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Dissertations / Theses on the topic 'Scattering coefficient'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 June 2025

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1

Fröba, Andreas P., Cristina Botero, Heiko Kremer, and Alfred Leipertz. "Mutual diffusion coefficient in fluids by dynamic light scattering." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-196269.

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Fröba, Andreas P., Cristina Botero, Heiko Kremer, and Alfred Leipertz. "Mutual diffusion coefficient in fluids by dynamic light scattering." Diffusion fundamentals 2 (2005) 70, S. 1-2, 2005. https://ul.qucosa.de/id/qucosa%3A14404.

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3

Baker, Stephen. "Optimal determination of the optical coefficients from scattering media." Thesis, University of Nottingham, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.268794.

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Aslan, Gokhan. "Cepstral Deconvolution Method For Measurement Of Absorption And Scattering Coefficients Of Materials." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/3/12608021/index.pdf.

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Several methods are developed to measure absorption and scattering coefficients of materials. In this study, a new method based on cepstral deconvolution technique is proposed. A reverberation room method standardized recently by ISO (ISO 17497-1) is taken as the reference for measurements. Several measurements were conducted in a physically scaled reverberation room and results are evaluated according to these two methods, namely, the method given in the standard and cepstral deconvolution method. Two methods differ from each other in the estimation of specular parts of room impulse responses

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Davies, Joshua. "NNNLO and all-order corrections to splitting and coefficient functions in deep-inelastic scattering." Thesis, University of Liverpool, 2016. http://livrepository.liverpool.ac.uk/3003745/.

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This thesis describes several calculations of quantities describing the deep-inelastic scattering (DIS) of leptons and hadrons, within the framework of massless perturbative quantum chromodynamics. The third order (NNNLO) contributions to the coefficient functions C⁻ 2,ns, C⁻ L,ns and C⁻ 3,ns, which describe charged-current (W±-exchange) DIS in the linear combination W⁺-W⁻ are presented. Complementing existing results for the W⁺+W⁻ combination, these new results complete the third-order description of charged-current DIS. The results are presented both as compact parametrizations and exact exp

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O'Bree, Terry Adam, and s9907681@student rmit edu au. "Investigations of light scattering by Australian natural waters for remote sensing applications." RMIT University. Applied Sciences, 2007. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20080110.140055.

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Remote sensing is the collection of information about an object from a distance without physically being in contact with it. The type of remote sensing of interest here is in the form of digital images of water bodies acquired by satellite. The advantage over traditional sampling techniques is that data can be gathered quickly over large ranges, and be available for immediate analysis. Remote sensing is a powerful technique for the monitoring of water bodies. To interpret the remotely sensed data, however, knowledge of the optical properties of the water constituents is needed. One

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Botero, Cristina, Heiko Kremer, Andreas P. Fröba, and Alfred Leipertz. "Particle diffusion coefficient and dynamic viscosity in non-ideal liquid mixtures by dynamic light scattering." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-196233.

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Botero, Cristina, Heiko Kremer, Andreas P. Fröba, and Alfred Leipertz. "Particle diffusion coefficient and dynamic viscosity in non-ideal liquid mixtures by dynamic light scattering." Diffusion fundamentals 2 (2005) 67, S. 1-2, 2005. https://ul.qucosa.de/id/qucosa%3A14401.

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Neukermans, Griet. "Les particules en suspension dans les eaux côtières turbides : estimation par mesures optique in situ et depuis l'espace." Thesis, Littoral, 2012. http://www.theses.fr/2012DUNK0406/document.

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Les particules en suspension dans l'eau de mer incluent les sédiments, le phytoplancton, le zooplancton, les bactéries, les virus et des détritus. Ces particules sont communément appelés matière en suspension (MES). Dans les eaux côtières, la MES peut parcourir de longues distances et être transportée verticalement à travers la colonne d'eau sous l'effet des vents et des marées favorisant les processus d'advection et de resuspension. Ceci implique une large variabilité spatio-temporelle de MES et quasiment impossible à reconstituer à travers les mesures traditionnelles des concentrations de ME

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Синашенко, Оксана Володимирівна, Оксана Владимировна Синашенко, Oksana Volodymyrivna Synashenko, Зінаїда Миколаївна Макуха, Зинаида Николаевна Макуха, Zinaida Mykolaivna Makukha, Іван Юхимович Проценко, Иван Ефимович Проценко, and Ivan Yukhymovych Protsenko. "The Influence of Electrons Scattering at Grain Boundary and at Surface on Resistivity and Thermal Coefficient of Resistance of Nanocrystalline Silver Films." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/34900.

