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Showing 1 to 14 of 14 for “"Mn-N"”.
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Precipitation reactions in a Cr-Mn-N austenitic steel with niobium and vanadium additions
Includes bibliographical references.
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First-principles and Many-Body Methods: Implementations and Applications to Study Spintronic Materials
… methods. Particularly, we investigate the Mn valence in (Ga,Mn)N and derive low-energy models of (Ga,Mn)N by making use of a first-principles Wannier-function analysis. Additionally, we also study the disorder-driven localization in DMSs with the typical-medium theory (TMT). Finally, we …
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Flow injection analysis (FIA) determination of lead by hydride generation in banded coral skeletons /
… elements, Fe(II), FeOH), Cd(n), Co(II), Mn(n), Ni(II) and Zn(n) do not interfere in this method but 1 mg,l'l Cu(II) will suppress 50 % of the signal from a sample containing 20 ng.ml'l Pb. This method was successfully applied to determine lead in a calcium carbonate (CaC03) matrix of …
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Geomicrobiology of the ocean crust : the phylogenetic diversity, abundance, and distribution of microbial communities inhabiting basalt and implications for rock alteration processes
… of the ocean crust and overlying water column. Our study demonstrates that young, fresh volcanic lavas near mid-ocean ridges host an incredibly diverse and dense population of microorganisms dominated by Bacteria, quite distinct from the microbial communities found in surrounding deep …
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En route towards advanced catalyst materials for the electrocatalytic water splitting reaction
… desired. In this manner, the preparation of Mn-, N-, S-, P-, and C-containing nickel materials has been investigated together with the theoretical and electrochemical elucidation of their activity towards the hydrogen (and oxygen) evolution reaction. The Sabatier principle has been used as …
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Geomicrobiology of the ocean crust : the phylogenetic diversity, abundance, and distribution of microbial communities inhabiting basalt and implications for rock alteration processes
… of the ocean crust and overlying water column. Our study demonstrates that young, fresh volcanic lavas near mid-ocean ridges host an incredibly diverse and dense population of microorganisms dominated by Bacteria, quite distinct from the microbial communities found in surrounding deep …
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Synthesis, characterization and chemical vapor deposition of transition metal di(tert-butyl)amido compounds
… of metals and metal nitrides. Treatment of MnBr₂(THF)₂, FeI₂, CoBr₂(DME), or NiBr₂(DME) with two equivalents of LiN(t-Bu)2 in benzene affords the two-coordinate complex M[N(t-Bu)₂]₂, where M is Mn, Fe, Co, or Ni. Crystallographic studies show that the M-N distances decrease across the …
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The impact toughness of iron manganese alloys.
Fe-8Mn alloys may form the basis of a cryogenic steel similar to Fe-9Ni steels, but at a cost much more economical as manganese is cheaper than nickel. However, Fe-Mn alloys are susceptible to temper embrittlement through segregation of Mn, N and P to prior austenite grain boundaries. The present …
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Assessing hemlock woolly adelgid induced decline and susceptibility using hyperspectral technologies
… Regionally, higher concentrations of Ca, Mn, N and P were correlated with higher HWA densities. We hypothesize that higher N and K concentrations may have a palatability effect, driving HWA population levels, while higher concentrations of Ca and P may act as deterrents to more severe …
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The synthesis and reactivity of binuclear μ-hydrocarbyl complexes of some transition metals
… (R = H, n = 3 -10 and R =Me, n =3 - 6), [Mn(CO)₅]₂{μ-(CH₂)n} (M = Mn, n = 4-6 and M = Re, n= 3 and 4) have been prepared using essentially two synthetic routes. Thus the iron compounds were synthesized by the reaction of Na[(ƞ⁵-C₅R₄Me)Fe(CO)₂ ] with the appropriate dibromoalkane. The …
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Low-Temperature Chemical Vapor Deposition of Ruthenium and Manganese Nitride Thin Films
Materials and thin film processing development has been and remains key to continuing to make ever smaller, or miniaturized, microelectronic devices. In order to continue miniaturization, conformal, low-temperature deposition of new electronic materials is needed. Two techniques capable of …
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Chemical limnology, algal growth potential, and nutrient limitation factors of the Upper New River, Virginia, and predictions concerning trophic status for the proposed Blue Ridge reservoirs
… odors, higher levels of soluble Fe and Mn and loss of oxygen resources may result. Impoundments are often characterized by vertical stratification of O₂, temperature, alkalinity, free CO₂, pH, Fe, Mn, N,and P during different seasons of the year. As a result, the location of the …
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Relationships among nutrient concentrations in corn (Zea mays L.) plants and extractable soil nutrients
… soils. Concentrations of B, Ca, Cu, Fe, K, Mg, Mn, N, P, S, and Zn in the earleaf at the early silk growth stage were determined to assess the nutrient status of corn plants. The experimental data indicated that nutrient concentrations were too low to provide adequate amounts to corn plants on …
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Hidrogeoquímica dos aquíferos da bacia sedimentar do Macacu – Itaboraí, RJ
… Al, Ag, Cd, Co, Cr, Cu, Mo, Ni, Pb, Zn, Fe, Mn, Ba, As, B, F, Sulfetos, SiO2, N-NH4, N-NO2, N-NO3 e P-PO4.Os tipos hidroquímicos identificados nas águas subterrâneas foram: água bicarbonatada-cálcica e sódica integrantes do sistema aquífero Macacu, para o aquífero Aluvial-lacustrino foram …