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Dissertations / Theses on the topic 'Interferometrisch'

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1

Schulz, Markus [Verfasser]. "Interferometrisch messender faseroptischer Sensor mit mechanisch oszillierender Sonde / Markus Schulz." Kassel : Universitätsbibliothek Kassel, 2015. http://d-nb.info/1074027191/34.

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2

Goh, Jason Y. L. "Interferometric confocal imaging techniques." Thesis, University of Nottingham, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.246410.

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3

Loebel, Nicolas G. "Singlemode fiber interferometric biosensors /." Thesis, Connect to this title online; UW restricted, 1998. http://hdl.handle.net/1773/8026.

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4

Desai, Salil P. (Salil Pradip) 1978. "Mirau interferometric computer microvision." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/87312.

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5

McMurtry, Stefan. "Multipoint humidity sensing based upon a multiplexed fibre optic sensor." Thesis, University of Kent, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310209.

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6

Bonifant, William W. Jr. "Interferometric synthetic aperture sona processing." Thesis, Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/14995.

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7

Wells, Conrad. "Phase shifting interferometric imaging ellipsometer." Diss., The University of Arizona, 1999. http://hdl.handle.net/10150/289008.

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A novel imaging ellipsometer has been developed; the phase shifting interferometric imaging ellipsometer (PSIIE) is the first ellipsometer to use phase-shifting interferometry for data acquisition. The only moving part in the system is a solid state PZT. The PSIIE uses a polarization interferometer, followed by a Wollaston prism, to obtain simultaneously, samples of the S and P polarization component interferograms. Interferogram. phase yields the ellipsometric parameter, Δ, while the fringe modulation yields the tangent of the ellipsometric parameter Ψ. The instrument can perform multiple wav
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8

Akhavan, Leilabady P. "Monomode fibre optic interferometric sensors." Thesis, University of Kent, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383964.

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9

Hathaway, Mark. "Low coherence interferometric displacement sensing." Thesis, University of Kent, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.443783.

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10

Wang, Dong Ning. "White light interferometric sensor systems." Thesis, City University London, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.283188.

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11

Loh, Nin C. (Nin Chin) 1977. "High-resolution micromachined interferometric accelerometer." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/89324.

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12

Farhoud, Maya S. (Maya Sami). "Interferometric lithography and selected applications." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/10457.

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13

Liu, Zenghai. "Interferometric filter planar Doppler velocimetry." Thesis, Cranfield University, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.539402.

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This thesis describes the development of a Mach-Zehnder interferometric filter based planar Doppler velocimetry (MZI-PDV) flow measurement technique. The technique uses an entirely new optical system, an unbalanced MZI incorporating glass blocks for wavefront-matching, to replace the iodine cell currently used in conventional PDV. The free spectral range of the interferometric filter can be selected by adjusting the optical path difference of the MZI. This allows the velocity measurement range, sensitivity and resolution to be varied. This system offers no restricts to the choice of laser wave
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14

Lu, Zenghai. "Interferometric filter-based planar Doppler velocimetry." Thesis, Cranfield University, 2008. http://dspace.lib.cranfield.ac.uk/handle/1826/7151.

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This thesis describes the development of a Mach-Zehnder interferometric filter based planar Doppler velocimetry (MZI-PDV) flow measurement technique. The technique uses an entirely new optical system, an unbalanced MZI incorporating glass blocks for wavefront-matching, to replace the iodine cell currently used in conventional PDV. The free spectral range of the interferometric filter can be selected by adjusting the optical path difference of the MZI. This allows the velocity measurement range, sensitivity and resolution to be varied. This system offers no restricts to the choice of laser wave
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15

Brenner, David William. "Design of a digital interferometric demodulator." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Services, 1994. http://handle.dtic.mil/100.2/ADA288895.

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16

Gens, Rüdiger. "Quality assessment of SAR interferometric data." Hannover : Fachrichtung Vermessungswesen der Univ, 1998. http://deposit.ddb.de/cgi-bin/dokserv?idn=95607121X.

