Buscar
Mostrando ítems 1-10 de 16
Assessment by laser-induced breakdown spectroscopy of penetration depth in limestones of four nano-biocides based on silver/titanium nanoparticles
(Elsevier, 2022-10-31)
[Abstract]: Four biocidal treatments based on nanoparticles were designed and their penetration depths were char- acterized by laser-induced breakdown spectroscopy (LIBS) technique. This kind of biocidal nanoparticles are ...
Mapping capability of linear correlation statistics for characterization of complex materials using laser-induced breakdown spectroscopy
(Elsevier, 2022-09-22)
[Abstract]: In this work, the capability of linear correlation statistics for chemical mapping by laser-induced breakdown spectroscopy (LIBS) has been studied for the first time for the characterization of samples with ...
Femtosecond pulsed laser ablation for paint removal at oblique illumination: effect of the incidence angle
(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. ...
Using Hyperspectral Imaging to Quantify Phototrophic Biofilms on Granite
(International Society for Environmental Information Sciences, 2020-03)
[Abstract]: This paper reports a non-invasive method for in situ biofilm quantification based on the use of hyperspectral imaging to analyze a chromatically and texturally heterogeneous substrate as granite colonized by ...
Femtosecond Laser Texturing as a Tool to Increase the Hydrophobicity of Ornamental Stone: The Influence of Lithology and Texture
(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 ...
Dual Combination of Cleaning Methods (Scalpel, Biocide, Laser) To Enhance Lichen Removal From Granite
(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 ...
Enhancement of graffiti removal from heritage stone by combining laser ablation and application of a solvent mixture
(Elsevier, 2020-11)
[Abstract] In this study, it was evaluated the combined cleaning treatment based on laser ablation followed by the application of chemical products for removing alkyd graffiti paint from two different types of stone. Three ...
Development of processing strategies for 3D controlled laser ablation: Application to the cleaning of stonework surfaces
(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 ...
The Value of Transfer of Knowledge in Bridging the Gender Gap in STEM
(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 ...
Laser Surface Modification in Ti-xNb-yMo Alloys Prepared by Powder Metallurgy
(MDPI, 2021-02)
[Abstract] The main objective was to study the effect of surface modification by laser on Ti-Nb-Mo powder metallurgical alloys to improve their mechano-chemical behavior and their application as a biomedical implant. The ...