Universal Rendering Sequences for Transparent Vertex Caching of Progressive Meshes

We present methods to generate rendering sequences for triangle meshes which preserve mesh locality as much as possible. This is useful for maximizing vertex reuse when rendering the mesh using a FIFO vertex buffer, such as those available in modern 3D graphics hardware. The sequences are universal in the sense that they perform well for all sizes of vertex buffers, and generalize to progressive meshes. This has been verified experimentally.     

土工带加筋地基处理施工技术

结合中铁十二局2号小区7号楼工程加筋地基处理的施工，介绍了加筋地基处理的材料要求，设计特点，施工工艺及施工要点，得出该施工技术简单易操作，质量易保证，造价低廉，效果良好。     

防静电橡胶条配方的研制

通过采用不同品种、不同用量的炭黑及不同品种的软化剂对导电橡胶制品导电性能的影响试验，确立了防静电橡胶条的较佳生产配方。     

退火条件对FeCuNbSiB非晶带材应力阻抗效应的影响

研究了退火条件对非晶FeCuNbSiB带材应力阻抗性能的影响。结果表明,当退火温度为300℃时,FeCuNbSiB非晶带材开始慢慢晶化,当温度上升到500℃时,带材内部结构已由非晶态完全转变成晶态。当退火温度低于300℃时,退火能够消除部分应力,使阻抗变化的灵敏度提高;但当退火温度高于300℃时,随着退火温度的升高,应力阻抗效应减弱。退火时间超过1h,延长退火时间,对带材的应力阻抗性能影响不大。非晶FeCuNbSiB带材经100℃×2h的退火处理后,应力为2.7MPa时,应力阻抗变化可达26%。     

The Holy Alignment: Geodesic and Astronomical Fundamentals for Calculating the Adjustment of Medieval Naves

It is commonly believed that the longitudinal axes of churches extend exactly in an east-west direction. However, thorough investigations have shown that this is not always correct; rather, both southern and northern deviations of up to about 25° can occur. The angular deviation between the church axis and true east is called the Holy Alignment. This present study presents the possibility that the nave is oriented towards the direction of the sun-rising point on the name day of the patron saint of the church. If several saints share the patronage, the Holy Alignment equals the algebraic sum of the angular distances for each saint. The orientation of a nave can be analyzed by means of common mathematical relations used in geodesy, astronomy and gnomonics. In order to perform such an analysis, it is necessary to know the history of the patronage of the church; the Gauss-Krüger coordinates of the ground plan; and characteristic astronomical quantities at the time the church was built. A calculated example with the saints Andrew, James and Philip for the year 980 illustrates the analysis. An appendix deals with the influence of atmospheric refraction on the apparent altitude of the sun near the horizon.     

Triangle Strip Compression

In this paper we introduce a simple and efficient scheme for encoding the connectivity and the stripification of a triangle mesh. Since generating a good set of triangle strips is a hard problem, it is desirable to do this just once and store the computed strips with the triangle mesh. However, no previously reported mesh encoding scheme is designed to include triangle strip information into the compressed representation. Our algorithm encodes the stripification and the connectivity in an interwoven fashion, that exploits the correlation existing between the two.     

汽车防护条塑料件的涂装工艺及设计

介绍了汽车防护条的预处理工艺、涂装工艺及设计原则,列举了防护条涂装工艺的应用实例。     

旧料生产锡磷青铜带材急冷破鳞开裂原因及其探讨

阐述了在实际生产过程中，因大量使用镀白旧料生产锡磷青铜带材，在急冷破鳞时易出现开裂现象及其产生的原因。根据其特有的生产工艺及特点提出了相应的解决方法。     

关于双缝干涉条纹在几种不同情况下的讨论

本文以杨氏双缝干涉实验为基础，讨论了在实验装置的几种变化情况下干涉条纹的变化。     

橡塑磁条在永磁音像微特电机中的应用

本文简述了橡塑磁条的制造工艺及在永磁音像电机规模生产中的应用，与铁氧体烧结磁环进行比较，阐述了橡塑磁条在音像微特电机中使用的优势。