本文中研究了神经网络在列车轨道动力学中的应用。
In the paper, a research on neural network used in train track dynamic system is presented.
然而，从地球和木星轨道动力学的角度，这次消失是极端意外事件。
But due to the orbital dynamics of Earth and Jupiter, this particular disrobing was far more abrupt.
在只考虑轨道动力学的情况下，分析了太阳帆的被动控制。
With passive control, the solar sail orbit is stable and its initial momentum determines the orbit parameters.
根据轨道动力学理论，建立了近距离空间拦截轨道的数学模型。
Based on orbit dynamic theory, the close interception model was set up.
由此，论文主要研究内容如下：首先，建立了天体及航天器轨道动力学模型。
Thus, the main contents of this thesis are organized as follows: First of all, the orbit dynamic model about celestial bodies and the spacecraft is established.
采用精确轨道动力学模型，得到了满足共面交会约束的发射窗口，以及地月转移轨道特性。
The launch window meeting the restriction of coplanar rendezvous and the characteristics of trans-lunar trajectory is obtained by precise dynamics model.
本文研究了编队飞行卫星群的轨道动力学特性，提出了编队飞行的轨道构形设计的原则和方法。
This paper reveals the dynamical characteristics of relative orbital motion of formation flight and presents the principles and method for the orbit configuration design of formation flight.
第三章，建立了卫星轨道动力学模型，设计了GPS和运动方程组合的卡尔曼滤波器，并针对不同轨道高度的微小卫星进行了定位仿真。
In chapter 3, the orbit dynamics models are established, the Kalman Filter of the GPS and kinematics equation combined are designed, and simulations of different orbit Micro-satellite are done.
2010年10月7日，当一轮新月从太空飞船（与地球同步轨道）和太阳之间直接经过时，美国国家航空航天局太阳动力学观测台观测到了圆月的运转。
On Oct. 7, 2010, NASA's Solar Dynamics Observatory, or SDO, observed its first lunar transit when the new moon passed directly between the spacecraft (in its geosynchronous orbit) and the sun.
结果表明，动力学平滑能有效改善几何法轨道精度。
The results show that the dynamic smoothing can improve the precision of geometric orbits.
本文建议用前线分子轨道能量作为分子动力学稳定性判据。
This paper suggests frontier orbital energies as criterion of the dynamic stability.
这种分析的概念的基础是将所观察到的神经元活动抽象成用非稳定周期轨道的分级所描述的动力学图。
The conceptual foundation of this analysis is the abstraction of observed neuronal activities into a dynamical landscape characterized by a hierarchy of "unstable periodic orbits" (UPOs).
机车车辆在轨道上运行是一个动力学过程，也是一个运动学过程。
It is not only a dynamical, but also a kinematical procedure that vehicle runs on the track.
滚动振动试验台在测试机车车辆动力学性能时，轨道轮与实际线路的差异会造成测试结果出现偏差。
In testing the dynamics performance of locomotives and rolling stock on the roller testing rig, the difference between the track wheel and the actual track may cause deviation of the test results.
为刻划心脏节律存在的确定性动力学特征，运用不稳定周期轨道分析方法对健康青年人的RR间期时间序列数据进行分析。
To characterize the deterministic dynamics in heart rhythm, the unstable periodic orbit analysis were the RR interval time series of healthy young men.
目的研究立位心脏R- R间期信号的非稳定周期轨道的结构，进一步探讨心率变异（HRV）的动力学特征。
Objective To study structure of the unstable periodic orbits (UPOs) of R-R interval signals of heart during orthostatic standing, and to reveal the dynamic characters of heart rate variability (HRV).
通过运用划分及其蕴涵着的编码，给出了其动力学的符号表示及轨道所对应的路径的允字条件。
Using codes underlying the map operations, symbolic descriptions of the dynamics and admissibility conditions for itineraries are given for these discontinuous maps.
提示出非稳定周期轨道在神经不规则放电节律的动力学之中起着重要作用。
These results suggest that the UPO play an important role in the dynamics of the irregular firing pattern of neuron's discharge.
动力学方法从CW方程的解析解出发，证明了绕飞轨道是以参考卫星为中心的椭圆。
In the dynamic method, starting from the analytical solutions of the CW equations, the flying-around orbit is proved to be an ellipse centered at the reference satellite.
本文给出了一维单谷映象周期轨道的符号动力学的符号排序规则，并对强迫布鲁塞尔振子模型作了讨论。
Gives the rule of signs arrange of signs dynamics of periodic orbital on one dimension single valley image, and discusses the model of the forced Brussels vibrator.
研究方法：主要研究内容包括：（1）无碴轨道路基基床动力学特性试验研究；
Research methods:The main research contents include:(1)the experimental research of dynamic characteristics of subgrade bed of ballastless track;
比较了两种轨道结构形式下的动力学行为的差异。
And the differences of dynamic behavior on two forms of track structure are compared.
应用轮轨系统动力学的频域分析方法，研究了轨道刚度对轨道动力特性的影响规律。
The effects of track stiffness on track dynamic characteristics were investigated by the wheel-rail system dynamic analysis in frequency domain.
利用车辆-轨道耦合动力学理论所编制的程序，计算弹性轨枕有碴轨道与普通轨枕有碴轨道在相同工况下的动力响应。
By running the program based on vehicle-rail coupling dynamics, compute the dynamic response of elastic sleeper ballasted rail and common sleeper ballasted rail under same working condition.
分析了多边形车轮在板式轨道下对直线电机车辆动力学性能的影响。
This thesis develops a coupling dynamics model for LIM vehicle and slab track to investigate the influence of polygonal wheels on dynamic behavior.
一颗名为太阳动力学观测卫星的轨道卫星拍摄了一组太阳耀斑的图片。
Images of the flare were recorded by an orbiting satellite called the Solar Dynamics Observatory.
对基于C-W方程的悬停动力学模型进行了精度分析，最后以低轨道航天器的八面体编队构型为例进行了数学仿真验证。
The precision of hanging dynamic model based on CW equation was analyzed in detail, and a low earth orbit satellite octahedron configuration was simulated for validation.
第二种控制方案可以驱动BZ - CSTR混沌动力学到达一系列规则的动力学状态，这些动力学状态可能并不是混沌轨道中内嵌的本征轨道。
The second control method can drive the BZ-CSTR chaotic dynamics to a new status of dynamics which may not be the original embedded intrinsic orbits of the chaos.
采用本地轨道坐标系对两邻近飞船间相对运动动力学展开研究，指出在相对运动中也存在平衡状态；
The dynamics of the relative motion between two nearby spacecraft is investigated in a local orbital coordinate system. It' has been pointed out that an equilibrium state may exist in the motion;
结论非稳定周期轨道可以刻划hrv的动力学性质，是分析HRV的潜在的方法。
Conclusion UPOs can be used to characterize the dynamics of HRV and is a potential method to analyze HRV.
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