Results 11 to 20 of about 815,331 (254)
Boundary Between Stable and Unstable Regimes of Accretion
We investigated the boundary between stable and unstable regimes of accretion and its dependence on different parameters. Simulations were performed using a “cubed sphere" code with high grid resolution (244 grid points in the azimuthal direction), which
Blinova A. A. +2 more
doaj +3 more sources
A globally stable attractor that is locally unstable everywhere [PDF]
We construct two examples of invariant manifolds that despite being locally unstable at every point in the transverse direction are globally stable. Using numerical simulations we show that these invariant manifolds temporarily repel nearby trajectories ...
Phanindra Tallapragada +1 more
doaj +4 more sources
Performances of the ITER Pressure Suppression System during unstable steam condensation regimes [PDF]
The paper deals with the qualification of the main safety system of the nuclear fusion reactor ITER: the Vacuum Vessel Pressure Suppression System. This safety system manages the Loss of Coolant Accident, that could occur in the Vacuum Vessel, avoiding a
L. Berti +5 more
doaj +2 more sources
Manifold reconnection in chaotic regimes [PDF]
In this paper we extend the concept of separatrix reconnection into chaotic regimes. We show that even under chaotic conditions one can still understand enhanced diffusion in phase space in terms of relatively smooth rearrangements of stable and unstable
Corso, Gilberto Luiz +3 more
core +2 more sources
Hybrid Regimes and Political (Dis)Order [PDF]
This paper studies the concept of “hybrid regimes”, not so much in defining and authenticating their functionality but, above all, to exhibit them as so-called “partial” constitutional concepts.
Ficek, Ryszard
core +3 more sources
Stable and unstable flow regimes for active fluids in the periodic setting [PDF]
Depending on the involved physiobiological parameters, stable or unstable behavior in active fluids is observed. In this paper a rigorous analytical justification of (in-)stability within the corresponding regimes is given.
Bui, Christiane +2 more
core +1 more source
Ergodic transition in a simple model of the continuous double auction. [PDF]
We study a phenomenological model for the continuous double auction, whose aggregate order process is equivalent to two independent M/M/1 queues. The continuous double auction defines a continuous-time random walk for trade prices.
Tijana Radivojević +2 more
doaj +1 more source
Populismo e Autoritarismo – Uma breve reflexão teórica
The 21st century is characterized by the re-emergence of populist solutions in various geographical areas of the world. This phenomenon does not adopt a single model but is based on a diversity of measures, rules, intensities, and ways of implementing ...
Bruno Ferreira da Costa
doaj +1 more source
Asymptotic inference for nearly unstable AR(p) processes [PDF]
In this paper nearly unstable AR( p) processes (in other words, models with characteristic roots near the unit circle) are studied. Our main aim is to describe the asymptotic behavior of the least-squares estimators of the coefficients.
van Zuijlen, Martien C. A. +5 more
core +1 more source
Theory of chiral edge state lasing in a two-dimensional topological system
We theoretically study topological laser operation in a bosonic Harper-Hofstadter model featuring a saturable optical gain. Crucial consequences of the chirality of the lasing edge modes are highlighted, such as a sharp dependence of the lasing threshold
Matteo Seclì +2 more
doaj +1 more source

