Base on the related researches at home and abroad, using systematic analysis principle mathematical modeling techniques, analysis model of organ collection properties, root structure model, mechanism model of spatial ...Base on the related researches at home and abroad, using systematic analysis principle mathematical modeling techniques, analysis model of organ collection properties, root structure model, mechanism model of spatial form of organs and dynamic model of plant topological structure in line with the growth of long-staple cotton are constructed, and three-dimensional dynamic simulation of long-staple cotton in southern Xinjiang is finally achieved. The system can promote people＇s understanding and perception on growth process of long-staple cotton in southern Xinjiang, which provides support for analysis of relationship between structure and function of long-staple cotton, design of ideal plant and regulation of growth model.展开更多
Extensibility and attainability of topology optimization are discussed by investigating a variety of simultaneous topology opti-mization methods extended from the standard formulation.First,the state of the art is hig...Extensibility and attainability of topology optimization are discussed by investigating a variety of simultaneous topology opti-mization methods extended from the standard formulation.First,the state of the art is highlighted through systematic classification of developed methods,such as simultaneous topology optimizations of microstructure and macrostructure,structure and supports,structure and design-dependent loads,structure and locations of involved components.Second,some recent results about simultaneous topology optimization of structure and applied loads are presented.It is shown that the simultaneous topology optimization is an integrated methodology that extends the concept of standard topology optimization in the sense of systematic design.The presence of more than one kind of design variable of different nature makes the optimization problem complex but enlarges the design space to attain the optimization.展开更多
基金Supported by Regional Natural Science Foundation of China(61062007)~~
文摘Base on the related researches at home and abroad, using systematic analysis principle mathematical modeling techniques, analysis model of organ collection properties, root structure model, mechanism model of spatial form of organs and dynamic model of plant topological structure in line with the growth of long-staple cotton are constructed, and three-dimensional dynamic simulation of long-staple cotton in southern Xinjiang is finally achieved. The system can promote people＇s understanding and perception on growth process of long-staple cotton in southern Xinjiang, which provides support for analysis of relationship between structure and function of long-staple cotton, design of ideal plant and regulation of growth model.
基金supported by the National Natural Science Foundation of China(Grant Nos.51275424,51221001)the National Basic Research Program of China("973"Project)(Grant No.2011CB610304)+1 种基金the Research Fund for the Doctoral Program of Higher Education of China(Grant No.20126102130003)the NWPU Foundation for Fundamental Research(Grant No.NPU-FFR-201001)
文摘Extensibility and attainability of topology optimization are discussed by investigating a variety of simultaneous topology opti-mization methods extended from the standard formulation.First,the state of the art is highlighted through systematic classification of developed methods,such as simultaneous topology optimizations of microstructure and macrostructure,structure and supports,structure and design-dependent loads,structure and locations of involved components.Second,some recent results about simultaneous topology optimization of structure and applied loads are presented.It is shown that the simultaneous topology optimization is an integrated methodology that extends the concept of standard topology optimization in the sense of systematic design.The presence of more than one kind of design variable of different nature makes the optimization problem complex but enlarges the design space to attain the optimization.
