Most of our work has resulted in scholarly publications. On this page you can review our publications to get an idea about our work.
Experimental Evaluation Data for Smart-Contract-Based Distributed Building Control
September, 2026 • Dataset
Mendes, Guilherme Gregório
This dataset contains the experimental data and supporting scripts used in the evaluation of the MSc dissertation “Design and Experimental Evaluation of Smart-Contract-Based Distributed Building…
This dataset contains the experimental data and supporting scripts used in the evaluation of the MSc dissertation “Design and Experimental Evaluation of Smart-Contract-Based Distributed Building Control on Resource-Constrained Edge Platforms”.
The evaluated prototype integrates openHAB, a Python-based IoT Bridge, local Algorand TestNet nodes, and smart contracts deployed across two Raspberry Pi-based building environments.
The archive contains data supporting the evaluation of end-to-end operation latency, platform resource usage, blockchain-node recovery after a 30-minute outage, blockchain-related transaction and minimum-balance costs, and observed Algorand block intervals. Supporting collection and analysis scripts are also included.
A README file documents the directory structure, experimental context, data-processing considerations, and the relationship between the included files and the results reported in the dissertation.
This repository contains the complete RDF Turtle (.ttl) dump and tabular decompositions of the Blandino Research Knowledge Graph (BR-KG). Validated using W3C-compliant Turtle parsing, the data…
This repository contains the complete RDF Turtle (.ttl) dump and tabular decompositions of the Blandino Research Knowledge Graph (BR-KG). Validated using W3C-compliant Turtle parsing, the dataset formalizes a unified semantic web architecture bridging theoretical mathematical physics, algebraic quantum field theory (AQFT), Loop Quantum Gravity (LQG), non-commutative geometry, and finite incidence geometries. Fully integrated with external registries, the graph links primary research nodes directly to open-access Zenodo DOI datasets and open-source computational pipelines. Key formalized domains and interlinked resources include:
First-Principles Derivation of $\alpha$: Core structural relations linking Polyakov string oscillations on $R=\pi$, discrete octave coupling on the Fano plane $PG(2,2)$, and Matrix Product States (MPS) on virtual spaces $D=45$ saturated by $\mathfrak{so}(10)$ symmetries.
Spectral Invariants & Moduli Spaces: Formalization of the moduli space of Mori–Mukai ID-69 Fano 3-folds, Dyson–Schwinger field kernels, Picard–Fuchs differential operators, and continued fraction complements $K$.
Immersive Bridges & Spacetime Emergence: The Jordan–Clifford immersion ($h_3(\mathbb{O})_{\mathbb{C}}$ to $\mathcal{C}\ell(14)$ via $\mathrm{Spin}(7)$ reduction), resolution of the Lorentzian signature problem in Noncommutative Geometry via $\mathcal{C}\ell(3,1)$ embeddings, and FLRW spacetime emergence from Feynman graphons under cut-norm limits.
Dynamical Flows & Open Science Code Suites: Coupled GENERIC refinement flows for time emergence in Loop Quantum Gravity, stochastic dissipative collapse models addressing the Quantum Measurement Problem, and reproducible Python verification suites hosted across GitHub and Google Colab.
Accompanied by structured CSV exports covering decompressed triples, unique subject nodes, and predicate frequencies, this dataset serves as a FAIR-compliant semantic backbone for automated reasoning, SPARQL querying, and graph-based indexing of advanced mathematical physics literature.
Lightning remains a significant risk for CFRP (Carbon Fiber Reinforced Plastics) aircraft structures, affecting both operational safety and manufacturing costs. Preventing internal discharges during l…
Lightning remains a significant risk for CFRP (Carbon Fiber Reinforced Plastics) aircraft structures, affecting both operational safety and manufacturing costs. Preventing internal discharges during lightning strikes is a key challenge, as such discharges can lead to fuel ignition and damage to aircraft systems. Therefore, the presence of internal discharges is carefully inspected during lightning testing. However, a phenomenon known as "edge glow," in which a faint glow appears at the edge of a CFRP panel, can complicate the assessment of discharge hazards. The mechanism responsible for edge glow has not yet been fully understood. In this study, a microscale investigation of edge glow emission was conducted to elucidate its underlying mechanism. CFRP laminates were subjected to current injection tests using the SAE ARP 5412 current waveform, and the location and morphology of edge damage associated with edge glow were evaluated. The evolution of the edge glow morphology was captured using a high-speed camera, while damage to the CFRP layers before and after current injection was examined using optical microscopy. Furthermore, edge-element specimens were fabricated for experimental validation, and the relationship between the applied voltage and the light emission was investigated. Observation of edge glow revealed characteristic localized structural damage within the ±45° fiber layers on the cathode side, whereas extensive surface degradation was observed on the anode side. These findings suggest that “Electrical Sparks” is the primary mechanism responsible for the initiation of edge glow.
