Dissertations / Theses on the topic 'Diffuse'
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Heidenreich, Ralf, Dirk Schmidt, Andreas Böhme, Torsten Moczigemba, and Peter Fleischer. "Diffuse Staubemissionen." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-62943.
Full textLaouar, Tayeb. "Contribution à l'étude de l'approximation diffuse : auto-adaptativité en éléments diffus." Compiègne, 1996. http://www.theses.fr/1996COMPD891.
Full textBailey, Amanda. "Probing the diffuse interstellar medium with diffuse interstellar bands." Thesis, Keele University, 2014. http://eprints.keele.ac.uk/1244/.
Full textHibbins, Robert E. "Diffuse interstellar bands." Thesis, University of Nottingham, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.307820.
Full textIbbett, R. N. "Infrared diffuse reflectance spectroscopy." Thesis, University of East Anglia, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382895.
Full textCernicharo, José. "Matière diffuse et molécules interstellaires." Phd thesis, Université Paris-Diderot - Paris VII, 1988. http://tel.archives-ouvertes.fr/tel-00725658.
Full textSchöps, Andreas. "Diffuse Röntgenstreuung an binären Legierungen." [S.l.] : [s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=973255552.
Full textBehrooz, Ali. "Multiplexed fluorescence diffuse optical tomography." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/50401.
Full textCernicharo, José. "Matière diffuse et molécules interstellaires." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37612561n.
Full textSchöps, Andreas. "Diffuse Röntgenstreuung an binären Legierungen." [S.l. : s.n.], 2003. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB11612013.
Full textCernicharo, José. "Matiere diffuse et molecules interstellaires." Paris 7, 1988. http://www.theses.fr/1988PA077028.
Full textLines, Richard Stephen George. "The application of a diffuse field reciprocity relation to a new set of diffuse fields." Thesis, University of Cambridge, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.609644.
Full textSchröder, Marie. "Die diffuse postoperative Peritonitis. Wertigkeit diagnostischer Parameter und Prognose im Vergleich zur ambulant erworbenen diffusen Peritonitits." Lübeck Zentrale Hochschulbibliothek Lübeck, 2010. http://d-nb.info/1002838207/34.
Full textEveritt, David Lewis. "Imaging of tissue-like media with diffuse light : analysis and optimization of a diffuse photon tomography /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2002. http://uclibs.org/PID/11984.
Full textSavignat, Jean-Michel. "Approximation diffuse Hermite et ses applications." Phd thesis, École Nationale Supérieure des Mines de Paris, 2000. http://pastel.archives-ouvertes.fr/pastel-00577930.
Full textTrabelsi, Slim. "Services spontanés sécurisés pour l'informatique diffuse." Phd thesis, Télécom ParisTech, 2008. http://pastel.archives-ouvertes.fr/pastel-00004140.
Full textRandeberg, Lise Lyngsnes. "Diagnostic applications of diffuse reflectance spectroscopy." Doctoral thesis, Norwegian University of Science and Technology, Faculty of Information Technology, Mathematics and Electrical Engineering, 2005. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-691.
Full textThis thesis covers a wide field of applications, with an emphasis on applications of reflectance spectroscopy for diagnostic purposes. Reflectance spectroscopy in the visible part of the spectrum has been proved to be a valuable tool in a variety of applications including e. g. port-wine stain diagnostics, diagnostics of liver pathology, neonatal jaundice and age determination of bruises for forensic applications.
Villanueva, Walter. "Diffuse-Interface Simulations of Capillary Phenomena." Doctoral thesis, Stockholm : Kungl. tekniska högskolan, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4402.
Full textLi, Ang. "Diffuse optical tomography with multiple priors /." Thesis, Connect to Dissertations & Theses @ Tufts University, 2005.
