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101.
论化工企业的防火设计 总被引:1,自引:0,他引:1
黄学勤 《中国人民武装警察部队学院学报》2001,17(6):37-38
通过分析现行化工企业防火设计的基本做法和趋势,提出化工企业防火设计的要点及应注意的问题. 相似文献
102.
Nowadays, Chemical-Biological-Radiological-Nuclear-explosive (CBRNe) risks are one of the world's main safety concerns. The radiological disasters of Fukushima and Chernobyl, the chemical events of Seveso or the release of Sarin in the Tokyo Subway, the biological emergencies such as the H1N1 flu or the recent Ebola outbreak, and recent news about the availability of non-conventional weapons acquired by fundamentalist organisations represent evidence of potential future threats. CBRNe risks are a real and global threat. The University of Rome, Tor Vergata, in collaboration with the most important Italian and international bodies working in the field of CBRNe safety and security, and supported by the North Atlantic Treaty Organisation and the Organisation for the Prohibition of Chemical Weapons, organises International Masters Courses on the Protection against CBRNe events. Within this framework, a Table-Top Exercise was planned, in collaboration with the Italian Ministry of Interior and Ministry of Defence. The scenario, the logistic organisation, on-going adjustments during the exercise and the outcomes are presented here and analysed. 相似文献
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104.
蔡章生 《海军工程大学学报》1997,(1)
采用去耦合法,在未作任何假定的条件下,导出了点堆中子动力方程组的精确解。此解可通用于反应堆启动,次临界、缓发超临界,一直到瞬发超临界。此解计算精度高,可用于要求计算精度较高的定量分析,计算工作量小,可用手算。对于反应堆现场运行监督性快速估计的计算,尤为适宜。 相似文献
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107.
张新平 《中国人民武装警察部队学院学报》2013,(12):68-70
随着城镇化的快速发展,“城中村”火灾多发,形势严峻.对现阶段“城中村”的火灾特点进行了分析,结合工作实际,提出并分析了“城中村”存在的消防安全问题,就如何提升“城中村”抗御火灾能力提出了防火对策. 相似文献
108.
王朝玺 《兵团教育学院学报》2013,(4):76-78
问题意识是人们对客观事物做出自觉反映的心理过程,对提高中学生数学教学课堂效果具有积极的意义。本文首先指出了数学教学中学生问题意识的培养意义,在深入分析存在的问题的基础上,重点提出了中学生数学教学问题意识培养的多种途径:教师要秉持积极的鼓励姿态,让学生敢问;创设良好的问题环境,让学生爱问;提供合适的思考时空,让学生能问;把握必要的"五度六要",让学生会问。 相似文献
109.
Thermal safety of modular charge which is fed into and retained in the chamber after gun fires consecutively is first investigated with cook-off method.A two-dimensional cook-off model of modular charge in gun chamber is established and the cook-off process of modular charge in gun chamber is numerically simulated.Then the effects of module number and firing condition on charge thermal safety are evaluated by researching the cook-off response characteristics of modules.The results show that,under conditions of different module numbers the cook-off responses all occur on the module closest to the boundary of missile,and the single-base propellants located at the inner surface of cartridge ignite first.When the number of loaded module changes from 1 to 6,the cook-off response temperatures vary little,only in a small range of 478.1 K-482.4 K.The cook-off response times decrease logarithmically in the range of 211.2 s-166.7 s with the increasing length of residual air gap in gun chamber.The simulation results are well matched with the experimental data.Furthermore,different firing conditions have great influence on the cook-off response time,minor influence on the initial response position and little in-fluence on the response temperature.Under the three conditions of consecutive 32 launches with 5 rounds/min,43 launches with 1 round/min,and 41 launches with different firing frequencies,the cook-off response temperatures are 479.2 K,481.1 K and 479.9 K respectively and the response times are 709.2 s,211.2 s and 214.4 s respectively.The response position is near the middle area of the inner cartridge surface in the former condition and near the right area in the latter two conditions. 相似文献
110.
《防务技术》2022,18(10):1922-1934
On a narrow warship platform, the coordinated use of shipborne weapon systems may cause firepower conflicts, which seriously endangers the ship safety. Meanwhile, with directed-energy weapons mounted on ships, firepower conflicts between weapons become a “high probability event”. Aiming at the problem of firepower safety control, based on the research about the collision probability model of air crafts and space targets and according to the cone of fire model of conventional weapons and directed-energy weapons, this paper solved the firepower conflict probabilities between conventional weapons as well as between conventional weapons and directed-energy weapons respectively using the methods of probability theory, and established the firepower safety control model. Then the calculation of firepower conflict probability was carried out using the dimensionality reduction method based on the equivalent conversion of polar coordinates and the power series method based on Laplace transform. The simulation results revealed that the proposed model and calculation methods are effective and reliable, which can provide theoretical basis and technical support for resolution of firepower conflicts between weapons. 相似文献