Search results for "acústica"
showing 10 items of 28 documents
El TEDH y la Contaminación Acústica: Comentario a la STEDH sobre el caso cCuenca Zarzoso C. España
2018
El presente texto analiza el último caso originario de España sobre contaminación acústica y su afección al derecho a la protección de la privacidad reconocido en el artículo 8 CEDH. Se lleva a cabo de manera conjunta con el caso Moreno Gómez, habida cuenta de sus similitudes.
Estudio acústico de las vocales del noreste de China y de su adquisición por parte de hablantes con castellano como L1 y catalán como L1
2020
En esta tesis se presentan el sistema vocálico del chino y las diferencias acústicas entre las vocales chinas pronunciadas por hablantes nativas del noreste de China y por participantes españolas. La tesis persigue tres objetivos: en primer lugar, introducir el sistema vocálico del chino, centrándonos en las vocales del mandarín del noreste de China para describir fonéticamente las peculiaridades de su sistema vocálico. En segundo lugar, estudiar las semejanzas y las diferencias entre el sistema vocálico del castellano, del catalán y del chino, y comparar las vocales chinas pronunciadas por hablantes nativas del noreste de China y las pronunciadas por informantes castellanohablantes y valen…
Measurement of the atmospheric ?µ energy spectrum from 100 GeV to 200 TeV with the ANTARES telescope
2013
Atmospheric neutrinos are produced during cascades initiated by the interaction of primary cosmic rays with air nuclei. In this paper, a measurement of the atmospheric energy spectrum in the energy range 0.1-200 TeV is presented, using data collected by the ANTARES underwater neutrino telescope from 2008 to 2011. Overall, the measured flux is similar to 25 % higher than predicted by the conventional neutrino flux, and compatible with the measurements reported in ice. The flux is compatible with a single power-law dependence with spectral index gamma (meas)=3.58 +/- 0.12. With the present statistics the contribution of prompt neutrinos cannot be established.
Prominence and centralization: a two-way contrast between lexical and epenthetic non-labial high vowels in Algherese Catalan
2015
Algherese Catalan has the peculiarity of presenting an inserted [i] vowel across words in order to avoid certain consonant codas. In this study, we compare five acoustic features of this epenthetic segment (i.e., duration, intensity, and the three first formants) with those of lexical /i/ vowels, both stressed and unstressed. The results indicate that the three vowels present differences only with respect to duration, F2 and, to a lesser extent, F3. The second formant values decline progressively from the lexical stressed vowels to the inserted unstressed segments, with lexical unstressed segments at an intermediate point. This gradation mirrors the relative prominence of each vowel. The di…
Surface Acoustic Bloch Oscillations, the Wannier-Stark Ladder, and Landau-Zener Tunneling in a Solid
2010
We present the experimental observation of Bloch oscillations, the Wannier-Stark ladder, and Landau-Zener tunneling of surface acoustic waves in perturbed grating structures on a solid substrate. A model providing a quantitative description of our experimental observations, including multiple Landau-Zener transitions of the anticrossed surface acoustic Wannier-Stark states, is developed. The use of a planar geometry for the realization of the Bloch oscillations and Landau-Zener tunneling allows a direct access to the elastic field distribution. The vertical surface displacement has been measured by interferometry.
Acoustic manipulation of electron-hole pairs in GaAs at room temperature
2004
We demonstrate the optically detected long-range (>100 μm) ambipolar transport of photogenerated electrons and holes at room temperature by surface acoustic waves (SAWs) in (In,Ga)As-based quantum well structures coupled to an optical microcavity. We also show the control of the propagation direction of the carriers by a switch composed of orthogonal SAW beams, which can be used as a basic control gate for information processing based on ambipolar transport.
Search for relativistic magnetic monopoles with the ANTARES neutrino telescope
2012
Magnetic monopoles are predicted in various unified gauge models and could be produced at intermediate mass scales. Their detection in a neutrino telescope is facilitated by the large amount of light emitted compared to that from muons. This paper reports on a search for upgoing relativistic magnetic monopoles with the ANTARES neutrino telescope using a data set of 116 days of live time taken from December 2007 to December 2008. The one observed event is consistent with the expected atmospheric neutrino and muon background, leading to a 90% C.L. upper limit on the monopole flux between 1.3 ¿ 10¿17 and 8.9 ¿ 10¿17 cm¿2 s¿1 sr¿1 for monopoles with velocity ß ¿ 0.625.
Measurement of the group velocity of light in sea water at the ANTARES site
2012
The group velocity of light has been measured at eight different wavelengths between 385 nm and 532 nm in the Mediterranean Sea at a depth of about 2.2 km with the ANTARES optical beacon systems. A parametrisation of the dependence of the refractive index on wavelength based on the salinity, pressure and temperature of the sea water at the ANTARES site is in good agreement with these measurements.
O galego-português, matriz do mundo lingüístico luso-brasileiro
2021
O período inicial desta breve história da língua galega e o reintegracionismo lingüístico começa com umhas observaçons de umha «Carta» de Martim Sarmiento (1695-1771), precursor da filologia galega, e finaliza em 2019, ano em que a Real Academia Galega (RAG), toma o acordo de dedicar-lhe o «Dia das Letras Galegas» ao polígrafo ferrolano Ricardo Carvalho Calero (Ferrol 1910 - Santiago de Compostela 1990). Elaboram-se apenas umhas ideias sobre o século XIX e primeira metade do XX; mais informaçom aparece sobre a segunda metade do século passado e primeiras décadas do XXI.
Idiomatic intonation and forensic phonetics: sociolinguistic and dialectal information from intonation in Spanish
2015
Las investigaciones de carácter geoprosódico realizadas sobre el español y sus variedades ponen en evidencia que la entonación puede reportar importantes beneficios a la fonética forense, ya que esta lleva asociada información de carácter dialectal y sociolingüístico de especial relevancia sobre el individuo –grupo sociocultural al que pertenece, origen geográfico, medio social en el que se inserta–, además de otros rasgos, cualidades o circunstancias como la edad, el sexo, o incluso su temperamento, carácter o estado de ánimo. Para ello se hace necesario no solo saber qué parámetros acústicos suprasegmentales son relevantes para la identificación del hablante, sino también analizar la vari…