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Thèses sur le sujet « Applied Physic »

Auteur : Grafiati

Publié le 9 mars 2023

Mis à jour le 31 juillet 2025

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1

PAROZZI, ELISABETTA GIULIA. "Design and optimization of a variable momentum secondary beamline for NP06/ENUBET project." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2023. https://hdl.handle.net/10281/403336.

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La precisione sulla misura della sezione d’urto del neutrino elettronico e muonico è limitata principalmente dalla conoscienza del flusso iniziale. La precisione attuale è dell’ordine del 5 − 10%. Il progetto ENUBET (Enhanced NeUtrino Beam from kaon Tagging) propone una nuova facility in grado di monitorare il fascio di neutrini prodotto da un fascio secondario di mesoni taggando il leptone corrispondente emesso nello stesso decadimento di pro- duzione. Questo tipo di studio pone diverse restrizioni sul fascio secondario, dal quale dipende soprattutto la distribuzione in energia dei neutrini c

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Hershberger, Geoffrey D. "APPLIED TEMPERAMENT." UKnowledge, 2018. https://uknowledge.uky.edu/music_etds/126.

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The following document was created in order to promote intonation consensus in ensembles and to better facilitate learning in educational settings. Non-keyboard instruments provide musicians an opportunity to make nearly infinitesimal adjustments to pitch while performing; this creates difficulties for students and challenges even the most seasoned professionals. Non-keyboard musicians struggle their whole lives to play in tune, and even when one knows exactly where they want to place a pitch, technical difficulties can foul any musician's performance. When performing solo, the musician must c

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3

Elf, Patric. "Radiation effects on wide bandgap semiconductor devices." Thesis, KTH, Tillämpad fysik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-283320.

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Gallium nitride (GaN) based high-electron-mobility transistors (HEMTs) are used in a wide variety of areas, such as 5G, automotive, aeronautics/astronautics and sensing elds ranging from chemical, mechanical, biological to optical applications. Owing superior material properties, the GaN based HEMTs are especially useful in harsh operation environments e.g. in the combustion engine, exhaust, space, and medical instruments where the reliability and resilience are highly demanded. In this thesis the e ect of proton irradiation on the GaN HEMTs as well as the possible incorporation of them in bio

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Schneider, Claus M., Daniel E. Bürgler, Peter M. Oppeneer, et al. "Quantitative characterization of nanoscale polycrystalline magnets with electron magnetic circular dichroism." nature publishing group, 2014. http://hdl.handle.net/2237/20835.

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5

Sugden, Kate E. P. "Nonequilibrium statistical physics applied to biophysical cellular processes." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/4339.

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The methods of statistical physics are increasingly being employed in a range of interdisciplinary areas. In particular, aspects of complex biological processes have been elucidated by bringing the problems down to the level of simple interactions studied in a statistical sense. In nonequilibrium statistical physics, a one dimensional lattice model known as the totally asymmetric simple exclusion processes (TASEP) has become prominent as a tool for modelling various cellular transport processes. Indeed the context in which the TASEP was first introduced (MacDonald et. al., 1968) was to model r

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6

Ariane, Mostapha. "The discrete multi-physics method applied to biomechanics." Thesis, University of Birmingham, 2018. http://etheses.bham.ac.uk//id/eprint/8048/.

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In this thesis, a fully Lagrangian approach called the Discrete Multi-Physics is adopted and applied to biomechanics. The Discrete Multi-Physics combines the Smoothed Particle Hydrodynamics, the Mass and Spring Model and the Discrete Element Method in a common particle-based framework. In the Discrete Multi-Physics, high deformations and contact of solid structures (e.g. valve’s leaflets during closing phase or colloid contact) can be easily modelled. In biological valve simulations, for instance, we were able to account for repeated opening-closing cycles and to introduce an agglomeration alg

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Corker, Lloyd A. "Probabilistic methods applied to fluctuating systems." Doctoral thesis, University of Cape Town, 2012. http://hdl.handle.net/11427/10320.

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In this work the hierarchical structure of three diverse stochastic systems is studied by investigating the probability densities of their scale-dependent measures across various scales. In the first system studied, velocity increments are used to investigate the order of complexity and disorder of wind turbulence. The second system investigates the disorders of skeletal muscles and the nervous system by considering the fluctuation of electric potentials of skeletal muscles. The last system studied is a non-physical system where price increments are used to classify the financial markets in te

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Blickenstaff, Jacob Arin. "A framework for effective physics education applied to secondary and university physics courses /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2004. http://uclibs.org/PID/11984.

