科技期刊表格通用无线表和横线表的研究

提出科技期刊的表格,通用无线表和横线表的表式进行表达的理论和实践.论述了通用表表式的特点和要求,表头单、复式项目的设计,横视型和竖视型项目头的审改,不同栏数正、反线的合理应用,表身的恰当用线和疏密排.介绍了通用表的合并、转栏、分段、跨页的正确编排方法,以及特殊用表的变通方案.可供撰文、审校、编辑、排版工作借鉴.     

基于HLA和GIS的作战想定整合与态势演播

HLA是近几年发展起来的一种体系结构标准，介绍了将HLA/RTI和网络GIS的集成研究成果及其用于想定整合与态势演播取得的有益实验结果。     

基于网络环境下的高校图书馆用户教育

通过对当前我国高校图书馆用户教育存在问题的分析，找出其中的原因，并提出了网络环境下的高校图书馆如何发展新型的用户教育体系．     

涉及到两个高维单形的分式不等式

Janic R.R是一个关于三角形的边长和旁切园半径的分式不等式，文中对两个高维单形给出可类似的分式不等式的正向形式和逆向形式。     

Synthesis of self‐photosensitizing polyesters containing donor–acceptor norbornadiene moieties and benzophenone groups and their photochemical reactions

The ring‐opening copolymerization of a glycidyl ester derivative having a benzophenone group and the donor–acceptor norbornadiene (D‐A NBD) dicarboxylic acid, 5‐(4‐methoxyphenyl)‐1,4,6,7,7‐pentamethyl‐2,5‐norbornadiene‐2,3‐dicarboxylic acid, monoglycidyl ester derivatives with D‐A NBD dicarboxylic anhydride using tetraphenylphosphonium bromide as a catalyst proceeded smoothly to give novel self‐photosensitizing NBD polymers in good yields. The molecular weight of these polyesters was about 4,000, and lower than that of analogous NBD polymers having no benzophenone group. All the synthesized NBD polymers isomerized smoothly to the corresponding quadricyclane (QC) polymers upon UV irradiation in tetrahydrofuran (THF) solution and in the film state. The rate of the photoisomerization of the D‐A NBD moieties in these polymers was higher than that of the D‐A NBD moieties in the polymer having no photosensitizing group. Furthermore, the rate of the photoisomerization of the D‐A NBD moieties in these polymers was also higher than that of the NBD polymer with low molecular weight photosensitizer in dilute solution. The photo‐irradiated polymers having QC moieties released thermal energies of 146–180 J/g. The D‐A NBD moieties contained in these NBD polymers possessed fair to good fatigue resistance. The degradation of the NBD moieties in these polymers was 15–30% after 50 repeated cycles of interconversion. © 2007 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 45: 2978–2988, 2007     

MgO films grown on yttria-stabilized zirconia by molecular beam epitaxy

MgO films were grown on (0 0 1) yttria-stabilized zirconia (YSZ) substrates by molecular beam epitaxy (MBE). The crystalline structures of these films were investigated using X-ray diffraction and transmission electron microscopy. Growth temperature was varied from 350 to 550 °C, with crystalline quality being improved at higher temperatures. The MgO films had a domain structure: (1 1 1)[1 1 2¯]_MgO(0 0 1)[1 0 0]_YSZ with four twin variants related by a 90° in-plane rotation about the [1 1 1]_MgO axis. The observed epitaxial orientation was compared to previous reports of films grown by pulsed laser deposition and sputtering and explained as resulting in the lowest interface energy.     

论餐饮服务质量的教学

当今饭店业的竞争日益激烈,提供顾客满意的服务是竞争的焦点和核心.服务质量是饭店的生命线,员工的素质是饭店服务质量的关键.     

永不消失的白螺号——访藏学大师东噶·洛桑赤列先生

东噶·洛桑赤列教授是享誉国际国内的藏学家，国家级专家，曾担任中国藏学研究中心副总干事和西藏社会科学院名誉院长等行政职务，先后任中央民族大学藏学院、西藏大学文学院教授。在他长期的坎坷人生经历中，由一名农奴成为著名的藏传佛教活佛，由一名俄让巴密宗师转变为接受马克思主义的教授，成为著述等身的大师级学者。先后经历过新旧社会的变革，新旧文化的熏陶，他的学术思想在无数磨砺中闪闪发光，他的天资在特殊的文化环境中释放出无穷的能量，他的人品、治学精神，在学术领域永无止境的追求探索的精神和他留下的20多部学术著作，已经成为中华民族一笔宝贵的文化遗产。文章根据1984年冬至1997年2月之阍陆续采访的记录（手稿），主要对东噶·洛桑赤列先生的人生历程、研究成果、学术观点、治学精神等方面的内容进行了摘编。     

浅析体育教学与运动训练的异同和联系

体育教学与运动训练作为一个匹配成对的概念,既有区别又有联系。明确区别,有利于各自梳理、完善,认清联系,方可整体协调关于两者的异同,人们口头谈论的不少,落笔行文不多,故此认识总是模模糊糊,鲜有深化。     

A new cytotoxic limonoid from Odontadenia macrantha from the Suriname rainforest

Bioassay‐guided fractionation of the methanol extract of Odontadenia macrantha afforded a new limonoid, odontadenin A (1) and two known triterpenoids, lupeol (2) and α‐amyrin (3). The structure of 1 was established on the basis of 1D and 2D NMR and high‐resolution fast atom bombardment mass spectrometric data. The new compound was found to possess moderate cytotoxicity against A2780, the ovarian cancer cell line. Copyright © 2003 John Wiley & Sons, Ltd.