基于社会网络分析的综合能源服务市场利益相关者关系研究

当前形势下,综合能源服务事业的发展不仅需要国家和政府制定的各项方针和政策,更依赖于电力企业、互联网公司、科研机构、能源设备供应商、金融公司等相互配合、共同促进。首先选取上述利益相关者类别中的成员为评价对象,进行专家咨询与实地考察。随后对调查数据进行筛选和二次处理,运用社会网络分析软件构建一个综合能源服务市场模型,在中心度、网络密度以及凝聚子群3方面对其进行分析,结果显示了网络中的核心成员与各其他成员间的紧密程度及小团体情况。最后对未来综合能源服务市场发展进行了展望。     

电力营销信息化管理策略

随着市场经济的快速发展,我国电力经营体制的转变和电力供需矛盾逐渐缓的形势下,电力部门正逐步推行电力的信息化管理以来适应国家的可持续发展战略。本文通过分析我国电力部门信息化管理的现状,结合影响信息化管理的存在的问题,对电力营销信息化管理提出一些可行的管理建议与策略。     

A Novel Single-Atom Electrocatalyst Ti1/rGO for Efficient Cathodic Reduction in Hybrid Photovoltaics

Single-atom catalysts (SACs) are a frontier research topic in the catalysis community. Carbon materials decorated with atomically dispersed Ti are theoretically predicted with many attractive applications. However, such material has not been achieved so far. Herein, a Ti-based SAC, consisting of isolated Ti anchored by oxygen atoms on reduced graphene oxide (rGO) (termed as Ti₁/rGO), is successfully synthesized. The structure of Ti₁/rGO is characterized by high-angle annular dark-field scanning transmission electron microscopy and X-ray absorption fine structure spectroscopy, being determined to have a five coordinated local structure TiO₅. When serving as non-Pt cathode material in dye-sensitized solar cells (DSCs), Ti₁/rGO exhibits high electrocatalytic activity toward the tri-iodide reduction reaction. The power conversion efficiency of DSCs based on Ti₁/rGO is comparable to that using conventional Pt cathode. The unique structure of TiO₅ moieties and the crucial role of atomically dispersed Ti in Ti₁/rGO are well understood by experiments and density functional theory calculations. This emerging material shows potential applications in energy conversion and storage devices.     

Heart rate arousal and excitement in gambling: Winners versus losers.

People sometimes claim they gamble for excitement rather than money. The authors examined in a laboratory analog whether excitement is generated by the expectancy of winning money. Eighty male undergraduate students watched a videotaped horse race with an exciting neck-to-neck finish. Half bet $1 for a chance of winning $7 if they picked the winning horse; the other half predicted the winning horse without wagering. Winning and losing were experimentally manipulated. Participants with a chance to win money showed greater heart rate (HR) elevations and reported more subjective excitement while watching the race compared with those who did not wager. Of students who wagered, the winners showed higher HRs after the end of the race than did those who lost, even though differences in subjective excitement were not statistically significant. The findings suggest that the expectancy of winning money is an important contributing factor to the excitement associated with gambling. (PsycINFO Database Record (c) 2010 APA, all rights reserved)