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The determination of refractive index distributions for oceanic particulatesRoach, David Michael 09 August 1974 (has links)
The refractive index of particulate matter suspended in seawater
is nonuniform and potentially is an indicator of composition and
origin. A method is described for determining the refractive index
distribution. The method requires the measurement of the volume
scattering function and assumes the total size distribution to be
capable of being reproduced as a linear superposition of hyperbolic
size distributions. The procedure utilizes 40 theoretical volume
scattering functions computed for a range of refractive indices and
particle size distributions. Each one represents a particular combination
of index and distribution. The eight values for the refractive
index (relative to that of water) range from 1.02 to 1.15. The
distribution of refractive index and the total particle size distribution
are determined by finding the best possible representation of the
measured volume scattering function as a linear superposition of the
40 computed functions. An iterative descent method is used to
minimize the error between the measured curve and the superposition
of component scattering functions. If the particle size distribution is
known beforehand, the determination can be restricted to reproduce
the measured distribution to within limits set by a weighting factor.
A similar technique is given for finding the refractive index composition
for phytoplankton populations using measured scattering and
size-distribution data.
Twelve volume scattering functions measured in oceanic
environments (Sargasso Sea, Mediterranean Sea and Baltic Sea) and
three measured in cultured phytoplankton populations (the dinoflaggelate
Amphidinium carterae, and unidentified unicellular alga labeled
T-24, and a centric diatom of the genus Biddulphia) were analyzed.
Determinations for the Mediterranean Sea were performed at a series
of depths extending from near surface to 2OO m. All the determinations
showed the refractive index distributions to be essentially
bimodal with components of refractive indices near 1.05 and 1.15.
The method reproduced measured scattering curves with an average
absolute error less than the experimental uncertainty.
Suggestions for obtaining better results using the same technique
are given. / Graduation date: 1975
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Détermination de la surface équivalente radar d'une cible à partir d'un modèle de mesures multistatiques en champ proche exploitant les matrices de répartition du système de mesureMarie, Anne-Cécile Pasquet, Daniel. Bourdel, Emmanuelle. Mazé-Merceur, Geneviève January 2008 (has links) (PDF)
Reproduction de : Thèse doctorat : Electronique : Cergy-Pontoise : 2008. / Titre provenant de l'écran titre. Bibliogr. p.237-242.
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Modélisation et simulation des résonateurs RF par équations intégrales de frontièreEl Alami, Nabil Bandelier, Bernard. January 2009 (has links) (PDF)
Reproduction : Thèse doctorat : Génie électrique : Cergy-Pontoise : 2008. / Titre provenant de l'écran titre. Bibliogr. p. 109-113.
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Diagnostic et approches ensemblistes à base de zonotopesLalami, Abdelhalim Barbot, Jean-Pierre. January 2009 (has links) (PDF)
Reproduction de : Thèse de doctorat : Automatique : Université de Cergy-Pontoise : 2008. / Titre provenant de l'écran titre. Bibliogr. p.173-182.
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The application of the plane grating to the determination of the index of refraction of a gas with values for air from # 2500 to # 6500 ...Dickey, Robert William, January 1916 (has links)
Thesis (Ph. D.)--Johns Hopkins University, 1916. / Reprinted from the Astrophysical journal, vol. XLV, no. 3, April, 1917.
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Multi-faceted dietary approaches for lowering postprandial glycemia applications to medical foods /Heacock, Patricia Marie, January 2003 (has links)
Thesis (Ph. D.)--Ohio State University, 2003. / Title from first page of PDF file. Document formatted into pages; contains xi, 137 p.: ill. Includes abstract and vita. Advisor: M. Rosita Schiller, Dept. of Human Nutrition and Food Management. Includes bibliographical references (p. 126-137).
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Change of index of refraction of water with change of temperatureOsborn, Frederick Arthur, January 1913 (has links)
Thesis (Ph. D.)--University of Michigan, 1907. / "Reprinted from the Physical Review, n.s., vol. I., no. 3, March, 1913."
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Change of index of refraction of water with change of temperatureOsborn, Frederick Arthur, January 1913 (has links)
Thesis (Ph. D.)--University of Michigan, 1907. / "Reprinted from the Physical Review, n.s., vol. I., no. 3, March, 1913."
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The application of the plane grating to the determination of the index of refraction of a gas with values for air from # 2500 to # 6500 ...Dickey, Robert William, January 1916 (has links)
Thesis (PH. D.)--Johns Hopkins university, 1916. / Reprinted from the Astrophysical journal, vol. XLV, no. 3, April, 1917.
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Discount-Zertifikate im Portfoliomanagement : Aktienmarktschwankungen gezielt nutzen /Hoffleit, André. January 2004 (has links)
Zugl.: Essen, Fachhochsch. für Ökonomie und Management, Diplomarbeit, 2003.
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