Results 21 to 30 of about 153,907 (307)

Effects of elemental sulfur and sulfur-bearing minerals on the thermal evolution of aromatic compounds in solid bitumen

open access: yesShiyou shiyan dizhi, 2021
Previous studies have shown that some of the aromatic compound parameters have good correlation with the maturity of organic matter. However, it is still unknown whether the widely used aromatic maturity-related parameters are available with the co ...
Yanyan ZHANG   +4 more
doaj   +1 more source

Análise de compostos sulfurados em efluentes gasosos de refinaria de petróleo Analysis of sulfur compounds in petroleum refinery gaseous effluents

open access: yesQuímica Nova, 2010
This work discusses an analytical procedure for analysis of sulfur compounds in treated petroleum refinery gaseous effluents using a sulfur chemiluminescence detector with dual plasma burner (SCD-DP).
Júlio Carlos Afonso   +1 more
doaj   +1 more source

Metabolism of sulfur compounds in homocystinurias [PDF]

open access: yesBritish Journal of Pharmacology, 2018
Background and PurposeHomocystinurias are rare genetic defects characterized by altered fluxes of sulfur compounds including homocysteine and cysteine. We explored whether the severely perturbed sulfur amino acid metabolism in patients with homocystinurias affects the metabolism of hydrogen sulfide.Experimental ApproachWe studied 10 treated patients ...
Viktor Kožich   +6 more
openaire   +2 more sources

Sulfur-Containing Phenolic Compounds from the Cave Soil-Derived Aspergillus fumigatus GZWMJZ-152

open access: yes, 2022
Six new sulfur-containing phenolic compounds (1–6) and their putative metabolic precursors (7–9) were isolated from the cave soil-derived fungus Aspergillus fumigatus GZWMJZ-152. Compound 1 represents an unusual benzophenone–diketopiperazine hybrid via a
Wen Liu (39804)   +8 more
core   +4 more sources

In the Alphaproteobacterium Hyphomicrobium denitrificans SoxR Serves a Sulfane Sulfur-Responsive Repressor of Sulfur Oxidation

open access: yesAntioxidants, 2023
In organisms that use reduced sulfur compounds as alternative or additional electron donors to organic compounds, transcriptional regulation of genes for enzymes involved in sulfur oxidation is needed to adjust metabolic flux to environmental conditions.
Jingjing Li   +5 more
doaj   +1 more source

Physiology of purple sulfur bacteria forming macroscopic aggregates in Great Sippewissett Salt Marsh, Massachusetts [PDF]

open access: yes, 1993
Purple bacterial aggregates found in tidal pools of Great Sippewissett Salt Marsh (Falmouth, Cape Cod, MA) were investigated in order to elucidate the ecological significance of cell aggregation. Purple sulfur bacteria were the dominant microorganisms in
Seitz, A. P.   +2 more
core   +1 more source

The significance of glucosinolates for sulfur storage in Brassicaceae seedlings

open access: yesFrontiers in Plant Science, 2014
Brassica juncea seedlings contained a two-fold higher glucosinolate content than Brassica rapa and these secondary sulfur compounds accounted for up to 30 % of the organic sulfur fraction.
Luit J. eDe Kok
doaj   +1 more source

Application of sulfur-based composite materials in the positive electrode of lithium-sulfur batteries [PDF]

open access: yesE3S Web of Conferences
Traditional lithium-ion batteries are no longer able to keep up with the growing need for energy storage efficiency in areas like electric cars and renewable energy storage.
Li Tonglin
doaj   +1 more source

Sulfur compounds in still and sparkling wines and in Grappa: analytical and technological aspects

open access: yes, 2011
Grape products are really important in the cultural and dietary Italian traditions. Oenological products have been largely studied since the early ’70s, even if the lack of biochemical and microbiological knowledge and poor sensitivity of the analytical ...
Bruno Fedrizzi   +11 more
core   +2 more sources

Assessment of the Oxidative Desulfurization of Middle Distillate Surrogate Fuels with Spectroscopic Techniques

open access: yesJournal of Analytical Methods in Chemistry, 2020
The oxidative desulfurization of five (5) model sulfur compounds and eleven (11) surrogate blends was investigated using the hydrogen peroxide (H2O2)-acetic acid (CH3COOH) system.
Eleni Syntyhaki   +2 more
doaj   +1 more source

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