共查询到20条相似文献,搜索用时 62 毫秒
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比较细水雾灭火系统和七氟丙烷气体灭火系统的设备材料和施工维护费用。从工程造价的角度,探讨细水雾灭火系统在实际工程应用中替代气体灭火系统的可能性。 相似文献
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本文分析了轧机火灾原因及二氧化碳灭火系统的特点,论述了高压与低压二氧化碳灭火系统的配置方案以及惰性气体灭火系统在轧机上的应用。 相似文献
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陈杨 《Canadian Metallurgical Quarterly》2011,(3)
随着信息作战理论和技术装备的飞速发展及其在军事领域的广泛运用,未来海上局部战争的作战行动对信息的依赖性越来越大,海上信息作战的地位作用日益突出.在未来海上战争中,联合机动编队的作战指挥行动受信息作战环境的影响也将越来越大. 相似文献
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本文论述了低压二氧化碳灭火系统在轧机灭火系统改造中的应用,详细介绍了我院开发设计的低压CO2灭火装置及灭火系统。 相似文献
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运用运筹学中图论及多目标优化的理论和方法建立应急救援物资车辆最佳运输路线的选择模型,并基于启发式算法求解该模型.从静态网络应急物资车辆运输路线的双目标优化问题入手,设计适合本文模型的算法,并将之推广至含有三个及三个以上优化目标的路线选择问题.引入时间扩展图的概念,将动态网络中的最佳运输路线问题转化为静态网络中的路径选择问题.算法实质是通过构造辅助决策函数实现Dijstra算法的调用,并在辅助函数构成的搜索空间上寻找最优解,是一种快速的、近似的算法.利用随机路网和真实路网测试本文算法,测试结果与本文的理论分析一致,证明本文算法在应急救援物资车辆运输路线的多目标优化问题中可行且有较好的应用效果. 相似文献
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阐述了细水雾、气溶胶的概念及灭火原理,并结合细水雾灭火系统和气溶胶灭火系统在冷轧厂的应用情况,介绍了两套系统的设备组成、工艺流程及控制方式等。 相似文献
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RL Tubbs 《Canadian Metallurgical Quarterly》1995,10(4):843-856
Since the NIH received a request to investigate the high degree of hearing loss in a fire department in 1980, hearing loss among firefighters has become an area of increased investigation. The author identifies the sources of occupational noise in firefighting, looks at audiometric testing and recent research in firefighting noise, and presents guidelines for implementing hearing conservation programs. 相似文献
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多智能体网络编队与避障控制旨在控制智能体,使它们保持一定的编队,同时躲避障碍物防止发生碰撞.通过建立与目标、障碍物和编队结构相关的势场函数,设计一种新的控制算法.为解决智能体在动态环境中不能有效躲避障碍物问题,建立一种速度势场,使智能体能很快地躲避动态障碍物.该算法具有易于实现的优点,因为控制是建立在智能体行为的基础上.仿真表明此方法具有有效性. 相似文献
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Transposition of the great arteries is functionally corrected by Mustard's operation, an operation in which the atrial septum is removed and the resulting common atrial chamber repartitioned by a baffle to transpose venous return to the heart. To better understand the new physiology, a physically-based mathematical model of the infant circulation following Mustard's operation was developed and studied with the aid of computer simulation. The model reproduces certain clinical observations, including the tendency for mean pressure in both atria to be equal early postoperatively and for the pressure waveform to exhibit a steep y-descent in the systemic venous atrium. Simulation studies suggest that the mechanism for the former is transbaffle pressure coupling resulting from dynamic motion of the baffle; the mechanism for the latter is limitation of the extent of such baffle excursions. Dynamic volume of the two atria is found in the model to change according to the relative performance of the two ventricles, and stiffening the baffle leads to pressure waveforms characteristic of a small, noncompliant atrium. Mechanisms for venous "obstruction" and decompression were also studied. The baffle and its movements, however, have little effect upon cardiac output in the model, leaving unexplained the clinical observation of low output early postoperatively. 相似文献
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B Micheli 《Canadian Metallurgical Quarterly》1997,52(1):237-257
Surgery of the TMJ is a useful tool in Temporo Mandibular Disorders (TMD). After have been identified what is part of TMD and what isn't, this article lay stress upon the fact that surgery of the TMJ is the appropriate treatment only when the nonsurgically therapy had failed. Indications, danger and complications are discussed. Procedures of arthrotomy and arthroscopy are explained. Various surgical procedures and staging of TMD are discussed. 相似文献
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