产业市场竞争结构分析方法及其应用

针对产业市场环境因素分析法的不足,提出运用结构分析法来解决产业市场环境分析问题,产业市场结构分析的重点是竞争关系分析,本文在阐述具体分析方法的同时给出在焊管产业的一个应用案例。     

秦淮河水环境治理的成效与举措

在分析秦淮河水质状况的基础上,阐述了秦淮河水环境改善的重要意义及已有成效,提出了秦淮河水环境改善的整治方案,重点是实施科学换水,加强控源截污,加大打捞浮藻的力度,做好河道生态修复。     

"御街"的新生——杭州市"中山南路综合保护工程"设计

中山南路是杭州颇具典型意义的居住性历史街区.基于"中山南路综合保护工程"设计实践的体会,论文分析了中山南路的背景、现状和历史价值,并依据相关理论提炼出"原汁原味、和而不同"的综合保护策略,最后对该工程的使用后评价进行了初步研究.     

基于LUCC的秦淮河流域暴雨洪水响应分析

利用CA-Markov模型预测流域2028年土地利用情况,设置3种土地利用情景(自然发展情景、林地限制情景、水田限制情景),建立研究区HEC-HMS水文模型,研究秦淮河流域高速城市化背景下土地利用变化的暴雨洪水响应机制。结果表明①HEC-HMS模型适用于研究区洪水模拟及不同土地利用情景下的洪水响应研究;②洪水规模越小,对土地利用变化的洪水响应越强;③随着流域城市化的演进,土地利用对暴雨洪水的影响程度呈增大趋势,其中自然发展情景下的增加程度最大,水田限制情景次之,林地限制情景最低。研究成果为秦淮河流域LUCC的暴雨洪水响应分析提供了新的思路,也对流域防洪规划与建设有一定的指导意义。     

益阳市秀峰公园规划设计构思

益阳市秀峰公园规划设计以结合生态主义、地脉主义和文脉主义为设计思路,布置亲水区和生态山体景观区,园林建筑设计保留观赏价值较高的建(构)筑物,并采用本地材料,新建能丰富景观的建(构)筑物。     

浅谈发展节水灌溉，保持文峪河灌区的可持续发展

文峪河灌区水资源严重短缺，用水供需矛盾日益突出，经济效益呈逐年下降趋势。为此，发展节水灌溉，发挥水资源的最大效益，对于保持灌区经济的良性运行和可持续发展是必要的，也是势在必行的。     

扬水灌区灌溉用水量浅析

通过对运城地区大中型扬水站1984－1999年亩用水量统计分析，提出大中型泵站应综合灌芡产业结构调整和实际灌溉情况，并考虑1997年的旱情，对各站进行规模复核，对有富余供水能力又有发展条件的泵站，建议进行扩大灌区规模设计，以便充分发挥现有工程设施的作用。对规划灌区，要充分考虑农村产业结构调整，及已成灌区亩毛用水量，建议灌溉建设保证率取50％。     

Driving forces and obstacles with regard to co-operation between municipal energy companies and process industries in Sweden

District heating networks can technically enable energy-related co-operations between energy-intensive industries and municipal energy companies. The most common form of co-operation is to utilise industrial waste heat as the primary energy source in district heating networks. However, another type of co-operation is to jointly own a plant that produces both process steam for the industry and hot water for district heating. In this article, eight Swedish energy co-operations are studied and the main focus is on the process leading to co-operations of this kind. Different aspects of factors that facilitate or obstruct the start up and continuous daily operation of a co-operation are discussed. The main conclusion is that while the primary reasons for the foundation of such co-operations are favourable techno-economic factors, this is not enough for a co-operation to emerge. This study highlights the importance of people with a real ambition to co-operate in both parties in the co-operations.     

从5MW THR的环境影响看低温核供热堆的厂址选择

通过分析5MW THR 正常运行和事故工况下放射性释放对环境的影响,说明低温核供热厂址可建造在城市附近,离城市边界的距离为2km,禁区半径为250m。     

Profitability of sparse district heating

The expansion of district heating into areas of low heat densities (heat sparse areas) constitutes a challenge due to the higher distribution costs. The profitability of sparse district heating has been analysed from actual investments in 74 areas with 3227 one-family houses connected to district heating between 2000 and 2004 in Göteborg, Sweden. The profitability was estimated from a probable price model, a typical marginal heat generation cost, and the investments from the actual connections made. The analysis identified factors as the linear heat density and heat sold per house explaining the main variations in profitability. The profitability analysis was concluded with a competition analysis. The main conclusion is that sparse district heating is possible when reaching low investment costs for the local distribution network and low marginal costs for the heat generation. In Sweden, the general competitiveness of sparse district heating is facilitated by the high consumption taxes for fuel oil, natural gas, and electricity. Hence, it should be more difficult to introduce sparse district heating in other countries with low energy taxes.