Agent-oriented approach is increasingly showing its magic power in a diversity of fields, specifically, ubiquitous computing and smart environment. Meanwhile, it is considered the next creative issue is to interconnec...Agent-oriented approach is increasingly showing its magic power in a diversity of fields, specifically, ubiquitous computing and smart environment. Meanwhile, it is considered the next creative issue is to interconnect and integrate isolated smart spaces in real world together into a higher level space known as a hyperspace. In this paper, an agent-oriented architecture, which involves the techniques of mobile agents, middleware, and embedded artificial intelligence, is proposed. Detailed implementations describe our efforts on the design of terminal device, user interface, agents, and AI展开更多
Thermally-induced flow instabilities are a critical issue in multi-channel regenerative cooling systems.In particular,the interactions between Density-Wave Oscillations(DWO)and Flow Maldistribution(FMD)can result in c...Thermally-induced flow instabilities are a critical issue in multi-channel regenerative cooling systems.In particular,the interactions between Density-Wave Oscillations(DWO)and Flow Maldistribution(FMD)can result in complex and disastrous instability phenomena.This study investigates the instability behaviors of hydrocarbon fluid in a four-channel system with a constant heat flux ratio using both frequency-and time-domain methods.As the heat flux increases,the in-tube flow sequentially destabilizes in each channel and converges to new equilibrium states,leading to the emergence of FMD phenomena.This also causes the system eigenvalue to change repeatedly from negative to positive rather than increasing monotonically.Additionally,the system eigenvalues are between those of the two most unstable channels,indicating that the stability behavior of the entire system is dictated by the most unstable channel.After FMD occurs,flow oscillations are activated in channels with weak stability,and the in-tube flow is observed to evolve into various flow patterns,including stable flow,self-sustained oscillation,oscillation divergence,quasiperiodic oscillation,and oscillation excursion.The novel instability mode of oscillation excursion involves a spontaneous transition of operating states.It oscillates from an equilibrium state and then stabilizes at a new operational state after oscillation-induced redistribution.However,the newfound stable state may also be only temporary,with the in-tube flow regressing to the initial state,resulting in quasi-periodic oscillation.展开更多
Although traditional Chinese medicine(TCM)and modern medicine(MM)have considerably different treatment philosophies,they both make important contributions to human health care.TCM physicians usually treat diseases usi...Although traditional Chinese medicine(TCM)and modern medicine(MM)have considerably different treatment philosophies,they both make important contributions to human health care.TCM physicians usually treat diseases using TCM formula(TCMF),which is a combination of specific herbs,based on the holistic philosophy of TCM,whereas MM physicians treat diseases using chemical drugs that interact with specific biological molecules.The difference between the holistic view of TCM and the atomistic view of MM hinders their combination.Tools that are able to bridge together TCM and MM are essential for promoting the combination of these disciplines.In this paper,we present TCMFVis,a visual analytics system that would help domain experts explore the potential use of TCMFs in MM at the molecular level.TCMFVis deals with two significant challenges,namely,(i)intuitively obtaining valuable insights from heterogeneous data involved in TCMFs and(ii)efficiently identifying the common features among a cluster of TCMFs.In this study,a four-level(herb-ingredient-targetdisease)visual analytics framework was designed to facilitate the analysis of heterogeneous data in a proper workflow.Several set visualization techniques were first introduced into the system to facilitate the identification of common features among TCMFs.Case studies on two groups of TCMFs clustered by function were conducted by domain experts to evaluate TCMFVis.The results of these case studies demonstrate the usability and scalability of the system.展开更多
文摘Agent-oriented approach is increasingly showing its magic power in a diversity of fields, specifically, ubiquitous computing and smart environment. Meanwhile, it is considered the next creative issue is to interconnect and integrate isolated smart spaces in real world together into a higher level space known as a hyperspace. In this paper, an agent-oriented architecture, which involves the techniques of mobile agents, middleware, and embedded artificial intelligence, is proposed. Detailed implementations describe our efforts on the design of terminal device, user interface, agents, and AI
基金supported by the National Key Project,China(No.GJXM92579)the Strategic Priority Research Program of Chinese Academy of Sciences,China(No.XDA17030100)。
文摘Thermally-induced flow instabilities are a critical issue in multi-channel regenerative cooling systems.In particular,the interactions between Density-Wave Oscillations(DWO)and Flow Maldistribution(FMD)can result in complex and disastrous instability phenomena.This study investigates the instability behaviors of hydrocarbon fluid in a four-channel system with a constant heat flux ratio using both frequency-and time-domain methods.As the heat flux increases,the in-tube flow sequentially destabilizes in each channel and converges to new equilibrium states,leading to the emergence of FMD phenomena.This also causes the system eigenvalue to change repeatedly from negative to positive rather than increasing monotonically.Additionally,the system eigenvalues are between those of the two most unstable channels,indicating that the stability behavior of the entire system is dictated by the most unstable channel.After FMD occurs,flow oscillations are activated in channels with weak stability,and the in-tube flow is observed to evolve into various flow patterns,including stable flow,self-sustained oscillation,oscillation divergence,quasiperiodic oscillation,and oscillation excursion.The novel instability mode of oscillation excursion involves a spontaneous transition of operating states.It oscillates from an equilibrium state and then stabilizes at a new operational state after oscillation-induced redistribution.However,the newfound stable state may also be only temporary,with the in-tube flow regressing to the initial state,resulting in quasi-periodic oscillation.
基金supported by National Key R and D Program of China(under Grant No.2016YFA0502304)Important Drug Development Fund,Ministry of Science and Technology of China(2018ZX09735002).
文摘Although traditional Chinese medicine(TCM)and modern medicine(MM)have considerably different treatment philosophies,they both make important contributions to human health care.TCM physicians usually treat diseases using TCM formula(TCMF),which is a combination of specific herbs,based on the holistic philosophy of TCM,whereas MM physicians treat diseases using chemical drugs that interact with specific biological molecules.The difference between the holistic view of TCM and the atomistic view of MM hinders their combination.Tools that are able to bridge together TCM and MM are essential for promoting the combination of these disciplines.In this paper,we present TCMFVis,a visual analytics system that would help domain experts explore the potential use of TCMFs in MM at the molecular level.TCMFVis deals with two significant challenges,namely,(i)intuitively obtaining valuable insights from heterogeneous data involved in TCMFs and(ii)efficiently identifying the common features among a cluster of TCMFs.In this study,a four-level(herb-ingredient-targetdisease)visual analytics framework was designed to facilitate the analysis of heterogeneous data in a proper workflow.Several set visualization techniques were first introduced into the system to facilitate the identification of common features among TCMFs.Case studies on two groups of TCMFs clustered by function were conducted by domain experts to evaluate TCMFVis.The results of these case studies demonstrate the usability and scalability of the system.
