000			02061 am a22002053u 4500
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100	1	0	_aGuildner, Leslie A. _eauthor
245	0	0	_aThermal Conductivity of Gases. I. The Coaxial Cylinder Cell
260			_b[Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology, _c1962.
500			_a/pmc/articles/PMC5312817/
520			_aBy combining appropriate geometric configuration and mathematical analysis with improved measuring techniques, the cell constant of a coaxial cylinder thermal conductivity cell was determined within 0.1 percent. 1. That heat transport by convection is significantly large in a dense gas. This transport was analyzed mathematically from basic principles. The agreement of experimental results with the analysis indicated that the expressions are valid and that the convective heat transport could be accounted for with little more error than was involved in the precision of the heat transfer measurements. 2. That the heat transfer in a vacuum corresponds to the heat transfer by radiation and solid contacts in the presence of a gas. The uncertainty was that associated with the accuracy of determining the vacuum values. 3. That other effects were small enough to be computed and corrected for without increasing the uncertainty of the values of the thermal conductivity.
540			_a
540			_ahttps://creativecommons.org/publicdomain/zero/1.0/
540			_aThe Journal of Research of the National Bureau of Standards Section A is a publication of the U.S. Government. The papers are in the public domain and are not subject to copyright in the United States. Articles from J Res may contain photographs or illustrations copyrighted by other commercial organizations or individuals that may not be used without obtaining prior approval from the holder of the copyright.
546			_aen
690			_aArticle
655	7		_aText _2local
786	0		_nJ Res Natl Bur Stand A Phys Chem
856	4	1	_uhttp://dx.doi.org/10.6028/jres.066A.034 _zConnect to this object online.
999			_c1199 _d1199