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Showing 1 to 20 of 851 for “"Manganese"”.
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The electrical properties of pure manganese and manganese/magnesium fluoride cermet thin film resistors
Pure Mn and Mn/MgF2 cermet films (50 to 1500A thick) containing between 10 and 100 Wt % Mn have been prepared by single boat evaporation in vacuo =< 10^(-5) torr. All films studied are ohmic, and the resistivity lying between 100 µΩ-cm and 10 mΩ-cm. Within this range, the resistivity decreases …
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Electronic Thermal Conductivity of Superconducting Lead - Manganese, Indium - Manganese, and Indium - Chromium Alloy Films
Made available in DSpace on 2015-05-13T15:22:05Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7709150.PDF: 2639422 bytes, checksum: f0bec11959060a1e0374a08c1ebfbdc4 (MD5) Previous issue date: 1976
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Electronic thermal conductivity of superconducting lead-manganese, indium-manganese, and indium-chromium alloy films
… conductivity of quench-condensed films of lead-manganese and indium-manganese alloys. The results are compared with calculations based on Shiba's theory of superconductors containing magnetic impurities. For Pb-Mn, the value of £ (the normalized position in the energy gap of the excited state …
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The thermodynamic properties of the liquid manganese-lead and the solid manganese-iron systems
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Metallurgy, 1959.
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Manganese in Virginia soils and correction of manganese deficiency in soybeans (Glycine max L.)
The research was undertaken to provide basic information on Mn in Virginia soils and to evaluate rates and methods of Mn application to correct Mn deficiency in soybeans. Soil profile samples were analyzed from catenas representing the Appalachian, Piedmont, and Coastal Plain regions. The …
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The Effects of Manganese-Reducing Bacteria on Desorption of Manganese from MnOx(s) Coated Media
In the past, water treatment plants have stopped the application of pre-filter oxidants to create a bioactive filtration process to remove soluble Mn. After the cessation of pre-filter oxidants, a Mn desorption phenomenon was seen where effluent Mn exceeds influent Mn concentrations. The reason for …
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Striatal Dopamine Dynamics Upon Manganese Accumulation
<p>STRIATAL DOPAMINE DYNAMICS UPON MANGANESE ACCUMULATION </p> <p>by MADIHA KHALID</p> <p>August 2013</p> <p>Advisor: Dr. Tiffany Mathews</p> <p>Major: Chemistry (Analytical)</p> <p>Degree: Doctor of Philosophy</p> <p>Although manganese (Mn) is fundamental for many biological processes, exposure to …
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Grain boundary modifications of manganese ferrite
Complex impedance spectroscopy of Mn ferrite with $\le$1.0 wt% SiO$\sb2$ and CaCO$\sb3$ additions, cooled in air, showed two distinct arcs which were attributed to bulk and grain boundary phenomena. The bulk component was invariant while the grain boundary component varied by less than two orders …
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Manganese-catalyzed carbonylation of alkyl iodides
… zirconium biaryl. A general method for the manganese-catalyzed carbonylation of alkyl iodides while using a variety of nucleophiles was developed. The method concerns the alkoxy and amino carbonylation as well as the use of more unconventional nucleophiles such as thiols, azide and hydride. …
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The impact toughness of iron manganese alloys.
… 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 investigation shows that impact toughness can be improved by …
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Synthesis and Characterization of Manganese Pyridazyl Complexes
… in synthesizing organometallic pyridazines and manganese pyridazyl complex for polymer research. Off-metal synthesis and characterization of manganese pyridazyl complex required three intermediate steps. The research focuses on the synthesis and characterization of various manganese pyridazyl …
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Synthesis of Rhenium and Manganese Pyridazoal Complexes
<p>Pyridazines are a heterocyclic aromatic compound containing a characteristic N-N bond that are utilized in many fields, including medicine and electronics. It is this latter field that Dr. Snyder's research group is focused upon. Organometallic compounds are a better conducting material than the …
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Iron and Manganese Homeostasis in Marine Bacteria
… media that were either replete or depleted for manganese or for iron, and by making targeted mutations and reporter fusions, several important observations were made on the mechanisms of Mn and Fe homeostasis in the marine α‐proteobacterium Ruegeria pomeroyi (the main species studied here), and …
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Response of Soybean Iron and Manganese Deficiency
Iron (Fe) and manganese (Mn) deficiency are recurring problems in soybeans (Glycine max (L.) Merr.) grown on high pH, calcareous soils. Although chemical fertilizers have been used to control yield losses associated with these deficiencies, genetic resistance is more reliable and effective. …
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Factors Affecting Manganese Homeostasis in the Chick
Plant and animal sources of manganese (Mn) are, for the most part, unavailable to the chick. Corn (C), soybean meal (SBM), fish meal (FM) and wheat bran (WB) reduced tissue Mn concentrations when added to a purified phytate- and fiber-free diet. Although these feed ingredients contain significant …
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Magnetic Clusters in Mictomagnetic Copper - Manganese Alloys
Made available in DSpace on 2014-12-12T01:04:12Z (GMT). No. of bitstreams: 1 7511773.pdf: 8297344 bytes, checksum: 26c7b4173e974ad88b8d97fb9445ba06 (MD5) Previous issue date: 1974
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Remote C—H oxidations with manganese catalysts
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-05-01
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Manganese-catalyzed intermolecular benzylic C–H amination
… intermolecular C—H amination. We report a novel manganese perchlorophthalocyanine catalyst [Mn(ClPc)] for a highly site-selective intermolecular benzylic C—H amination of bioactive molecules and natural products. [Mn(ClPc)] is selective for benzylic C—H bonds over other C—H bond types and selects …
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