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基于过程免疫时间的半导体企业电压暂降经济损失预评估方法 被引量:17
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作者 张旭彬 张逸 +3 位作者 张孔林 李为明 郭庆波 李俭华 《电工电能新技术》 CSCD 北大核心 2018年第6期43-49,共7页
电压暂降已成为最严重的电能质量问题,给用户带来了极大的经济损失。国内外目前针对半导体企业电压暂降经济损失预评估的研究较少,为此本文提出一种基于过程免疫时间的实用评估方法。首先,以液晶屏面板为研究对象,应用故障树分析法对半... 电压暂降已成为最严重的电能质量问题,给用户带来了极大的经济损失。国内外目前针对半导体企业电压暂降经济损失预评估的研究较少,为此本文提出一种基于过程免疫时间的实用评估方法。首先,以液晶屏面板为研究对象,应用故障树分析法对半导体复杂的生产过程进行分解以确定关键设备的逻辑连接关系;其次,结合实测的设备过程免疫时间和逻辑连接关系推算生产过程的综合过程免疫时间;再次,依据历史电压暂降监测数据和综合过程免疫时间预测生产过程中断次数;最后,结合生产过程中断次数和单次中断经济损失预估用户总经济损失值。实例分析结果验证了所提方法符合工程实际,具备可行性,对新投建的半导体生产线选择电压暂降治理方案、制定生产计划具有参考意义。 展开更多
关键词 半导体 电压暂降 经济损失预评估 过程免疫时间 生产过程中断
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Economic Appraisal of Damages Caused by Forest Fires Adopting a New Prevention and Suppression System: The Case of Rhodes Island, Greece
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作者 A.S. Christodoulou N. Theodoridis K. Papastergiou 《Journal of Environmental Science and Engineering》 2011年第4期475-482,共8页
Rhodes is one of the most forested islands of Greece, in the Prefecture of Dodecanese, in southeast of Aegean Sea. The island in recent times has been struck by big and devastating fires. After 1993, the local Forest ... Rhodes is one of the most forested islands of Greece, in the Prefecture of Dodecanese, in southeast of Aegean Sea. The island in recent times has been struck by big and devastating fires. After 1993, the local Forest Service and the local political authority have adopted a new prevention and suppression system relied on the fast fire detection and suppression at its initial stages. By the present research, comparing the results of 1993-2006 (a time span when the above method was applied) with the results of the immediately precedent equal time of 1978-1992, was made certain that the firefighting system applied after 1993 had very good results irrespective from the primary agency in charge of extinguishing the forest fires. Among others, it was made clear that, during the period that this method was applied, a much less area was burnt per year than the period before the application in spite of the fact that in the same period (1993-2006) there has been a significant increase of forest fires. It is also estimated that the economic damage occurred in the first period (1978-1992) on average was 12.4 times per year higher compared to the second period (1993-2006). 展开更多
关键词 Forest fires fire detection economic impacts Rhodes island-Greece.
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