Find full textAdvisers: David A. Boas; Yaacov Shapira. Submitted to the Dept. of Physics. Includes bibliographical references (leaves 113-126). Access restricted to members of the Tufts University community. Also available via the World Wide Web;
Graneau, P. Neal. "Ion dynamics of diffuse vacuum arcs." Thesis, University of Oxford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306534.
Full textMiles, Janet R. "Diffuse interstellar absorption and emission bands." Thesis, University of Nottingham, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359869.
Full textMezger, Markus. "Diffuse Röntgenstreuung an Ni-Pd-Legierungen." [S.l. : s.n.], 2004. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB11482135.
Full textButcher, Melissa Rachelle. "Diffuse Nutrient Pollution from Residential Catchments." Scholar Commons, 2014. https://scholarcommons.usf.edu/etd/5194.
Full textSchröder, Marie [Verfasser]. "Die diffuse postoperative Peritonitis : Wertigkeit diagnostischer Parameter und Prognose im Vergleich zur ambulant erworbenen diffusen Peritonitits / Marie Schröder." Lübeck : Zentrale Hochschulbibliothek Lübeck, 2010. http://d-nb.info/1002838207/34.
Full textVan, der Klis Marije Maroeska Isis Poley. "Ag-Mn: Diffuse Röntgenstreuung unter streifendem Einfall /." Zürich : ETH, 2006. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=16551.
Full textDrosback, Meredith Marie. "Line profiles in the diffuse interstellar bands." Diss., Connect to online resource, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3239452.
Full textLaMarr, John Henry. "Diffuse light correction for field reflectance measurements." Diss., The University of Arizona, 2001. http://hdl.handle.net/10150/279899.
Full textManning, James David. "Directional diffuse reflection from a polygon emitter." Thesis, University of Hull, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.445284.
Full text吳子皎 and Tze-kau Ng. "A study of diffuse galactic gamma radiation." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1989. http://hub.hku.hk/bib/B31209397.
Full textHe, Lian. "NONCONTACT DIFFUSE CORRELATION TOMOGRAPHY OF BREAST TUMOR." UKnowledge, 2015. http://uknowledge.uky.edu/cbme_etds/33.
Full textPanagiotou, C. "Information theoretic regularization in diffuse optical tomography." Thesis, University College London (University of London), 2011. http://discovery.ucl.ac.uk/1310436/.
Full textMalone, John Philip. "Computer-aided diagnosis of diffuse lung disease." Thesis, University of Bristol, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.440143.
Full textNg, Tze-kau. "A study of diffuse galactic gamma radiation /." [Hong Kong : University of Hong Kong], 1989. http://sunzi.lib.hku.hk/hkuto/record.jsp?B12584289.
Full textLieberman, Daniel Howard Shepherd J. E. "Detonation interaction with sharp and diffuse interfaces /." Diss., Pasadena, Calif. : Caltech, 2006. http://resolver.caltech.edu/CaltechETD:etd-11172005-092205.
Full textPritchard, Jonathan Robin Kamionkowski Marc Kamionkowski Marc. "Extracting the cosmic history from diffuse backgrounds /." Diss., Pasadena, Calif. : California Institute of Technology, 2007. http://resolver.caltech.edu/CaltechETD:etd-05292007-112654.
Full textZonios, George I. 1968. "Diffuse reflectance spectroscopy of human colon tissue." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/29636.
Full textIncludes bibliographical references (p. 129-134).
Diffuse reflectance spectroscopy can provide quantitative biochemical and morphological information for the analysis of biological tissue epithelium and the detection of precancerous lesions. To investigate this, diffuse reflectance spectra were collected from adenomatous colon polyps (cancer precursors) and normal colonic tissue of patients undergoing colonoscopy. To analyze the data, an analytical model was developed based on the diffusion of light in tissue. The model was formulated in terms of the absorption and scattering properties of tissue. In the case of absorption, hemoglobin was identified as the major absorber of light, and scattering was modeled as a homogeneous of collection spherical microparticles using Mie scattering theory. The validity and accuracy of the analytical model was tested and validated on a physical tissue model (phantom) composed of polystyrene beads and hemoglobin and it was found that it is suitable for application to the tissue data. Four parameters were obtained by analyzing the tissue data using the model: hemoglobin concentration, hemoglobin oxygen saturation, effective scatterer density and size. Normal and adenoma tissue sites exhibited differences in hemoglobin concentration and effective scatterer size, in agreement with other studies which employ standard methods. These results demonstrate that diffuse reflectance can be used to obtain tissue biochemical and morphological information in vivo.
by George I. Zonios.
