中南部夏热冬冷地区绿色建筑技术的实施

分析了夏热冬冷地区绿色建筑技术实施的难点,探讨了夏热冬冷地区绿色建筑技术应用中存在的问题,阐述了夏热冬冷地区绿色建筑技术应用的实现,以促进夏热冬冷地区绿色建筑技术的应用。     

夏热冬冷地区建筑节能门窗现状及趋势

夏热冬冷地区夏季高温潮湿,冬季阴冷潮湿,对建筑外窗既有夏季遮阳又有冬季保温的要求。文章依据夏热冬冷地区的建筑门窗应用现状,归纳分析了夏热冬冷地区建筑节能的门窗发展历程和特点,并提出了夏热冬冷地区门窗发展趋势和方向。     

夏热冬冷地区水平遮阳板深度与建筑能耗之间的关系

国内夏热冬冷地区建筑门窗能耗较大,为了探讨夏热冬冷地区合适的外窗遮阳技术,通过对夏热冬冷地区典型城市上海和浙江湖州地区典型建筑遮阳技术进行调研发现,两个地区常采用的遮阳方式为水平遮阳板。在调研基础上建立建筑能耗分析模型,采用DeST能耗模拟软件分析上海和浙江湖州地区外窗水平遮阳板深度与建筑能耗之间的关系,为夏热冬冷地区遮阳改造提供一定的指导。     

夏热冬冷地区建筑遮阳技术应用的探讨

本文通过对夏热冬冷地区建筑遮阳的意义和建筑遮阳技术的分析,对建筑遮阳各种形式的应用进行探讨和探索,为夏热冬冷地区建筑遮阳形式的选择提供了参考。     

夏热冬冷地区建筑墙面绿化新技术及植物配置研究

在对上海、杭州等夏热冬冷地区建筑墙面垂直绿化技术及植物配置现状调研的基础上,总结、归纳出目前夏热冬冷地区建筑垂直绿化新技术应用的三种形式"模块式、花槽倾斜放置式、水培式"。同时,结合夏热冬冷地区气候特点,提出了适应于夏热冬冷地区建筑墙面垂直绿化新技术的植物配置措施。     

夏热冬冷地区居住建筑暖通空调季节转换与节能设计

介绍了夏热冬冷地区居住建筑节能设计标准的修编背景,归纳总结了夏热冬冷地区居住建筑的居住模式。结合夏热冬冷地区东、西区城市室外空气热湿状态变化的分析,详细探讨了夏热冬冷地区居住建筑暖通空调季节的通风、除湿、空调和供暖运行调节。从运行调节思考暖通空调节能设计,总结了不同季节暖通空调节能设计的要点。     

谈新型墙材制品在不同气候区住宅建筑节能的做法(四)

3夏热冬冷地区住宅建筑节能工程3.1夏热冬冷地区建筑节能的条件、指标3.1.1夏热冬冷地区的建筑节能标准建筑能耗受当地气候条件、建筑热环境质量标准、     

夏热冬冷地区既有建筑节能优化改造技术研究

随着国家对建筑节能的重视和夏热冬冷地区城市改造的深入推进,既有建筑的节能改造已被提到议事日程。针对一般既有建筑的实际情况提出节能优化改造方法,并以夏热冬冷地区典型既有建筑为对象进行分析,为夏热冬冷地区城市发展中既有建筑的节能综合改造提出一些优化思路。     

夏热冬冷地区公共建筑外窗幕墙的节能研究

对于夏热冬冷地区,玻璃外窗和幕墙能耗损失在整个房屋建筑中占据很大比重,外窗幕墙的节能性直接关系到建筑的能耗和建筑节能65%的目标能否实现,同时也影响整幢建筑的运营费用.公共建筑作为夏热冬冷地区的一种建筑形式,在热工需求方面有其特殊性,探讨了夏热冬冷地区外窗节能的关键问题,提出"遮阳为主、采光合理"是夏热冬冷地区公共建筑外窗节能设计的基本设计原则,并特别指出双玻幕墙不宜在夏热冬冷地区大范围推广.     

夏热冬冷地区农村住宅节能改造研究

通过对夏热冬冷地区气候调查,从气候状况、太阳能的可利用性等方面分析了农村住宅节能改造的必要性。根据夏热冬冷地区居住建筑节能设计标准,分析了既有建筑改造和新建被动式太阳能建筑两种不同形式的节能改造措施,并对既有建筑改造和新建被动式太阳能建筑改造方案进行设计对比,分析了两种改造措施的经济性,为夏热冬冷地区住宅节能技术改造提供技术参考。研究表明:因地制宜的采用分散、局部的供暖方式更适合夏热冬冷地区,并且需根据当地居民经济状况合理选择节能改造措施。     

浅析高速公路工程招投标中的最低评标价法

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。     

Place-Making in Megaprojects in Melbourne

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.     

Pathogens in septage in Vietnam

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.     

新时期广东城市化的新特点

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。     

谈城市历史保护规划的误区

由于缺乏起码的历史文化知识,忽视历史文化遗产的保护,错误的决策导致了建设性的破坏,要加强城市保护的教育,培养合格人才。     

浅谈建筑施工临时用电安全

针对由于建筑施工临时用电安全管理的不完善和不规范操作而导致大量工伤事故频频发生的问题,为消除用电安全隐患,对建筑施工临时用电安全管理进行了归纳和分析,并提出了整改意见,以确保现场人员及电气设备的安全运行。     

浅谈我国工程项目建设成本控制存在的问题

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。     

Perchlorate exposure in lactating women in an urban community in New Jersey

Perchlorate is most widely known as a solid oxidant for missile and rocket propulsion systems although it is also present as a trace contaminant in some fertilizers. It has been detected in drinking water, fruits, and vegetables throughout New Jersey and most of the United States. At sufficiently high doses, perchlorate interferes with the uptake of iodine into the thyroid and may interfere with the development of the skeletal system and the central nervous system of infants. Therefore, it is important to quantify perchlorate in breast milk to understand potential perchlorate exposure in infants. In this study we measured perchlorate in breast milk, urine, and drinking water collected from 106 lactating mothers from Central New Jersey. Each subject was asked to provide three sets of samples over a 3-month period. The average ± SD perchlorate level in drinking water, breast milk, and urine was 0.168 ± 0.132 ng/mL (n = 253), 6.80 ± 8.76 ng/mL (n = 276), and 3.19 ± 3.64 ng/mL (3.51 ± 6.79 μg/g creatinine) (n = 273), respectively. Urinary perchlorate levels were lower than reference range values for women of reproductive age (5.16 ± 11.33 μg/g creatinine, p = 0.03), likely because of perchlorate secretion in breast milk. Drinking water perchlorate levels were ≤ 1.05 ng/mL and were not positively correlated with either breast milk or urine perchlorate levels. These findings together suggest that drinking water was not the most important perchlorate exposure source for these women. Creatinine-adjusted urine perchlorate levels were strongly correlated with breast milk perchlorate levels (r = 0.626, p = < 0.0005). Breast milk perchlorate levels in this study are consistent with widespread perchlorate exposure in lactating women and thus infants. This suggests that breast milk may be a source of exposure to perchlorate in infants.     

安康市工程施工企业未来几年人才需求调查

为了不断提高工程类专业的办学质量,对安康市区主要施工企业或项目经理部未来几年人才需求状况进行了调查,同时提出相关建议,以期培养更多的该类专业人才,满足施工企业需求。