نتایج جستجو برای: dimethyl phosphate

تعداد نتایج: 129606  

Journal: :progress in biological sciences 2014
mohammad ali malboobi katayoun zamani tahmineh lohrasebi mohammad reza sarikhani ali samaian

phosphorus (p) is one of the most vital elements for all living organisms which acts as aconstituent of essential biomolecules such as nucleic acids, phospholipids, and phosphosugars,and as a major contributor to almost all metabolic reactions including photosynthesis,respiration, and energy delivery. it is one of the most needed nutrients for plant growth anddevelopment. despite high levels of...

Journal: :The Journal of biological chemistry 1966
J C Tsibris D B McCormick L D Wright

The binding and function of FMN, 3,6,7-trimethyl-9(l’-o-ribityl)isoahoxazine 5’-phosphate (3-methyl-FMN), 6,7dichloro-9-(l’-o-ribityl)isoalloxazine 5’-phosphate (6,7-dichloro-FMN), and 6,7-dimethyl-9-(5’-hydroxypentyl)isoalloxazine 5’-phosphate (5’-hydroxypentyl-FMN) has been investigated with reduced nicotinamide adenine dinucleotide phosphate dehydrogenase and NADPH cytochrome c reductase fro...

Journal: :Catalysis Today 2021

The production of dimethyl ether (DME) as compared to methanol from synthesis gas allows for increased conversions in a single pass. A challenge this process is the combination and dehydration functionalities catalyst without mutual negative interference their performances. Here, we studied use hydrated niobium pentoxide (Nb2O5·nH2O) phosphate (NbOPO4) with copper-based direct DME, while gamma-...

Journal: :Journal of bacteriology 1994
I Schröder C D Wolin R Cavicchioli R P Gunsalus

The NarX, NarQ, and NarL proteins make up a nitrate-responsive regulatory system responsible for control of the anaerobic respiratory pathway genes in Escherichia coli, including nitrate reductase (narGHJI), dimethyl sulfoxide/trimethylamine-N-oxide reductase (dmsABC), and fumarate reductase (frdABCD) operons among others. The two membrane-bound proteins NarX and NarQ can independently sense th...

Journal: :journal of particle science and technology 0
nader rostamizadeh department of chemistry, science and research branch, islamic azad university, tehran,iran mirabdullah seyedsadjadi department of chemistry, science and research branch, islamic azad university, tehran,iran s. a. sadjadi institute of water and energy, sharif university of technology, p.o. box 11365-8639, tehran, i. r. iran

this paper investigates hollow and porous alumina nanospheres that were previously synthesized to be used for the dehydration of methanol to dimethyl ether (dme). as hollow nanostructures possess characteristics such as low density and high surface to volume ratio, their catalytic activity between hollow and porous structure is compared. for this purpose, three most important parameters (acidit...

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