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9

Wierst, Pauline Manninne Anna van. "Paradoxes of the applied infinite : infinite idealizations in Physics." Doctoral thesis, Scuola Normale Superiore, 2018. http://hdl.handle.net/11384/86153.

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10

Anderson, Jesse Charles. "The Intrinsic Variability in the Water Vapor Saturation Ratio Due to Turbulence." Thesis, Michigan Technological University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10684480.

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<p> The water vapor concentration plays an important role for many atmospheric processes. The mean concentration is key to understand water vapor's effect on the climate as a greenhouse gas. The fluctuations about the mean are important to understand heat fluxes between Earth's surface and the boundary layer. These fluctuations are linked to turbulence that is present in the boundary layer. Turbulent conditions are simulated in Michigan Tech’s multiphase, turbulent reaction chamber, the Π chamber. Measurements for temperature and water vapor concentration were recorded under forced Ra

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Jimenez, Nicholas M. "Implementation of Magneto Optical Kerr Effect Microscopy for the Observation of Magnetic Domain Structure in Thin Films." Thesis, California State University, Long Beach, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=13425872.

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<p> The home built Magneto-Optical Kerr Effect (MOKE) microscope was implemented to probe the magnetic domain patterns of thin film samples. A CCD camera is introduced to the existing MOKE rotation measurement setup. The images captured by the camera are used to analyze the change in the magnetic domain patterns by the Kerr effect. Using 6.5× zoom lens and 1.33× extension tube attached to the CCD camera, the size of the sample down to a 1.02mm by 0.75 mm area can be viewed in the image capture. Magnetic hysteresis loop is first measured to investigate the magnetic switching behavio

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Baker, Terence Lee. "Magnetic Force Microscopy of Permalloy Thin Films on Nanosphere Templates." Thesis, California State University, Long Beach, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=13426819.

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<p> Magnetic Force Microscopy (MFM) is a viable method of analyzing magnetic characteristics of ferromagnetic nanostructure materials. The nanosphere template produces a variety of magnetic domains for the endeavor of advancing technological applications such as nanomagnetic logic and magnetoplasmonic nanoparticles. These nanomagnetic applications demand very specific magnetic characteristics, so the profiling of different magnetic domains using magnetic force microscopy is essential. During this work, we studied the magnetic domains that came from permalloy material on nanosphere templates. W

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13

Platt, John Daniel. "Dynamics and Materials Physics of Fault Rupture and Glacial Processes." Thesis, Harvard University, 2015. http://nrs.harvard.edu/urn-3:HUL.InstRepos:14226054.

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This thesis focuses on two main topics, the physics governing how faults rapidly weaken during an earthquake and the thermal and mechanical structure of ice stream shear margins. The common theme linking these two projects is the desire to understand how the complicated interactions between stress and temperature control deformation and failure. All of the problems in this thesis are attacked using a combination of analytic and numerical methods, and the interplay between these two approaches provides a powerful way to understand the different physical balances that dominate in different regim

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14

Gleason, Russell. "Nanosphere lithography applied to magnetic thin films." Thesis, California State University, Long Beach, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=1524199.

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<p> Magnetic nanostructures have widespread applications in many areas of physics and engineering, and nanosphere lithography has recently emerged as promising tool for the fabrication of such nanostructures. The goal of this research is to explore the magnetic properties of a thin film of ferromagnetic material deposited onto a hexagonally close-packed monolayer array of polystyrene nanospheres, and how they differ from the magnetic properties of a typical flat thin film. The first portion of this research focuses on determining the optimum conditions for depositing a monolayer of nanospheres

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Stevenson, Samual Wilfred. "Hartree-Fock peturbation theory applied to lithium." Thesis, Queen's University Belfast, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235825.

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16

Gullman-Strand, Johan. "Turbulence and scalar flux modelling applied to separated flows." Doctoral thesis, Stockholm : Department of Mechanics, Royal Institute of Technology, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-92.

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17

Gonoskov, Arkady. "Ultra-intense laser-plasma interaction for applied and fundamental physics." Doctoral thesis, Umeå universitet, Institutionen för fysik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-84245.

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Rapid progress in ultra-intense laser technology has resulted in intensity levels surpassing 1022 W/cm2, reaching the highest possible density of electromagnetic energy amongst all controlled sources available in the laboratory. During recent decades, fast growth in available intensity has stimulated numerous studies based on the use of high intensity lasers as a unique tool for the initiation of nonlinear behavior in various basic systems: first molecules and atoms, then plasma resulting from the ionization of gases and solids, and, finally, pure vacuum. Apart from their fundamental importanc

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18

Keating, Christopher M. "Using Strong Laser Fields to Produce Antihydrogen Ions." Thesis, Portland State University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10846288.

