摘要：With object oriented design/analysis, a general purpose corrosion data model (GPCDM) and a corrosion data markup language (CDML) are created to meet the increasing demand of multi-source corrosion data integration and sharing. "Cor- rosion data island" is proposed to model the corrosion data of comprehensiveness and self-contained. The island of tree-liked structure contains six first-level child nodes to characterize every important aspect of the corrosion data. Each first-level node holds more child nodes recursively as data containers. The design of data structure inside the island is intended to decrease the learning curve and break the acceptance barrier of GPCDM and CDML. A detailed explanation about the role and meaning of the first-level nodes are presented with examples chosen carefully in order to review the design goals and requirements proposed in the previous paper. Then, CDML tag structure and CDML application programming interface (API) are introduced in logic order. At the end, the roles of GPCDM, CDML and its API in the multi-source corrosion data integration and information sharing are highlighted and projected.

摘要：本文简要回顾了1950-2005年间,铁路工程地质勘察设计系统在铁路基本建设的各个时期所发生的历史事件。

摘要：介绍京津城际铁路整体概况,阐述该线修建意义及建设和运营管理模式,重点分析该线工程与技术设备在车站、线路、路基、桥梁等方面的科技创新成果。

摘要：In this paper,a new hybrid excited doubly salient stator-permanent-magnet motor is proposed,where both permanent magnets and DC field windings are located in the *** theory,the mathematical model and design method of the motor are *** corresponding output power equation and the relationship between the flux control capability and the extended speed range are deduced in *** using an efficient "one-step" three-dimensional(3D) finite element method,the electromagnetic performances are analyzed,in which the leakage flux outside the stator circumference and end-effect are taken into *** on the operation principle of the motor,the control strategy and scheme are developed and implemented *** experimental results and finite element analysis show that the proposed motor not only maintains the advantages of doubly salient permanent magnet motors,but also offers high energy efficiency over a wide speed range,which makes the motor an interesting candidate for electric vehicles.

摘要：随着科技的发展以及竞争的全球化,产品开发越来越重视产品的创意、个性化以及如何缩短产品的开发周期。本文介绍了一种基于虚拟现实和网络化协同的产品设计平台,应用虚拟现实技术建立自然的设计界面,利用专用位置输入装置产生一系列的虚拟切割动作,让网络用户实现协同设计并自由地表达设计思想,同时还可以快速试制出设计的产品。文章最后通过实验展示了本平台的可行性和有效性。

摘要：经过半个世纪的工程实践,铁路系统形成了一支专业设置齐全、技术力量雄厚的工程地质勘察设计队伍。在铁路基本建设的各个时期,出色的完成了新建、扩建和改建铁路的勘察任务。在与大自然的奋斗中,业务水平不断提高、勘察能力不断增强、技术力量不断加强、业绩成就不断突破。50年来,不仅出色的完成了铁路基本建设任务,而且积极拓展业务范围,并取得较好的成绩和声誉。

摘要：The S2 flow path design method of the transonic compressor is used to design the one stage fan in order to replace the original designed blade cascade which has two-stage transonic fan *** the modification design,the camber line is parameterized by a quartic polynomial curve and the thickness distribution of the blade profile is controlled by the double-thrice ***,the inlet flow has been pre-compressed and the location and intensity of the shock wave at supersonic area have been controlled in order to let the new blade profiles have better aerodynamic *** computational results show that the new single stage fan rotor increases the efficiency by two percent at the design condition and the total pressure ratio is slightly higher than that of the original *** the same time,it also meets the mass flow rate and the geometrical size requirements for the modification design.

摘要：The mechanical reliability and optimization theory on the method ofreliability-optimization design for the new roller orientation clutch is provided. The result ofreliability-optimization design is compared with the result of the conventional design method.

摘要：The design features of 8 Mt/a atmospheric and vacuum distillation unit (Ⅲ) in Zhenhai Refiningand Chemical Company are presented and various process schemes are compared. Production practice hasproved that the main process design is advanced and reasonable and the process parameters basicallyreached design requirements.

摘要：The preliminary design and parametric study of 1400 m partially earth-anchored cable-stayed bridge are described. Static per-formance of this new type of bridge is discussed. Compared with fully self-anchored cable-stayed bridge, its advantages in fin-ished state are summarized. Based on numerical calculation, effects of several structural parameters on static performance are presented.