Ph.D.
Codron, Clemence. "La surveillance diffuse : entre Droit et Norme." Thesis, Lille 2, 2018. http://www.theses.fr/2018LIL2D002/document.
Full textThe purpose of this research is to understand how diffuse surveillance fits into the evolution of legal concepts of privacy and personal data. Contrary to the abundant literature on the subject of surveillance, it is not a questionhere of highlighting the need to find a balance between surveillance in its security dimension and the protection of privacy and data, as a fundamental freedom recognized by French and European institutions. This search for a balance between security and freedom must necessarily be overcome to understand the phenomenon of diffuse surveillance. Surveillance is no longer just a search for information about a potentially dangerous individual. Rather, it is a continuation of what Hannah Arendt calls the « crisis of culture ». Diffuse surveillance is even oneof the features of contemporary culture dominated by fear, consumption and alienation by technology. Having become the new accepted social norm, the diffuse surveillance deinstitutes the right of the personal data and the protection of the private life. Gradually, it also deinstitutes the Law to profit from the economic liberalism that it carries within it
Zouaoui, Judy. "Tomographie optique diffuse multispectrale résolue en temps." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAY071/document.
Full textIn medical imaging, the ability to accurately retrieve and quantify the composition of turbid media is challenging and would enable to diagnose some diseases or to better study physiological processes. Diffuse optical tomography (DOT) is an attractive medical imaging technique which permits to probe in depth using near-infrared light and to reconstruct in three dimensions the composition of biological tissues non-invasively, non-ionizing and with potentially high specificity. To obtain endogenous chromophore (oxy- and desoxy-hemoglobin) features in the depth of a highly scattering medium, a multiwavelength time domain optical setup combined to a three-dimensional reconstruction algorithm was developed. Experimental measurements were conducted in reflectance geometry by illuminating a perturbed medium (with a heterogeneity) with a picosecond laser and by collecting, for several wavelengths and multi-positions, the backscattered light via two fibers connected to two dedicated detectors and coupled to a time-correlated single photon counting system. The data processing of these time-resolved measurements and those of a known reference medium was performed by supposing that the propagation of light is governed by the diffusion approximation and using a method based on Mellin-Laplace transform. Numerical and phantom experiments on series of objects similar to biological media demonstrate that this technique has the potential to give quantitative medical images. We have highlighted a correct quantification for the less absorbing objects at 10 mm depth while underestimation results at deeper depths and higher absorptions. Furthermore, the multimodal imaging brings improvements in quantification in depth and thus it can be a good opportunity to DOT for its future clinical applications
HIMPENS, CATHERINE. "Syndrome des ongles jaunes et lymphangiopathie diffuse." Lille 2, 1989. http://www.theses.fr/1989LIL2M240.
Full textMakda, Nazir Ahmed Adam. "Ultra-diffuse galaxy candidatesin stripe 82 clusters." Master's thesis, Faculty of Science, 2019. https://hdl.handle.net/11427/31737.
Full textSharp, Charles Michael Francis. "Clinical outcomes in diffuse parenchymal lung disease." Thesis, University of Bristol, 2017. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.723507.
Full textTurner, Kathryn Grace. "Ecological genomics of invasive thistle, diffuse knapweed." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/54317.
