E-prints: Recent submissions
Now showing items 21-40 of 72263
Echoes through time: EcoPorts: past, present and future
Postprint (published version)
Bubble control in cryogenic fluids by means of an acoustic technique
Cryogenic propellants are used for space exploration missions thanks to their high energy density. However, their storage in orbit is a challenge due to localised evaporation as a result of heat fluxes in the tank. Using ...
Análisis experimental de la influencia del ángulo de torsión de los álabes de turbinas hidrocinéticas Darrieus helicoidales
Las turbinas hidrocinéticas se presentan como una alternativa futura para la obtención de energía de las corrientes de agua de manera sostenible. El aumento de eficiencia de dichas turbinas desde distintas aproximaciones ...
A flexibility management system for providing close-to-real-time power services: an experimental case study in PVZEN microgrid lab
This paper presents a novel flexibility management system to handle short-term power deviations generated by intrinsic variability in generation and demand, and behind-the-meter flexibility provision in a close-to-real-time ...
Universality of entanglement in gluon dynamics
Entanglement of fundamental degrees of freedom in particle physics is generated ab initio in scattering processes. We find that in the case of a pure SU(N) gauge theory, two gluons in a product state can become maximally ...
Evaluation of a vertical axis hydrokinetic turbine for water channels
The growing interest on low-carbon energy systems has been essential to develop new electricity devices based on renewable resources. In this context, channel turbines are an excellent alternative to supply demands that ...
Gold-polymer hybrid metasurface for polarization-independent enhanced third harmonic generation in the ultraviolet
We present a combined experimental and theoretical study of nonlinear light-matter interactions in a three-dimensional gold-polymer hybrid metasurface. In contrast to conventional two-dimensional designs, which by symmetry ...
Inventarios municipales de GEI: una base para la acción climática en Cataluña. Primera parte: Sector Transporte y Residuos
El cambio climático representa uno de los principales desafíos globales, pero afrontarlo requiere acciones efectivas adaptadas a las necesidades y capacidades de cada territorio. Los gobiernos locales son actores clave ...
Diseño de una metodología para cálculo de energía hidrocinética en estuarios: ejemplo de aplicación con el software IBER
En el contexto actual de una creciente demanda energética, la energía hidrocinética provocada por la interacción de mareas y caudales de agua en estuarios de los ríos es una de las fuentes con mayor potencial por explotar. ...
Supersurfaces for grasping, scene generation and contact modeling
In this work we study the use of superquadrics and superquartics for grasping and contact detection. We include an overview of the different formulations that have been derived from the superquadrics, and we group all these ...
Simulation of the burning and dripping cables in fire using the particle finite element method
The behavior of the cable jacket in fire characterized by the tendency to melt and drip constitutes a major source of fire hazard. The reason is that the melted material may convey the flame from one point to another, ...
Linking the pressure dependence of the structure and thermal stability to a- and ß-relaxations in metallic glasses
Glasses derive their functional properties from complex relaxation dynamics that remain enigmatic under extreme conditions. Although the temperature dependence of these relaxation processes is well established, their ...
Minimalist and nanoparticle-free selenium-based photocathodes for record performance solar-driven hydrogen evolution
This work reports the highest photoelectrochemical (PEC) performance for selenium (Se)-based photocathodes, achieved through a simple, sustainable, and nanoparticle-free design. A half-cell solar-to-hydrogen (HC-STH) ...
Análisis de la matriz interconexión en un convertidor multifase con control en modo deslizante
En este artículo se presenta un convertidor buck síncrono multifase controlado por un control en modo deslizante (Sliding Mode Control, SMC). Las funciones de conmutación propuestas se componen de un lazo de tensi´ on, que ...
Enhanced selective recovery of rare earth elements from treated acidic mine water as oxalates: experimental optimization on the crystallization stage
Treatment of acid mine water (AMW) from mining activities is an environmental challenge due to the large volumes generated. At the same time, rare earth elements (REEs), classified as Critical Raw Materials by the European ...
Assessing flood hazards and evacuation safety in metro stations: insights from Paral·lel station (Barcelona)
The increasing frequency of extreme rainfall events due to climate change has heightened flood risks in underground transport systems. Metro stations, particularly concourses and staircases, are highly vulnerable, posing ...
Self-assembled charge-complementary hydrogel with sustained release of antimicrobial peptides for periodontitis treatment
Periodontitis is a pathogenic microbial-infected disease where immune dysregulation promotes chronic inflammation and excessive osteoclast activity, causing progressive tissue destruction. Current therapeutic approaches ...
The effect of silk fibroin additive on the properties of tannic acid-based bioadhesives
Hydrogel adhesives have attracted significant attention for diverse biomedical applications, including tissue engineering, wound dressings, crack propagation prevention, and hemorrhage control. In this study, a tissue ...
Gas migration in low-permeability clay-based barriers
Gas migration in low-permeability materials has become a critical focus in energy and environmental geotechnics, particularly for managing the deep geological disposal of radioactive waste. Such waste can release radionuclides ...
How and why false denial constraints are discovered
Denial Constraints (DCs) are a flexible formalism to express many types of data rules, making them a widely adopted tool for many applications. This flexibility led to the development of numerous algorithms to automatically ...
