Results 121 to 130 of about 486,149 (332)
Finite Element Modeling of a Thermoplastic Polyurethane Ball for Rolling Seismic Isolation
Earthquake Engineering &Structural Dynamics, EarlyView.ABSTRACT The Elastomeric‐Ball Pendulum (EBP) system, which consists of an elastomeric ball rolling on a spherical concrete surface, has been proposed as an isolation system for lightweight structures. Experimental tests have shown that the mechanics of such a rolling ball are remarkably complicated because the vertical load changes the shape of the ...
Sergio I. Reyes +2 more
wiley +1 more source
International Journal for Numerical Methods in Fluids, EarlyView.A hybrid RANS‐LES turbulence model adapted for the Moving Particle Semi‐implicit method is employed to investigate a turbulent free surface flow. A method based on the cell‐linked list is proposed to speed up the nearest wall search for the turbulence model.
Fabio Kenji Motezuki +3 more
wiley +1 more source
Generalized Poincaré algebras and Lovelock–Cartan gravity theory
Physics Letters B, 2015 We show that the Lagrangian for Lovelock–Cartan gravity theory can be reformulated as an action which leads to General Relativity in a certain limit. In odd dimensions the Lagrangian leads to a Chern–Simons theory invariant under the generalized Poincaré
P.K. Concha +3 more
doaj +1 more source
ELECTROWEAK EFFECTIVE LAGRANGIANS [PDF]
International Journal of Modern Physics A, 1994 In this paper I review several aspects of the use of effective Lagrangians in (mainly) electroweak physics. The conditions under which this approach is reliable and useful, as well as the limitations of the formalism, are detailed. Various applications are also presented.
openaire +2 more sources
Downdraft Devices for Negative Emissions—Quantification Study and Environmental Implication
Greenhouse Gases: Science and Technology, EarlyView.ABSTRACT Methane (CH4) is a potent greenhouse gas with a global warming potential far exceeding that of CO2 over short time horizons. Its removal from the atmosphere remains challenging due to its low ambient concentration and chemical stability. This study explores downdraft energy towers (DETs) as an innovative CH4 mitigation technology that enhances
Xiaokun Yao +4 more
wiley +1 more source
Lagrangian Modelling and Motion Stability of Synchronous Generator-based Power Systems
CSEE Journal of Power and Energy SystemsThis paper proposes to analyze the motion stability of synchronous generator-based power systems using a Lagrangian model derived in the configuration space of generalized position and speed.
Feng Ji, Lu Gao, Chang Lin
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Classical Higgs fields on gauge gluon bundles
EPJ Web of Conferences, 2016 Classical Higgs fields and related canonical conserved quantities are defined by invariant variational problems on suitably defined gauge gluon bundles. We consider Lagrangian field theories which are assumed to be invariant with respect to the action of
Palese Marcella, Winterroth Ekkehart
doaj +1 more source
Nuclear Physics B, 2015 It is known, though not commonly, that one can describe fermions using a second order in derivatives Lagrangian instead of the first order Dirac one.
Johnny Espin, Kirill Krasnov
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Lagrangian Function on the Finite State Space Statistical Bundle [PDF]
, 2018 Giovanni Pistone
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