[EN] In this paper, the study of frequency-dependent ultrasonic attenuation in strongly heterogeneous cementitious materials is addressed. To accurately determine the attenuation over a wide frequency range, it is necessary ...
Vázquez, S.; Gosálbez Castillo, Jorge; Wright, W. M. D.; Gallardo, C.; Bosch Roig, Ignacio; CARRIÓN GARCÍA, ALICIA(Acoustical Society of America, 2019-09-06)
Air-coupled non-destructive testing has become very valuable because eliminates the use of liquid couplants and enables a contactless fast inspection of structures. Multimodal leaky Lamb waves can be excited and sensed ...
Gosálbez Castillo, Jorge; CARRIÓN GARCÍA, ALICIA; Gallardo, C.; Vázquez, S.; Genovés, V.; Paya Bernabeu, Jorge Juan(Acoustical Society of America, 2019-09-06)
[EN] The scope of this paper is to demonstrate the capability of airborne non-contact ultrasound
(ANC-US) to assess thermal damage on normalized Portland cement mortar specimens. For
this purpose, contact ultrasound (C-US) ...
[EN] Anthropogenic impulsive sound sources with high intensity are a threat to marine life and it is crucial to keep them under control to preserve the biodiversity of marine ecosystems. Underwater explosions are one of ...
Miralles Ricós, Ramón; Lara Martínez, Guillermo-Fernán; Carrión García, Alicia; Esteban, Jose Antonio(Science and Engineering Publishing Company, 2013-05)
[EN] In this work, an algorithm has been proposed for real time detection and classification of beluga whale calls. The detection algorithm is based on an adaptive activity detector that exploits a priori knowledge of the ...
Lloret Gaona, Álvaro(Universitat Politècnica de València, 2022-01-12)
[ES] Actualmente existe una gran variedad de materiales para implantes odontológicos debido al avance
de la tecnología CAD/CAM que ha permitido obtener unidades de fresado de distintos materiales.
Cada material presenta ...
Miralles Ricós, Ramón; Carrión García, Alicia; Looney, D.; Lara Martínez, Guillermo-Fernán; D. Mandic(Acoustical Society of America, 2015-09)
Extracting frequency-derived parameters allows for the identification and characterization of acoustic events, such as those obtained in passive acoustic monitoring applications. Situations where it is difficult to achieve ...
[Otros] Lamb waves have emerged as a valuable tool to examine long plate-like structures in a faster way compared to conventional bulk wave techniques, which make them attractive in non-destructive testing. However, they ...
[EN] The microstructural features of heterogeneous and porous materials give rise to unique
non-linear dynamic behaviour. The purpose of this work is to investigate the dynamic
response of thermally damaged concrete specimens ...
Pizarroso Galán, Marta(Universitat Politècnica de València, 2022-01-12)
[ES] El grabado dental es una técnica ampliamente utilizada en odontología basada en la desmineralización de la dentina. Se emplea para facilitar la adherencia a la superficie dental de los diferentes adhesivos necesarios ...
[EN] The deployment of demand response in reserve markets has been widely discussed. Interruptible Load programs contract demand capacity from consumers in exchange for fixed and variable payments. System operators contract ...
Hemakom, Apit; Chanwimalueang, Theerasak; Carrión García, Alicia; Aufegger, Lisa; Constantinides, Anthony G.; Mandic, Danilo P.(Institute of Electrical and Electronics Engineers (IEEE), 2016-09)
Financial markets typically undergo periods of prosperity followed by periods of stagnation, and this undulation makes it challenging to maintain market efficiency. The efficient market hypothesis (EMH) states that there ...
[EN] High amplitude non-linear acoustic methods have shown great potential for the identification of micro-damage in inhomogeneous materials such as concrete. Usually, these methods evaluate non-linearity parameters related ...
Llorente, Roberto; Rodríguez-Hernández, Miguel A.; Hernandez Franco, Carlos Alberto; Sastre, Jorge; CARRIÓN GARCÍA, ALICIA; Madrigal-Madrigal, Javier(IATED Academy, 2020-11-10)
[EN] Higher education, as other social and economic sectors in Spain, was disrupted on 15th March 2020
following health emergency Laws enacted related to COVID-19. Non-presential lecturing was stablished
country-wide until ...
[EN] In this paper, we present a novel and completely different approach to the problem of scattering material characterization: measuring the degree of predictability of the time series. Measuring predictability can provide ...
Carrión García, Alicia(Universitat Politècnica de València, 2015-01-21)
Este trabajo presenta un nuevo enfoque en el problema de la caracterización de materiales dispersivos: la medida del grado de determinismo en señales de inspección ultrasónica. La medida del nivel de determinismo puede dar ...
Pitarch Bono, Damián(Universitat Politècnica de València, 2020-12-22)
[ES] El objetivo de este trabajo consistirá, realizar un estudio de la evolución de diferentes parámetros tanto ambientales (humedad, temperatura, presión atmosférica) como ultrasónicos (velocidad, atenuación¿) durante ...
[EN] An exhaustive study on thermal damage of Portland cement-based materials is addressed. Damage carried out at different temperatures on concrete between 40 and 525 degrees C were assessed by means of microstructural, ...
In this paper the study of frequency-dependent ultrasonic attenuation in strongly heterogeneous materials is addressed. To determine the attenuation accurately over a wide frequency range, it is necessary to have suitable ...
Miralles Ricós, Ramón; Lara Martínez, Guillermo-Fernán; Carrión García, Alicia; Esteban , José Antonio(Instituto de Telecomunicaciones y Aplicaciones Multimedia (iTEAM), 2013)
[EN] This paper reports the work carried out by iTEAM researchers in Passive Acoustic Monitoring (PAM) for underwater monitoring of cetaceans. It includes a description of novel signal processing algorithms for detection ...