工作分析

311 Is the first of a three-term laboratory subject sequence for chemistry majors. Experimental work emphasizes development of fundamental laboratory skills and techniques: volumetric and colorimetric analysis; nuclear magnetic resonance; preparation, purification, and characterization of chemical substances; and data analysis.

5.311课程是主修化学的学生们三个学期的实验课程中的第一门，也是基础的一门，实验室里的工作十分强调基础实验技能与技术的培养：容积计量分析与色度分析；核磁共振；物质制备；物质提纯；物质的化学性质；数据分析。

Five chapters were included in this dissertation: in the first chapter, the background and the appliable area of this study was described; In the second chapter, Aldo Rossi" urban architecture theory was discussed in detail ,focussing on two aspects of his rational-Typology and Analogical City; The third chapter provided a summarization of Aldo Rossi" architectural practice; the fourth chapter shows the practical significance for us through analysing his unique design technique; the final chapter was conclusions and expectations of Aldo Rossis urban architecture theory.

论文共分为五章，第一章绪论中提出了研究的背景、方法及适用的范围；第二章详细阐述了阿尔多·罗西的城市建筑理论，从理性主义类型学和类似性城市这两方面进行深入分析；第三章分析总结了罗西的建筑实践；在第四章通过对罗西创作手法的分析总结出罗西的理论对我们现实工作的积极指导意义；最后是全文结论及展望。

This text expatiated the control of the system requests, analyzing the work principle of the system with work process, gave each parts of hardwares design process and its related electric circuits, software design process, control the calculate way realizes flow chart, emphasized to explain the calculate way of PID in the single a work for on boardly realizing method, at the same time expatiating system characteristics, experiment proof this is a kind of economic practical forerunner control technique.

本文阐述了系统的控制要求，分析了系统的工作原理和工作过程，给出了各部分硬件设计过程及其相关电路，软件设计过程，控制算法实现流程图，着重说明了PID算法在单片机上的实现方法，同时阐述了系统的工作特点，实验证明这是一种经济实用的先进控制技术。

This paper using the Structure life cycle law, Analysis the business processes of Lang Chaco Logistics Company and make a special effort to investigate and study the customer management, the order form management, the warehousing management and the transportation management, also has emphatically carried on the detailed analysis and the design to these sub-systems, besides, each work stage achievement with the exhaustive descriptions and the standardized graph, the integrity, accurate carried on the description, and finally has been providing the corresponding design proposal, which has provided some instructions for the next step systematic development construction.

论文采用结构化系统分析方法对浪潮的物流业务流程进行了有效的分析，着重对其关键业务客户管理、订单管理、仓储管理和运输管理进行了详细的分析与设计，并将每一工作阶段的成果用详尽的文字和标准化的图形、图表，完整、准确的进行描述，为下一步系统的开发建设提供了一些指导。

Based on the stress analysis to spired axis mechanism,in the aspect of sliding part which smoothes through alveolus intersection, theresearch of parameters optimization, about the middle alveolus of spired axis andthe dimension of sliding part, has been studied. To the problem that the reverseportion at the both sides of spired axis lashed fiercely and fraies quickly, thearticle finely analyses the best curve of alveolus when adding cushiony spring atthe both sides.

在对螺旋轴机构进行受力分析的基础上，从滑块顺利通过齿槽交叉点的要求方面，对螺旋轴中间段齿槽和滑块的尺寸进行了参数优化分析；针对螺旋轴两端曲线齿槽反向段在高速工作时冲击大、磨损快的问题；从减少滑块在齿槽反向段运动的冲击方面，比较分析了圆弧、抛物线、三角函数等曲线作为螺旋轴齿槽反向段曲线的加速度，提出了较优的(来源：ABCab论bf文网www.abclunwen.com)反向段曲线。

Through indoor tests and field tests this paper has researched the geogrid' s characteristics of application in highway engineering, such as characteristic of intension, creep, endure, damnify in construction etc.. Based on these researches this paper has also researched the working characteristics of contact face between geogrid and soil and the method of geogrid-reinforced slope analysis. Mechanism of geogrid-reinforced slope has been analyzed. In the end , techniques of geogrid-reinforced embankment' s construction has been researched through substantiality of engineering.

