A5044120920- Advanced materials and composites
- High-Temperature Coating Behaviors
- Algebraic structures and combinatorial models
- Advanced Topics in Algebra
- Materials Engineering and Processing
- Metal Alloys Wear and Properties
- Advanced Combinatorial Mathematics
- Graphene and Nanomaterials Applications
- Nuclear and radioactivity studies
- Geological and Geophysical Studies Worldwide
- Nonlinear Waves and Solitons
- Advanced ceramic materials synthesis
- Topology Optimization in Engineering
- Urticaria and Related Conditions
- Bone Tissue Engineering Materials
- Semantic Web and Ontologies
- Rheumatoid Arthritis Research and Therapies
- Advanced Numerical Analysis Techniques
- Hydrogels: synthesis, properties, applications
- Radiation Shielding Materials Analysis
- Inflammasome and immune disorders
- Radioactivity and Radon Measurements
- Topic Modeling
- Data Quality and Management
- Metal and Thin Film Mechanics
Universidade Luterana do Brasil
2024
University of Glasgow
2021-2022
Universitat de Barcelona
2012-2018
University of Minho
2018
FC Barcelona
2014
University of Lisbon
2011
Abstract The finite dual $H^{\circ}$ of an affine commutative-by-finite Hopf algebra H is studied. Such a extension commutative A by dimensional $\overline{H}$ . main theorem gives natural conditions under which decomposes as crossed or smash product $\overline{H}^{\ast}$ the $A^{\circ}$ This decomposition then further analysed using Cartier–Gabriel–Kostant to obtain component subalgebras mapping onto classical components detailed consequences for number families examples are
Background/Objectives: The development of new materials incorporating bioactive molecules for tissue regeneration is a growing area interest. objective this study was to develop complex specifically designed bone and skin engineering, combining chitosan, ascorbic acid-2-magnesium phosphate (ASAP), β-tricalcium (β-TCP). Methods: Chitosan the complexes chitosan/ASAP chitosan/ASAP/β-TCP were prepared in membrane form, macerated particulate format, then subjected characterization through Fourier...
In this work we describe and evaluate a new software tool with GUI for structural topology optimization which uses the spectral level set methodology that can be easily integrated into multidisciplinary design environment. The is to formulate problems. Its main advantage reduction of space dimension under assumption suciently smooth interface interest. This translates more ecient way solve problems, thus increasing overall performance strategy. paper, give particular emphasis known results...
Abstract The main objective of this study is to determine the optimum conditions for cold spraying a WC-Co nanopowder on aluminum alloy and carbon steel substrates. XRD tests were run powder coatings if phase changes occurred during spraying. Coating samples evaluated via adhesion, corrosion, wear testing. Cold proved be very competitive with conventional thermal spray techniques, producing thick, dense, hard as well excellent tribological electrochemical properties.
Geologic materials are a potential source of external gamma radiation in buildings due to the presence radioisotopes ( 40 K and isotopes from U Th decay families). The contents these can be evaluated by laboratory analyses that require extraction samples, with associated financial time constraints, it is also difficult perform on already applied existing structures. In this work, portable spectrometry results compared terms estimations, activity concentration index calculated them (which...
Abstract This study evaluates the corrosion and wear resistance of WC-Co coatings produced by cold gas HVOF spraying. Three cermet powders varying in cobalt content were deposited on aluminum alloy substrates both methods. The characterized based microstructure, particle size distribution, phase composition, cross-sectional Vickers hardness. are also compared results ball-on-disk, rubber-wheel, electrochemical testing, which shows that CGS has several advantages over spraying for deposition coatings.
Abstract WC-Co cermet powders were deposited on aluminum substrates by cold gas spraying. XRD tests run the powder and coatings to reveal possible phase changes during Bonding strength, abrasive wear resistance, corrosion resistance also measured are compared with values obtained from HVOF sprayed coatings.
The objects of study in this paper are Hopf algebras $H$ which finitely generated over an algebraically closed field and extensions a commutative algebra by finite dimensional algebra. Basic structural homological properties recalled classes examples listed. Bounds obtained on the dimensions simple $H$-modules, structure is shown to be severely constrained when extension semisimple cosemisimple.
The finite dual $H^{\circ}$ of an affine commutative-by-finite Hopf algebra $H$ is studied. Such a extension commutative $A$ by dimensional $F$. main theorem gives natural conditions under which decomposes as crossed or smash product $F^{\ast}$ the $A$. This decomposition then further analysed using Cartier- Gabriel-Kostant to obtain component subalgebras mapping onto classical components $A^{\circ}$. detailed consequences for number families examples are