详细情况

In this paper, the basic principle and the power factor of conventional SERDS are discussed. Aiming at its shortage of low power factor, boost chopper type SERDS is adopted. The equivalent circuit of the new scheme is built up, and then vector diagram is used to analyze the power factor of the system, also the harmonic distortion of the system is discussed. The experiment device is established base on a 380F/7.5 kW induction motor and a passive soft switching scheme is applied in order to improve the working condition of IGBT. At last, the experimental results are shown.

本文在分析传统串级调速原理的基础上，对系统的功率因数进行分析；针对传统串级调速系统功率因数低的缺点，采用升压斩波式串级调速系统加以改进；建立了升压斩波式串级调速系统的等效电路并采用向量图法对该系统的功率因数进行详细分析；分析了系统的谐波情况；构建了以7.5kW／380V电机为调速对象的升压斩波式串级调速系统实验装置，给出相应的实验结果；针对斩波器中IGBT处于硬开关状态的缺点，应用无源无损软开关技术予以改善，包括对软开关电路工作原理的分析、参数的设计并给出相应的实验结果。

We review the virulence factors and the molecular biological research progress.

本文在简要介绍致病因子的基础上，详细综述了分子生物学研究的进展情况。

Taking normal circulation of heating furnace walking beam for example, the structure and operating principle of three main current change valves are raised with the emphasis on the pressure oil change under each action.

以加热炉步进梁正循环为例，阐述了三个主要电液换向阀的结构及动作原理；并详细分析其每一动作中控制油路压力油的变化情况；说明了将控制油路由"外控"改为"内控"后系统仍然能正常工

In this paper, the application of tailor welded blanks in the automobile industry was discussed in detail.

本文详细阐述了激光拼焊技术在轿车上应用的情况，并就国内激光拼焊技术的发展和研究作了介绍。

In this paper, the synthesis ways and applications of 4,5-dimethyl-l,3-dioxolen -2-one were introduced. An appropriate way synthesizing DMDO from acetoin via acylation, cyclization and dehydrochlorination was selected. The influences of various process conditions on the reaction were studied in detail, and the optimum process conditions were obtained by single factor experiments.

本文介绍了医药中间体4，5-二甲基-1，3-二氧杂环戊烯-2-酮的应用情况和合成路线，选择了适于工业化生产的工艺路线，即采用羟基丁酮为原料，经酰化、环合和脱氯化氢等步骤合成DMDO，并采用单因素试验法详细研究了各项工艺条件对反应结果的影响规律，确定了优化工艺条件。

The structure reveals the catalytic intermediate of DAPDC, in which L-lysine is covalently bonded to PLP to form an external aldimine. This conformation provided the best insight to date on the substrate binding and catalytic mechanism of DAPDC. It also supplied valuable clues for designing specific DAPDC inhibitors.

通过分析我们发现这是DAPDC酶家族的第一个反应中间态结构，即反应产物L-赖氨酸与辅酶PLP共价结合形成了外源醛亚胺的构象，这为了解DADPC的底物结合情况及催化机理提供了迄今为止最详细深入的结构信息，也为针对DAPDC设计特异性抑制剂提供了宝贵的线索。

In this paper, quantitative analysis on exchange between inverter unit of DVR and grid is made when voltage temporarily drops. Then it studys detailedly the relationship of output voltage and power amang inverter unit of DVR ,grid and load.Finally Matlab simulations of all the compensation method are made.

本文定量分析计算电网电压暂降时DVR 逆变单元与电网的功率交换情况，详细研究逆变单元在各种补偿策略下的输出电压和有功功率与故障前后电网电压、负载电压和参考相量的具体关系，最后通过Matlab 仿真研究各补偿方法。

Then it studys detailedly the relationship of output voltage and power amang inverter unit of DVR ,grid and load.Finally Matlab simulations of all the compensation method are made.

本文定量分析计算电网电压暂降时DVR 逆变单元与电网的功率交换情况，详细研究逆变单元在各种补偿策略下的输出电压和有功功率与故障前后电网电压、负载电压和参考相量的具体关系，最后通过Matlab 仿真研究各补偿方法。

Secondly, On the basic of existing research about mode classification of E-U-R cooperation, combine high school in Xinjiang in the aspects of producing to learn to grind to cooperate of actual, high school in Xinjiang in the research result conversion, product and technical developments and produce to learn to grind the cooperation to induce appliedly serves to consult with the mode, technique to turn to let with technique for the technique the mode, cooperation development mode, set up the entity mode, school to do the industry mode, the university science and technology park totally of the mode six greatest modes, detailed analyzed the influence factor, merit and shortcoming of the manifestation, characteristic, implement of a mode and open the exhibition circumstance in Xinjiang, return for a mode chose the typical model with meticulous care of case example.

其次，在参考现有研究对产学研合作模式分类的基础上，结合新疆高校在产学研合作方面的实际，把新疆高校在科研成果转化、产品和技术的开发和应用方面的产学研合作归纳为技术服务和技术咨询模式、技术转让模式、合作开发模式、共建实体模式、校办产业模式、大学科技园模式六大模式，详细分析了每种模式的表现形式、特征、实施的影响因素、优缺点以及在新疆的开展情况，还为每种模式精心选择了典型的案例。

It does not require details to be provided for the type of handling which is implicit in normal use, and/or 最后总装 care - e.g., it is not necessary to recommend that a "sterile" device be removed aseptically from its packaging.

此需求仅与设备或其特性在使用前通过某些渠道进行改变的情况有关。不要求向操作&消毒&设备的包装远离防腐剂，没有必要介绍。种类提供详细内容，因为在常规使用中是不言而喻的。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。