的分析与设计

Analysis and Design of Flyback PFC with Charge Control

为了深入研究基因组序列的长程相关性质，将一些估计序列长程相关因数的参数化方法引入脱氧核糖核酸（DNA）序列自相似结构的研究之中。

In order to explore the long range correlation properties of DNA sequences in a further step , some parametric methods are introduced to characterize the self similarity of DNA sequences .

关于Fermat数的最大素因数的下界

On the lower bound of the greatest prime factors of Fermat numbers

文中分析了基于IVC控制的整流器电路工作原理，理论表明该电路具有电路结构简单、控制性能好、功率因数为1的优点。

The features are simple implementation , excellent control performance and unity power factor .

三相PWM整流器可以做到输入电流正弦、单位功率因数、直流电压输出稳定，具有良好的动态性能并可实现能量的双向流动。

Three-phase PWM rectifiers have many virtues such as sinusoidal input currents , unity power factor , steady output voltage , good dynamics and bin-directional energy Flow .

单位功率因数控制策略（UPF）；

The Unity Power Factor control strategy ( UPF );

重点分析了平均电流控制的CCM电路工作原理，对其功率因数校正过程作了详细的分析。

The operating principle of CCM circuit controlled by the average current and the correction procedure are analyzed in detail .

介绍了测定MC尼龙基复合材料－岩芯岩石摩擦副之间摩擦因数的试验方法和结果。

Abstract A test procedure of measuring the friction coefficient between modified MC Nylon base composite material and rock core and the test results are introduced .

点缺陷和线缺陷SRR的引入导致材料主谐振峰的强度下降、谐振频率发生移动，品质因数Q显著下降。

The main resonance frequency has a shift and the resonant peak value decreases when the defect SRRs are introduced into the samples .

提出一种具有零电流关断（ZCS）的反激式单级功率因数校正（PFC）变换器。

A flyback converter with zero current switching ( ZCS ) resonant and power factor correct ( PFC ) is proposed .

PTFE纤维具有优良的耐腐蚀性，低摩擦因数，不燃，能耐强酸、强碱、强氧化剂等强腐蚀性试剂或溶剂，耐高、低温性能优良。

PTFE fiber has good corrosion resistance , low friction factor , nonflame , strong acid and strong alkali resistance , high temperature and low temperature resistance .