Relevant bibliographies by topics / Spectre de graisse

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Spectre de graisse'

Author: Grafiati
Published: 19 April 2023
Last updated: 31 July 2025

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Journal articles on the topic "Spectre de graisse"

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Greenberg, J. M., and F. Baas. "Infrared spectra from interstellar dust grains." Advances in Space Research 5, no. 3 (1985): 19–26. http://dx.doi.org/10.1016/0273-1177(85)90443-0.

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Maggipinto, G., A. Minafra, and F. Tritto. "Optical spectra of amorophous carbon grains." Astrophysics and Space Science 108, no. 1 (1985): 101–11. http://dx.doi.org/10.1007/bf00650122.

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Höfner, S., S. Bladh, B. Aringer, and K. Eriksson. "Dynamic atmospheres and winds of cool luminous giants." Astronomy & Astrophysics 657 (January 2022): A109. http://dx.doi.org/10.1051/0004-6361/202141224.

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Context. The winds observed around asymptotic giant branch (AGB) stars are generally attributed to radiation pressure on dust formed in the extended dynamical atmospheres of these long-period variables. The composition of wind-driving grains is affected by a feedback between their optical properties and the resulting heating due to stellar radiation. Aims. We explore the gradual Fe enrichment of wind-driving silicate grains in M-type AGB stars to derive typical values for Fe/Mg and to test the effects on wind properties and synthetic spectra. Methods. We present new radiation-hydrodynamical DA
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Imada, Saki, Toshiyuki Isshiki, Nobuyuki Tatemizo, et al. "Formation of various-axis-oriented wurtzite nuclei and enlargement of the a-axis-oriented region in AlFeN films deposited on Si(100) substrates." Materials Advances 2, no. 12 (2021): 4075–80. http://dx.doi.org/10.1039/d0ma01026j.

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A-axis-oriented single-crystal AlFeN grains grew from randomly oriented small wurtzite grains with deposition time on Si(100). (a) Deposition time dependence of Al K-edge XANES spectra. (b) Theoretical spectra.
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Mariñoso Guiu, Joan, Antoni Macià, and Stefan T. Bromley. "How to accurately model IR spectra of nanosized silicate grains." Proceedings of the International Astronomical Union 15, S350 (2019): 431–33. http://dx.doi.org/10.1017/s174392132000006x.

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AbstractWe assess the accuracy of various computational methods for obtaining infrared (IR) spectra of nanosized silicate dust grains directly from their atomistic structure and atomic motions. First, IR spectra for a selection of small nanosilicate clusters with a range of sizes and chemical compositions are obtained within the harmonic oscillator approximation employing density functional theory (DFT) based quantum chemical calculations. To check if anharmonic effects play a significant role in the IR spectra of these nanoclusters, we further obtain their IR spectra from finite temperature D
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Dadswell, G., and W. W. Duley. "Simulation of Infrared Spectra of Carbonaceous Grains." Astrophysical Journal 476, no. 1 (1997): 184–90. http://dx.doi.org/10.1086/303590.

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Matter, A., F. C. Pignatale, and B. Lopez. "Spatially resolving the chemical composition of the planet building blocks." Monthly Notices of the Royal Astronomical Society 497, no. 3 (2020): 2540–52. http://dx.doi.org/10.1093/mnras/staa2137.

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ABSTRACT The inner regions of protoplanetary discs (from ∼0.1 to 10 au) are the expected birthplace of planets, especially telluric. In those high-temperature regions, solids can experience cyclical annealing, vapourisation, and recondensation. Hot and warm dusty grains emit mostly in the infrared domain, notably in N-band (8–13 μm). Studying their fine chemistry through mid-infrared spectro-interferometry with the new Very Large Telescope Interferometer (VLTI) instrument Multi AperTure mid-Infrared SpectroScopic Experiment (MATISSE), which can spatially resolve these regions, requires detaile
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Bhowmik, T., A. Boccaletti, P. Thébault, et al. "Spatially resolved spectroscopy of the debris disk HD 32297." Astronomy & Astrophysics 630 (September 24, 2019): A85. http://dx.doi.org/10.1051/0004-6361/201936076.

