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Mesure Des Proprietes Thermo Optiques Aux Temperatures Extremes
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Book Synopsis Mesure des propriétés thermo-optiques aux températures extrêmes by : Nicolas Rambure
Download or read book Mesure des propriétés thermo-optiques aux températures extrêmes written by Nicolas Rambure and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The emission properties of materials are required in many industrial and research developments. This works is devoted to the building-up of experimental means extended to the extreme temperatures (40K-2300K) for the measurement of spectral and total directional emissivities and the further application of these measurements in the determination of the termo-optical properties of solids in the infrared wavelength range.From the means of measurement which we developed, we could measure the directional emissivity of coating until a temperature of 40K for the Planck and Herschell satellites then stainless steel and refractory ceramics for a range of temperature of 300K to 1100K as well as conductor and dielectric until a temperature of 2300K.We determined complex refraction index of the Iron-Nickel alloys from inversion of Fresnel equations and measurements of directional spectral emissivities. We study the second-order phase transformation effects on optical index ; we have seen an important hysteresis on thermo-optical properties of the Iron-Nickel alloys.Lastly, some other studies are presented. Reflectivity measurements at the cryogenic temperatures; Study of the metallurgical modifications by infra-red ellipsometry; Far infra-red for nondestructive testing of artworks.
Book Synopsis Caractérisation des propriétés optiques infrarouges et de la température par désagrégation de mesures directionnelles et spectrales by : Guillaume Fontanilles
Download or read book Caractérisation des propriétés optiques infrarouges et de la température par désagrégation de mesures directionnelles et spectrales written by Guillaume Fontanilles and published by . This book was released on 2009 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: La compréhension de notre environnement nécessite l'étude de phénomènes radiatifs à l'interface surface - atmosphère. Ces échanges d'énergie sont analysés à différents niveaux d'échelle suivant la résolution spatiale du capteur. Cette thèse traite du domaine spectral infrarouge (3-14pm) et s'intéresse aux milieux urbains caractérisés par une forte variabilité spatiale. L'objectif est de caractériser les propriétés optiques (réflectance et émissivité) et les températures de surface à partir de mesures directionnelles et spectrales. Pour cela, une première étape a consisté à modéliser le signal en décrivant chacune de ses composantes radiatives. Un modèle de transfert radiatif, TITAN, a donc été développé. Ce modèle permet également de quantifier les effets directionnels de chacune des composantes du signal. Il a été validé par intercomparaison avec d'autres codes de transfert radiatifs. La suite des travaux s'est portée sur l'analyse de l'agrégation lors d'un changement d'échelle spatiale afin de relier les paramètres de surface définis localement aux valeurs équivalentes déduites des mesures capteurs. Une analyse phénoménologique du modèle d'agrégation a été réalisée à l'aide de plans d'expérience afin d'étudier l'influence de chaque facteur d'entrée du modèle sur les paramètres équivalents. Enfin, la dernière étape s'est attachée à inverser le modèle d'agrégation, i.e. à désagréger, dans le but de retrouver les paramètres intrinsèques des surfaces à partir de données hyperspectrales multi-angulaires. Du fait de la non linéarité de nos équations d'agrégation, notre méthode de désagrégation est basée sur la méthode des moindres carrés optimisée par l'algorithme de Gauss-Newton. Une analyse de sensibilité a permis de fixer les contraintes et les conditions d'applications de notre méthode, comme par exemple la nécessité de connaître la répartition des surfaces avec une précision de 1m. Ainsi, les résultats de ces travaux pourront être utilisés dans les études des îlots de chaleur urbains pour une meilleure estimation des températures de surface.
Book Synopsis Measurement of Thermal Radiation Properties of Solids by : Joseph C. Richmond
Download or read book Measurement of Thermal Radiation Properties of Solids written by Joseph C. Richmond and published by . This book was released on 1963 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acta electronica written by and published by . This book was released on 1973 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Guide to the Preventive Conservation of Photograph Collections by : Bertrand Lavédrine
Download or read book A Guide to the Preventive Conservation of Photograph Collections written by Bertrand Lavédrine and published by Getty Publications. This book was released on 2003 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: A resource for the photographic conservator, conservation scientist, curator, as well as professional collector, this volume synthesizes both the masses of research that has been completed to date and the international standards that have been established on the subject.
