Movable roof insulation in hot climates

This paper presents the results of experiments on the effect of a system of movable insulation – with and without a roof pond – on temperature and heat flow at the ceiling surfaces of air conditioned and unconditioned rooms in buildings roofed with thick reinforced concrete which are exposed to extremes of hot and cold weather. Results indicate that there is considerable merit in adopting such a system, particularly in hot, dry conditions, in addition to the limited benefits of harnessing solar energy in winter conditions.

The experiments were carried out at the Central Building Research Institute, Roorkee, UP, India. Mr Rao is at present working as an associate professor in the Department of Building Science, Faculty of Architecture, University of Singapore.     

Soil metal concentrations and toxicity: Associations with distances to industrial facilities and implications for human health

Urban and rural areas may have different levels of environmental contamination and different potential sources of exposure. Many metals, i.e., arsenic (As), lead (Pb), and mercury (Hg), have well-documented negative neurological effects, and the developing fetus and young children are particularly at risk. Using a database of mother and child pairs, three areas were identified: a rural area with no increased prevalence of mental retardation and developmental delay (MR/DD) (Area A), and a rural area (Area B) and an urban area (Area C) with significantly higher prevalence of MR/DD in children as compared to the state-wide average. Areas were mapped and surface soil samples were collected from nodes of a uniform grid. Samples were analyzed for As, barium (Ba), beryllium (Be), chromium (Cr), copper (Cu), Pb, manganese (Mn), nickel (Ni), and Hg concentrations and for soil toxicity, and correlated to identify potential common sources. ArcGIS^® was used to determine distances between sample locations and industrial facilities, which were correlated with both metal concentrations and soil toxicity. Results indicated that all metal concentrations (except Be and Hg) in Area C were significantly greater than those in Areas A and B (p ≤ 0.0001) and that Area C had fewer correlations between metals suggesting more varied sources of metals than in rural areas. Area C also had a large number of facilities whose distances were significantly correlated with metals, particularly Cr (maximum r = 0.33; p = 0.0002), and with soil toxicity (maximum r = 0.25; p = 0.007) over a large spatial scale. Arsenic was not associated with distance to any facility and may have a different anthropogenic, or natural source. In contrast to Area C, both rural areas had lower concentrations of metals, lower soil toxicity, and a small number of facilities with significant associations between distance and soil metals.     

大型保障性住房社区规划设计实践——南京迈皋桥创业园丁家庄经济适用房社区

通过丁家庄经济适用房的规划设计实践,探索大型保障房社区持之有效的住宅规划模式,结合绿色建筑的评价标准,打造可持续发展的节能省地型社区。＂街坊式＂布局在大型社区中的成功运用,从而解决了不同人群的混居问题,解决了当地的就业和安居的平衡。     

浅谈勘察设计中的征地拆迁调查工作

在工作中坚持以人为本的方针，征地拆迁调查工作要根据工程项目实际需要分阶段灵活安排，思路要敏锐，观念要跟上国家宏观产业调控的需求。     

对旅游游乐建筑的一些认识

现代旅游游乐活动的发展,对旅游建筑提出了更多更新的要求。本文针对目前国内旅游游乐建筑进行评析。提出自己的认识,观点。我国的风景旅游环境的人文历史与自然因素紧密结合为特色,创造性地利用这一有利条件,以人与自然的辩证关系为依据,是形成具有我国自己特色的旅游游乐环境的关键所在。     

公共环境产品系统设计概论

本文以系统科学思想，对城市公共环境产品设计问题进行初步的理论上的概括，阐明公共环境产品设计的一般科学思维方式及有关原则。同时，也就当前设计的重点与方向提出某些看法。     

快速可重构制造系统的设施规划与物流分析

快速可重构制造系统是能随市场需求变化实现生产系统快速重构的制造系统。为使企业物流更好地支持制造系统重构，在规划设计的各个环节应突出通用性、可拓扑性。基于设施规划设计对制造系统的工厂布置、车间划分以及与之相关的车间建筑、布置、物料输送设备等方面进行了探讨。     

设施农业示范区灌溉及自动控制系统

介绍了设施农业示范区微灌系统的主要型式、示范区滴灌系统的设计与安装;阐述了示范区大棚内环境自动控制系统的设计与分析。     

高校仪器设备利用效果的模糊综合评价

从影响高校仪器设备利用效果的因素出发,通过运用集合、权重、模糊数学等方法,初步构建了高校仪器设备利用效果的指标体系,同时提出对高校仪器设备利用效果进行综合评价的方法,为学校客观评价仪器利用效果提供了一种科学与实用的方法.