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Context. Spectro-photometry of debris disks in total intensity and polarimetry can provide new insight into the properties of the dust grains therein (size distribution and optical properties). Aims. We aim to constrain the morphology of the highly inclined debris disk HD 32297. We also intend to obtain spectroscopic and polarimetric measurements to retrieve information on the particle size distribution within the disk for certain grain compositions. Methods. We observed HD 32297 with SPHERE in Y, J, and H bands in total intensity and in J band in polarimetry. The observations are compared to
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Dr., Brajesh Kumar Sharma. "Preliminary fluorometric study of healthy and smut contaminated grains of pearl millet." International Journal of Advance Research in Multidisciplinary 3, no. 1 (2025): 28–30. https://doi.org/10.5281/zenodo.14749102.

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Pearl millet (<em>Pennisetum glaucum</em>) is a vital cereal crop in arid and semi-arid regions, known for its resilience and nutritional value. However, it is susceptible to various diseases, including smut, caused by the fungus <em>Tolyposporium penicillariae</em>, which significantly impacts yield and quality. This preliminary study aims to differentiate healthy and smut-contaminated grains of pearl millet using fluorometric analysis, a technique that measures the fluorescence emitted by substances when excited by light. The study employed fluorometry to detect variations in the fluorescenc
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Bishop, J. L., M. D. Dyar, E. C. Sklute, and A. Drief. "Physical alteration of antigorite: a Mössbauer spectroscopy, reflectance spectroscopy and TEM study with applications to Mars." Clay Minerals 43, no. 1 (2008): 55–67. http://dx.doi.org/10.1180/claymin.2008.043.1.04.

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AbstractPhysical alteration of magnetite-bearing antigorite grains is investigated in this study using Mössbauer, visible/near-infrared (VNIR) and mid-IR spectroscopy coupled with scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM) analyses. An expected decrease in grain size with grinding is observed using SEM. The HRTEM images illustrate that the nanophase-sized grains which adhere to larger grains have 7 Å antigorite patterns. Mössbauer spectroscopy shows the presence of antigorite, magnetite and an amorphous phase. Visible/near infrared spectra e
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Dissertations / Theses on the topic "Spectre de graisse"

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Daudé, Pierre. "Quantification du tissu adipeux épicardique à haut champ par IRM-Dixon, pour le phénotypage de la cardiomyopathie diabétique." Electronic Thesis or Diss., Aix-Marseille, 2022. http://www.theses.fr/2022AIXM0333.

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L’amélioration de la prise en charge des complications cardiaques dans les maladies métaboliques, obésité et diabète, est un enjeu majeur de notre société. La mesure du tissu adipeux épicardique (TAE), dépôt de graisse attaché au cœur, est un élément diagnostique émergent et prometteur pour identifier les patients à risque. Nous avons développé l’automatisation de cette mesure sur des images IRM de routine par apprentissage profond. Puis, une technique IRM innovante a été proposée pour mesurer et caractériser le TAE en 3D, réunissant : une acquisition en respiration libre, une reconstruction d
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Nehmé, Cyrine Abdo. "Observations multi-longueur d'onde et modélisation des nuages interstellaires du complexe du Caméléon." Paris 7, 2005. http://www.theses.fr/2005PA077192.

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Cette thèse utilise des observations en direction de trois étoiles du complexe du Caméléon pour caractériser les propriétés du milieu interstellaire proche. L'étude comporte deux volets: analyse de données observationelles multi-longueurs d'ondes et modélisation du milieu interstellaire qu'elles tracent à l'aide d'un modèle de région dominée par les photons (PDR). Les spectres Ultra-Violet fournis par le satellite FUSE permettent de déterminer le taux de formation de la molécule d'hydrogène sur les grains. Les données spectrales en Ultra-Violet à haute résolution founies par STIS/HST et les sp
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Volovitch, Polina. "Percolation et matériaux pollycristallins : Application au mouillage des interfaces." Paris, ENSAM, 2002. http://www.theses.fr/2002ENAM0019.

