Results 11 to 20 of about 16,628 (253)
CW Emission and Self-Pulsing in a III-V/SiN Hybrid Laser With Narrow Band Mirror
IEEE Photonics Journal, 2022 We report on how external cavity III-V/SiN hybrid lasers operate in regimes of ultra-damped relaxation oscillations or in CW unstable dynamical regimes (self-pulsing or approaching turbulence) as a consequence of mirror dispersion, non-zero linewidth ...
Cristina Rimoldi +4 more
doaj +1 more source
Nuclear Fusion, 2023 Flux-tube (local) gyrokinetic codes are widely used to simulate drift-wave turbulence in magnetic confinement devices. While a large number of studies show that flux-tube codes provide an excellent approximation for turbulent transport in medium-large ...
A. Di Siena +10 more
doaj +1 more source
Unstable and stable regimes of polariton condensation [PDF]
Optica, 2018 Modulational instabilities play a key role in a wide range of nonlinear optical phenomena, leading e.g. to the formation of spatial and temporal solitons, rogue waves and chaotic dynamics. Here we experimentally demonstrate the existence of a modulational instability in condensates of cavity polaritons, arising from the strong coupling of cavity ...
Baboux, F. +12 more
openaire +2 more sources
JEBIS (Jurnal Ekonomi dan Bisnis Islam), 2023 This study investigates the effect of Islamic bank financings on banks' profitability during two distinct periods, namely stable and unstable conditions. This study also examines the profitability tendencies of banks during the two periods mentioned.
Wahyu Wibisono Wahid +5 more
doaj +1 more source
Universal scaling of extinction time in stochastic evolutionary dynamics
Scientific Reports, 2022 Evolutionary dynamics is well captured by the replicator equations when the population is infinite and well-mixed. However, the extinction dynamics is modified with finite and structured populations. Experiments on the non-transitive ecosystem containing
Ching-I Huang +2 more
doaj +1 more source
Depth Dependence and Keyhole Stability at Threshold, for Different Laser Welding Regimes
Applied Sciences, 2020 Depending of the laser operating parameters, several characteristic regimes of laser welding can be observed. At low welding speeds, the aspect ratio of the keyhole can be rather large with a rather vertical cylindrical shape, whereas at high welding ...
Remy Fabbro
doaj +1 more source
Scientific Reports, 2022 The results of the harmonic balance method (HBM) for a nonlinear system generally show nonlinear response curves with primary, super-, and sub-harmonic resonances. In addition, the stability conditions can be examined by employing Hill’s method. However,
Jong-Yun Yoon, Byeongil Kim
doaj +1 more source
Shearing box simulations in the Rayleigh unstable regime [PDF]
Monthly Notices of the Royal Astronomical Society, 2017 We study the stability properties of Rayleigh unstable flows both in the purely hydrodynamic and magnetohydrodynamic (MHD) regimes for two different values of the shear $q=2.1, 4.2$ ($q = - d\lnΩ/ d\ln r$) and compare it with the Keplerian case $q=1.5$.
Nauman, Farrukh, Blackman, Eric G.
openaire +3 more sources
Energetics in the Charney Problem with a Generic Stratosphere
Tellus: Series A, Dynamic Meteorology and Oceanography, 2022 This paper reports a complete diagnosis of energetics of the three representative structurally distinct unstable modes in the Charney problem with a generic stratosphere presented in Mak et al (2021).
Mankin Mak, Siyu Zhao
doaj +1 more source
Hall magnetohydrodynamic reconnection in the plasmoid unstable regime [PDF]
Physics of Plasmas, 2011 A set of reduced Hall magnetohydrodynamic (MHD) equations are used to evaluate the stability of large aspect ratio current sheets to the formation of plasmoids (secondary islands). Reconnection is driven by resistivity in this analysis, which occurs at the resistive skin depth dη≡SL-1/2LνA/γ, where SL is the Lundquist number, L, the length of the ...
Baalrud, S. D. +3 more
openaire +2 more sources