Results 41 to 50 of about 17,380,414 (202)

Asymptotic solutions of boundary value problem for singularly perturbed system of differential-algebraic equations

Karpatsʹkì Matematičnì Publìkacìï, 2022
This paper deals with the boundary value problem for a singularly perturbed system of differential algebraic equations of the second order. The case of simple roots of the characteristic equation is studied.
P.F. Samusenko, M.B. Vira
doaj   +1 more source

From Laboratory Performance to Industrial Reality: A Review Fuzing Proton Exchange Membrane Electrolyzer Component Degradation and Impact on Levelized Cost of Hydrogen

ChemElectroChem, Volume 13, Issue 19, 1 October 2026.
A comprehensive review bridging laboratory innovation with industrial‐scale PEM electrolyzer challenges, focusing on component degradation mechanisms and their direct impact on the levelized cost of hydrogen. This work highlights the critical need for scalable, durable designs and standardized testing to accelerate the green hydrogen economy.
Yuanye Huang, Sha Li, Carolin Sophie Igel, Peter Bouwman   +3 more
wiley   +1 more source

Mittag-Leffler string stability of singularly perturbed stochastic systems within local fractal space

Mathematical Modelling and Analysis, 2019
In this paper, we define a new type of string stability based on Mittag-Leffler function so-called Mittag-Leffler (p\alpha)-string stability. This kind of stability for a class of singularly perturbed stochastic systems of fractional order will be ...
Khosro Sayevand
doaj   +1 more source

Hepatocyte Growth Hormone Receptor Ablation Is Associated With Aging Phenotypes and Hepatic Mitochondrial Dysfunction

Aging Cell, Volume 25, Issue 10, October 2026.
Hepatocyte‐specific GHR ablation is associated with hepatic and age‐related pathologies, triggering adipose‐liver crosstalk via elevated circulating GH and subsequent CD36‐dependent hepatic steatosis. This loss impairs STAT5b phosphorylation and enhances PPARγ nuclear activation, upregulating Pdk4 and Cd36 to drive mitochondrial dysfunction and ectopic
Kangkang Yang, Yuli Jian, Fusheng Pang, Ming Ying, Qian Yang, Nian Liu, Shujing Wang, Yingjie Wu   +7 more
wiley   +1 more source

A boundary jumps phenomenon in the integral boundary value problem for singularly perturbed differential equations

Қарағанды университетінің хабаршысы. Математика сериясы, 2020
The article is devoted to the study of the asymptotic behavior of solving an integral boundary value problem for a third - order linear differential equation with a small parameter for two higher derivatives, provided that the roots of the "additional ...
N.U. Bukanay, A.E. Mirzakulova, M.K. Dauylbayev, K.T. Konisbayeva   +3 more
doaj  

Parameter uniform numerical method for fourth order singularly perturbed turning point problems exhibiting boundary layers

Ain Shams Engineering Journal, 2018
In this paper, a numerical method based on Shishkin mesh for a singularly perturbed fourth order differential equation with a turning point exhibiting boundary layers is presented. In this method the problem is transformed into a weakly coupled system of
N. Geetha, A. Tamilselvan
doaj   +1 more source

Elevated B‐vitamins within a temperate estuary: Strong spatiotemporal dynamics and links to microbial plankton communities

Limnology and Oceanography, Volume 71, Issue 9, September 2026.
Abstract B‐vitamins are organic cofactors required by prokaryotic and eukaryotic planktonic cells; their availability impacts aquatic microbial communities and associated biogeochemistry. Despite their ecological importance, B‐vitamin dynamics and their relationships to plankton composition in estuaries are unclear, limiting our understanding of ...
Meriel J. Bittner, Catherine C. Bannon, Elden Rowland, Gregor Luetzenburg, Erin M. Bertrand, Lasse Riemann, Ryan W. Paerl   +6 more
wiley   +1 more source

Asymptotic solutions of a singularly perturbed integro-differential system with an unstable spectral value of exponential inhomogeneity

Учёные записки Казанского университета: Серия Физико-математические науки
This article examines an integro-differential singularly perturbed initial value problem with exponential inhomogeneity and with a spectral value that turns zero at an isolated point in time.
A. A. Bobojanov, B. T. Kalimbetov, V. F. Safonov   +2 more
doaj   +1 more source

Robust Control of Wind Turbines by Using Singular Perturbation Method and Linear Parameter Varying Model

Journal of Control Science and Engineering, 2016
The maximum power point tracking problem of variable-speed wind turbine systems is studied in this paper. The wind conversion systems contain both mechanical part and electromagnetic part, which means the systems have time scale property.
Yan Zhang, Zhengfan Liu, Zhong Yang, Haifei Si   +3 more
doaj   +1 more source

Not all Temperature Shocks are Alike: Disentangling Heat and High Temperature Shocks and Their Effects on Inflation in Australia

Economic Record, Volume 102, Issue 338, Page 323-349, September 2026.
We study the effects of heat and high temperature shocks on inflation in Australia using monthly, state‐level temperature anomaly data via two stages. In the first stage, we decompose temperature anomalies into orthogonal components using a structural vector autoregression with long‐run restrictions.
Tan Dat Huynh, Mengheng Li
wiley   +1 more source