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文章选取河北太行山区井陉县大梁江的一处传统石窑民居和一处现代民居为研究对象进行夏季室内热环境的实地测量.通过对选取的四个测点的空气温度和空气相对湿度两项气候数据的实地测量和分析,并以测量数据为基础利用相关公式对人体舒适度指数进行定量计算比较,针对这两种乡村民居的室内热环境展开研究.研究结果发现,传统石窑民居的室内空间热稳定性较好,但传统石窑民居的室内相对湿度较高.文章再以定量定性分析对比为依据,为既有的传统石窑民居和现代民居夏季室内热环境的提升提出被动式改造建议. 相似文献
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文章选取河北太行山区井陉县大梁江的一处传统石窑民居和一处现代民居为研究对象进行夏季室内热环境的实地测量.通过对选取的四个测点的空气温度和空气相对湿度两项气候数据的实地测量和分析,并以测量数据为基础利用相关公式对人体舒适度指数进行定量计算比较,针对这两种乡村民居的室内热环境展开研究.研究结果发现,传统石窑民居的室内空间热稳定性较好,但传统石窑民居的室内相对湿度较高.文章再以定量定性分析对比为依据,为既有的传统石窑民居和现代民居夏季室内热环境的提升提出被动式改造建议. 相似文献
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文章选取河北太行山区井陉县大梁江的一处传统石窑民居和一处现代民居为研究对象进行夏季室内热环境的实地测量.通过对选取的四个测点的空气温度和空气相对湿度两项气候数据的实地测量和分析,并以测量数据为基础利用相关公式对人体舒适度指数进行定量计算比较,针对这两种乡村民居的室内热环境展开研究.研究结果发现,传统石窑民居的室内空间热稳定性较好,但传统石窑民居的室内相对湿度较高.文章再以定量定性分析对比为依据,为既有的传统石窑民居和现代民居夏季室内热环境的提升提出被动式改造建议. 相似文献
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本文选取浙中山区典型的传统民居作为研究对象,对其夏季室内热环境和部分室外气象参数进行现场实测和调研。本文利用PMV模型、PMV with Elevated Air Speed模型、适应性模型对实测数据进行分析,发现PMV风速修正模型与调研结果吻合得较好。研究结果显示,室内风速与△SET*之间具有对数关系。在偏热环境下,人们对于室内风速范围的接受度大于0.2m/s。 相似文献
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徽州传统民居夏季室内热环境研究 总被引:2,自引:0,他引:2
以典型徽州传统民居为研究对象,在夏季对其进行了温湿度、风速及黑球温度等室内热环境参数的测试,并以问卷的方式调查了当地居民的热感觉和热需求。通过对调研数据的分析发现,各主要使用房间平均温度为26.9~28.4℃,防热效果较好。但内部重遮阳、轻通风使得民居室内潮湿;空斗墙具有良好的隔热降温作用;轻质屋顶构造造成了顶层温度高于底层,甚至夏季无人在顶层居住;实测中性温度为29.1℃,预测中性温度24.3℃。针对徽州传统民居夏季室内热环境的特征及成因进行了定量分析,并对当地居民热舒适需求进行统计研究,为当地民居的发展和改善提供了依据。 相似文献
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结合目前高速公路施工项目招投标活动的实际情况,阐述了最低评标价法的概念,归纳了其优点及存在问题,对完善最低评标价法提出几点策略,以期促进招标投标市场更加规范有序。 相似文献
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This article analyses state-led place-making practices in Melbourne. The two levels of government that influence planning in Melbourne make much of the city as ‘culturally vibrant’ and ‘creative’, and have incorporated creative city-inspired place-making principles into many layers of the planning system. An examination of the development of two mixed-use megaprojects in central Melbourne reveals however that ideals of culturally engaging public places, and indeed of creative landscapes for middle-class consumption, wither in the face of more basic imperatives for economic development. In these case studies the ‘creative city’, no matter how the idea is interpreted, has little traction either as a set of inclusive place-making principles or as a gentrification strategy. The article concludes that the creative city-inspired place-making objectives in the planning system at both state and local levels are ambiguous in their overall intents and completely unsupported by statutory controls. Such place-making objectives as are realised are the compromised results of the interplay of uncoordinated decisions, delivered at the pleasure of the developer. 相似文献
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Vo Thi Yen-Phi Andrea Rechenburg Joachim Clemens 《The Science of the total environment》2010,408(9):2050-2053
