Relation between ExtractablePhosphorus and Adsorbed Phosphorous atEquilibrium Concentration Ce= 0.2 ppm P inCalcareous Soil.
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چکیده
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CE 1 - Griffin 02/05
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STUDIES ON TRANSIENT-STAGE-SCALE GROWTH ON Fe-22wt.% Cr ALLOYS CONTAINING 120 PPM La + 270 PPM Ce
Reactive elements (RE), such as Ce, La or Y, are known to improve oxidation resistance of Fe based alloys that form Cr2O3 scales. The current investigation aims to characterize the oxide scale in a Fe-22 wt.% Cr alloy containing 120 ppm La and 270 ppm Ce (added during melt-stage processing) as a function of oxidation times (at 800°C in dry air) during the transient stage of scale formation. The...
متن کاملThe Relationship Between Soil Particle Size And Lead Concentration
Many studies regarding heavy metal concentration in contaminated soils have observed increased concentrations in the smaller-sized particles. This phenomenon has been attributed to differences in organic matter, contaminant source, and particle surface area. The relationship between particle size and lead concentration in soils was explored. Data from four published studies were considered; the...
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ژورنال
عنوان ژورنال: Kirkuk University Journal-Scientific Studies
سال: 2006
ISSN: 2616-6801
DOI: 10.32894/kujss.2006.43647