虚拟企业图纸数据传输

图纸数据是企业间合作需交换的一种重要的信息。本文分析了虚拟企业环境下企业之间交换图纸数据的要求，提出了一种具体的解决方案，并给出实例。     

聚碳硅烷的分子量分布与可纺性研究

阐述了聚碳烷的合成及其分子量分布，讨论了高低分子含量对聚碳硅烷熔点及可纺性的影响，而且提出了分子量分布的控制标准与方法。     

具有PDEB LB膜的声表面波湿度传感器

介绍一种新型聚炔离子导体湿敏材料－聚对二炔苯的Ｌａｎｇｍｕｉｒ－Ｂｏｌｄｇｅｔｔ成膜原理与制备，淀积有１０层ＰＤＥＢ ＬＢ膜层的声表面波延迟线型湿度传感器的特性。由于ＬＢ成膜技术拉制的膜可以在分子水平上进行定量控制，保证了膜的均匀性和一致性。     

实现多层混合刻蚀薄膜大面积均匀的方法浅探

采用多层光刻工艺结合氩离子铣的混合刻蚀方法，刻蚀高Ｔｃ超导ＹＢａＣｕＯ／ＺｒＯ２（１００）薄膜图形，取得了较好的结果。在进行氩离子镜的工艺步骤中，使用普通氩离子铣设备（离子束斑极不均匀），但采取了一定的措施─－使被刻样品在刻蚀台座上可移动，模糊地实现了薄膜的相对＂大面积＂（直径φ≥２０ｍｍ）均匀刻蚀─－可同时刻蚀２～３片６ｍｍ×１０ｍｍ薄膜，并且被刻蚀部分表面起伏约在１０ｎｍ左右。图形样品的最小线条达２μｍ，其Ｔｃ、Ｊｃ人与刻蚀前薄膜的Ｔｃ、Ｊｃ相当，即：ＴＣ为８５～９０Ｋ，Ｊｃ～１０６Ａ／ｃｍ２（在７７Ｋ下）。     

粘土矿物对低渗透储层性质的影响——以鄂尔多斯盆地三叠系低渗透储层为例

粘土矿物是低渗砂岩储层的主要胶结物，对储层物性及开发过程中储层物性变化趋势有着重要的影响和控制作用。另外，粘土矿物也蕴含着大量沉积环境介质的物理化学信息，认识其自然规律，可以有效地指导预测有利储层，认识和改造油层。以鄂尔多斯盆地砂岩储层中的粘土矿物为研究对象，探讨分析粘土矿物对低渗储层性质的影响，该研究对含油气盆地低渗储层有效开发具有一定的参考价值。     

Microstructure and Mechanical Properties of Heat-treated GeSb_2Te_4 Thin Films

The effect of annealing on microstructure,adhesive and frictional properties of GeSb 2 Te 4 films were experimentally studied.The GeSb 2 Te 4 films were prepared by radio frequency(RF)magnetron sputtering,and annealed at 200℃and 340℃under vacuum circumstance,respectively.The adhesion and friction experiments were mainly conducted with a lateral force microscope(LFM)for the GeSb 2 Te 4 thin films before and after annealing.Their morphology and phase structure were analyzed by using atomic force microscopy(AFM)and X-ray Diffraction(XRD)techniques,and the nanoindention was employed to evaluate their hardness values.Moreover,an electric force microscope(EFM)was used to measure the surface potential. It is found that the deposited GeSb 2 Te 4 thin film undergoes an amorphous-to-fcc and fcc-to-hex structure transition;the adhesion has a weaker dependence on the surface roughness,but a certain correlation with the surface potential of GeSb 2 Te 4 thin films.And the friction behavior of GeSb 2 Te 4 thin films follows their adhesion behavior under a lower applied load.However,such a relation is replaced by the mechanical behavior when the load is relatively higher.Moreover,the GeSb 2 Te 4 thin film annealed at 340℃presents a lubricative property.     

The feature-based posterior crown design in a dental CAD/CAM system

This paper presents a newly developed CAD approach for a quick and accurate design of a dental posterior prosthesis. The approach arises from the basic idea that every human tooth has its own specific features. Based upon the features of the standard posterior tooth, the initial data containing the defined feature points are firstly acquired from the scanned points of the standard tooth. The standard prosthetic profile is thereby formulated using the bicubic Nurbs surface fitting technique. This profile has the two functions of possessing the same features with the patient’s missing posterior tooth, and the adjustability with the feature points and the defined B-spline profile feature curves. For the purpose of the adjustment of the established model, the global and occlusal feature curves are proposed considering the individual patient’s original information. According to these curves, the corresponding standard prosthetic profile is locally adjusted to meet the fit of the global size and occlusal surface. Finally, a close and continuous profile of a posterior crown is generated. Using this design, a posterior prosthesis is successfully manufactured in the computer-aided machining process.     

第三只眼看进品保健品

许多国家大多没有严格意义上的保健品概念，美国等国家将其统称为“功能食品”。我国应用“保健品”一词，旨在将其与药品和食品两大门类区分开来。美国的“保健品”发展速度和规模比较大，同时由于其先进的制造和科研技术，引领着世界功能食品的潮流。随着我国社会的发展，保健品的生产和研发也逐步赶上国际的步伐，而大量的进口保健品也已经进入寻常百姓家。     

新型引爆系统的数据处理研究

文中介绍了新型引爆系统的结构和起爆原理,利用计算机进行了数据处理.结果表明该引爆系统安全并且可靠,能够满足有关弹药总体的各项技术指标要求.该系统对推进钝感弹药引爆技术,特别是高新技术弹药的发展有重要意义.随着信息技术的发展,它将成为最先进的引爆系统.