نتایج جستجو برای: sulfur components

تعداد نتایج: 421130  

Journal: :Chimica techno acta 2023

The task of this article is to update, develop and introduce into scientific practice the method "mechanochemical recrystallization" in solid-phase systems with small additives liquid phase solvent precursors stabilize formed nanoparticles. essence shown using example mechanical activation S–AgNO3–NH4X system, where X = Cl, Br, I, addition dimethyl sulfoxide (DMSO), resulting mechanochemical sy...

AB Zaree Mahmoudabad J Pirzad M Saberi

In this study the role of glutathione (GSH) in sulfur mustard -induced oxidative stress and cytotoxicity, in human skin fibroblast cell line (HF2FF) was evaluated. Sulfur mustard-induced superoxide radical and hydrogen peroxide formation were evaluated by determination of superoxide dismutase and catalase activity in cell lysate. The cytotoxicity of sulfur mustard was estimated by lactate dehyd...

Journal: :iranian journal of pharmaceutical research 0
ab zaree mahmoudabad m saberi j pirzad

in this study the role of glutathione (gsh) in sulfur mustard -induced oxidative stress and cytotoxicity, in human skin fibroblast cell line (hf2ff) was evaluated. sulfur mustard-induced superoxide radical and hydrogen peroxide formation were evaluated by determination of superoxide dismutase and catalase activity in cell lysate. the cytotoxicity of sulfur mustard was estimated by lactate dehyd...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2010
farahnaz eghbali mohammad reza ehsani

sulfur emission from coal combustion presents many environmental problems. the techniques used to reduce the amount of sulfur in coal before combustion, include physical, chemical and biological processes.biological processes based on degradation of sulfur compounds by microorganisms offer many advantages over the conventional physical and chemical processes. the processes are performed under m...

Journal: :journal of computational & applied research in mechanical engineering (jcarme) 2012
s. mohammadi* f. abdi

in the presented work, sulfur concrete and rubber were used for producing functionally graded materials (fgm). the physical and mechanical properties of sulfur concrete and rubber were changed continuously across the thickness. on one side, there was just rubber and, on the other, there was pure sulfur; the properties of each substance were moved to reach another. this kind of material was cons...

Journal: :World Journal Of Advanced Research and Reviews 2023

Heavy metals are one of the components that threaten human health and ecosystem most among air pollution, which has become a global problem. Sulfur, an important pollutant, is not only serious threat to at high concentrations, but also extremely dangerous for constitutes significant part pollutant load in many cities. Therefore, monitoring change sulfur pollution very important. In this study, ...

Journal: :Carbon energy 2021

Rechargeable lithium/sodium–sulfur batteries working at room temperature (RT-Li/S, RT-Na/S) appear to be a promising energy storage system in terms of high theoretical density, low cost, and abundant resources nature. They are, thus, considered as highly attractive candidates for future application devices. Nevertheless, the solubility sulfur species, sluggish kinetics lithium/sodium sulfide co...

Journal: :The Plant cell 2010
David González-Ballester David Casero Shawn Cokus Matteo Pellegrini Sabeeha S Merchant Arthur R Grossman

The Chlamydomonas reinhardtii transcriptome was characterized from nutrient-replete and sulfur-depleted wild-type and snrk2.1 mutant cells. This mutant is null for the regulatory Ser-Thr kinase SNRK2.1, which is required for acclimation of the alga to sulfur deprivation. The transcriptome analyses used microarray hybridization and RNA-seq technology. Quantitative RT-PCR evaluation of the result...

2007
Stephen Kirby Chunshan Song

Coal liquefaction involves cleavage of methylene and dimethylene and ethertype bridges connecting polycyclic aromatic units. The selected compounds for model coal liquefaction reactions are 4-( 1-naphthylmethy1)bibenzyl (NMBB) and several oxygen-containing compounds. This report mainly describes the synthesis and screening of selected iron and molybdenum compounds as precursors of dispersed cat...

Journal: :The Journal of biological chemistry 2014
Yvonne Stockdreher Marga Sturm Michaele Josten Hans-Georg Sahl Nadine Dobler Renate Zigann Christiane Dahl

The formation of periplasmic sulfur globules is an intermediate step during the oxidation of reduced sulfur compounds in various sulfur-oxidizing microorganisms. The mechanism of how this sulfur is activated and crosses the cytoplasmic membrane for further oxidation to sulfite by the dissimilatory reductase DsrAB is incompletely understood, but it has been well documented that the pathway invol...

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