Results 11 to 20 of about 176,188,335 (190)
Effect of winding harmonics on the asynchronous torque of a single-phase line start permanant-magnet motor [PDF]
, 2005 This paper presents an analytical method for calculating the effect of winding harmonics on the asynchronous torque of a single-phase line-start permanent-magnet motor.
McGilp, M.I. +5 more
core +9 more sources
Comparison of Swarm and GRACE time-variable gravity field at low degree spherical harmonics
, 2021 International audienceThe GRACE and GRACE Follow-On missions provide monthly time-variable gravity field estimates since 2002 with a 11-month gap between 2017-2018.
Lecomte, Hugo +2 more
core +3 more sources
The viability of modified gravity theories [PDF]
, 2009 PhDThis thesis studies the viability of classes of modified gravity (MG) theories based on generalisations of the Einstein-Hilbert action. Particular emphasis is given to f(R) theories in both the metric and Palatini formalisms, scalar-tensor theories ...
Uddin, Kotub
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A proposal for a Bohmian ontology of quantum gravity [PDF]
, 2013 The paper shows how the Bohmian approach to quantum physics can be applied to develop a clear and coherent ontology of non-perturbative quantum gravity.
Michael Esfeldy +7 more
core +1 more source
Frontiers in Astronomy and Space Sciences, 2019 This paper investigates the long-term evolution of spacecraft in Highly Elliptical Orbits (HEOs). The single averaged disturbing potential due to luni-solar perturbations, zonal harmonics of the Earth gravity field is written in mean Keplerian elements ...
Camilla Colombo
doaj +1 more source
Space Gravity Spectroscopy - determination of the Earth’s gravitational field by means of Newton interpolated LEO ephemeris Case studies on dynamic (CHAMP Rapid Science Orbit) and kinematic orbits [PDF]
Advances in Geosciences, 2003 An algorithm for the (kinematic) orbit analysis of a Low Earth Orbiting (LEO) GPS tracked satellite to determine the spherical harmonic coefficients of the terrestrial gravitational field is presented.
T. Reubelt, G. Austen, E. W. Grafarend
doaj
Contributions to Geophysics and Geodesy, 2010 We derive the expressions for computing the ice density contrast stripping corrections to the topography corrected gravity field quantities by means of the spherical harmonics.
Robert TENZER +3 more
doaj +1 more source
SPACETIME OR QUANTUM PARTICLES: THE ONTOLOGY OF QUANTUM GRAVITY? [PDF]
, 1996 The domains of quantum theory and general relativity overlap in situations where quantum mechanical effects cannot be ignored. In order to deal with this overlap of theoretical domains, there has been a tendency to apply the rules of quantum field theory
Peter J. Riggs +2 more
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Advanced Functional Materials, EarlyView.A hybrid additive manufacturing platform integrates direct droplet writing of metallic composite with VAT photopolymerization to fabricate architected soft magnetic composites. This approach enables microscale patterning of high‐viscosity materials for programmable actuators, adaptive fluidic devices, and switchable adhesives, offering tunable ...
Yeowon Yoon +4 more
wiley +1 more source
Crustal structure of the spreading plate boundary in Iceland and the north Atlantic from gravity data [PDF]
, 1994 Gravity datasets from two geothermal areas in Iceland, an Iceland-wide gravity dataset, and marine gravity data from the Reykjanes Ridge at 58˚N, which can be seen as the submarine extension of the Icelandic accretionary system, have been studied in this
Field, Paul R.
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