30 research outputs found

    Design And Development Of Constructing Platform Of General Substation Multimedia Training And Simulating System

    Get PDF
    提高变电站运行人员的素质是提高电力系统运行的安全性和可靠性的一个重要的前提。目前,国内的一些科研院所和高等院校已经开发出多种用于运行人员培训的仿真培训系统,并取得了很好的应用效果。但是,它们一般都是针对某一特定的变电站开发的,大都存在着开发周期长、通用性和可维护性差的问题。因此,本文针对现有系统的不足,在对多种变电站的实际情况进行了研究的基础上,首次提出了变电站仿真培训系统平台化的思想,研究开发了通用多媒体变电站仿真培训系统构建平台,为实现系统的商品化和通用化打下基础。本文在研究变电站多媒体仿真培训系统构建平台的过程中主要完成以下几个方面的工作:第一,对不同变电站及变电站内的一、二次设备特性进...Improvement of substation operator’s diathesis is one of the important preconditions for security and reliability operation of power systems. At present, many simulation and training systems have been developed and well used for operator training. However, they are all developed for a certain substation and generally have some shortcomings such as too long developing time, the unsatisfactory gener...学位:工学硕士院系专业:计算机与信息工程学院计算机科学系_计算机应用技术学号:20024000

    磷酸盐氧同位素在有机磷降解研究中的应用

    Get PDF
    磷的有机化合物广泛分布于土壤和水体中,发挥着重要作用的同时,也给环境带来潜在的污染。研究有机磷化合物的磷循环过程对于防控磷的污染有着重要作用。磷酸盐中的氧同位素作为一种地球化学的示踪剂,近年来被广泛应用于研究磷在自然界中的循环过程。本文总结了磷酸盐中氧同位素的应用原理以及其在有机磷降解和溯源方面的应用,并在此基础上展望本领域下一步的工作重点。中国国家自然科学基金(41173113);;中国环保部公益项目(201509049

    中国河南两株庚型肝炎病毒(HGV)NS5区部分cDNA的克隆与序列分析

    Get PDF
    通过逆转录-聚合酶链反应从我国河南省2例重叠感染HCV或HBV/HDV的献血员中,分离到HGVNS5区的部分cDNA,对其进行序列分析比较,结果表明:河南株HGVNS5区核苷酸与两株中国HGV株的同源性(>91.9%)高于国外代表株(88.5%-90.6%),但由核苷酸推导的氨基酸的同源性都无明显的地区性区别。HGVNS5区氨基酸序列较保守(同源性>91%),缺乏明显高变区。中国4株HGV在7384位发生了由C→T的变异,从而导致一个共同的保守位点的产生(由F→A)。重叠感染其他肝炎病毒时,河南株HGVNS5基因结构并无特异性改

    Identification of hepatitis C or/and G virus RNA in one tube by reverse transcription nested polymerase chain reaction

    Get PDF
    目的庚型肝炎病毒(HgV)与丙型肝炎病毒(HCV)同属黄病毒科,且传播途径相似,重叠感染率高,本研究旨在建立一种同时检测HgV与HCV感染的方法。方法根据HCV与HgV的基因序列分别选取5’-uTr(HCV)与nS3(HgV)的两套引物,在同一管内进行逆转录-巢式聚合酶链反应,并初步应用于153例标本。结果该方法能同时检出HgV与HCV感染,扩增片段大小与设计相符。结论该方法简便特异,适用于临床检测Hepatitis C and G viruses belong to the flaviviridae family.They have similar modes of transmission.The dual infection of HGV and HCV were reported.A simultaneous detection for HCV or/and HGV was established by reverse transcription nested polymerase chain reaction(RT-nested PCR).The primers were derived from the 5'non-coding region of HCV and NS3 region of HGV ,and the length of the PCR product was between 170bp and 300bp.RT-nested PCR can be finished in one test tube and HGV and /or HCV can be detected simultaneously in one RT-nest PCR.153 samples were detected by his method.Our results showed that the established assay is useful for screening and identification of HCV or/and HGV RNA.This method is simple and specific practicable.国家九五课

    A general substation training and simulating system constructing platform

    No full text
    介绍了一种通用的变电站仿真培训系统构建平台,文中就系统开发的技术基础、系统功能、系统设计及系统特点进行了详细叙述,该系统具有通用性强、易维护、实用性强等特点。利用该系统,用户可以根据自己需要很容易地构建针对自己变电站的仿真培训系统。该系统的研究成功,将大大缩短变电站仿真培训系统的开发周期,为变电站仿真培训系统的推广提供一个良好的软件开发平台。This paper introduces a general substation training and simulating system constructing platform.It details technology base,system function, system design and its characteristic.This system has the characteristic of generally employing and expediently maintaining and better practicability.Using this system, users can construct easily a training and simulating system for their own substations according to their demand.Its successful development will greatly shorten the development cycle of the substation training and simulating system, and provide a good software development platform to popularize the substation training and simulating system

