模块燃气热水锅炉房的应用及设计

探讨了模块燃气热水锅炉的特点及适用条件。结合某工程实例,介绍了作为供暖系统热源的模块燃气热水锅炉房的主要设备及2个供暖期的天然气费用。阐述了设计模块燃气热水锅炉房时应注意的问题。     

中国高等教育体制改革对大学校园规划的影响

该文以中国高等教育体制改革为锲入点，从高等教育思想观念改革，办学体制改革、投资体制改革三方面探讨高教体制改革对我国大学校园规划的影响。     

新型排风能量回收装置的分析与研究

作者从全铝制板翅式换热器与凝结水间接蒸发冷却联合应用的试验获得的结果出发，对该换热器应用于集中空调系统的能量回收做出了计算，并且进行较为详尽的分析，计算结果表明全新风空调系统使用该能量回收装置后，可以节省机组装机容量50％，节省运行费用一半；这对需要大量新风的厂房，医院的特殊病区等有很好的节能效果；而普通的舒适性空调系统，应用该能量回收装置后也可以节省装机容量20％；这表明在集中空调系统中应用全铝制板翅式换热器既能改善室内空气品质又能回收排风能量，是集中空调系统节能和人性化行之有效的措施：     

香港环球贸易中心冷却水系统优化控制研究

提出了常规中央空调冷却水系统的优化控制策略.该控制策略是香港理工大学智能建筑研究所与香港新鸿基地产发展有限公司共同研究开发的中央空调系统系列智能优化控制策略之一.这一优化控制策略将应用在香港环球贸易中心.该方法可以自动设置系统冷却水的供水温度(即冷却塔的出水温度)以保证系统自适应于动态的工作条件并保持高效率.该方法在这一建筑及空调系统的虚拟环境下进行了测试和验证.     

建筑节能中能耗节约份额的分析

指出建筑节能的目标是减少采暖耗煤量,节煤量应由建筑物和供热系统共同承担,通过对耗热量指标进行的分析,得出建筑物和供热系统在节能50%中承担的节能比例,并指出第三步节能的重点是对建筑的节能。     

热力站无人值守的热网监控系统

热网监控系统由热力站控制单元、有线电话网数据通信系统和中控室计算机数据中心组成。分析了热力站的主要控制功能及控制方法、中控室计算机数据中心的功能,探讨了热网监控系统的优势。     

电网工程造价数据规范费用编码体系的改进研究——以南网公司为例

费用编码体系是电网工程造价数据规范中的重要组成部分。以南网公司的工程造价数据规范为例,针对费用编码体系的应用现状、存在问题以及信息化发展趋势进行梳理分析,提出现有电网工程造价数据规范费用编码体系的改进方案。通过案例验证该费用编码体系的可行性,从而为电网工程造价数据规范费用编码体系的标准化构建提供借鉴,以利于工程造价信息的交流与共享,促进编码体系的深入推广应用。     

Italian multicentre study on microbial environmental contamination in dental clinics: a pilot study

The dental practice is associated with a high risk of infections, both for patients and healthcare operators, and the environment may play an important role in the transmission of infectious diseases. A microbiological environmental investigation was carried out in six dental clinics as a pilot study for a larger multicentre study that will be performed by the Italian SItI (Society of Hygiene, Preventive Medicine and Public Health) working group "Hygiene in Dentistry". Microbial contamination of water, air and surfaces was assessed in each clinic during the five working days of the week, before and during treatments. Air and surfaces were also examined at the end of the daily activity. A wide variation was found in microbial environmental contamination, both within the participating clinics and relative to the different sampling times. Microbial water contamination in Dental Unit Water Systems (DUWS) reached values of up to 26 × 10⁴ cfu/mL (colony forming units per millilitre). P. aeruginosa was found in 33% of the sampled DUWS and Legionella spp. in 50%. A significant decrease in the Total Viable Count (TVC) was recorded during the activity. Microbial air contamination showed the highest levels during dental treatments and tended to decrease at the end of the working activity (p < 0.05). Microbial buildup on surfaces increased significantly during the working hours. As these findings point out, research on microbial environmental contamination and the related risk factors in dental clinics should be expanded and should also be based on larger collections of data, in order to provide the essential knowledge aimed at targeted preventive interventions.     

Review on smart home energy management

Presently, the increasing demand for the smart home system has necessitated a holistic approach to the problem and the need for a complete literature review. This paper discusses about the necessity for a smart home and developed an idea of the smart home energy management system with the literature review related to the energy management system scheduling, control, real-time automation, and communication.     

格栅式消能池应用于山地城市排水系统

山地城市的地形坡度较大,排水管道系统的上、下端落差大,因而需设置大量的跌水、消能构筑物,为此,在城市排水管道工程设计中引入了在水利工程上常用的格栅式消能池工艺,并介绍了格栅式消能池的工艺构造、消能机理及设计计算方法。