Master's Thesis
— 2025
Porous stone materials, such as limestone and sandstone, are commonly found in Portuguese heritage, holding significant cultural, artistic, and historical value. However, due to their intrinsic characteristics and environmental exposure, these materials are vulnerable to degradation, which threatens…
Master's Thesis
Application of BIM to Building Construction Planning Comparison with Traditional Methodologies
— 2025
This dissertation studies how Building Information Modelling (BIM) can improve construction planning compared to traditional methods. It shows how BIM supports better time control, clearer organization, and improved communication in construction projects. Traditional planning tools like Gantt cha…
Master's Thesis
High Accuracy Numerical Solutions of the Boltzmann-BGK Equation for Elementary Rarefied Gas Flows
— 2025
This Dissertation presents the application of an integro-moment numerical method to classical problems in rarefied gas dynamics, modeled using the BGK approximation of the Boltzmann equation. Four problems are considered: Stokes' second problem, steady Couette, Poiseuille, and thermal creep flow…
Master's Thesis
— 2025
This thesis presents the development of a methodology for using portable X-ray fluorescence (pXRF) measurements as inputs to supervised machine learning models for the estimation of zinc (Zn) concentrations in an underground mining environment, using a simulated dataset that mimics operational co…
PhD Thesis
Guidance, control, and opportunistic terrain-based navigation of marine vehicles
— 2025
Esta tese aborda problemas selecionados nas áreas de Orientação, Navegação e Controlo de Veículos Marítimos. Nomeadamente, i) como pode um veículo marítimo aproximar-se de um caminho desejado e mover-se ao longo dele na presença de perturbações externas desconhecidas, e ii) como pode o veículo deter…
PhD Thesis
— 2025
Esta tese pretende contribuir para a integração da metodologia de Modelação da Informação da Construção (BIM) nos procedimentos de contratação para a execução de obras. Dada a tendência global da digitalização, a importância dos contratos na execução dos projetos de construção, e a escassez de estud…
Article In: orcid
Pólya-type inequalities on spheres and hemispheres
Annals de L'Institute Fourier (Grenoble) , Volume 75 (2025) no. 3, pp. 979-1051.
Given an eigenvalue $\lambda$ of the Laplace-Beltrami operator defined on $n-$spheres or $-$hemi\-spheres, with multiplicity $m$ such that $\lambda=\lambda_{k}=\dots = \lambda_{k+m-1}$,} we characterise the lowest and highest orders in the set $\left\{k,\dots,k+m-1\right\}$ for which P\'{o}lya…
PhD Thesis
— 2025
A circularidade na construção tem sido cada vez mais aplicada, com o principal objectivo de reduzir a extracção de recursos naturais e diminuir a deposição de resíduos em aterro. No caso das argamassas e betões, isto pode traduzir-se na diminuição da utilização de agregados naturais (AN), aumentando…
Article In: scopus
Fluorinated Phosphates, BaMPO4F (M = Mn, Fe), with One-Dimensional Channels: Structure and Magnetism
Inorganic Chemistry
Master's Thesis
— 2025
Radial Basis Function - generated Finite Difference (RBF-FD) method is a powerful meshless technique for solving Partial Differential Equations (PDEs), particularly in domains with complex or dynamic geometries. By operating on scattered nodes, RBF-FD circumvents the need for mesh generation while a…
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