    General Substation Training and Simulating System Platform Based on the ActiveX Technology

    No full text
    目前培训运行人员的变电站仿真培训系统一般都是针对某一特定变电所开发的,普遍存在通用性较差、不易于扩展和维护等缺点.介绍了一种通用的变电站多媒体仿真培训系统构建平台,就ActiveX技术与ActiveX控件的开发、系统功能、系统实现及系统特点进行了详细叙述,该系统具有通用性强、易维护、实用性强等特点.利用该系统,用户可以根据需要容易地构建针对某一具体变电站的仿真培训系统,大大缩短了变电站仿真培训系统的开发周期,为变电站仿真培训系统的推广提供一个良好的软件开发平台.Now,the substation training and simulating system that is used to train the operators is generally developed to aim at a certain substation,so it universally has the disadvantages of no generally using and no expediently extending and defending.This paper introduces a general substation multimedia training and simulating system constructing platform.It depicts the details of ActiveX technology and development of ActiveX controls,function and implement and characteristic of the system.This system has the characteristic of generally using and expediently defending and better practicability.Using this system,the users can construct easily a training and simulating system for their own substations according to their demand.Its successful development will shorten greatly the development cycle of the substation training and simulating system,and will provide a good software development platform to popularize the substation training and simulating system

    The Implementation of Substation's Main-line Diagram Drawing Platform Based on the Object-oriented Technology

    No full text
    就对象分析、图元类的建立、编程技术、平台的实现方法及特点进行了详细叙述 ,在实现方法上采用面向对象技术 ,在Windows环境下 ,利用VisualC + +及其MFC类库的支持功能和序列化存取机制 ,通过对变电站主接线图的分析 ,建立了一系列的图元类来描述相应设备对象的属性和特征 ,从而实现了面向对象的变电站主接线图的绘制。The details of objects'analyses,the establishment of icon classes,programmed technology and the implementation and characteristic of this platform are Presented This platform implementation method is the object oriented technology It is accomplished with support functions of Visual C++ and MFC class libraries and sequence accessing mechanism under windows environment by establishment of a series of classes to describe the attributes and characteristics of corresponding object

    全煤巷支护全过程损伤机理数值模拟研究

    No full text
    文章通过对全煤巷被动—主动支护机理的损伤分析,得到岩锚柱单元对裂隙岩体刚度矩阵的"贡献",确定全煤巷支护复合岩体的损伤本构关系;采用有限元软件进行数值计算,建立损伤模型,对全煤巷支护之前和支护之后的应力、应变及损伤演化进行分析,得到锚固定量参数,为此类巷道的支护提供有效的方法和可靠的依据

    城市生活垃圾焚烧体系化学热力学平衡分析

    No full text
    采用化学热力学平衡分析方法,分析城市生活垃圾焚烧体系污染物的排放特性。主要计算了聚氯乙烯(PVC)及典型城市垃圾焚烧过程氯元素的化学平衡组成及其浓度,同时研究了脱氯剂对PVC及垃圾中氯转化的影响。计算结果表明,PVC热态反应的主要产物是HCl气体,在加入脱氯剂后温度低于600℃时,脱氯剂对HCl的脱除作用很明显;城市生活垃圾热解和燃烧过程中在温度超过600℃,垃圾中的有机氯和无机氯都将转化为HCl气体,而此时脱氯剂失去效果。由计算结果得到控制HCl生成,消除二噁英污染物的生成反应工艺条件

    城市生活垃圾焚烧体系化学热力学平衡分析

    No full text
    采用化学热力学平衡分析方法,分析城市生活垃圾焚烧体系污染物的排放特性。主要计算了聚氯乙烯(PVC)及典型城市垃圾焚烧过程氯元素的化学平衡组成及其浓度,同时研究了脱氯剂对PVC及垃圾中氯转化的影响。计算结果表明,PVC热态反应的主要产物是HCl气体,在加入脱氯剂后温度低于600℃时,脱氯剂对HCl的脱除作用很明显;城市生活垃圾热解和燃烧过程中在温度超过600℃,垃圾中的有机氯和无机氯都将转化为HCl气体,而此时脱氯剂失去效果。由计算结果得到控制HCl生成,消除二噁英污染物的生成反应工艺条件
    corecore