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The paper describes the method of separation of the share of both surface and grain boundary electron scattering on resistance and thermal coefficient of resistance (TCR). The calculation of ρd, βd and gb, βgb values, which correspond to the surface and grain boundary electron scattering respectively, and their comparative analysis were done based on experimental data of thermal and size dependence of specific resistance (ρ) and TCR (β) for nanocrystalline silver films. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/34900

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11

SHTREPI, LOUENA. "Measurement traceability of sound scattering coefficient of diffusive surfaces used in room acoustics and virtual acoustical environments." Doctoral thesis, Politecnico di Torino, 2015. http://hdl.handle.net/11583/2608163.

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The best concert halls take benefit not only from the basic room shape but also from the corrugations of the walls. These diffusive surfaces are responsible for energy mixing, energy extraction from geometrical paths, for filling gaps and increasing reflections density in the impulse response. Hence, performance spaces are characterized by a complex sound field, due to the presence of absorptive and diffusive surfaces. The acoustic properties of these surfaces are characterized based on laboratory standardized measurements. Despite this, no sufficiently satisfactory databases exist. Thus, acou

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Musser, Joseph Alan. "Novel instrumentation for a scattering independent measurement of the absorption coefficient of natural waters, and a new diffuse reflector for spectroscopic instrumentation and close cavity coupling." Diss., Texas A&M University, 2006. http://hdl.handle.net/1969.1/4736.

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We report results for the development of a flow-through integrated cavity absorption meter (ICAM.) Absorption measurements have been made with 2% or less change in the signal in the presence of up to 10 m-1 of scattering in the medium. The operating range of the ICAM ranges from 0.004 m-1 to over 40 m-1 of absorption. This range allows one to use a single instrument to measure the absorption from sediment laden rivers out to the cleanest of ocean waters. Further, the ICAM signal has been shown to be independent of the flow rate and turbulence in the medium. In addition we report the developmen

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Gandhi, Shikha. "Investigation Of The Effect Of Low Molecular Weight Peg On Lysozyme Interactions In Solution Using Composition Gradient Static Light Scattering." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1204599050.

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Kang, Yuhong. "Calculations and Measurements of Raman Gain Coefficients of Different Fiber Types." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/30878.

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Fiber Raman amplification using the transmission line is a promising technology to increase the repeater distance as well as the capacity of the communication systems. Because of the growing importance of fiber Raman amplification, it is desired to predict the magnitude and shape of the Raman gain spectrum from the doping level and refractive index profiles of different fiber designs. This thesis develops a method to predict the Raman gain coefficients and spectra for a pure silica core fiber and two different types of GeO2-doped silica fibers given their index profiles. An essential featur

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15

Nwanosike, Quinta M. "Effect of divalent cations and solubilizers in apoferritin and gamma D-crystallin solutions nucleation, crystallization and light scattering studies /." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/31736.

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Thesis (Ph.D)--Chemical Engineering, Georgia Institute of Technology, 2010.<br>Committee Chair: Ronald Rousseau; Committee Co-Chair: Athanassios Sambanis; Committee Member: Amyn Teja; Committee Member: Athanasios Nenes; Committee Member: Ingeborg Schmidt-Krey. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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Böhme, Christiane. "Decay rates and scattering states for wave models with time-dependent potential." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2011. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-70939.

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Viele Problemstellungen der Naturwissenschaften führen zur Betrachtung von nichtlinearen Wellengleichungen. Dabei ist von großem Interesse, ob zu vorgegebenen kleinen Daten Lösungen eindeutig existieren und ob diese stetig von den Daten abhängen. Hilfsmittel für diese Probleme sind Aussagen über lineare Wellengleichungen. In der vorliegenden Arbeit werden lineare Klein-Gordon Gleichungen, also Wellengleichungen mit Potentialterm, mit zeitabhängiger Masse bzgl. des Verhaltens ihrer Lösungen untersucht. Von speziellem Interesse sind Resultate mit Bezug auf verallgemeinerte Energieerhaltung und s

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Bartling, Karsten. "Apoferritin Crystallization in relation to Eye Cataract." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/14111.

