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地铁消防应急救援站点选址优化研究
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作者 杨舜 彭少柯 +1 位作者 冯浩林 陈钦佩 《消防科学与技术》 CAS 北大核心 2022年第11期1580-1585,共6页
为了增强广州地铁轨道交通消防应急能力,通过构建数学模型,对地铁消防应急救援站点优化选址进行研究,首先建立考虑广州地铁轨道实际情况的限制时间模型和必选与非选站点模型,接着利用Lingo 18.0软件对限制时间模型进行求解,再利用必选... 为了增强广州地铁轨道交通消防应急能力,通过构建数学模型,对地铁消防应急救援站点优化选址进行研究,首先建立考虑广州地铁轨道实际情况的限制时间模型和必选与非选站点模型,接着利用Lingo 18.0软件对限制时间模型进行求解,再利用必选与非选站点模型进行优化,对于被重复覆盖的消防应急救援服务需求站点,选择距离最近的地铁消防应急救援站点作为需求站点的消防应急救援力量出发站点。最后从241个地铁站点中选出40个站点作为地铁消防应急救援站点,实现对所有地铁站点救援服务覆盖。 展开更多
关键词 地铁 消防应急救援站点 应急响应时间
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Relationship Between Work Stress and Mental Health of Middle School Teachers in Guangzhou
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作者 ZHU Hailong feng haolin 《Journal of Philosophy Study》 2022年第11期623-630,共8页
This study mainly discusses the relationship between middle school teachers’mental health and work stress in Guangzhou.This study uses questionnaire survey method to examine 237 teachers in Guangzhou,and adopts SPSS2... This study mainly discusses the relationship between middle school teachers’mental health and work stress in Guangzhou.This study uses questionnaire survey method to examine 237 teachers in Guangzhou,and adopts SPSS26.0 to conduct independent sample t-test,ANOVA,correlation analysis,and regression analysis to draw the conclusion.The results show that:(1)The work pressure of middle school teachers in Guangzhou is above the medium level,and their mental health is at the middle level.(2)Under the influence of different gender,position,age,teaching years,and teaching objects,the pressure of middle school teachers is different.(3)There is a significant positive correlation between teachers’work stress and the dimensions of self-confidence loss and social dysfunction of mental health.(4)Work stress can effectively predict the level of mental health.Therefore,we need to understand the pressure sources of middle school teachers to develop measures to alleviate the pressure of teachers and improve the mental health of middle school teachers. 展开更多
关键词 work stress mental health middle school teacher
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