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排序方式: 共有3070条查询结果,搜索用时 15 毫秒
81.
本文通过分析黑球温度计的工作原理,依据青藏铁路某被动太阳房试验数据研究,分析了太阳房室内黑球温度、空气温度和围护结构内表面温度之间的关系,提出用室内黑球温度和室内空气温度以及围护结构内表面温度的温差来评价房间热舒适性的方法和依据。 相似文献
82.
通过建筑设计人员的一些住宅设计实践,这对目前在住宅细部构造设计方面经常出现的一些问题,阐述自己的观点,并提出在具体设计中相应的解决方法。 相似文献
83.
武钢3200 m3高炉出铁场设计 总被引:1,自引:0,他引:1
结合武钢5号、6号、7号3座3200m^3高炉出铁场设计实践,对3200m^3高炉风口平台及出铁场设计的工艺布置及平台结构形式、设备选型(包括炉前吊车、泥炮、开铁口机及揭、移盖机等)、出铁场除尘抽风量及其分配等进行了阐述。 相似文献
84.
Jaran Ratanachotinun Nat Kasayapanand Jongjit Hirunlabh Sopa Visitsak Sombat Teekasap Joseph Khedari 《中国工程学刊》2016,39(1):1-11
This research assessed the economic impact and construction costs of buildings with solar chimneys in Thailand, called bioclimatic houses. A solar chimney uses a combination of air gaps between walls and roof, and effective ventilation to lower the indoor temperature and reduce the need for air conditioning. The study looked at small, medium, and large size houses and studied construction techniques, the materials used, and the time needed to build a residential structure. It also polled owners of bioclimatic houses about their satisfaction. The techniques employed in building bioclimatic houses take slightly longer and cost slightly more than those used in standard construction. However, the study found that bioclimatic houses use approximately 10–20% less electricity for air conditioning require less maintenance and have a payback period of 6–13 years, depending on the size. The lifespan of insulation material used in standard houses is about 20–25 years, while the lifespan of a solar chimney is about 40–50 years. The solar chimney concept can also be applied to standard houses with minimal renovation. The study found that this type of house was suitable for use in Thailand, and with increased consumer awareness, had a high probability for adoption. 相似文献
85.
This paper begins by identifying the growth in female-headed households in Australia. Despite this increase, it is argued that females still lag males in terms of home ownership rates (HORs) with women in Australia facing similar ownership challenges as those experienced in the UK and the USA. In seeking to establish any dynamic change, the study analyses female home ownership rates in Australia for two points in time, 1998 and 2008. Logit models are used to predict HORs. The results indicate that factors such as household type, income and source of income have an impact on rates of ownership. The paper concludes that female-headed households in Australia show an increasing propensity to purchase which match, or even exceed, those of male-headed households. 相似文献
86.
James D. Johnston Ashlin E. Cowger Robert J. Graul Ryan Nash Josie A. Tueller Nathan R. Hendrickson Daniel R. Robinson John D. Beard K. Scott Weber 《Indoor air》2019,29(6):1005-1017
Recent work suggests that evaporative coolers increase the level and diversity of bioaerosols, but this association remains understudied in low‐income homes. We conducted a cross‐sectional study of metropolitan, low‐income homes in Utah with evaporative coolers (n = 20) and central air conditioners (n = 28). Dust samples (N = 147) were collected from four locations in each home and analyzed for dust‐mite allergens Der p1 and Der f1, endotoxins, and β‐(1 → 3)‐d ‐glucans. In all sample locations combined, Der p1 or Der f1 was significantly higher in evaporative cooler versus central air conditioning homes (OR = 2.29, 95% CI = 1.05‐4.98). Endotoxin concentration was significantly higher in evaporative cooler versus central air conditioning homes in furniture (geometric mean (GM) = 8.05 vs 2.85 EU/mg, P < .01) and all samples combined (GM = 3.60 vs 1.29 EU/mg, P = .03). β‐(1 → 3)‐d ‐glucan concentration and surface loads were significantly higher in evaporative cooler versus central air conditioning homes in all four sample locations and all samples combined (P < .01). Our study suggests that low‐income, evaporative cooled homes have higher levels of immunologically important bioaerosols than central air‐conditioned homes in dry climates, warranting studies on health implications and other exposed populations. 相似文献
87.
88.
分析了房屋安全鉴定与工程质量检测的关系,对房屋结构及构件的承载力复核验算依据进行了介绍,并对鉴定资质和设计资质的问题进行了讨论,同时阐述了一些房屋安全鉴定技术的概念,以供参考。 相似文献
89.
公租房项目工期紧任务重,工程内容构成复杂,需根据工程实际情况综合考虑各种因素,灵活运用多种合同类型,确保工程顺利实施。合理选择承发包双方都能接受的工程项目合同类型是公租房项目合同管理的关键一环,是保障公租房项目建设快速有序推进,实现较为理想的投资效益的重要手段。 相似文献
90.
农村住房始终是政府与农民关注的重点,尤其是城镇化不断推进、新农村建设加快的今天。改革开放后,随着农民收入的增加、政府在资金和政策上的支持,我国农村住房有了长足发展。本文将以农村住房为调查对象,重点分析农村房屋使用情况及其关系,分析其发展成因和存在的隐患,最后提出相关对策。 相似文献