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Protein crystallization is significant in both biotechnology and biomedical applications. In biotechnology, crystallization is essential for determining the structure of both native and synthesized therapeutically important proteins. It can also be used as a final purification step and as a stable form for protein storage. With regard to biomedical systems, protein crystallization appears to be involved in the development and manifestation of certain human diseases. In particular, there exists evidence that L-rich ferritin crystals are involved in Hereditary Hyperferritinemia Cataract Synd

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Liu, Yajing. "Measurement of tissue optical properties during mechanical compression using swept source optical coherence tomography." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/32395.

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Laser-based photo-thermal therapies can provide minimally-invasive treatment of cancers. Their effectiveness is limited by light penetration depth in tissue due to its highly scattering properties. The highly disordered refractive index distribution in tissue leads to multiple-scattering of incident light. It has been hypothesized that mechanical compression has a great potential to enhance the capabilities of laser therapy by inducing localized water transport, decreasing the refractive index mismatch, and decreasing the scattering coefficient of tissue. To better understand this process, we

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Geraldelli, Wender. "Desenvolvimento e aplicação de um sistema de raios X dispersivo em energia para determinação do coeficiente de atenuação linear e do perfil de espalhamento de neoplasias mamárias." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/59/59135/tde-22072013-105636/.

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As propriedades de espalhamento de raios X e atenuação de tecidos mamários normais (adiposo e fibroglandular), neoplásicos (benigno e maligno) e vários materiais tecido-equivalente (nylon, poliacetato, polimetilmetacrilato (PMMA), água, músculo-equivalente, osso-equivalente e adiposo-equivalente) foram determinados usando um sistema de raios X dispersivo em energia (SRXDE). O SRXDE consistiu de um tubo de raios X com anodo de tungstênio operando a 60kVp, um goniômetro e dois detectores: um detector de telureto de cádmio (CdTe), posicionado a 7 graus com relação ao feixe incidente usado para de

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20

Lehtonen, Lauri Kalevi. "Elucidating the nature of bonding in mechanical pulps." Diss., Available online, Georgia Institute of Technology, 2005, 2004. http://etd.gatech.edu/theses/available/etd-11252004-163945/.

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Thesis (Ph. D.)--Institute of Paper Science and Technology, Georgia Institute of Technology, 2005.<br>Alan Rudie, Committee Member ; Derek Page, Committee Member ; Douglas Coffin, Committee Member ; Kari Ebeling, Committee Member ; Timothy Patterson, Committee Member. Includes bibliographical references (p. 222-231).

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Kefi, Monia. "Coefficients d'attenuation et facteurs de diffusion atomique des elements 46 a 54 dans leur region k." Paris 6, 1988. http://www.theses.fr/1988PA066326.

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Mesure des coefficients d'attenuation des elements de numero atomique 46 a 54 dans le domaine 15 a 45 kev. Determination des parametres de la loi de variation empirique du coefficient d'attenuation en fonction de la longueur d'onde du rayonnement. Determination des facteurs de diffusion anomale vers l'avant, en utilisant la relation de dispersion

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22

Burda, Jan. "Návrh a měření parametrů akustických difúzních prvků." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-377009.

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This work focuses on the issue of acoustic diffusers. The introductory chapter describes the necessary theory of the sound distribution through enclosed space. Acoustic fields are also described. A description of the different diffusion element types and theirs design methods follows. It focuses mainly on design, which uses pseudo-random mathematical sequences. The aim of the work is to produce several types of acoustic diffusors and to verify their diffusion properties by means of measurements. The work uses the AFMG Reflex to simulate the diffusion properties of the proposed elements. Furthe

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23

Borsali, Redouane. "Etude theorique du comportement dynamique des melanges ternaires de polymere en solution : etude experimentale par spectroscopie rayleigh quasi-elastique." Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13138.

