进行状况

The second , aims at the problem that company face with, analyzecompanys exterior environment and internal condition : exterior environment analysis including general environment that consist of political,ecnomic,technology and society factors and professional environment,analysis including threaten of new incomer,competition between supplier,user and producer.

第二针对公司面临的问题，对公司外部环境及公司内部状况进行分析：企业的外部环境可以分为两个层面，即一般外部环境和产业竞争环境，一般外部环境分析四个方面的问题，即政治与法律方面，经济环境，技术环境，社会环境；产业竞争环境分析包括进入者的威胁，替代产品，购买者的议价实力，供应商的议价实力，产业内竞争。

In order to solve the inconformity between teachers education and elementary educational reform, and also to make a survey on the criteria of professional skills and the question of developing evaluation of new type students of normal university, we made a survey on the professional quality of high school teachers in thirteen areas of Liaoning province.

我国正在进行的基础教育改革对教师教育提出了新的要求，为了解决教师教育与基础教育改革不相适应的状况，为了研究新型师范生专业技能的标准及发展性评价问题，对辽宁省13个地区的中学教师的专业素质作了调查。

Contrast to the actual circumstances of Wuhan and Changchu, the conformity and the inconformity to the result of the model have been pointed out in chapter five. The reasons about this have been analyzed and some valid measures and suggestions have been brought up.

第五章在武汉市和长春市城乡边缘地带土地利用现状调查资料的基础上将模型的结论与城乡边缘地带土地利用现状进行了对比，指出了模型结论与实际土地利用状况一致的地方和不一致的地方，针对不一致的地方分析原因，并提出了解决问题的对策和建议。

Through seeking for a scientific and effectual evaluation theory and method on operating achievement for non-stated listed companies, it will urge them to know clearly about their real management status, to lead their enterprises to put scientific management into practice and to level up their operation. Thus non-stated listed companies can be in an indefectible position in the drastic market competition, what's more they can lead all non state-owned enterprises to grow in strength endlessly.

通过探索建立科学有效的民营上市公司的经营业绩评价理论和方法，将促使民营上市公司认清企业的真实经营状况，引导企业进行科学管理，促进民营上市公司的管理水平提高到一个新的层次，这样才有可能在激烈的市场竞争中立于不败之地，进一步带动所有的民营企业不断发展壮大。

The general development on direct current tuning-speed system is introduced in the first chapter briefly; form chapter 2 to chapter 5, the hardware design and calculation of the system are discussed indetail.

本文第一章简要介绍了直流调速系统的一般发展状况；从第二章到第五章讨论了系统硬件设计与计算；第六章给出了系统软件设计及流程图；最后一章对该调速系统的优缺点进行了总结。

ABSTRACT Aiming at problems of trans-vector controller in a vehicle-carried induction motor such as variable rotor and stator resistance following motor temperature, and their inductance varying with flux saturation degrees. Firstly, CSI and VSI are introduced, for CSI, it can hold the advantages both FOC and DTC using stator flux directional, PI parameter and simulation are also introduced. Secondly, equations of IM in the synchronous rotary frame and its static counterpart, as figuring in the saturation condition of magnetic field, are dealt in this paper and the simulation results are presented. Thereafter, the parameter designing of PI trans-vector controller is processed, which features the non-linear model. In practical realization, as neglecting the dynamical change of motor inductance, this paper employs online modification of inductance parameters, according to the flux saturation, then transforms the non-linear equations into linear ones, and so compacts the structure of controller. Thirdly, in view of the maximum torque output is extraordinary requisite when Electrical Vehicle start up, accelerate, and overtake, this paper issues the maximum torque when both inverter and battery capacity is corporeally definite. Fourthly, on-line differentiating and analyzing both rotor's time constants and its flux by using the expanding order reduction and discrete Kalman filter equation are fathomed, in order to realize high-performance trans-vector algorithm, and also the simulation results are presented. Fifthly, the close-loop regenerative brake system, when the EV's torque is set constant, is deduced; at the same time, unification of electric drive model and brake model is executed. Combined with maximum charge current demands, the mathematical model for online yielding torque as a demand.

本论文针对车载异步电机在矢量控制器所遇到的问题：定转子电阻随温度变化及随电机饱和程度变化的转子电感及定子电感而影响电机调速性能提出一套完整的解决方案：分析了电流型逆变器和电压型逆变器在实现矢量控制时控制器参数的计算，分析出对于电流型逆变器在采用定子磁场定向时，其性能同时具有矢量控制和直接转矩控制两者的优势，并对电压型逆变器在转子磁场定向下的模型进行了仿真研究；建立异步电机非线性模型，推导出考虑磁饱和时异步电机在同步旋转坐标系及静止坐标系下的方程，并做出了仿真结果，建立异步电机在非线性模型下的矢量控制调节器的PI参数设计，在实际应用中，若忽略电机电感的动态变化，可以根据当前的磁路饱和状态而在线修正电感参数，从而将非线性方程线性化，降低控制器的复杂度；考虑到电动汽车在起动和加速超车时需要电机有最大转矩输出，本文讨论在逆变器容量一定和电池供电能力有限的情况下电机最大转矩输出问题；推导了异步电机扩展降阶、离散卡尔曼滤波方程在线辨识转子时间常数和转子磁通，用于实现高性能的矢量控制算法，并给出了仿真结果；推导出了电动汽车恒转矩给定的闭环回馈制动系统，实现了电动控制模型和制动模型的统一，而且结合铅酸电池最大充电电流的要求，为制动转矩在线给定建立了数学模型；设计了基于双DSP系统的高性能矢量控制器软硬件框图，并以大量实验数据说明矢量控制在电动汽车应用的实际应用状况。

Huntcapacitor compensation is simple and economic, but it can not follow the change of inductive loadin system, it can not achieve dynamic compensation of reactive power.

VC可以根据电网中无功功率的状况进行无功补偿，但是，在实际应用中SVC离不开具有时滞性的大容量储能元件，不能做到瞬时无功控制。

Industrial health and occupational disease prevention and control to make encouraging progress, the completion of the toxic and harmful operation of the employers of occupational hazards and to declare the project the health of workers exposed to physical protection of workers and workplace health monitoring, Shifangyizhan for five consecutive years as the target-the-art management Unit.

劳动卫生和职业病防治取得可喜进步，完成了有毒有害作业用人单位的职业病危害项目申报和作业工人健康体检，对职工防护和工作场所卫生状况进行监督，市防疫站连续五年被评为目标管理先进单位。

That results too much work and most of all, the monitor becomes very inefficiently.

针对这一状况，作者提出对现有的信息检索工具进行改进，在网页信息监控中应用数据挖掘技术，以提高有害信息发现能力，净化网络环境。

This essay will make a brief introduction of administrative discretion, discuss the social foundation of its existence and its historical development, and analyze the advantages and disadvantages of the existing administrative jurisprudence theory and the control methods. This essay will figure that the traditional mode of administrative law has shown a great inelasticity.

本文在行政自由裁量权概述之后，深入考察了行政自由裁量权存在的社会基础和历史发展状况，并对现存的行政法学理论和控制手段进行了优缺评析，认为行政法的传统模式已经表现出极大地的不适应性。

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。