公共娱乐场所防排烟技术应用研究

说明公共娱乐场所设置防排烟设施的必要性,探讨该场所防排烟方式的选择,防排烟设置部位,机械排烟量计算,以及公共娱乐场所自身存在的问题。并指出多层民用建筑或人防工程内公共娱乐场所机械排烟系统与通风系统相结合,通篇文章体现该场所防排烟设计简便实用性。     

多媒体智能双向教学与监控系统

结合师范院校的实际情况，研究了多媒体智能双向教学与监控系统的技术路线，介绍了几种主要设备的功能和技术参数，并对其优势进行了深入的分析探讨。     

分析纯盐酸生产中残渣偏高的原因及控制措施

本文对在设备及设备参数确定的条件下，分析纯盐酸生产中残渣偏高的原因进行了分析探讨。结果表明，进塔原料的流量及蒸馏塔釜的温度是影响成品残渣偏高的主要因素，并提出了相应的控制措施。     

Formal Development of Feedback Control System with Fault Accommodation

1.INTRODUCTIONColltrolsystemsarevulnerabletofaultsincolltrolloopswherefaultsmayabruptanddamagingresponses.Thesesystemswithfaultaccommodationarebecolliingmoreandmoreimportalltwhileappearinginflightcontrol,robotscontrolandnuclearreactorcontroletc,andcallingformuchrigorousdevelopmentapproach.AstructureofthiskindofsystemcanbeseeninFig.l.Theproblemofdevelopingsuchsystemsis,foragivenplat,aworkingenvironmelltandarequiremellt,howtodesignnormalcolltroller,reconfigUledcolltroller,andFDImechanisms…     

Intervening on time derivatives

Interventionism analyses causal influence in terms of correlations of changes under a distribution of interventions. But the correspondence between correlated changes and causal influence is not obvious. I probe its plausibility with a problem-case involving variables related as time derivative (velocity) to integral (position), such that the latter variable must change given an intervention on the former unless dependencies are introduced among the testing and controlling interventions. Under the orthodox criteria such interventions will fail to be appropriate for causal analysis. I consider various alternatives, including permitting control interventions to be chancy, restricting the available models and mitigating variation of off-path variables. None of these work. I then present a fourth suggestion which modifies the interventionist criteria in order to permit interventions which can influence other variables than just their own targets. The correspondence between correlated changes and causal influence can thereby saved when dependencies are introduced among such interventions. This modification and the required dependencies, I argue, are perfectly in line with practice and may also assist in a wider class of cases.     

统计尺寸公差的功能及控制

本文从含改善产品性能及降低加工成本两方面阐述采用统计尺寸公差的必要性。为使统计尺寸公差获得生产运用,本文提出了控制统计尺寸公差的可行方法及图样标注方式。     

基于高频注入信号瞬时频率估计的永磁同步电机转子位置检测

在永磁同步电机的控制中,无论是矢量控制还是直接转矩控制,都需要适时精确知道转子位置的信息。本文探索性地提出基于信号瞬时频率估计的方法,对永磁同步电机的高频电流响应信号进行检测和处理,通过提取谱图的峰值和相关的频率来估算出实际的瞬时频率,进而获得正确的转子位置信息。     

基于MULTISIM11的多路抢答器控制电路的设计与仿真

论文主要对多路抢答器的控制电路进行设计,并在MULTISIM11环境中进行仿真分析,通过仿真说明该电路具有控制功能。     

地地弹道导弹研制方案综合评价决策模型

针对地地弹道导弹武器系统方案阶段进行方案决策的需求，在建立方案评价目标体系的基础上，分别建立了单目标准则下的效能评价模型、费用评价模型、风险评价模型以及综合考虑多个因素的多目标综合评价决策模型，以实现地地弹道导弹武器系统在方案阶段对系统效能、费用、研制周期和风险四个方面进行全面分析和综合评估，为使用方进行方案论证和方案评审提供定量分析的依据。