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L'etude d'un melange ternaire de polymeres en solution semidiluee presente deux modes de relaxation. Mise en evidence par diffusion de lumiere quasi-elastique de deux processus de diffusion: le premier, lent, correspond au mouvement relatif des deux polymeres; le second, rapide, correspond au mouvement cooperatif du reseau physique forme par les deux polymeres

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Mariaud, Christian. "Etude des systèmes binaires galactiques à très haute energie avec HESS et HESS-II." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLX030/document.

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En astronomie gamma, les systèmes binaires sont des objets stellaires impliquant une étoile massive et un objet compact, le plus léger des deux en orbite autour de l’autre. Ils émettent de façon régulière à haute et très haute énergie (E > 100 GeV) et peuvent être détectés par le réseau de télescopes H.E.S.S.. Malgré leur faible nombre, ils présentent une grande diversité de comportement et sont caractérisés par une modulation de flux dépendant de la position de l’objet compact. 2 systèmes binaires sont étudiés : LS 5039 et PSR B1259–63, en effet un jeu de données conséquent est disponible

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Hargreaves, T. J. "Acoustic diffusion and scattering coefficients for room surfaces." Thesis, University of Salford, 2000. http://usir.salford.ac.uk/14819/.

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This project concerns quantifying the diffuseness of sound reflections from surfaces by means of a diffusion coefficient. Afthough it is now acknowledged that diffuse reflections are important in determining sound fields within rooms, no standardised diffusion coefficient currently exists. Definition of a universal coefficient would permit comparison of different surfaces and aid the understanding of diffusion. It would also benefit diffuser designers and room acoustic computer modellers. Previously proposed diffusion parameters for room surfaces are investigated and new ones developed. One ap

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De, Silva Vashista C. "Core-Shell Based Metamaterials: Fabrication Protocol and Optical Properties." Thesis, University of North Texas, 2017. https://digital.library.unt.edu/ark:/67531/metadc1062904/.

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The objective of this study is to examine core-shell type plasmonic metamaterials aimed at the development of materials with unique electromagnetic properties. The building blocks of metamaterials under study consist of gold as a metal component, and silica and precipitated calcium carbonate (PCC) as the dielectric media. The results of this study demonstrate important applications of the core-shells including scattering suppression, airborne obscurants made of fractal gold shells, photomodification of the fractal structure providing windows of transparency, and plasmonics core-shell with a ga

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Jeyakumaran, R. "Some scattering and sloshing problems in linear water wave theory." Thesis, Brunel University, 1993. http://bura.brunel.ac.uk/handle/2438/5390.

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Using the method of matched asymptotic expansions the reflection and transmission coefficients are calculated for scattering of oblique water waves by a vertical barrier. Here an assumption is made that the barrier is small compared to the wavelength and the depth of water. A number of sloshing problems are considered. The eigenfrequencies are calculated when a body is placed in a rectangular tank. Here the bodies considered are a vertical surface-piercing or bottom-mounted barrier, and circular and elliptic cylinders. When the body is a vertical barrier, the eigenfunction expansion method is

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28

Daniels, Timothy Vaughn Clegg Thomas B. "Spin-correlation coefficients and phase-shift analysis for p+3He elastic scattering." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2009. http://dc.lib.unc.edu/u?/etd,2225.

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Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2009.<br>Title from electronic title page (viewed Jun. 26, 2009). "... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Physics and Astronomy." Discipline: Physics and Astronomy; Department/School: Physics and Astronomy. On t.p., 3 in title is superscript.

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Mapingire, Hezekia. "Clebsch-Gordan coefficients and electron-phonon scattering in the valence band of Ge." Diss., University of Pretoria, 2017. http://hdl.handle.net/2263/63287.

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The abstract contains mathematical symbols and do not display correctly. It can be read in the document attached.<br>Dissertation (MSc)--University of Pretoria, 2017.<br>Physics<br>MSc<br>Unrestricted

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Kuniyil, S. "Expansion coefficients in polyelectrolytes: investigation of polymethacrylic acid solutions by light scattering and viscosity." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 1985. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/3273.

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Ould-Kaddour, Latifa. "Etude par diffusion de la lumiere des systemes ternaires : polymere-polymere-solvant." Strasbourg 1, 1988. http://www.theses.fr/1988STR13006.

