The mass entransy and its dissipation extremum principle have opened up a new direction for the mass transfer optimization. Firstly, the emergence and development process of both the mass entransy and its dissipalion ...The mass entransy and its dissipation extremum principle have opened up a new direction for the mass transfer optimization. Firstly, the emergence and development process of both the mass entransy and its dissipalion extremum principle are reviewed. Secondly, the combination of the mass entransy dissipation extremum principle and the finite-time thermodynamics for opti- mizing the mass transfer processes of one-way isothermal mass transfer, two-way isothermal equimolar mass transfer, and iso- thermal throttling and isothermal crystallization are summarized. Thirdly, the combination of the mass entransy dissipation ex- tremum principle and the constructal theory for optimizing the mass transfer processes of disc-to-point and volume-to-point problems are summarized. The scientific features of the mass entransy dissipation extremam principle are emphasized.展开更多
针对目前基于二维施工图的高桩码头施工现场控制存在工程量计算耗时长、数据处理实时性差等问题,进行了基于5D-BIM(5 Dimensions-Building Information Modeling)的高桩码头工程施工过程控制研究,通过5D-BIM系统高效搜集整理大量数据的...针对目前基于二维施工图的高桩码头施工现场控制存在工程量计算耗时长、数据处理实时性差等问题,进行了基于5D-BIM(5 Dimensions-Building Information Modeling)的高桩码头工程施工过程控制研究,通过5D-BIM系统高效搜集整理大量数据的能力、强大的交互功能,实现了快速、准确的工程成本测算以及直观的实时进度四维动态显示,为动态、实时、高效地控制高桩码头施工进度-成本提供了有效的手段。展开更多
基金supported by the National Natural Science Foundation China(Grant Nos.51176203 and 10905093)
文摘The mass entransy and its dissipation extremum principle have opened up a new direction for the mass transfer optimization. Firstly, the emergence and development process of both the mass entransy and its dissipalion extremum principle are reviewed. Secondly, the combination of the mass entransy dissipation extremum principle and the finite-time thermodynamics for opti- mizing the mass transfer processes of one-way isothermal mass transfer, two-way isothermal equimolar mass transfer, and iso- thermal throttling and isothermal crystallization are summarized. Thirdly, the combination of the mass entransy dissipation ex- tremum principle and the constructal theory for optimizing the mass transfer processes of disc-to-point and volume-to-point problems are summarized. The scientific features of the mass entransy dissipation extremam principle are emphasized.
文摘针对目前基于二维施工图的高桩码头施工现场控制存在工程量计算耗时长、数据处理实时性差等问题,进行了基于5D-BIM(5 Dimensions-Building Information Modeling)的高桩码头工程施工过程控制研究,通过5D-BIM系统高效搜集整理大量数据的能力、强大的交互功能,实现了快速、准确的工程成本测算以及直观的实时进度四维动态显示,为动态、实时、高效地控制高桩码头施工进度-成本提供了有效的手段。
