Results 11 to 20 of about 783,178 (384)

Manganese abundances in mercury--manganese stars [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1999
We use exact curve-of-growth analysis and spectral synthesis to deduce the abundance of Mn from high signal-to-noise ratio visible-region echelle spectra of selected Mn i and MnII lines in 24 HgMn stars.
Jomaron, CM, Dworetsky, MM, Allen, CS
openaire   +4 more sources

Study on manganese volatilization behavior of Fe–Mn–C–Al twinning-induced plasticity steel

open access: yesHigh Temperature Materials and Processes, 2021
In the smelting process of high manganese steel, the volatilization of manganese will be accompanied. In this article, the volatilization of manganese in high manganese steel was studied by simultaneous thermal analyzer.
Lan Fang-jie   +5 more
doaj   +1 more source

Manganese

open access: yesDefinitions, 2020
• Appearance: Manganese, AAS standard solution, Specpure®, Mn 1000μg/ml; Manganese, Oil based standard solution, Specpure®, Mn 5000μg/g; Manganese powder, -140+325 mesh, 99.6% (metals basis); Manganese sputtering target, 76.2mm (3.0in) dia x 6.35mm (0 ...
Bruce Cairncross
semanticscholar   +1 more source

The effects of Mg2+ concentration, (NH4)2SO4 concentration and current density on electrolytic manganese process

open access: yesMaterials Research Express, 2021
In this paper, the effects of Mg ^2+ concentration, (NH _4 ) _2 SO _4 concentration and current density on the current efficiency, cell voltage and morphology of electrolytic manganese metal were studied.
Hai-Feng Wang   +5 more
doaj   +1 more source

High-field (high-frequency) EPR spectroscopy and structural characterization of a novel manganese(III) corrole [PDF]

open access: yes, 2000
The X-ray structure, magnetic susceptibility, and high-field (high-frequency) EPR spectrum of manganese 5,10,15-tris(pentafluorophenyl) corrole unambiguously establish that the complex contains an isolated, slightly rhombic, manganese(III ...
Bendix, Jesper   +3 more
core   +1 more source

Manganese ascorbate, manganese aspartate, manganese bisglycinate and manganese pidolate as sources of manganese added for nutritional purposes to food supplements [PDF]

open access: yesEFSA Journal, 2009
No specific studies on bioavailability were made available on any of the manganese sources considered in this opinion. However it can be assumed that manganese sources will dissociate in the stomach and/or in the gastrointestinal fluids into their constituents and that bioavailability in the gastrointestinal tract would be at least similar to that from
F. Aguilar   +20 more
  +6 more sources

The Escherichia coli small protein MntS and exporter MntP optimize the intracellular concentration of manganese. [PDF]

open access: yesPLoS Genetics, 2015
Escherichia coli does not routinely import manganese, but it will do so when iron is unavailable, so that manganese can substitute for iron as an enzyme cofactor.
Julia E Martin   +3 more
doaj   +1 more source

Manganese co-limitation of phytoplankton growth and major nutrient drawdown in the Southern Ocean

open access: yesNature Communications, 2021
Residual macronutrients in the surface Southern Ocean result from restricted biological utilization, caused by low wintertime irradiance, cold temperatures, and insufficient micronutrients.
T. Browning   +3 more
semanticscholar   +1 more source

Formation of a solvate of manganese(III) acetylacetonate with chloroform

open access: yesКонденсированные среды и межфазные границы, 2022
Metal acetylacetonates are coordination compounds consisting of the acetylacetonate anion (CH3COCHCOCH3, indicated as acac) and metal ions. Typically, both oxygen atoms of the anion bind with the metal and form a six-membered chelate ring.
Vladimir P. Zlomanov   +2 more
doaj   +1 more source

Electrochemical lithium intercalation in nanosized manganese oxides [PDF]

open access: yes, 2006
X-ray amorphous manganese oxides were prepared by reduction of sodium permanganate by lithium iodide in aqueous medium (MnOx-I) and by decomposition of manganese carbonate at moderate temperature (MnOx-C).
Bacia, Maria   +6 more
core   +3 more sources

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