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17

Primeau, Brian Christopher. "INTERFEROMETRIC CHARACTERIZATION OF TEAR FILM DYNAMICS." Diss., The University of Arizona, 2011. http://hdl.handle.net/10150/202971.

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The anterior refracting surface of the eye is the thin tear film that forms on the surface of the cornea. When a contact lens is on worn, the tear film covers the contact lens as it would a bare cornea, and is affected by the contact lens material properties. Tear film irregularity can cause both discomfort and vision quality degradation. Under normal conditions, the tear film is less than 10 microns thick and the thickness and topography change in the time between blinks. In order to both better understand the tear film, and to characterize how contact lenses affect tear film behavior, two in
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18

Seong, Kibyung. "Optical Metrology for Transmission Interferometric Testing." Diss., The University of Arizona, 2008. http://hdl.handle.net/10150/194698.

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The degree of sophistication and customization available in optical components has been driven by advances in lens design and fabrication. The optical testing of these components remains a challenge. In particular, the precision measurement of the properties of transmissive optics such as transmitted wavefront, surface figure, and index of refraction continues to require new methodology tools.A method of surface figure measurement is described based on the transmitted wavefront of an optical element obtained from a Mach-Zehnder interferometer. Given known values for the refractive index and
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19

Blatcher, Stephen. "Holographic interferometric analysis of femoral prostheses." Thesis, Queen Mary, University of London, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336439.

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20

Springer, S. C. "Complementarity and correlation in interferometric schemes." Thesis, Queen's University Belfast, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.517047.

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21

Cashmore, Matthew Thomas Dolphin. "Interferometric metrology using reprogrammable binary holograms." Thesis, Durham University, 2013. http://etheses.dur.ac.uk/7769/.

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Interferometric methods for surface metrology have been widely used for many years due to their speed, accuracy and versatility. It is frequently necessary however to produce a known comparison reference surface to minimise the optical path difference and hence enhance the dynamic range. An alternative to this is to use a computer generated hologram to act as the reference wave, or to correct a spherical reference wave to match a highly aspheric optic in order to achieve a null test. This thesis shall present a novel method of producing such holograms through the use of a binary ferroelectric
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22

Yupapin, P. V. P. "Optical pressure sensors using interferometric techniques." Thesis, City University London, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357418.

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23

Forrester, Neil T. "Surface reconstruction from interferometric ISAR data." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/91809.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, February 2014.<br>Cataloged from PDF version of thesis. "November, 2013."<br>Includes bibliographical references (pages [137]-139).<br>A frequently useful technique in the interpretation of Inverse Synthetic Aperture Radar (ISAR) images is to construct a three dimensional (3D) model of the object being imaged. Generally, such models are constructed manually by an analyst based on a series of radar images and whatever other information is available. However, using multistatic radar
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24

Gay, Etienne. "Coherent interferometric imaging in fluid dynamics." Thesis, Université de Paris (2019-....), 2019. http://www.theses.fr/2019UNIP7029.

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La présente recherche vise à développer des algorithmes d’imagerie par interférométrie cohérente (CINT) pour localiser des sources et des réflecteurs dans des applications impliquant des écoulements. L’imagerie CINT s’est avérée efficace et statistiquement stable dans des milieux inhomogènes au repos, où les techniques classiques d’imagerie, telles que la migration de Kirchhoff (KM), peuvent éventuellement échouer en raison de leur manque de robustesse statistique. Nous visons à étendre ces méthodes aux milieux en mouvement inhomogènes, car elles concernent l’aéroacoustique, l’acoustique atmos
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25

Kissinger, Thomas. "Range-resolved optical interferometric signal processing." Thesis, Cranfield University, 2015. http://dspace.lib.cranfield.ac.uk/handle/1826/9598.