Lightning Direct EffectLightning TestEdge GlowSpectroscopy
Mechanical plastic deformation of metallic panels is sometimes observed when thin panels are subjected to a lightning strike, with extreme cases resulting in puncture, as reported by NIAR. The stresse…
Mechanical plastic deformation of metallic panels is sometimes observed when thin panels are subjected to a lightning strike, with extreme cases resulting in puncture, as reported by NIAR. The stresses induced by the electric arc on the panel are sufficient to mechanically tear the material, producing a larger hole in the structure compared to the size observed with only melting effects on thicker panels. NIAR observed this behaviour on thin metallic plates subjected to a current component A. With the increase in flight traffic in the coming decades, extreme lightning strikes will occur more frequently, and the probability of such tearing may increase. Moreover, a model is under development at ONERA based on the use of a multiphase Eulerian MHD solver (APE3X), in which phase change physics and solid mechanics have been incorporated, and experimental validation is needed. Puncturing CFRP panels is one of the main objectives of this model, but it is a significant step; therefore, starting with metal panels is preferred. For these two reasons – increased risk probability and the need for model validation – we investigated aluminum and titanium panels covered by a dielectric layer simulating paint. These were tested against a current component A following SAE recommendations. The current is injected using a new ONERA generator, and high-speed imaging and deflection measurements are performed. Several dielectric and panel thicknesses are tested to acquire imaging data and determine a threshold for the transition between mainly thermal damage and the tearing phenomenon observed in thin panels.
Validation of lightning attachment models under field conditions is fundamentally constrained by the fact that only a fraction of actual lightning strikes to transmission lines are detected and record…
Validation of lightning attachment models under field conditions is fundamentally constrained by the fact that only a fraction of actual lightning strikes to transmission lines are detected and recorded – typically only those causing operational faults. This observational incompleteness introduces systematic bias into conventional performance metrics such as sensitivity and specificity. In this study, we apply the Sima-Rakov Leader Progression Model (LPM) to a large-scale dataset comprising 54 high-voltage transmission lines operated in the Czech Republic, spanning diverse topographical conditions and tower configurations. Using 15 years of EUCLID lightning location system data and corresponding confirmed fault records, we evaluate LPM prediction performance across networks and examine how model accuracy metrics vary under different assumptions about the true detection probability of lightning attachments. We complement this analysis with a quantification of how measurement uncertainties inherent to the EUCLID system – particularly stroke location error and peak current estimation – affect LPM output through the model’s physically-based calculations. The multi-network scope of this study enables, for the first time, a network-scale statistical assessment of LPM reliability that accounts for both input data uncertainty and incomplete observational ground truth.
Simulation-Based Optimization of Material Use and Personnel Safety in LPS Design
September, 2026 • Conference paper
Shulzhenko, Eduard, Costa, Kamila, Rock, Michael
External lightning protection systems (LPS) are commonly dimensioned according to standard-based rules that ensure robust protection, but do not quantify the trade-offs between interception, personnel…
External lightning protection systems (LPS) are commonly dimensioned according to standard-based rules that ensure robust protection, but do not quantify the trade-offs between interception, personnel safety, magnetic-field penetration, grounding performance, and material demand. This paper presents a consistent 3D simulation workflow for initial evaluating these aspects. A total of 720 mesh-cage configurations are investigated for three buildings of increasing size, covering lightning protection levels (LPLs) I–IV, one to three ring earth electrodes, five specific soil resistivities, and four frequencies representing different lightning current rise times. In addition, 60 single air-termination rod configurations (hereafter denoted as single-rod configurations) at LPL II, generated using a rolling-sphere algorithm and verified by a numerical protection envelope, are analyzed for comparison. The assessed quantities include grounding impedance, prospective touch and step voltages, magnetic-field penetration, conductor length, normalized material intensity, and a first-order estimate of embodied CO2. Normalized material demand decreases with building size and from LPL I to LPL IV, while additional ring electrodes reduce grounding impedance with diminishing returns. For the same earth-termination system (ETS), the single-rod concept requires approximately 30–40% less conductor than the mesh cage while providing equivalent rolling-sphere interception and comparable grounding performance. Prospective touch and step voltages are comparable for both concepts and are governed mainly by specific soil resistivity and building size. The single-rod concept generally produces higher magnetic-field magnitudes along the investigated injection-to-center path than the mesh cage, particularly at higher frequencies. These results indicate a trade-off between material reduction and magnetic-field penetration, while the implications for the EMC of installed equipment require further investigation.
User Manual for MOLE: Mimetic Operators Library Enhanced, a high-order mimetic differential operators library for solving partial differential equations (PDEs).
There is an increasing interest in upgrading the EModel, a parametric tool for speech quality estimation, to the wideband and super-wideband contexts. The
Contemporary models of Unmanned Aerial Vehicles (UAVs) are largely developed using simulators. In a typical scheme, a flight simulator is dovetailed with a
Undertaking engineering research can be compounding for beginning graduate students and thwarting even for seasoned researchers. With a wealth of academic
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