细推物理须行乐——记世界物理年4位中科院院士到云南大学讲学访问

为纪念世界物理年,受云南大学邀请,2005年3月21日～30日,中国科学院郝柏林、孙义燧、李家明、葛墨林4位院士对云南大学进行了访问.21日4位院士先与云南大学非线性复杂系统中心的师生们进行了座谈,随后郝柏林院士和李家明院士在云南大学科学馆分别做了“Finding Genesin the Rice Genome”和“基础研究的乐趣”两场报告.郝柏林院士还于29日下午做了“数字文明:物理学和计算机”的报告.院士们的报告精彩生动,引人入胜,不时赢得台下热烈的掌声.报告结束后大家争相提问,院士们耐心细致地分别作了回答.郝柏林院士和李家明院士等大师们渊博的知识严谨的治学作风,谦虚的品格给在场的老师和同学们留下了深刻的印象.       

共享媒介型ATM 交换网络的实现

介绍了ATM交换网络的发展及其工作原理，提出了共享媒介型ATM交换网络的设计方案，完成了该设计方案的硬件设计和软件编程。最后，对实际电路进行了测试，得到了满意的结果。该电路对ATM技术实用化具有重要意义。     

吸收对对称性一维三元光子晶体能带的影响

利用复折射率及传输矩阵理论,研究了光子晶体的吸收对对称性一维三元光子晶体能带及透射峰的影响,研究表明:在反射波中,禁带的反射率随消光系数的增加而迅速降低,当k增加到0.005时,禁带边缘模糊,不存在明显的禁带;在透射波中,随着消光系数的增大,禁带边缘逐渐模糊,当k增加为0.003时,透射率降为0.35;光子晶体的消光系数对禁带内透射峰的透射率有着明显的影响,当k为0.001时,透射率下降到0.15,随着消光系数的增加,透射峰的半峰全宽随之增加,但对透射峰的中心波长没有影响.     

Measurement of Employees Subjective Well-Being as an Aim of Social Responsibility

Social responsibility (SR) includes well-being of all. Improving of SR depends also on measurement of well-being. In organizations it requires a hierarchy/network of requisitely holistic factors and indicators. We regarded several definitions of subjective well-being that take into account multiple dimensions and selected factors to be structured in the multi-criteria model: positive affect, negative affect, and life satisfaction. The article presents results of empirical research of subjective well-being in organizations in Slovenia. The factor analysis and theoretical foundations of the characteristics of subjective well-being factors, determined the importance of the criteria—multiple dimensions of subjective well-being. Data about positive and negative affection were obtained with the ‘Positive Affect Negative Affect Scale’; data about life satisfaction were obtained through the ‘Satisfaction with Life Scale’; thus the local values of alternatives—types of organizations in Slovenia—were measured by using value functions. The level of well-being—the aggregate value of well-being measure was assessed with multi-criteria decision-making methods. One can thus benchmark the well-being performance of organizations, determine the key success and failure factors and benefit from good examples. Results offer information for the interventions to increase the subjective well-being in organizations and thus to attain more SR in organization-internal relations.     

Regional distribution of adenine nucleotides,glycogen, glucose and lactate in the adult rat brain

Résumé Le cervelet contient des quantités plus grandes d'ATP, d'ADP et de nucléotides totaux que le lobe frontal du cerveau ou la moelle cervicale. Ces différences ne sont pas trouvées avec l'AMP. Le contenu en glycogène, en glucose et en lactate est plus grand dans la moelle cervicale que dans le cervelet et dans le lobe frontal.

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We wish to thank Dr.H. Rehkämper from Boehringer Mannheim GmbH, who kindly supplied us with all the enzymes, substrates and cofactors.     

Diabetogenic action of alloxan-like derivatives of uric acid

Summary Two new potent diabetogenic substances 4,5-dihydro-4,5-dihydroxyuric acid (1) and 5-hydroxy-pseudouric acid (2) have been found.     

陶瓷超低温釉纳米助熔粘接剂的研究 3

在陶瓷超低温釉纳米助熔粘接剂配方研究的基础上研究了粘接剂操作性能,釉浆流动性、釉重随釉浆含水量及粘接剂用量的变化关系;研究了制得成品瓷的铅镉溶出性能.采用透射电子显微镜、X射线衍射物相分析,氮气吸附对纳米助熔剂的主要成分纳米氧化硅进行了表征,结果表明:纳米氧化硅为无定性粉体,所提供的国产"中国红"低温釉助熔粘接剂在用量为13.04%时水含量可控范围可为50.2%到51.8%,该控制范围比英国庄信万丰的控制范围更宽,在此范围可实现单个郎酒瓶(500 g容积)釉重在4.25～5.00 g之间,所配制的釉浆具有较好的流动性与触变性;烧制出的酒瓶铅镉溶出量符合国家标准.     

Understanding Scientific Study via Process Modeling

This paper argues that scientific studies distinguish themselves from other studies by a combination of their processes, their (knowledge) elements and the roles of these elements. This is supported by constructing a process model. An illustrative example based on Newtonian mechanics shows how scientific knowledge is structured according to the process model. To distinguish scientific studies from research and scientific research, two additional process models are built for such processes. We apply these process models: (1) to argue that scientific progress should emphasize both the process of change and the content of change; (2) to chart the major stages of scientific study development; and (3) to define “science”.     

嵌段聚醚酯化物的结构分析

本文对合成的嵌段聚醚酯化物的分子结构做了红外、高压液相色谱和~(13)C核磁共振分析,得出其构象和各种原子连接的方式,这些特征图谱为研究和生产此类型表面活性剂提供了可靠的检测依据。     

广义混合变分不等式解的存在性与迭代算法

研究了一类广义混合变分不等式;利用η-次微分和η-近似映象这两个概念讨论了这种广义混合变分不等式解的存在性;并结合分裂技巧和自适应迭代技巧提出了一个求解这种广义混合变分不等式的显式迭代算法;最后证明了该算法在适当的条件下收敛.