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The ability to identify the range of an interferometric signal is very useful in interferometry, allowing the suppression of parasitic signal components or permitting several signal sources to be multiplexed. Two novel range-resolved optical interferometric signal processing techniques, employing very different working principles, are theoretically described and experimentally demonstrated in this thesis. The first technique is based on code-division multiplexing (CDM), which is combined with single-sideband signal processing, resulting in a technique that, unlike prior work, only uses a singl
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26

Fagehi, Raied Ahmed. "Interferometric assessment of contact lens wettability." Thesis, Glasgow Caledonian University, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.688303.

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27

Gonçalves, Júnior Armando Albertazzi. "Medição de microdeslocamento tridimensionais e deformações pela holografia interferometrica autocalibrada." reponame:Repositório Institucional da UFSC, 1989. https://repositorio.ufsc.br/xmlui/handle/123456789/157613.

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Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 1989.<br>Made available in DSpace on 2016-01-08T16:29:25Z (GMT). No. of bitstreams: 1 79526.pdf: 3148569 bytes, checksum: c6e023fb7c027290b9678d9e831422ff (MD5) Previous issue date: 1989<br>Este trabalho desenvolve, analisa e experimenta dois novos artifícios para melhorar a qualidade da medição de deslocamentos e deformações pela holografia interferométrica. O método da autocalibração consiste em uma sistemática desenvolvida para simplificar a taref
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28

Natarajan, Iniyan. "Probabilistic methods for radio interferometry data analysis." Doctoral thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/27243.

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Probability theory provides a uniquely valid set of rules for plausible reasoning. This enables us to apply this mathematical formalism of probability, also known as Bayesian, with greater flexibility to problems of scientific inference. In this thesis, we are concerned with applying this method to the analysis of visibility data from radio interferometers. Any radio interferometry observation can be described using the Radio Interferometry Measurement Equation (RIME). Throughout the thesis, we use the RIME to model the visibilities in performing the probabilistic analysis. We first develop th
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29

Kim, Byungki. "Miniaturized Diffraction Based Interferometric Distance Measurement Sensor." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5044.

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In this thesis, new metrology hardware is designed, fabricated, and tested to provide improvements over current MEMS metrology. The metrology system is a micromachined scanning interferometer having a sub-nm resolution in a compact design. The proposed microinterferometer forms a phase sensitive diffraction grating with interferometric sensitivity, while adding the capability of better lateral resolution by focusing the laser to a smaller spot size. A detailed diffraction model of the microinterferometer was developed to simulate the device performance and to suggest the location of photo dete
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30

Camps, Carmona Adriano José. "Aplication of Interferometric Radiometry to Earth Observation." Doctoral thesis, Universitat Politècnica de Catalunya, 1996. http://hdl.handle.net/10803/6885.

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La tesis contiene en primer lugar un estudio de las técnicas de interferometria radiometrica, con énfasis en las causas de error y su impacto en las características del sensor. A continuación se proponen y comparan varias técnicas de calibracion basadas en la inyección de ruido.<br/><br/>Un aspecto notable de la tesis consiste en el desarrollo de técnicas de reconstrucción de la imagen radiometrica adaptadas a la geometría del sensor miras propuesto por la agencia espacial europea (esa).<br/><br/>La tesis incluye tambien el diseño de un prototipo a escala reducida de radiometro interferometric
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31

Terborg, Roland A. "Lens-free interferometric microscope for transparent materials." Doctoral thesis, Universitat Politècnica de Catalunya, 2018. http://hdl.handle.net/10803/663758.

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As health systems fight against epidemics and infectious diseases, new forms of diagnostics need to be developed in order to meet the growing demand for services, often in locations without the necessary infrastructure. An emerging solution to this problem is point of care (POC) devices since they can provide rapid diagnostics without the need for specialized personnel or complex infrastructures. In this thesis, we show the development of a POC platform for the rapid early detection of infection, in particular Sepsis, a whole-body inflammatory reaction with high mortality rates. The main comp
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32

Lee, Woei Ming. "Optical trapping : optical interferometric metrology and nanophotonics." Thesis, St Andrews, 2010. http://hdl.handle.net/10023/882.

