A5051309356- Laser Material Processing Techniques
- Building materials and conservation
- Cultural Heritage Materials Analysis
- Laser-induced spectroscopy and plasma
- Conservation Techniques and Studies
- Social Sciences and Policies
- Epoxy Resin Curing Processes
- Synthesis and properties of polymers
- Surface Roughness and Optical Measurements
- Optical measurement and interference techniques
- 3D Surveying and Cultural Heritage
- Advanced Condensed Matter Physics
- Physics of Superconductivity and Magnetism
- Thermoregulation and physiological responses
- Digital Holography and Microscopy
- Lichen and fungal ecology
- Bone Tissue Engineering Materials
- Laser-Ablation Synthesis of Nanoparticles
- Photopolymerization techniques and applications
- Technology in Education and Healthcare
- Engineering and Information Technology
- Polymer crystallization and properties
- Galician and Iberian cultural studies
- Analytical chemistry methods development
- Laser Applications in Dentistry and Medicine
Universidade da Coruña
2015-2024
Centro Laser
2018
Universidade Politecnica
2016
Universidade de Vigo
2013
Universidade do Estado do Rio de Janeiro
2007-2012
Consejo Superior de Investigaciones Científicas
2009
Universidade de Santiago de Compostela
1991
In this work, a robot-assisted laser cleaning system is presented that allows the automatic processing of 3D objects with arbitrary geometry. The based on integration femtosecond pulse 6-degree-of-freedom (6 DOF) robotic arm and profilometer to capture geometry workpiece. An procedure performed generate paths over geometry, which finally targeted by source means prescribed robot motion; thus, both working distance normal incidence beam are kept fixed for each point surface. manipulator...
Fibreboard production is one of the most important industrial activities in Galicia (Spain). Great amounts wastewater are generated, with properties depending on type wood, treatment process, final product and water reusing, among others. These effluents characterized by a high chemical oxygen demand, low pH nutrients limitation. Although anaerobic digestion suitable processes for treatment, lately bioplastics (mainly polyhydroxyalkanoates) from wastewaters mixed cultures being evaluated....
Conservation strategies to reduce the degradation of stone caused by action water are focusing on increasing hydrophobicity surface imitating existing solutions in nature (lotus leafs and others). These mainly based existence hierarchical roughness with micro- nanoscale structures. In case marble, research has focused protective coatings that sometimes dangerous for health environment, undesirable effects such as color changes or reduction vapor permeability stone. Laser texturing, however,...
This research studies how the angle of incidence affects ablation process when a pulsed femtosecond laser with wavelength 1040 nm and high repetition rate is applied to spray paints used for graffiti. Flat test samples were painted using four different (red, blue, black silver). All had an organic base but physicochemical properties. For each paint, was characterized confocal microscopy, determining threshold fluence penetration depth radiation at normal incidence. sample tilt angles in...
In the field of stone conservation, a very common direct intervention seeks to increase water repellence objects. By limiting interaction between solid and water, possibility alteration due action (liquid or solid) as well that related colonisation surfaces by organisms is reduced. To decrease wettability, chemicals are often applied create surface layer; however, laser texturing, currently used in different industrial technological fields, could be considered an alternative procedure, thus...
Abstract The Romanesque church of Nossa Senhora de Guadalupe Mouçós e Lamares is located in Vila Real (North Portugal). exterior part its nave preserved almost unaltered. Most the granite ashlars and corbels that make up this have a mason’s mark centre their faces. building granites (Sanguinhedo Vale das Gatas) been identified characterised petrographically petrophysically. marks as well identified; all with visible mapped, glyptographic study has carried out. In addition, surface roughness...
In this work we investigated the use of ultrashort laser pulses to clean antifouling paint from samples glass fibre reinforced polymer (GFRP), a composite material widely used in shipbuilding. Samples were prepared with two types paint, self-polishing and hard matrix, according scheme shipyard. The paints GFRP substrate characterised by Fourier transform infrared (FTIR) spectroscopy scanning electron microscopy (SEM) energy dispersive X-ray spectrometry (EDS). effectiveness cleaning...
Abstract By employing differential scaning calorimetry, DSC, we have studied, under isothermal conditions, the kinetics of cure reaction for a system containing diglycidyl ether bisphenol A (DGEBA) and 1,3‐bisaminomethylcyclohexane (1,3‐BAC) as curing agent, over temperature range 60–110°C. We determined conversions reached at several temperatures rates. The experimental data, showing an autocatalytic behavior, were compared with model proposed by Kamal, which includes two rate constants, k...