Results 141 to 150 of about 23,535 (202)
Sodium VCHP with Carbon-Carbon Radiator for Radioisotope Stirling Systems
AIP Conference Proceedings, 2010 In a Stirling radioisotope system, heat must continually be removed from the General Purpose Heat Source (GPHS) modules to maintain the modules and surrounding insulation at acceptable temperatures. The Stirling converter normally provides this cooling.
Calin Tarau +4 more
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A radioisotope method for locating points of entry of carbon monoxide into the cabin of an aircraft
The International Journal of Applied Radiation and Isotopes, 1966 Abstract The point of entry carbon monoxide exhaust gas into the cabin of a light aircraft during flight has been identified by a radioisotope technique. Krypton-85 gas was into the aircraft engine and the cabin monitored with a plastic phosphor detector.
W R, Ellis, B W, Seatonberry
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Radioisotope tracer studies of inorganic carbon and Ca in microbially derived CaCO3
Geochimica et Cosmochimica Acta, 1999 Abstract Microbial calcification significantly impacts the cycling and deposition of inorganic carbon. This research employs 45 Ca and 14 C techniques as radioisotopic tracers to examine the role of cellular cycling of Ca 2+ and inorganic carbon in CaCO 3 precipitation by the unicellular green alga Nannochloris atomus .
Kimberly K Yates, Lisa L Robbins
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Journal of the European Ceramic SocietyNew C/SiC composites with continuous fibers were produced through impregnation of carbon fiber preforms and consolidation by hot pressing. The resulting sintered material was investigated as a potential target for nuclear applications, such as radioisotope production.
Sciti D. +8 more
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International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes, 1992 Abstract Cement bound wood bricks are widely used as building element for light construction buildings. Static characteristics of bricks can be considerably improved by treating the raw mixture of cement-wood-water with carbon dioxide during the bonding process. Distribution of the CO2 among components and within the components is an important factor
H. Rahimi, L. Baranyai
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A radioisotopic tracer study of carbon formation in ethanol-air diffusion flames
Combustion and Flame, 1970 Experimental results have been obtained which show that carbon formation in ethanol-air diffusion flames occurs preferentially from the nonhydroxylated carbon atom of the ethanol molecule. The ratio of the contribution to solid carbon of the nonhydroxylated carbon atom to that of the hydroxylated atom equals 2:1.
D.F. Lieb, L.H.S. Roblee
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Recording micro-densitometer employing beta-radiation from a carbon-14 radioisotope source
British Journal of Applied Physics, 1961 The variation of wood density through the thickness of the individual growth rings of trees is of interest to those concerned with research on the growing of trees and the subsequent utilization of the timber. An experimental instrument has been developed in which a finely collimated beam of carbon-14 beta-particles is used to measure the density ...
R A Lloyd, E H Adams
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Isotopenpraxis Isotopes in Environmental and Health Studies, 1983 Some examples of radioisotope application from the cooperation for many years between the VEB Elektrokohle Lichtenberg Berlin and the Academy of Sciences of the GDR are told, Radiotracer and autoradiographical methods have been very helpful for the distinction between several components of the carbon or silicon carbide materials in milling, mixing ...
K. Wagner +5 more
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[Radioisotopic assays of rates of carbon monoxide conversion by anaerobic thermophilic prokaryotes].
Mikrobiologiia, 2008 The rate of CO conversion by a pure culture of a thermophilic CO-oxidizing, H2-producing bacterium Carboxydocella sp. strain 1503 was determined by the radioisotopic method. The overall daily uptake of 14CO by the bacterium was estimated at 38-56 micromol CO per 1 ml of the culture.
T V, Slepova +4 more
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Analytical Biochemistry, 1988 Measurement of specific radioactivity by a high-performance liquid chromatograph with a synchronized accumulating radioisotope detector was conducted. Accuracy of measurement for an authentic sample containing 0.2 nCi of tryptophan labeled with carbon-14 exceeded 95%.
S, Baba, J, Yamaguchi, M, Horie
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