本文研究了地球弓激波前内透射离子动力学横场流不稳定性。
The kinetic cross-field streaming electromagnetic instability for transmitted ions within the Earth's bow shock front is investigated in this paper.
应用平均场理论，在横场伊辛模型的框架内，研究了退极化场对铁电超晶格热力学性质的影响。
Using mean field theory, the effects of depolarization field on the thermodynamic properties of ferroelectric superlattice is studied within the framework of the transverse Ising model.
如果负单离子各向异性场参数不大且横场值较小，我们观察到在目前的系统中重入相变可能发生。
We observe that the reentrant transition may occur in the present system if single - ion anisotropy parameter is not large and if transverse field is small.
应用平均场理论，在横场伊辛模型的框架内，研究了界面量子起伏对铁电超晶格介电性质的影响。
Using mean_field theory, the effects of the interfacial quantum fluctuation on the dielectric property of a ferroelectric superlattice is studied within the framework of the transverse Ising model.
最后我们采用李—杨零点方法对一维横场各向异性XY模型在零温下的量子相变作了较为系统的研究。
Finally, we apply the theory to study the quantum phase transitions of one-dimensional anisotropic XY quantum spin chain in a transverse field at zero temperature.
应用具有长程相互作用的横场伊辛模型模拟了铁电颗粒 ，考察了尺寸和长程相互作用对铁电颗粒的极化和相变的影响 。
The transverse Ising model with long range interaction in a simple subic lattice is used to simulate a ferroelectric particle.
本文在假定单模光纤横端面上的近场为高斯分布的前提下，从理论上导出了其远场分布也是高斯分布。
In this paper, when assuming a Gaussian near field distribution on the cross section of single-mode fiber, it has been derived theoretically that the far field is also a Gaussian distribution.
同时对渐开线齿轮轴楔横轧成形的可行性进行了分析，对成形区的动可容速度场假设进行了验证。
The feasibility of the CWR forming of involute gear-shaft is analyzed and the hypothesis of the kinematically admissible velocity field in the wedging zone is verified.
采用流场数值模拟计算方法，计算了横风作用时的垂向气动升力系数、气动横向力系数和侧滚力矩系数，得出各系数与车辆速度和风速之间的变化关系。
Using numerical computation of fluid flow, the coefficients of vertical force, lateral force and rolling moment caused by cross-wind were calculated, which were related to train speed and wind speed.
并分别计算了平面波正横和斜入射单层和双层无限长圆柱壳体的远场散射形态函数。
The scattering form functions of the single shell and double concentric shells insonified by a normally and obliquely incident plane wave are calculated.
本文在假定单模光纤横端面上的近场为高斯分布的前提下，从理论上导出了其远场分布也是高斯分布。
It has been theoretically derived that the far field is also a Gaussian distribution provided that the near field on the output end face of single mode fiber is Gaussian distribution.
在三维瞬态温度场仿真计算结果的基础上，利用三维瞬态非线性有限元方法对小湾拱坝横缝开度进行了全过程仿真分析。
On the basis of simulation of transient temperature field, the whole process of Xiaowan arch DAMS transverse joints aperture is simulated by use of transient 3-d nonlinear FEM.
这样，对应每一个横各向同性弹性随机介质模型，均可计算得到15个不同的波场特征量。
In this way, corresponding to every single transversely isotropic elastic random medium model, we can calculate and gained 15 different wave field characteristic quantities.
利用三维弹塑性有限元软件L S- DY NA对一种典型偏心轴类零件楔横轧成形进行了数值模拟，分析了其成形过程、应力应变场分布及工艺特点。
The cross wedge rolling deformation process of shaft parts with eccentric section was simulated with three-dimension finite element soft LS-DYNA by using elastic-plastic finite element method.
采用该模型对二辊楔横轧成形工艺进行仿真计算，得出了轧后工件的温度场、变形场、高温奥氏体晶粒尺寸分布等。
Through simulation of the 2-roll cross wedge rolling (CWR), the temperature and strain fields, and the distribution of grain size and so on, were obtained.
采用该模型对二辊楔横轧成形工艺进行仿真计算，得出了轧后工件的温度场、变形场、高温奥氏体晶粒尺寸分布等。
Through simulation of the 2-roll cross wedge rolling (CWR), the temperature and strain fields, and the distribution of grain size and so on, were obtained.
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