Results 21 to 30 of about 3,032,384 (304)

Recent applications of ionic liquids in quasi-solid-state lithium metal batteries

open access: yesGreen Chemical Engineering, 2021
Quasi-solid-state lithium metal batteries are considered as one of the most promising energy storage devices, and the application of ionic liquids (ILs) as a new generation of functionalized electrolyte components in lithium metal batteries has become ...
Jiajia Li   +5 more
doaj   +1 more source

Insights into the effects of oriented crystallization on the performance of quasi-two-dimensional perovskite solar cells

open access: yesNext Materials, 2023
Long-term operational stability is one of the key problems for the commercialization of the perovskite photovoltaics. During the past decade, a tremendous amount of work has aimed at addressing the stability issues of perovskite solar cells (PSCs). Among
Ruixuan Jiang   +7 more
doaj   +1 more source

Postoptimal analysis of one lexicographic combinatorial problem with non-linear criteria [PDF]

open access: yesComputer Science Journal of Moldova, 2009
In this article we consider a multicriteria combinatorial problem with ordered MINMIN criteria. We obtain necessary and sufficient conditions of that type of stability to the initial data perturbations for which all lexicographic optima of the original ...
Vladimir A. Emelichev, Olga V. Karelkina
doaj  

On Doitchinov's quietness for arbitrary quasi-uniform spaces [PDF]

open access: yes, 2010
The notion of a quiet quasi-uniform space was introduced by Doitchinov in1988 when he developed an interesting completion theory for this class ofquasi-uniform spaces.
Kivuvu, Charly Makitu
core   +1 more source

Quasi-geostrophic vortices in compressible atmospheres [PDF]

open access: yes, 2005
This paper considers the effect of an exponential variation in the background density field (as exists in compressible atmospheres) on the structure and dynamics of the quasi-geostrophic system, and compares the results with the corresponding Boussinesq ...
Scott, Richard Kirkness   +1 more
core   +1 more source

Stability Criteria for Regular Matrix Polynomials via Taylor Coefficients

open access: yesMathematics
This paper presents criteria for Hurwitz stability and quasi-stability of regular matrix polynomials with possibly singular leading coefficients, for application to the stability analysis of differential-algebraic systems. The proposed framework involves
Xuzhou Zhan, Xiang Gao, Yongjian Hu
doaj   +1 more source

On quasi-stability of the vector Boolean problem of minimizing absolute deviations of linear functions from zero [PDF]

open access: yesComputer Science Journal of Moldova, 2006
We consider a multi-criterion Boolean programming problem with partial criteria of the kind MIN MODUL of linear functions. We investigate such type of stability which can be understood as a discrete analogue of the Hausdorff lower semi-continuity.
Vladimir A. Emelichev   +1 more
doaj  

Stability of the Fréchet Equation in Quasi-Banach Spaces

open access: yesMathematics, 2020
We investigate the Hyers–Ulam stability of the well-known Fréchet functional equation that comes from a characterization of inner product spaces. We also show its hyperstability on a restricted domain. We work in the framework of quasi-Banach spaces.
Sang Og Kim
doaj   +1 more source

On quasistability of a vector combinatorial problem with \Sigma-MINMAX and \Sigma-MINMIN partial criteria [PDF]

open access: yesComputer Science Journal of Moldova, 2004
We consider one type of stability (quasistability) of a vector combinatorial problem of finding the Pareto set. Under quasistability we understand a discrete analogue of lower semicontinuity by Hausdorff of the many-valued mapping, which defines the ...
Vladimir A. Emelichev   +2 more
doaj  

Stability of Functional Equations in Dislocated Quasi-Metric Spaces

open access: yesAnnales Mathematicae Silesianae, 2018
We present a result on the generalized Hyers-Ulam stability of a functional equation in a single variable for functions that have values in a complete dislocated quasi-metric space.
Hejmej Beata
doaj   +1 more source

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