Full textScience, Faculty of
Botany, Department of
Graduate
Powell, Robert David. "Diffuse knapweed (Centaurea diffusa) : reproductive thresholds, population ecology and responses to the introduction of the buprestid beetle Sphenoptera jugoslavica." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/29265.
Full textLand and Food Systems, Faculty of
Graduate
Gupta, Anjali. "The Study of Diffuse Soft X-Ray Background." Scholarly Repository, 2009. http://scholarlyrepository.miami.edu/oa_dissertations/240.
Full textBen, Mokhtar Sonia. "Intergiciel Sémantique pour les Services de l'Informatique Diffuse." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2007. http://tel.archives-ouvertes.fr/tel-00469457.
Full textVoarino, Philippe. "Lumière diffuse et microsphères multicouches : calculs et réalisations." Phd thesis, Aix-Marseille 3, 2004. http://tel.archives-ouvertes.fr/tel-00083581.
Full textLa deuxième partie de notre travail a consisté en la réalisation des micro-composants. Pour cela nous avons entièrement mis au point une technologie de pulvérisation par faisceau d'ions (IBS), pour fabriquer des couches minces optiques métalliques ou diélectriques. Pour revêtir les microsphères, nous les animons d'un mouvement aléatoire conféré par une membrane vibrante. Les résultats montrent que notre procédé fonctionne très correctement pour une fabrication en série, ouvrant ainsi la porte à des poudres optiques interférentielles. Ensuite le problème de la caractérisation est traité à l'aide d'un diffusomètre laser et d'un spectro-diffusomètre, pour tenter de mesurer une sphère isolée ou des collections de microsphères.
De façon générale, ce travail trouve des applications dans la couleur et cosmétique, la visualisation, la furtivité et les télécom, le biomédical...
Zibetti, Stefano. "Diffuse stellar components in galaxies and galaxy clusters." Diss., lmu, 2004. http://nbn-resolving.de/urn:nbn:de:bvb:19-30331.
Full textHaran, Terence. "Short-Wave Infrared Diffuse Reflectance of Textile Materials." Digital Archive @ GSU, 2008. http://digitalarchive.gsu.edu/phy_astr_theses/5.
Full textHao, Biao. "Measuring diffuse x-ray reflectivity from rough interfaces." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=24010.
Full textLong, William F. (William Frank) 1971. "Optical tomography by time-resolved diffuse reflectance measurements." Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=37618.
Full textInitially, the project focussed on quantification in samples where scattering and absorber concentration were variable. Using time resolved reflectance measurements, a series of statistical descriptors of the photon time distributions were calculated. Stepwise multilinear regression was used to formulate linear models from optimal linear combinations of the descriptors. It was found that the scattering coefficient, absorption coefficient and apparent particle diameter could be estimated to within 9, 10 and 7% of their reference values respectively.
An array of radial reflectance measurements on layered scattering/absorbing samples was made to obtain information sensitive to sub-surface changes in absorption. As an initial approach to depth-resolved quantification, classical tomographic reconstruction techniques were used. However, due to the ambiguity of the reconstruction, extremely poor estimates of the sub-surface absorption resulted. Chemometric methods were then employed for enhanced quantification. By using stepwise multilinear regression with time-resolved data, the absorption coefficient in the top region of a sample could be estimated to within 2%. However, errors in the absorption coefficient estimations deep within a sample remained high.
Further improvements in sample quantification were made by linearizing the reconstruction problem. By using a priori information about sample composition in upper regions, subsequent calibrations for lower regions were directed. Estimations of the absorption coefficient deep within a sample with hierarchical locally weighted calibration were obtainable at greater than 50% accuracy. This represented a 20% improvement at all sample depths over stepwise multilinear regression.
Confocal illumination and detection optics was also used for discriminating highly scattered photons from light, which follows a geometric path through a sample. When confocal optics were used together with information from the rising edge of time distribution, little enhancement in quantification was observed in comparison to an integrated signal. This important finding demonstrates that the confocal optical detection should be considered when imaging in scattering/absorbing media.