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<p> We provide estimates of both cross section and rate for the stimulated attachment of a second positron into the (1<i>s</i><sup>2</sup> <sup> 1</sup><i>S<sup>e</sup></i>) state of the <i>H¯ </i><sup>+</sup> ion using Ohmura and Ohmura’s (1960 Phys. Rev. 118 154) effective range theory, Reiss’s strong field approximation (1980 Phys. Rev. A 22, 1786), and the principle of detailed balancing. Our motivation for producing <i>H¯</i><sup>+</sup> ion include its potential to be used as an intermediate state in bringing antihydrogen to ultra-cold (sub-mK) temperatures required

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19

Piedra, Patricio G. "Radiative Transfer and Spectrophotometric Characterization of Mineral Dust Optics on Photovoltaic Cells." Thesis, University of Nevada, Reno, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10681519.

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<p> Efficiency of solar cells is degraded by deposition of mineral dust as well as other particles, and experiments reveal that losses can be significant (up to ~85%) depending on various factors. However, little is known about the role of light scattering and absorption in reducing optical transmission to the solar cell semiconductor. This dissertation first develops a fundamental model of optical losses due to particle-on-substrate scattering for light propagating into the forward direction. We use discrete dipole approximation with surface interaction (DDA-SI), which is a numerical solution

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20

Yamamoto, Kiyoshi. "Optical theory applied to thin films." Case Western Reserve University School of Graduate Studies / OhioLINK, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=case1061392348.

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Ammon, Martin Matthias. "Gauge/Gravity Duality applied to Condensed Matter Systems." Diss., lmu, 2010. http://nbn-resolving.de/urn:nbn:de:bvb:19-117739.

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22

Doost, Mark. "Resonant state expansion applied to open optical systems." Thesis, Cardiff University, 2014. http://orca.cf.ac.uk/61445/.

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This thesis presents work that I have done with Egor Muljarov and Wolfgang Langbein in order to extend an existing perturbation theory for open systems describable by a scalar equation to 3D systems which cannot be reduced to effectively lower dimensions. This perturbation theory is called the resonant-state expansion (RSE). The RSE is derived from properties of the dyadic tensor Green’s function (GF) of the unperturbed system written in terms of resonant states (RSs). Hence to extend the RSE it was necessary for us to derive this spectral form of the GF in terms of normalised RSs for arbitrar

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23

Lloyd, Christopher James. "Diffusing wave spectroscopy applied to material analysis and process control." Thesis, Open University, 1997. http://oro.open.ac.uk/54375/.

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Diffusing Wave Spectroscopy (DWS) was studied as a method of laboratory analysis of submicron particles, and developed as a prospective in-line, industrial, process control sensor, capable of near real-time feedback. No sample pre-treatment was required and measurement was via a noninvasive, flexible, dip in probe. DWS relies on the concept of the diffusive migration of light, as opposed to the ballistic scatter model used in conventional dynamic light scattering. The specific requirements of the optoelectronic hardware, data analysis methods and light scattering model were studied experimenta

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24

Adams, Rory Montague. "Flux corrected transport applied to hydrodynamics for heavy ion collisions." Doctoral thesis, University of Cape Town, 2008. http://hdl.handle.net/11427/6521.

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Includes abstract.<br>Includes bibliographical references (p.145-154).<br>This thesis presents FCTHydro, a ROOT package, and its application to hydrodynamic simulations through the packages RelHydro and Nonideal xy. These packages aim to provide the broader heavy ion collision community with access to hydrodynamic simulation software which is now accessible from within the primary analysis framework, ROOT. Tests are performed and show how well the high-order, monotone, conservative, positivity preserving routines within FCTHydro simulate hydrodynamic systems with harsh initial conditions. RelH

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25

Smith, Lorcan Stuart Peter Stillwell. "Bond graph modelling of physical systems." Thesis, University of Glasgow, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337440.

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Numanovic, Kerim. "Advanced Clinical Data Processing: A Predictive Maintenance Model for Anesthesia Machines." Thesis, KTH, Tillämpad fysik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-283323.

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The maintenance of medical devices is of great importance to ensure that the devices are stable, well-functioning, and safe to use. The current method of maintenance, which is called preventive maintenance, has its advantages but can be problematic both from an operators’ and a manufacturers’ side. Developing a model that will predict failure in anesthesia machines can be of great use for the manufacturer, the customers, and the patients. This thesis sets to examine the possibility of creating a predictive maintenance model for anesthesia machines by utilizing device data and machine learning.

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Westacott, Robin E. "Direct free energy calculations applied to clathrate hydrates." Thesis, University of Reading, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.283787.

