Results 41 to 50 of about 107,878,312 (180)

Dual‐Function Electrocatalysis: Simultaneous Wastewater Remediation and Hydrogen Evolution—A Comprehensive Review

open access: yesCarbon Energy, EarlyView.
Replacing the oxygen evolution reaction with the electro‐oxidation of pollutants and waste streams offers an energy‐efficient route for simultaneous hydrogen production and pollutant remediation. This review summarizes the reaction mechanisms, catalyst design principles, and emerging paired‐electrolysis strategies that govern activity, selectivity ...
Safa Al‐Yahyaey   +4 more
wiley   +1 more source

Analysis of Radial Heat Transfer in Cooled Fixed‐Bed Reactors by One‐ and Two‐Dimensional Models

open access: yesChemie Ingenieur Technik, EarlyView.
Exothermic fixed‐bed reactors are analyzed using 1D and 2D models. Radial temperature profiles from the 2D model enable optimization of the 1D approach via adjusted overall heat transfer coefficient. Derived correlations improve prediction accuracy, whereas thermal runaway behavior and model sensitivity are evaluated. ABSTRACT Exothermic reactions in a
Cora Bischoff, Andreas Jess
wiley   +1 more source

Subtractive gamma discrimination technique for neutron diamond detectors operating in mixed radiation fields

open access: yesActa Polytechnica CTU Proceedings
A detection system based on diamond detectors and subtractive discrimination was developed for the measurement of thermal neutrons flux distribution changes during rod drop transient at the VR-1 reactor.
Ondřej Novák   +3 more
doaj   +1 more source

Synthesis and characterization of polymer networks obtained by conventional radical and RAFT copolymerization processes in supercritical carbon dioxide

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Conventional and RAFT dispersion copolymerizations of HEMA and EGDMA in supercritical CO2 are compared in terms of swelling index (crosslink density), morphology, particle size distribution, and modular differential scanning calorimetry. Abstract The syntheses of net‐poly((2‐hydroxyethylene methacrylate)‐co‐(ethylene glycol dimethacrylate ...
Patricia Pérez‐Salinas   +6 more
wiley   +1 more source

Reducing latency when using Virtual Reality for teaching in sport [PDF]

open access: yes, 2008
Latency is a frequently cited shortcoming of Virtual Reality (VR) applications. To compensate for excessive latency, prediction mechanisms may use sophisticated mathematical algorithms, which may not be appropriate for complex virtual teaching ...
Gilbert, Lester   +2 more
core   +2 more sources

Performance Evaluation and Optimization of Ex Situ Hydrogen Biomethanation in a Mesophilic Fed-Batch Reactor

open access: yesApplied Sciences
Ex situ hydrogen biomethanation represents a promising approach to converting surplus renewable electricity into CH4-rich gas through the biological reduction in CO2 with H2, mediated by hydrogenotrophic methanogens.
Arezoo Sharifi   +4 more
doaj   +1 more source

Integrating anaerobic and photochemical processes: UV–vis‐driven post‐treatment for micropollutant abatement and toxicity control in UASB secondary effluent

open access: yesJournal of Chemical Technology &Biotechnology, EarlyView.
Abstract BACKGROUND Upflow anaerobic sludge blanket (UASB) reactors are widely used in low‐ and middle‐income countries, but secondary effluents may still contain organic micropollutants and residual toxicity. This study evaluated UV–Vis photolysis and UV/H2O2 as post‐treatment options for UASB secondary effluent (SE), integrating micropollutant ...
Fernando Rodrigues‐Silva   +10 more
wiley   +1 more source

A perspective on parsimonious hybrid models for online use: Augmenting fundamental models with ARIMA disturbances

open access: yesThe Canadian Journal of Chemical Engineering, Volume 104, Issue 11, Page 5854-5874, November 2026.
Abstract Hybrid models (HMs) combine fundamental model (FM) equations with empirical components. These models can lead to improved predictions because they reduce process/model mismatch and can account for phenomena that are not considered in the FM equations.
Mouna Y. Harb, Kimberley B. McAuley
wiley   +1 more source

Uranium foil neutron activation analysis

open access: yesActa Polytechnica
At the Department of Nuclear Reactors of the Faculty of Nuclear Sciences and Physical Engineering of the Czech Technical University (FNSPE CTU) in Prague, there is a need to implement a neutron activation analysis as a tool for the separation of uranium
Ján Kozic, Milan Štefánik
doaj   +1 more source

Upcycling Cotton–Polyester Textile Waste Into High Quality Biochar and Activated Carbon for Energy Storage Applications

open access: yesEnergy Technology, Volume 14, Issue 11, November 2026.
Mixed cotton–polyester textile waste is transformed through pyrolysis and KOH activation into high‐surface‐area carbons for energy storage. The blend produces the most porous biochar, while cotton‐derived activated carbon reaches 2537 m2/g and 112 F/g. These results reveal how textile composition governs pore development and supercapacitor performance,
Sumon Reza   +9 more
wiley   +1 more source

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