1,721,034 research outputs found
Tyrosine sulfation of sphingosine 1-phosphate 1 (S1P1) is required for S1P-mediated cell migration in primary cultures of human umbilical vein endothelial cells
No full textSerotype distribution and antimicrobial susceptibility of group A Streptococci (Streptococcus pyogenes) isolated in Taiwan.
No full textComparison of immunoassay kits for detection of staphylococcal enterotoxins produced by Staphylococcus aureus.
No full textDoped 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
Effect of substrate temperature on the properties of TiO2 nanoceramic films
No full text[[abstract]]TiO2 nanoceramic films were deposited on glasses by rf magnetron sputtering. This method provides more advantages in controlling the microstructure and composition of the films. TiO preferentially formed and the deposited films tended to become nonstoichiometric by increasing substrate temperature. The morphologies and hydrophilic properties of TiO2 films were significantly affected by the substrate temperature. The nonlinear refractive index of the TiO2 film on the glass substrate measured by Moire deflectometry was of the order of 10(-8) cm(2) W-1. Smaller grain size, higher optical energy gap, visible transmission and linear refractive index, and lower stress-optical coefficient were obtained at lower substrate temperature. (C) 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved.[[note]]SC
Optical properties of TiO2 nanoceramic films as a function of N-Al co-doping
No full text[[abstract]]The N-doped TiO2, Al-doped TiO2 and N-Al co-doped TiO2 films had the similar structure to that of the TiO2 film and corresponded to nanocrystalline anatase. By N and/or Al doping, the TiO2 film became more stoichiometric and the nanocrystallinity was enhanced, especially N-Al co-doping. The optical transmission of N-Al co-doped TiO2 film was the highest because of the lowest surface roughness and the lowest porosity. The nonlinear refractive index of N-Al co-doped TiO2 film on the glass substrate was measured by Moire deflectometry, and was of the order of 10(-8) cm(2) W-1. By N-Al co-doping, the TiO2 nanoceramic film exhibited highest linear refractive index, lowest stress and lowest stressoptical coefficient. (C) 2009 Elsevier Ltd and Techna Group S.r.l. All rights reserved.[[note]]SC
Effect of fibered morphology on the properties of Al2O3 nanoceramic films
No full text[[abstract]]The Al2O3 nanoceramic films were deposited by rf magnetron sputtering. The formation of fibered morphology of Al2O3 film was dominated by decreasing Ar pressure, and was good for the hydrophilicity of the deposited film. The nonlinear refractive indices of Al2O3 films deposited on the glass substrates were measured by Moire deflectometry, and were of the order of 10(-8) cm(2) W-1. For the Al2O3 film deposited in a mixed Ar-O-2 atmosphere, the diffusion of oxygen into the grains could smooth the thin film and enhanced the transmission. The Al2O3 film exhibiting fibered morphology corresponded to higher optical energy gap and higher transmission in the VIS-NIR region. As the results, the surface morphologies affected the hydrophilicity and optical properties of Al2O3 films significantly. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.[[note]]SC
The optical properties of Ti-doped TiO2 nanoceramic films deposited by simultaneous rf and dc magnetron sputtering
No full text[[abstract]]The Ti-doped TiO2 (TiO2:Ti) nanoceramic films were deposited by simultaneous rf magnetron sputtering of TiO2 and dc magnetron sputtering of Ti. When dc power increased, TiO preferentially formed and the deposited films had lower O/Ti atomic ratio, especially at low substrate temperature. With the decrease of substrate temperature, the TiO2:Ti film had relatively high optical energy gap, therefore the absorption edge showed the blue shift. The nonlinear refractive indices of TiO2:Ti films prepared at different dc powers and substrate temperatures were measured by Moire deflectometry, and were of the order of 10(-8) cm(2) W-1. By decreasing dc power and increasing substrate temperature, TiO2:Ti film exhibited lower surface roughness, higher linear refractive index and lower stress-optical coefficient. (C) 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved.[[note]]SC
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