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33

Murali, Sukumar. "Analysis of an Interferometric Stokes Imaging Polarimeter." Diss., The University of Arizona, 2010. http://hdl.handle.net/10150/194148.

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Estimation of Stokes vector components from an interferometric fringe encoded image is a novel way of measuring the State Of Polarization (SOP) distribution across a scene. Imaging polarimeters employing interferometric techniques encode SOP information in a single image in the form of fringes. The lack of moving parts and the use of a single image eliminates the problems of conventional polarimetry - vibration, spurious signal generation due to artifacts, beam wander and the need for registration routines. However, interferometric polarimeters are limited by narrow band pass operation and sho
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34

Taylor, John R. "Interferometric experiments towards advanced gravitational wave detectors." Thesis, University of Glasgow, 2009. http://theses.gla.ac.uk/727/.

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In 1905, Einstein postulated that the speed of light is not only finite, but that its speed in vacuum is a universal limit that no process can exceed. The Theory of General Relativity later extended this concept to include gravitational interactions, and Eddington's timely measurements of stellar positions during a solar eclipse in 1919 confirmed that gravity's effect on spacetime is both real and entirely physical -- not merely a mathematical curiosity. With the death of Newton's notions of universal time and instantaneous gravity came the idea of gravitational waves as distortions in space-t
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35

Barclay, Philip John. "Interferometric Synthetic Aperture Sonar Design and Performance." Thesis, University of Canterbury. Electrical and Computer Engineering, 2006. http://hdl.handle.net/10092/1170.

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Synthetic aperture sonar (SAS) has become a well developed imaging technique for imaging shallow water environments. Aperture synthesis provides high along-track resolution imagery, with range independent resolution. However, mapping of the seafloor using traditional SAS is limited to a two-dimensional surface. To provide the third dimension (height), an interferometric synthetic aperture sonar (InSAS) is formed, comprising of two or more vertically displaced hydrophone arrays. Each of the interferometric receiver datasets are processed using standard SAS algorithms, with motion compensati
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36

Austin, Dane R. "High-resolution interferometric diagnostics for ultrashort pulses." Thesis, University of Oxford, 2010. http://ora.ox.ac.uk/objects/uuid:03ff32ea-c82a-4a42-9c6b-11e42ddb1e67.

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I present several new methods for the characterisation of ultrashort pulses using interferometry. A generalisation of the concatenation algorithm for spectral shearing interferometry enables interferograms taken at multiple shears to be combined. This improves the precision of the reconstructed phase in the presence of detector noise, and enables the relative phase between disjoint spectral components to be obtained without decreasing the spectral resolution. The algorithm is applied to experimental data from two different implementations of spectral shearing interferometry for ultrashort opti
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37

Cameron, Charles B., and Steven Lurie Garrett. "Recovering signals from optical fiber interferometric sensors." Thesis, Monterey, California. Naval Postgraduate School, 1991. http://hdl.handle.net/10945/28494.

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38

Oag, Thomas J. D. "Interferometric wavefront sensing for extreme adaptive optics." Thesis, Durham University, 2004. http://etheses.dur.ac.uk/3101/.

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Adaptive optics is concerned with the correction of phase distortions in wavefronts which degrade the quality of images produced by optical systems. It was originally developed for both astronomy and the military, where the Earth's atmosphere causes distortions, although other uses are now being developed. As ground based telescopes become increasingly large the size and complexity of adaptive optics systems also increase, creating "extreme adaptive optics”. This thesis deals with such an adaptive optics system. A novel self referenced phase shifting interferometer based on a liquid crystal (L
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39

Farahi, F. "Fibre optic interferometric thermometers and multiplexed systems." Thesis, University of Kent, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382854.

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40

Bullock, Richard John. "Motion compensation for aircraft-borne interferometric SAR." Thesis, University College London (University of London), 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.408420.

