Exploració per tema "Espectroscòpia Raman"
Ara es mostren els items 1-20 de 43
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A new mathematical profile for experimental Raman spectra of historical mineral pigments
(Universitat Politècnica de Catalunya, 2020-07)
Treball Final de Grau
Accés obertThis final degree project (GFR) is based on the use of Raman spectroscopy as a method of characterizing pigments of mineral origin and especially those used in art. One of the fundamental objectives has been to find precise ... -
Análisis de pigmentos con espectroscopía Raman: determinación teórico-experimental de la temperatura inducida por el láser
(Universitat Politècnica de Catalunya, 2013-07-16)
Projecte/Treball Final de Carrera
Accés obert[ANGLÈS] Raman Spectroscopy is a photonics technical analysis which provides molecular information about a material. It is a non-destructive technique and the last generation of measuring systems is easily transportable. ... -
Análisis no destructivo de obras de arte con espectroscopia Raman
(Escola Tècnica Superior d'Enginyers de Telecomunicació de Barcelona, 2011)
Article
Accés obert -
Aplicación de la distancia euclídea a la identificación de pigmentos en mezclas con espectroscopia Raman
(Universitat Politècnica de Catalunya, 2016-06)
Treball Final de Grau
Accés obertIn this project, I faced the issue of the identification of pigments that are present in mixtures with the Raman spectroscopy technique. For this, first I will explain and characterize the Raman spectroscopy technique and ... -
Aplicación de la espectroscopia Raman a mezclas de pigmentos vía temperatura
(Universitat Politècnica de Catalunya, 2016-01-29)
Projecte/Treball Final de Carrera
Accés obertIn this research, Raman spectroscopy was applied in order to study the temperature induced by a laser on a material. Firstly, the mathematical profile of a Raman spectrum was described, which is a useful procedure to ... -
Aplicación de la espectroscopia Raman al estudio analítico de fármacos
(Universitat Politècnica de Catalunya, 2011-09-28)
Projecte/Treball Final de Carrera
Accés obertEnglish: Pharmacology is the science that deals with the study of drugs at several levels and Raman spectroscopy is a photonics technique of characterization chemical compounds. The union of these two concepts that can be ... -
Automatic classification system of Raman spectra applied to pigments analysis
(2016-12-01)
Article
Accés obertRaman spectroscopy is one of the few non-destructive techniques capable of identifying pigments in art works. Raman spectra contain powerful information that can be used to identify unknown compounds and their chemical ... -
Automatic classification system of Raman spectra applied to pigments analysis
(Wroclaw University, 2015)
Text en actes de congrés
Accés obert -
Automatic identification of artistic pigments by Raman spectroscopy using fuzzy logic and principal component analysis
(2006-10-27)
Article
Accés obertThis work offers an automatic identification system of Raman spectra of artistic pigments. The proposed methodology is based on a fuzzy logic system, and uses principal component analysis to reduce redundancies in data and ... -
Automatic morphology-based cubic p-spline fitting methodology for smoothing and baseline-removal of Raman spectra
(2017-01-01)
Article
Accés obertNoise filtering is considered a crucial step for the proper interpretation of Raman spectra. In this work, we present a new denoising procedure which enhances the Raman information whilst reducing unwanted contributions ... -
Avoiding frauds: Raman spectroscopy, a fundamental tool in the analysis of artworks
(2012)
Text en actes de congrés
Accés restringit per política de l'editorial -
Capas de CulnSe2 para células solares: análisis por espectroscopia Raman de capas pobres en Cu
(Universitat Politècnica de Catalunya, 2009-06)
Projecte/Treball Final de Carrera
Accés obertEn este trabajo se presenta un estudio mediante espectroscopía Raman de capas CuInSe2 sintetizadas en condiciones de defecto de Cu, en función de su composición. El interés del estudio viene motivado por el potencial de ... -
Caracterització de fil·losilicats de níquel per mitjà d'espectroscòpia Raman
(Universitat Politècnica de Catalunya, 2014-06-20)
Projecte/Treball Final de Carrera
Accés restringit per decisió de l'autor -
Caracterización de un sistema de espectroscopia Raman por fibra óptica y aplicación a diversos materiales. Ruido en detección y optimización de un espectro
(Universitat Politècnica de Catalunya, 2015-06)
Projecte/Treball Final de Carrera
Accés obertThis final project has as its main objectives, first, theoretically and experimentally to characterize a modern system of optical fiber Raman spectroscopy (iHR320 of Jobin Ybon model) and, secondly, to demonstrate their ... -
Chemometrics in Raman spectroscopy applied to artworks analysis: automatic identification of artistic pigments
(Universitat Politècnica de Catalunya, 2012-07-12)
Projecte Final de Màster Oficial
Accés obert[ANGLÈS] In an art historical context, pigment identification is exceedingly important for the conservation, interpretation and preservation of art works. In this area, there are several analytical techniques such as Raman ... -
Enhancing the sensitivity and robustness of label-free imaging systems via stimulated Raman adiabatic passage
(2012-01)
Article
Accés restringit per política de l'editorialWe show that the sensitivity and robustness of a label-free optical imaging technique based on stimulated Raman scattering (SRS) can be enhanced by using resonant optical transitions in a Raman adiabatic passage scheme. ... -
La Espectroscopía Raman aplicada a la identificación de materiales pictóricos
(Escola Tècnica Superior d'Enginyers de Telecomunicació de Barcelona, 1996)
Article
Accés obert -
Estudio de sensores poliméricos basados en mallas quirúrgicas termosensibles para detección por espectroscopía SERS
(Universitat Politècnica de Catalunya, 2022-05-18)
Treball Final de Grau
Accés obertAquest Treball de Fi de Grau tracta d'una investigació per desenvolupar un sensor basat en malles quirúrgiques de polipropilè isotàctic (iPP) que permet una detecció per espectroscòpia Raman amplificada per la superfície ... -
Estudio sobre la optimización de la detección del efecto Raman frente a la fluorescencia: aplicación a obras de arte
(Universitat Politècnica de Catalunya, 2011-11-02)
Projecte/Treball Final de Carrera
Accés obertEnglish: Nowadays, Raman spectroscopy has become a very important tool for identifying chemical compounds and their molecular structures since it is non-destructive, has null or near null requirements of sample preparation, ... -
In vivo molecular changes in the retina of patients with multiple sclerosis
(Association for Research in Vision and Ophthalmology (ARVO), 2021-05-11)
Article
Accés obertPurpose: Raman spectroscopy allows molecular changes to be quantified in vivo from the tissues like the retina. Here we aimed to assess the metabolic changes in the retina of patients with multiple sclerosis (MS). Methods: ...