This paper investigates the Effect of Metal Oxide Arrester (MOV) on the Chaotic Behaviour of power transformers considering nonlinear model for core loss of transformer. The paper contains two parts. In part (1): effe...This paper investigates the Effect of Metal Oxide Arrester (MOV) on the Chaotic Behaviour of power transformers considering nonlinear model for core loss of transformer. The paper contains two parts. In part (1): effect of nonlinear core on the onset of chaotic ferroresonance in a power transformer is evaluated. The core loss is modeled by a third order power series in voltage. in part (2): Effect of Metal Oxide Arrester(MOV) on results in part (1) will be studied. The results reveal that the presence of the arrester has a mitigating effect on ferroresonant chaotic overvoltages. resulted bifurcation diagrams and phase plane diagrams have also been delivered.展开更多
Radiopharmaceutical therapy(RPT)has shown great promise in the treatment of various cancers.However,the current approach is a"one size fits all"model,which results in varied patient responses,and there is a ...Radiopharmaceutical therapy(RPT)has shown great promise in the treatment of various cancers.However,the current approach is a"one size fits all"model,which results in varied patient responses,and there is a need for personalized RPT(Fig.S1 online).This personalized approach requires a better understanding of the physics,biology,radiobiology,pharmacology,immunology,chemistry,and imaging involved in RPT[1].Multidisciplinary research using experimental,numerical,and simulation platforms would be key to accelerating progress in this area.展开更多
Analyzing static and dynamic problems including composite structures has been of high significance in research efforts and industrial applications.In this article,equivalent single layer approach is utilized for dynam...Analyzing static and dynamic problems including composite structures has been of high significance in research efforts and industrial applications.In this article,equivalent single layer approach is utilized for dynamic finite element procedures of 3D composite beam as the building block of numerous composite structures.In this model,both displacement and strain fields are decomposed into cross-sectional and longitudinal components,called consistent geometric decomposition theorem.Then,the model is discretized using finite clement procedures.Two local coordinate systems and a global one are defined to decouple mechanical degrees of freedom.Furthermore,from the viewpoint of consistent geometric decomposition theorem,the transformation and element mass matrices for those systems are introduced here for the first time.The same decomposition idea can be used for developing element stiffiness matrix.Finally,comprehensive validations are conducted for the theory against experimental and numerical results in two case studies and for various conditions.展开更多
文摘This paper investigates the Effect of Metal Oxide Arrester (MOV) on the Chaotic Behaviour of power transformers considering nonlinear model for core loss of transformer. The paper contains two parts. In part (1): effect of nonlinear core on the onset of chaotic ferroresonance in a power transformer is evaluated. The core loss is modeled by a third order power series in voltage. in part (2): Effect of Metal Oxide Arrester(MOV) on results in part (1) will be studied. The results reveal that the presence of the arrester has a mitigating effect on ferroresonant chaotic overvoltages. resulted bifurcation diagrams and phase plane diagrams have also been delivered.
基金supported by the Canadian Institutes of Health Research (CIHR) Project Grant PJT-162216Networking Health Ltd
文摘Radiopharmaceutical therapy(RPT)has shown great promise in the treatment of various cancers.However,the current approach is a"one size fits all"model,which results in varied patient responses,and there is a need for personalized RPT(Fig.S1 online).This personalized approach requires a better understanding of the physics,biology,radiobiology,pharmacology,immunology,chemistry,and imaging involved in RPT[1].Multidisciplinary research using experimental,numerical,and simulation platforms would be key to accelerating progress in this area.
文摘Analyzing static and dynamic problems including composite structures has been of high significance in research efforts and industrial applications.In this article,equivalent single layer approach is utilized for dynamic finite element procedures of 3D composite beam as the building block of numerous composite structures.In this model,both displacement and strain fields are decomposed into cross-sectional and longitudinal components,called consistent geometric decomposition theorem.Then,the model is discretized using finite clement procedures.Two local coordinate systems and a global one are defined to decouple mechanical degrees of freedom.Furthermore,from the viewpoint of consistent geometric decomposition theorem,the transformation and element mass matrices for those systems are introduced here for the first time.The same decomposition idea can be used for developing element stiffiness matrix.Finally,comprehensive validations are conducted for the theory against experimental and numerical results in two case studies and for various conditions.