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Henckes, Laurent. "Etude par simulation de spectres vibrationnels de la liaison hydrogène dans le N-méthyl acétamide cristallin et de la structure des grains carbonés." Paris 11, 2000. http://www.theses.fr/2000PA112355.

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Piederriere, Yann. "Etude du speckle de milieux diffusants liquides. Application à la détermination de paramètres biophysiques." Phd thesis, Université de Bretagne occidentale - Brest, 2003. http://tel.archives-ouvertes.fr/tel-00005314.

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Le travail présenté dans ce mémoire se place dans le cadre du développement actuel de l'optique laser pour l'établissement de diagnostics médicaux. Dans ce but, l'étude du champ de speckle peut se révéler être une voie pertinente d'analyse. Le speckle, ou granularité lumineuse, formé par des milieux diffusants éclairés par une source de lumière cohérente, peut potentiellement apporter une quantité importante d'informations sur ces milieux. En effet, lorsque aucun système imageant n'est employé, les caractéristiques du speckle comme la taille des grains, le contraste, la polarisation ou encore
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Mondet, Jean. "Etude des paramètres de surface de la calotte polaire antarctique, dans les domaines spectraux du visible et du proche infrarouge, à partir des données de l'instrument de télédétection POLDER." Phd thesis, Grenoble 1, 1999. http://tel.archives-ouvertes.fr/tel-00766029.

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L'albédo de la surface antarctique Joue un rôle important dans les études climatologiques. Essentiellement deux facteurs peuvent modifier sa valeur: la taille des grains de neige et la rugosité de surface générée par les vents dominants. Ces caractéristiques de surface varient dans l'espace et dans le temps et seuls les satellites permettent régulièrement leurs estimations sur un continent aussi vaste, inhospitalier et isolé que l'Antarctique. Parmi les in struments de télédétection, POLDER (POLarization and Directionality of the Earth's Reflectances), à bord du satellite ADEOS, est le premier
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Deloule, Sybelle. "Développement d'une méthode de caractérisation spectrale des faisceaux de photons d'énergies inférieures à 150 keV utilisés en dosimétrie." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112273/document.

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En dosimétrie, la distribution énergétique des photons émis par une source constitue un paramètre incontournable. Dans la gamme des basses et moyennes énergies (i.e. E&lt;150 keV ici), le LNHB possède 5 tubes à rayons X ainsi que des grains de curiethérapie à l’iode 125, présentant des hauts débits de fluence. La détermination du spectre émis par calcul (déterministe ou Monte-Carlo) est limitée, dans la gamme d’énergie considérée, par les incertitudes élevées sur les bases de données ainsi que par les approximations du modèle. La mesure directe avec un détecteur au germanium ultra-pur a donc é
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Galametz, Maud. "Toward the Comprehension of the Infrared to Submillimeter View of the Interstellar Medium of Nearby Galaxies." Phd thesis, Université Paris-Diderot - Paris VII, 2010. http://tel.archives-ouvertes.fr/tel-00555151.

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Cette thèse s'attache à l'étude du milieu interstellaire (MIS) des galaxies proches afin de mieux comprendre les processus physiques de ses composantes de gaz et de poussière. Nous nous sommes principalement concentrés sur les galaxies de faible métallicité pour étudier l'influence de l'enrichissement en métaux sur les propriétés du MIS. Les études précédentes ont montré que les densités spectrales d'énergie (SED) des galaxies à faible métallicité présentaient des différences notables avec celles des galaxies plus massives. Le rapport en masse poussière sur gaz (D/G) semble d'ailleurs dépendre
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Buttice, Vincent. "Caractérisation et étalonnage de la caméra de l'expérience ballon PILOT (Polarized Instrument for Long wavelength Observation of the Tenuous interstellar medium)." Phd thesis, Université Paris Sud - Paris XI, 2013. http://tel.archives-ouvertes.fr/tel-00946880.

