Results 51 to 60 of about 233,674 (199)
On the Unusual Depletions toward Sk 155, or What Are the Small Magellanic Cloud Dust Grains Made of?
, 2006 The dust in the Small Magellanic Cloud (SMC), an ideal analog of primordial galaxies at high redshifts, differs markedly from that in the Milky Way by exhibiting a steeply rising far-ultraviolet extinction curve, an absence of the 2175 Angstrom ...
Aigen Li +8 more
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Formation of Iron Oxides by Surface Oxidation of Iron Plate
Croatica Chemica Acta, 2012 The formation of iron oxides by surface oxidation of iron plates between 400 and 800 °C for different times was monitored. Delamination of iron plates was noticed at temperatures above 500 °C. The pattern morphology was dependent on the temperature of oxidation and very little on time of oxidation.
Marciuš, Marijan +3 more
openaire +6 more sources
MoleculesIron(III) oxide and cobalt(III) oxide can form distinct spatial and spin configurations. Kite, spindle, and linear geometries have been shown to be stable for the specified electron configurations; however, these oxides generally favor higher open-shell ...
Sapajan Ibragimov +2 more
doaj +1 more source
A NEW “FERROVUM” SPECIES IN A SCHWERTMANNITE-PRODUCING PLANT FOR MINE WATER TREATMENT [PDF]
, 2018 Mining activities for metals or coal often result in the development of acid mine drainage due to the oxidation of sulfidic minerals which get exposed to oxygen.
Holmes, David +3 more
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Insights into secondary reactions occurring during atmospheric ablation of micrometeoroids [PDF]
, 2016 Ablation of micrometeoroids during atmospheric entry yields volatile gases such as water, carbon dioxide, and sulfur dioxide, capable of altering atmospheric chemistry and hence the climate and habitability of the planetary surface.
Court, RW, Tan, J
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Stability of (Mg,Fe)SiO3 perovskite and the structure of the lowermost mantle [PDF]
, 2008 Thermodynamic analysis shows that (Mg,Fe)SiO3 perovskite is stable throughout the likely pressure, temperature and compositional regime of the Earth's mantle.
Bukowinski, MST, Stixrude, L
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Sources and mechanisms for the enrichment of highly reactive iron in euxinic Black Sea sediments [PDF]
, 2004 The deep basinal euxinic sediments of the Black Sea are enriched in iron that is highly susceptible to sulfidization compared to oxic/suboxic continental margin sediments in the Black Sea and oxic/dysoxic continental margin and deep-sea sediments ...
Anderson, T.F., Raiswell, R.
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From Iron Oxides to Infections [PDF]
ChemSusChem, 2008 AbstractCellular electron transfer under diverse anaerobic conditions is a primary topic of research conducted by the Newman group. In this Viewpoint, a summary is given of how a geobiological approach has been used to investigate these processes.magnified ...
openaire +4 more sources
Goethite Reduction by a Neutrophilic Member of the Alphaproteobacterial Genus Telmatospirillum
Frontiers in Microbiology, 2019 In tropical iron ore regions, biologically mediated reduction of crystalline iron oxides drives ongoing iron cycling that contributes to the stability of surface duricrusts.
Emma J. Gagen +3 more
doaj +1 more source
Structural Features of Layered Iron Pnictide Oxides (Fe2As2)(Sr4M2O6)
, 2010 Structural features of newly found perovskite-based iron pnictide oxide system have been systematically studied. Compared to REFePnO system, perovskite-based system tend to have lower Pn-Fe-Pn angle and higher pnictogen height owing to low ...
H. Ogino +16 more
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