工作分析

In the face of new position, we must perfect the rule of the management in one's status as a student, strengthen the management in examination,grade,alteration,bestir and other aspect. Then, we should fix the tenet of service for peop...

同时，学籍管理工作人员应该时刻牢记党的"全心全意为人民服务"的宗旨，注重工作的严肃性和原则性，增强学习、创新、统计分析等意识，并结合计算机网络等现代化技术的应用，不断加强管理的科学性，提高工作水平。

In the dissertation, principles of phase-shifted full-bridge ZVS PWM and push-pull boost converter are analyzed; Reason of duty ratio dropping out and solution measures are introduced at the same time; The magnetic biasing and ZVS methods of Lagging brachium are studied detailedly in the bidirectional DC converters.

在本文中首先分析了移相全桥式ZVS-PWM功率变换和推挽式DC／DC Boost功率变换的工作原理，分析了移相全桥式滞后臂实现零电压关断困难以及占空比丢失的原因以及采取相应的改善措施，分析了双向DC／DC变换器产生偏磁的原因以及采取抗偏磁的措施。

It also offers some suggestions on how to make the best use of the referee committee of track and field sports society as the brain truster and advisory body of decision in the construction and management of track and field sports referee staff, suggestions on taking a firm hold of teaching, helping and leading green-hands in completing the set of the orderly system of succession, and suggestions on improving the comprehensive management of the referee staff.

本文根据田径裁判工作的特点和要求，即工作的业余性，组织的松散性，室外工作，赛时集中；项目多样，规则复杂，规模不等，配套齐全，全面掌握，专长必擅，计量客观，直接见面，公正准确，独立裁决等，并通过对我国田径裁判员队伍基本现状的调查与分析，就如何加强田径裁判员队伍的建设与管理，提高其业务水平，试以初探。

The thesis firstly introduces the status of cadastre in our country, and some domestic progress in cadastre.

本文首先介绍了我国地籍工作的现状，国内地籍工作取得的一些成果；然后分析指出了如今地籍面向新形势下如何加快推进地籍管理现代化，全面提升地籍管理水平，更好地发挥地籍的保障功能和服务作用，使地籍工作实现系统化、法制化、信息化和产业化过程中存在的一些问题。

At the same time, combining with the actual condition of delivery pipeline of our country and some prevalent leak detection and location methods, this paper raised a method, which is based on wavelet analysis and negative- pressure-wave to detect and locate the leakage. Jobs in the paper are as follows:As affected by gas density, pressure, specific heat and pipe material, the velocity of negative-pressure-wave improved depending on the energy conservation. At one time, taking the affection of velocity of gas flow, the location formula was modified in some degree.When locating the leaks with location formula, the iterative approach algorithm was adopted as a new method to increase the location accuracy level of system.Multi-scale decomposition and reconstruction of wavelet transform is utilized to filter the noise of negative-pressure-wave, which was brought by leakage. With the capacity to detect the signal singularity fast and accurately, wavelet transform was used to catch the break point of pressure signal. The work improved the accuracy of At in location formula, accordingly improved the location accuracy.Wavelet is a suitable tool for signal analysis. The distinct character is that the mother-wavelet is of optional. That means choosing different mother-wavelet will get different analysis result. So we studied how to choose mother-wavelet and its scale for signal singularity detection. The method is to choose a wavelet by regularities of the wavelet and the signal.Finally, a plan, which bases on SCADA system for inspection and detection of natural gas leakage, is proposed in the article.

其中，主要进行了以下几方面的工作：针对泄漏产生的负压波在管道中的传播速度受媒介的密度、压力、比热及材质等因素的影响，而非声波在空气中传播的速度，本文利用能量守恒原理，对其进行了修正；考虑到管内气体流速对压力波速的影响，对原始的负压波定位公式进行了一定程度的改进，并在利用定位公式进行泄漏点定位时采用逐步迭代逼近算法，提高了系统的定位精度；利用小波变换的多分辨率分解和重构技术，对采集到的管道发生泄漏时产生的负压波信号进行了降噪处理；并利用小波变换技术对信号奇异点的快速、准确的识别能力，对经上述消噪后的负压波信号进行了奇异点捕捉，精确捕捉的结果提高了定位公式中上下游站点采集到的负压波奇异点的时间差△t的精度，从而进一步提高了定位的精度；考虑到小波变换是一种基波可变的信号分析工具，也就是说，不同的小波基波对信号分析的结果将有很大差别，这势必影响最终的处理结果，因此，我们又对比分析了本课题中小波基及尺度的选择问题，依据规则性系数相似性原理对母小波的选择进行了探索性研究；最后，还提出了基于SCADA的泄漏检测与定位系统的软件开发构想及系统的嵌入方案。

Using the sectional force and torque balance method to consider the effects of load force and temperature,provides a more completeness and systematic mathematical model.The working characteristic of bimetal strip is expressed by equivalent network.

采用综合考虑负载作用力及温度影响的分析条形双金属片的截面力－力矩平衡法，给出了较完整系统的数学模型；将双金属片用等效网络表示，用网络分析手段求解温度继电器、热继电器的工作参数；分析了在比弯曲最大的条件下各层界面、表面应力关系。

December 31, 2008, the county party committee held the whole of the 10th Five meeting, 17 in-depth implementation of the Third Plenary Session of the Central Economic Work Conference, the province's economic work of the municipal party committee and plenary meetings, review and sum up this year, the main , Analysis of current macroeconomic situation and arrangements for the deployment of work in 2009 focused on tasks, organize and mobilize the whole county cadres Zhuaji Yu good confidence, encouraging the spirit of a big, in order to strengthen the focus of the two, to create a new BinHai, take a step to speed up To the port of the times and strive together.

2008年12月31日，县委召开十届五次全体会议，深入贯彻落实十七届三中全会、中央经济工作会议、全省经济工作会议和市委全会精神，回顾总结今年以来的主要工作，分析研究当前面临的宏观形势，部署安排2009年工作的重点任务，组织动员全县干群坚定信心善抓机遇，振奋精神大干一场，为强化两个聚焦、打造崭新滨海，加快迈向大港时代而合力奋斗。

Then,the paper analyzes common-mode voltage and output voltage range of operational amplifier influenced by temperature and process problems that may appea.

基于混沌、均匀分布的真随机数发生器的工作电路和精度要求较高的电压参考电路的温度漂移进行分析，给出了仿真得到的温度曲线；分析了工艺中可能存在的问题和温度的影响与运放的共模电压和输出电压幅度，以及与混沌公式直接相关的开关电容等，根据最坏分析得到混沌公式，给出了仿真测试结果。

In this paper the commutate circuit principle and work process of the commutate circuit, the composing and work principle of frequency conversion circuit, main switch element IGBT structure feature turn on and turn-off process dynamic and static switch feature and the work principle of invert were analyzed .

本论文分析了整流电路及相控电路的原理和工作过程；变频电路的组成和工作原理；主开关器件IGBT的结构特点、导通及关断过程、动态静态开关特性；逆变电路的工作原理。

This paper analyses the deficiency of the process and puts forward a proposal to revise the stages of the process and to regulate the content of each stage, so as to standardize thejob of the weapon meteriel development, and impel the job in step and coordinated with theintegrated logistics support, and convert the materiel into...

现分析了原研制程序在这方面的不足，并提出修订研制程序的阶段划分并调整各阶段工作内容的建议；从根本上规范了武器装备研制工作，使其与装备综合保障工作同步进行和相互协调，以求所研制的武器装备交付部队使用后，能尽快形成战斗力。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。