This paper presents research into applying virtual environment (VE) technology to supply chain management (SCM). Our research work has employed virtual manufacturing environments to represent supply chain nodes to sim...This paper presents research into applying virtual environment (VE) technology to supply chain management (SCM). Our research work has employed virtual manufacturing environments to represent supply chain nodes to simulate processes and activities in supply chain management. This will enable those who are involved in these processes and activities to gain an intuitive understanding of them, so as to design robust supply chains and make correct decisions at the right time. A framework system and its hierarchical structure for visualising and simulating supply chains in virtual environments are reported and detailed in this paper.展开更多
Digital medicine is a new concept in medical field, and the need for digital human body is increasing these years. This paper used Free Form Deformation (FFD) to model the motion of human leg. It presented the motion ...Digital medicine is a new concept in medical field, and the need for digital human body is increasing these years. This paper used Free Form Deformation (FFD) to model the motion of human leg. It presented the motion equations of knee joint on the basis of anatomic structure and motion characters, then transmitted the deformation to the mesh of leg through a simplified FFD that only used two order B spline basis function. The experiments prove that this method can simulate the bend of leg and the deformation of muscles fairly well. Compared with the method of curved patches, this method is more convenient and effective. Furthermore, those equations can be easily applied to other joint models of human body.展开更多
In the clinical reports, the E1784K mutation in SCN5A is recognized as a phenotypic overlap between the long QT syndrome （LQT3） and the Brugada syndrome （BrS） in the characteristics of electrocardiograms （ECGs） ...In the clinical reports, the E1784K mutation in SCN5A is recognized as a phenotypic overlap between the long QT syndrome （LQT3） and the Brugada syndrome （BrS） in the characteristics of electrocardiograms （ECGs） since the mutation can influence sodium channel functions. However it is still unclear if the E1784K mutation-induced sodium ionic channel alterations account for the overlap at tissue level. Thsu, a detailed computational model is developed to underpin the functional impacts of the E1784K mutation on the action potential （AP）, the effective refractory period （ERP） and the abnormal ECG. Simulation results stlggest＇that the E1784K mutation-induced sodium channel alterations are insufficient to produce the phenotypic overlap between LQT3 and BrS, and the overlap may arise from the complicated effects of the E1784K mutation-induced changes in sodium channel currents with an increase of the transient outward current ITo or a decrease of the L-type calcium current ICaL .展开更多
为了实现国内城市实时天气的三维动态可视化显示,以Google Earth为二次开发平台,在.NET环境下实现系统的设计。通过调用Weather Web Service,解析得到天气信息,利用OpenGL以物理规律和粒子系统理论为依据模拟天气现象。查询时,在Google ...为了实现国内城市实时天气的三维动态可视化显示,以Google Earth为二次开发平台,在.NET环境下实现系统的设计。通过调用Weather Web Service,解析得到天气信息,利用OpenGL以物理规律和粒子系统理论为依据模拟天气现象。查询时,在Google Earth的城市界面背景上,显示出查询地点实时天气对应的天气动画。实验结果表明:该系统能够使得传统视景仿真得到的雨雪等天气效果实时更新,并且实现了天气信息与地理信息的有机叠加,具有良好的实时性和直观性。展开更多
基金This work is partially sponsored by the Cheung Kong Scholars Programme of the People's Republic of China.
文摘This paper presents research into applying virtual environment (VE) technology to supply chain management (SCM). Our research work has employed virtual manufacturing environments to represent supply chain nodes to simulate processes and activities in supply chain management. This will enable those who are involved in these processes and activities to gain an intuitive understanding of them, so as to design robust supply chains and make correct decisions at the right time. A framework system and its hierarchical structure for visualising and simulating supply chains in virtual environments are reported and detailed in this paper.
文摘Digital medicine is a new concept in medical field, and the need for digital human body is increasing these years. This paper used Free Form Deformation (FFD) to model the motion of human leg. It presented the motion equations of knee joint on the basis of anatomic structure and motion characters, then transmitted the deformation to the mesh of leg through a simplified FFD that only used two order B spline basis function. The experiments prove that this method can simulate the bend of leg and the deformation of muscles fairly well. Compared with the method of curved patches, this method is more convenient and effective. Furthermore, those equations can be easily applied to other joint models of human body.
基金Supported by the National Natural Science Foundation of China(61001167,61172149)~~
文摘In the clinical reports, the E1784K mutation in SCN5A is recognized as a phenotypic overlap between the long QT syndrome （LQT3） and the Brugada syndrome （BrS） in the characteristics of electrocardiograms （ECGs） since the mutation can influence sodium channel functions. However it is still unclear if the E1784K mutation-induced sodium ionic channel alterations account for the overlap at tissue level. Thsu, a detailed computational model is developed to underpin the functional impacts of the E1784K mutation on the action potential （AP）, the effective refractory period （ERP） and the abnormal ECG. Simulation results stlggest＇that the E1784K mutation-induced sodium channel alterations are insufficient to produce the phenotypic overlap between LQT3 and BrS, and the overlap may arise from the complicated effects of the E1784K mutation-induced changes in sodium channel currents with an increase of the transient outward current ITo or a decrease of the L-type calcium current ICaL .
文摘为了实现国内城市实时天气的三维动态可视化显示,以Google Earth为二次开发平台,在.NET环境下实现系统的设计。通过调用Weather Web Service,解析得到天气信息,利用OpenGL以物理规律和粒子系统理论为依据模拟天气现象。查询时,在Google Earth的城市界面背景上,显示出查询地点实时天气对应的天气动画。实验结果表明:该系统能够使得传统视景仿真得到的雨雪等天气效果实时更新,并且实现了天气信息与地理信息的有机叠加,具有良好的实时性和直观性。