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Etude experimentale de plusieurs systemes ternaires, comportant deux polymeres differents en solution par diffusion de la lumiere. L'analyse de l'intensite diffusee a vecteur d'onde nul a permis de caracteriser les proprietes thermodynamiques et plus particulierement le parametre d'interaction entre les deux polymeres

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Weser, Robert. "Erfassung und Auswertung von Ultraschallechosignalen zur Charakterisierung konzentrierter disperser Stoffsysteme." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-158895.

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Die Charakterisierung von Dispersionen hat das Ziel, die Zusammensetzung und den Zustand von partikelhaltigen Stoffgemischen zu erfassen. Vor allem der Zustand der dispersen Phase (Partikel), der wiederum von der Größe und der Konzentration der Partikel bestimmt wird, ist in diesem Zusammenhang von besonderer Bedeutung. Neben optischen Verfahren, wie der Laserbeugung oder der Lichtstreuung, ist die Anwendung von akustischen Methoden vor allem dann sinnvoll, wenn die zu untersuchenden dispersen Stoffgemische opak und optische Methoden nur noch eingeschränkt (nach Verdünnung) anwendbar sind. Der

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Pandini, D. "STUDI PER LA MODELLIZZAZIONE DELLA RIFLETTANZA SPETTRALE NEGLI STRATI PITTORICI." Doctoral thesis, Università degli Studi di Milano, 2012. http://hdl.handle.net/2434/168396.

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Nowadays a lot of physical techniques are available in order to have information about an historical painting. They are able to know which chemical elements are present in the paint layer, or they are also able to show the pattern under the colored layer, but there is not a non-destructive technique able to study the artist technique of painting or the historical pigments used in order to obtain the particular nuance we can observe. In this thesis we study an evolution of the VIS-NIR-spectroscopic technique with these goals. In particular we start from a preliminary historical study of the a

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Parupudi, Arun Kumar. "Demonstration of scale-down dynamic light scattering and determination of osmotic second virial coefficients for proteins." Master's thesis, Mississippi State : Mississippi State University, 2007. http://sun.library.msstate.edu/ETD-db/theses/available/etd-11092007-112135/.

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Lawrence, Heather. "MODÉLISATION DE L'EFFET DE LA RUGOSITÉ DE SURFACE ET DE LA LITIÈRE DES COUVERTS NATURELS SUR LES OBSERVATIONS MICRO-ONDES PASSIVES - APPLICATION AU SUIVI GLOBAL DE L'HUMIDITÉ DU SOL PAR LA MISSION SMOS." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2010. http://tel.archives-ouvertes.fr/tel-01024075.

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Dans le cadre de la mission spatiale SMOS (Soil Moisture and Ocean Salinity), nous présentons dans cette thèse une nouvelle approche numérique de modélisation du calcul de l'émissivité et du coefficient bi-statique de systèmes forestiers sol-litière en Bande L. Le système sol-litière est représenté par deux couches diélectriques 3D comportant des interfaces rugueuses, une démarche qui n'apparait pas actuellement dans la littérature. Nous validons notre approche pour une seule couche en comparant les simulations de l'émissivité avec celles produites par la méthode des moments et des données exp

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Maess, Johannes Thomas. "Attenuation models for material characterization." Thesis, Available online, Georgia Institute of Technology, 2004:, 2004. http://etd.gatech.edu/theses/available/etd-10252004-031615/unrestricted/maess%5Fjohannes%5Ft%5F200412%5Fmast.pdf.

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Thesis (M.S.)--Civil and Environmental Engineering, Georgia Institute of Technology, 2005.<br>Laurence J. Jacobs, Committee Chair ; Reginald DesRoches, Committee Member ; Jianmin Qu, Committee Member. Includes bibliographical references.

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Cassiani-Ingoni, Lionel. "Etude d'un hydrogel, copolymere (mma-co-vp) utilise comme precurseur de lentilles de contact : caracterisation du gel, diffusion et activite du lysozyme dans la matrice." Paris 6, 1987. http://www.theses.fr/1987PA066299.

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Barret, Laurie-Anne. "Influence des tensioactifs dans la cristallisation du complexe photosynthétique RC-LH1-pufX de Rhodobacter blasticus." Phd thesis, Université d'Avignon, 2013. http://tel.archives-ouvertes.fr/tel-01017895.

