工作分析

The groundwork of this text is as follows:In understanding the graphic presentation characteristic of the construction drawing of the building, foundation of content. At building the semantemes of construction drawing, building construction drawings understanding tactics and content gone on detailed analysis understanding. Have laid a good foundation for the following understanding of the construction drawing; According to the expression characteristic of the construction drawing, utilize the technology of OOP, Adopt C ++ language and draw the level models of fire control feature; It carries on deep analysis to DXF file format give and a method of read DXF file. On the basis of reading DXF file and familiar with understanding to the form of DXF file, study to the pattern recognition methods of fire control facility.

本文的主要工作如下：在了解建筑工程图的图示特点、内容的基础上，对建筑工程图的语义、理解策略、建筑消防审查等内容进行了详细的分析，为后面的工程图的理解打下了良好的基础；根据工程图的表达特点，利用面向对象的程序设计方法，采用C++语言，得出了消防特征类的层次模型；对DXF文件格式进行深入的分析，并给出了读取DXF文件的方法；在读取DXF文件和对DXF文件的格式熟悉了解的基础上，对消防设施的图形识别方法进行了研究，提出了实效的图形识别的方法。

On the basis of the characteristics of data collection, and task schedulers, this article proposes the structure of distributed server and a priority-based task scheduling and load balancing model, and then analyzes the model in a detailed way.

本文根据电量数据采集的特点，提出了基于分布式系统的体系结构及任务优先级的任务调度与负载均衡的模型，分析了数据采集的任务分配模式及其工作原理，讨论了任务粒度对动态分配效果的影响，提出了动态分配模式下的任务分配策略，同时对模型的特点进行了较为详尽的分析。

RoMAS defines every role must be played by one agent class at least and it allows a Agent to be played by more than one role,so the design models which include the Agent Class Diagram, the Behaviors State Diagrams, and the Communication Class Diagrams becomes more complex .

为了解决该设计工作的复杂性，人们希望设计转换系统，自动转换分析模型成为设计模型，这样，若要获得正确的可执行代码，至少可在分析阶段就能获得保证。

This thesis firstly discusses some research focus of high-frequency power supply and variable circuit topologies are compared here. Then it emphasizes the operating principle of phase shift full bridge converter and realization of soft switching techniques.

首先简单讨论了目前高频开关电源的研究热点，对各种变换电路拓扑结构形式进行了分析比较，然后重点分析了移相全桥变换器的工作原理和软开关技术的实现。

For the first time, a screw pile and pile driver system for preventing flood and rushing to deal with an emergency was manufactured. The screw piles of the system is different from screw drills used to sap, and it doesn't push soils out. Analyses, including the screw pile's structural strength analysis and the screw blade's welding analysis, were done by ANSYS, which showed that the screw pile's structural strength is enough and that the distort of the screw blade is small. Testing on the screw pile and pile driver system showed that the system performed stably and could meet the need of preventing flood and rushing to deal with an emergency. A mechanics model of interaction of a screw pile and soil was built, and expressions of torque of screw pile's cylindrical part on the condition of screw pile's crew part being driven into soil fully were gained, then the relation of the torque with screw pitch and out diameter of cylinder, which shows the torque decreases with the screw pitch increasing, and that the torque increases with the out diameter of cylinder increasing, which was according with the experiments of the screw pile's being driven into soils, and thus a screw pile with the best structure was chosen. Experiments of bionic surface showed that, on the condition of certain pressure on the surface, the protruding bionic surface can not reduce adhesion and resistance and that the corrugated bionic surface can reduce adhesion and resistance. An orthogonal experiment of the corrugated bionic surface was done with the factors including the width of protrusion, the space between two protrusions, the trolley's velocity and the vertical surface pressure and with the surface frictional coefficient as the experimental target, and some inclusions were drawn that the best combination of the factors was acquired and that the width of protrusion affected the surface frictional coefficient remarkably.

