机构

From a view of Rational Expectation, this paper, on the basis of both theory and demonstration, analyses the status of Chinese Institutional Investor"s expectation through studying the development status of Chinese Institutional Investors and draw a conclusion that Chinese institutional investor"s expectation is at the phase of quasi rational expectation .

本文从理性预期的角度出发，通过对影响中国机构投资者预期形成的中国机构投资者发展状况的分析，从理论到实证对中国机构投资者的预期状况进行研究，得出了我国机构投资者预期处于准理性预期阶段的结论。

Wheel, track and walking wheel are three main kinds of the walking mechanisms on the developed air-cushion vehicles.

目前已开发的气垫车辆所采用的行走机构有轮胎、履带、步行轮等三种，虽然气垫车的垫升机构可以明显降低它们的接地比压从而减少了行驶阻力，但依然存在着行走机构自身重量大，结构复杂以及在软湿地面上的滑转、粘土等一系列问题，另外，限于行走机构的几何尺寸影响，这些车辆的抓地位置仅作用于表层土壤，对于表层土壤含水量严重饱和并且硬底层较深的地面来说，甚至使车辆无法行驶和作业，严重阻碍了气垫车辆的推广应用。

This paper puts forward a new type transmission of swing link rack drive,discusses its structure and principle of transmission, analyses its authenticity of movement and transmission feature, which provides a theoretical basis for further research.

通过机构演化提出了摆杆齿条变程器这种新型传动机构，介绍了此机构的结构和工作原理，讨论了其运动的确定性，概括了其传动特点，为该机构的进一步研究提供了理论基础。

The invention includes a bridge, a bridge traveling mechanism, a crane trolley, a telescopic boom and a telescopic traveling mechanism; wherein the bridge traveling mechanism drives the bridge to travel longitudinally along the track on elevated beams on the two sides; the crane trolley travels laterally along the track on the bridge; the telescopic boom is arranged between the crane trolley and the bridge, the crane trolley travels laterally along the track on the telescopic boom; and the telescopic traveling mechanism drives the telescopic boom to travel laterally along the track on the bridge.

本发明包括桥架、桥架运行机构、起重小车、伸缩臂和伸缩运行机构；其中，所述桥架运行机构驱动所述桥架沿两侧的高架横梁上的轨道纵向运行；所述起重小车沿所述桥架上的轨道横向运行；所述伸缩臂设置在所述起重小车和所述桥架之间，所述起重小车沿所述伸缩臂上的轨道横向运行；所述伸缩运行机构驱动所述伸缩臂沿所述桥架上的轨道横向运行。

Abstract］ objective to understand the medical institutions in the use of pressure steam sterilizer in the effect and the influencing factor,explore regulatory measures.methods with the spot investigation and scene examination,3mtmattest pressure steam sterilization and biological indicator train was used to monitor the effectiveness of disinfection.results in the monitoring of the 238 chinese medical institutions equipped with pressure steam sterilizer 337 units,the sterilization rate was 95.2%,medical institutions had different levels of disinfection and sterilization equipment,a large gap was between the level of management,equipment failure,non-standard operation,operator training without sterilization were the main reasons for failure.conclusion in medical establishment with the pressure steam sterilizer,antiseptic qualified rate is not too high,strengthening the pressure steam sterilizer purchase card management,standardizing the operation,stepping up supervision are the key to increase pressure steam sterilizer sterilization effect.