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Ce projet vise à étudier, par une approche pluridisciplinaire, l'influence des la cristallisation des protéines membranaires (PM) en prenant pour protéine modèle le complexe photosynthétique RC-LH1-pufX de Rhodobacter blasticus. Des cristaux de ce complexe avaient été obtenus en présence de dodécyl-!-maltoside (DDM) et avaient diffractés à 8 Å de résolution. L'objectif final est de pouvoir améliorer, de façon rationnelle, la qualité des cristaux du complexe RC-LH1-pufX grâce à une meilleure compréhension des mécanismes mis en jeu. Dans un premier temps, trois tensioactifs dérivés du DDM ont ét

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Germond, Jeffrey. "Structural Characterization and Thermoelectric Performance of ZrNiSn Half-Heusler Compound Synthesized by Mechanical Alloying." ScholarWorks@UNO, 2010. http://scholarworks.uno.edu/td/1197.

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Thermoelectric (TE) ZrNiSn samples with a half-Heusler atomic structure were synthesized by mechanical alloying (MA) and consolidation by either Spark Plasma Sintering (SPS) or hot pressing (HP). X-Ray diffraction patterns of as milled powders and consolidated samples were compared and analyzed for phase purity. Thermal conductivity, electrical conductivity and Seebeck coefficient are measured as a function of temperature in the range 300 K to 800 K and compared with measurements reported for high temperature solid state reaction synthesis of this compound. HP samples, compared to SPS samples,

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Chang, Yongbin. "The Concept of Collision Strength and Its Applications." Thesis, University of North Texas, 2004. https://digital.library.unt.edu/ark:/67531/metadc4530/.

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Collision strength, the measure of strength for a binary collision, hasn't been defined clearly. In practice, many physical arguments have been employed for the purpose and taken for granted. A scattering angle has been widely and intensively used as a measure of collision strength in plasma physics for years. The result of this is complication and unnecessary approximation in deriving some of the basic kinetic equations and in calculating some of the basic physical terms. The Boltzmann equation has a five-fold integral collision term that is complicated. Chandrasekhar and Spitzer's approaches

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Pham, Thanh Tung. "Multiscale modelling and simulation of slip boundary conditions at fluid-solid interfaces." Phd thesis, Université Paris-Est, 2013. http://tel.archives-ouvertes.fr/tel-00980155.

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In most applications concerning a fluid flowing over a solid surface, the no-slip velocity condition was widely used because it is simple and produces the results in agreement with experiments. However, this dynamical boundary condition is not appropriate when the flow under consideration is at a micro or nano length scale.In order to model this effect at the macroscopic scale, the Navier boundary conditions have been introduced, with the slip length as a parameter. When the fluid is a gas, this length is related to the tangential momentum accommodation coefficient (TMAC) and the mean free pat

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Sajjad, Naheed. "Bistatic scattering of electromagnetic waves from rough surface by using second order twoscale model : application to sea and bare soil surface." Brest, 2011. http://www.theses.fr/2011BRES2049.

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The estimation of radar cross section (RCS) of randomly rough surfaces is essential for designing terrain and sea surface remote sensing systems. The particular problem of wave scattering at low grazing angles is of great interest because of its importance for the low-altitude/long-range radar surveillance, target tracking, communication and navigation systems operating at low grazing conditions above the rough surface. The radar cross section from a rough surface becomes very small at grazing incidence, since most part of the incident power is scattered around the specular direction (dependin

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Smith, Heather. "Geometric Acoustic Modeling of the LDS Conference Center." Diss., CLICK HERE for online access, 2004. http://contentdm.lib.byu.edu/ETD/image/etd591.pdf.

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Ben, Khadra Slahedine. "Etude de la signature EM bistatique d'une surface maritime hétérogène avec prise en compte des phénomènes hydrodynamiques." Thesis, Brest, 2012. http://www.theses.fr/2012BRES0089/document.

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Le travail réalisé dans cette thèse s'intègre globalement dans le cadre de I'observation et la surveillance maritime.Afin d'améliorer la reconnaissance et I'identification automatique de cibles noyées dans un environnement perturbé, nous avons opté à la fusion de différentes connaissances et informations concernant une scène observée à distance par des capteurs micro-ondes. En effet, plusieurs phénomènes physiques co-existent et perturbent la propagation des ondes électromagnétiques au-dessus d'une surface et notamment au-dessus d'une surface maritime hétérogène (la réfraction due aux gradient

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Neubauer, Svetlana. "Untersuchungen von inter- und intramolekularen Interaktionen des globalen Regulators AbrB und dessen Antirepressors AbbA." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2014. http://dx.doi.org/10.18452/16887.

