nutation

Measuring Nutation Period with Non-contact Vertical Target[J].

引用该论文 高昕,单长胜,李建安,许峰.

People who have this nutation mutation need less sleep than others.

有这种突变的人比其他人需要更少的睡眠。

In this paper,some deficiencies in IAU nutation theory are discussed.

本文讨论了 IAU 章动理论的某些缺陷。

A parameter design method of nutation cross-feedback control is investigated.

研究了章动交叉反馈校正的参数设计方法。

For climbers nutation increases the likelihood of a solid support being found.

攀缘植物往往也具有转头运动。

This person says: "Do nutation only later and lie, not more was saved?

这人便说:“以后只做垂头而卧的,不就更省了吗?”

In this paper, the definition of the Celestial Ephemeris Pole (CEP) in the 1980 IAU Theory of Nutation is discussed.

本文讨论了1980 IAU章动理论中关于天球历书极的定义。

Since the adoption of the IAU 1980 theory of nutation, the reference pole is the celestial ephemeris pole (CEP).

1984年起,采用 IAU 1980章动理论,选取天球历书极作为参考极。

The Earth dynamical flattening plays an important role in the computations of nutation theory.

地球动力学扁率在章动理论的计算中也是一 个重要的物理量。

English astronomer who discovered the aberration of light (1728) and the earth's nutation (1748).

布拉德利,詹姆斯:(1693-1762)英国天文学家,他发现了光偏移(1728年)和地球章动(1748年)

J2 perturbation makes the relative orbit drift in the in-track direction, nutation or procession.

J2摄动对相对轨道的影响分为相对轨道构形的漂移、相对轨道平面的章动和进动。

His about aroused my heart medium fondly, I slowly nutation body, the kiss that uses me sealed his mouth.

他的模样激起了我心中的怜爱,我慢慢地俯下身子,用我的吻封住了他的嘴。

See dentist nutation body goes saying in her side side only: "It is he kisses you, also won't be aware of.

只见牙医俯下身去在她耳边说:“就是他吻你,也不会察觉。”

But keep at in mind that the scientists say this nutation mutated gene may be rare.

但记住科学家说的,这种突变基因是非常稀少的。

The international research progress of the non-rigid Earth nutation is reviewed briefly.

对目前国际上有关非刚体地球章动研究的进展作了简要回顾。

Gradually and alternatively loosen the fastening nut and fasten the adjusting nut to eliminate nutation of the extending cable of the boom.

逐渐交替地拧松锁紧螺母,拧紧调整螺母以便减少起重臂外伸钢丝绳的下垂现象。

In Solidworks/DDM system, the kinematical and dynamical simulations of the virtual prototype of nutation drive are implemented.

完成了基于Solidworks/DDM系统的双圆弧螺旋锥齿轮章动传动三维虚拟样机的运动学、动力学实时仿真;

The computation of nutation series and the estimation of the earth orientation parameters (EOP) make use of an intermediate pole.

章动序列计算和地球定向参数测定需要一个中间的天球参考极作参照。

Author found that the inland researches to nutation gear decelerating transmission mostly get off to theoretical phase by now.

作者通过查阅大量的资料和文献发现,至今为止,国内对章动齿轮减速传动的研究大多处于理论阶段。

Vibration and forced nutation can be brought by imbalance of seeker gyro rotor which can reduce performance and life of the seeker system.

转子上的不平衡会给位标器陀螺带来振动和绕动,影响系统的性能和寿命。

Vector nature of angular momentum, precession, conservation of vector angular momentum (its transfer between parts of a system), nutation.

角动量的矢量特性,进动,角动量守恒(它在系统内部之间的转移),章动。

Based on FK5 and DE405 ephemeris, the paper analyzed the influence of relativity, precession, nutation and aberration on apparent position calculation of star.

基于FK5及DE405星表数据文件,考虑相对论效应、岁差、章动、光行差影响,采用天文矢量处理方法,提出高精度恒星视位置计算数学模型。

The values of the Earth dynamical flattening, used in IAU 1980 nutation theory, are inconsistent, so that it products an influence on the nutation amplitude.

IAU1 980章动理论中采用了一个不一致的地球动力学扁率值 ,从而影响了章动振幅的计算。

Its values, determined from different kinds of observations and models are reviewed.Moreover, its relation to precession and its effect on nutation computation are discussed.

介绍了由不同的观测方法和模型给出的地球动力学扁率值,并讨论了它与岁差的关系和对章动计 算的影响。

In order to improve the amplitudes of the rigid Earth nutation series, it become necessary to revise the IAU 1976 value of the general precession in longitude.