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PILOT (Polarized Instrument for Long wavelength Observation of the Tenuous interstellar medium) est une expérience embarquée en ballon stratosphérique destinée à la mesure de l'émission polarisée de notre galaxie dans le submillimétrique. La charge pointée de PILOT est composée d'un télescope au foyer duquel est placée une caméra embarquant 2048 bolomètres, refroidis à 300 mK, mesurant dans deux bandes spectrales (240 µm et 550 µm) et deux polarisations. La détection de la polarisation est réalisée à l'aide d'un polariseur placé à 45° dans le faisceau, le décomposant en deux composantes polari
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Lebreton, Jérémy. "Observations et Modélisation des systèmes planétaires autour des étoiles proches." Phd thesis, Université de Grenoble, 2013. http://tel.archives-ouvertes.fr/tel-00876169.

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Les disques de débris orbitant dans l'environnement des étoiles proches constituent un indicateur très important des propriétés des systèmes planétaires extra-solaires. Depuis l'espace et au sol, les moyens observationnels actuels permettent de déterminer dans divers domaines de longueurs d'ondes les propriétés spatiales de ces disques et celles des grains de poussières circumstellaires. Cette thèse aborde le sujet de la modélisation des disques de débris, à partir de données fournies par de multiples instruments, en premier lieu les télescopes spatiaux Hubble et Herschel, et les interféromètr
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Books on the topic "Spectre de graisse"

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Pierre, Slangen, Cerruti Christine, Ecole des mines d'Alès, SPIE Europe, and Society of Photo-optical Instrumentation Engineers., eds. Speckles, from grains to flowers: Speckle06 : 13-15 September, 2006, Nîmes, France. SPIE, 2006.

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S, Hanner M., and United States. National Aeronautics and Space Administration., eds. Infrared observations of comets Halley and Wilson and properties of the grains: Summary of a workshop sponsored by the National Aeronautics and Space Administration, Washington, D.C., and held at Cornell University, Ithaca, New York, August 10-12, 1987. National Aeronautics and Space Administration, Scientific and Technical Information Division, 1988.

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Book chapters on the topic "Spectre de graisse"

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Tominaga, Shoji, Shogo Nishi, and Ryo Ohtera. "Spectral Imaging Methods for Estimating Fluorescence Emission Spectra from Plant Grains and Leaves." In Lecture Notes in Computer Science. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-72845-7_9.

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Greenberg, J. Mayo, and Willem Schutte. "Infrared Spectral Identification of Complex Organic Molecules in Interstellar Grains." In The Search for Extraterrestrial Life: Recent Developments. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5462-5_21.

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Ogasawara, Ryosuke, Shuichi Arikawa, and Satoru Yoneyama. "Speckle Interferometry Analysis of Deformation Behavior of Crystal Grains in Polycrystal." In Advancement of Optical Methods in Experimental Mechanics, Volume 3. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-00768-7_32.

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Xiao, Chun-Hua, Shao-Kun Li, Ke-Ru Wang, et al. "A Leaf Layer Spectral Model for Estimating Protein Content of Wheat Grains." In Computer and Computing Technologies in Agriculture IV. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-18369-0_3.

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Umezaki, Eisaku. "Investigation of Effect of Grains on Deformation of Wood under Shearing Loads Using Electronic Speckle Pattern Interferometry." In Experimental Mechanics in Nano and Biotechnology. Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-415-4.43.

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Langevin, Y., J. Kissel, J.-L. Bertaux, and E. Chassefière. "First statistical analysis of 5000 mass spectra of cometary grains obtained by PUMA 1 (Vega 1) and PIA (Giotto) impact ionization mass spectrometers in the compressed modes." In Exploration of Halley’s Comet. Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-82971-0_130.

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Riggs, Nancy, Brian McConnell, and John Graham. "Sedimentary provenance of Silurian basins in western Ireland during Iapetus closure." In New Developments in the Appalachian-Caledonian- Variscan Orogen. Geological Society of America, 2022. http://dx.doi.org/10.1130/2021.2554(16).

