Search Results - "Rojas Rocca, Rene"

CeO2–Nb2O5 photocatalysts for degradation of organic pollutants in water by Ferraz, Nathália Pereira, Nogueira, André Esteves, Marcos, Francielle Candian Firmino, Machado, Vanessa Aguiar, Rocca, René Rojas, Assaf, Elisabete Moreira, Asencios, Yvan Jesus Olortiga

“…The photocatalytic properties of CeO 2 –Nb 2 O 5 photocatalysts in heterogeneous photocatalysis (under ultraviolet and visible radiation) and in Fenton-like…”
Get full text

Deconvolution and Growth curve for Thermoluminescence glow curves by Rocca, René Rojas

“…In this work, a new program is presented that, in addition to performing the deconvolution of Thermoluminescence glow curves, allows the user to store multiple…”
Get full text

Effect of Ag Doping on Crystallography and TL Emissions of Li2O-B2O3 System by Tatumi, Sonia Hatsue, Mathias, Matheus Toshio, Rocca, René Rojas

“…The present study aimed to investigate pure lithium tetraborate (LTB) and silver (0.2%) doped LTB obtained via the solid-state route. XRD results revealed that…”
Get full text

Morphological and luminescent properties of HfO2 nanoparticles synthesized by precipitation method by Soares, Alvaro de Farias, Tatumi, Sonia Hatsue, Rocca, René Rojas, Courrol, Lilia Coronato

“…•HfO2 nanocrystals were successfully synthesized by precipitation method.•The crystallite size of 23.6 ± 2.7 nm (mean ± σ) according to Scherrer…”
Get full text

Influence of heat treatment on luminescent properties of the HfO2, synthesized by precipitation method by Soares, Alvaro de Farias, Tatumi, Sonia Hatsue, Rocca, René Rojas

“…The luminescent properties of HfO2 samples were studied considering calcinations carried out at different temperatures (1000, 1200, 1400 1600 °C). The results…”
Get full text

UV-C Radiation Dosimetry Using Phototransfer OSL of Green Quartz – Teflon Pellets by Silva, Noemi Aguiar, Tatumi, Sonia Hatsue, Rocca, René Rojas, Yee, Márcio, Nagabushana, K. R., de Farias Soares, Alvaro, Duque, Isadora Augusta Machado, Fernandes, Caroline Paschoal

“…This study presents the fabrication of dosimeters based on natural quartz crystals and polytetrafluoroethylene (Teflon®), and their use in ultraviolet type C…”
Get full text

The use of TL and OSL emissions of 3Al2O3–2SiO2:Er,Yb phosphors for dose rate estimation by Gonçalves, Katia Alessandra, Tatumi, Sonia Hatsue, Rocca, René Rojas, Ventieri, Alexandre

“…The 3Al 2 O 3 –2SiO 2 phosphors having different concentrations of erbium and ytterbium were synthetized by sol–gel technique, and thermoluminescence (TL) and…”
Get full text

DATING OF MORTAR AND BRICK OF THE MAIN DOOR OF FORTE ORANGE, ITAMARACA, PERNAMBUCO/DATACAO DE ARGAMASSA E TIJOLO DA PORTADA PRINCIPAL DO FORTE ORANGE, ITAMARACA, PERNAMBUCO by Sullasi, Henry Socrates Lavalle, Santos, Clara Diana Figueiroa, Rocca, Rene Rojas, Asfora, Viviane Khoury, de Mattos Albuquerque, Marcos A.G

“…In this study we use the Single Aliquot Regeneration protocol to perform Optically Stimulated Luminescence dating on mortar and bricks associated with the…”
Get full text

The use of TL and OSL emissions of 3Al.sub.2O.sub.3-2SiO.sub.2:Er,Yb phosphors for dose rate estimation by Goncalves, Katia Alessandra, Tatumi, Sonia Hatsue, Rocca, Rene Rojas, Ventieri, Alexandre

“…The 3Al.sub.2O.sub.3-2SiO.sub.2 phosphors having different concentrations of erbium and ytterbium were synthetized by sol-gel technique, and thermoluminescence…”
Get full text

Waterproofing pellets for Optically Stimulated Luminescence dosimetry by Rocca, René Rojas, Paschoal Fernandes, Caroline

“…Several doped materials are being studied for dosimetric application, but when some dopant is used with the aim to increase the sensibility, some of these can…”
Get full text

Sintering sodium chloride crystals for applications in optically stimulated luminescence (OSL) dosimetry by Vieira Lucena, Julia, Rojas Rocca, René

“…The main objective of this work was to study a new technique for the sintering of marine sodium chloride (NaCl) crystals obtained from seawater. In order to…”
Get full text

DATAÇÃO DE ARGAMASSA E TIJOLO DA PORTADA PRINCIPAL DO FORTE ORANGE, ITAMARACÁ, PERNAMBUCO by Lavalle Sullasi, Henry Sócrates, Figueirôa Santos, Clara Diana, Rojas Rocca, Rene, Khoury Asfora, Viviane, Albuquerque, Marcos

“…Este trabalho teve por objetivo datar argamassa e tijolos do período colonial pernambucano pela técnica de Luminescência Opticamente Estimulada (LOE),…”
Get full text

DATAÇÃO DE ARGAMASSA E TIJOLO DA PORTADA PRINCIPAL DO FORTE ORANGE, ITAMARACÁ, PERNAMBUCO by Lavalle Sullas, Henry Sócrates, Figueirôa Santos, Clara Diana, Rojas Rocca, Rene, Khoury Asfora, Viviane, A. G. de Mattos Albuquerque, Marcos

“…Este trabalho teve por objetivo datar argamassa e tijolos do período colonial pernambucano pela técnica de Luminescência Opticamente Estimulada (LOE),…”
Get full text

DATING OF MORTAR AND BRICK OF THE MAIN DOOR OF FORTE ORANGE, ITAMARACA, PERNAMBUCO/DATACAO DE ARGAMASSA E TIJOLO DA PORTADA PRINCIPAL DO FORTE ORANGE, ITAMARACA, PERNAMBUCO by Sullasi, Henry Socrates Lavalle, Santos, Clara Diana Figueiroa, Rocca, Rene Rojas, Asfora, Viviane Khoury, de Mattos Albuquerque, Marcos A.G

“…In this study we use the Single Aliquot Regeneration protocol to perform Optically Stimulated Luminescence dating on mortar and bricks associated with the…”
Get full text

Effect of Ag Doping on Crystallography and TL Emissions of $${{\text{Li}}}_{2}{\text{O}}{\,-\,{\text{B}}}_{2}{{\text{O}}}_{3}$$ System by Tatumi, Sonia Hatsue, Mathias, Matheus Toshio, Rocca, René Rojas

Get full text

Evolution of the Post-Barreiras Sediments in the coastal zone of São Luís Basin, Maranhão, Brazil by Dilce de Fátima Rossetti, Renê Rojas Rocca, Sonia Hatsue Tatumi

“…The Post-Barreiras Sediments have been poorly studied,despite their interest for reconstituting sea-level fluctuations and the tectonic history in the…”
Get full text

Evolução dos Sedimentos Pós-Barreiras na zona costeira da Bacia São Luís, Maranhão, Brasil by Rossetti, Dilce De Fátima, Rocca, Renê Rojas, Tatumi, Sonia Hatsue

“…Os Sedimentos Pós-Barreiras têm sido pouco estudados, apesar do interesse em reconstituições do nível do mar e da tectônica no Quaternário. Esses estratos…”
Get full text