搜索结果: 1-15 共查到“理学 manganese”相关记录57条 . 查询时间(0.031 秒)
High cadmium pollution from sediments in a eutrophic lake caused by dissolved organic matter complexation and reduction of manganese oxide
eutrophication lake pollution dissolved organic matter DOM DGT
2021/7/27
Eutrophication and metal pollution are global environmental problems. The risk of metal pollution is high in the eutrophic lakes because of high mobility of metal in sediments.
Effect of the application of bioplexes of zinc, copper and manganese on milk quality and composition of milk and colostrum and some indices of the blood metabolic profile of cows
dairy cows bioplexes of zinc copper and manganese colostrum milk blood
2015/6/4
The object of an experiment was inorganic and organic forms of zinc, copper and manganese applied in mineral mixtures to dairy cows. The experiment was carried out on 90 cows with average milk yield f...
Isolation and characterization of multicytochrome gene cluster from Shewanella putrefaciens MR-1 involved in iron and manganese reduction
Biological sciences Multicytochrome gene cluster Manganese reduction Iron reduction Schewanella putrefaciens
2015/1/28
Dissimilatory Fe(III) and Mn(IV) reduction is an anaerobic respiratory process common to many environments. A large number of bacteria that utilize these metals as terminal electron acceptors have bee...
Fluxes of dissolved aluminum and manganese to the Weddell Sea and indications for manganese co-limitation
Fluxes dissolved aluminum manganese to the Weddell Sea indications manganese co-limitation
2014/4/2
The trace metals aluminum (Al) and manganese (Mn) were studied in the Weddell Sea in March 2008.Concentrations of dissolved Al ([Al]) were slightly elevated (0.23–0.35 nmol L21) in the surface layer c...
Basin-scale inputs of cobalt, iron, and manganese from the Benguela-Angola front to the South Atlantic Ocean
Basin-scale inputs of cobalt, iron manganese Benguela-Angola South Atlantic Ocean
2014/4/4
We present full-depth zonal sections of total dissolved cobalt, iron, manganese, and labile cobalt from the South Atlantic Ocean. A basin-scale plume from the African coast appeared to be a major sour...
Basin-scale inputs of cobalt, iron, and manganese from the Benguela-Angola front to the South Atlantic Ocean
Basin-scale inputs of cobalt iron manganese the Benguela-Angola front the South Atlantic Ocean
2014/4/3
We present full-depth zonal sections of total dissolved cobalt, iron, manganese, and labile cobalt from the South Atlantic Ocean. A basin-scale plume from the African coast appeared to be a major sour...
Manganese evolution in Omega Centauri: a clue to the cluster formation mechanisms?
nuclear reactions nucleosynthesis abundances – galaxies: evolution – globular clusters: individual: ω Centauri
2011/10/18
We model the evolution of manganese relative to iron in the progenitor system of the globular cluster Omega Centauri by means of a self-consistent chemical evolution model. We use stellar yields that ...
Variations in Synechococcus cell quotas of phosphorus, sulfur, manganese, iron, nickel, and zinc within mesoscale eddies in the Sargasso Sea
phosphorus sulfur manganese iron
2014/4/16
The quotas of P, S, Mn, Fe, Ni, and Zn in individual Synechococcus cells collected from the surface and deep
chlorophyll maximum (DCM) layer of three mesoscale eddies in the Sargasso Sea were measure...
Structural and Mössbauer Spectral Studies of Nanosized Aluminum Doped Manganese Zinc Ferrites
Mö ssbauer Spectral Zinc Ferrites Nanosized Aluminum
2009/9/4
Nanoparticles of aluminum-substituted manganese zinc ferrites, Mn1.05Zn0.05AlxFe1.9−xO4 with 0.4≤x≤1.0 were synthesized by solid-state reaction route and characterized by XRD, TEM, and Möss...
Preparation and Characterization of Manganese Ferrite Aluminates
Manganese ferrite spinel ferrites Mö ssbauer Analysis
2009/9/4
Aluminum doped manganese ferrites MnAlxFe2−xO4 with 0.0≤x≤1.0 have been prepared by the double ceramic route. The formation of mixed spinel phase has been confirmed by X-ray diffraction analysis...
Synthesis and thermal stability of hydrotalcites containing manganese
Charmarite Rhodochrosite Hydrotalcite Hydrocalumite Synthesis Thermal stability
2011/11/10
The hydrotalcite based upon manganese known as charmarite Mn4Al2(OH)12CO3·3H2O has been synthesised with different Mn/Al ratios from 4:1 to 2:1. Impurities of manganese oxide, rhodochrosite and bayeri...
Geochemistry and Origin of the Oligocene Binkılıç Manganese Deposit：Thrace Basin, Turkey
Geochemistry Oligocene Binkı lı ç Manganese Deposit
2009/7/8
Many Oligocene Manganese deposits are found in the Trace basin, a Tertiary collisional-collapse type basin in the northwestern part of Turkey. All the mineralizations are originally sedimentary type. ...
Morphological variations of a manganese-oxidizing microorganism Metallogenium observed in the developmental process of cultures collected from Lake Biwa waters
Bacteria Fungus Manganese
2009/4/1
Blackish brown particles of manganese oxide usually derived from the microorganism Metallogenium were observed for the first time in November, 2002 at the center of the north basin of Lake Biwa off Im...
THE INFLUENCE OF HYPERFINE STRUCTURE ON SOME MANGANESE LINE PROFILES IN THE SOLAR SPECTRUM
Sun photosphere–Line profiles–techniques spectroscopic
2009/3/11
Taking into account effects of hyperfine structure, we calculated
the synthetic solar spectrum for wavelength intervals around nine neutral manganese
lines. To estimate values of hyperfine component...
Oxidative Cyclisation of 3-Oxopropanenitriles Mediated Manganese(III) Acetate with 2-Thienyl Substituted Alkenes
Manganese(III) acetate oxidative cyclisation 4,5-dihydrofuran-3-carbonitrile 3-oxopropanenitrile conjugated alkene radical addition
2010/4/16
The oxidative cyclisation of 3-oxopropanenitriles 1a-g with alkenes 2a-c containing 2-thienyl group by manganese(III) acetate was studied. Treatment of 3-oxopropanenitriles 1a-d with 2-[(E)-2-phenylvi...