Search results for "CAO"
showing 10 items of 134 documents
SDSS-III: Massive Spectroscopic Surveys of the Distant Universe, the Milky Way Galaxy, and Extra-Solar Planetary Systems
2011
Building on the legacy of the Sloan Digital Sky Survey (SDSS-I and II), SDSS-III is a program of four spectroscopic surveys on three scientific themes: dark energy and cosmological parameters, the history and structure of the Milky Way, and the population of giant planets around other stars. In keeping with SDSS tradition, SDSS-III will provide regular public releases of all its data, beginning with SDSS DR8 (which occurred in Jan 2011). This paper presents an overview of the four SDSS-III surveys. BOSS will measure redshifts of 1.5 million massive galaxies and Lya forest spectra of 150,000 quasars, using the BAO feature of large scale structure to obtain percent-level determinations of the…
Intégration d'une bouche artificielle dans un système de prélèvement Gilson
2007
Noticias del caos
2007
Structure and dynamics of CaO films: A computational study of an effect of external static electric field
2017
Oxide films play a significant role in a wide range of industrial fields, mostly due to the thickness-dependent variation of their properties. Recently, it has been proposed based on the experimental study that carrier transport in CaO films proceeds via strong phonon excitations with a variable signal depending on the film thickness. In this paper, we report a detailed investigation in the frame of the density functional theory of structural and electronic properties of freestanding and Mo(100)-supported CaO films, as well as phonons therein, as functions of the film thickness and intensity of the external static electric field. Our calculations demonstrate that phonon frequencies negligib…
Guerras preventivas, amenaza mundial
2003
Towards a multi-agent model to prevent damage caused by cocoa mirids to cocoa pods
2019
Agriculture in general and cocoa farm in particular is one of the primary sources of income for several African countries. Although quite useful for the development of Africa, cocoa production is faced with several challenges like the diseases of cocoa trees. Mirid (Sahlbergella singularis) is the worst pest affecting cocoa production across west Africa causing 30% to 40% of damage on cocoa production. It is difficult to control the mirids’ population and its impact on the cacao production. Related works on mirids studied the mirids population as a macroscopic entity without considering local interactions of individual mirids. These models did not consider the behaviours and the environment…
Near-infrared diffuse reflectance spectroscopy and neural networks for measuring nutritional parameters in chocolate samples.
2007
Abstract A rapid and non-destructive method has been developed for the characterization of chocolate samples based on diffuse reflectance near-infrared Fourier transform spectroscopy (DRIFTS) and artificial neural networks (ANNs). This methodology provides a potentially useful alternative to time-consuming chemical methods of analysis. To assess its utility, 36 chocolate samples purchased from the Spanish market were analyzed for the determination of the main nutritional parameters like carbohydrates, fat, proteins, energetic value and cocoa content. Direct triplicate measurements of each sample were carried out by DRIFTS. Cluster hierarchical analysis was used for selecting calibration and…
Mettre le chocolat en mots : terminologie de filière ou commerciale ?
2021
International audience; Ce chapitre interroge les terminologies mises en œuvre pour la description organoleptique et hédonique de la fève de cacao produite en Equateur et approchée à partir de la dégustation du produit fini qu’est le chocolat. Il s’arrête en particulier sur les modalités de construction de ces terminologies dans le contexte local spécifique qui repose tout à la fois sur une dichotomie entre la culture de la fève et sa transformation en chocolat et sur la situation diglossique du pays entre langues natives pour les producteurs et espagnol pour les exportateurs et aficionados à l’origine d’un discours largement prescriptif. Affichant une orientation éminemment méthodologique,…
Búsqueda de nuevos ingredientes bioactivos en obesidad para el diseño de nuevos alimentos funcionales, en base a la demanda del consumidor
2015
La innovación tecnológica en materia de salud ha sido un campo ampliamente estudiado y sigue siendo un foco de interés económico reiterado y prioritario. La alimentación es uno de los hábitos que más repercusión tienen en el estado de salud y en la prevención de determinadas enfermedades lo que influye cada vez más en los hábitos de compra de los consumidores (Niva M., 2007, Bech-Larsen T et al., 2007, Jones PJ et al., 2007, Van Kleef E et al., 2002). Un trastorno de la alimentación puede generar obesidad y con ello el desarrollo de múltiples complicaciones asociadas a la misma. En los últimos años, la Organización Mundial de la Salud (WHO., 2014 y 2015) ha venido alertando de la gran crisi…
Microbubble PhoXonic resonators: Chaos transition and transfer
2022
We report the activation of optomechanical chaotic oscillations in microbubble resonators (MBRs) through a blue-side excitation of its optical resonances. We confirm the sequence of quasi-periodical oscillation, spectral continuum and aperiodic motion; as well as the transition to chaos without external feedback or modulation of the laser source. In particular, quasi periodic transitions and a spectral continuum are reported for MBRs with diameters up to 600 μm, whereas only an abrupt transition into a spectral con- tinuum is observed for larger microbubbles.