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Basic Earth's Parameters as estimated from VLBI observations
Geodesy and Geodynamics, 2017 The global Very Long Baseline Interferometry observation for measuring the Earth rotation's parameters was launched around 1970s. Since then the precision of the measurements is continuously improving by taking into account various instrumental and ...
Ping Zhu +3 more
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Nutation and Reference Frame [PDF]
Highlights of Astronomy, 1995 The reference frames are of fundamental importance in all kinds of the precession and nutation studies involving the theory, the coordinate transformation and the observations. The aim of this paper is to review all the frames used in such studies and to lead to a better consistency between them in order that theory and reductions of observations be ...
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The Earth's Constitution and the Nutations [PDF]
Symposium - International Astronomical Union, 1980 The theoretical researches on this subject were first developed in a consistent theory, in 1765, by Euler, who studied the theory of the motion of a rotating rigid body. Bradley shortly before, in 1737, had discovered the first forced nutation, with a period of 18.6 years, which was explained by d'Alembert.
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On the coupling between magnetic field and nutation in a numerical integration approach
, 2011 Nutation amplitudes are computed in a displacement field approach that incorporates the influence of a prescribed magnetic field inside the Earth's core. The existence of relative nutational motions between the liquid core and its surrounding solid parts
Huang, C.-L. +12 more
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The geometry of larmor nutation [PDF]
, 2002 The nutation accompanying the well-known Larmor precession discussed with respect to an inertial frame in an earlier paper is now considered in the rotating Larmor frame where the precession is absent and the nutation is therefore fully emphasized. It is
Gopala Rao, A.V. +5 more
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MathematicsIn view of the problems of the complex design, difficult machining, and high manufacturing cost of a traditional nutation reducer, this paper intends to design a nutation reducer and study its meshing performance.
Haoyu Chen, Qinghai Li, Chao Jia
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Shapiro like steps reveals molecular nanomagnets’ spin dynamics
AIP Advances, 2015 We present an accurate way to detect spin dynamics of a nutating molecular nanomagnet by inserting it in a tunnel Josephson junction and studying the current voltage (I-V) characteristic.
Babak Abdollahipour +2 more
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EVALUATION OF OUTER CORE VISCOSITY INFLUENCE ON THE EARTH FORCED NUTATION
Odessa Astronomical Publications, 2007 On the base of the combined method, consisting of the Sasao, Okubo, Saito (1980) approach with the iteration procedure, allowing couple finite element method with the solution of the Laplace equation, it have evaluated the influence of outer core ...
M. V. Lubkov
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Unexpected proof of the diurnal nutation [PDF]
, 1890 The proof of the diurnal nutation is confirmed by a new determination: the Strasbourg meridian circle azimuth variations.La preuve de la nutation diurne est confirmée par une nouvelle détermination: les variations de l’azimut du cercle méridien de ...
Folie, François
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Optimal Design of Single-stage Double-arc Spiral Bevel Gear Nutation Reducer
Jixie chuandong, 2020 According to the nutation motion principle，a new single-stage double circular-arc spiral bevel gear nutation reducer with simple structure and large transmission ratio is designed， and its transmission ratio calculation formula is obtained.
Zheng Lin +3 more
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