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轨道计算

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The Bernese 5.0 software is used to compute the precise orbits of the FORMOSAT-3 and GRACE satellites using the kinematic and reduced-dynamic methods based on zero-differenced GPS phases from these two satellites missions. This study concentrates on the effects of satellite attitude, GPS antenna phase center variation and center of mass.

本论文针对福尔摩沙卫星三号及GRACE卫星姿态、相位及质心影响精密定轨问题分别进行探讨,采用GPS相位观测资料以Bernese 5.0软体进行零次差减动力法及动态法计算轨道。

The electronic density of states on zinc blende CdTe, VCd system and CdTe doping Cu were analyzed with density functional theory.

研究中运用密度泛函相关理论,分析闪锌矿结构CdTe,Cd空位体系和掺Cu体系的电子态密度,计算得出Td场和C3V场下Cu2+ d轨道的分裂情况。

This paper introduces different signal block modes and the method which was used to calculate tracking intervals between trains, and establishes simulation system for multi-train tracking. A case was designed for analysis.

介绍了城市轨道交通不同信号闭塞方式及其追踪列车间隔时间的计算方法,建立了多列车追踪运行的仿真系统,并进行了算例的设计。

A new way of calculating bond energy is proposed proceeding from LCAO-MO.

从LCAO-MO出发,给出了一个计算键能的近似方法,即EAB-∑∑CaiSabCbiεi为第i个占据分子轨道中的一对电子对A-B键键能的贡献。

The characteristic exponent based on a probabilistic dynamical system is calculated, which provides some useful information on unstable periodic orbits of the chaotic economic dynamical system. An effective controlling parameter is chosen by discussing the sign of the characteristic exponent. Furthermore, the control regions of the parameter variable are proposed. Therefore the controllable domain of chaos in the chaotic economic model can be obtained.

提出一种等价关系,计算基于概率的动力系统的特征指数,给出混沌经济动力系统的不稳定周期轨道的有用信息,通过讨论特征指数的符号,选择有效的控制参数,得到相应的控制参数取值范围,从而得到混沌经济模型中的参数变量的混沌控制域。

A set of new formulas for computing the position and time of crossover points is presented.

本文给出了一组新的计算交叉点位置和时间的公式,这组公式利用测高卫星精密重复轨道的特点,不需要从星历表中读取每个弧段在赤道上的位置及穿越赤道的时间。

Furthermore, though Nt and Ne are the two different covalent factors belonging to different wave functions, their difference in numerical values should be small, because Racah electrostatic parameter A plays a great role in the calculation of energy levels when the covalence effect is considered.

Nt和Ne虽然是属于两个不同轨道的不同的共价因子,但在数值上不能有大的差别,因为考虑进共价效应后,拉卡静电参量A对能级计算有极大的影响。

In this paper, the 3D FEM models of cone-tread and worn-tread locomotive and vehicle wheels are firstly established, which come into contact with the rail of standard size. There hasn't been any more refined 3D FEM computation model of wheel/rail up till now. The elastic effect of crosstie and roadbed is also considered.

本文建立了锥形踏面、磨耗形踏面的机车和车辆车轮分别与标准轨道相接触的三维有限元计算模型,模型还考虑了轨枕和部分道床的弹性作用。

In this paper, the 3D FEM models of cone-tread and worn-tread locomotive and vehicle wheels are firstly established, which come into contact with the rail of standard size. There hasnt been any more refined 3D FEM computation model of wheel/rail up till now. The elastic effect of crosstie and roadbed is also considered.

本文建立了锥形踏面、磨耗形踏面的机车和车辆车轮分别与标准轨道相接触的三维有限元计算模型,模型还考虑了轨枕和部分道床的弹性作用。

Finally, the values of the OAM of the beam light which have transmitted through the cylindrical lens are also calculated and the results are discussed.

利用傍轴近似计算了这两种偏振态光束通过一个柱面透镜后所具有的轨道角动量。

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推荐网络例句

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。