BackExaminar INVESTIGACIÓN por departamento (eus.) "Fisika aplikatua I"
Now showing items 21-40 of 261
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An Optical Fiber Bundle Sensor for Tip Clearance and Tip Timing Measurements in a Turbine Rig
; ; ; Aldabaldetreku Etxeberria, Gotzon
; Illarramendi Leturia, María Asunción ; (MDPI, 2013-06)
When it comes to measuring blade-tip clearance or blade-tip timing in turbines, reflective intensity-modulated optical fiber sensors overcome several traditional limitations of capacitive, inductive or discharging probe ... -
Analysis of atmospheric thermodynamics using the R package aiRthermo
Sáenz Aguirre, Jon; ; ; (Elsevier, 2018-10-23)
The publicly available R package aiRthermo is presented in this study, which allows the user to process information relative to atmospheric thermodynamics, ranging from calculating the density of dry or moist air and ... -
Análisis de las propiedades térmicas de materiales semitrasparentes y caracterización de grietas verticales en sólidos opacos mediante termografía infrarroja
(2016-09-06)Este trabajo de tesis doctoral ha sido dividido en dos partes. La parte I, trata sobre el uso de la termografía infrarroja pulsada en la llamada configuración frontal para el estudio de las propiedades de transporte térmico ... -
Anharmonicity Reveals the Tunability of the Charge Density Wave Orders in Monolayer VSe2
; ; ; ; Errea Lope, Ion (American Chemical Society, 2023-02)
VSe2 is a layered compound that has attracted great attention due to its proximity to a ferromagnetic state that is quenched by its charge density wave (CDW) phase. In the monolayer limit, unrelated experiments have reported ... -
Anomalous High‐Temperature Superconductivity in YH6
Troyan, Ivan A.; Semenok, Dmitrii V.; Kvashnin, Alexander G.; Sadakov, Andrey V.; Sobolevskiy, Oleg A.; Pudalov, Vladimir M.; Ivanova, Anna G.; Prakapenka, Vitali B.; Greenberg, Eran; Gavriliuk, Alexander G.; Lyubutin, Igor S.; Struzhkin, Viktor V.; Bergara Jauregui, Aitor; Errea Lope, Ion; Bianco, Raffaello; Calandra, Matteo; Mauri, Francesco; Monacelli, Lorenzo; Akashi, Ryosuke; Oganov, Artem R. (Wiley-VCH GmbH, 2021-03-10)
Pressure‐stabilized hydrides are a new rapidly growing class of high‐temperature superconductors, which is believed to be described within the conventional phonon‐mediated mechanism of coupling. Here, the synthesis of one ... -
Aplicaciones con termografía infrarroja: caracterización de grietas verticales y medida de la difusividad térmica.
(2020-12-02)En este trabajo se presenta el uso de la termografía infrarroja para desarrollo de ensayos no destructivos enfocados a la detección y caracterización de grietas y la medida de la difusividad térmica de materiales en ... -
Assessing the feasibility of near-ambient conditions superconductivity in the Lu-N- H system
; Dangic, Dorde; Errea Lope, Ion (Springer Nature, 2024-04-24)
The report of near-ambient superconductivity in nitrogen-doped lutetium hydrides (Lu-N-H) has generated a great interest. However, conflicting results raised doubts regarding superconductivity. Here, we combine high-throughput ... -
Atomically-Precise Texturing of Hexagonal Boron Nitride Nanostripes
Ali, Khadiza; Fernández, Laura; Kherelden, Mohammad A.; Makarova, Anna A.; Píš, Igor; Bondino, Federica; Lawrence, James; G. de Oteyza, Dimas; Usachov, Dmitry Yu; Vyalikh, Denis V.; García de Abajo, F. Javier; Abd El-Fattah, Zakaria M.; Ortega Conejero, José Enrique; Schiller, Frederik (Wiley, 2021-09)
Monolayer hexagonal boron nitride (hBN) is attracting considerable attention because of its potential applications in areas such as nano- and opto-electronics, quantum optics and nanomagnetism. However, the implementation ... -
Band Structure and Energy Level Alignment of Chiral Graphene Nanoribbons on Silver Surfaces
Corso, Martina; Menchón, Rodrigo E.; Piquero Zulaica, Ignacio; Vilas Varela, Manuel; Ortega Conejero, José Enrique; Peña, Diego; De Oteyza, Dimas G. (MDPI, 2021-12-06)
Chiral graphene nanoribbons are extremely interesting structures due to their narrow band gaps and potential development of spin-polarized edge states. Here, we study their band structure on low work function silver surfaces. ... -
