Results 231 to 240 of about 523,009 (263)
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Influence of oxygen in plasma nitriding
International Heat Treatment and Surface Engineering, 2009AbstractThe development of low temperature nitriding treatments to enhance wear resistance over the past 40 years is reviewed. The progress achieved is illustrated with evidence from extensive laboratory investigations and industrial trials on textile machine components and other parts.
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Anodization of Silicon in RF Induced Oxygen Plasma
Japanese Journal of Applied Physics, 1979Silicon dioxide films were grown on Si substrates by anodization in RF induced oxygen plasma at the pressure of 0.2 Torr and temperature of 600°C. SiO2 films of 1 µm in thickness were obtained within one hour. The selective oxidation was studied and Al2O3 was found to be effective in masking against the oxidation.
Ho Quoc VU, Takuo SUGANO
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Proton and oxygen plasmas at Uranus
Journal of Geophysical Research: Space Physics, 1987Despite the presence of several large, icy moons within the Uranian magnetosphere, the Voyager 2 spacecraft did not detect any heavy ion plasma. This paper estimates the heavy ion density that would be consistent with a heavy neutral torus formed by photosputtering, charged particle sputtering, and micrometeoroid impact vaporization of icy surfaces on ...
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Bandgap opening in oxygen plasma-treated graphene
Nanotechnology, 2010We report a change in the semimetallic nature of single-layer graphene after exposure to oxygen plasma. The resulting transition from semimetallic to semiconducting behavior appears to depend on the duration of the exposure to the plasma treatment. The observation is confirmed by electrical, photoluminescence and Raman spectroscopy measurements.
Nourbakhsh, Amirhasan +9 more
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Platelet Storage: An Assessment of the Requirements for Plasma and Oxygen
Transfusion, 1981Platelets from several units of plasma were pooled, and then resuspended either as platelet concentrate (PC) (60 ml) or as platelet rich plasma (PRP) (220 ml) and followed during 72 hours of storage at 22 C. Aggregation, pH, and hypotonic shock response are better maintained in the larger volume of plasma.
G, Rock +4 more
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Laser Diagnostic of Radio-Frequency Oxygen Plasma
1990We started the investigation of radio-frequency discharges of oxygen-noble mixtures because they are known to be efficient “generators” of atomic oxygen. In addition the discharge, in absence of chemical reactions at the electrodes, is particularly clean to allow high resolution laser spectroscopy investigations [1],[2],[3] which were our main purpose.
TINO, GUGLIELMO MARIA +3 more
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Discharge Processes in the Oxygen Plasma
1981Abstract : The electric glow discharge in oxygen was experimentally studied and mathematically modeled for the parameter space of one to ten torr of pressure and for current densities up to 35 milliamperes per square centimeter. Experimentally it was observed that the oxygen discharge existed in one of two forms: a high-electric-field form or a low ...
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Oxygen Consumption of Blood and Plasma and the Percentage of Reticulocytes.
Acta Physiologica Scandinavica, 1959Abstract.Determinations of plasma and blood oxygen consumption during and after reticulocytosis due to repeated bleedings were performed on arterial blood samples taken from 9 rabbits. Plasma oxygen consumption showed no consistent relation to the degree of reticulocytosis.
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