Particle decay during inflation: Self-decay of inflaton quantum fluctuations during slow roll [PDF]
Physical Review D, 2005 Particle decay during inflation is studied by implementing a dynamical renormalization group resummation combined with a small Delta expansion. Delta measures the deviation from the scale invariant power spectrum and regulates the infrared. In slow roll inflation, Delta is a simple function of the slow roll parameters epsilon_V, eta_V.We find that ...
D. Boyanovsky +2 more
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Non-linear damping coefficients from an asymmetric roll decay time series: An analytical method
Proceedings of the Institution of Mechanical Engineers Part M: Journal of Engineering for the Maritime Environment, 2004 Kostas J. Spyrou
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Multi‐π‐Stacked Through‐Space Charge‐Transfer Emitters with Accelerated Radiative Decay for High‐Efficiency Organic Light‐Emitting Diodes with Suppressed Efficiency Roll‐Offs [PDF]
Advanced Functional MaterialsThrough‐space charge‐transfer (TSCT) thermally‐activated delayed fluorescence (TADF) emitters have been extensively explored for organic light‐emitting diodes (OLEDs), but their low radiative decay rates (kr,s) have remained a formidable obstacle to ...
Yongjun Song +5 more
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Evidence for inflation in an axion landscape
Journal of High Energy Physics, 2018 We discuss inflation models within supersymmetry and supergravity frameworks with a landscape of chiral superfields and one U(1) shift symmetry which is broken by non-perturbative symmetry breaking terms in the superpotential.
Pran Nath, Maksim Piskunov
doaj +3 more sources
VIRTUAL SHIP’S ROLL DECAY TEST WITH THE USE OF CFD TECHNIQUE
Journal of KONES. Powertrain and Transport, 2016 Przemystaław Krata, Jacek Jachowski
semanticscholar +3 more sources
Validation of a roll decay test of an offshore installation vessel using openfoam [PDF]
, 2019 In this work, the offshore heavy lift DP2 jack-up vessel Innovation from the DEME group is studied using the Computational Fluid Dynamics (CFD) toolbox OpenFOAM. The two-phase Navier-Stokes fluid solver is coupled with a motion solver using a partitioned fluid-structure interaction algorithm.
Brecht Devolder +3 more
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Numerical study of scale effects of viscous roll damping for a container ship
BrodogradnjaIn this paper, the scale effects on a container ship’s roll motion are investigated by numerical approach. The accuracy of the numerical method is verified by comparing numerical results with experimental data through a grid sensitivity study.
Nguyen Thi Ha Phuong +2 more
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Mathematical Model of Roll Decay Motion for a Surfaced Submarine
, 2021 Bir denizaltı için yalpa hareketi diğer gemi hareketlerinin arasında en kritik olanıdır. Özellikle satıh durumunda, aşırı yalpa hareketi denizaltı mürettebatı ve ekipmanı için tehlikeli olabilir. Bu sebeple, aşırı genlikli yalpa hareketlerine maruz kalınmaması için dizayn aşamasında yalpa hareketinin analiz edilmesi gereklidir.
Muhammed Yuşa Cansiz, Burak Yıldız
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Decay of streaks and rolls in plane Couette–Poiseuille flow [PDF]
Journal of Fluid Mechanics, 2021 We report the results of an experimental investigation into the decay of turbulence in plane Couette–Poiseuille flow using ‘quench’ experiments where the flow laminarises after a sudden reduction in Reynolds number $Re$ . Specifically, we study the velocity field in the streamwise–spanwise plane.
T. Liu +5 more
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