Book Synopsis Optical Gyros and Their Application by :
Download or read book Optical Gyros and Their Application written by and published by North Atlantic Treaty Organization Resear Rganization. This book was released on 1999 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book PASCAL. written by and published by . This book was released on 1991 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Optique Spatiale by : André Maréchal
Download or read book Optique Spatiale written by André Maréchal and published by Gordon & Breach Publishing Group. This book was released on 1974 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Temperature written by and published by . This book was released on 1962 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurements in Heat Transfer by : Ernst R. G. Eckert
Download or read book Measurements in Heat Transfer written by Ernst R. G. Eckert and published by Taylor & Francis. This book was released on 1976 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Supercritical Fluids written by E. Kiran and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Supercritical fluids are neither gas nor liquid, but can be compressed gradually from low to high density and they are therefore interesting and important as tunable solvents and reaction media in the chemical process industry. By adjusting the density the properties of these fluids can be customised and manipulated for a given process - physical or chemical transformation. Separation and processing using supercritical solvents such as CO2 are currently on-line commercially in the food, essential oils and polymer industries. Many agencies and industries are considering the use of supercritical water for waste remediation. Supercritical fluid chromatography represents another, major analytical application. Significant advances have recently been made in materials processing, ranging from particle formation to the creation of porous materials. The chapters in this book provide tutorial accounts of topical areas centred around: (1) phase equilibria, thermodynamics and equations of state; (2) critical behaviour, crossover effects; (3) transport and interfacial properties; (4) molecular modelling, computer simulation; (5) reactions, spectroscopy; (6) phase separation kinetics; (7) extractions; (8) applications to polymers, pharmaceuticals, natural materials and chromatography; (9) process scale-up.
Book Synopsis Petroleum Formation and Occurrence by : B.P. Tissot
Download or read book Petroleum Formation and Occurrence written by B.P. Tissot and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 715 pages. Available in PDF, EPUB and Kindle. Book excerpt: Current and authoritative with many advanced concepts for petroleum geologists, geochemists, geophysicists, or engineers engaged in the search for or production of crude oil and natural gas, or interested in their habitats and the factors that control them, this book is an excellent reference. It is recommended without reservation. AAPG Bulletin.
Book Synopsis Accuracy in Spectrophotometry and Luminescence Measurements by : Radu Mavrodineanu
Download or read book Accuracy in Spectrophotometry and Luminescence Measurements written by Radu Mavrodineanu and published by . This book was released on 1973 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Basic Concepts for Simple and Complex Liquids by : Jean-Louis Barrat
Download or read book Basic Concepts for Simple and Complex Liquids written by Jean-Louis Barrat and published by Cambridge University Press. This book was released on 2003-03-27 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presenting a unified approach, this book focusses on the concepts and theoretical methods that are necessary for an understanding of the physics and chemistry of the fluid state. The authors do not attempt to cover the whole field in an encyclopedic manner. Instead, important ideas are presented in a concise and rigorous style, and illustrated with examples from both simple molecular liquids and more complex soft condensed matter systems such as polymers, colloids, and liquid crystals.
Book Synopsis Optical Switching by : Tarek S. El-Bawab
Download or read book Optical Switching written by Tarek S. El-Bawab and published by Springer Science & Business Media. This book was released on 2008-02-11 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applications of optical switching in network elements and communication networks are discussed in considerable depth. Optical circuits, packet, and burst switching are all included. Composed of distinct self-contained chapters with minimum overlaps and independent references. Provides up-to-date comprehensive coverage of optical switching, technologies, devices, systems and networks. Discusses applications of optical switching in network elements and communications networks.
Book Synopsis Analyses Traitant Du Bâtiment Au Canada by :
Download or read book Analyses Traitant Du Bâtiment Au Canada written by and published by . This book was released on 1964 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis From weather observations to atmospheric and climate sciences in Switzerland by : Saskia Willemse
Download or read book From weather observations to atmospheric and climate sciences in Switzerland written by Saskia Willemse and published by vdf Hochschulverlag AG. This book was released on 2016-06-02 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2016 the Swiss Society for Meteorology (Schweizerische Gesellschaft für Meteorologie, SGM) celebrates its 100th anniversary. Compared to other meteorological societies it is not among the oldest ones. Nevertheless, meteorology has gone through such a remarkable evolution in the past 100 years that it is worthwhile to take a look back and recapitulate the developments of both science and SGM – and to reveal their interaction. The idea of this book is to give an overview of what has happened in the field of atmospheric sciences in Switzerland since the first systematic long-term meteorological observations until today.