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ABSTRACT Three Silurian basin fills, the Llandovery–Wenlock Croagh Patrick and Killary Harbour–Joyce Country successions and the Ludlow–Pridoli Louisburgh–Clare Island succession, overstep the tectonic contacts between elements of the Grampian (Taconic) accretionary history of the Caledonian-Appalachian orogeny in western Ireland. New U-Pb detrital zircon data from lower strata of these Silurian rocks provide insight into basin evolution and paleogeography. The shallow-marine Croagh Patrick succession unconformably overlies the Clew Bay Complex and the northern part of the Ordovician South May
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"Doing Chemistry in the Dark: How Interstellar Dust Leads to Molecular Complexity in Interstellar Gas." In Dust in Galaxies. The Royal Society of Chemistry, 2019. http://dx.doi.org/10.1039/9781788015059-00092.

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Interstellar clouds are the locations of chemistry in space. Molecules formed in this chemistry are useful tracers of the gas and the physical conditions – such as density and temperature – within it. In this chapter we describe the complex chemical networks that produce these molecules in interstellar space. These molecules are vulnerable to destruction by starlight, particularly the ultraviolet radiation from hotter stars. The extinction provided by dust grains is strongest in the ultraviolet part of the spectrum. Therefore, dust grains can shield molecules from destruction by starlight and
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McKay*, Matthew P., and William T. Jackson Jr. "Geology of the Ouachita Mountains and linkages to North American late Paleozoic orogenesis." In Field Guides to the Ozarks: Exploring Karst, Ore, Trace Fossils, and Orogenesis. Geological Society of America, 2024. http://dx.doi.org/10.1130/2024.0068(04).

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ABSTRACT Correlations of Paleozoic strata from the southern Appalachian, Black Warrior, and Ouachita-Arkoma forelands show varying lithofacies and stratigraphic thicknesses for coeval deposits, as well as differences in the location of disconformities. This field trip will visit stops throughout the Ouachita Mountains and Arkoma basin to observe clastic strata variability in the Cambrian, Ordovician–Silurian, Mississippian, and Pennsylvanian periods. The spatial-temporal relationship between these units provides a first-order understanding of orogenic processes along the southeastern and south
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"What is the Structure of Interstellar Dust Grains? How to Find Their Physical Composition." In Dust in Galaxies. The Royal Society of Chemistry, 2019. http://dx.doi.org/10.1039/9781788015059-00045.

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The existence of interstellar dust grains was first suspected because they cause an interstellar ‘fog’ that tends to obscure the light from stars. This interstellar extinction varies with the colour of the starlight, being stronger in the blue part of the spectrum and weaker in the red. This trend is found to extend into the infrared and into the ultraviolet parts of the spectrum. The simplest explanation for this behaviour is that the dust is very finely divided, with sizes of particles ranging from about a few to about a hundred nanometres, and is composed of silicates and carbons.
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Conference papers on the topic "Spectre de graisse"

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Duan, Zhihui, Dong Wei, Akinori Yamada, Yoko Miyamoto, and Mitsuo Takeda. "Absolute speckle interferometry with an angular-spectrum-tunable source." In Speckle06: Speckles, From Grains to Flowers, edited by Pierre Slangen and Christine Cerruti. SPIE, 2006. http://dx.doi.org/10.1117/12.695359.

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Goodman, Joseph W. "The ubiquitous speckle phenomenon." In Speckle06: Speckles, From Grains to Flowers, edited by Pierre Slangen and Christine Cerruti. SPIE, 2006. http://dx.doi.org/10.1117/12.695251.

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Federico, Alejandro, and Guillermo H. Kaufmann. "Multifractals and dynamic speckle." In Speckle06: Speckles, From Grains to Flowers, edited by Pierre Slangen and Christine Cerruti. SPIE, 2006. http://dx.doi.org/10.1117/12.695839.