目的 了解医疗机构使用中压力蒸汽灭菌器使用效果及影响因素，探讨监管措施。方法采取现场调查及现场检测相结合的方法，采用3mtmattest压力蒸汽灭菌生物培养指示剂进行消毒效果监测。结果在监测的238家医疗机构中共有压力蒸汽灭菌器337台，灭菌合格率为95.2%，各级医疗机构对消毒灭菌设备的管理程度差距较大。设备发生故障、操作不规范、操作人员未经培训等是造成灭菌不合格的主要原因。结论医疗机构使用中压力蒸汽灭菌器灭菌合格率不高，加强对压力蒸汽灭菌器进货索证管理，规范操作，加大监管力度是提高压力蒸汽灭菌器灭菌效果的关键。

In this paper RoboCup Mid-size Robot are the object of study from the two sides of the robot system and the system of multi-robot cooperation, the main research results are as follows: First, this paper reasearches the problom of the hardware and software architecture of Mid-size robots. According to the real-time requirements of the competition, the paper designs the mechanism of omni-direction wheels, which achieves a great improvement on the traditional mechanism of two wheels robot, and a more flexible response. This mechanism can adapt well to the increasingly rapid pace of the competition. In allusion to the mechanism of omni-direction wheels, this paper designs the electrical control system of three nodes in the bottom, which could communicate fast to the laptop with serial port and match the real-time requirements well. According to the problom of hitting power and speed of robot when shooting, this paper designes a motor-driven tongue-shaped spring shooting mechanism, which has a simple mechanical structure, smaller space in size and simple control circuit. This shooting mechanism meets the real-time requirements of the competition better.

本文以RoboCup中型机器人作为研究对象，分别从机器人自身系统和多机器人协作系统两个方面进行了研究，主要研究成果如下：首先，研究了中型机器人的软硬件体系结构问题，针对实时比赛的要求，提出了万向轮机构的设计方案，大大改进了传统两轮机器人结构，动作反应更加灵活，该机构能够很好的适应节奏越来越快的比赛；针对万向轮机构，设计了3节点的底层电机控制系统，它可以通过串口与上层笔记本电脑快速通讯，能够很好的实现实时工作要求；针对机器人射门时击球力量和速度的问题，设计了一套电机驱动的舌形弹簧射门机构，机械结构简单，占用空间体积小，控制电路简单，较好的满足了比赛中实时射门的要求。

The lift course of hanging device on wheat no-tillage planter was simulated by using the software of ADAMS. Some important parameters were obtained such as height of the working part relative to ground, the distance between the working part and the rear wheel of tractor, the angle of road pass and the force of hanging point, etc. The key parameters of the hanging device and its best working parameter of hanging device were found out through optimization simulation. Simulation results showed that suspension point had minimum force when variable DV_1 and DV_2 gained corresponding maximum and minimum at scope of structure limit.

应用ADAMS软件对小麦免耕播种机悬挂机构提升过程进行了动态仿真，得到了工作部件的位置高度、工作部件与拖拉机后轮之间的间距、路面通过角以及悬挂点的受力等参数，找到了悬挂机构的关键参数，通过优化仿真，得到了悬挂机构的最佳工作参数，仿真结果表明，设计变量DV_2、DV_3在结构受限范围内分别取其最大值和最小值，悬挂机构悬挂点受力最小。

The transmission mechanism is a plane six-bar mechanism that is made up of two plane four-bar mechanism. Its natural frequencies and mode shapes are obtained by overlapping and synthesizing the mode of each component.

主传动机构是由2个平面四杆机构串联而成的平面六杆机构，通过对各构件的模态进行模态叠加和模态综合，得到传动机构的固有频率和振型。

Continuation--Optimization method is proposed for approximate synthesis of linkages The synthesis of planar four-bar and six-bar linkages are studied using this method and several solutions are obtained. Thus, selection of the optimum solution for approximate synthesis of linkages is realized.

提出了机构近似综合的连续---优化法，并应用该方法研究了平面铰链四杆及六杆机构的函数综合，得到了多组机构尺寸方案，实现了机构近似综合的多方案优选。

Based on the distance of two common joint between the basis four-bar and the dyad that a Stephenson six-bar chain contains, the theory and method to identify the circuits of Stephenson six-bar chain are presented.

在机构的精确点位置综合中，如果其设计位置位于不同的回路，那么机构必须重新装配才能实现设计位置的运动，则说机构存在回路缺陷，在实际中这种机构是无用的12一'2。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。