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991.
本文先分析了数字图像的二值化处理,在此基础上提出了对模糊运动影像的处理方法并建立了运动模糊图像的识别数学模型(FSVM)最后结合高速运动飞机的实验,表明本文提出的方法和同类方法相比是有效的.  相似文献   
992.
校园网络安全事件频发,安全问题严重。如何确保各校园网络的安全运营,更好地为教学和科研服务,成为各大院校十分关注的问题。安全应急响应系统是解决校园网络安全问题的有效途径。分析了校园网络环境的特点和安全风险,明确了什么是应急响应,指出了校园网络安全应急响应系统的主要功能、服务对象和服务内容,结合实践重点探讨了如何设计并实现校园网络安全应急响应系统。  相似文献   
993.
在污水处理中,泵站是生产的核心设备之一,其控制的好坏直接影响污水处理的效果和是否能实现节能降耗。该文以某污水处理厂为背景,分析了传统控制在提升泵站控制中的缺陷和不足,介绍了模糊控制和轮值控制的特点及在泵站的应用。实际运行表明,该方案是合理和行之有效的。  相似文献   
994.
王安华  涂序彦 《微计算机信息》2007,23(3X):93-94,148
气田管网应急调度是当前复杂智能网络研究领域中的一个前沿和热点问题。课题运用大系统多级递阶控制、智能信息推拉、案例推理等技术,对气田管网安全应急调度进行深入地、系统地研究,提出了基于大系统控制论的气田管网应急调度系统的架构与具体实现技术.避免了现有的管网调度方法在辨识警兆和测度警度等方面存在的局限性,是对气田管网安全应急调度管理方法的一种全新探索,将有效地提高气田管网应急调度管理的反应速度和决策水平。  相似文献   
995.
Timeliness is one of the most important objectives that reflect the quality of emergency services such as ambulance and firefighting systems. To provide timeliness, system administrators may increase the number of service vehicles available. Unfortunately, increasing the number of vehicles is generally impossible due to capital constraints. In such a case, the efficient deployment of emergency service vehicles becomes a crucial issue. In this paper, a multi-objective covering-based emergency vehicle location model is proposed. The objectives considered in the model are maximization of the population covered by one vehicle, maximization of the population with backup coverage and increasing the service level by minimizing the total travel distance from locations at a distance bigger than a prespecified distance standard for all zones. Model applications with different solution approaches such as lexicographic linear programming and fuzzy goal programming (FGP) are provided through numerical illustrations to demonstrate the applicability of the model. Numerical results indicate that the model generates satisfactory solutions at an acceptable achievement level of desired goals.  相似文献   
996.
分析了武钢氧气公司D台(10000 m3/h)制氧机改造后采用分子筛流程空分设备在保冷后,下塔出现二氧化碳堵塞故障的原因,论述了故障处理的方法以及预防的措施。  相似文献   
997.
采用集中焚烧处置是我国目前医疗废物安全处置的主要方法,本文对医疗废物焚烧处置工艺设计所涉及的关键技术问题进行了分析并提出了建议。  相似文献   
998.
刘苑飞 《山东冶金》2007,29(4):36-37
广钢5号高炉采用了图拉法新型高炉熔渣处理工艺,针对运行初期的设备故障采取了一系列改进措施。重新设计粒化轮轴承的密封型式,并在轴承座外增加甩水环,解决了粒化轮卡死的问题;扩大了粒化轮外壳的冷却面积,减少了粒化轮外壳的变形;改用耐磨泵减小了泵的故障。改进后减少了设备故障及维护费用,效益显著。  相似文献   
999.
Atria are commonly constructed in building complexes of the Far East, including Hong Kong. Fire safety has become a concern as a consequence of several large fires that have occurred since 1996. Atria are usually designed with an appropriate means of escape, but temporary structures or partitions are sometimes placed on the atrium floor. As a result, the evacuation patterns of occupants are then altered significantly from the original design. Safety aspects of evacuating occupants from the atrium floor were studied by considering two atria in Hong Kong under different uses. Simulations of each atrium were carried out to study the evacuation time with a different number of occupants. The first atrium was used to demonstrate how evacuation time would be prolonged by putting in temporary structures, and, the second was used to illustrate how locations of exits should be designed carefully. The software BuildingEXODUS was selected as the simulator. Results illustrated that emergency exits have to be provided carefully, not just by increasing their number. Safety management should be worked out by controlling the number of people staying in the atrium. A good choice is to apply engineering performance-based design. As most of the evacuation software was developed in the Western world, empirical parameters such as preaction time might not be suitable for the Far East. For giving better safety, studies on emergency evacuation are proposed.  相似文献   
1000.
In this study, a measure called task complexity (TACOM) that can quantify the complexity of tasks stipulated in emergency operating procedures of nuclear power plants is developed. The TACOM measure consists of five sub-measures that can cover remarkable complexity factors: (1) amount of information to be managed by operators, (2) logical entanglement due to the logical sequence of the required actions, (3) amount of actions to be accomplished by operators, (4) amount of system knowledge in recognizing the problem space, and (5) amount of cognitive resources in establishing an appropriate decision criterion. The appropriateness of the TACOM measure is investigated by comparing task performance time data with the associated TACOM scores. As a result, it is observed that there is a significant correlation between TACOM scores and task performance time data. Therefore, it is reasonable to expect that the TACOM measure can be used as a meaningful tool to quantify the complexity of tasks.  相似文献   
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