Results 41 to 50 of about 9,050,649 (204)

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

open access: yesChemElectroChem, 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   +3 more
wiley   +1 more source

Spikes for the two-dimensional Gierer-Meinhardt system: The weak coupling case [PDF]

open access: yes, 2001
In this paper, we rigorously prove the existence and stability of multiple-peaked patterns for the singularly perturbed Gierer-Meinhardt system in a two dimensional domain which are far from spatial homogeneity.
Winter, M, Wei, J
core   +1 more source

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

open access: yesAging 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   +7 more
wiley   +1 more source

On one scenario for changing the stability of invariant manifolds of singularly perturbed systems

open access: yesВестник Самарского университета: Естественнонаучная серия
The article is devoted to the peculiarities of stability change of slow invariant manifolds of singularly perturbed systems of ordinary differential equations.
Olga S. Kipkaeva
doaj   +1 more source

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

open access: yesLimnology 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   +6 more
wiley   +1 more source

H∞ Control Observer-Based for Discrete-Time Singularly Perturbed Systems With Nonlinear Disturbances

open access: yesIEEE Access, 2022
This paper focuses on the $H\infty $ observer-based control problem for discrete-time singularly perturbed systems (DTSPSs) with nonlinear disturbances. The main contributions of this paper include three aspects: First, a proper observer is constructed.
Wei Liu, Xuejie Que, Yanyan Wang
doaj   +1 more source

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

open access: yesEconomic 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

Pore Occupancy of Ice

open access: yesWater Resources Research, Volume 62, Issue 8, August 2026.
Abstract Ice forms seasonally in mid‐latitude soils, and permanently as permafrost in arctic sediments. Ice blocks some of the pore space, altering the flow of both liquid water and gas. Here, we determine the equilibrium position of ice in a three‐phase ice/water/gas system by minimizing the free energy of the system.
David DiCarlo   +2 more
wiley   +1 more source

Relaxation Cycles in a Generalized Neuron Model with Two Delays

open access: yesМоделирование и анализ информационных систем, 2013
A method of modeling the phenomenon of bursting behavior in neural systems based on delay equations is proposed. A singularly perturbed scalar nonlinear differentialdifference equation of Volterra type is a mathematical model of a neuron and a separate ...
S. D. Glyzin, E. A. Marushkina
doaj   +3 more sources

Adaptive Control for Singularly Perturbed Systems

open access: yesIEEE Open Journal of Control Systems
Singularly perturbed systems are a class of mathematical systems that are not well approximated by their limits and can be used to model plants with multiple fast and slow states.
Kameron Eves, John Valasek
doaj   +1 more source

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