Investigation on Bending and Creasing of Woven Fabrics under Low Curvature

Under the assumption of semi - circular form for a fabric bend, creasing of fabric strips and compression of fabric loops are analyzed by neglecting the structural complexity of the fabric. The relationship between the creasing force and deformation are deduced using an energy method and solutions are given for a linearly elastic material with constant internal frictional constraint. The agreements between the theoretical predictions and experimental results are very satisfactory.     

ANISOTROPIC BIQUADRATIC ELEMENT WITH SUPERCLOSE RESULT

The main aim of this paper is to study the convergence of biquadratic finite element forthe second order problem on anisotropic meshes.By using some novel approaches and techniques,theoptimal error estimates are obtained.At the same time,the anisotropic superclose results are alsoachieved.Furthermore,the numerical results are given to demonstrate our theoretical analysis.     

河北省师专物理化学标准化考试的实施

本文综述了河北省师专开展物理化学标准化考试和建立标准化试题库的工作，并对测试的分析统计结果进行了讨论．实践表明标准化考试对促进教学和培养人才起了重要作用．     

电子注入对CdSe探测器性能的影响

研究了一种制作CdSe室温核辐射探测器的新工艺，并通过对CdSe室温核辐射探测器MIS接触电极电子注入机理的研究发现，CdSe探测器形成MIS接触电极可以降低表面漏电流，减少探测器噪声，提高探测器能量分辨率。制备出的CdSe室温核辐射探测器对^241Am 59.5keV和^109Cd 87KeV γ射线的能量分辨率分别为9．6％和7．5％。     

DETPMPO与铜（Ⅱ）反应的分光光度法研究

ＤＥＴＰＭＰＯ与铜（Ⅱ）反应的分光光度法研究史雪岩，陈广仁，高锦章，康敬万（化学系）（学报编辑部）（化学系）第一作者简介史雪岩，女，２５岁，１９９３年６月毕业于西北师范大学化学系，获硕士学位，现为甘肃政法学院助教。中图分类号Ｏ６５７．３２，Ｏ６２７．...     

硬材原木不对称下锯图最佳开锯面位置预测

本研究表明，对仅有一块锯材比其余板厚小的不对称不锯图，应用对中法来估计ＢＯＦ位置，是个可行的选择。     

基于规范知识的桥梁智能CAD系统

桥梁智能CAD是计算机技术与桥梁设计知识高度综合的结果。规范知识的表达和推理是CAD系统的一个重要部分。在桥梁CAD系统中规范知识表达和应用将直接影响知识存储，推理机制和用户的接口形式。     

湿气迁移方程的古典解的存在性

本文采用算子半群的方法,对湿气迁移方程的系统在较弱的假设条件下,得出了此方程古典解的存在唯一性。     

Development of medical scintillator

This review presents the scintillators requirements for the medical imaging modalities. The history and the development in recent years of the medical scintillators (mainly for GSO:Ce, LSO:Ce, LuAP:Ce) are expatiated in detail.