Results 1 to 10 of about 33,673 (195)

Development and Characterization of a Low-Cost Sensors System for an Acoustic Test Bench [PDF]

open access: yesSensors, 2020
Existing acoustic test benches are usually costly devices based on proprietary designs, sensors, and acquisition devices. In this paper, a low-cost test bench for acoustic purposes is introduced.
Ciro Moreno-Ramírez   +3 more
doaj   +2 more sources

The Acquisition Rate and Soundness of a Low-Cost Data Acquisition System (LC-DAQ) for High Frequency Applications [PDF]

open access: yesSensors, 2020
This article presents a novel and reliable low-cost data acquisition solution for high frequency and real-time applications in vehicular dynamics. Data acquisition systems for highly dynamic systems based on low-cost platforms face different challenges ...
Ciro Moreno   +3 more
doaj   +2 more sources

A Window onto the Eocene (Cenozoic): The Palaeontological Record of the Sobrarbe-Pirineos UNESCO Global Geopark (Huesca, Aragon, Spain) [PDF]

open access: yesGeoconservation Research, 2021
The Sobrarbe-Pirineos UNESCO Global Geopark, located in the Central Pyrenees, is a region of remarkable geodiversity that includes extensive Eocene fossil-bearing sites and constitutes an important archive of paleobiodiversity.
Jose Canudo   +11 more
doaj   +1 more source

A new radiation-hardened architecture for holographic memory address calculation

open access: yesAlexandria Engineering Journal, 2022
Architectures for the memory address calculation unit of a holographic memory device have been deeply analyzed in the literature. Finite-precision analysis and the selection of parameters to ensure a discrepancy between the hologram plane and the ...
Francisco Garcia-Herrero   +3 more
doaj   +1 more source

New method to analyse and optimise thermoacoustic power generators for the recovery of residual energy

open access: yesAlexandria Engineering Journal, 2020
The analysis of thermoacoustic engines and the equations that describe the internal physical phenomena are far from simple. Previous studies on energetic characterisation of thermoacoustic engines are based only on the determination of the active ...
Carmen Iniesta   +3 more
doaj   +1 more source

Seguimiento de anfibios en espacios protegidos del País Vasco y Navarra. II. Parque Natural de las sierras de Urbasa y Andía y Zonas Especiales de Conservación de la sierra de Aralar y Roncesvalles-Selva de Irati (Navarra). [PDF]

open access: yesMunibe Ciencias Naturales, 2019
Dentro de un programa de censo poblacional de anfibios en espacios protegidos del País Vasco y Navarra se ha abordado la cuantificación de sus individuos en años comprendidos entre 2004 y 2018 en el Parque Natural de las sierras de Urbasa y Andía (ocho ...
Alberto Gosá,   +5 more
doaj   +1 more source

Energy and Efficiency Evaluation of Feedback Branch Design in Thermoacoustic Stirling-Like Engines

open access: yesEnergies, 2019
Stirling-like thermoacoustic generators are external combustion engines that provide useful acoustic power in the absence of moving parts with high reliability and respect for the environment.
Carmen Iniesta   +3 more
doaj   +1 more source

Detailed Study on the Behavior of Improved Beam T-Junctions Modeling for the Characterization of Tubular Structures, Based on Artificial Neural Networks Trained with Finite Element Models

open access: yesMathematics, 2021
The actual behavior of welded T-junctions in tubular structures depends strongly on the topology of the junction at the joint level. In finite element analysis, beam-type elements are usually employed due to their simplicity and low computational cost ...
Francisco Badea   +2 more
doaj   +1 more source

El marcado de ganado ovino roncalés: análisis de un discurso etnológico e ideográfico [PDF]

open access: yesMunibe Antropologia-Arkeologia, 2021
Este estudio analiza el mensaje etnocultural trasmitido a través de los diferentes sistemas de marcaje que son empleados en las cabañas ganaderas del Valle de Roncal.
Pablo M. Orduna Portús   +1 more
doaj   +1 more source

Los sistemas geotermales del Pirineo Central. II. Resultados de la aplicación de técnicas geotermométricas

open access: yesEstudios Geologicos, 1997
Mediante la utilización de distintas técnicas geotermométricas se han estimado las temperaturas en el reservorio de seis sistemas geotermales (Arties, Caldas de Bohí, Benasque, Panticosa, Luchon y Cauterets) instalados en los materiales graníticos del ...
L. F. Auqué   +3 more
doaj   +1 more source

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