以土地综合整治助推新型城镇化发展--谈上海市土地整治工作的定位与战略思考

在十八届三中全会“新型城镇化”建设要求下,上海以生态文明建设提升“全球城市”国际竞争力、以城乡统筹内涵增长模式破解土地资源瓶颈、以建立农村地区“造血机制”引导全民共享的新型城镇化建设,顺应上海城市转型之势,提出土地整治工作定位转变的战略思路,以郊野单元规划为载体,开展郊野地区规划土地网格化精细管理,探索一条符合上海实际、具有上海特色、以土地综合整治助力土地节约集约利用和城乡一体化的转型发展之路。     

CyDER – an FMI-based co-simulation platform for distributed energy resources

The increased integration of distributed energy resources (DERs) is bringing a number of challenges to the power grid. These include reverse power flows in distribution systems and potentially transmission systems and grid stability. So far, specialized tools have been developed to capture some of the impact of DERs at the distribution level. However, distribution system operators lack visibility into the overall system conditions. Furthermore, the impact of increasing DERs is not limited to the distribution level but also influences the transmission grid. To support the planning and operation of the grid, we developed a co-simulation platform called CyDER (A Cyber Physical Co-simulation Platform for Distributed Energy Resources in Smart Grids) that integrates various domain-specific simulation tools. CyDER is based on the functional mock-up interface standard. This paper gives an overview of CyDER and demonstrates its use based on two applications.     

舟山墙体节能现状与建筑节能前景分析

分析了舟山地理位置的气候特点和舟山建筑的节能现状。鉴于目前在舟山墙体节能在现场原材料、施工过程等方面存在的问题,可以考虑利用舟山特殊的地理位置所拥有的自身优势,建筑工程因地制宜进行保温节能,充分利用自然风和可再生资源、合理遮阳、减少人工照明和改善窗户节能等措施改善舟山的建筑节能。     

基于综合灰关联序模型的残差门控循环神经网络位标器零部件选配

位标器漂移性能是决定精确制导武器跟踪能力与制导精度的关键因素之一,通过位标器零部件选配可改善位标器漂移性能。针对位标器零部件一次选配成功率低的问题,提出综合灰关联序（CGRO）模型并对影响位标器零部件选配的装配参数进行关联分析,得到了影响位标器零部件选配的关键装配参数;建立残差门控循环神经网络（RNGRU）模型,实现了位标器零部件的选配。以影响位标器漂移性能的陀螺转子与调漂螺钉装配为例,应用CGRO模型对陀螺转子的装配参数进行关联分析,得到了影响两者装配的关键装配参数;基于RNGRU模型实现了对调漂螺钉质量的回归预测。实验结果表明,所提方法能够实现位标器零部件的选配,其预测精度优于传统门控循环神经网络。     

[轨道交通运维技术]风险视角下的动车组部件多级非完美维修策略

为了降低动车组部件在一个寿命周期内的维修总成本,以动车组五级修程时需要更换的部件为研究对象,基于现行的分级检修制度,提出一种动车组部件多级非完美预防性维修策略。以故障对动车组运行安全和对动车组晚点的影响以及故障维修难易程度作为故障风险的评价指标,使用层次分析法和评分法量化评价部件的故障风险。将动车组部件非完美维修方式划分为初级维修、中级维修和高级维修三个级别,克服了以往模型中非完美维修方式单一、忽视实际维修中普遍采用多级非完美维修方式的不足。算例仿真结果表明,提出的维修策略可使动车组部件在一个寿命周期内保持更高的可靠度水平且总成本也有所减少。     

650MW核电机组汽轮机超速保护系统性能及重要变更改造分析

本文详细介绍了汽轮机超速的原因及危害,对中核运行秦二厂650MW扩建机组超速保护性能进行了全面分析。针对《增加超速跳机和手动打闸硬件回路》和《增加机械超速动作或就地打闸监视》的变更改造,进行了较为详细的讨论及列出了相关优化建议,并针对未来650MW扩建机组汽轮机组取消机械式危急遮断装置的可行性提出了简单分析和合理化建议。本文旨在结合各项变更改造分析,提高汽轮机超速保护的可靠性,为机组的安全稳定提供保障。     

The Ten‐Year Plan for the port of Antwerp (1956–1965): a linear city along the river

The Ten‐Year Plan for the port of Antwerp (1956–1965) funded the expansion of the port’s infrastructure over a 10‐year period. Strictly, a national government‐funded infrastructure programme for the construction of a set of canal docks, the programme laid the basis for a broader urbanization of the north‐eastern Antwerp metropolitan region. The importance of the operation lies primarily in its role as an instrument of urbanization rather than in the improvement of the transport and transshipment capacity of the port because it opened up a large territory to industrial settlement. The linear layout of the project along the Scheldt River led planners to conceive the further urbanization of the adjacent region on a linear city model, with satellite communities attached to the industrial and infrastructural strip. Compared with the contemporary Europoort plan for the port of Rotterdam, where several planning agencies implemented conflicting plans for functionally distinct infrastructures and the construction of a new town, the success of the Antwerp approach resides in the flexible and strategic implementation of the project as a co‐production between various authorities and private parties.     

Design strategy for low-energy ventilation and cooling within an urban heat island

Natural ventilation is a proven strategy for maintaining thermal comfort in non-domestic buildings in the UK. The energy consumption and thus the carbon dioxide emissions that contribute to global warming are lower than in conventional air-conditioned buildings. However, the ambient temperatures in the UK have risen over the last decade and new climatic data for use in the design of naturally ventilated buildings has been published. Using these data and dynamic thermal modelling, it is shown that passive stack ventilation alone was unlikely to maintain summertime comfort in a proposed University College London building within an urban heat island. The stack ventilation strategy was evolved by the introduction of passive downdraught cooling. This low-energy technique enables cooled air to be distributed throughout the building without mechanical assistance. The underlying principles of the technique were explored using physical models and the anticipated performance predicted using thermal modelling. The architectural integration is illustrated and the control strategy described. The resulting building is believed to be the first large-scale application of the passive downdraught cooling technique; construction began in late 2003.     

生长的“竹伞”——参数化设计的一次尝试

本文从空间组织、单元体生成、材料与构造方式以及置入场地的形态控制等方面,详细介绍了南京大学建筑与城市规划学院研究生课程“数字建筑”的设计作品——“竹伞”,并对参数化生成的设计方法进行了探讨与总结。     

浅析建筑工程不同计价合同的风险分担

本文对工程建设合同的类型进行了简单的描述,阐述了工程合同进行风险管理的依据,通过合同类型的定义对固定总价合同、单价合同和成本加酬金合同进行了辨析,得出在三种不同的计价合同下业主和承包商的风险分担,并在风险承担者、对工程的管理、工程变更的可能性、对工程结算的难易等方面对固定总价和、单价合同和成本加酬金合同三种计价合同进行阐述并给出了各自的应用范围。