Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Maria Helena Paranhos Gazineu"'
Autor:
Elvis Joacir de França, Maria Helena Paranhos Gazineu, Patrícia B. Silveira, Clovis A. Hazin, Claudia M. Braga Poggi, E. E. G. Farias, Crescêncio Andrade da Silva Filho
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 306:667-672
The purpose of this work was to determine concentrations of 226Ra, 228Ra and 40K in scales generated inside industrial boilers. Radionuclide activities were determined by high resolution gamma-ray spectrometry. Activity concentrations of 226Ra were i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab3106ac59da6dfab38896dc26874c4f
https://doi.org/10.1007/s10967-015-4318-8
https://doi.org/10.1007/s10967-015-4318-8
Autor:
Valdemir Alexandre dos Santos, Maria Helena Paranhos Gazineu, Carlos Costa Dantas, Clovis A. Hazin, Wagner Eustaquio de Vasconcelos
Publikováno v:
Progress in Nuclear Energy. 53:1140-1144
The estimated amount of plaster wastes in the construction industry is 45%. The reduction of these wastes is of concern, as the cost of lost material and the waste management can affect the competitiveness of the industry. The blend of plaster with a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d28d173ca5aa48d558cdd1715abe85f9
https://doi.org/10.1016/j.pnucene.2011.06.014
https://doi.org/10.1016/j.pnucene.2011.06.014
Autor:
Ranjendra Narain, Maria Helena Paranhos Gazineu, Carlos Costa Dantas, Carlos Alberto Brayner de Oliveira Lira, Wagner Eustaquio de Vasconcelos, Valdemir Alexandre dos Santos
Publikováno v:
Progress in Nuclear Energy. 53:1185-1189
Nowadays, except for very few imported furnaces, the monitoring of the conversion of the produced plaster at the Pole Plaster of Araripe is not done with aid of online techniques. This research work shows a simulation of operational conditions with a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6e6896c36d07ba41d10d7d89c78c504
https://doi.org/10.1016/j.pnucene.2011.08.001
https://doi.org/10.1016/j.pnucene.2011.08.001
Autor:
Clovis A. Hazin, José Marcos de O. Godoy, Andressa Arruda de Araújo, Yana Batista Brandão, Maria Helena Paranhos Gazineu
Publikováno v:
Journal of Environmental Radioactivity. 81:47-54
Scales and sludge generated during oil extraction and production can contain uranium, thorium, radium and other natural radionuclides, which can cause exposure of maintenance personnel. This work shows how the oil content can influence the results of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e8e02193d0469154463de370d2013c7
https://doi.org/10.1016/j.jenvrad.2004.11.003
https://doi.org/10.1016/j.jenvrad.2004.11.003