关于“给排水工程计量计价”课程典型工作任务确定的研究

本文通过对给排水工程计量计价课程的学习现状研究,结合实际施工企业对给排水专业人员的技术要求,结合现行工程计价模式的变化和课程体系的变化,分析确定给排水工程计量计价课程的典型工作任务。     

Project Appraisal and Capital Investment Decision Making in the Scottish Water Industry

Restructuring the Scottish water industry has changed the way in which both project appraisal and capital investment decisions are performed. This article examines the project appraisal and subsequent capital investment decision in the case of a reed bed sewage treatment scheme which is compared with a more traditional scheme. Although the capital profiles of the schemes are similar there are major differences in the revenue costs. In addition, there are potential public benefits to the reed bed scheme. A comparison is made of management mechanisms in the pre-1996 water industry with that of restructured water authorities. In the pre-1996 water industry, local authorities had a broad remit which encouraged them to value these factors, in effect an implicit social account. The creation of water authorities with narrow remits and specific performance measures, constructed a framework that does not support the integration of social accounts into the decision making process. The paper demonstrates that investment appraisal is a product of the institutional framework in which the decisions are made. As that framework changes, mechanisms and measures of accountability shift in parallel.     

骨架密实型水稳基层的应用初探

通过公路常用的水泥稳定砂砾基层施工后期出现裂缝的成因进行分析、探讨,结合星星峡至哈密段路面工程中水稳基层骨架密实型结构的应用,探讨工程施工的具体方法及控制要点。     

Power, Development, and Institutional Change: Participatory Governance in the Lower Mekong Basin

One of the central challenges for the multitude of actors concerned with the governance of transboundary river basins is how to produce meaningful mechanisms for promoting the participation of a broad cross-section of actors in resource planning and management decisions. This paper elucidates recent efforts to enhance policies of public participation within the context of governance in the Lower Mekong basin. The paper concludes that while the obstacles to institutionalizing public participation are substantial, some modicum of genuine participation, that may in time contribute to a broader project of transformation, can emerge within intergovernmental development institutions, albeit through surprising means.     

料浆水分旋转式检测头数学模型的建立

利用旋转式检测头测量料浆的水分含量时,料浆水分含量的变化可引起检测头所受的阻力矩发生变化,其转速也会发生相应改变。对实验数据进行多元线性回归处理,建立了检测头的数学模型,即料浆水分含量δ、检测头转速脉冲P及数字电压U之间的关系,通过测量检测头的转速可间接地测量料浆的水分含量或浓度。     

基于PEST模型的太阳能热水器行业宏观环境分析

低碳发展是世界经济社会发展的趋势。新能源产业,尤其是太阳能行业发展迎来重大机遇。同时,太阳能行业发展日趋成熟,竞争日益激烈,各企业都面临着严峻挑战。文章介绍了PEST模型的基本概念,并深入研究了太阳能热水器行业发展的宏观环境问题。综合运用PEST模型,采取定量分析与定性描述相结合的方法,对太阳能热水器行业的发展现状、面临的政治环境、经济环境、社会环境和科学技术环境等进行了详细分析。最后对太阳能热水器行业的发展前景进行了预测。     

浅析影响水稳混合料质量的因素及施工过程中的质量控制

通过对HAL1标的水稳碎石基层的施工,笔者对影响水稳碎石混合料质量的因素及施工过程中的质量控制作了初步的总结。同时从混合料级配、水泥剂量、含水量、压实度、养护及钻芯等几方面,对水稳混合料及施工过程中的质量控制提出了几点建议。     

Bringing competition to urban water supply*

This paper proposes a market‐based reform that would introduce competition into the provision of urban water. This proposal calls for a decoupling of infrastructure control and ownership of water whereby the property rights to water would be transferred to private hands. The proposal involves periodically allocation (e.g. by auction) of existing water stock held in urban catchments to virtual suppliers who then compete in providing bulk water. This change when coupled with effective third party access and retail competition would lead to a competitive market for the provision of urban water. The approach aims to address concerns over inefficient pricing and infrastructure provision under the current arrangement.     

浅谈村镇集中供水设计的几点经验

文章重点分析了如何进行水源点选取、水处理工艺的选择、水厂总平面布置以及高程竖向布置等方面内容。对如何优选相应的设计方案提出了见解，以供参考。     

中国城市水业改革的战略方向

中国城市水业改革的实质是通过重新构建制度安排,强化水业服务供给链上各角色之间的责任关系,以获得整个行业上的治理创新。中国城市水业改革的战略方向应当是分开政府目前同时作为政策制定者、监管者和服务提供者的角色,增加服务受益者的声音,并增强四角色之间的责任关系。