创意与城市

文章从创意城市的基本含义入手,着重分析在当前城市发展战略中文化创意越来越处于核心地位的原因,以及文化创意与城市空间存在着的一种互动关系,进而解释创意城市建设中的重要环节。     

Sustaining Rural Landscapes: the role of integrated tourism

The aim of a European Union-funded research project entitled 'Supporting and Promoting Integrated Tourism in Europe's Lagging Rural Regions' (SPRITE) is to analyse and develop the potential for better-integrated tourism in the rural landscapes of Europe. Integrated tourism can be defined as that which is explicitly linked to the localities in which it takes place and, in practical terms, has clear connections with local resources, activities, products, production and service industries, and a participatory local community. Enhancing the sustainable economic potential of rural landscapes requires partnerships among rural people and the sustainable yet productive use of rural resources. A 'culture economy' approach to integrated tourism is proposed, which emphasizes the importance of local identity, the strategic commodification of resources and of place, and the importance of extra-local forces in enabling local activities. It is suggested that this approach may represent a shift beyond more traditional approaches to rural development.     

广州某建筑的玻璃幕墙节能改造措施及其经济性分析

以广州某典型的玻璃幕墙建筑——某高校图书馆为研究对象,针对其夏季供冷能耗高的现状,利用建筑能耗模拟分析软件DeST-c,通过构建合理的建筑模型,分析其能耗大的原因;提出3种节能改造方案,对其节能潜力和经济性进行了计算分析。研究结果可为夏热冬暖地区玻璃幕墙建筑的节能改造提供参考。     

赣州市发展低碳经济的SWOT分析与策略研究

如今全球气候变暖,极端天气频发。低碳经济因其为低能耗、低污染、低排放的经济发展模式而倍受关注。本文运用SWOT分析,找出了赣州市发展低碳经济的优势与劣势、机遇及威胁。通过分析,提出了具有赣州特色的低碳发展策略。     

Deposit modeling and resource estimation of stratiform massive sulphide deposits in Canada

The frequency distributions of grades and tonnages of Cu, Pb, Zn, Ag, and Au in Canadian stratiform massive sulphide deposits can be approximated by lognormal distributions. Lack of significant statistical correlation between grade and tonnage in the discovered economic deposits suggests statistical independence between these two variables. Grade-tonnage curves exhibit several forms that include exponential relationships. The curves may characterize specific geological environments containing specific mineral deposits, and may be used to estimate the subeconomic resources in the environment.     

中国特色的低碳经济、能源、电力之路初探

中国作为发展中大国,探索一条适合我国国情的低碳经济-能源-电力的发展路径是至关重要的。在过去30年中,我国在节能方面取得了巨大成就,可以概括为具有中国特色的能源使用管理,它是低碳能源的重要组成部分。综合资源战略规划与智能电网构成低碳电力。它们将在中国的低碳经济中发挥重要作用。本文结合中国国情,在低碳经济(低碳能源与低碳电力)的模型基础上,展望了未来20年我国经济发展前景、能源的需求、能源消费结构、非化石能源的比重、能耗-电耗水平、CO2排放强度,以及经济发展对电力的需求、电源的结构、清洁能源的发电比重,能效电厂及其发电量(终端电力用户节约的电量)等,分析了今后发展应关注的问题。     

燃机选型分析

燃机发电作为占世界发电量1／5的发电方式,在世界工业发展中占据不可替代的地位,E级、F级燃机为中国燃机的主力机级,现对两种机级的性能、经济性以及电厂选级进行对比,指出无论从燃机本身的性能,还是燃气一蒸汽联合循环的性能,F级燃机均优于E级燃机,并介绍现今世界前沿的G级燃机一些睛况。     

汽油机燃用E10含水乙醇/汽油的试验研究

在高原地区开展了燃用含水乙醇／汽油混合燃料的试验研究。在汽油机上进行了纯汽油与掺比为10％含水乙醇（95％浓度）／汽油混合燃料的动力性、经济性和排放性能的对比试验。试验结果表明,E10混合燃料的稳定性良好;燃用E10含水乙醇／汽油混合燃料后,能保持发动机的原机动力性;在较低转速内,有效燃油消耗率有一定的上升,随着转速和负荷的提高,有效燃油消耗率的上升状况得到较好的改善;当量燃油消耗率明显低于原机水平;有效热效率得到不同程度的提高;怠速工况的CH和CO的排放有所改善。     

Particle swarm optimization for redundant building cooling heating and power system

An optimal and redundant building cooling heating and power (BCHP) system can yield economical savings, but more importantly can save energy as well as reduce the emission of pollutants. This paper presents the energy flow analysis of the conventional separation production (SP) system and the redundant BCHP system. Four decision variables (the capacity of power generation unit (PGU), the capacity of heat storage tank, the on–off coefficient of PGU and the ratio of electric cooling to cool load) to be optimized are selected in consideration of the design and the operation strategy of BCHP system. An objective function to simultaneously measure the energetic, economical and environmental benefits achieved by BCHP system in comparison to SP system is constructed and maximized. Particle swarm optimization algorithm (PSOA) is employed to search the optimal solutions. A case study of BCHP system with thermal storage unit and hybrid cooling system is presented to ascertain the feasibility and validity of the optimization method.