密集模态结构模态跃迁分析的简化摄动法

大跨空间结构的模态具有密集、低频的特性。结构在风作用下会产生非常复杂的动力学现象,模态跃迁就是其中的一种。以往对该类结构模态跃迁特性的研究几乎为一片空白。矩阵摄动分析法是研究变参数结构模态特性的重要方法,在已有矩阵摄动法基础上,该文提出分析密集低频结构模态跃迁现象的简化摄动法。阐述模态跃迁的机理,并加以证明。算例结果表明:简化摄动法用于密集低频结构模态跃迁的分析是有效、可行的,且简化了移位密集特征值摄动法的计算过程。     

紫外线电离型SF6气体检漏仪

本论述了应用紫外线电离法进行SF6气体检测的原理，并阐述了SF6检测仪关键部件的电路结构，同时也简明地叙述了应用软件技术进行非线性处理，零点飘移及仪器标定方法。     

The anxiety-buffering function of close relationships: Evidence that relationship commitment acts as a terror management mechanism.

Three studies examined the terror management function of romantic commitment. In Study 1 (N=94), making mortality salient led to higher reports of romantic commitment on the Dimensions of Commitment Inventory (J. M. Adams & W. H. Jones, 1997) than control conditions. In Study 2 (N=60), the contextual salience of thoughts about romantic commitment reduced the effects of mortality salience on judgments of social transgressions. In Study 3 (N=100), the induction of thoughts about problems in romantic relationships led to higher accessibility of death-related thoughts than did the induction of thoughts about either academic problems or a neutral theme. The findings expand terror management theory, emphasizing the anxiety-buffering function of close relationships. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

超大尺寸双级注水泥器的研制与应用

为解决常规双级注水泥器关闭不严、关闭压力过高及在扫除附件后密封失效等问题,开发了YFZ-A型外关闭式大尺寸双级注水泥器。该双级注水泥器由双级箍总成、挠性塞、打开塞、关闭塞、中胶塞及挠性塞座等部件组成。该注水泥器采用外关闭式结构,将关闭套置于双级注水泥器本体外,在进行扫塞作业时,可有效避免钻头损伤关闭套及其密封件情况的发生,从而根除了扫塞后密封失效问题;另外,它一改由关闭塞推动关闭套下行关闭的传统结构型式,而由液压推动关闭套下行关闭,使得关闭更可靠。密封试验及各种功能试验表明,挠性塞通过压力、打开压力、关闭压力、密封能力等各项性能指标均达到设计要求,并在现场取得良好应用效果。     

Beyond the F Test: Effect Size Confidence Intervals and Tests of Close Fit in the Analysis of Variance and Contrast Analysis.

This article presents confidence interval methods for improving on the standard F tests in the balanced, completely between-subjects, fixed-effects analysis of variance. Exact confidence intervals for omnibus effect size measures, such as or and the root-mean-square standardized effect, provide all the information in the traditional hypothesis test and more. They allow one to test simultaneously whether overall effects are (a) zero (the traditional test), (b) trivial (do not exceed some small value), or (c) nontrivial (definitely exceed some minimal level). For situations in which single-degree-of-freedom contrasts are of primary interest, exact confidence interval methods for contrast effect size measures such as the contrast correlation are also provided. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

运用预应力组合凹模的拉伸模设计

介绍了在工件料厚变化较大的拉伸模中采用预应力组合凹模的设计方法 ,在实际生产中应用取得了良好的效果     

When the presence of creative coworkers is related to creativity: Role of supervisor close monitoring, developmental feedback, and creative personality.

Study 1 was conducted to examine the contribution of the joint condition of supervisor close monitoring and the presence of creative coworkers to employees' creativity. In addition to replicating Study 1's results, Study 2 examined (a) the joint condition of supervisor developmental feedback and presence of creative coworkers and (b) whether creative personality moderated the contributions of the 2 joint conditions. Converging results from the 2 field studies demonstrated that when creative coworkers were present, the less supervisors engaged in close monitoring, the more employees exhibited creativity. Study 2 also found that the contribution of this joint condition was stronger for employees with less creative personalities and that when creative coworkers were present, the more supervisors provided developmental feedback, the more employees exhibited creativity. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

计算机集散监控下的机械封闭式试验台

本文对机械封闭式试验台的结构和性能以及加载方法进行了简述、较详细地叙述了集散监控微机系统的控制方式，并以一试验实例叙述了该系统的使用程序及功能，为实现室内模拟道路载荷谱试验提供借鉴手段。     

爆炸载荷下建筑物动态响应的数值分析

为了研究建筑物在爆炸载荷下的动态响应,采用有限元的方法对近距离爆炸对建筑物的破坏效应进行了数值模拟研究。建立了一个七层七跨的钢筋混凝土(带门窗)结构建筑模型,对800 kg TNT炸药在正面及侧面不同距离处爆炸时建筑物的响应特性进行研究,得出了每种工况下建筑物不同位置处压力、速度、加速度及位移随时间变化曲线。为建筑物在外爆炸作用下的破坏效应评估提供了重要的参考。     

基于模糊综合评价法的城市人居环境评价体系研究

为了对城市人居环境质量做出科学、客观的评价,提出一种改进的模糊综合评价模型,将模糊数学理论应用于环境质量的评价中,结合城市人居环境的特点建立多目标指标体系,采用层次分析法与群体决策相结合来确定指标权重,应用贴近度法确定评价等级。并且结合具体的实例对模型进行了应用,获得了较准确、客观的评价结果,为促进城市人居环境质量的改善提供可靠的决策支持。