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Listar por palabra clave "Acoustic waves"

Mostrando ítems 1-16 de 16

AMADEUS - The acoustic neutrino detection test system of the ANTARES deep-sea neutrino telescope

Aguilar, J. A.; Al Samarai, I.; Albert, A.; Anghinolfi, M.; Anton, G.; Anvar, S.; Ardid Ramírez, Miguel; Jesus, A. C. Assis; Astraatmadja, T.; Aubert, J. -J.; Auer, R.; Bou Cabo, Manuel; Camarena Femenia, Francisco; Larosa, Giuseppina; Martínez Mora, Juan Antonio (Elsevier, 2011-01-11)

The AMADEUS (ANTARES Modules for the Acoustic Detection Under the Sea) system which is described in this article aims at the investigation of techniques for acoustic detection of neutrinos in the deep sea. It is integrated ...
Anisotropic Metamaterials as sensing devices in acoustics and electromagnetism

Sánchez-Dehesa Moreno-Cid, José; Torrent Martí, Daniel; Carbonell Olivares, Jorge (Society of Photo-optical Instrumentation Engineers (SPIE), 2012)

We analyze the properties of acoustic and electromagnetic metamaterials with anisotropic constitutive parameters. Particularly, we analyze the so-called Radial Wave Crystals, which are radially periodic structures verifying ...
Asymmetric propagation using enhanced self-demodulation in a chirped phononic crystal

Cebrecos, Alejandro; Jimenez, Noe; Romero García, Vicente; Picó Vila, Rubén; Sánchez Morcillo, Víctor José; García-Raffi, L. M. (AIP Publishing, 2016-12)

Asymmetric propagation of acoustic waves is theoretically reported in a chirped phononic crystal made of the combination of two different nonlinear solids. The dispersion of the system is spatially dependent and allows the ...
Broadband quasi perfect absorption using chirped multi-layer porous materials

Jimenez, Noe; Romero García, Vicente; Cebrecos, Alejandro; Picó Vila, Rubén; Sánchez Morcillo, Víctor José; García-Raffi, L. M. (AIP Publishing, 2016-12)

This work theoretically analyzes the sound absorption properties of a chirped multi-layer porous material including transmission, in particular showing the broadband unidirectional absorption properties of the system. Using ...
Detergents sensing system based on SH-SAW devices

Vivancos, José-Luís; Rácz, Z.; Cole, M.; Soto Camino, Juan; Gardner, J.W. (Elsevier, 2011)

[EN] We report on the design and characterization of a novel analytical sensing system for the detection and discrimination of various detergents. Our sensor system could play a key role in the development of more efficient ...
Diseño y optimización de lentes acústicas de índice de refracción variable para la focalización de ultrasonidos en agua

Tarrazó Serrano, Daniel (Universitat Politècnica de València, 2014-01-29)

En este trabajo se analizan las propiedades de propagación de las ondas sonoras en un sistema con simetría axial cuyos dispersores son toroides rígidos. El objetivo es el diseño, construcción y caracterización de un sistema ...
Engineering surface waves in flat phononic plates

Estrada, Héctor; Candelas Valiente, Pilar; Belmar Ibáñez, Francisco; Uris Martínez, Antonio; García de Abajo, F. Javier; Meseguer Rico, Francisco Javier (American Physical Society, 2012-05-01)

Surface acoustic-wave phenomena span a wide range of length scales going from the devastation of earthquakes down to image reconstruction of buried nanostructures. In solid-fluid systems, the so-called Scholte-Stoneley ...
Enhanced of sound by soft reflections in exponentially chirped crystals

Cebrecos Ruiz, Alejandro; Picó Vila, Rubén; Sánchez Morcillo, Víctor José; Staliünas, Kestutis; Romero García, Vicente; García-Raffi, L. M. (American Institute of Physics (AIP): Open Access Journals, 2014-12)

The enhancement of sound inside a two dimensional exponentially chirped crystal during the soft reflections of waves is experimentally and theoretically explored in this work. The control of this enhancement is achieved ...
Evaluación del ruido submarino producido por dragados en puertos de poco calado

Izquierdo Núñez, Claudia (Universitat Politècnica de València, 2024-09-11)

[ES] La predicción del ruido submarino generado por las actividades humanas es un aspecto para implementar en los proyectos de evaluación de impacto ambiental cuando estas tienen lugar en el medio marino o en las ...
Green Computing in Underwater Wireless Sensor Networks Pressure Centric Energy Modeling

Khasawneh, Ahmad M.; Kaiwartya, Omprakash; Khalifeh, Ala; Abualigah, Laith M.; Lloret, Jaime (Institute of Electrical and Electronics Engineers, 2020-12)

[EN] Underwater wireless sensor networks (UWSNs) have witnessed significant attention from both industries and academia in research and development. This is due to the wide range of applications including scientific, ...
Simultaneous self-collimation of fundamental and second-harmonic in sonic crystals

Soliveres, Ester; Pérez Arjona, Isabel; Picó Vila, Rubén; Espinosa Roselló, Víctor; Sánchez Morcillo, Víctor José; Staliunas, K. (American Institute of Physics (AIP), 2011-10)

Simultaneous self-collimation of sound beams with different frequencies, corresponding to fundamental wave and to its second harmonic, is proposed theoretically and demonstrated experimentally. The result is obtained when ...
Sound Focusing Capability of a CO2 Gas-Filled Cuboid

Tarrazó-Serrano, Daniel; Rubio Michavila, Constanza; Minin, O. V.; Uris Martínez, Antonio; Minin, I. V. (Springer, 2020-10)

[EN] The ability of focus waves with concave or convex surfaces is well known both in optics and in acoustics. Nowadays, the possibility of beamforming sound with flat lenses is a hot topic because of its application in ...
Surface acoustic wave based analytical system for the detection of liquid detergents

Vivancos, José-Luis; Racz, Zoltan; Cole, Marina; Gardner, Julian W. (Elsevier, 2012-08)

[EN] A novel analytical sensing system has been designed for the characterization and discrimination of different detergents in water. This micro-sensor system could play a key role in the development of more efficient and ...
Thermal holographic patterns for ultrasound hyperthermia

Andrés, Diana; Vappou, Jonathan; Jimenez, Noe; Camarena Femenia, Francisco (American Institute of Physics, 2022-02-21)

[EN] Holograms can shape wavefronts to produce arbitrary acoustic images. In this work, we experimentally demonstrate how acoustic holograms can produce controlled thermal patterns in absorbing media at ultrasonic frequencies. ...
Transmission, reflection and absorption in Sonic and Phononic Crystals

Cebrecos Ruiz, Alejandro (Universitat Politècnica de València, 2015-10-26)

[EN] Phononic crystals are artificial materials formed by a periodic arrangement of inclusions embedded into a host medium, where each of them can be solid or fluid. By controlling the geometry and the impedance contrast ...
Using Acoustic Tomography to Model Wood Deterioration in Cedrelinga cateniformis Ducke in the Peruvian Amazon

Cardenas-Rengifo, Gloria P.; Baselly-Villanueva, Juan Rodrigo; Chumbimune-Vivanco, Sheyla Y.; Macedo-Ramírez, Arturo T.; Salazar, Evelin; Minaya, Benjamin; Quintana, Saron; Cabudivo, Abrahan; Palma, Stella S. A.; Alvarez-Alvarez, Pedro; Ocaña-Reyes, Jimmy A. (MDPI AG, 2024-05)

[EN] Forest plantations can be established in order to restore degraded areas. Acoustic tomography, which is of increasing importance in forest management, was used in the present study to obtain information for managing ...