Search results for "BAND"
showing 10 items of 2610 documents
La significación de Chapí en la vida musical valenciana
2012
En este trabajo se analiza la significación que el gran compositor de música escénica Ruperto Chapí tuvo en la vida musical valenciana, tanto durante su vida como en los años posteriores a su muerte. Por ello, el análisis se centra en la repercusión y el impacto que su participación directa produjo en diferentes campos de la actividad musical autóctona. Ello hace que se descarte el estudio de la recepción de sus zarzuelas en el ámbito valenciano. El análisis de esta significación se centra en la vida musical de Valencia y, en menor medida, en la de Alicante. Su presencia se puede constatar en torno a actividades relacionadas con la educación musical, las entidades culturales o los concursos…
Premiers résultats de l'enquête longitudinale sur les conditions de la réussite, de l'échec et de l'abandon à l'université de Dijon
1976
International audience
Caractéristiques et conditions de réussite, d'échec ou d'abandon à l'Université de Dijon
1977
International audience; Cet article donne les très grandes lignes d'une recherche engagée pour le compte du Service d'Études et d'Informations Statistiques du Secrétariat d'État aux Universités. La recherche s'appuie sur une enquête longitudinale menée à l'Université de Dijon depuis la rentrée 1974. Le texte donne très rapidement les caractéristiques des inscriptions universitaires dans les différentes filières et est principalement centré sur la construction de modèles de réussite. Ces modèles multivariés, qui ont fait l'objet de recherches méthodologiques spécifiques, permettent de séparer les effets des différentes variables et de calculer les probabilités de réussite de n'importe quel é…
Mīļo, Krastkaln
1927
Īss pārskats par Rīgas Latviešu biedrības Zinību komisijas Valodniecības nodaļā nolasītajiem ziņojumiem
High-Resolution Photoacoustic Raman-Spectroscopy of Gases
1992
0377-0486; A high-resolution photoacoustic Raman spectroscopy experiment is described. The resolution achieved by using two single-mode pulsed lasers is about 0.0054 cm-1 (full width at half maximum intensity). The experiment was tested first on the v1/2v2 bands of CO2 and gave an increase of at least about one order of magnitude in the signal-to-noise ratio with respect to stimulated Raman spectroscopy at low pressure (ca. 10 Torr almost-equal-to 13 kPa). The sensitivity is also demonstrated by the study of the weak hot band v1 + v2 - v2 of CO2. In both cases, the experimental line shape is well reproduced by taking into account Doppler and collisional effects. A comparison with CARS spect…
Determination of Temperature by Stimulated Raman Scattering of Molecular Nitrogen, Oxygen, and Carbon-Dioxide
1993
0721-7269; We have determined the temperature from SRS spectra of N2-N2, N2-CO2, O2-O2, and CO2-CO2 recorded in wide pressure and temperature ranges. The fitting procedure takes simultaneously into account the Dicke effect and motional narrowing. We have quantified the accuracy of the MEG and ECS-P models for rotational relaxation. The temperature extracted from each model is compared with thermocouple measurements. The influence of vibrational broadening and shifting is discussed in detail.
Raman Intensities of the ν1/ν3 Dyad of 28SiH4
1995
0022-2852; The stimulated Raman spectrum of 28SiH4 has been recorded in the ν1/ν3 region between 2182 and 2190 cm(-1). The intensities of the Raman transitions were modeled using a dyad scheme for the two interacting bands with a first-order polarizability expansion. The involved polarizability parameter; have been adjusted to fit about 800 measured intensities of transitions reaching upper states up to J = 18. The resulting standard deviation is about 10%. (C) 1994 Academic Press, Inc.
Broadband stimulated Raman backscattering
2016
International audience; Broadband amplification employing stimulated Raman backscattering is demonstrated. Using seed pulses with a bandwidth of about 200 nm, we study the amplification in a wide spectral range in a single laser shot. With chirped pump pulses and a Ne gas jet, we observed under optimized conditions, amplification in a range of about 80 nm, which is sufficient to support the amplification of sub-20 fs pulses. This broad amplification range is also in excellent agreement with PIC simulations. The conversion efficiency is at certain wavelengths as high as 1.2% and was measured to be better than 6×10 −3 on average.
Thermal remote sensing from Airborne Hyperspectral Scanner data in the framework of the SPARC and SEN2FLEX projects: an overview
2009
Abstract. The AHS (Airborne Hyperspectral Scanner) instrument has 80 spectral bands covering the visible and near infrared (VNIR), short wave infrared (SWIR), mid infrared (MIR) and thermal infrared (TIR) spectral range. The instrument is operated by Instituto Nacional de Técnica Aerospacial (INTA), and it has been involved in several field campaigns since 2004. This paper presents an overview of the work performed with the AHS thermal imagery provided in the framework of the SPARC and SEN2FLEX campaigns, carried out respectively in 2004 and 2005 over an agricultural area in Spain. The data collected in both campaigns allowed for the first time the development and testing of algorithms for …
Imaging of Located Buried Defects in Metal Samples by an Scanning Microwave Microscopy
2011
Abstract A non-destructive method is proposed to detect the located buried defects using scanning microwave microscopy. Based on the “skin effect”, our recent developments authorize 3D tomography with nanometric resolution. This technique associates the electromagnetic microwave measurement using a Vector Network Analyzer (VNA) with the nanometer-resolution positioning capabilities of an Atomic Force Microscope. At each used frequency, an incident electromagnetic wave is send to the sample and the reflected wave gives information on a specific depth layer in the material. With a large bandwidth of frequencies, a 3D tomography is allowed inside the material. With characteristic tools of nano…