The dynamic properties of interacting vortex-antivortex pairs in thin film are studied by analytical calculations. An- alytical expressions for the magnetization vector distribution of vortex-antivortex pairs and the ...The dynamic properties of interacting vortex-antivortex pairs in thin film are studied by analytical calculations. An- alytical expressions for the magnetization vector distribution of vortex-antivortex pairs and the trivortex states are given. The magnetic states of the vortices are treated as having rigid structures, i.e., the vortex maintains its spin distribution when moving. The trajectories of the vortex cores are calculated by the Thiele's equation. It is found that the vortex-antivortex pair rotates around each other when they have opposite polarities, however, vortex and antivortex cores move along straight lines when they have the same polarity. The frequency of the rotation decreases with increasing the distance between the two cores of vortex-antivortex pair, and it has a lower value when a third vortex is introduced.展开更多
The relationship between activity coefficient and molecule exchanging energy of surfactants in the surface monolayer of binary surfactant aqueous solutions has been deduced with the help of two dimensional crystal mod...The relationship between activity coefficient and molecule exchanging energy of surfactants in the surface monolayer of binary surfactant aqueous solutions has been deduced with the help of two dimensional crystal model. The results show the relationship between the synergism of surfactants and the molecule exchanging energy. Through the parameter of molecule interaction( β s), the value of the molecule exchanging energy can be obtained by equation ε =2.3×10 -24 β s T that has been examined with six typical surfactant systems.展开更多
随着网络教育的发展,网络教学平台的重要性越来越突出。为了充分利用教育资源,提高教学过程中的交互性和主动性,利用JSP技术设计了基于Web的《互换性与技术测量》课程教学平台。该平台采用B/S三层架构模式,以SQL Server 2000做数据库平...随着网络教育的发展,网络教学平台的重要性越来越突出。为了充分利用教育资源,提高教学过程中的交互性和主动性,利用JSP技术设计了基于Web的《互换性与技术测量》课程教学平台。该平台采用B/S三层架构模式,以SQL Server 2000做数据库平台,可以实现注册和登陆、课程学习、师生交流、网站管理等功能。展开更多
基金Project supported by the National Natural Science Foundation of China(Grant No.11204026)the Fundamental Research Funds for Central Universities of the Ministry of Education of China(Grant No.n130405011)
文摘The dynamic properties of interacting vortex-antivortex pairs in thin film are studied by analytical calculations. An- alytical expressions for the magnetization vector distribution of vortex-antivortex pairs and the trivortex states are given. The magnetic states of the vortices are treated as having rigid structures, i.e., the vortex maintains its spin distribution when moving. The trajectories of the vortex cores are calculated by the Thiele's equation. It is found that the vortex-antivortex pair rotates around each other when they have opposite polarities, however, vortex and antivortex cores move along straight lines when they have the same polarity. The frequency of the rotation decreases with increasing the distance between the two cores of vortex-antivortex pair, and it has a lower value when a third vortex is introduced.
文摘The relationship between activity coefficient and molecule exchanging energy of surfactants in the surface monolayer of binary surfactant aqueous solutions has been deduced with the help of two dimensional crystal model. The results show the relationship between the synergism of surfactants and the molecule exchanging energy. Through the parameter of molecule interaction( β s), the value of the molecule exchanging energy can be obtained by equation ε =2.3×10 -24 β s T that has been examined with six typical surfactant systems.
文摘随着网络教育的发展,网络教学平台的重要性越来越突出。为了充分利用教育资源,提高教学过程中的交互性和主动性,利用JSP技术设计了基于Web的《互换性与技术测量》课程教学平台。该平台采用B/S三层架构模式,以SQL Server 2000做数据库平台,可以实现注册和登陆、课程学习、师生交流、网站管理等功能。