Life cycle cost and energy analysis of a Net Zero Energy House with solar combisystem

The Net Zero Energy House (NZEH) presented in this paper is an energy efficient house that uses available solar technologies to generate at least as much primary energy as the house uses over the course of the year. The computer simulation results show that it is technically feasible to reach the goal of NZEH in the cold climate of Montreal. In terms of the life cycle energy use, which considers the operating and embodied energy of the house, the energy payback time is 8.4–8.7 years, when the NZEH is compared with an average house that complies with the provincial code. The energy payback ratio of the combisystem is 3.5–3.8 compared with the heating system of conventional house. By converting solar energy, the combisystem supplies at least 3.5 times more energy than the energy invested for manufacturing and shipping the system. The life cycle cost analysis of the NZEH shows, however, that due to the high cost of the solar technologies and the low cost of electricity in Montreal, financial payback is never achieved.     

基于多因素VAR分析的上海GDP预测

以上海市为例,利用统计数据,选择6个重要的经济指标作为影响因素,建立了GDP的多因素动态系统VAR预测模型,分析显示模型显著性高,预测结果的相对误差小,有一定的实际应用价值.     

Main, mediating, and moderating effects of social support on the well-being of survivors of intimate partner violence across 2 years.

Intimate partner violence is a serious and pervasive social problem with deleterious consequences for survivors’ well-being. The current study involved interviewing 160 survivors 6 times over 2 years to examine the role of social support in explaining or buffering these negative psychological consequences. The authors examined both between- and within-persons variability to explore women’s trajectories regarding their experiences of abuse, social support, depression, and quality of life (QOL). Findings revealed the complex role of social support on women’s well-being. Evidence was found for main, mediating, and moderating effects of social support on women’s well-being. First, social support was positively related to QOL and negatively related to depression. Social support also partially explained the effect of baseline level and subsequent change in physical abuse on QOL and depression over time, partially mediated the effects of change in psychological abuse, and moderated the impact of abuse on QOL. The buffering effects of social support were strongest at lower levels of abuse. Implications for future research and intervention are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Comprehensive evaluation of a CO2‐capturing high‐efficiency power generation system for utilizing waste heat from factories

It is becoming more important to realize CO₂‐capturing power generation systems (PGSs) for drastically decreasing an amount of CO₂ emission into the atmosphere. However, net power generation efficiency (NPGE) of a CO₂‐capturing system has been considered to be greatly deteriorated, since capturing CO₂ requires extra energy. This paper proposes a new CO₂‐capturing PGS that has a high‐efficient NPGE by utilizing waste heat from factories. As an example of a waste heat, exhaust gas with temperature 200°C from refuse incinerator plants is adopted. In the proposed system, the temperature of saturated steam produced by utilizing the waste heat is raised by combusting fuel with the use of pure oxygen in a combustor, and is used as the main working fluid of a gas turbine PGS. It is estimated that the proposed system has a fuel‐to‐electricity NPGE of 59.3%, when turbine inlet temperature (TIT) is assumed to be 1000°C. The economics of the proposed system is also evaluated and the CO₂ reduction cost is estimated to be small; 4.16 U.S. $ t⁻¹ CO₂ compared with 32.1 U.S. $ t⁻¹ CO₂ for a conventional steam turbine PGS. It is shown that CO₂‐capturing is not cost consuming but becomes to be profitable owing to improved power generation characteristics, when its TIT is increased from 1000 to 1200°C. Copyright © 2009 John Wiley & Sons, Ltd.     

兴建垃圾电厂基本原则的探讨

垃圾发电是一种新兴的发电形式。使用垃圾焚化发电,是处理城市垃圾和实现垃圾开发利用的有效途径。根据垃圾电厂的特殊性和公益性原则,兴建垃圾电厂所遵循的原则与常规发电厂有所区别,主要为厂址选择、设备选择和工程造价原则。降低工程造价,运行时加强监督和实现达标排放是兴建垃圾电厂应遵循的原则。结合广东省的几个垃圾电厂实例的分析,说明了兴建垃圾电厂时,还应遵循国家环境保护标准,使垃圾电厂保持良性发展,达到经济效益与环境效益的统一。     

双铝电凝聚气浮强化一级处理城镇生活污水

研究双铝电极电凝聚气浮强化一级处理城市污水的有效性和可行性．进行电解时间、电流密度、电解质等影响因素的静态试验，并通过动态试验，分析水力停留时间、电流密度、电流波形的影响，研究有机污染物去除特性．试验结果表明：COD、SS及色度去除率分别在75．11％、80％和80％以上，其COD、色度可达城镇二级污水处理厂二级标准，对处理小规模、分散性的城镇生活污水具有一定的推广价值．     

The complex relationship between dependency and domestic violence: Converging psychological factors and social forces.

Research indicates that economic dependency in women and emotional dependency in men independently contribute to domestic-partner abuse risk and that high levels of emotional dependency in an abused partner may reduce the likelihood that the victimized person will terminate the relationship. An analysis of psychological factors and social forces that contribute to domestic violence suggests that multimodal intervention strategies are needed to combat this complex problem. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

试析我国积极的财政政策及其效果

2001年中国经济之所以能一枝独秀，最主要的原因是我国政府采用积极的财政政策，坚持扩大内需的方针，坚持结构调整和产业调整，坚持稳健的货币政策，就我国政府采用的积极财政政策及其效果作相应的分析。     

国有商业银行人力资源开发与管理探讨

我国加入世贸组织以后金融机构之间的竞争最根本的是人才竞争。国有商业银行必须针对人力资源开发与管理方面存在的问题 ,采取各种切实可行的措施 ,加强人力资源开发与管理 ,提高人力资源素质 ,优化人力资源结构 ,挖掘人力资源潜力 ,发挥人力资源的最大效用 ,以适应金融业务发展和同业市场竞争的需要     

宽体节能隧道窑的国产化研究

通过时从国外引进的陶瓷隧道窑的国产化研究，开发出了一条既不同于我国传统窑又区别于引进窑，具有我国特点的新型宽体节能隧道窑，走出了一条引进隧道窑国产化的新路子．