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Orteu, Jean-José, Dorian Garcia, Laurent Robert, and Florian Bugarin. "A speckle texture image generator." In Speckle06: Speckles, From Grains to Flowers, edited by Pierre Slangen and Christine Cerruti. SPIE, 2006. http://dx.doi.org/10.1117/12.695280.

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Carvalho, O., S. Guyot, L. Roy, M. Benderitter, and B. Clairac. "Speckle: tool for diagnosis assistance." In Speckle06: Speckles, From Grains to Flowers, edited by Pierre Slangen and Christine Cerruti. SPIE, 2006. http://dx.doi.org/10.1117/12.695858.

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Piederrière, Y., F. Boulvert, G. Le Brun, B. Le Jeune, Y. Guern, and J. Cariou. "Speckle and polarization for biomedical applications." In Speckle06: Speckles, From Grains to Flowers, edited by Pierre Slangen and Christine Cerruti. SPIE, 2006. http://dx.doi.org/10.1117/12.695257.

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Yamaguchi, Ichirou, Takashi Ida, Masayuki Yokota, and Koichi Kobayashi. "Material testing by digital speckle correlation." In Speckle06: Speckles, From Grains to Flowers, edited by Pierre Slangen and Christine Cerruti. SPIE, 2006. http://dx.doi.org/10.1117/12.695274.

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Chiang, Fu-pen. "Electron speckle photography: some recent advances." In Speckle06: Speckles, From Grains to Flowers, edited by Pierre Slangen and Christine Cerruti. SPIE, 2006. http://dx.doi.org/10.1117/12.695368.

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Tchvialeva, Lioudmila, Tim K. Lee, Igor Markhvida, David I. McLean, Harvey Lui, and Haishan Zeng. "Geometry influence on polychromatic speckle contrast." In Speckle06: Speckles, From Grains to Flowers, edited by Pierre Slangen and Christine Cerruti. SPIE, 2006. http://dx.doi.org/10.1117/12.695470.

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Angelsky, Oleg, Sergej Yermolenko, Alexander Prydij, Alexander Ushenko, and Yuriy Ushenko. "Polarization structure of biological tissues speckle-images." In Speckle06: Speckles, From Grains to Flowers, edited by Pierre Slangen and Christine Cerruti. SPIE, 2006. http://dx.doi.org/10.1117/12.695261.

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Reports on the topic "Spectre de graisse"

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Letcher, Theodore, Julie Parno, Taylor Hodgdon, Zoe Courville, and Jason Olivier. Applications of the CRREL-Geometric Optics Snow Radiative Transfer (GOSRT) model : incorporating diffraction and simulating detection of buried targets. Engineer Research and Development Center (U.S.), 2025. https://doi.org/10.21079/11681/49728.

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Radiative transfer through a snow surface within the visible and near infrared (NIR) spectra is complicated by the shape, size, and configuration of the snow grains that comprise the snow surface. Ray-tracing and photon-tracking techniques combined with 3D renderings of snow resolved at the microscale have shown promise as a means to directly simulate radiative transfer through snow with no restrictions on the snow grain configuration. This report describes and evaluates the US Army Cold Regions Research and Engineering Laboratory (CRREL) Geometric Optics Snow Radiative Transfer (GOSRT) model.
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Letcher, Theodore, Julie Parno, Zoe Courville, Lauren Farnsworth, and Jason Olivier. A generalized photon-tracking approach to simulate spectral snow albedo and transmittance using X-ray microtomography and geometric optics. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/47122.

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A majority of snow radiative transfer models (RTMs) treat snow as a collection of idealized grains rather than an organized ice–air matrix. Here we present a generalized multi-layer photon-tracking RTM that simulates light reflectance and transmittance of snow based on X-ray micro- tomography images, treating snow as a coherent 3D structure rather than a collection of grains. The model uses a blended approach to expand ray-tracing techniques applied to sub-1 cm3 snow samples to snowpacks of arbitrary depths. While this framework has many potential applications, this study’s effort is focused o
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