查询词典 DC

Sano model and deduced by the rate equations for excess electron and excess hole, can be used in DC analysis, AC analysis and transient analysis. The result of DC photoelectric characteristic simulation coincided with the experiment very well.

Sano模型为基础，结合过剩电子、空穴速率方程得到的，可用于直流分析、交流分析和瞬态分析，其直流光电特性模拟分析结果与已报道的实验结果符合得很好。

A dc-motor load (the other application of these converter) can be represented by a dc voltage in series with the motor winding resistance and inductance.

直流电动机负载则可以表示为一个直流电压与一个电感和电阻串联。

On the basis of the conventional design means of DC side filtering equipments in HVDC transmission system, multi-object programming optimizing method with two objects: investment and operation fare and the constrain condition of equivalent interfering current limit is presented to get a generally optimum scheme for DC side filtering equipments including smoothing reactor, filters and capacitor at neutral bus in this paper.

本文基于高压直流输电系统直流侧滤波装置传统的设计方法，提出了以投资费用和年运行费用为目标、等效干扰电流满足标准要求为约束条件的多目标规划设计方法，对高压直流输电系统直流滤波装置(包括平波电抗器、直流滤波器、中性点冲击电容器)进行综合优化设计。

Because a bulk smoothing capacitor is usually installed on the DC side of many AC to DC converters, the characteristics of harmonic loads will be influenced by this capacitor. Nowadays, shunt active power filters can't reduce harmonics effectively for this voltage type harmonic-producing load. Therefore, a series active power filter is designed to meet the requirements of voltage-sourced harmonic loads. Both source current and load voltage are detected in order to reach the compensation voltage for the SAPF.

由於许多交直流电源转换器均在直流端并联一直流电容以作为稳压之用，此大电容将造成负载谐波特性的改变；此类谐波源负载，如果使用现今常见的并联型主动式电力滤波器并不能很有效解决此类谐波问题；因此本文将采用串联型主动式电力滤波器，并配合同时量测电源电流及负载电压的混合式控制模式，即可有效解决此类谐波问题。

Methods 30 BALB/c mice were randomly divided into three groups, normal control group, 100, 200 mg/kg APS intraperitoneal injection groups. After one week, weight the mouse spleen, account the splenetic index. Collect the mouse bone marrow cell, induced and cultured with rmGM-CSF and rmIL-4. With inverted microscope to investigate the morphous of DC cell. The phenotypes of DC were detected by flow cytometry and the expression of the GM-CSF protein in serum was tested by ELISA.

分别设对照组及APS 100、200 mg/kg 剂量组，腹腔注射，体内诱导小鼠髓源性DC前体和未成熟DC，称量脾重，ELISA检测血清中GM-CSF表达量，倒置显微镜观察细胞生长状态，电镜检测细胞形态，流式细胞仪检测CD11c、MHC-Ⅱ类分子及协同刺激分子CD80、CD86表达水平。

The realization scheme of this project is also discussed in the paper, a data pick-up/control board using PCI bus protocol is designed, this board together with some softwares can finish many functions such as AD conversion of DC system generatrix and every DC spur track, sine wave generation which frequency is between 0-50Hz , and some control functions in fault analysis system.

本文还进行了故障检测装置实现方案的有关研究，设计了基于PC机的直流电网故障诊断系统，完成了基于计算机PCI总线的数据采集控制卡的设计，该卡配合计算机软件可以实现电网正负母线，各支路互感器输出等多路模拟量信号的采集，产生0-50Hz之间任意频率的低频信号源，并且能够完成故障检测中的各种控制功能。

The keystone of this device as follows : input three phase AC power supply of 380V±15%, become DC after primary full-bridge commutation wave filter, convert high frequency AC pulse of over 20KHZ using IGBT inverter module, become DC power supply for the usage of producing ozone after step-up of High Frequency Transformer and commutation of quickness rectifier tube and reactor.

高频高压臭氧发生装置的基本原理是：输入380V±15%三相交流电源，经初级全桥整流滤波成为直流，通过IGBT逆变部件，转换成20KHZ以上的高频交流脉冲，再经高频变压器升压，最后由快速整流管、电抗器整定为可供发生臭氧用的直流电源。

The topology of the step-up DC/DC converters and its basic principle is first analyzed in this thesis.

本文首先介绍了升压型DC/DC变换器的拓扑结构和基本工作原理。

A PFM controlled step-up DC/DC converter is analyzed in this thesis.

论文设计了一种升压型DC/DC变换器的控制芯片。

The basic principle and circuit topology of DC side series APF are analyzed; the corresponding control equations are derived; the criteria for the design and selection of principal parameters for main circuit, i.e., the filter inductor and energy storage capacitor, are given to provide theoretical basis for rational design of DC side series APF.

文中对直流侧串联型APF的电路拓扑和基本原理进行了分析，推导了相应的控制实现方程，给出了主电路主要参数的设计和选取标准，为系统的合理设计提供了理论依据。

That's what makes this mod unique.

这也正是这个MOD独特。

I now feel furious and want to do something.

现在我觉得非常气愤，想做点什么。