Global ETD Search
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 6 of 6 for “"Vacuum extraction"”.
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Taint and odour phenomena in carton-board packaging systems
… analysis, dynamic headspace analysis and vacuum extraction procedures have identified a number of volatile components, that are odorous, in the inks and varnishes. These compounds, which include by-products arising from photoinitiators, amine photoactivators and residual solvents, have the …
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Asphyxia neonatorum in a developing world situation : a study of the impact of asphyxia neonatorum in term infants on the pattern of handicap in the Ciskei; an evalution of its epidemiology and a trial of the efficacy of current therapy
… of labour and delivery by caesarean section or vacuum extraction. Maternal age and the actual number of antenatal visits were not associated with asphyxia. The causes of asphyxia assigned by the specialist obstetrician in charge were cephalopelvic disproportion (CPD) (39%), utero-placental …
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The environmental effect on corrosion fatigue behavior of austenitic stainless steels
… in specimens using ToF-SIMS and hot vacuum extraction techniques. Deuterium pick-up from the testing environment was observed, and the enrichment of deuterium/hydrogen ahead of crack tip was also observed. Controlled experiments were also conducted, where specimens were baked prior to …
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Design of experimental systems for a liquid-fueled molten salt reactor
… the small scale sampler experiment showed that a vacuum extraction method was able to repeatably acquire a controlled volume of salt (0.1-0.5 grams) without introducing moisture or oxygen to the sample. The second experiment performed looked at the feasibility of measuring some short-lived (t1/2 < …
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Kinetics of hydrogen evolution and absorption during electrochemical reactions as determined by monitoring the volume of hydrogen bubbles
… performed between the P.E.T and the solid state vacuum extraction method for Ti, and between P.E.T. and the permeation method, as developed by Devanathan for Fe, and good agreement between these three methods was attained. The diffusion coefficient for Fe was found to be DH = 7 x 10- 6 cm2 s-1 , …