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41

Duncan, David P. "Motion Compensation of Interferometric Synthetic Aperture Radar." Diss., CLICK HERE for online access, 2004. http://contentdm.lib.byu.edu/ETD/image/etd477.pdf.

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42

Sumner, Roger C. "An interferometric method for evaluating holographic materials /." Online version of thesis, 1990. http://hdl.handle.net/1850/10884.

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43

Bertran, Ortiz Ana. "ScanSAR-to-stripmap interferometric observations of Hawaii /." May be available electronically:, 2007. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.

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44

Zeakes, Jason S. "Extrinsic Fabry-Perot Interferometric hydrogen gas sensor." Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-06162009-063525/.

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45

Bell, Christopher Robert. "Multi-lined Interferometric Stellar Oscillation Spectrometer (MISOS)." Thesis, Imperial College London, 1991. http://hdl.handle.net/10044/1/46672.

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46

Kavehpour, Hossein Pirouz. "An interferometric study of spreading liquid films." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/29635.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2003.<br>Includes bibliographical references (p. 201-212).<br>Moving contact line problems involving polymeric materials and other complex fluids are encountered in many applications such as coating flows, gravity-driven drainage, and spin-coating operations. Viscous, capillary, inertial and gravitational forces can all be important in these flows depending on the scale and speed of the spreading process. In this research, a number of benchmark problems involving moving contact lines of viscous Newtonian a
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47

Faes, Daniel Moser. "An interferometric view of hot star disks." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/14/14131/tde-16122015-201029/.

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Optical long baseline interferometry was recently established as a technique capable of resolving stars and their circumstellar environments at the milliarcsecond (mas) resolution level. This high-resolution opens an entire new window to the study of astrophysical systems, providing information inaccessible by other techniques. Astrophysical disks are observed in a wide variety of systems, from galaxies up to planetary rings, commonly sharing similar physical processes. Two particular disk like systems are studied in the thesis: (i) B He-rich stars that exhibits magnetic fields in order of kG
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48

Liao, Yi. "Next generation heavily multiplexed interferometric sensor arrays." Thesis, University of Southampton, 2013. https://eprints.soton.ac.uk/353971/.

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Permanent reservoir monitoring (PRM) is an emerging market with significant potential in the oil and gas industrials, where data from several thousand pressure and acceleration sensors are used to monitor the condition of an underground hydrocarbon reservoir. Fibre-optic sensor arrays offer significant potential benefits, and highly efficient multiplexing and telemetry architectures can combine the several thousand sensors onto just a few fibres, the fewer the better. This study presents a novel, high performance interferometric fibre-optic sensor array using a distributed erbium doped fibre a
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49

Ding, Binlei. "Development of High Resolution Interferometric Inertial Sensors." Doctoral thesis, Universite Libre de Bruxelles, 2021. https://dipot.ulb.ac.be/dspace/bitstream/2013/317532/4/content.pdf.

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The gravitational wave observatory and many other large ground-based instruments need to be decoupled from the Earth’s ever-present motion to improve their performance. In such scenarios, inertial sensors which measure the ground motion are necessary, especially those with a high resolution and a large dynamic range. This thesis aims to develop high performance inertial sensors which outperform the commercially available ones in terms of resolution and dynamic range in low frequency down to 0.01 Hz.Inertial sensors essentially consist of two parts: a single-degree-of-freedom mechanism and a tr
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50

Edgar, Gerard. "A precision interferometric optical heterogeneity mapping system." Thesis, University of Aberdeen, 1990. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU602263.

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The object of this work was to design and build an instrument for mapping optical heterogeneities in fused silica blocks, with a sensitivity at least an order of magnitude better than any system currently available (prompted by a requirement of the Stanford Gravity Probe B project). The sources of inhomogeneities and the environment for containing these blocks to achieve measurements at this level are discussed with the implications for the instrument design. After a review of homogeneity testing methods, it was decided to develop an instrument system for use with several measurement methods.
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