Results 21 to 30 of about 707,147 (312)

Insights into the size effect of ZnCr2O4 spinel oxide in composite catalysts for conversion of syngas to aromatics

open access: yesGreen Energy & Environment, 2023
Direct conversion of syngas to aromatics (STA) over oxide-zeolite composite catalysts is promising as an alternative method for aromatics production. However, the structural effect of the oxide component in composite catalysts is still ambiguous. Herein,
Yi Fu   +7 more
doaj  

Screening low-methanol and high-aroma produced yeasts for cider fermentation by transcriptive characterization

open access: yesFrontiers in Microbiology, 2022
The commercial active dry yeast strains used for cider production in China are far behind the requirements of the cider industry development in recent decades.
Liang Liu   +6 more
doaj   +1 more source

Mechanism of methanol oxidation by quinoprotein methanol dehydrogenase [PDF]

open access: yesProceedings of the National Academy of Sciences, 2007
At neutral pH, oxidation of CH 3 OH → CH 2 O by an o -quinone requires general-base catalysis and the reaction is endothermic. The active-site –CO 2 − groups of Glu-171 and Asp-297 (Glu-171–CO 2 ...
Xiao-Dong Zhang   +2 more
openaire   +3 more sources

Uncovering the Diversity and Activity of Methylotrophic Methanogens in Freshwater Wetland Soils

open access: yesmSystems, 2019
Wetland soils are one of the largest natural contributors to the emission of methane, a potent greenhouse gas. Currently, microbial contributions to methane emissions from these systems emphasize the roles of acetoclastic and hydrogenotrophic methanogens,
Adrienne B. Narrowe   +12 more
doaj   +1 more source

Crystal size sensitivity of HMOR zeolite in dimethyl ether carbonylation

open access: yesCatalysis Communications, 2021
The effect of crystal size of HMOR from micro size to 50 nm, with the apparent similar acid site density, on catalytic performance for the dimethyl ether (DME) carbonylation was investigated. The crystal size of HMOR is sensitive to the deactivation rate
Fuli Wen   +4 more
doaj  

Drunken lipid membranes, not drunken SNARE proteins, promote fusion in a model of neurotransmitter release

open access: yesFrontiers in Molecular Neuroscience, 2022
Alcohol affects many neuronal proteins that are upstream or down-stream of synaptic vesicle fusion and neurotransmitter release. Less well studied is alcohol’s effect on the fusion machinery including SNARE proteins and lipid membranes.
Robert E. Coffman   +6 more
doaj   +1 more source

Progresses of hyperpolarized 129Xe NMR application in porous materials and catalysis

open access: yesMagnetic Resonance Letters, 2021
129Xe NMR has been proven to be a powerful tool to investigate the structure of porous materials. Xenon is a monatomic noble gas which could be used as a probe due to the extremely sensitive to its local environment.
Benhan Fan   +3 more
doaj  

Influence of additional methanol on both pre- and post-denitrification processes in treating municipal wastewater

open access: yesWater Science and Technology, 2022
Changes in functional properties of biological denitrification in the long-term use of methanol were explored in both pre- and post-denitrification processes.
Fang-Fang Yin, Hui-Fang Guo
doaj   +1 more source

Implications of a short carbon pulse on biofilm formation on mica schist in microcosms with deep crystalline bedrock groundwater

open access: yesFrontiers in Microbiology, 2023
Microbial life in the deep subsurface occupies rock surfaces as attached communities and biofilms. Previously, epilithic Fennoscandian deep subsurface bacterial communities were shown to host genetic potential, especially for heterotrophy and sulfur ...
Maija Nuppunen-Puputti   +3 more
doaj   +1 more source

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