设计出

The mechanical property testing shows that the seamless PLLA tubes perform excellent radial strength,which indicates that the mechanical properties of biodegradable stents made of these tubes was supposed to be excellent.PLLA and its composites were first used in preparing seamless tubes as antecedency of laser-cut biodegradable coronary stents in china.Finite element analyses of the biodegradable coronary stent model indicate the explorative design basically meets the requirement of reasonable and applicable stents.There is not such kind of research yet in domestic.Optimum laser-cuttting parameters of CO2 laser was cauculated based on experiential formula,within it,biodegradable coronary stents,especially those with complex structure would be manufacutured from seamless tubes quickly by laser microprocessing with high consistency to the design model.The processing efficiency of the CO2 laser demonstrated in experiential formula by us will play an important guiding role in manufacturing biodegradable stents by laser-processing.Our stents that ascribed to laser-cutted,slotted tube stent are proved to be biodegradable, self-expandable and good biocompatible,basically reach the international level on the aspest of manufacturing procedures and design.

研究结果表明：壳聚糖改性材料综合性能优于纯PLLA，更适合于作为可降解冠脉支架的原材料；自主设计的探索性自膨胀管状闭环型可降解冠脉支架的性能符合冠脉设计要求，设计、验证生物可降解冠脉支架模型的研究在国内还未见报道；制备的改性PLLA无缝管的力学性能优越，可通过激光切割获得冠脉支架，这是国内首次采用聚乳酸材料来制备通过激光加工出可降解冠脉支架的无缝管；二氧化碳激光器加工精度能达到加工要求，加工出来的血管支架名义设计与实测值误差小，实现了冠脉支架、尤其是带有复杂外观设计冠脉支架的快速化、规范化加工，对二氧化碳激光器加工聚乳酸材料的效果研究在国内外属于首创，获得的经验公式对日后的深入研究有重要的指导意义；制备的支架为激光切割管状闭环型冠脉支架，支架外观设计、支架加工手段、支架的性能都基本接近国际水平，支架样品符合设计的理念，可以实现自膨胀功能。

The conventional design method is analyzed, then the total frame of hot runner design based on knowledge is put forward, and knowledge of hot runner design is organized, and the knowledge base of hot runner is built. At last hot runner structural design is finished in detail.

第三章，分析了传统的热流道结构设计方法，给出了基于知识的热流道结构设计的总体框架，利用知识单元进行组织热流道设计知识，建立相应的热流道设计知识库，分析基于知识的推理方法和热流道设计任务规划，并在热流道设计知识库基础上完成结构设计。

The system consists of four parts such as Data Management of Product Model,Finite Element Analysis, Optimal Design and Graphics Drawing; and its main work is searching for an optimal scheme of chief axis with Sequential Quadratic Programming Method by finite element static and dynamic characteristical analysis of the axis and saving the results of design as documents or outputing them.

系统出产品模型数据管理、有限元分析、优化设计和图形绘制四部分组成。通过对车床主轴二维垂直剖面力学模型的有限元静、动态特性分析，采用序列二次规划的优化设计方法寻求主轴设计的优化方案，并将优化设计结果形成文档或输出。提出产品设计模型的概念，通过它可自动生成有限元分析模型、优化设计模型和图形模型三个子模型，将有限元分析、优化设计、图形绘制三部分结合在一起。

The text researches the analysis and sums up the plans of the service establishment for the aged. Through the extraventricular activity circumstance aspect, the text sums up the plans of activity space, walking space view and admire space.

通过调研总结出社区内老年服务设施如何配置才能给老年人提供一个适宜的"在宅养老"环境，并总结出这些服务设施的规划设计方法；在老年人的室外活动环境方面，通过对和老年人关系密切的社区中心活动场地和宅间活动场地的调查分析，总结出老年人的活动空间、坐息空间、步行空间、观赏空间、室外活动场地的规划设计方法。

The innovations of the thesis have been shown in several aspects as follows: put forward the transfer mechanism model of the landslide thrust on basis of the soil arching theory, and according to the model the formula about how to compute the thrust acting on the pile and the maximum pile spacing have been deduced. Set up the displacement model about the interaction of the pile and landslide, and their relatively displacement can be taken into consideration when computing the pile, thus the limitation of supposing the distribution of landslide thrust has been avoided, at the same time, the applied condition of the model and the computing procedure have been given. Bring forward the improved computing method of the anti-sliding pile with prestressed cable, which has been verified rational and applicable, making the method more perfectly in theory. Through the study on the mechanical model of the foundation beam with prestressed cable, put up the limit design idea of the structure, and the realization procedure of the idea has been given and programmed with the finite element, which leads to a new thinking for the safe and rational design of the foundation beam with prestressed anchor cable.

