Results 241 to 250 of about 920,691 (290)
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Earth, Moon, and Planets, 1996
The Asteroid Photometric Catalogue was used to redetermine the rotation periods of all asteroids with data in the catalogue. The quality of the period determinations was divided into five groups. The total number of asteroids studied were 710 and 225 of these were considered not to be observed enough to yield any rotation period (code 0).
C. -I. Lagerkvist, Å. Claesson
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The Asteroid Photometric Catalogue was used to redetermine the rotation periods of all asteroids with data in the catalogue. The quality of the period determinations was divided into five groups. The total number of asteroids studied were 710 and 225 of these were considered not to be observed enough to yield any rotation period (code 0).
C. -I. Lagerkvist, Å. Claesson
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Strain Rates and Material Spins
Journal of Elasticity, 1998This work presents a thorough discussion concerning the definition and properties of various material time rates of Lagrangian strain measures, objective corotational rates of Eulerian strain measures, and related spin tensors needed in the formulation of sophisticated constitutive equations of continuum physics (anelasticity, rheological laws ...
Xiao, Heng +2 more
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and spin–spin relaxation rates in CuV2S4
Physica B: Condensed Matter, 1999Abstract 63 Cu and 51 V spin–spin relaxation rates have been measured in CuV2S4 which reveals CDW transition. 63 Cu spin echo decays as Gaussian while 51 V spin echo does as Lorentzian. Both 63 Cu and 51 V spin–spin relaxation rates show remarkable changes due to CDW transition.
Takashi Ohno, Yutaka Kishimoto
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Astrodynamics Conference, 1982
This paper presents the analysis and design of the spin rate control flight algorithm for the dual-spin Galileo spacecraft. Because of thruster plume contamination constraints, only one poorly located thruster is available for spin rate correction in each spin direction.
F. EKE, G. MAN
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This paper presents the analysis and design of the spin rate control flight algorithm for the dual-spin Galileo spacecraft. Because of thruster plume contamination constraints, only one poorly located thruster is available for spin rate correction in each spin direction.
F. EKE, G. MAN
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Spinning solar sail orbit steering via spin rate control
Advances in Space Research, 2011Abstract The orbit of a solar sail can be controlled by changing the attitude of the spacecraft. In this study, we consider the spinning solar power sail IKAROS (Interplanetary Kite-craft Accelerated by Radiation Of the Sun), which is managed by Japan Aerospace Exploration Agency (JAXA).
Yuya Mimasu +5 more
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Triplet spin-lattice relaxation rates from spin-echo saturation recovery
Journal of Magnetic Resonance (1969), 1981Abstract A method of determining the spin-lattice relaxation rates in a triplet state is described for the example of ground-state diphenylmethylene in 1,1-diphenylethylene single crystals at 1.2 K. The rates are determined from the biexponential recovery of the two-pulse spin echo after a saturating microwave pulse.
D.C Doetschman, B.J Botter
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Ball spin in the tennis serve: spin rate and axis of rotation
Sports Biomechanics, 2013The purpose of this study was to describe three-dimensional ball kinematics including spin axis and spin rate for the flat, slice, and kick serves executed by elite male tennis players. Trajectories of three retro-reflective markers attached to the surface of the ball were measured using a Vicon MX motion analysis system. The local coordinate system of
Shinji, Sakurai +2 more
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Anisotropic nuclear spin relaxation rate
Physics Letters A, 1989Abstract We calculate the dipolar interaction contribution to the nuclear spin relaxation time T 1 in an anisotropic superconductor. It is argued that such a contribution plays a major role in some heavy fermion superconductors and gives rise to a strongly anisotropic relaxation rate due to the coupling between the order parameter and the applied ...
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IEEE Journal of Quantum Electronics, 1967
An alternative to ring lasers for spin-rate sensing is proposed, which is less sensitive but potentially more compact. It consists of a two-mirror CW laser supporting a higher-order TEM pl Laguerre-Gaussian mode of the ring type, isolated by means of a uniform annular distribution of net gain.
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An alternative to ring lasers for spin-rate sensing is proposed, which is less sensitive but potentially more compact. It consists of a two-mirror CW laser supporting a higher-order TEM pl Laguerre-Gaussian mode of the ring type, isolated by means of a uniform annular distribution of net gain.
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