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《中国安防产品信息》2000,(6):4-4
为适应全球新经济的发展趋势,利用互联网技术更好地发挥中国安全防范产品行业协会的作用,经过近一年的筹备建设,由行协主办的“中国安全防范行业网”(http://www.21csp.com.cn)大型权威性网站于2000年12月底试运行,这是整个安防行业走向信息化、网络化和电子商务化的重大举措。 相似文献
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《中国安防产品信息》2006,(1):11-16
各位理事:
2005年,是中国安全防范产品行业协会致力改革,创新发展的一年.在这一年中,我们坚持协会工作服从、服务于党、国家和公安工作的中心任务,坚持为政府、会员、行业和社会服务,强化改革意识、法制意识、市场意识和服务意识,积极开展行业规划、科研攻关、行业自律及管理制度的研究工作,精心搭建国内外技术交流平台、国内外市场交易平台,筹备行业统计信息发布平台,使得年初在第四次会员代表大会上确定的8项重点工作,已基本完成或正在得到落实.现在我向理事会报告行业协会2005年的工作情况,同时提出2006年协会工作的重点,请各位审议. 相似文献
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Reaction-rate parameters are given for the detailed chemistry of gas-phase hydrogen combustion, involving 21 reversible elementary steps. It is indicated that, when attention is restricted to specific combustion processes and particular conditions of interest, fewer elementary steps are needed. In particular, for calculating autoignition times over a wide range of pressures for temperatures between about 1000 and 2000 K, five irreversible elementary steps suffice, yielding a remarkable reduction in complexity. It is explained that, from a mathematical viewpoint, in terms of global reaction-kinetic mechanisms, the hydrogen–oxygen system in principle comprises only six overall steps. Rational reduced chemical mechanisms for hydrogen combustion therefore necessarily must have fewer than six overall steps. For autoignition over the range of conditions specified above, ignition times can be determined accurately by considering, in addition to an elementary initiation step and an elementary termination step, at most three overall steps for reaction intermediaries, which reduce to two for very fuel-lean conditions and to one for stoichiometric or fuel-rich conditions. The resulting reductions can simplify computations that need to be performed in risk analyses for hydrogen storage and utilization. 相似文献
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