西藏泽当大桥景观设计

以西藏山南市泽当大桥为背景,从民族文化、区域环境、影响因素、桥型等方面分析了景观设计的基本思路,提炼出设计理念并拟定了3个方案,进而详细论述了方案的结构设计、施工工序,并对本工程具体实施情况进行了简要介绍。     

综合管线过桥方案探讨

简要叙述了市政管线过河的常见处理方式,并以实例论述了市政综合管线通过桥梁的方法.通过定性对比得出在该种情况下采取桥梁加宽,在桥面上设置管廊的方案为最优方案的结论.     

Improved Real-Coded Genetic Algorithm Solution for Unit Commitment Problem Considering Energy Saving and Emission Reduction Demands

Unit commitment(UC), as a typical optimization problem in electric power system, faces new challenges as energy saving and emission reduction get more and more important in the way to a more environmentally friendly society. To meet these challenges, we propose a UC model considering energy saving and emission reduction. By using real-number coding method, swap-window and hill-climbing operators, we present an improved real-coded genetic algorithm(IRGA) for UC. Compared with other algorithms approach to the proposed UC problem, the IRGA solution shows an improvement in effectiveness and computational time.     

分析BOT高速公路项目建设管理应注意的几个问题

高速公路具有对国民经济和地方经济推动的作用,榆佳高速公路就是应经济发展需要而兴建的.近年来,国家公用基础设施建设呈现投资主体多元化的趋势,榆佳高速公路采用的是BOT模式,本文以榆佳高速公路为基点,论述BOT高速公路建设管理中应注意的问题.