【摘 要】
:
On the basis of the total time derivative along the trajectory, we study the generalized Mei conserved quantity of Mei symmetry for mechanico-electrical systems
【机 构】
:
Department of Physics, Henan Institute of Education, Zhengzhou 450014
论文部分内容阅读
On the basis of the total time derivative along the trajectory, we study the generalized Mei conserved quantity of Mei symmetry for mechanico-electrical systems with nonholonomie controllable constraints. Firstly, the definition and criterion of Mei symmetry for mechanico-electrical systems with nonholonomic controllable constraints are presented. Secondly, a coordination function is introduced, and the conditions of existence of generalized Mei conserved quantity as well as the forms are proposed. Lastly, an example is given to illustrate the application of the results.
其他文献
本文提出了一种异联想记忆模型的优化学习算法.首先,我们将反映神经元网络性能的标准转化为一个易于控制的代价函数,从而将权值的确定过程自然地转化为一个全局最优化过程.优
We theoretically show that H atoms can be chemically adsorbed onto the surface of the Si-C heterofullerene-based nanotubes.The adsorbing energy of the H atom on
A three-component model based on mass transfer equation is proposed to simulate both the natural and ventilated cavitations.In the present cavitation model,the
We report the formation of jet-like long spike in the nonlinear evolution of the ablative Rayleigh-Taylor instability(ARTI)experiments by numerical simulations.
Adsorption of atomic carbon on δ-Pu(111)surface is investigated systematically using density functional theory with RPBE functional.The adsorption energies,ads
Accelerator mass spectrometry (AMS) is one of the most promising methods to detect minute amounts of 182Hf. However, the sensitivity of 5×10-11 for 182Hf/180 H
The elementary beam model is modified to include the surface effects and used to analyze the deflections of nanowires under different boundary conditions.The re
The displaying condition of strength, phase and polarization states of high-frequency relic gravitational waves (BFRGWs) in electromagnetic (EM) detecting syste
Structural equations and Mei conserved quantity of Mei symmetry for Appell equations in a holonomic system with redundant coordinates are studied. Some aspects,