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Difference Between the Ion Gyroviscous Effect and Hall Magnetohydrodynamic Effect in the Magnetic Reconnection 被引量:1
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作者 CAI Chun-lin ZHOU Guo-cheng +1 位作者 CAO Jin-bin wang de-ju 《Chinese Physics Letters》 SCIE CAS CSCD 1999年第11期856-858,共3页
We study the ion gyroviscous effect and Hall magnetohydrodynamic (MHD) effect separately using the modified MHD simulation of the magnetopause. Simulations show that the ion gyroviscous effect is on the order of a cha... We study the ion gyroviscous effect and Hall magnetohydrodynamic (MHD) effect separately using the modified MHD simulation of the magnetopause. Simulations show that the ion gyroviscous effect is on the order of a characteristic scale of ion Larmor radius and is mainly limited near the magnetosheath boundary. The Hall MHD effect is on the order of a characteristic scale of ion inertial length and occurs mainly in the central region of the current layer. The magnetic field component out of the simulation plane has a bipolar structure near the magnetosheath boundary from the ion gyroviscous effect and a quadrupole structure in the central region of the current layer from the Hall MHD effect. These results are of fundamental importance in understanding the reconnection processes in space and astrophysical plasma. 展开更多
关键词 VISCOUS EFFECT effect.
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重庆市荣昌区打通“人、医、财”流通渠道 高质量推进县域医共体建设探索与实践 被引量:2
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作者 竹林村 张俊 +6 位作者 杨显华 王德菊 刘燕辉 何智忠 王自荣 廖霞 张先书 《中国初级卫生保健》 2022年第1期5-7,共3页
2019年8月,重庆市荣昌区作为全国567个紧密型县域医共体建设试点县之一,以"人通、医通、财通"为抓手,加快整合医疗卫生资源,促进医疗卫生工作重心下移和资源下沉,积极推动分级诊疗制度建设,为辖区内居民提供全方位的健康服务。
关键词 “三通”改革 医共体 分级诊疗 健康服务
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Modified Magnetohydrodynamic Model of Magnetic Reconnection
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作者 ZHOU Guo-cheng CAI Chun-lin +3 位作者 CAO Jin-bin ZHANG Yang-ting CHEN Tao wang de-ju 《Chinese Physics Letters》 SCIE CAS CSCD 1999年第6期461-463,共3页
This paper presents the modified magnetohydrodynamic(MHD)model and simulations of solar wind-magnetosphere interactions.We use the two-dimensional and three-component,compressible,resistive,ion gyroviscous and Hall MH... This paper presents the modified magnetohydrodynamic(MHD)model and simulations of solar wind-magnetosphere interactions.We use the two-dimensional and three-component,compressible,resistive,ion gyroviscous and Hall MHD model,i.e.,including the ion Unite Larmor radius(FLR)and Hall MHD effects,but neglecting the electron inertia and electron FLR effects.The composed dynamic pressure pulses(shear variations in the How velocity)in the solar wind form gusts that continually buffet the magnetosphere and cause the time-dependent magnetic reconnection at the magnetopause.The results show that the magnetic Held and the How velocity components perpendicular to the reconnection plane can be generated in magnetopause current layer.The vortical How structures can also occur in the magnetospheric side region.These results are responsible for non-ideal MHD properties of the plasma fluid,i.e.,ion FLR and Hall MHD effects. 展开更多
关键词 RECONNECTION effects. INERTIA
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