查询词典 respiratory system

Because of the influence of the planned economy, Chinese media, especially Chinese television have problems in personnel system. The reasonable competition system, hortatory system and providing system are not yet set up. The Newcomers have to accept their position at the bottom of the pecking order. Thus it can hardly make everyone develop his capability completely. The fair environment in which manpower could be distinguished himself is not yet existed. The system which could keep manpower, attract manpower and make him develop his whole capability is not yet set up. The variety problems of the traditional personnel system seriously interfere with the development of Chinese television.

由于受传统计划经济体制的影响，中国传媒业特别是电视业普遍存在着人事制度改革滞后的问题：科学合理的竞争机制、激励机制、分配机制尚未建立，论资排辈现象比较突出，难以做到人尽其才，才尽其用；能使优秀人才脱颖而出的公平环境和留住人、吸引人、使人力发挥自身最大潜能的机制尚未形成等等，存在着诸多问题和种种弊端的传统人事管理制度，严重制约着中国电视业的发展。

Manufacture the hyperboloid clutch with rollers, and it satisfy with the request of function and experimentation. At the same time, in the base of that the research of movement system、force system、sustain system、lubricate system、pressurize system、adjust of rotate speed system and so on.

同时，通过对转矩系统、轴向力加载系统、支撑系统、润滑系统、密封系统、转速调节系统、电压测试系统、电流测试系统的研制，研制出了一种对加载器力学性能进行测试验证的实验装置。

Based on two algebra Riccati equation method especially the structure of the system Hamilton matrix and system observability theory, the role of invariant zeros in constructing system reduced order controllers was given. That is, by the suitable selection of free parameters of the system H(subscript ∞) controller, some points which were symmetry with the unstable invariant zeros about the imaginary axis became the stable poles of the system controller which were not observable and could be reduced from the system, thus could get further reduced order controller.

基于2代数黎卡提方程方法，特别是系统Hamilton矩阵的结构特点和系统可观测性理论，论述了不变零点在构造系统降阶控制器中所起的作用，即通过选择控制器的自由参量，使某些不稳定的不变零点关于虚轴对称的点构成系统控制器不可观的稳定极点，从而实现了控制器进一步降阶。

Has twoway regulat-ing action to central nerve system, cardio-vascular system, blood system, immune system, incretion system, urinary system, etc.

对中枢神经系统、心血管系统、血液系统、免疫系统、内分泌系统、泌尿系统等具有双向调节作用。

The thesis contains five chapters. The first chapter summarizes the development and research of switched reluctance drive, discusses the main research direction, and explains the main work in this paper. In chapter 2, hardware system which includes the design of power converter and various control circuit is discussed. TMS320LF2407 DSP is used to design the hardware circuits of SRM control system, and design details including the current detection, position sensing, fault protection, speed detecting, keyboard and display etc. are provided. Because of the full use of the abundant peripheral resources of DSP, it comes to the aim simplifying the circuit structure and heightening the reliability. In chapter 3, the application of neural network on SRM control system is introduced, a new the application of neural network and the method of sampling is proposed and a simulation system based on Matlab/Simulink is established. Chapter 4 discusses the routine designing issue. Because the modularized programming method is adopted, and multi-interrupt processing technique is used, operation efficiency of the control software is highly raised. At last, the foregoing SRM control system is tested. Speed adjustment is realized, and other targets on the research and design of SRM control system are reached, which establishes a good foundation for further research.

本文共分五章，第一章概述了开关磁阻电机调速系统(Switched Reluctance Drive，简称SRD)及其发展和研究现状，论述了其主要研究方向，并说明了本文的主要工作；接下来的一章主要讨论了SRM的硬件系统，主要包括功率变换器的设计和各种控制电路的设计，本文以TMS320LF2407为核心设计了开关磁阻电机控制系统硬件电路，给出了包括电流检测、位置检测、故障保护、测速电路及键盘和显示电路等部分电路的详细设计，充分利用了DSP的丰富外设资源，达到了简化电路结构、提高运行可靠性的目的；第三章介绍了人工神经网络在开关磁阻电机控制系统中的应用，提出了一种新的应用方式(利用GPFN神经网络调节PI参数)以及如何采取样本，搭建了基于Matlab/Simulink的仿真系统；在第四章中，讨论了开关磁阻电机控制软件的设计，采用模块化编程方法，采用基于多中断的控制程序，提高了控制软件的效率；最后，对所设计的开关磁阻电机控制系统进行了实验，实现了电机调速，达到了开关磁阻电机控制系统研究和设计的预期目标，为更近一步研究打下了基础。

In Chapter 3, according to the consumer demand, the functional module of the embroidery machine control system is divided, the overall framework of the system is constructed, and the function of each module is analyzed in particular. The CPU chips of master system and slave system, the real-time operating system and the development environment, which are applicable to the embroidery machine control system, are chosen in terms of the lectotype principles.

