[EN] We have studied the gammap--> pi+ pi- p reaction using a model which includes N, DELTA(1232), N*(1440) and N*(1520) intermediate baryonic states and the rho-meson as intermediate 2pi-resonance. The model reproduces ...
Acoustic transparency is studied in two-dimensional sonic crystals consisting of hexagonal distributions of cylinders with continuously varying properties. The transparency condition is achieved by selectively closing the ...
Garín Escrivá, Moisés; Fenollosa Esteve, Roberto; Alcubilla, Ramón; Shi, Lei; Marsal, L. F.; Meseguer Rico, Francisco Javier(Nature Publishing Group, 2014-03)
[EN] Silicon is the material of choice for visible light photodetection and solar cell fabrication. However, due to the intrinsic band gap properties of silicon, most infrared photons are energetically useless. Here, we ...
Ardid Ramírez, Miguel; Felis-Enguix, Iván; Martínez Mora, Juan Antonio; Saldaña-Coscollar, María; Albert, A.; Andre, M.; Anghinolfi, M.; Anton, G.; Aubert, J. -J.; Avgitas, T.; Baret, B.; Barrios-Martí, J.; Basa, S.; Bertin, V.; Biagi, S.(Springer, 2017-06-21)
A novel algorithm to reconstruct neutrino-induced particle showers within the ANTARES neutrino telescope is presented. The method achieves a median angular resolution of 6º, for shower energies below 100 TeV. Applying this ...
Romero García, Vicente; Sánchez Pérez, Juan Vicente; García Raffi, Luis Miguel(IOP Publishing: Hybrid Open Access, 2011)
The use of sonic crystals (SCs) as environmental noise barriers has certain advantages from both the acoustical and the constructive points of view with regard to conventional ones. However, the interaction between the SCs ...
González Salido, Nuria(Universitat Politècnica de València, 2012-02-17)
El estudio numérico de la dispersión de ondas planas de sonido por diferentes geometrías finitas es presentado. La información contenida en los ecos (amplitud y fase) permite caracterizar ciertas propiedades de los dispersores ...
We show that specially designed two-dimensional arrangements of full elastic cylinders embedded in a nonviscous fluid or gas define ( in the homogenization limit) a new class of acoustic metamaterials characterized by a ...
Samaniego, Diego; Vidal Rodriguez, Borja(Institute of Electrical and Electronics Engineers, 2019-03-15)
[EN] A technique to enhance the slope of a photonic microwave filter based on the stimulated Brillouin scattering is proposed. It relies on exploiting the polarization dependence of Brillouin gain in birefringent fibers. ...
Chin, Sanghoon; Thevenaz, Luc; Sancho Durá, Juan; Sales Maicas, Salvador; Capmany Francoy, José; Berger, Perrine; Bourderionnet, Jerome; Dolfi, Daniel(Optical Society of America: Open Access Journals, 2010-10-11)
[EN] We experimentally demonstrate a novel technique to process broadband microwave signals, using all-optically tunable true time delay in optical fibers. The configuration to achieve true time delay basically consists ...
Fuente Herraiz, David(Universitat Politècnica de València, 2019-06-28)
La presente tesis doctoral, titulada "Contribution to the modelling of the light field distribution within Synechocystis sp. PCC 6803 cultures and its influence on cellular photosynthesis processes", engloba diversos ...
We present an experimental and theoretical lattice-dynamical study of InN at high hydrostatic pressures. We perform Raman scattering measurements on five InN epilayers, with different residual strain and free electron ...
HgWO 4 at ambient pressure is characterized using a combination of ab initio calculations, X-ray diffraction and Raman scattering measurements. The effect of low pressure and temperature on the structural stability is ...
Navarro Ruiz, Juan Miguel; Escolano Carrasco, José; Cobos Serrano, Máximo; López Monfort, José Javier(Acoustical Society of America, 2013-03)
The diffusion equation model was used for room acoustic simulations to predict the sound pressure level and the reverberation time. The technical literature states that the diffusion equation method accurately models the ...
Talens Oliag, Pau(Universitat Politècnica de València, 2016-07-28)
Cuando la luz índice sobre un alimento opaco, la porción de luz que no es absorbida es reflejada por el producto con mayor o menor intensidad dependiendo de la naturaleza del alimento y de la estructura de la superficie. ...
[EN] The Protvino accelerator facility located in the Moscow region, Russia, is in a good position to offer a rich experimental research program in the field of neutrino physics. Of particular interest is the possibility ...
Páez Rodríguez, Jorge(Universitat Politècnica de València, 2014-03-11)
Scattering of sound from cylinders of various materials and lengths is an important issue,
although it has been investigated for decades,some measurements has discovered that some
modes of propagation hasn't been described ...
[EN] We present deep-subwavelength diffusing surfaces based on acoustic metamaterials, namely metadiffusers. These sound diffusers are rigidly backed slotted panels, with each slit being loaded by an array of Helmholtz ...
Samaniego-Riera, Diego; Vidal Rodriguez, Borja(Institute of Electrical and Electronics Engineers (IEEE), 2016-12)
A method to enhance the filter slope of Brillouin-based photonic microwave filters is presented. This improvement is achieved by the combination of Brillouin gain and loss responses over phase-modulated signals. The ...
Vilaplana Cerda, Rosario Isabel(Universitat Politècnica de València, 2008-05-06)
Esta tesis está enfocada a la obtención de las propiedades de scattering de una distribución de partículas no esféricas y a su aplicación a las observaciones astronómicas, en longitudes de onda del dominio visible, del ...