文章通过室内、外试验，对土工格栅的强度特性、蠕变特性、耐久性能及抗施工损伤性能等工程应用特性进行了研究；在此基础上，结合室内试验和理论分析对土工格栅与土的界面工作特性和加筋边坡的稳定性分析方法进行了研究，对土工格栅加筋边坡机理进行了分析；最后结合实体工程，对土工格栅加筋陡边坡的施工工艺进行了系统研究。

In this paper, taking one 1900t/h supercritical pressure once—through boiler installed in East boiler company as subject investigated, analyzing the structure and characteristic of unit, from the mechanism of units, based on the law of quality conservation, energy conservation and momentum conservation, having Lagrange fluid particle tracing idea in hydrodynamics field application in analyzing of unit operational characteristic, author build up the nonlinear distributed parameter general dynamic mathematical model of single-phase heating surface or diphase heating surface in the steam-water system for supercritical pressure once—through boiler, which is suitable numerical calculation and simulation for large scale disturbance and full working conditions change, and enough materializing distributed characteristic of thermodynamic parameter in process and time lag characteristic of energy transportation in tache. The transient responses curve of the system main variables under several disturbance are computed by Computer Simulation for the model, and theoretical analysis shows that the simulation results are reasonable.

本文以东方锅炉集团公司的一台1900 t /h超临界压力直流锅炉为研究对象，在分析机组结构和特性的基础上，从机组的工作机理出发，以质量、能量、动量守恒定律为依据，将流体力学领域中的Lagrange流体质点追踪思想用于机组运行特性的分析上，建立了适用于超临界压力直流锅炉汽水系统单相、双相受热面的非线性分布参数通用动态数学模型，该模型适合于大扰动全工况变化的数值仿真计算，充分体现了过程热力参数的分布特性和环节中能量输送过程的时滞特性，并对模型通过计算机仿真得出各种扰动下系统主要变量的响应曲线，从理论上分析了仿真结果的合理性。

In this paper, magnetorheological fluids and it's rheological behavior were introduced. And the principle of the disc-shaped magnetorheological fan clutch was investigated theoretically. The Bingham model was used to characterize the constitutive behavior of MR fluids subject to an external magnetic field. Based on Bingham model the expressions of the torque and the output rotational speed within the clutch is derived to provide the theoretical foundation in the discal design of the clutch. Then the calculations of the radius of the disc, the thickness and volume of MR fluids within the MRF clutch are yielded. Finally, the sketch of the clutch was designed.

文中对磁流变液的材料及流变特性进行了介绍，分析了圆盘式磁流变液汽车风扇离合器的工作原理，基于Bingham模型建立离合器的力矩模型，结果表明离合器传递的力矩随外加磁场的变化迅速变化，力矩的大小可以通过调节磁场强度的大小来控制，进一步推导了离合工作半径，工作间隙厚度等设计计算公式，最后完成了离合器的原型设计。

This thesis investigates the profile extraction and shape optimization on the result of topology optimization of planar compliant mechanisms. The main context includes the following work:(1) summarizing and analyzing the recent research status, some harvest and unsolved problems;(2) analyzing the conceptual design of planar path-generating compliant mechanisms and its mathematical model and tools;(3) Modifying the method of density contour as the method of profile extraction, and developing a method to optimize the density function in the profile extraction according to the requirement of the design of compliant mechanism;(4) developing a method to abstract the compliant mechanism into a form of links and joints by using the principle of connectivity on topology;(5) developing a method of shape optimization of planar path-generating compliant mechanisms, by representing the profile of the abstracted compliant mechanism as simple curves such as straight lines and arcs, establishing the models of the size optimization of the parameters of these curves, so that the compliant mechanism has a machinable shape;(6) At last, proving the feasibleness and effectiveness of the design method by making simulation design and validating it in FEA software.

主要工作包括：(1)分析了柔顺机构拓扑优化和形状优化的研究现状，分析了目前柔顺机构的研究重点、主要成果和尚未解决的问题；(2)分析了基于SIMP的柔顺机构概念设计方法及其相关工具和模型；(3)针对柔顺机构轮廓提取的特殊要求，提出了密度等值线法的改进方案，对密度函数插值点密度值进行优化，提出优化模型和选择优化算法；(4)根据轨迹输出平面全柔顺机构自身的形状特点，提出了轨迹输出平面全柔顺机构的抽象方法，即应用拓扑学上的连通性原理将柔顺机构抽象成杆件和结点形式，并对相应的数学原理进行了证明；(5)提出了平面全柔顺机构的形状还原和尺寸优化方法，对抽象的柔顺机构进行还原，将其轮廓还原成简单曲线的连接，从而建立尺寸优化模型，对机构进行尺寸优化设计，在得到可加工的机构轮廓的同时又能对关键部位进行特别处理；(6)进行了柔顺机构的数值仿真设计，并将所得设计结果导入商用有限元软件中进行仿真实验，证明了设计方法的可行性和有效性。

The main content of this dissertation is as follows:(1) Based on the rational analysis of production set and production function, the author analyses and summarizes the non-parametric method of studying the production frontier-Data Envelopment Analysis, and points out its finity.

本文的主要工作是：(1)本文首先在合理分析生产集与生产函数的理论的基础上，全面分析总结了研究生产前沿的非参数方法——数据包络分析方法，指出了它的局限性。

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。