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Listar por palabra clave "X-ray"

Mostrando ítems 1-12 de 12

3D measurements in conventional X-ray imaging with RGB-D sensors

Albiol Colomer, Francisco; Corbi, Alberto; Albiol Colomer, Alberto (Elsevier, 2017-04)

[EN] A method for deriving 3D internal information in conventional X-ray settings is presented. It is based on the combination of a pair of radiographs from a patient and it avoids the use of X-ray-opaque fiducials and ...
Análisis de los distintos materiales responsables de la coloración de pintura y pólvora pirotécnica mediante la aplicación de rayos X de fluorescencia

Tudela Fernández, Alfonso (Universitat Politècnica de València, 2017-10-03)

[ES] El objetivo principal del proyecto es determinar la presencia de diversas sustancias y pigmentos metálicos responsables de la coloración de pinturas y la pólvora pirotécnica, es decir, realizar un análisis de la ...
Application of the Monte Carlo codes PENELOPE and MCNP5 to unfold X-ray spectra in the diagnostic energy range

Gallardo Bermell, Sergio; Querol Vives, Andrea; Pozuelo Navarro, Fausto; Verdú Martín, Gumersindo Jesús; Ródenas Diago, José (Elsevier, 2014-02)

Obtaining primary X-ray spectra is a complex task mainly due to the high fluence of X-rays. In order to avoid the pile up effect in the detector, an indirect method based on the Compton scattering interactions in a low ...
Application of the MTSVD unfolding method for reconstruction of primary X-ray spectra using semiconductor detectors

Gallardo Bermell, Sergio; Ródenas Diago, José; Querol Vives, Andrea; Verdú Martín, Gumersindo Jesús (Elsevier, 2011-11)

[EN] A thorough knowledge of the primary spectrum is very important to perform a quality control (QC) of X-ray tubes. In previous works, a methodology to assess primary spectrum using a Compton spectrometer and applying ...
Complex high-pressure polymorphism of barium tungstate

Gomis Hilario, Oscar; Sans, J. A.; Lacomba-Perales, R.; Errandonea, D.; Meng, Y.; Chervin, J. C.; Polian, A. (American Physical Society, 2012-08-27)

We have studied BaWO 4 under compression at room temperature by means of x-ray diffraction and Raman spectroscopy. When compressed with neon as a pressure-transmitting medium (quasihydrostatic conditions), we found that ...
Dos décadas de inspección radiográfica en España: retrospectiva y horizontes en un contexto de cambio tecnológico

Madrid García, José Antonio (Instituto Nacional de Antropología e Historia (México), 2014-12)

[ES] Con motivo del cumplimiento de dos decenios de trabajo del Laboratorio de Inspección Radiográfica del Instituto Universitario de Restauración del Patrimonio (IRP), perteneciente a la Universidad Politécnica de Valencia ...
Effect of pressure on La-2(WO4)(3) with a modulated scheelite-type structure

Sabalisck, N.P.; Lopez Solano, Javier; Guzmán-Afonso, C.; Santamaría Pérez, David; González-Silgo, C.; Mújica, Andrés; Muñoz, Alfonso; Rodríguez Hernández, Plácida; Radescu, Silvana; Vendrell, X.; Mestres, L.; Sans Tresserras, Juan Ángel; Manjón Herrera, Francisco Javier (American Physical Society, 2014-05-27)

We have studied the effect of pressure on the structural and vibrational properties of lanthanum tritungstate La2(WO4)3. This compound crystallizes under ambient conditions in the modulated scheelite-type structure known ...
Estudios, ensayos y resultados en la aplicación de la tomografía axial de multicorte al análisis de esculturas de alta permeabilidad

Guerola Blay, Vicente; Gironés Sarrió, Ignasi (Instituto Universitario de Restauración del Patrimonio de la UPV, 2006)

La utilización de técnicas radiográficas aplicadas al estudio de obras de arte ha posibilitado el descubrimiento de información, datos y obtención de imágenes inéditas y difícilmente accesibles hasta el momento. La evolución ...
Microstructural characterization of apple tissue during drying using X-Ray microtomography

Rahman, M. M.; Billah, M. M.; Khan, M.I.H.; Karim, Azharul (Editorial Universitat Politècnica de València, 2018-09-07)

[EN] This study aims to investigate the complex microstructural changes in plant-based food materials during drying by using X-ray micro-computed tomography (X-ray µCT) along with the image analysis. The apple samples were ...
Modelling and validation of near-field Diesel spray CFD simulations based on the Σ -Y model

Desantes Fernández, José Mª; García Oliver, José María; Pastor, J.M.; Pandal, A.; Naud, B.; Matusik, K.; Duke, D.; Kastengren, A.; Powell, C.; Schmidt, D.P. (Editorial Universitat Politècnica de València, 2017-07-28)

[EN] Diesel spray modelling still remains a challenge, especially in the dense near-nozzle region. This region is difficult to experimentally access and also to model due to the complex and rapid liquid and gas interaction. ...
Use of telemetry X-ray techniques in large-size pictorial works

Madrid García, José Antonio (Grupo Español del IIC (International Institute for Conservation of Historic and Artistic Works), 2013)

[EN] In recent years, with the rise of digital technologies and the concurrent demise of related analog instrumentation, researchers in the field of cultural heritage have faced significant new challenges implementing ...
X-ray radiography of cavitation in a beryllium alloy nozzle

Duke, Daniel J.; Matusik, Katarzyna E.; Kastengren, Alan L.; Swantek, Andrew B.; Sovis, Nicholas; Payri, Raul; Viera-Sotillo, Juan Pablo; Powell, Christopher F. (SAGE Publications, 2017)

[EN] Making quantitative measurements of the vapor distribution in a cavitating nozzle is difficult, owing to the strong scattering of visible light at gas-liquid boundaries and wall boundaries, and the small lengths and ...