Nuclear Evaporation
Mostrando 13-18 de 18 artigos, teses e dissertações.
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13. Mineralogia e geoquímica supergênicas do urânio - Província Uranífera de Lagoa Real, Caetité - Bahia
X Ray Diffraction and Infrared Spectroscopy (FTIR) analysis reveal that the following uranyl hidroxisilicates mainly constitute the uranium secondary mineralogy from albitites of the Cachoeira and Laranjeiras uranium anomalies (Lagoa Real BA Brazil): β-Uranophane-Ca[(UO2)(SiO3OH)]2.5(H2O); Uranophane-Ca[(UO2)(SiO3OH)]2.5(H2O); Sklodowskite-Mg[(UO2)(SiO3
Publicado em: 2005
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14. New approach to nuclear photofission reactions above 0.15 GeV
A simple approach to evaluate nuclear photofissilities at energies above the pion photoproduction threshold has been developed. It is based on the current, two-step model for intermediate-energy photonuclear reactions, i.e. a photon-induced intranuclear cascade followed by a fission-evaporation competition process for the excited, post-cascade residual nucle
Brazilian Journal of Physics. Publicado em: 2004-09
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15. BalanÃo hÃdrico e de energia em solo cultivado e sem vegetaÃÃo, para as condiÃÃes do brejo paraibano / Water and energy balance in the cultivated and bare soil in a montane area in paraiba, Brazil
In the areas of rainfed agriculture it is very important to quantify losses of water by evapotranspiration and soil evaporation. The methods used for measuring evapotranspiration and/or evaporation varies from direct measurements techniques, using lysimeters, to measurements of the water and energy balances. The precision lysimeters have high cost, being onl
Publicado em: 2004
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16. Preparação de fases estacionarias para CLAE a partir de poli(metiloctilsiloxano) sobre a silica titanizada
This work investigated the process modification of a silica surface by titanium oxide followed by the sorption and immobilization of poly(methyloctylsiloxane) (PMOS) for use as stationary phase in high performance liquid chromatography, with special applications in alkaline mobile phases. The chromatographic support of titanized-silica was obtained by the ch
Publicado em: 2001
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17. Desenvolvimento de um procedimento para a separação de 57Co e 58Co, na forma livre de carregador, a partir de alvos de niquel irradiados
The present work describes the development of a procedure for obtaining Co and Co - "carrier-free" - from nickel targets irradiated in a cyclotron and in a nuclear reactor, respectively. The irradiated nickel target is stirred in a flask containing concentrated HCl at reflux until complete dissolution of the target. After complete elimination of the solvent
Publicado em: 1979
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18. Liposome-mediated transformation of tobacco mesophyll protoplasts by an Escherichia coli plasmid.
An Escherichia coli plasmid, pLGV23neo, carrying a kanamycin resistance gene expressed in plant cells, was encapsulated into negatively charged liposomes prepared by the reverse phase evaporation technique. These liposomes were induced to fuse with tobacco mesophyll protoplasts by polyethyleneglycol treatment. Kanamycin-resistant clones were reproducibly iso