7,907 research outputs found
Studies of Oligodeoxyribonucleoside Methlphosphonates-Nucleic Acid Interaction, Disseration
No full textFe ion or EDTA-Fe complex as catalyst for the oxidation of chemiluminescent luminol by H2O2
No full textChemokine receptor expression profiles in nasopharyngeal carcinoma and their association with metastasis and radiotherapy.
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Doped Ge-Sb-Te phase-change materials for reversible phase-change optical recording
No full text[[abstract]]Differently doped Ge-Sb-Te phase-change recording films were prepared by the individual dc magnetron sputtering of Sn5Ge3Sb72Te20, In5Ge3Sb72Te20, Ga5Ge3Sb72Te20 and Bi5Ge3Sb72Te20 targets. A close relationship was observed between surface roughness and reflectivity. The Ge-Sb-Te films doped with Bi showed the highest surface roughness and reflectivity. The phase-change optical disks with Bi-doped Ge-Sb-Te recording films showed the best overwriting characteristics. Therefore, the reversible recording properties of the phase-change optical disk were dominated by the composition of the recording film. (c) 2006 Elsevier Ltd and Techna Group S.r.l. All rights reserved.[[note]]SC
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Laser processing of solution based antimony doped tin oxide thin films
No full textAntimony doped Tin oxide (SnO2:Sb, or ATO) is of interest as an alternative to Indium Tin Oxide (ITO) for large area optoelectronic applications. There is a particular interest in the potential for solution based coatings based on nanoparticulate suspensions of SnO2:Sb. However, solution processed films typically require a high temperature (~700⁰C) annealing step to achieve the desired electrical and optical properties. This is disadvantageous for applications that would benefit from low cost, low temperature/flexible substrates. As an alternative to conventional high temperature annealing, excimer laser processing can provide highly localized energy dissipation, and is an attractive technique to functionalise coated materials. Therefore the work presented in this thesis investigates the use of excimer laser processing to optimise the electrical and optical properties of solution deposited SnO2:Sb thin films for use in electroluminescent display devices. Thin films of SnO2:Sb were deposited using dip coating, inkjet printing and the spin coating technique. By varying the numbers of spin coatings deposited, a series of samples were prepared on Eagle XG glass substrates with different thicknesses of SnO2:Sb (ranging from 0.2 μm to 1.4 μm). The initial sheet resistance, optical transmission and crystal structure of the deposited films was studied. The films were subsequently post processed using three different annealing techniques: (i) Laser Processing: samples were laser processed in air to optimise the sheet resistance and optical transmission
Bi-Ge-Sb-Sn-Te films for reversible phase-change optical recording
No full text[[abstract]]Bi-Ge-Sb-Sn-Te phase-change recording films (Films A-D) were prepared by the co-sputtering of Bi30Ge10Te60, Ge20Sb80, Sb and Sn targets. The composition of the recording films was controlled by the de power. The film composition, surface roughness and reflectivity were also closely related. Dynamic tests revealed that disks with Film C exhibited a low jitter value and a high modulation value after direct overwriting. Therefore, the composition of the recording film dominated the reversible recording properties of the phase-change optical disk. (c) 2006 Elsevier Ltd and Techna Group S.r.l. All rights reserved.[[note]]SC
A novel immunogenic spore coat-associated protein in Bacillus anthracis: Characterization via proteomics approaches and a vector-based vaccine system.
No full textGlycopeptide profiling as a tool to discover novel markers of disease progression in liver fibrosis
No full textOn the synthesis of intermetallic compounds containing a volatile component: Ln(2)Fe(17-x)Sb(x) (Ln=Nd, Sm)
No full textSb-substituted Nd2Fe17-xSbx and Sm2Fe17-xSbx materials were synthesized using a modified reduction-diffusion process with superfine Fe metal powder as starting material. Sb is a volatile element at high temperature and Sb-substituted intermetallic materials cannot be prepared using a conventional metallurgical method. The substitution of Sb in Nd2Fe17 and Sm2Fe17 enhances significantly the magnetic interaction between Fe atoms and improves their chemical stability, particularly for Sm2Fe17-related materials. (C) 2000 Elsevier Science S.A. All rights reserved.Chemistry, PhysicalMaterials Science, MultidisciplinaryMetallurgy & Metallurgical EngineeringSCI(E)1ARTICLE2109-11331
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