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Usually, distribution networks operate in arborescence mode, so in the simulation of fault analysis the impact of faulty switch element on system reliability is apportioned to failure consequences of adjacent sections that connect to switch, and then an equivalent analytical model considering switch fault is proposed. Thus, not having to conduct the reliability analysis of switch element singly, the impact of switch element fault on system reliability can be calculated. Applying the proposed algorithm in RBTS-BDS6 system, RBTS-BUS4 system and actual medium-voltage distribution network to conduct reliability assessment, the results show that the proposed algorithm is superior in speed and possesses efficiency and engineering practicality.

配电网常具有树状运行特点,在故障解析模拟时,将开关元件故障对系统可靠性的影响分摊到连接开关的相邻分块的故障后果中,进而提出计及开关故障的可靠性等值解析模型,不需单独进行开关元件故障的可靠性分析即可计算其对系统可靠性的影响,应用该算法对RBTS-BUS6和RBTS-BUS4系统及实际中压配电网进行了可靠性评估,结果表明该算法有较明显的速度优势,具有高效性和工程实用性。

Thirdly, Through the introduction of the Burckhardt road model 、Gim tire model、bus brake model and Time-domain model of road roughness ,ABS system with a fuzzy controller based on the slip rate deviation and deviation rate of change was designed. The ABS system on account of impacts of air suspension and road roughness were analyzed, and its result showed that air suspension system and braking system need joint control.

第三,通过引入了描述单轮特性的Burckhardt的路面模型、Gim轮胎模型、客车制动器模型和时域路面不平度模型,并在此基础上设计了基于滑移率偏差和偏差变化率的ABS模糊控制器,对计及空气悬架和路面不平度影响的ABS进行了分析,进而说明了空气悬架系统与制动系统进行联合控制的必要性。

This paper provides the analytic method to calculate the value of Green s functions in space domain at the zero distance by the discrete complex image theory,that is ,to express the finite progressional sum of Green.

对此,本文在讨论采用离散复镜象理论计算空间域Green函数时,提出了采用该镜象理论计算空间域Green函数零距离处奇异值的解析方法,即,采用Taylor公式展开镜象理论得到的空间域Green函数的有限级数和形式,并结合特定的分域基函数来得到零距离处Green函数奇异值的解析计算式进行计算。

This paper provides the analytic method to calculate the value of Green"s functions in space domain at the zero distance by the discrete complex image theory,that is ,to express the finite progressional sum of Green"s functions detained with DCIT into Taylor expansion and deduce the analytic expression of the singularities at the zero distance with the help of the specific subdomain base functions.

对此,本文在讨论采用离散复镜象理论计算空间域Green函数时,提出了采用该镜象理论计算空间域Green函数零距离处奇异值的解析方法,即,采用Taylor公式展开镜象理论得到的空间域Green函数的有限级数和形式,并结合特定的分域基函数来得到零距离处Green函数奇异值的解析计算式进行计算。

The results of calibration of 4He in desorption system show that the correlation coefficient is more than 0.99 and the contribution of memory effect can be ignored. The contribution of ionized atom T(superscript +) for partial pressure of m/e=3 is very little and is determined according to I+≈0.01I(subscript T2)+, so the measurement of 3He can be done without interference of T(superscript +). The relationship between gases release rate and annealing temperature can be obtained after the data are smoothed and differentiated.

研究结果表明:四极质谱计标定解吸系统内4He的分压<350 Pa时,其相关系数R>0.99,且记忆效应的贡献极弱;离子态氚T对m/e=3组分分压的贡献可按I+≈0.01I(下标 T2)+确定,不干扰3He的测定;将气体解吸所得的积分数据经平滑并微分处理后可准确得到气体释放速率与退火温度的关系,即热解吸谱。

Some consumers believe that the quality of their homes is good, there is no need of warranty, a warranty is only against those who question the quality of the local; Some companies offer consumers in the review decoration, the decoration companies should occur after-sale warranty costs negligibility, Often this part of the costs as unreasonable and cut, but in fact the view is incomplete.

有的消费者认为,自己家的工程质量很不错,没有必要保修,保修仅仅是针对那些出现质量问题的地方;还有一些消费者在审查装饰公司的报价时,把装饰公司售后服务保修应该发生的费用忽略不计,往往把这部分费用视为不合理而砍掉,但实际上这样的观点是不全面的。

So,it is necessary to consider the deformations of members of a mechanical system when we deal with dynamic problems.

机械系统动态性能的好坏将直接影响系统的安全性与可靠性,因此,在对机械系统进行动力学分析时,计及各部件变形的影响就显得非常必要。

In cooperation with the serial NSPO sounding rocket programs and application of the research results of the Institute of Aeronautics and Astronautics, National Cheng Kung University in the current proposal, we propose a series of Indigenous Propulsion Experiment payload Onboard Sounding Rockets, including: hydrazine monopropellant, hydrogen peroxide monopropellant, micro-propulsion and bipropellant subsystem. In the first stage of this multiple-year project, in two years (2005/4/1~2006/12/31) with two phases (phase I: 2005/1/1~2005/6/30 and phase II: 2005/7/1~2006/12/31) we will be compliant with the NSPO sounding rocket launch schedule of 2006 and develop the hydrazine thruster system onboard the sounding rocket as the payload to verify the key techniques and the thruster system developed.

本计画第一阶段预计以两年时间(民国94年4月1日起至95年12月31日止)分两期(第一期自民国94年4月1日起至94年9月30日止,第二期自民国94年10月1日起至民国95年12月31日止)配合NSPO的民国95年的探空火箭发射规划时程,发展联胺单基推进器系统做为探空火箭酬载,除了验证自主发展的推进器系统与关键技术外,并进行高空实验以进一步模拟测试该系统在高空环境与微重力状态的性能特性。

As professor of physics at the University of Wurzburg, he was experimenting with a Crookes' radiometer when he noticed that when cathode rays struck the end of the tube, rays of a new kind were emitted that were capable of penetrating matter.

作为Wurzburg大学的物理教授,Roentgen当时正在使用Crookes的放射计进行试验。他注意到当阴极射线撞击到射线管的末端时,会发出一种能够穿透物体的新型射线。

Although Otlet spent his entire working life in the age before computers, he possessed remarkable foresight into the possibilities of electronic media. In 1895, the 27-year-old Otlet met a kindred spirit in the future Nobel Prize winner Henri La Fontaine, who joined him in planning to create a master bibliography of all the world's published knowledge.

奥特雷在世时,电脑虽然尚未问世,他却能洞烛机先,看出电子媒介前途不可限量。1895年,年方27的奥特雷和后来荣获诺贝尔和平奖的亨利E拉方丹志趣相投,共同计画为全球已印行的书籍建立一套「总目」。

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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.

然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。

A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.

付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。