Results 51 to 60 of about 276 (121)

Poisson flows in single class open networks of quasireversible queues

open access: yesStochastic Processes and their Applications, 1982
AbstractThis paper analyzes open networks of quasireversible nodes with a single class of customers and in equilibrium. A simple argument shows, under a stability conditions, that a flow on a link of such a network is Poisson if and only if the link is not part of a loop.
openaire   +2 more sources

A Novel Vanadium–Titanium Redox Flow Battery with Enhanced Electrochemical Performance & Greener Alternative

open access: yesChemElectroChem, Volume 13, Issue 1, January 2026.
A novel vanadium–titanium redox flow battery is demonstrated using V5+/V4+ and Ti3+/Ti4+ electrolytes, delivering stable cycling (>150 cycles), high coulombic efficiency (>95%), and low‐cost operation. Ionic‐liquid‐based catholytes and SPEEK membranes further enhance sustainability while maintaining an appreciable electrochemical performance.
Kalyan Sundar Krishna Chivukula   +1 more
wiley   +1 more source

Bis(phenolate) N‐Heterocyclic Carbene [OCO] Pincer Ligands: A Unique Family for the Stabilization of Transition Metal Centers and Main Group Elements

open access: yesChemistryEurope, Volume 4, Issue 1, January 2026.
This review highlights the coordination chemistry of NHC bis‐phenolate ligands with metal centers, emphasizing structural features, redox and optical properties, and catalytic applications. Key roles in polymerization, nitrogen reduction catalysis, and small molecule activation are discussed, showcasing the versatility and potential of [OCO]M complexes
Johanna Frey   +3 more
wiley   +1 more source

Stabilized quasi-reversibility method for a class of nonlinear ill-posed problems

open access: yesElectronic Journal of Differential Equations, 2008
In this paper, we study a final value problem for the nonlinear parabolic equation $$displaylines{ u_t+Au =h(u(t),t),quad ...
Nguyen Huy Tuan, Dang Duc Trong
doaj  

Rules to transform concentrations and currents for irreversible reactions to those of quasireversible reactions [PDF]

open access: yesElectrochimica Acta, 2015
Abstract Transformation rules are given that take the concentration or current expressions for the simple irreversible electron-transfer reaction R → P + e − and convert them to the corresponding quantities for the quasireversible reaction. They apply for many standard electrochemical mass-transport cases, including simple diffusion and convection ...
openaire   +1 more source

Ternary CQD‐TiO2–MnO2 Nanocomposite‐Enabled Aptasensor for Rapid and Sensitive Detection of Cryptosporidium

open access: yesElectroanalysis, Volume 38, Issue 1, January 2026.
The modification of the glassy carbon electrode with carbon quantum dot‐titanium dioxide‐manganese dioxide (CQD‐TiO2–MnO2) and the immobilization of the aptamer have significantly enhanced the performance of the newly developed aptasensor. This improvement has led to better electrochemical performance, an increased electroactive surface area ...
Indiphile Nompetsheni   +3 more
wiley   +1 more source

Manganese Oxide as an Electrochemical Sensor for Carbamazepine and Sulfamethoxazole in Wastewater Samples

open access: yesChemistryOpen, Volume 15, Issue 1, January 2026.
A manganese oxide (MnO2) nanoparticle‐modified screen‐printed carbon electrode enables sensitive and simultaneous electrochemical detection of carbamazepine and sulfamethoxazole in wastewater, demonstrating improved oxidation signals and enhanced analytical performance for pharmaceutical monitoring. The extensive use of pharmaceutical compounds poses a
Pheladi Lizzy Mokaba   +5 more
wiley   +1 more source

Overview of Inverse Problems [PDF]

open access: yes, 2012
Introduction - Definitions Areas of Use - Historical Development Different Approaches to Solving Inverse Problems Functional analysis Regularization of Ill-Posed Problems Stochastic or Bayesian Inversion ...
Argoul, Pierre
core   +2 more sources

Electrochemical Studies of Cobalt(II) diphenylazodioxide Complexes [PDF]

open access: yes, 2020
The electrochemical behavior of the unusual cobalt(II) diphenylazodioxide complex salts [Co(az)4](PF6)2 1 and [Co(bpy)(az)2](PF6)2 2 has been studied by cyclic voltammetry.
Alsabony, Mohamed N.   +7 more
core   +1 more source

Photoinduced Radical Cations Enable Anti‐Kasha Emission in a Pyrene‐Based Azacationic Ladder Polymer

open access: yesSmall Science, Volume 6, Issue 1, January 2026.
Dual emission from a novel conjugated azacationic ladder polymer containing pyrene is observed in solution: conventional emission at 780 nm from S1 → S0 transitions of cationic units and anti‐Kasha emission (D3 → D0) at 490 nm from photogenerated radical cationic sites.
Paulo D. Nunes Barradas   +2 more
wiley   +1 more source

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