Results 101 to 110 of about 41,557 (312)

Machine Learning Interatomic Potentials for Energy Materials: Architectures, Training Strategies, and Applications

open access: yesAdvanced Energy Materials, EarlyView.
Machine learning interatomic potentials bridge quantum accuracy and computational efficiency for materials discovery. Architectures from Gaussian process regression to equivariant graph neural networks, training strategies including active learning and foundation models, and applications in solid‐state electrolytes, batteries, electrocatalysts ...
In Kee Park   +19 more
wiley   +1 more source

Positivity and Asymptotic Stability of Descriptor Linear Systems with Regular Pencils

open access: yesArchives of Control Sciences, 2014
The positivity and asymptotic stability of the descriptor linear continuous-time and discrete-time systems with regular pencils are addressed. Necessary and sufficient conditions for the positivity and asymptotic stability of the systems are established ...
Kaczorek Tadeusz
doaj   +1 more source

Structure and Asymptotic Theory for Nonlinear Models with GARCH Errors [PDF]

open access: yes
Nonlinear time series models, especially those with regime-switching and conditionally heteroskedastic errors, have become increasingly popular in the economics and finance literature.
Michael McAleer   +2 more
core  

Asymptotic stability and asymptotic solutions of second-order differential equations

open access: yes, 2007
We improve, simplify, and extend on quasi-linear case some results on asymptotical stability of ordinary second-order differential equations with complex-valued coefficients obtained in our previous paper [G.R.
Hovhannisyan, Gro
core   +1 more source

Stability Analysis for Fractional-Order Linear Singular Delay Differential Systems

open access: yesDiscrete Dynamics in Nature and Society, 2014
We investigate the delay-independently asymptotic stability of fractional-order linear singular delay differential systems. Based on the algebraic approach, the sufficient conditions are presented to ensure the asymptotic stability for any delay ...
Hai Zhang   +3 more
doaj   +1 more source

Photothermally Enhanced Hydrogel‐Based Thermoelectrochemical Cells for Stable, Passive Harvesting of Low‐Grade Heat

open access: yesAdvanced Energy Materials, EarlyView.
A photothermally enhanced hydrogel‐based thermoelectrochemical cell enables passive conversion of low‐grade heat and solar energy into electricity. The quasi‐solid device achieves high thermopower and stable long‐term operation under passive conditions.
Matteo Bevione   +2 more
wiley   +1 more source

Asymptotic stability, an in-depth treatment

open access: yes, 2012
This chapter defines local pre-asymptotic stability for a compact (closed and bounded) set and studies its properties for systems that are nominally well-posed or well-posed.
Rafal Goebel   +2 more
core   +1 more source

New criterion for asymptotic stability of time-varying dynamical systems [PDF]

open access: yes, 2017
summary:In this paper, we establish some new sufficient conditions for uniform global asymptotic stability for certain classes of nonlinear systems. Lyapunov approach is applied to study exponential stability and stabilization of time-varying systems ...
Hammi, Mekki   +7 more
core   +1 more source

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