The new model, which tracks thousands of tiny particles beyond the orbit of Neptune, could help astronomers work out the properties of planets in other stars' dust disks.
这个新模型追踪了海王星轨道外数无数个微小物体的运行轨迹，它可以帮助天文学家计算出其他星系尘埃盘中行星的特性。
So, what he did was kind of impose a quantum mechanical model, not a full one, just the idea that those energy levels were quantized on to the classical picture of an atom that has a discreet orbit.
还不是完整的，只是这些能级，是量子化的概念，作用到原子有分立轨道的经典原子模型上，当他做了一些计算后，他得到有个半径，他算出来。
In this paper, the intercept model of the spacecraft in space warfare was built and the optimization orbit was designed based on the theories of kinematics.
本文通过建立航天器在空间作战的拦截模型，根据运动学的理论来设计航天器空间作战最优拦截轨道。
The initial testing shows that there is a better coincidence between the real motion orbit and the modified model.
初步的测试表明，介质实际运动轨迹与修正后的模型有更好的吻合。
In the traditional solution to the SAR problems, the earth often adopts circular model and the orbit adopts elliptical model. This often brings error to the calculations.
在传统的星载sar问题的研究中，地球采用球模型，轨道采用圆轨道模型，这给星载sar问题的计算带来了一定的误差。
The essence of our method is that, on the base of the crystal field model for point charge, the effect of molecule orbit is considered partly for the centrally symmetric field of coordination bodies.
这种方法的实质在于，在晶体场静止点荷模型基础上，考虑了诸配体等效中心对称场的部份分子轨道效应。
On the other hand, the precision gravity model is important guarantees for obtaining high precision orbiting results using the dynamic or reduced-dynamic orbit determination method.
低轨重力卫星轨道的精确确定是获得精密地球重力场模型的前提，而精密重力场模型又是获得高精度定轨结果的保证。
It is presented in this paper a multivariable generalized predictive adaptive controller based on CARMA model and its application in the orbit control of spacecraft.
本文导出了基于对象CARMA模型的多变量广义预测自适应控制器，并将这种新的控制方法应用于航天器轨道控制中。
The main function of orbit calculation is to simulate the flight procedure of spacecraft, before that, the dynamics model of orbit must be established.
轨道计算主要用来模拟飞行器的飞行过程，前提是建立动力学模型。
The flight trajectories from low earth parking orbit (LEO) to low lunar parking orbit (LLO) based on a planar three-body model are studied.
进行了基于平面三体模型的登月飞行器轨道控制方法的研究；研究了从近地低轨道到近月低轨道的飞行轨道；
Abstract : When using the Range-Doppler model for SAR image geometric correction, the error of satellite orbit, imaging parameter and DEM elevation will affect the geometric correction accuracy.
摘要 ：使用距离多普勒模型进行SAR影象几何校正时，卫星轨道误差、系统成像参数误差和DEM高程的误差会影响几何校正精度。
Based on orbit dynamic theory, the close interception model was set up.
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。
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.
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。
It shows that the precision of orbit prediction is enhanced by over an order of magnitude, indicating that the model is a reasonable solution to the deflation process.
计算结果表明，返回制动开始点的轨道预报精度提高了一个量级，这说明模型的建立对于解决轨道舱泄压扰动的影响是合理有效的。
The proposed model, control strategy and analysis methods are applicable to the target′s rendezvous orbit design and control implementation.
所提出的计算模型、控制策略和分析方法适用于目标飞行器交会对接轨道设计和控制实施。
Therefore, it is very important to choose an appropriate atmospheric density model for a specific orbit to improve the accuracy of orbit forecast.
在这些模型中并没有一种在任何情况下都是最好的，因此，对于特定轨道选择合适的大气密度模型对提高定轨预报的精度是非常重要的。
Positional and attitude error dynamics model of small satellite relative to a target satellite was derived, then the desired relative orbit and desired attitude of small satellite were designed.
建立了小卫星相对轨道和姿态的误差动力学模型，根据作业任务和姿态指向要求确定了小卫星相对轨道和姿态的期望运动；
The satellite CCD photograph model under the effects of orbit motion, earth rotation, earth shape and the Gauss map, etc. is also presented.
还建立了卫星姿态运动、轨道运动、地球自转、地球曲率、高斯投影等影响下的星载线阵c CD成像模型。
Finally, the two level differential corrections method was proposed to transform the orbit designed under the circular restricted three-body problem model into the perturbed three-body problem model.
最后使用两层微分修正方法将圆型限制性三体问题模型下设计的轨道转换到受摄三体问题模型下。
Chapter 3 analyzes numerically the effects for orbit calculation caused by orbital perturbation, parameter error and so on. A precise mathematical model of orbit calculation is given.
第三章通过数值法分析了各项轨道摄动和参数误差等因素的对轨道计算的影响，给出了精确的月球探测器轨道计算数学模型。
Changes of orbit blood routine, thymus index, spleen index and ATPase activity of red cell membrane of model mice were tested.
检测模型动物外周血常规、胸腺指数和脾脏指数、红细胞膜atp酶活力变化。
Considering coupled control inputs, an integrated coupling relative position and attitude dynamic model of the on-orbit servicing spacecraft is built with respect to the target spacecraft.
考虑控制输入耦合，建立服务航天器对目标航天器的相对位置和姿态一体化耦合动力学模型。
According to the properties of anatomy and physiology of orbit and eye movement, a 3-d eyeball movement model was developed, in which all the six extraocular muscles were concerned.
本文根据眼球的解剖与运动生理特点，提出了眼球在全部六条动眼肌作用下的三维运动模型。
Secondly, this paper gives a detail analysis for mobile communication channel model of low-orbit satellites.
其次，本文对低轨卫星移动通信信道模型进行了详细的分析。
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.
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。
At the same time, on the request to the data refresh rate in high dynamic environment, the paper deduces the rapid extrapolation algorithm of the orbit to replace dynamic model method.
同时，由于高动态环境下对数据更新率的要求，推导出轨道快速外推公式替代动力学方法来计算卫星的在轨位置。
An ingenious pin-and-slot device connecting two gear-wheels induced variations in the representation of lunar motions according to the Hipparchos model of the Moon's elliptical orbit around Earth.
机器的传动装置极富创意，由指针和刻度盘组成的装置连接两个齿轮，其引起的刻度变化代表月球的运行，这符合希帕科斯提出的月球在椭圆形轨道上绕地球运转的模式。
An ingenious pin-and-slot device connecting two gear-wheels induced variations in the representation of lunar motions according to the Hipparchos model of the Moon's elliptical orbit around Earth.
机器的传动装置极富创意，由指针和刻度盘组成的装置连接两个齿轮，其引起的刻度变化代表月球的运行，这符合希帕科斯提出的月球在椭圆形轨道上绕地球运转的模式。
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