Septage is widely acknowledged as a major source of infectious pathogens while disposal of septage, and the operation and maintenance of septic tanks, is not regulated in many developing countries. Twenty untreated septage and septage sludge samples were taken from Can Tho City, Vietnam to examine their pathogen content, and indicator micro-organisms. Escherichia coli and Enterococcus spp. were detected in all samples, regardless of sludge storage time. Phages were detected in 80% of samples. Salmonella spp. were detected in 70% of the untreated septage and 60% of septage sludge samples. Concentrations of phages and bacteria tested in septage sludge after many years of tank storage were much higher than the expected levels. Helminth ova were present in 95% of untreated septage samples with an average of 450 ova l− 1, and were detected in all septage sludge samples with an average of 16,000 ova l− 1. Twelve varieties of helminth ova were identified. More helminth ova varieties in higher concentrations were found in septage than those reported from stool samples. The varieties' frequency ranged from 10% to 50% and Ascaris lumbricoides predominated. Results show that pathogens and indicator micro-organisms, especially helminth ova, accumulate in sludge. Thus helminth ova should be considered when septage sludge is treated and used for agriculture. Proper health protection measures must be applied for people handling septage. 相似文献
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近两年来,工程公司在提高市场竞争意识、推动市场化进程中做了大量工作,其中坚持走出去的方针是我们自我加压、推行加快市场化步伐的一个重要战略步骤。 相似文献
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新时期广东城市化的新特点 总被引:4,自引:0,他引:4
新时期广东城市化出现以下特点:知识源导向、城市由单体向群体化发展、产业集群推动、政府主导自上而下的集约化发展、城镇化向城市化转变、由重“数量”发展向重“质量”发展的转变。 相似文献
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《Planning》2022,(5)
在市场条件下高校基建财务人员在加强日常财务管理的同时,必须树立起高度的工作责任心,抓好事前监督、事中监督、事后监督三个环节,全面理解、贯彻执行《高等学校财务制度》,管好用好各项基本建设资金,提高基建财务管理水平,更好地完成高校各项基建任务,以有限的投资,最快的建设速度,获得最大的投资效益。 相似文献
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北京中原房地产经纪公司市场研究部 《建设科技(建设部)》2005,(4):47-48
趋势一:CBD区域写字楼集中放量从各区域规划方案上看,CBD区域多数项目在03~04年处于项目的报批手续及拆阶段,预计2005年正式推向市场,因此2005年CBD区域将成为北京市场供应集中的域,区域即将供应的项目有北京财富中心(二期)、金地国际花园、万达广场、SOHO尚都、万通中心、世纪财富中心、怡禾国际中心、光华国际等。除去未知项目,2005CBD写字楼办公面积的供应量为60万平方米左右。中关村区域经过一段时间的集中供后开始逐步放缓,2005年供应的体量相对较大的项目有中关村金融中心、新中关。金街区域可能开盘的项目只有2个:英蓝国际中… 相似文献
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浅谈我国工程项目建设成本控制存在的问题 总被引:2,自引:0,他引:2
结合目前我国施工企业工程项目成本管理现状,对工程项目成本管理过程中存在的问题进行了较详细的分析,并提出了一些解决问题的办法,以做好项目成本控制工作,进而增强企业经济实力。 相似文献
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Ozone concentrations have been measured in Jerusalem since 1977 by a chemiluminescent ozone meter. During the last five years ozone levels have increased considerably. In order to test whether this increase reflected the growth in the number of motor vehicles or was caused by atmospheric conditions, the summer data of the last five years were analyzed. Ozone levels were characterized by the daily one-hour maxima; the atmospheric factors considered were temperature, insolation and stability. A multiple regression equation was computed and a correlation coefficient r = 0.77 obtained. The yearly mean reduced ozone levels showed a definite trend, which reflected the corresponding trend in the number of motor vehicles. 相似文献