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室内空气品质的数值模拟及评价 总被引:1,自引:0,他引:1
室内空气品质与人的感知以及个体差异紧密相连,室内空气品质不佳将对人的身心健康和工作可靠性产生巨大的不利影响,如何改善室内人居环境,创造健康、舒适的室内空气环境已经成为现代建筑科学的前沿研究课题.文章利用计算机模拟技术对学生宿舍中的空气品质进行了数值模拟,并采用PMV值对房间内的空气质量进行了评价,得出了评价结果.结果表明:该宿舍通风状况良好,人体感觉舒适,通过自然通风就能很好的调节室内空气品质. 相似文献
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一条谚语三句话,看人看房看地下。房倒屋塌有七度,四度有感十遭难。 这条谚语本是专业人员的口诀,讲清了地震烈度中三个最重要的分级关系。 众所周知,评定地震自身能量大小时,用震级来度量;而欲评定一次地震的破坏程度和影响效应时,就要用烈度这个量了。烈度是以宏观破坏现象为判据的,分为若干等级,并制定了相应的判别标准,称为烈度表。一般情况下,震中区的烈度最大(烈度异常区除外),向外逐 相似文献
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龙王深居龙宫,统辖水族虾兵蟹将,自是水域各类水体生物的最高利益代言人了。在动物权利论者看来,作为有感觉能力的鱼虾是不应被捕捞食用的,龙王自当保护好每一只鱼虾。 相似文献
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黄仕雄 《环境与可持续发展》2009,34(4)
色彩是室内环境设计中重要的组成部分,是室内环境设计营造的灵魂.它能体现出地域性、民族性、目的性、时代气息.通过色彩语言的设计,有助于创造特定室内环境与功能. 相似文献
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Chemotaxis to water-soluble attractants is mainly controlled by ASE sensory neuron whose specification is regulated by che-1 in
Caenorhabditis elegans. Our data suggested that exposure to high concentrations of metals, such as Pb, Cu, Ag, and Cr, would result
in severe defects of chemotaxis to water-soluble attractants of NaCl, cAMP, and biotin. Moreover, the morphology of ASE neuron
structures as observed by relative fluorescent intensities and relative size of fluorescent puncta of cell bodies, relative lengths of sensory
endings in ASE neurons, and the expression patterns of che-1 were obviously altered in metal exposed animals when they meanwhile
exhibited obvious chemotaxis defects to water-soluble attractants. In addition, the dendrite morphology could be noticeably changed
in animals exposed to 150 mol/L of Pb, Cu, and Ag. Furthermore, we observed significant decreases of chemotaxis to water-soluble
attractants in Pb exposed che-1 mutant at concentrations more than 2.5 mol/L, and in Cu, Ag, and Cr exposed che-1 mutant at
concentrations more than 50 mol/L. Therefore, impairment of the ASE neuron structures and functions may largely contribute to the
appearance of chemotaxis defects to water-soluble attractants in metal exposed nematodes. 相似文献
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