Results 11 to 20 of about 396,665 (316)

Metal reduction kinetics inShewanella [PDF]

Bioinformatics, 2007
AbstractMotivation: Metal reduction kinetics have been studied in cultures of dissimilatory metal reducing bacteria which include the Shewanella oneidensis strain MR-1. Estimation of system parameters from time-series data faces obstructions in the implementation depending on the choice of the mathematical model that captures the observed dynamics. The
Raman, Lall, Julie, Mitchell
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Reduction mechanism of titanomagnetite concentrate by carbon monoxide [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy, 2013
Titanomagnetite concentrate was reduced by CO-Ar gas mixtures in a laboratory fixed bed reactor in the temperature range from 1123 to 1323 K. The influences of reductive conditions on the reduction rate and metallization degree including ...
Sun H.Y., Dong X.J., She X.F., Xue Q.G., Wang J.S.   +4 more
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Effect of water vapor on the reduction kinetics of hematite powder by hydrogen-water vapor in different stages [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy, 2023
The powder of the hematite sample was isothermally reduced with a hydrogen-water vapor gas mixture at 1023K-1273K. The results indicate that the overall reduction process of hematite can be divided into three stages (Fe2O3-Fe3O4-FeO-Fe) each of which ...
Mao X.-D., Hu X.-J., Fan Y.-W., Chou K-.C.   +3 more
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Kinetic Equation for Soliton Gas: Integrable Reductions [PDF]

Journal of Nonlinear Science, 2022
AbstractMacroscopic dynamics of soliton gases can be analytically described by the thermodynamic limit of the Whitham equations, yielding an integro-differential kinetic equation for the density of states. Under a delta-functional ansatz, the kinetic equation for soliton gas reduces to a non-diagonalisable system of hydrodynamic type whose matrix ...
E.V. Ferapontov, M. V. Pavlov
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Reduction of Ferric Iron in Hydrometallurgical Solutions Using Zero-Valent Iron

Materials Proceedings, 2022
Most hydrometallurgical solutions usually contain high levels of ferric iron, which is often regarded as a major and problematic impurity. Precipitation of Fe(III) by raising the solution pH results in a voluminous amorphous residue that is particularly ...
Christiana Mystrioti, Nymphodora Papassiopi, Anthimos Xenidis   +2 more
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Hyperbolic Model Reduction for Kinetic Equations

, 2022
AbstractWe make a brief historical review of the moment model reduction for the kinetic equations, particularly Grad’s moment method for Boltzmann equation. We focus on the hyperbolicity of the reduced model, which is essential for the existence of its classical solution as a Cauchy problem. The theory of the framework we developed in the past years is
Zhenning Cai, Yuwei Fan, Ruo Li
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Proton‐Mediated and Ir‐Catalyzed Iron/Iron‐Oxide Redox Kinetics for Enhanced Rechargeability and Durability of Solid Oxide Iron–Air Battery

Advanced Science, 2022
Long duration energy storage (LDES) is an economically attractive approach to accelerating clean renewable energy deployment. The newly emerged solid oxide iron–air battery (SOIAB) is intrinsically suited for LDES applications due to its excellent low ...
Qiming Tang, Chaitali Morey, Yongliang Zhang, Nansheng Xu, Shichen Sun, Kevin Huang   +5 more
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Structure evolution in the reduction process of FeO powder by hydrogen

工程科学学报, 2015
The isothermal hydrogen reduction kinetics of FeO powder at 773-1273 K was investigated by thermogravimetry. Above 873 K, there was a turning point in the kinetic curve, which indicated that the reduction mechanism changed.
YANG Xiao-bo, HU Xiao-jun, CHEN Zhi-yuan, DANG Jie, FANG Fei, ZHOU Guo-zhi   +5 more
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2-Butyl-2-tert-butyl-5,5-diethylpyrrolidine-1-oxyls: Synthesis and Properties

Molecules, 2020
Nitroxides are broadly used as molecular probes and labels in biophysics, structural biology, and biomedical research. Resistance of a nitroxide group bearing an unpaired electron to chemical reduction with low-molecular-weight antioxidants and enzymatic
Irina F. Zhurko, Sergey Dobrynin, Artem A. Gorodetskii, Yuri I. Glazachev, Tatyana V. Rybalova, Elena I. Chernyak, Nargiz Asanbaeva, Elena G. Bagryanskaya, Igor A. Kirilyuk   +8 more
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Kinetics of carbothermic reduction of synthetic chromite [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy, 2014
In order to optimize the current reduction process of chromite, a good knowledge of reduction mechanism involved is required. The basic component in chromite ore is FeCr2O4, thus, kinetic investigation of synthetic FeCr2O4 with different amount ...
Wang Y., Wang L., Yu J., Chou K.C.
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