研制了防汛抢险螺旋桩机系统，提高了沉桩作业效率；利用ANSYS对桩体进行整体结构强度分析以及螺旋叶片的焊接分析，表明桩体结构强度足够，焊接过程中，螺旋叶片的变形小；对整个螺旋桩机系统进行试验，表明该系统性能可靠，工作稳定，作业效率高，能够满足防汛抢险沉桩作业基本需要；建立了螺旋桩桩土作用力学模型，得出螺旋桩沉桩过程中螺旋桩螺旋部分完全进入土体时螺旋桩圆柱部分所受扭矩以及扭矩与防汛抢险螺旋桩的螺旋导程和圆柱外径的关系曲线，表明螺旋桩螺旋部分完全进入土体时螺旋桩圆柱部分所受扭矩随着螺旋导程的增大而减小，随着圆柱外径的增大而增大，这与螺旋桩沉桩试验结论相符合，据此优选出最佳结构的螺旋桩；仿生曲面试验表明，尺寸较小的球冠突起型仿生曲面在一定压力作用下未能起到减粘降阻的作用，而尺寸较大的波纹型仿生曲面相对平板具有一定的减粘降阻作用；以波纹型仿生曲面突起宽度、波纹型仿生曲面两突起之间间距、台车的牵引速度以及叶片表面垂直载荷为因素，以曲面摩擦系数试验指标进行正交试验，寻求出在一定试验条件下最佳因素水平组合；波纹型仿生曲面突起宽度在本试验条件下对曲面摩擦系数影响显著，而其它几个因素对曲面摩擦系数影响均不显著；通过波纹型仿生曲面突起宽度和台车牵引速度的单因素试验，表明曲面摩擦系数随着仿生曲面突起宽度的增大而减小，而随着台车牵引速度的变化基本保持不变，和正交试验结果保持一致。

According to specific character of research object, via much study work, analyzing many cases of non-heat pressure vessel invalid and combining test result in electric power industry .It analyse and summarize the main reason of hydrogen pressure vessel of electric power plant.This essay carry out crazing performance test of hydrogen causing material .

根据研究对象的具体特点，通过大量的调研工作，分析了大量有关非热力压力容器失效的案例，结合电力行业内已有的检验结果，对电站氢气压力容器失效的主要原因进行了分析和总结；进行了氢致材料开裂性能实验。

All the process of this group was recorded by participant observers, non-participant observers, pre-experiment meetings, post-experiment meetings, photos by camera, and members' feedback.

研究资料的来源包括：工作人员的参与观察纪录、非参与观察记录、团体前会议纪录、团体后会议纪录、团体历程摄影、成员回馈等，研究资料幷以质性研究分析法进行分析。

Kinematic and dynamic calculations are carried out, and the features of intake and outtake valve train are got. Especially, the area of fullness ratio of the valve lift curve, cam to tappet contact stress, lubrication coefficient and the features of valve seating are analyzed.

在此基础上分析了配气机构进排气部分的工作特性，着重从气门升程曲线的丰满系数、凸轮与平面挺柱间接触应力，凸轮与平面挺柱间润滑效果以及气门落座特性等方面进行了分析。

Presenting subjects manipulated mental workload with five tests, including Raven's Standard Progressive Matrices and four subtests of Wechsler Intelligence Scale for Chinese-Children revision in 60 to 70 minutes. Reading velocity, mistake rate, index of mental capacity in Number Cancellation Test and test time, the right number of tracking lines in Visual Tracking Test were calculated and compared between the two groups.

以瑞文标准推理测试、韦氏智力量表中部分项目测试60~70min作为脑力作业负荷，负荷前、后分别进行划消试验和视觉追踪测验，统计划消试验的阅读速度、错误率、脑力工作能力指数，统计视觉追踪试验的完成时间及正确数，分析脑力作业负荷对肥胖组和对照组各指标的影响及2组间的差异，分析肥胖青少年注意能力的特点。

Adolescents of the two groups were paired according to age groups, height, schooling level and parental educational level. Average scores of all indices were calculated and compared between the two groups. Mental workload was manipulated by presenting subjects with five tests, including Raven's Standard Progressive Matrices and four subtests of Wechsler Intelligence Scale for Children-Chinese revision in 60 to 70 minutes.

以瑞文标准推理测试、韦氏智力量表中部分项目测试60～70min作为脑力作业负荷，负荷前、后分别进行划消试验和视觉追踪测验，统计划消试验的阅读速度、错误率、脑力工作能力指数(index of mental capacity，IMC)，统计视觉追踪试验的完成时间及正确数，分析脑力作业负荷对肥胖青少年推理能力、智力及注意力等认知功能的影响及两组间的差异，并分析肥胖青少年注意力的特点。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。