Results 51 to 60 of about 395,312 (410)

Molybdenum Evidence for Inherited Planetary Scale Isotope Heterogeneity of the Protosolar Nebula [PDF]

open access: yes, 2001
Isotope anomalies provide important information about early solar system evolution. Here we report molybdenum isotope abundances determined in samples of various meteorite classes. There is no fractionation of molybdenum isotopes in our sample set within 0.1 permil and no contribution from the extinct radionuclide 97Tc at mass 97 (97Tc/92Mo<3E-6 ...
arxiv   +1 more source

Molecular potentials for 2D molybdenum disulphide: transferability and performance [PDF]

open access: yesMaterials 2021, 14(3), 519, 2020
An ability of different molecular potentials to reproduce the properties of 2D molybdenum disulphide polymorphs is examined. Structural and mechanical properties, as well as phonon dispersion of the 2H, 1T and 1T' single-layer MoS2 (SL MoS2) phases, were obtained using density functional theory (DFT) and molecular statics calculations (MS) with ...
arxiv   +1 more source

CCVD synthesis of carbon nanotubes from (Mg,Co,Mo)O catalysts: influence of the proportions of cobalt and molybdenum [PDF]

open access: yes, 2004
Carbon nanotubes have been synthesised by catalytic chemical vapour deposition of a H2–CH4 mixture (18 mol% CH4) over (Mg,Co,Mo)O catalysts. The total amount of cobalt and molybdenum has been kept constant at 1 cat% and the proportion of molybdenum with ...
Bacsa, Revathi   +4 more
core   +2 more sources

Molybdenum Intake Influences Molybdenum Kinetics in Men [PDF]

open access: yesThe Journal of Nutrition, 2007
The objectives of this study were to determine physiologic adaptations that occur when humans are exposed to a wide range of molybdenum intake levels and to identify the pathways that are influenced by dietary intake. Four males consumed each of 5 daily molybdenum intakes of 22, 72, 121, 467, and 1490 microg/d (0.23, 0.75, 1.3, 4.9, and 15.5 micromol/d)
Judith R. Turnlund, Janet A. Novotny
openaire   +3 more sources

The Extreme Overabundance of Molybdenum in Two Metal-Poor Stars [PDF]

open access: yesAstrophysical Journal (2011, 742, 21), 2011
We report determinations of the molybdenum abundances in five mildly to extremely metal-poor turnoff stars using five Mo II lines near 2000A. In two of the stars, the abundance of molybdenum is found to be extremely enhanced, as high or higher than the neighboring even-Z elements ruthenium and zirconium.
arxiv   +1 more source

Growth of thin films of molybdenum and tungsten oxides by combustion CVD using aqueous precursor solutions [PDF]

open access: yes, 2004
Using combustion chemical vapour deposition, layers of molybdenum and tungsten oxides have been deposited on glass and silicon at low temperatures. Inexpensive ammonium salts of molybdate and metatungstate ions were used as precursors and were delivered ...
Benito, G   +3 more
core   +1 more source

The Molybdenum Cofactor [PDF]

open access: yesJournal of Biological Chemistry, 2013
The transition element molybdenum needs to be complexed by a special cofactor to gain catalytic activity. Molybdenum is bound to a unique pterin, thus forming the molybdenum cofactor (Moco), which, in different variants, is the active compound at the catalytic site of all molybdenum-containing enzymes in nature, except bacterial molybdenum nitrogenase.
openaire   +3 more sources

Tuning orbital orientation endows molybdenum disulfide with exceptional alkaline hydrogen evolution capability

open access: yesNature Communications, 2019
Molybdenum disulfide is naturally inert for alkaline hydrogen evolution catalysis, due to its unfavorable water adsorption and dissociation feature originated from the unsuitable orbital orientation.
Y. Zang   +12 more
semanticscholar   +1 more source

Refining the NaV1.7 pharmacophore of a class of venom‐derived peptide inhibitors via a combination of in silico screening and rational engineering

open access: yesFEBS Letters, EarlyView.
Venom peptides have shown promise in treating pain. Our study uses computer screening to identify a peptide that targets a sodium channel (NaV1.7) linked to chronic pain. We produced the peptide in the laboratory and refined its design, advancing the search for innovative pain therapies.
Gagan Sharma   +8 more
wiley   +1 more source

Hydration Reaction of Cementitious Materials Prepared with Molybdenum Tailings

open access: yesChemical Engineering Transactions, 2018
Cementitious materials is prepared with blended powders including molybdenum tailings, slag, clinker and gypsum. The effect of molybdenum tailings proportion on strengths and hydration products of molybdenum- tailing-based neat paste are studied.
Yanqing Di   +3 more
doaj   +1 more source

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