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Aus den frühen Bindungsstudien des globalen Regulators AbrB mit der ausgedehnten phyC-Promotorregion von Bacillus amyloliquefaciens FZB45 konnte ein mehrstufiger kooperativer Bindungsprozess abgeleitet werden. Dabei verlangt die AbrB-vermittelte Repression von phyC nach Integrität zweier großer Bindungsstellen, ABS1 und ABS2, die 162 bp voneinander entfernt liegen. In der vorliegenden Arbeit wurden die ersten Echtzeitkinetiken zur DNA-AbrB-Interaktion mittels der Oberflächenplasmonresonanz (SPR) gemessen und analysiert. AbrB zeigte hohe Affinitäten zu den 40 bp langen Oligonukleotiden, die de

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Chen, Lu-Yen, and 陳律言. "Influence of relative humidity on particles' scattering coefficient." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/65409124982209468364.

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博士<br>國立臺灣大學<br>環境工程學研究所<br>92<br>Size distribution and scattering coefficients of particles are significantly influenced by relative humidity (RH). The scattering coefficient change caused by particles’ size change is especially important for environments with high relative humidity. In order to quantify the effects of RH change on scattering coefficients of particles, the hygroscopic growth of particles and size change occurring in scattering measurement instrument, integrating nephelometer, are investigated in this study. Hygroscopic growth of particles of different sizes and t

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Chen, Endom, and 陳英堂. "Aerosol Distribution and Scattering Coefficient Measuring in Taiwan Area." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/07868505602992134754.

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碩士<br>國立中央大學<br>環境工程學系<br>84<br>The scattering and/or absorption of atmospheric aerosols to the solar radiation play an important role in the global change as well as in the global weather change. Atmospheric aerosols were collected at Chungli and Tainan each for a month from fall to winter in 1995. A scanning mobility particle sizer ( TSI model 3934 SMPS ) and an aerosol spectrometer ( PMS model PCASP- X ) were used to measure aerosol size distribution, and an integrating Nephelometer wa

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Chia-LunLiu and 劉家綸. "Numerical Calculation and Analysis of A Plate Crack Scattering Coefficient." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/85833803323296627502.

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碩士<br>國立成功大學<br>系統及船舶機電工程學系碩博士班<br>101<br>Time Reversal Method (TRM) is now widely used in under water exploration, medical testing and on the structure of non-destructive testing. In theory Iterative Time Reversal Process and Decomposition of Time Reversal Operator (D.O.R.T.) appears to solve many issues, simply are not resolved by utilizing the time reversal method. Further expand the time reversal theory application scope. While using this process for time reversal, the cumbersome process of iterative experiments can be eliminated directly by the mathematical derivation obtained from the it

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Tsai, Chiung-Cheng, and 蔡炯禎. "The measuring of Tainan spring aerosol size distribution and scattering-coefficient." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/95376109314767758757.

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碩士<br>國立中央大學<br>環境工程學系<br>85<br>Abstract The scattering and/or absorption of atmospheric aerosols to solar radiation play an important role in direct radiative forcing of climate. Atmospheric aerosols were collected at Tainan for nearly two month in the springtime of 1997. An aerosol spectrometer (PMS model PCASP- X) was used to measure aerosol size distribution, and an integrating nephelometer (TSI model 3563) was set up to acquire aerosol

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Lin, 秀姿, and 林秀姿. "Characteristics of atmospheric Aerosols in Taiwan- aerosol light-scattering coefficient aerosol size distribution." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/98874546037218891291.

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碩士<br>國立中央大學<br>環境工程學系<br>86<br>The light scattering of atmospheric aerosols are important in radiative forcing in global warming. Among factors affecting aerosol light-scattering coefficient (ssp), aerosol size distribution has been known to be a major one. Although ssp is an integrating effect from all sizes of aerosols, a revelation of significant sizes in determining ssp is crucial in evaluating the control measures for atmospheric visibility. In the present study, a system cons

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