本论文的创新之处在于，用土拱理论建立了滑坡推力在抗滑桩与坡体之间的传递机制模型，并由此得到了作用于抗滑桩上的滑坡推力计算式以及最大桩间距的确定条件式；建立了抗滑桩与滑坡体相互作用的位移模型，该模型能考虑桩与坡体相互作用过程中二者相对位移的影响，避免了人为假设滑坡推力分布形式的缺陷，给出了其适用条件和计算过程；提出了预应力锚索抗滑桩的改进计算方法，使得预应力锚索抗滑桩的计算理论更加完善，通过实例验证了该方法的适用性和合理性；在预应力锚索地梁力学计算模型研究的基础上，提出了预应力锚索地梁极限状态设计的新思想，给出了该设计方法的实现途径并编制了有限元计算程序，为锚索地梁合理而安全的设计提供了一种新思路。

In the fast thesis comprehensive investigate the essential knowledge and technical of conceiving a serial agenting software .then the design program of software is introduced ,it include design brainchild,system architecture and evaluation further more give the program module and the map flowchart by the way of chart,and give the realization process of proxy server ,serial communication and the browser.

论文首先全面系统的研究了构建一个串口代理软件所必备的各种知识和技术手段，接着介绍了软件的设计方案包括设计思想、系统构架，以及方案的论证而且以图表的方式例出了程序的模块图和流程图，然后给出了代理服务器、串口通信、以及浏览器的实现过程，完成了软件的设计。

The design of data receiving and data processing system for land station including the guide, scheme, specific hardware and software and experiment result is discussed in this paper.

本文介绍了关于水下流浪潮综合测量系统中岸站数据接收处理部分的设计总体方案，具体给出了设计思想、设计方案、以及硬件电路和软件程序的具体实现，并给出了实验结果分析。

In this design process, through produce to carry out the material balance and the energy graduated, to find out the mainly production equipment and the storage tank's size, to select other equipments' standard model and write out the complete production technics argument, at the same time, this design will show you the equipment drawing and layout chart, in this way to complete the requirements of the subject.

设计过程中，通过生产量进行物料和能量的衡算，确定主要的生产设备和贮水罐规格、选择其他设备的标准型号和写出完整的工艺论证并画出所设计的设备图、布局图，从而完成课题要求的工艺设计。关键词：水质标准，注射用水，蒸馏，多效蒸馏水机，生产工艺

The sightline control strategy for bad measure precision is developed, and the control methods for vertical direction, approach direction and station keeping are presented.(2)The safe approach velocities are investigated for cuboid, sphere and cone keep out zone.(3)The design method for optimal trajectory under safety constraint is developed. The cone and cuboid keep out zone can be described using line constraint, and then optimal trajectory design can be translated to line programming problem under line constraint.(4) The design strategy of collision avoidance maneuver is discussed, and the collision avoidance scheme is analyzed for V-bar and R-bar approach.The control and trajectory safety in departure phase are investigated.

1提出了测量误差较大时平移靠拢段的视线控制策略，给出了横向、纵向和悬停的控制方法；(2)针对长方体禁区、球形禁区和锥形禁区三种禁区形式，研究了V-bar逼近和任意方向逼近的纵向安全速度计算问题；(3)提出了安全约束下的最优轨迹设计方法，将冲量和有限推力作用下的最优轨迹设计问题转化为线性规划问题，并给出了将锥形和方形安全区域约束转化为标准线性约束的公式；(4)探讨了紧急避撞机动的设计策略，分析了V-bar和R-bar接近的紧急避撞机动方案。

This research sets the target of zinc die-casting design, the craft parameters parts crafts analysis, the choice of die-casting machines and platoon Yak system design, the introduction of institutions, national aircraft design, shape parts design, structural components design, die-casting mould technical requirements and material composition, a total of nine chapters.

本课题研究的对象是锌套的压铸模设计，包括工艺参数的选择，零件的工艺分析，压铸机的选用及排溢系统的设计，推出机构，模架的设计，成形零件的设计，结构零件的设计，压铸模的技术要求及选材等，本课题的设计论述出了各部分的设计方法与原则以及计算设计过程和必要的强度校核。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。