Results 31 to 40 of about 1,691 (159)

Rapid response to the M$_{\protect \rm w}$ 4.9 earthquake of November 11, 2019 in Le Teil, Lower Rhône Valley, France

Comptes Rendus. Géoscience, 2021
On November 11, 2019, a M$_{\mathrm{w}}$ 4.9 earthquake hit the region close to Montelimar (lower Rhône Valley, France), on the eastern margin of the Massif Central close to the external part of the Alps.
Cornou, Cécile, Ampuero, Jean-Paul, Aubert, Coralie, Audin, Laurence, Baize, Stéphane, Billant, Jérémy, Brenguier, Florent, Causse, Mathieu, Chlieh, Mohamed, Combey, Andy, de Michele, Marcello, Delouis, Bertrand, Deschamps, Anne, Ferry, Matthieu, Foumelis, Michalis, Froment, Bérénice, Gélis, Céline, Grandin, Raphaël, Grasso, Jean-Robert, Hannouz, Estelle, Hok, Sébastien, Jung, Axel, Jolivet, Romain, Langlais, Mickaël, Langlaude, Philippe, Larroque, Christophe, Leloup, Philippe Hervé, Manchuel, Kevin, Marconato, Léo, Maron, Christophe, Mathot, Emmanuel, Maufroy, Emeline, Mercerat, Diego, Metois, Marianne, Nayman, Emmanuelle, Pondaven, Ildut, Provost, Ludmila, Régnier, Julie, Ritz, Jean-François, Rivet, Diane, Schlupp, Antoine, Sladen, Anthony, Voisin, Christophe, Walpersdorf, Andrea, Wolynieck, David, Allemand, Pascal, Beck, Elise, Bertrand, Etienne, Bertrand, Véronique, Briole, Pierre, Brunel, Didier, Cavalié, Olivier, Chèze, Jérôme, Courboulex, Françoise, Douste-Bacque, Isabelle, Dretzen, Rémi, Giampietro, Tiziano, Godano, Maxime, Grandjean, Philippe, Grunberg, Marc, Guerin, Gauthier, Guillot, Stéphane, Haber, Elias El, Hernandez, Alain, Jomard, Hervé, Lasserre, Cécile, Liang, Chao, Lior, Itzhak, Martin, Xavier, Mata, Daniel, Menager, Marine, Mercier, Antoine, Mordret, Aurélien, Oral, Elif, Paul, Anne, Peix, Fabrice, Pequegnat, Catherine, Pernoud, Michel, Satriano, Claudio, Sassi, Rihab, Schaming, Marc, Sellier, Valérie, Sira, Christophe, Socquet, Anne, Sue, Christian, Trilla, Aurélie, Vallée, Martin, van den Ende, Martijn, Vernant, Philippe, Vial, Benjamin, Weng, Huihui   +90 more
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Transient Dynamics and Propagation of Voltage and Frequency Fluctuations in Transmission Grids

IEEE Access, 2023
The energy transition towards increased electric power production from renewable energy (RE) resources creates new challenges to ensure the stability of power grids. In conventional power grids voltage fluctuations can be controlled locally.
Kosisochukwu P. Nnoli, Fahrudin Delic, Stefan Kettemann   +2 more
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Bell’s twin rockets non-inertial length enigma resolved by real geometry

Results in Physics, 2017
A priori uniformity and monotonicity of the ‘non-inertial length’ expansion of a uniformly co-accelerating medium, uniquely yield an unfamiliar ‘hemicoid’ real-values metric surface ϒ in R3.
Brian Coleman
doaj   +1 more source

Geodesics in reductive homogeneous spaces [PDF]

Tsukuba Journal of Mathematics, 1995
The author studies geodesics in reductive homogeneous spaces satisfying certain conditions. He shows that some Kähler \(C\)-spaces with second Betti number equal to one and connected semisimple Lie groups with certain left invariant metrics are examples of those spaces.
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Riemannian generalized C-spaces with homogeneous geodesics [PDF]

Filomat, 2019
We investigate homogeneous geodesics in a class of homogeneous spaces G/K' called generalized C-spaces. We give necessary conditions so that a G-invariant metric on G/K' is a g.o. metric.
Arvanitoyeorgos, Andreas, Qin, Huajun, Wang, Yu, Zhao, Guosong   +3 more
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Liouville solution in General Relativity with a scalar field

Physics Letters B
New one parameter family of exact solutions in General Relativity with a scalar field has been found. The metric is of Liouville type which admits complete separation of variables in the geodesic Hamilton–Jacobi equation.
D.E. Afanasev, M.O. Katanaev
doaj   +1 more source

Homogeneous geodesics in homogeneous Finsler spaces

Journal of Geometry and Physics, 2007
In this paper, we study homogeneous geodesics in homogeneous Finsler spaces. We first give a simple criterion that characterizes geodesic vectors. We show that the geodesics on a Lie group, relative to a bi-invariant Finsler metric, are the cosets of the one-parameter subgroups.
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Study of complexity factor and stability of dynamical systems in $$f(\mathcal {G})$$ f ( G ) gravity

European Physical Journal C: Particles and Fields
In this paper, we evaluate the complexity of the non static cylindrical geometry with anisotropic matter configuration in the framework of modified Gauss–Bonnet theory.
M. Zeeshan Gul, W. Ahmad, M. M. M. Nasir, Faisal Javed, Orhan Donmez, Bander Almutairi   +5 more
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Quasi-Uniform Density Non-Solid Infill Strategy for Axisymmetric Non-Planar Additive Manufacturing

Applied Sciences
Non-solid infill generation in Non-Planar Additive Manufacturing (NPAM) is still an open problem. This is due to mathematical complexities from curvature distortion, as well as bridging limitations inherent in some NPAM processes.
Alvaro Guzman-Bautista, Adrián López-Arrabal, Elio Sanchez-Oro-Aguado, Andrea Fernández Gorgojo, Ramiro García-Galán, Francisco J. Badesa, Antonio Vizan-Idoipe   +6 more
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The existence of light‐like homogeneous geodesics in homogeneous Lorentzian manifolds [PDF]

Mathematische Nachrichten, 2015
In previous papers, a fundamental affine method for studying homogeneous geodesics was developed. Using this method and elementary differential topology it was proved that any homogeneous affine manifold and in particular any homogeneous pseudo‐Riemannian manifold admits a homogeneous geodesic through arbitrary point.
openaire   +2 more sources