Zobrazeno 1 - 10 of 33 pro vyhledávání: '"W B, Mann"'
2
An International Reference Material for Radiocarbon Dating
Autor: W B Mann
Publikováno v: Radiocarbon. 25:519-527
In August 1980, the National Bureau of Standards (NBS) issued, in the form of oxalic acid, a new International Reference Material of contemporary 14C for use in radiocarbon dating laboratories. This reference material was to replace the 1975 oxalic-a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a15be00754367b510456232f8c054fac
https://doi.org/10.1017/s0033822200005816
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3
THE HALF LIFE OF C14
Autor: R. C. Hawkings, W. H. Stevens, W. B. Mann, R. F. Hunter
Publikováno v: Canadian Journal of Research. :545-554
Compensated gas counters of known efficiency, filled with carbon disulphide and carbon dioxide containing a mass-spectrometrically determined proportion of C14O2, have been used to determine the half life of C14. The half life has been found to be 63
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2267408ce1ee82ac007a9ce515110664
https://doi.org/10.1139/cjr49b-054
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7
The thermal conductivities of the saturated hydrocarbons in the gaseous state
Autor: W. B. Mann, B. G. Dickins
Publikováno v: Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character. 134:77-96
The purpose of the present research has been to investigate the bearing of molecular structure on the thermal conductivities of the gaseous saturated hydrocarbons. The first four members of this family of hydrocarbons, namely, methane, ethane, propan
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::13b411e6b74cb81e59a9f59451e60554
https://doi.org/10.1098/rspa.1931.0183
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8
The exchange of energy between a platinum surface and helium atoms and its dependence upon the structure of the surface
Autor: W. B. Mann
Publikováno v: Proceedings of the Royal Society of London. Series A - Mathematical and Physical Sciences. 161:236-247
In a previous communication (Mann 1934) it was recorded that the accommodation coefficient for helium atoms relative to a platinum surface at 100°C., which had been cleaned by heating for some hours at 1000°C., was considerably lower than the value
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::66c98f5d4636437feb735f1d02e255d0
https://doi.org/10.1098/rspa.1937.0143
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9
A Geiger‐Mueller Counting Unit and External Quenching Equipment for the Estimation of C14 in Carbon Dioxide
Autor: G. B. Parkinson, W. B. Mann
Publikováno v: Review of Scientific Instruments. 20:41-47
A counter unit and external quenching circuit for use with carbon dioxide and carbon disulfide mixtures are described. The counter unit consists of a long and short counter to eliminate end effects. The quenching circuit, which depends on the action
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::76b5fda1fadc09dd4a8ddea650345ba9
https://doi.org/10.1063/1.1741348
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