Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"lead-manganese"”.
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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 …
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Metal exposure in non-occupationally exposed pregnant women of Western Australia and contribution of environmental sources
… study examined the degree of cadmium, copper, lead, manganese, mercury, nickel and uranium exposure in non-occupationally exposed pregnant women and the factors and sources contributing to their exposure. Studies have shown that environmental media are potential sources of metals exposure for …
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Nickel hydroxy-carbonate precipitation in a pellet reactor
… to 10 000ppm. The metals include copper, iron, lead, manganese, nickel and zinc. The potential for effluent treatment is broad and covers a range of mining industries metal-containing effluents. The process using carbonate precipitation in a pellet reactor to recover nickel has several …
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Total Fume and Heavy Metals Emission Factors Applicable to Aluminum-Lithium Alloy Welding
… and identify the heavy metal concentrations of lead, manganese, and chromium. Although there are numerous metals and various welding procedures this study will focus on three main factors: 1. Base metals comprised of Aluminum Lithium Alloy 2195 and 2219 an agehardened copper containing aluminum …
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Analysis of a room temperature partial extraction technique for heavy metals from soils
… span. Samples were analyzed for aluminum, iron, lead, manganese and zinc. In addition, the amounts of metals extracted by the room temperature procedure were compared with the amounts of metals obtained from both a total extraction and a partial extraction procedure involving heat. The chosen …
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Trace element contaminants in the Kuwait water production system
… water in Kuwait. Chromium, copper, iron, lead, manganese, nickel, vanadium and zinc have been analysed using atomic absorption spectroscopy (AAS) and inductively coupled plasma mass spectroscopy (ICPMS). Efforts were made to improve the preconcentration of the selected metals and their …
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Environmental justice education and atmospheric particulate analysis in urban environmental health policy development : indoor airborne particulate concentrations in preschools of asthmatic children in Newark
… species specifically analyzed included: zinc, lead, manganese, vanadium, and nickel, which are shown to significantly contribute to poor indoor air quality; and be associated with adverse health effects of asthmatic children. Presentation of data to the preschool community has provided an urban …
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Indigenous knowledge on utilization aspects and nutritional profiling of selected edible wild fruits from Zambia.
… minerals (calcium, magnesium, iron, copper, lead, manganese and zinc) range from 608 ± 57.98 to 953 ± 9.89 mg/kg DW, 529 ± 32.52 to 1206 ± 9.89 mg/kg DW, 14 ± 1.4 to 42.5 ± 2.10 mg/kg DW, 6.82 ± 1.01 to 13.5 ± 2.1 vi mg/kg DW, 0.26 ± 0.056 to 0.58 ± 0.02 mg/kg DW, 5.74 ± 0.106 to 78 ± 5.65 …
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Early life exposure to metals and adolescent neurodevelopment
… commonly exposed to multiple metals including lead and manganese. These metals are associated with adverse neurodevelopmental outcomes, with evidence of non-linear associations for essential metals. Metals target brain regions involved in cognition and motor function. However, there is a …
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IN-SITU PRECONCENTRATION OF TRACE METALS IN NATURAL WATERS AND BRINES WITH ANALYSIS BY FLOW INJECTION ATOMIC SPECTROMETRY
… elements including cadmium, cobalt, copper, lead manganese, nickel, selenium and zinc. Chapter one summarises the techniques used for such analyses and a review of solid phases used for sample preconcentration and matrix removal is given. Chapter two describes the development of an on-line …
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Lead Sorption Efficiencies of Natural and Sunthetic Mn and Fe-oxides
Lead sorption efficiencies (sorption per surface area) were measured for a number of natural and synthetic Mn and Fe-oxides using a flow through reactor. The Mn-oxide phases examined included synthetic birnessite, natural and synthetic cryptomelane, and natural and synthetic pyrolusite; the …