第三方物流信息系统运输子系统的设计

为了降低第三方物流信息系统运输子系统设计的复杂性,在系统结构设计中,将运输子系统分为业务系统、监控、查询与统计、财务接口与运费调整的审核5个部分;在业务流程设计中,用Petri网对大部分业务逻辑加以描述,以优化运输子系统;在数据库设计中,从单据中识别实体,根据界面绘制数据流图,从E—R图中识别实体之间的关系,将其转化为关系模型,成为数据库中表的基本结构,提出以“族”的概念组织实体集和数据库表,将根据物理数据模型建立的125张表分成了14个族。此结构设计方法简化了第三方物流信息系统运输子系统的结构,提高了工程质量。     

线性与非线性多轴联动加工控制的插补算法及其实现

本文在线性多轴联动插补算法的基础上,推导出非线性空间曲线的插补算法;建立了 判定规则,并介绍了在此基础上使用多微机处理结构具体实现方法,      

跨河大跨度连续梁桥支架现浇施工阶段地基处理技术

跨河大跨度连续梁桥支架现浇施工时,地基处理的方法及质量直接影响到连续梁桥施工过程中的安全及成桥后的线性。由于跨河支架地基处理没有现成的理论和方法可套用,文章通过施工过程的详细介绍,揭示了该类地基处理施工现场管理与过程控制的基本思路和做法,京沪高铁无锡东桥段中跨越张塘河连续梁地基处理方法和成功经验,不失为一种有效借鉴。     

基于防雷接地电阻影响因素分析

接地电阻是判定防雷装置性能优劣的重要技术指标,也是防雷工程中判定整个防雷设施是否合格的重要依据。对接地电阻的影响因素进行了分析研究,提出了改进土壤电阻满足防雷设计要求的方法。     

智能水下机器人的建模和控制策略研究(英文)

To provide a suitable model for AUV simulation and control purposes, a general nonlinear dynamic model including a novel thruster hydrodynamics model was derived. Based on the modeling method, the “AUV-XX” simulation platform was established to carry out fundamental tests on its motion characteristics, stability, and controllability. A motion control strategy consisting of both position and speed control in a horizontal plane was designed for different task assignments of underwater vehicles. Combined control of heave and pitch was adopted to compensate for the reduction of vertical tunnel thrusters when the vehicle is moving at a high speed. An improved S-surface controller based on the capacitor plate model was developed with flexible gain selections made possible by different forms of restricting the error and changing the rate of the error. Simulation results show that the derived general mathematical model together with simulation platform can provide a test bed for fundamental tests of motion control. Additionally, the capacitor plate model S-surface control shows a good performance in guiding the vehicle to achieve the desired position and speed with sufficient accuracy.     

论第三者对责任保险人的代位权

在财产中,保险人在赔付被保险人的损失后有权向对被保险人负有责任的第三者行使代位求偿权则是毫无疑义,为了保护第三者的合法权益,当被保险人投保责任保险后所产生的对第三者的赔偿责任,只要是在承保范围内,第三者可以不受合同相对性原则的约束,完全有权向责任保险人行使代位权,要求责任保险人按保险合同的约定,在其承保责任范围内承担赔偿责任。第三者对责任保险人的代位权依我国合同法的规定属于债的保全范畴,依英国法的规定属于债权转让。而油污责任保险中第三者对责任保险人拥有直接的诉权。第三者行使代位权是有限制的,必须符合我国代位权的要件。为保护第三者的合法权利,建议制订相关的第三者代位诉责任保险人法。     

A new plan and coordination strategy for robot system based on state space

This paper proposes a general plan and coordination strategy for robot system. The state space for robot system is constructed according to the task requirement and system characteristic. Reachable state of the system is figured out by the system’s internal and external constraints. Task plan and coordination are then transformed as trajectory solving problem in the state space, by which the realizable conditions for the given task are discussed. If the task is realizable, the optimal strategy for task execution could be investigated and obtained in state space. Otherwise, it could be transformed to be realizable via adjusting the system configuration and/or task constraint, and the transformation condition could also be determined. This contributes to design, plan, and coordination of the robotic tasks. Experiments of the manipulator path planning and multi-robot formation movement are conducted to show the validity and generalization of the proposed method. Foundation item: the National Natural Science Foundation of China (No. 60675041) and the Program for New Century Excellent Talents in University (No. NCET-06-0398)     

高填方公路路堤支挡新结构计算机仿真研究

由于山区地形的特殊性,经常遇到高填方的路段。双面互锚直立式挡土墙是高填方公路路堤的一种新型的公路结构支挡形式。借助于Msc.Marc对其进行了计算机仿真研究。通过正交试验的手段研究了影响计算结果的诸因素的显著性,在此基础上对现场试验结构进行了仿真研究,二者的结果彼此印证了可信性。     

CAE技术在汽车侧面帘式气囊模块开发中的应用

建立了汽车侧面帘式气囊的有限元模型,利用MADYMO软件进行了气囊折叠和动态充气的模拟.还叙述了利用CAE方法进行帘式气囊几何形状的静态与动态设计及袋体压力集中情况的分析.     

bcl-2基因蛋白在外阴营养不良及外阴癌的表达

利用细胞凋亡抑制基因ｂｃｌ－２单克隆抗体及免疫组化ＬＳＡＢ法,对正常外阴皮肤、慢性外阴营养不良、不典型增生和外阴癌组织进行标记,发现ｂｃｌ－２蛋白在正常外阴皮肤基底层中有弱阳性表达;在增生型营养不良、不典型增生及外阴癌组织中表达率有不同程度增高,与外阴硬化苔癣型和混合型营养不良有显著差异（Ｐ＜０．０５,Ｐ＜０．０５,Ｐ＜０．０１）;而增生型与不典型增生ｂｃｌ－２基因蛋白表达无明显差异（Ｐ＞０．０５）;外阴癌的表达率最高;该基因蛋白表达与外阴癌细胞分化程度有关,与临床分期无关。