Listar CIT-LAIL - Artigos por autor "López, Ana"
Mostrando ítems 1-18 de 18
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A computer vision system for identification of granite-forming minerals based on RGB data and artificial neural networks
Ramil, Alberto; López, Ana; Pozo Antonio, José Santiago; Rivas Brea, Teresa (Elsevier, 2017-12-19)[Abstract]: Granitic stones are widely used in the field of Cultural Heritage in the north-western Iberian Peninsula. In some activities regarding conservation, such as the laser cleaning, it is of great interest the ... -
Building Granite Characterisation, Construction Phases, Mason’s Marks and Glyptography of Nossa Senhora de Guadalupe Church, Mouçós e Lamares, Galicia-North Portugal Euroregion
Freire, David M.; Campos, Bruno; Moreira, Patricia; Ramil, Alberto; López, Ana (Springer, 2023-03)[Abstract]: The Romanesque church of Nossa Senhora de Guadalupe of Mouçós e Lamares is located in Vila Real (North of Portugal). The exterior part of its nave is preserved almost unaltered. Most of the granite ashlars and ... -
Characterization of Talcose Rocks Derived from Serpentinite—Pilot Study in the Ultramafic Complex of Cabo Ortegal (Spain) for Potential Use and Commercialization
Pereira, Lola; Rivas Brea, Teresa; López, Ana; Ramil, Alberto; Bloise, Andrea (MDPI, 2023-11-09)[Abstract] Cabo Ortegal, in Spain, was declared a UNESCO Global Geopark in 2023. An ultramafic complex makes it a geologically exciting unit, where many research works have been carried out. Serpentinites, formed by the ... -
Development of processing strategies for 3D controlled laser ablation: Application to the cleaning of stonework surfaces
López, Ana; Lamas, Javier; Pozo Antonio, José Santiago; Rivas Brea, Teresa; Ramil, Alberto (Elsevier, 2020-03)[Abstract] Laser cleaning is an environmentally friendly method based on laser ablation processes to remove impurities or contaminants from a surface layer of a material. The configuration of a laser station in the case ... -
Dual Combination of Cleaning Methods (Scalpel, Biocide, Laser) To Enhance Lichen Removal From Granite
Pozo Antonio, José Santiago; Rivas Brea, Teresa; López de Silanes, María Eugenia; Ramil, Alberto; López, Ana (Elsevier, 2022-03)[Abstract] Three cleaning methods, namely i) a commercial biocide applied by brush with the subsequent extraction of organic remains by a rod, ii) a scalpel or iii) a Nd:YVO4 laser at 355 nm, single application as well as ... -
Femtosecond Laser Texturing as a Tool to Increase the Hydrophobicity of Ornamental Stone: The Influence of Lithology and Texture
López, Ana; Pozo Antonio, José Santiago; Moreno, Alicia; Rivas Brea, Teresa; Pereira, Lola; Ramil, Alberto (Elsevier, 2022-07)[Abstract] In the field of stone conservation, a very common direct intervention seeks to increase the water repellence of objects. By limiting the interaction between the solid and the water, the possibility of alteration ... -
Femtosecond pulsed laser ablation for paint removal at oblique illumination: effect of the incidence angle
Moreno, Alicia; López, Ana; Lamas, Javier; Ramil, Alberto (Elsevier, 2022-06-09)[Abstract] This research studies how the angle of incidence affects the ablation process when a pulsed femtosecond laser with a wavelength of 1040 nm and a high repetition rate is applied to spray paints used for graffiti. ... -
Influence of the commercial finishes of ornamental granites on roughness, colour and reflectance
López, Ana; Pozo-Antonio, José Santiago; Ramil, Alberto; Rivas Brea, Teresa (Elsevier, 2018-09)[Abstract] The effects of the four common commercial finishes (polished, honed, disc cutting and bush hammering) on several properties of ornamental granites were evaluated. Two granites of different texture, widely used ... -
Influence of the weathering rate on the response of granite to nanosecond UV laser irradiation
