大跨度空间网格结构风荷载数值模拟方法

根据谐波叠加法和线性滤波法的基本原理,采用MATLAB语言编写程序分别实现了常规谐波叠加法及其改进的快速傅里叶变换算法和插值算法以及线性滤波法的自回归法对大跨度空间网格结构风速时程的数值模拟,并模拟了2个工程实例的风速时程.结果表明:对于大跨度空间网格结构,不同风速时程模拟方法计算效率从高到低的顺序依次为快速傅里叶变换算法、插值算法、自回归法和常规谐波叠加法,计算精度从高到低的顺序依次为常规谐波叠加法、快速傅里叶变换算法、自回归法和插值算法.综合考虑计算效率和计算精度,快速傅里叶变换算法最适合应用于大跨度空间网格结构的风速模拟.     

建构我国宪法文化的几点思考

从市场经济的负面效应来解释建立宪法文化的艰巨性已难圆其说,而从传统文化中寻求答案、从外来文化中探索结果,是当今许多学者的研究思路。文章也试图以此方式来探讨我国宪法文化建构的相关问题。     

论和谐社会视角下的特色社区建设

和谐社会是要建立起人与人之间相互尊重、相互信任、相互容忍的社会,形成全体人民各尽其能、各得其所而又和谐相处的社会,其本质是“和而不同”。社区是社会的细胞,是构建和谐社会的战略空间单元。建设和谐社会的基础在社区,关键也在社区。在多元的社会中,必须在承认多样、差别和不同的前提下,构建社会主义特色社区,立足区情、开拓创新、大胆实践,不断地把和谐社会建设推向深入。     

State of the field: Are the results of science contingent or inevitable?

This paper presents a survey of the literature on the problem of contingency in science. The survey is structured around three challenges faced by current attempts at understanding the conflict between “contingentist” and “inevitabilist” interpretations of scientific knowledge and practice. First, the challenge of definition: it proves hard to define the positions that are at stake in a way that is both conceptually rigorous and does justice to the plethora of views on the issue. Second, the challenge of distinction: some features of the debate suggest that the contingency issue may not be sufficiently distinct from other philosophical debates to constitute a genuine, independent philosophical problem. And third, the challenge of decidability: it remains unclear whether and how the conflict could be settled on the basis of empirical evidence from the actual history of science. The paper argues that in order to make progress in the present debate, we need to distinguish more systematically between different expressions that claims about contingency and inevitability in science can take. To this end, it introduces a taxonomy of different contingency and inevitability claims. The taxonomy has the structure of an ordered quadruple. Each contingency and each inevitability claim contains an answer to the following four questions: (how) are alternatives to current science possible, what types of alternatives are we talking about, how should the alternatives be assessed, and how different are they from actual science?     

论儒家师生观对构建和谐师生关系的启示

挖掘儒家传统文化的内涵并做好现代转化,对于当前和谐师生关系的构建有重要启示。一方面应强调学生要尊师重教,另一方面则强调教师必须为人师表,尊师与爱生相得益彰。老师只有对学生付出关爱,才能获取学生的礼敬与尊崇。     

合唱艺术涵盖的美感

作为音乐与文学相结合的合唱艺术,以音乐化的语言为造型手段,工具作细致的刻画。它借助歌词的诗情性、旋律的抒情性、和声演唱的多元化形象造型,来真正传达出丰富深厚的美韵。     

“场地精神”中孕育的情感建筑

通过一项实际工程的建筑设计探讨一种有价值的设计方法，介绍了中山大学伍舜德学术交流中心的设计思考过程，提出建筑设计植根于“场地精神”（重视建筑和自然的场地特征），从场地特征中取得灵感并反映其内在“精神气质”的原则，着重于这种观点设计并同时高度关注人的使用和心理感觉的建筑是具有情感的建筑。“场地精神”可以成为建筑设计的一种出发点。     

国际和谐社会概念探析

构建国际和谐社会是国际政治历来研究的基本问题之一。本文在总结各种国际社会和谐的观点的基础上,从不同角度对国际社会和谐问题进行分析概况。最后提出一个笔者认为比较合适的国际和谐社会概念。     

美术专业学生应具备坚实的素描造型基础

素描是美术的基础，大学生要具备严格的素描造型基本功，才能在事业上有所发展和创造。文章就如何以大师为榜样来对待基本功及怎样抓好基本功训练提出了三点建议。     

Discretionary databases in forecasting

Information for forecasting databases is often initially under the control of individuals who have no compelling reason to contribute, and who face various significant costs if they do. Such discretionary databases are subject to public goods problems, and are likely to be undersupplied, even when all participants agree that the overall benefits outweigh the overall costs. This paper explores the implications of this incentive structure for the existence, completeness and accuracy of forecasting databases. It also offers some hypotheses as to when the difficulties will be more and less severe, and outlines some directions for possible remedial strategies.