非刚体地球章动的转换函数中所采用的简正模频率和常数都直接或间接地依赖 地球动力学扁率值。

Precession and nutation of top and gyrosscope is discussed by elementary method,equations of motion are solved using simplified models, and an elementary analysis is made.

用初等方法讨论了陀螺与陀螺仪的进动及章动,用简化模型求解了运动方程,并给出了它们的初等分析。

The increasing accuracy of modern observations requires to take into account its influence on the nutation amplitudes at the level of a few microarcseconds.

随着观测和计算精度的提高,地球动力学扁率值的不一致 将影响章动振幅的计算。

Our model of the non-rigid Earth nutation and related works are introduced, and the trend and the prior research fields of this research work are also discussed.

重点介绍了包含海洋和大气的非刚体地球章动模型和有关研究工作,并对将来的发展方向作了讨论。

Therefore, nutation gear speed reducer drive is a kind of new-style, high efficiency and economical speed reducer drive, and it has very developmental future.

因此,章动齿轮减速传动装置是一种新型、高效、经济的减速传动装置,具有很大的发展前途。

The test results show that, the liquid sloshing in sphere-cone tanks may resonate with satellite nutation, and nutating divergent time constant will be shapoly reduced.

试验结果表明,球锥贮箱液体晃动可能与卫星章动共振,而使章动发散时间常数剧烈下降。

The angular difference between the astronomical axis and the axis of figure, called a" nutation", causes an Earth orbital spirical oscillation, known as the famous Chandler" wobble".

在天文学轴和形状轴之间的角度差称做“章动”,引起地球轨道螺旋摆动,就是著名的卡南德尔“摆动”。

The on-orbit result showed that the gird registration of clouds imaging for FY-2C satellite was better than 1 visible pixel,and the nutation angle and swing angle met the requirements for design.

飞行试验结果表明,C星的云图网格配准精度优于1个可见像素,章动角和摇摆角也符合设计要求。

This paper presents the basic construction and movement rules of the coordinator gyrorotor with reticle of Archimedes spiral reticule pattern, Also, it explains the principles and methods of dynamical balance to damp the vibration and forced nutation.

阐述了具有阿基米德螺旋线图案的位标器的基本原理及其运动规律,并说明这种陀螺转子的振动与绕动的平衡原理与方法。

The motion of the celestial ephemeris pole with respect to the spatial frame is called nutation (including precession),and that with respect to the terrestrial frame is called polar motion.

通过引进章动坐标系相对惯性参照系的转动角速度随时间的变化,导出了一个可同时解出章动和极移的地球自转方程,用这个方程可同时研究地球的强迫和自由转动。

Nutation gear drive system is a kind of bevel gear transmission system which has big axial angle contoured structure that is designed with nutation"s mathematical and physical conceptions.

章动齿轮传动系统是应用章动的数学与物理概念,开发设计出的一类具有大轴角外形结构的锥齿轮传动系统。

The interpretation and selection for different values of the Earth dynamical flattening will have to be approached in the construction of the future nutation theory of a non-rigid Earth.

在建立非刚体地球章动理论中,如何解释地球动力学扁率值的差异,如何选取地球动力学 扁率值,还有待进一步的研究。

The old person is illiterate, the son will believe, look for me to read aloud, when I read aloud a letter, old person bend is worn the back sits on bench, nutation is listening, silent as the grave.

老人不识字,儿子来了信,便找我念,我念信时,老人弓着背坐在凳子上,垂头听着,一言不发。

Study was conducted on the change of fresh weight,moisture and the aril total-sugar of logan before and after the fruit cluster nutation by choosing the extremely serotinous variety-Lidongben.

以晚熟龙眼品种立冬本为试材,研究了果穗垂头前后果实鲜重、各组织的水分及假种皮总糖的变化。

Optimization of Internal Bevel Gear Nutation Drive

锥齿轮少齿差章动传动的优化设计

nutation [uncontrollable nodding of the head]

点头病

United control of attitude & nutation

姿章联控遥

Earth s free core nutation parameters

地球自由核章动参数

POLAR MIGRATION AND NUTATION OF CIP AXIS OF RIGID EARTH

刚体地球CIP轴的极移和岁差章动

Dynamic theory of the Earth's inner core and nutation efficiency

地球内核的动力学理论及章动效应

Measuring Nutation Period with Non-contact Vertical Target

弹丸章动周期的光学立靶测量法

On the Research Progress of the Non-rigid Earth Nutation

有关非刚体地球章动研究的进展

Linear CCD array cameras intersect measurement for nutation angle

利用线列CCD像机交汇测量弹丸攻角

nutation of vertical nutation

锤线的章动

active nutation damper system

有源章动阻尼系统

Keywords Urinary iodine;Salt iodine;Milk iodine;Iodine nutation;

尿碘;盐碘;乳汁碘;碘营养;