电子对抗系统可靠性的参照式模糊综合评估

使用模糊综合评判与贴近度的理论对电子对抗系统的可靠性进行了评估,并将这种评估方法与传统模糊综合评估方法进行了对比分析,并参照已有的评估体系建立了一套电子对抗系统的可靠性的评估指标．以作为使用本评估算法的评估基础。     

优化机件尺寸规格组合,提高纱线质量水平--建议四则

针对目前若干棉纺机件组合在实际生产中暴露的一些缺陷，提出建议：①细纱上罗拉元件中心距Tw必须与下罗拉的中心距公称尺寸一致；②A201系列、FA251系列、PX2系列等精梳机整体锡林齿面角优化弧度及梳理区间和相应优化定时定位，有利于提高梳理度和产品质量，以供纺机和专件设计人员参考。     

1201-2回风顺槽采空区下合理错距及围岩控制技术研究

为保障近距离煤层采空区下1201^-2回风顺槽围岩的稳定,基于巷道赋存情况,采用FLAC^3D数值模拟软件进行巷道与上覆采空区合理错距的分析,通过对比分析不同错距下围岩应力和塑性区发育,确定合理错距为20 m。结合数值模拟结果及巷道地质条件,设计巷道采用注浆短锚索+锚杆支护方案,并进行围岩变形量的观测分析。结果表明,巷道掘进期间围岩变形量小,围岩处于稳定状态。     

发耳煤矿近距离煤层自燃预测指标研究

为了提高发耳煤矿近距离煤层自燃预测的准确性,对发耳煤矿6个主采煤层的煤样进行程序升温实验,分别得到低温氧化阶段的临界温度、干裂温度和CO、C₂H₄等气体产生规律。通过分析煤样的耗氧速率、放热强度、气体比值与温度之间的对应关系,建立了发耳煤矿近距离煤层自燃预测及分级预警指标。结果表明:1煤层和3煤层的氧化性最强,7煤层的氧化性相对较弱。在低温氧化阶段,CO生成量随温度的升高显著增加,在110℃~120℃时开始产生C₂H₄,耗氧速率、CO产生率、CO₂产生率在70℃~80℃和130℃~140℃范围内出现2次明显的突变。通过对比、和气体比值进行分析,能消除实验条件的误差,提高近距离煤层自燃预测的准确性和灵敏度。     

矿用UPS中智能充电系统设计

文章阐述了传统矿用交流不间断电源充电环节所存在的不足,研究了采用IGBT斩波控制来实现三段式充电的智能化电池充电技术,通过对不同容量的电池配置采用不同的充电参数,可达到延长蓄电池使用寿命的目的。并在不同负载情况下,对矿用在线式不间断电源充电电路进行相应的实验,实验结果表明所设计的电路可延长电池的使用寿命。     

Does familiarity breed contempt or liking? Comment on Reis, Maniaci, Caprariello, Eastwick, and Finkel (2011).

Reis, Maniaci, Caprariello, Eastwick, and Finkel (see record 2011-04644-001) conducted 2 studies that demonstrate that in certain cases, familiarity can lead to liking—in seeming contrast to the results of our earlier article (see record 2006-23056-008). We believe that Reis et al. (a) utilized paradigms far removed from spontaneous, everyday social interactions that were particularly likely to demonstrate a positive link between familiarity and liking and (b) failed to include and incorporate other sources of data—both academic and real-world—showing that familiarity breeds contempt. We call for further research exploring when and why familiarity is likely to lead to contempt or liking, and we suggest several factors that are likely to inform this debate. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

平推窗的启闭力分析及解决办法

平推窗启闭力过大、开关费力一直饱受消费者诟病。本文简要分析造成这种现象的原因并提出相应解决办法。     

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。