Results 21 to 30 of about 815,331 (254)

A Fluid Approach to Nonlinear Mode Coupling in a Dissipative Plasma [PDF]

open access: yesJournal of Nuclear Research and Applications, 2023
The nonlinear dynamics of wave turbulence in a dissipative magnetized plasma system, comprised hot electrons and cold ions, are investigated using the hydrodynamical type of nonlinearity.
N. Nassiri-Mofakham
doaj   +1 more source

Unstable Crystallographic & Molecular Structures for Machine Learning of System Energies

open access: yes, 2020
- Augmented-QM9 molecular structures at unstable positions -- augm-qm9-{train,test,valid}.json- Periodic crystal structures at unstable positions -- periodic-al-cu-crystal.json- Finite-sized crystal structures at unstable positions -- scaled-finite ...
Christian Klinke (12293354)   +2 more
core   +1 more source

STRUCTURAL IDENTIFICATION TECHNOLOGY AND SUBSEQUENT SYNTHESIS OF OPTIMAL STABILIZATION SYSTEMS OF UNSTABLE DYNAMICAL OBJECTS

open access: yesМіжнародний науково-технічний журнал "Проблеми керування та інформатики", 2007
Substantiated and convenient for practical application technology is suggested enabling one to perform effectively the stages of structural identification of models of dynamics of multidimensional unstable linear stationary objects, on the one hand with
L.N. Blokhin   +2 more
doaj   +1 more source

Detecting safe operational regimes of synchronous motor‐generator pair for wind integration: A non‐linear perspective

open access: yesIET Energy Systems Integration, 2023
In this article, the stability of a synchronous motor generator pair (SMGP) used for improving the inertia of grid‐connected renewable energy systems is investigated.
Rajesh Tanna   +3 more
doaj   +1 more source

Harmonizing sound and light: X-ray imaging unveils acoustic signatures of stochastic inter-regime instabilities during laser melting

open access: yesNature Communications, 2023
Laser powder bed fusion (LPBF) is a metal additive manufacturing technique involving complex interplays between vapor, liquid, and solid phases. Despite LPBF’s advantageous capabilities compared to conventional manufacturing methods, the underlying ...
Milad Hamidi Nasab   +13 more
doaj   +1 more source

Effect of Oil Prices on Exchange Rate Movements in Korea and Japan Using Markov Regime-Switching Models

open access: yesEnergies, 2020
We examined the effects of oil prices along with fundamental economic variables on exchange rate movements in the Korean and Japanese foreign exchange markets, using two-regime Markov Regime Switching Models (MRSMs) over the period from January 1991 to ...
Suyi Kim, So-Yeun Kim, Kyungmee Choi
doaj   +1 more source

Age-structured Delayed SIPCV Epidemic Model of HPV and Cervical Cancer Cells Dynamics II. Convergence of Numerical Solution

open access: yesBiomath, 2022
The numerical method for simulation of age-structured SIPCV epidemic model with age-structured sub-classes of susceptible, infectious, precancerous and cancer cells and unstructured population of human papilloma virus (HPV) dynamics with incubation ...
Vitalii V. Akimenko, Fajar Adi-Kusumo
doaj   +1 more source

On Balancing and Order Reduction of Unstable Periodic Systems [PDF]

open access: yes, 2001
Abstract: We consider the direct application of balancing techniques to unstable periodic systems by extending the balancing concepts to arbitrary periodic systems. We extend first the balancing concepts to unstable discrete-time systems by defining the
A. Varga, Varga, Andras
core   +1 more source

Unified Friction Formulation from Laminar to Fully Rough Turbulent Flow

open access: yesApplied Sciences, 2018
This paper provides a new unified formula for Newtonian fluids valid for all pipe flow regimes from laminar to fully rough turbulent flow. This includes laminar flow; the unstable sharp jump from laminar to turbulent flow; and all types of turbulent ...
Dejan Brkić, Pavel Praks
doaj   +1 more source

Complex dynamics near extinction in a predator-prey model with ratio dependence and Holling type III functional response

open access: yesFrontiers in Applied Mathematics and Statistics, 2022
In this paper, we analyze a recently proposed predator-prey model with ratio dependence and Holling type III functional response, with particular emphasis on the dynamics close to extinction.
Konstantin B. Blyuss   +2 more
doaj   +1 more source

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