Results 11 to 20 of about 482,367 (262)
Operational Quantum Reference Frame Transformations [PDF]
QuantumQuantum reference frames are needed in quantum theory for much the same reasons that reference frames are in classical theories: to manifest invariance in line with fundamental relativity principles and to provide a basis for the definition of observable
Titouan Carette +2 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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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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Frontiers in Integrative Neuroscience, 2011 The motor layers of the superior colliculus (SC) are thought to specify saccade amplitude and direction, independent of initial eye position. However, recent evidence suggests that eye position can modulate the level of activity of SC motor neurons.
Jennifer M Groh +3 more
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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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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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Reduced Reference Frame Transformation Assessment in Unbalanced Three-Phase Four-Wire Systems
IEEE Access, 2023 Three-phase four-wire systems require a reference frame similar to that used in 3-phase 3-wire system configurations that allow them to be easily analysed, modelled and controlled.
Francisco Casado-Machado +3 more
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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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Blazars define a stable celestial reference frame
Astronomy & AstrophysicsContext. Recent work has shown that optical-radio position offsets and radio position variability are inversely correlated with the optical photometric variability of active galactic nuclei (AGN).
Secrest N. J., Lambert S.
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