Give constrains of costs and technology in analysis,actual practice of 2D FEM is widely popular and demanded.In order to take advantage of 2D FEM to simulate 3D stress state,the concept of stress releasing ratio was g...Give constrains of costs and technology in analysis,actual practice of 2D FEM is widely popular and demanded.In order to take advantage of 2D FEM to simulate 3D stress state,the concept of stress releasing ratio was generally introduced to represent the 3D constraint effect.For example,the simulation analysis of tunnel excavation is based on the measured actual deformation to provide stress releasing ratio.In the engi- neering of open excavation,the construction is,most of the case,targeted on alluvial de- posit with relatively soft stratum.However,the 2D FEM simulation lacks a clear and ra- tional basis in how to represent the effects of 3D constraint.Thus,in order to investigate the problem above,the author analyzed same engineering using both 2D and 3D individu- ally,and compared the corresponding results.Based on the 3D analysis,factors including the relationship between the model's scope,stress releasing ratio,and construction condi- tion of 2D analysis were also examined.展开更多
The study of tourism destination images is of great significance in the tourism discipline.Tourism user-generated content(UGC),i.e.,the feedback on tourism websites,provides rich information for constructing a destina...The study of tourism destination images is of great significance in the tourism discipline.Tourism user-generated content(UGC),i.e.,the feedback on tourism websites,provides rich information for constructing a destination image.However,it is difficult for tourism researchers to obtain a relatively complete and intuitive destination image due to the unintuitive destination image display,the significant variance in departure time and data length,and the destination type in UGC.We propose TDIVis,a carefully designed visual analytics system,aimed at obtaining a relatively comprehensive destination image.Specifically,a keyword-based sentiment visualization method is proposed to associate the cognitive image with the emotional image,and by this method,both time evolution analysis and classification analysis are considered;a multi-attribute association double sequence visualization method is proposed to associate two different types of text sequences and provide a dynamic visual encoding interaction method for the multi-attribute characteristics of sequences.The effectiveness and usability of TDIVis are demonstrated through four cases and a user study.展开更多
文摘Give constrains of costs and technology in analysis,actual practice of 2D FEM is widely popular and demanded.In order to take advantage of 2D FEM to simulate 3D stress state,the concept of stress releasing ratio was generally introduced to represent the 3D constraint effect.For example,the simulation analysis of tunnel excavation is based on the measured actual deformation to provide stress releasing ratio.In the engi- neering of open excavation,the construction is,most of the case,targeted on alluvial de- posit with relatively soft stratum.However,the 2D FEM simulation lacks a clear and ra- tional basis in how to represent the effects of 3D constraint.Thus,in order to investigate the problem above,the author analyzed same engineering using both 2D and 3D individu- ally,and compared the corresponding results.Based on the 3D analysis,factors including the relationship between the model's scope,stress releasing ratio,and construction condi- tion of 2D analysis were also examined.
基金Project supported by the Science&Technology Department of Sichuan Province,China(No.2018GZ0171)the Chengdu Science and Technology Bureau,China(No.2015-HM01-00484-SF)。
文摘The study of tourism destination images is of great significance in the tourism discipline.Tourism user-generated content(UGC),i.e.,the feedback on tourism websites,provides rich information for constructing a destination image.However,it is difficult for tourism researchers to obtain a relatively complete and intuitive destination image due to the unintuitive destination image display,the significant variance in departure time and data length,and the destination type in UGC.We propose TDIVis,a carefully designed visual analytics system,aimed at obtaining a relatively comprehensive destination image.Specifically,a keyword-based sentiment visualization method is proposed to associate the cognitive image with the emotional image,and by this method,both time evolution analysis and classification analysis are considered;a multi-attribute association double sequence visualization method is proposed to associate two different types of text sequences and provide a dynamic visual encoding interaction method for the multi-attribute characteristics of sequences.The effectiveness and usability of TDIVis are demonstrated through four cases and a user study.
