Search Results - "Assis, J.T"

Visualization method for radiographic films through silver intensity mapping using X‐ray fluorescence by Gonçalves, E.A.S., Oliveira, D.F., Anjos, M.J., Assis, J.T., Oliveira, L.F., Lopes, R.T.

“…Radiographic films have a large range of applications. In many of these applications, the behavior of characteristic curves is very important for assessing the…”
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Non-Destructive Imaging Materials Investigation by Microfocus 3D X-Ray Computed Tomography by Lima, I., Assis, J.T., Apoloni, C.R., Mendonca de Souza, S., Duarte, M., Lopes, R.T.

“…The main goal of this research is to carry out a high resolution analysis in vitro of biomedical samples as well as of industrial components by Microcofus 3D…”
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Assessment of the creep life of adhesively bonded joints using the end notched flexure samples by Carneiro Neto, R.M., Akhavan-Safar, A., Sampaio, E.M., Assis, J.T., da Silva, L.F.M.

“…•Creep tests in end notched flexure (ENF) samples were performed until failure occurrence.•A significant difference in creep life was observed with a small…”
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A customized shear traction separation law for cohesive zone modelling of creep loaded ENF adhesive joints by Carneiro Neto, R.M., Akhavan-Safar, A., Sampaio, E.M., Assis, J.T., da Silva, L.F.M.

“…•A customized CZM was developed to predict the pure shear creep fracture behavior of adhesives.•End notched flexure samples were subjected to different creep…”
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Numerical and experimental analysis of bonded joints with combined loading by Carneiro Neto, R.M., Sampaio, E.M., Assis, J.T.

“…The metallic materials bonding using structural adhesives has become an increasingly used process, presenting advantages when compared to other fastening…”
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Development of a portable grazing exit X-ray fluorescence system using a gold anode X-ray tube by Santos, R.S., Oliveira, D.F., Assis, J.T., Anjos, M.J.

“…A portable grazing exit X-ray fluorescence system (GE-XRF) composed of a low power X-ray tube (gold anode), a SiPIN detector, quartz reflector and an XY table…”
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Analysis of two meteorite fragments (lunar and martian) using X-Ray microfluorescence and X-Ray computed microtomography techniques by Nascimento-Dias, B.L., Araujo, O.M.O., Machado, A.S., Oliveira, D.F., Anjos, M.J., Lopes, R.T., Assis, J.T.

“…Meteorites have been arousing the curiosity of mankind since antiquity. However, the interest in these objects goes far beyond mere curiosity in the study of…”
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Study on Brazilian 18th century imperial carriage using x-ray nondestructive techniques by Nardes, R.C., Silva, M.S., Rezier, A.N.S., Sanches, F.A.C.R.A., Gama Filho, H.S., Santos, R.S., Oliveira, D.F., Lopes, R.T., Carvalho, M.L., Cesareo, R., Zanatta, E.M., Assis, J.T., Anjos, M.J.

“…In this study was verified the presence of gold in the coatings of the emperor D. Pedro's II Berlin device, part of the Imperial Museum of Petropolis…”
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Archeological ceramic artifacts characterization through computed microtomography and X‐ray fluorescence by Machado, A.S., Oliveira, D.F., Gama Filho, H.S., Latini, R., Bellido, A.V.B., Assis, J.T., Anjos, M.J., Lopes, R.T.

“…The analysis of ceramic materials has been proven to be an indispensable tool for indirectly approaching past people and societies through their cultural…”
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Comparison of pore space features by thin sections and X-ray microtomography by Alves, H., Lima, I., Assis, J.T., Geraldes, M., Lopes, R.T.

“…Microtomographic (µCT) and thin section (TS) images were analyzed and compared regarding porosity and its distribution along the samples. The results show that…”
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2D/3D Quantification of bone morphometric parameter changes using X-ray microtomograpphy with different pixel sizes by Vidal, F., de Assis, J.T., Lopes, R.T., Lima, I.

“…In recent years, bone quantification led to a deeper knowledge of the 3D microarchitecture. In this study the bone architecture of rats was investigated based…”
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Bone quality analysis using X-ray microtomography and microfluorescence by Sales, E., Lima, I., de Assis, J.T., Gómez, W., Pereira, W.C.A., Lopes, R.T.

“…Bone quality is an evaluation index often applied in order to interpret clinical observations made upon bone health, such as bone mineral density, micro and…”
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Comparison of proton energy loss in thick absorbers in terms of a reduced calibration curve by Yevseyeva, O., de Assis, J.T., Evseev, I.G., Schelin, H.R., Ahmann, F., Paschuk, S.A., Milhoretto, E., Setti, J.A.P., Diaz, K.S., Hormaza, J.M., Lopes, R.T.

“…Monte Carlo simulations are essential for the support of particle experiments and developments of novel particle registration systems ranging from detectors…”
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Three-dimensional conic beam X-ray microtomography in bone quality by Lima, I., de Assis, J.T., Lopes, R.T.

“…In recent years, the 3D X-ray microcomputed tomography (3DμCT) has become a useful method to access the internal geometry based microarchitecture of bones. All…”
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Micro imaging analysis for osteoporosis assessment by Lima, I., Farias, M.L.F., Percegoni, N., Rosenthal, D., de Assis, J.T., Anjos, M.J., Lopes, R.T.

“…Characterization of trabeculae structures is one of the most important applications of imaging techniques in the biomedical area. The aim of this study was to…”
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Quantitative analysis of metals in soil using X-ray fluorescence by dos Anjos, M.J, Lopes, R.T, de Jesus, E.F.O, Assis, J.T, Cesareo, R, Barradas, C.A.A

“…Using energy dispersive X-ray fluorescence analysis with an X-ray tube filtered with Ti, it was possible to determine the concentration at ppm level of several…”
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Elemental concentration analysis in soil contaminated with recyclable urban garbage by tube-excited energy-dispersive X-ray fluorescence by Anjos, M.J, Lopes, R.T, Jesus, E.F.O, Assis, J.T, Cesareo, R, Barroso, R.C, Barradas, C.A.A

“…Soil and radish (Raphanus Sp) samples from areas treated with organic compost of recyclable urban garbage were quantitatively analyzed by using tube-excited…”
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X-ray diffraction tomography using interference effects by Barroso, R.C, Lopes, R.T, Gonçalves, O.D, de Assis, J.T

“…When the electromagnetic wave excites more than one electron, the coherent scatter from different electrons gives rise to interference effects. X-rays…”
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Error concealment by means of clustered blockwise PCA by Coelho, A.M., de Assis, J.T., Estrela, V.V.

“…This paper analyzes two variants of principal component analysis (PCA) for error-concealment: blockwise PCA and clustered blockwise PCA. Realistic…”
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Sub-pixel accuracy edge fitting by means of B-spline by Breder, R., Estrela, V.V., de Assis, J.T.

“…Local perturbations around contours strongly disturb the final result of computer vision tasks. It is common to introduce a priori information in the…”
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