Results 31 to 40 of about 2,276,164 (335)
A two-point boundary value problem on a Lorentz manifold arising in A. Poltorak's concept of reference frame [PDF]
, 2006 In A. Poltorak's concept, the reference frame in General Relativity is a certain manifold equipped with a connection. The question under consideration here is whether it is possible to join two events in the space-time by a time-like geodesic if they are
Gliklikh Yu.E +5 more
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Recherches Sociologiques et Anthropologiques, 2013 The goal of this article is to show how, from a simple concept, “active ageing” was gradually transformed into an international frame of reference in public policies on the subject of ageing.
Thibauld Moulaert +1 more
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A computational model of the referential semantics of projective prepositions [PDF]
, 2006 In this paper we present a framework for interpreting locative expressions containing the prepositions in front of and behind. These prepositions have different semantics in the viewer-centred and intrinsic frames of reference (Vandeloise, 1991).
Kelleher, John D., van Genabith, Josef
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A Unified Global Reference Frame of Vertical Crustal Movements by Satellite Laser Ranging
Sensors, 2016 Crustal movement is one of the main factors influencing the change of the Earth system, especially in its vertical direction, which affects people’s daily life through the frequent occurrence of earthquakes, geological disasters, and so on.
Xinhui Zhu +3 more
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Frontiers in Human Neuroscience, 2015 Several studies have demonstrated a dissociation of the effects of illusion on perception and action, with perception generally reported to be susceptible to illusions, while actions are seemingly immune.
Paul eDassonville, Scott Allan Reed
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Different roles of alpha and beta band oscillations in sensorimotor gating
Frontiers in Human Neuroscience, 2014 Alpha (8-12Hz) and beta band (18-30Hz) oscillations have been implicated in sensory anticipation and motor preparation. Here, using magneto-encephalography, we tested whether they have distinct functional roles in a saccade task that induces a remapping ...
Verena Nadine Buchholz +3 more
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Should there be a spin-rotation coupling for a Dirac particle? [PDF]
, 2013 It was argued by Mashhoon that a spin-rotation coupling term should add to the Hamiltonian operator in a rotating frame, as compared with the one in an inertial frame.
Arminjon, Mayeul
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SIRGAS reference frame analysis at DGFI–TUM
Journal of Geodetic Science, 2022 The Deutsches Geodätisches Forschungsinstitut (DGFI) has been involved in the research activities of the Latin American Reference Frame SIRGAS since its establishment in 1993.
Sánchez Laura +3 more
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Coordinated Control of Wind Energy Conversion System during Unsymmetrical Fault at Grid
Energies, 2022 High penetration of wind power into the grid necessitates the coordinated action of wind energy conversion systems and the grid. A suitable generation control is required to fulfill the grid integration requirements, especially during faults.
Hemant Ahuja +4 more
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Video analysis using a shaking camera
Revista Brasileira de Ensino de Física, 2021 To perform a reliable video analysis, it is mandatory to avoid shaking the camera while taking the video, normally using a tripod for smartphones/cameras. But there are some situations which the only chance to make the video is using your hands and it is
V. L. B. de Jesus, D. G. G. Sasaki
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