第三章根据市场需求划分了绣花机控制系统的功能模块，构建了系统总体架构，并分析了每个模块的具体功能；根据选型原则选出了适用于绣花机控制系统的上位机和下位机CPU芯片、操作系统及开发环境。

Through the comparative analysis between the functions of the government"s'role in establishing a social security system in Britain, the US, Germany, Japan and other countries and Chinese government"s absence from their duties in establishing rural social security, we know, under the socialist market economic conditions, the government should bear the basic responsibilities in establishing the rural social security system, just to build a basic framework of the rural social security system adapted to the level of economic development, to establish a rural social security management system, to bear national financial responsibility in establishing the rural social security and promote mufti—dimensionally raising funds, to establish a rural social security monitoring mechanism, to establish a rural social security law system, to create external environment of the rural social security system, and so on.

在英、美、德、日等国构建社会保障制度中政府职能的角色定位与我国农村社会保障政府缺位的比较分析中，我们得出，在社会主义市场经济条件下，构建农村社会保障体系中政府应承担的基本职责，即构建和经济发展水平相适应的农村社会保障制度的基本框架，建立健全农村社会保障管理体制，承担国家对农村社会保障的财政责任并推动多渠道筹集资金，建立健全农村社会保障的监管机制，推动农村社会保障的法律体系建设，创造农村社会保障制度建设的外部环境等等。在当前的条件下，我国政府应着手采取现实可行的具体措施来履行其职能、推进我国农村社会保障体系的建设。

Two degrees of freedom numerical control sliding table based on embedded microcontroller is a typical system of mechantronics. It consists of machine system, electronic information processing system, power system, sensor and measurement system,and actuator system.

基于嵌入式微处理器的两自由度数控滑台是典型的机电一体化系统，包括机械系统、电子信息处理系统、动力系统、传感检测系统和执行元件等。

Simulation results show that the performance of the open-loop control system is poor when the model parameters change. The second system is designed via feedback linearization method. Since the path signal is introduced as feedback signal, the designed closed-loop control system improves the system robustness to the parameter perturbation. Simulation results verify that the closed-loop control system shows better performance than the time optimal control system.

前者侧重于时间最短的控制性能，但由于是开环控制，当出现参数摄动时，系统的性能会受到较大影响；后者由于引入了飞艇轨迹的反馈信号，因而相对提高了系统对参数摄动的鲁棒性，计算量较小，并且仿真结果证实了这种闭环系统设计方案可以抑制参数摄动带来的影响，与时间最优开环控制系统相比，显著提高了控制精度、改善了控制效果。

At first, defined the goal and principle of the graduates unemployment security system; Then by compared the unemployment insurance system and unemployment social salvation system, points out that now establishing the graduates unemployment insurance system is not advisable; from reviewing other countries'experience and our country's actual graduates employment policies, unemployment social salvation system is necessary and possible .At last conclude that such a basic-incorporate graduates unemployment security system should be set up: the government salvation as the base, incorporate the existing employment policies, social salvation and social participancy etc, ensure the unemployed man's living, at the same time develop employment salvation service just like careers guidance training service and so on, the government, the college and graduate individuals should undertake these responsibility together ,and it should be supported by the whole social forces.

大学生失业已经成为一个社会问题，它增加了巨大的潜在社会压力与社会成本，影响社会的稳定；失业保障制度作为一种被动的失业治理政策有其存在的理论基础；政府与社会是大学生失业问题的责任主体，政府公共管理责任与政府战略选择，就自然应竭力减少大学生失业对社会长期发展的威胁，而我国现行失业治理机制在大学生失业保障方面严重缺失；比较而言，目前很多国家都已具备较成熟的青年及大学生失业保障体系，因此必然要求我国尽快建立起大学生失业保障制度体系。

But this is impossible, as long as it is engaging in a market economy, there are risks in any operation.

但是，这是不可能的，只要是搞市场经济，是有风险的任何行动。

We're on the same wavelength.

我们是同道中人。