Bending rigidity, sound propagation and ripples in flat graphene
; ; ; ; ; ; ; ; ; Errea Lope, Ion (Springer Nature, 2024-05-16)
Many of the applications of graphene rely on its uneven stiffness and high thermal conductivity, but the mechanical properties of graphene—and, in general, of all two-dimensional materials—are still not fully understood. ... -
Black metal hydrogen above 360 GPa driven by proton quantum fluctuations
Monacelli, Lorenzo; Errea Lope, Ion; Calandra, Matteo; Mauri, Francesco (Nature Physics, 2020-09-07)
Hydrogen metallization under stable conditions is a major quest for realizing the first room temperature su- perconductor. Recent low-temperature experiments report different metallization pressures, varying from 360GPa ... -
Calibration of the X-ray Diffraction Technique in Measuring In-service Stresses in Corrugated Steel Bars
; Luengas Carreño, Daniel; (Springer, 2021-10-25)
[EN]The X-ray diffraction technique for determining residual stresses in construction steels has been commonly used in the international scientific community for decades. Taking advantage of the concepts on which the ... -
Cellular patterns and dry convection in textured dust storms at the edge of Mars North Polar Cap
Sánchez Lavega, Agustín María; ; ; ; ; Ordoñez Etxeberria, Iñaki ; ; ; ; ; ; (Elsevier, 2022-11)
We present a study of textured local dust storms that develop at the northern polar cap boundary on Mars springtime. We have used images obtained with VMC and HRSC cameras onboard Mars Express and MARCI on MRO to analyze ... -
Characterisation of deposited dust particles on Mars insight lander Instrument Context Camera (ICC) lens
; Pérez Hoyos, Santiago; Sánchez Lavega, Agustín María ; (Elsevier, 2023-03)
The ubiquitous dust in the Martian environment plays a key role in its weather and climate: it must be taken into account in the interpretation of remote sensing data and observations, and could pose a potential risk to ... -
Characterization of Chromatic Dispersion and Refractive Index of Polymer Optical Fibers
Ayesta Ereño, Igor; ; Arrue Aramburu, Juan Antonio ; Illarramendi Leturia, María Asunción ; Azkune Ulla, Mikel (MDPI, 2017-12-20)
The chromatic dispersion and the refractive index of poly(methyl methacrylate) polymer optical fibers (POFs) have been characterized in this work by using a tunable femtosecond laser and a Streak Camera. The characterization ... -
Characterization of hydrogen based superconductors from first principles
(2022-12-16)En esta tesis, primero se realiza una investigación de las propiedades químicas, estructurales y electrónicas de un gran conjunto de superconductores binarios basados en hidrógeno, a través de métodos ab initio basados en ... -
Characterization of vertical cracks using lock-in vibrothermography
(2017-09-22)Esta tesis se centra en la aplicación de la vibrotermografía lock-in para la detección y caracterización dedefectos verticales sumergidos. En esta técnica, la pieza se excita mediante ultrasonidos, que generancalor en los ... -
Characterizing Subsurface Rectangular Tilted Heat Sources Using Inductive Thermography
Mendioroz Astigarraga, María Aránzazu; ; ; ; ; Salazar Hernández, Agustín (MDPI, 2020-08-06)
In this study, we characterize the lateral dimension, depth, and inclination of buried tilted rectangular heat sources from time domain temperature data measured at the surface. The heat sources are representative for ... -
Characterizing the shape and heat production of open vertical cracks in burst vibrothermography experiments
Mendioroz Astigarraga, María Aránzazu; ; ; Salazar Hernández, Agustín (Elsevier, 2019)
We present a quantitative characterization of the heat flux distribution generated at open vertical cracks in burstvibrothermography experiments. We use a stabilized inversion algorithm that is able to retrieve both ... -
Charge and spin state of dilute Fe in NaCl and LiF
Unzueta Solozabal, Iraultza; (American Physical Society, 2022-11)
There is an apparent mismatch between electron paramagnetic resonance and Mössbauer spectroscopy results on the charge and spin states of dilute Fe impurities in NaCl; Mössbauer spectroscopy data have been interpreted in ...