Universidad Politécnica de Madrid

Applications of Substrate Materials for Interdigital Transducers (IDTs): A Review

Structural health monitoring (SHM) based on ultrasonic-guided waves has been widely investigated for aerospace, transportation, marine engineering, petrochemical equipment and large-scale civil infrastructure. As the core component for guided-wave excitation and signal reception,...

Tumor-infiltrating lymphocytes differ across MammaPrint® classifications in breast cancer

Abstract MammaPrint® refines risk stratification in early oestrogen receptor-positive, HER2-negative breast cancer, evolving from a binary to a four-tier classification (UltraLow, Low, High-Risk1, High-Risk2). The relationship between routine histopathological features, immune in...

High-Resolution Mapping of Forest Vegetation Types Using Multiplatform Imagery and Advanced Classification Techniques

Accurate and up-to-date information is essential for environmental monitoring, particularly in regions characterized by complex topography and heterogeneous landscapes. This study presents a multisource remote sensing–based approach for forest vegetation classification on La Palm...

Requirements Catalogue for an Instrumented Racing Motorcycle and Its Team-Management Platform

The complete requirements catalogue maintained during the engineering programme behind a doctoral dissertation on instrumented racing motorcycles. It records 1,029 uniquely identified requirements — 849 functional and 180 non-functional — covering the on-vehicle systems (data acq...

Viral transport in evaporating sessile model respiratory droplets

Abstract Viral particles, or virions, may remain infectious in the dry residue of respiratory droplets for times as long as hours. This is counterintuitive, since salt concentration increases dramatically as the drop's water evaporates, making the drop a harsh environment for vir...

Halogen‐Acupuncture Stabilization of Pure‐Iodide Wide‐Bandgap Perovskites for Efficient and Stable Solar Cells under Simulated Low‐Earth‐Orbit Cycling

ABSTRACT Pure‐iodide wide‐bandgap (WBG) perovskites are promising top‐cell absorbers for tandem photovoltaics, benefiting from their intrinsic immunity to the halide phase segregation that plagues mixed‐halide counterparts. However, their practical deployment, particularly in spa...

Radiative and bulk photovoltaic efficiencies of devices based on two-dimensional transition metal dichalcogenide alloys

Abstract In this study the photovoltaic potential of two-dimensional Transition Metal Dichalcogenide alloys is evaluated by considering several efficiency metrics, absorber layer thicknesses, light-trapping strategies, and both radiative and bulk photovoltaic effects across diffe...

Integrating multimodal dot product fusion with conditional generative adversarial network to build a C-P-S-P chain in Mg alloys

Establishing quantitative relationships among composition, process, structure, and property (C-P-S-P) is a fundamental challenge in materials science, yet conventional models relying solely on numerical data fail to capture microstructural spatial heterogeneity, limiting predicti...

Enthalpies of formation, proton affinities, and gas-phase basicities of protonated azoles and quaternary azolium salts

Abstract The enthalpies of formation of five families of azoles, parent, protonated parent, neutral N -methyl azoles, protonated N -methyl azoles, and N,N -dimethyl quaternary salts from pyrazole to benzotriazole, in all, 82 compounds, have been studied theoretically and compared...

Thermal Performance of Ceramic Building Materials: The Influence of Clay Matrix and Organic and Inorganic Waste—A Review

This review evaluates how clay mineralogy, waste composition, and processing conditions govern the thermal, physical, and mechanical performance of fired clay ceramics containing organic and inorganic residues. Following PRISMA 2020, 125 original studies published between 2000 an...

The Andorra Scenario Engine: A Data-Grounded Framework for Policy-Oriented National Development Planning

Planning long-term national development under uncertainty is difficult for small states, where indicators are fragmented, frequently revised, and span tightly coupled social, economic, and environmental domains. Scenario tools can support such decisions without committing to a si...

Modelling the degradation of externally bonded post-tensioning tendons including bond-slip behaviour

In recent years, brittle fractures of externally bonded post-tensioning tendons have been observed in bridges worldwide, compromising structural safety and durability. Consequently, concern has increased about the mechanical behaviour of these elements when strand or wire breakag...

Development of Sustainable Gypsum Composites Incorporating Silica Fume Waste and Fiber Reinforcement for Construction Applications

This study evaluates the feasibility of developing sustainable gypsum composites incorporating silica fume waste and fiber reinforcement for construction applications. The experimental program was divided into two phases. First, silica fume was incorporated into the gypsum matrix...

Seismic behaviour of aggregated reinforced masonry dwellings considering the combined influence of diaphragm stiffness and height irregularity

Abstract Aggregate dwellings are a common construction configuration in urban environments in the Americas, where space constraints favour terraced construction. However, seismic interaction between adjacent dwellings can significantly alter their structural response, especially...

Sensor System Design and Deployment for Environmental and Visitor Monitoring in Cultural Heritage Sites

In this paper the design, development, and validation of a set of low-power low-cost sensor systems intended for environmental monitoring and visitor tracking in cultural heritage sites are shown. These systems have been deployed in five pilot cases in four different countries in...

Transforming viticulture through genomic innovation and integrated pest management for sustainable grape production

Abstract Climate change and intensifying disease pressure push viticulture beyond incremental adaptation, especially where grape production depends on repeated pesticide applications. Reducing chemical inputs requires an integrated strategy combining broader genetic diversity, co...

Performance Assessment of Gypsum-Based Composites with Coconut Fibers: Durability, Circularity, and Environmental Impact Assessment

Gypsum-based composites are widely used in construction for their rapid setting and fire resistance; however, their low mechanical strength and limited durability in humid conditions restrict their use in highly humid indoor environments. In this study, gypsum-based composites we...

Detailed study of non-equilibrium characteristics of quasi-neutral TNSA plasmas

In an experiment performed in November 2022 at the petawatt (PW) laser facility at Vega III located in Salamanca-Spain, we have studied the successful production of several radioisotopes using protons accelerated by the Target Normal Sheath Acceleration (TNSA) mechanism (Rodrigue...

Making residential energy retrofits work: How local intermediaries connect municipal policy and household-level action to advance the energy transition in Madrid

Municipalities play a central role in driving urban sustainability transitions but often struggle to engage critical actors necessary for implementing local climate policy objectives. These challenges are especially visible in the slow uptake of household energy retrofit policies...

Comparative laboratory analysis of window sound insulation across glazing types in the 50–5000 Hz range: evaluation of different low-frequency methods

This study investigates the sound insulation performance of windows by presenting laboratory measurements from 50 to 5000 Hz on two window types, with and without an integrated shutter box, each tested across five glazing configurations. While all measurements were conducted unde...