Search Results - "Appoloni, Carlos R."
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Effects of manual threshold setting on image analysis results of a sandstone sample structural characterization by X-ray microtomography
Published in Applied radiation and isotopes (01-06-2012)“…Binarization process plays an important role in structural characterization by means of micro-CT images analysis. The choice of the correct threshold to…”
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Pore size distributions convolution for microtomographic images applied to Shark Bay's oolite
Published in Micron (Oxford, England : 1993) (01-07-2017)“…•A pore size distribution convolution obtained by microtomographic images applied to an oolite from Sharks Bay, Australia.•The weight factor that allows…”
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X‐ray fluorescence spectroscopy and Monte Carlo simulation for quantitative characterization of Bolivian pre‐Hispanic golden artefacts
Published in X-ray spectrometry (01-01-2021)“…The quantification of archaeological artefacts with X‐ray Fluorescence is quite complex because it demands some calibration procedure. It is also rather more…”
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Mitochondria-rich cells adjustments and ionic balance in the Neotropical fish Prochilodus lineatus exposed to titanium dioxide nanoparticles
Published in Aquatic toxicology (01-07-2018)“…•Acute exposure to TiO2-NP induces osmotic and ionic unbalance in fish.•Acute exposure to TiO2-NP inhibits NA+/K+-ATPase, H+-ATPase and carbonic…”
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Accuracy evaluation of an X-ray microtomography system
Published in Micron (Oxford, England : 1993) (01-06-2016)“…•We verify the accuracy of microtomograph with nylon lines with known diameter.•The microtomographic system showed excellent results for the standard…”
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Applicability of an X-ray and gamma-ray portable spectrometer for activity measurement of environmental soil samples
Published in Radiation measurements (01-08-2010)“…This paper presents a study on the applicability of a commercial X-ray and gamma-ray portable spectrometer (Rover) for in situ gamma-ray spectrometry. This…”
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Some geological characteristics in a regolith-limey shale rock profile through natural radionuclides distribution
Published in Applied radiation and isotopes (01-09-2010)“…The objective of this work is to study some geological characteristics in a regolith-rock profile by analyzing the distribution of natural radionuclides along…”
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Materiais pictóricos da cerâmica Guarani do alto Uruguai a partir de medidas de fluorescência de raios X
Published in Revista do Museu de Arqueologia e Etnologia (13-04-2018)“…Os Guarani pré-coloniais estavam distribuídos por grandes áreas da América do Sul, especialmente em regiões da Bacia do Rio da Prata e zonas litorâneas do Sul…”
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Computed Radiography, PIXE and XRF analysis of pre-colonial pottery from Maranhão, Brazil
Published in Microchemical journal (01-05-2018)“…This work concerns the archaeometric analysis of ceramic fragments from archaeological excavations carried out in “Sambaqui do Bacanga”, “Sambaqui do…”
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Characterization of porous microstructure by x-ray microtomography
Published in X-ray spectrometry (01-03-2002)“…Knowledge of the porous structure of amorphous material is of fundamental importance in calculating geometric parameters such as total porosity, pore size…”
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Study of plant remains from a fluvial shellmound (Monte Castelo, RO, Brazil) using the X-ray MicroCT imaging technique
Published in Journal of archaeological science, reports (01-08-2019)Get full text
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Optimization of measure parameters for an X- and gamma-ray spectrometry portable system
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (2008)“…In order to optimize the use of a system for in situ gamma ( γ)- and X-ray spectrometry composed of a 3×3×1 mm 3 Cadmium Telluride (CdTe) detector with respect…”
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Guarani ceramics pictorial material from X-ray fluorescence measurements/Materiais pictoricos da ceramica Guarani do alto Uruguai a partir de medidas de fluorescencia de raios X
Published in Revista do Museu de Arqueologia e Etnologia (01-01-2017)“…The precolonial Guarani used to be spread over large areas in South America, especially in regions of the Prata River basin and Brazil's coastal areas. Their…”
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Minimum level of component discrimination for characterization of biphasic mixtures (oil / brine or gas) using gamma and x-ray transmission
Published in Semina. Ciências exatas e tecnológicas (01-09-2011)“…In this paper we propose the concept of Minimum Level of Component Discrimination (NMDC) to determine the components discrimination in a biphasic mixture. A…”
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O sapo dourado do arquivo pessoal de Mário de Andrade analisado com o método não destrutivo de fluorescênciade raios X
Published in Revista do Instituto de Estudos Brasileiros (01-09-2012)Get full text
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Nível mínimo de discriminação de componente para caracterização de misturas bifásicas (petróleo/água salgada ou gás) usando transmissão de raios-x ou gama
Published in Semina. Ciências exatas e tecnológicas (01-12-2011)“… Neste trabalho propomos o conceito de Nível Mínimo Discriminação de Componentes (NMDC) para determinar a discriminação de componentes de uma mistura…”
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Uso da fluorescência de raios X portátil (XRF) in vivo como técnica alternativa para acompanhamento dos níveis de ferro em pacientes com sobrecarga de ferro The in vivo use of portable X-ray fluorescence as an alternative technique for the accompaniment of iron levels in patients with iron loading
Published in Revista brasileira de hematologia e hemoterapia (01-01-2009)“…Foi investigada a viabilidade da aplicação da técnica de fluorescência de raios X (XRF) como alternativa para acompanhamento dos níveis de ferro em pacientes…”
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Uso da fluorescência de raios X portátil (XRF) in vivo como técnica alternativa para acompanhamento dos níveis de ferro em pacientes com sobrecarga de ferro
Published in Revista brasileira de hematologia e hemoterapia (2009)“…Foi investigada a viabilidade da aplicação da técnica de fluorescência de raios X (XRF) como alternativa para acompanhamento dos níveis de ferro em pacientes…”
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A Arqueometria e a Análise de Artefatos Cerâmicos
Published in Revista de arqueologia (Rio de Janeiro, Brazil) (01-12-2004)“…Este trabalho trata da análise arqueométrica de diferentes conjuntos cerâmicos arqueológicos e etnográficos atribuídos a populações Tupi. O objetivo é…”
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arqueometria e a análise de artefatos cerâmicos: um estudo de fragmentos cerâmicos etnográficos e arqueológicos por fluorescência de Raios X (EDXRF) e transmissão Gama
Published in Revista de arqueologia (Rio de Janeiro, Brazil) (30-06-2004)“…Este trabalho trata da análise arqueométrica de diferentes conjuntos cerâmicos arqueológicos e etnográficos atribuídos a populações Tupi. O objetivo é…”
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