Examinar por departamento (cas.) "Física"
Now showing items 1-20 of 185
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3D Topological Photonic Crystals: Theoretical Methods and Applications
(2023-12-13)The concept of topology has revolutionized our understanding of condensed matter physics, leading to the discovery of novel electronic phases and the emergence of topological materials. In recent years, this concept has ... -
A comprehensive review of C-S-H empirical and computational models, their applications, and practical aspects
(Elsevier, 2022-06)[EN] The C-S-H gel is an elusive material. Its variable composition and disordered nature complicate a complete characterization of its atomic structure, and the elaboration of models is key to understanding it. This work ... -
A Dissolution Model of Alite Coupling Surface Topography and Ions Transport under Different Hydrodynamics Conditions at Microscale
(Elsevier, 2021-04)Portland cement is the most produced material in the world. The hydration process of cement consists of a group of complex chemical reactions. In order to investigate the mechanism of cement hydration, it is vital to study ... -
A Lamellar Zn-Based Coordination Polymer Showing Increasing Photoluminescence upon Dehydration
(MDPI, 2023-07-25)The present study reports on a 2D lamellar coordination polymer (CP) of {[Zn(µ3-pmdc)(H2O)]·H2O}n formula (pmdc = pyrimidine-4,6-dicarboxylate). This CP is synthesized under an appropriate acid-base reaction between the ... -
A Luminescent MOF Based on Pyrimidine-4,6-dicarboxylate Ligand and Lead(II) with Unprecedented Topology
(MDPI, 2023-10-13)In the present work, we report on a 3D MOF of {[Pb5(μ3-OH)(μ3-NO3)3(μ6-pmdc)3]·H2O}n formula (pmdc = pyrimidine-4,6-dicarboxylate) synthesized by an oven-heated, solvent-free procedure. The large connectivity afforded by ... -
A Milestone in the Chemical Synthesis of Fe3O4 Nanoparticles: Unreported Bulklike Properties Lead to a Remarkable Magnetic Hyperthermia
(ACS, 2021-11-10)Among iron oxide phases, magnetite (Fe3O4) is often the preferred one for nanotechnological and biomedical applications because of its high saturation magnetization and low toxicity. Although there are several synthetic ... -
A potential C-S-H nucleation mechanism: atomistic simulations of the portlandite to C-S-H transformation
(Elsevier, 2022-12)The nucleation of the C-S-H gel is a complex process, key to controlling the hydration kinetics and microstructure development of cement. In this paper, a mechanism for the crystallization step during the C-S-H gel ... -
A probabilistic model and capturing device for remote simultaneous estimation of spectral emissivity and temperature of hot emissive materials
(Institute of Electrical and Electronics Engineers, 2021-07-12)[EN] Estimating the temperature of hot emissive samples (e.g. liquid slag) in the context of harsh industrial environments such as steelmaking plants is a crucial yet challenging task, which is typically addressed by ... -
A study of the charge storage mechanism in iron rich transition metal layered oxides for sodium-ion batteries: structural evolution, reaction kinetics and high voltage stability
(2021-07-19)Las baterías de sodio ión están consideradas como una de las tecnologías más prometedoras como alternativa a las de litio ión usadas comúnmente a día de hoy. Especialmente, los óxidos laminares son uno de los candidatos ... -
Additive Manufacturing of Fe-Mn-Si-Based Shape Memory Alloys: State of the Art, Challenges and Opportunities
(MDPI, 2023-12-05)Additive manufacturing (AM) constitutes the new paradigm in materials processing and its use on metals and alloys opens new unforeseen possibilities, but is facing several challenges regarding the design of the microstructure, ... -
Aleaciones con Memoria de Forma de Cu-Al-Ni-Be para muy bajas temperaturas: Síntesis y caracterización microestructural, térmica y mecánica
(2021-10-22)Las aleaciones con memoria de forma (SMA: Shape Memory Alloys) presentan unatransformación martensítica termoelástica que les confiere las propiedades de Memoria deForma (MF) y efecto superelástico (ES). Esta transformación ... -
An effective model for the quantum Schwarzschild black hole
(Elsevier, 2022-06-10)We present an effective theory to describe the quantization of spherically symmetric vacuum motivated by loop quantum gravity. We include anomaly-free holonomy corrections through a canonical transformation and a linear ... -
An Epilepsy-Causing Mutation Leads to Co-Translational Misfolding of the Kv7.2 Channel
(Springer, 2021-05-21)BACKGROUND: The amino acid sequence of proteins generally carries all the necessary information for acquisition of native conformations, but the vectorial nature of translation can additionally determine the folding outcome. ... -
An improved search for the electric dipole moment of the τ lepton
(Springer, 2022-04-20)We report a measurement of the electric dipole moment of the tau lepton (d(tau)) using an 833 fb(-1) data sample collected near the Upsilon(4S) resonance, with the Belle detector at the KEKB asymmetric-energy e(+)e(-) ... -
Análisis estadístico y predicción de viento
(2021-06-01)El objetivo principal de esta tesis es el análisis estadístico del viento en diferentes ámbitos relacionados, como son dos escalas temporales, extremos y una metodología de evaluación bidimensional.El primero es la predicción ... -
Applications of laser-spot thermography to thermal diffusivity and crack measurements on static and moving samples
(2021-07-15)Esta tesis tiene como objetivo explorar la termografía infrarroja con excitación óptica focalizada para estudiar la difusividad térmica en el plano y para la caracterización de grietas. Por un lado, se investiga la difusividad ... -
Approach to scaling in axion string networks
(APS, 2021-05-26)We study the approach to scaling in axion string networks in the radiation era, through measuring the root-mean-square velocity v as well as the scaled mean string separation x. We find good evidence for a fixed point in ... -
Asymptotic structure of space-time and gravitational radiation in the presence of a non-negative cosmological constant
(2021-07-12)En la tesis se estudia la radiación gravitatoria y la estructura del infinito desde un punto de vista geométrico, dentro del contexto de la Relatividad General de Einstein. En particular, se emplean compactificaciones ... -
Atomistic simulation on the nucleation of C-S-H.
(2023-05-12)En este trabajo, hemos utilizado métodos computacionales para estudiar las primeras etapas de la nucleación del C-S-H a escala atómica. El cemento es el material de construcción más utilizado en el mundo, y el gel C-S-H ... -
Beyond the infrared: a centenary of Heinrich Rubens's death
(Springer, 2022)Heinrich Rubens (Wiesbaden, 1865, Berlin, 1922) was the first scientist to study the large gap between the conventional infrared range and the electrical wave regime, better known today as the terahertz gap. To this end, ...