The model equations with tbree-dimensional, time-dependent, nonlinear Navier-Stokes equations are transformed by sigma-transformation.On the basis of the process splitting technique, the fluid flow problems are divid...The model equations with tbree-dimensional, time-dependent, nonlinear Navier-Stokes equations are transformed by sigma-transformation.On the basis of the process splitting technique, the fluid flow problems are divided into two parts:the vertically-intopated equations (external mode) and the vertical structure equations(internal mace). The first set of equations being the propagation of the tidal weves and the ADI numerical scheme has ben chosen to solve them. Conerning the vertical structure equations, they are solved by means of leapfrog stepping procedure.The main features of the tide and associated tidal current in the Bohai Sea are examined with this 3-D model.To have a good reproduction of vertical structure, the column is divided into 10 layers and the M2 tidal current is computed in detail. The simulation reveal the spetial structure and some important characteristics of the tidal current of the Bohai Sea. The application of the 3-D madel to forecasting of the tidal current in the Bobal Sea has been Performed as an illustration.展开更多
A reversible operation protocol is provided for a weak-measured quantum entanglement state.The evolution of weak values is studied under different parameter conditions.The weak values can be extracted from the entangl...A reversible operation protocol is provided for a weak-measured quantum entanglement state.The evolution of weak values is studied under different parameter conditions.The weak values can be extracted from the entanglement state and the weak-measured quantum entanglement state can be revived to its initial state theoretically by weak measurement and reversibility operation respectively.We demonstrate the reversible operation protocol by taking Bell's state as an example.The negativity is used to analyze the initial state,the weak-measured state and the reversed state in order to describe the evolution of quantum entanglement degree.Weak values are detected from the quantum entanglement state by weak measurement and the degree of the weak-measured quantum entanglement state can be revived to its initial state through reversible operation.The information of quantum entanglement state would be extracted from weak values detected in the process of the scheme.展开更多
文摘The model equations with tbree-dimensional, time-dependent, nonlinear Navier-Stokes equations are transformed by sigma-transformation.On the basis of the process splitting technique, the fluid flow problems are divided into two parts:the vertically-intopated equations (external mode) and the vertical structure equations(internal mace). The first set of equations being the propagation of the tidal weves and the ADI numerical scheme has ben chosen to solve them. Conerning the vertical structure equations, they are solved by means of leapfrog stepping procedure.The main features of the tide and associated tidal current in the Bohai Sea are examined with this 3-D model.To have a good reproduction of vertical structure, the column is divided into 10 layers and the M2 tidal current is computed in detail. The simulation reveal the spetial structure and some important characteristics of the tidal current of the Bohai Sea. The application of the 3-D madel to forecasting of the tidal current in the Bobal Sea has been Performed as an illustration.
基金supported by the National Science Foundation of China(No.11504135)the University Science and Technology Plan Project of Shandong Province(No.J16LJ53)the Jining University Doctoral Foundation(No.272265)。
文摘A reversible operation protocol is provided for a weak-measured quantum entanglement state.The evolution of weak values is studied under different parameter conditions.The weak values can be extracted from the entanglement state and the weak-measured quantum entanglement state can be revived to its initial state theoretically by weak measurement and reversibility operation respectively.We demonstrate the reversible operation protocol by taking Bell's state as an example.The negativity is used to analyze the initial state,the weak-measured state and the reversed state in order to describe the evolution of quantum entanglement degree.Weak values are detected from the quantum entanglement state by weak measurement and the degree of the weak-measured quantum entanglement state can be revived to its initial state through reversible operation.The information of quantum entanglement state would be extracted from weak values detected in the process of the scheme.