Rivas Brea, Teresa; Pozo Antonio, José Santiago; Ramil, Alberto; López, Ana (Elsevier, 2019-12-13)[Abstract]: Laser ablation is an accepted cleaning technology for cultural heritage stonework. Optimized laser ablation may,however, have different side effects depending on the mineralogical composition of the stone. In ... -
La investigación gallega en la aplicación de la tecnología láser para la limpieza de patrimonio cultural material: estrategias del pasado y del futuro
Pozo Antonio, José Santiago; Rivas Brea, Teresa; Ramil, Alberto; López, Ana (Universidade da Coruña, Servizo de Publicacións, 2023-12-22)[Abstract] The cleaning of cultural heritage elements is essential to ensure the durability and transmission of our cultural and artistic legacy. In Galicia, the importance of our stone-built heritage reflects the skill ... -
Investigadoras en la luz y en las tecnologías de la luz
Sánchez López, María del Mar; López, Ana; Beléndez, Augusto; García Martínez, Pascuala (Real Sociedad Española de Física, 2016)Este artículo es el resumen de la exposición "Investigadoras en la Luz y en las tecnologías de la Luz", desde sus concepción y la selección de las homenajeadas, pasando por el contenido y formato de la exposición. A través ... -
Laser versus scalpel cleaning of crustose lichens on granite
Rivas Brea, Teresa; Pozo Antonio, José Santiago; Ramil, Alberto; López, Ana (Elsevier, 2018-02-28)[Abstract]: This paper addresses the evaluation of the cleaning of crustose lichens developing on granite. The evaluation was performed considering the effectiveness of the cleanings and harmfulness exerted on the granite. ... -
Robot-assisted laser ablation for 3D surfaces. Application for paint removal with ultrashort pulse laser
Rodríguez, Ángel; López, Ana; Lamas Vigo, Javier; Moreno, Alicia; Ramil, Alberto (Elsevier, 2023-01)[Abstract] In this work, a robot-assisted laser cleaning system is presented that allows the automatic processing of 3D objects with arbitrary geometry. The system is based on the integration of a femtosecond pulse laser ... -
Sistema automatizado para a limpeza con láser de superficies non planas
Ramil, Alberto; Lamas Vigo, Javier; López, Ana (Centro de Supercomputación de Galicia, 2017-03) -
The importance of prevention when working with hazardous materials in the case of serpentinite and asbestos when cleaning monuments for restoration
Pereira, Lola; López, Ana; Ramil, Alberto; Bloise, Andrea (MDPI, 2023-01)[Abstract]: Abstract: Health risks are often overlooked when the consequences are not evident in the short term. In restoration work, some activities can generate particles that may affect the health of workers through ... -
The Value of Transfer of Knowledge in Bridging the Gender Gap in STEM
López, Ana; Pereira, Lola (MDPI, 2021-05)[Abstract] Spanish researchers’ recent evaluations regarding the transfer of knowledge have shown that activities that could help close the gender gap in STEM areas are penalized upon evaluation. The results were very ... -
Ultrafast Laser Surface Texturing: A Sustainable Tool to Modify Wettability Properties of Marble
López, Ana; Ramil, Alberto; Pozo Antonio, José Santiago; Rivas Brea, Teresa; Pereira, Lola (MDPI, 2019-07-28)[Abstract] Conservation strategies to reduce the degradation of stone caused by the action of water are focusing on increasing the hydrophobicity of the surface by imitating existing solutions in nature (lotus leafs and ... -
Visualización de procesos de microdilatación inducidos por Láser mediante el uso de interferometría holográfica digital
Götte, Agustín; Alarcón Lasagno, R.; Beltrame, C.; Romero, G.; Vincitorio, Fabio; Ramil, Alberto; López, Ana (Centro de Investigaciones en Láseres y Aplicaciones (CEILAP), 2023-03-25)[Resumen]: En este artículo se muestra el uso de holografía interferométrica digital para el estudio de procesos de microdilatación. Mediante el uso de un esquema óptico y una cámara CCD se realizaron interferogramas sobre ...