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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 20 of 1365 for “"Zn"”.
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Supplementing weanling pigs with high concentrations of Zn and the Zn availability of Zn sources for weanling pigs
… of weanling pigs with high levels of Zn and to compare the availability of Zn from several Zn sources for weanling pigs. In the first four trials, supplementing Zn by injecting Zn acetate either i.m. or i.p. at various times near weaning did not improve postweaning growth performance …
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Assessing the potential for Zn limitation of marine primary production: proteomic characterization of the low Zn stress response in marine diatoms
… I investigated the response of marine diatoms to Zn scarcity to characterize metabolic mechanisms used to combat Zn stress. I began by assaying the ability to metabolically substitute cobalt (Co) in place of Zn in four diatom species and found that enhanced abilities to use Co are likely an …
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Evaluation of corrosion behaviour of hot dip Zn and Zn-Al alloy coatings on steel wire using laboratory and field tests
… barrier and cathodic corrosion protection. Zinc (Zn) and zinc-aluminium (Zn-Al) alloys are the most commonly used metallic coatings on steel wire. Zn-Al coatings outperform Zn coatings, most notably in marine environments, as they combine the highly insulating oxide film associated with Al …
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Resorption rate tunable bioceramic: Si,Zn-modified tricalcium phosphate
… and Zinc modified tricalcium phosphate (Si,Zn-TCP), a biphasic material, was synthesized as a candidate for resorbable temporal bone implant having a controlled solubility and pharmaceutical effect to promote bone formation. From XRD and ICP analyses, it was shown that up to 10% Si and Zn …
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Purification of Cd, Zn and Te for CdZnTe growth
… improve the quality of cadmium-zinc-telluride (CdZnTe) crystal growth. Specifically, vacuum distillation, zone refining and H[subscript]2 gas flow assisted zone refining were all investigated as methods to purify the constituent elements of CdZnTe. A unique multi-chamber ampoule was used to enable …
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Interstitial-impurity trapping in Al-Fe and Al-Zn
… electron irradiation near 65K of A1-Fe and A1-Zn dilute alloys. Multiple relaxation processes were observed in both alloys. In the case of A1-Zn, the simultaneous annealing near 130K of resistivity, diae1astic modulus changes, and a parae1astic relaxation peak in C' allows for a …
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Pb and Zn contamination in Zoar Vlei, Cape Peninsula
… Zoar Vlei act as a considerable sink for Pb and Zn derived from the adjacent Paarden-Eiland semi-industrial area and the Milnenon-Rugby residential area. Through elemental analysis of 34 sediment samples by WDXRF spectroscopy, the sediments were shown to be significantly enriched in Pb and …
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Particle-Water Interactions of Ni and Zn in Coastal Waters
… Study (LOIS) initiative. Concentrations of Ni, Zn, Fe and Mn, extracted using a 1M HCl digest, were determined by atomic absorption spectrometry techniques. Particulate Ni and Zn both exhibited a pronounced seasonal distribution in the Humber coastal zone. Significant metal-salinity …
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Approaches to study Zn(II) deficiency and transport in biology
Divalent zinc, Zn(II), is an abundant and essential metal ion for human health. Across diverse biological settings, it stabilizes the structure of proteins, serves as a catalytic cofactor in enzymes with disparate functions, and mediates important signaling events. The ability of cells to apply …
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Investigation of Cu and Zn interactions with ilmenite during waste incineration
… Na and Cl) and the minor ash components Cu and Zn interact with the oxygen carrier bed material ilmenite (FeTiO3) during waste incineration. A focus on Cu and Zn was chosen since these usually have the highest concentrations out of the trace metals that can be valuable for recycling, as they are …
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Pourbaix diagrams at elevated temperatures: a study of Zn and Sn
Metals in industrial settings such as power plants are often subjected to high temperature and pressure aqueous environments, where failure to control corrosion compromises worker and environment safety. For instance, zircaloy (1.2-1.7 wt.% Sn) fuel rods are exposed to aqueous 250-310 oC coolant in …
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Phytate Extraction and Stimulation of Phytase by Zn & Mg in Seeds
… the activity of phytase in some seeds, but with Zn<sup>2+</sup> and Mg<sup>2+</sup> together no effect on phytase activity was observed.</p>
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Η ΜΕΛΕΤΗ ΤΩΝ ΙΧΝΟΣΤΟΙΧΕΙΩΝ ZN ΚΑΙ CU ΣΕ ΚΑΡΚΙΝΟ ΤΟΥ ΛΑΡΥΓΓΑ
THE CONCENTRATIONS OF ZINC AND COPPER IN SERUM AND CANCEROUS TISSUE WERE EVALUATED IN 30 PATIENTS SUFFERING FROM CANCER OF THE LARYNX. THIRTY OTHER PERSONS USED AS NORMAL CONTROLS. THE CONCENTRATION OF ZINC SERUM IS VERY DECREASED IN SERUM AND INCREASED IN THE TUMORAL LARYNX TISSUE. COPPER CONTENTS …
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Der photorefraktive Effekt in vanadiumdotierten CdTe- und (Cd,Zn)Te-Kristallen
… Effekt sowohl in CdTe als auch in (Cd,Zn)Te untersucht. Sowohl die Kristallzüchtung als auch die Materialcharakterisierung, insbesondere mittels photorefraktiver Zweiwellenmischung, sind Bestandteil der Arbeit. <br> <br>Mittels Sessile-Drop-Messungen wird gezeigt, dass sich der …
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Planar tunneling into Y1Ba2Cu3-xMxO7-d (M=Zn, Ni) thin films
Submitted by Jenny Wong-Welch (wongwel2@illinois.edu) on 2011-11-08T22:37:34Z No. of bitstreams: 1 2001_badica.pdf: 5363182 bytes, checksum: 896acb8e7679738d941b8d4e04571dc1 (MD5)
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Phase stability and formation in the Cu-Zn-Sn-S system
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2020-05-01
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Composition and microstructure evolution in semi-solid cast Al-Zn alloys
… the suitability of utilising heat treatable, Al-Zn-Mg-Cu alloys for the production of high strength parts for the automotive and aerospace industries, using the semi-solid metal rheocasting process. The process results in segregation, arising from non-equilibrium solidification, thus placing high …
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