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Zimmermann, Julia. "Dissociation properties of biomolecules under an externally applied force." Diss., lmu, 2008. http://nbn-resolving.de/urn:nbn:de:bvb:19-91986.

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Walker, Edwin Parker. "Superresolution applied to optical data storage systems." Diss., The University of Arizona, 1999. http://hdl.handle.net/10150/289046.

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This dissertation investigates superresolution applications in optical data storage systems. The performance of standard and superresolving magneto-optic data storage system are quantified by scalar diffraction modeling and experiments. Classical resolution measures are reviewed. Background on superresolution definitions and their conceptual development in scanning optical microscopes, optical data storage, and image processing is presented. Figures of merit for quantifying the performance of the systems are reviewed, such as system transfer function, two-point response, focused spot size, and

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Shinn, Mannix A. "Development of Magneto-Optic Sensors with Gallium in Bismuth Doped Rare-Earth Iron-Garnet Thick Films." Thesis, Temple University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10639984.

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<p> We have investigated the Faraday effect of bismuth-doped rare-earth iron-garnets with varying doping levels of gallium from z = 1.0 to 1.35. We used lutetium to control the film's in-plane magnetic properties and found that gallium doping levels above the compensation point caused a loss of anisotropy control, a canted out-of-plane magnetization in the film, and an extremely weak but linear coercivity above 10 micro-Tesla fields. Using these results we focused on in-plane films to create 8 layer stacks of 500 um thick films to achieve a minimum detectable field of 50 pT at 1 kHz. Unlike pr

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Grover, Tarun Ph D. Massachusetts Institute of Technology. "Applied fractionalization : quantum phases and phase transitions of strongly interacting systems." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/68973.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2010.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 131-136).<br>Strongly correlated systems present interesting challenges in condensed matter physics. On the one hand, the theoretical work in the last two decades suggests that strong interactions may lead to new phases and phase transitions of matter that don't fit paradigms such as Fermi liquid theory or Landau's theory of phase transitions. On the other hand, there are actual materials which are undoubtedly governed by strong int

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Ellison, Charles Leland. "Development of Multistep and Degenerate Variational Integrators for Applications in Plasma Physics." Thesis, Princeton University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10090246.

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<p> Geometric integrators yield high-fidelity numerical results by retaining conservation laws in the time advance. A particularly powerful class of geometric integrators is symplectic integrators, which are widely used in orbital mechanics and accelerator physics. An important application presently lacking symplectic integrators is the guiding center motion of magnetized particles represented by non-canonical coordinates. Because guiding center trajectories are foundational to many simulations of magnetically confined plasmas, geometric guiding center algorithms have high potential for impact

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Rhoades, Matthew W. "Pulsed Laser Deposition and Electrical Properties of Zinc Selenide Based Thin Film Structures for Integration with Mid-infrared Applications." Thesis, The University of Alabama at Birmingham, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10787536.

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<p> Thin films of chlorine (Cl) and copper (Cu) doped zinc selenide (Cl:ZnSe and Cu:ZnSe) were fabricated by pulsed laser deposition (PLD) with the goal of enabling a multilayered semiconductor structure for a mid-infrared (mid-IR) electrically excited laser. Doping of ZnSe is achieved by varying the mass ratio of zinc chloride (ZnCl<sub>2</sub>) or copper selenide (Cu<sub>2</sub>Se) to ZnSe precursors in starting pressed powder targets. Appropriate adjustment of the fraction of dopant precursor in the mixtures allows for the control of the dopant concentration, N<i><sub>D</sub></i>–N<i>

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Beach, Alexander R. "Fabrication of Self-Assembled Nanosphere Templates to Investigate the Magnetic Behavior of Permalloy Cap Layers." Thesis, California State University, Long Beach, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10841251.

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<p> The Langmuir-Blodgett deposition process is investigated for creating polystyrene nanosphere monolayers on a hydrophilic silicon substrate. The monolayers are fabricated over areas ~1 cm<sup>2</sup> and sputter coated with 100Å of permalloy. The quality of the monolayers is analyzed with optical microscope image processing, and 2D Fourier transforms of electron microscope images. The magnetic switching behavior of the sputtered samples is measured using an alternating gradient magnetometer, and compared to completely flat permalloy. The magnetic hysteresis measurements are done at di

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Keller, Steven Ede. "Flux-limited Diffusion Coefficient Applied to Reactor Analysis." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/16126.

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A new definition of the diffusion coefficient for use in reactor physics calculations is evaluated in this thesis. It is based on naturally flux-limited diffusion theory (FDT), sometimes referred to as Levermore-Pomraning diffusion theory. Another diffusion coefficient more loosely based on FDT is also evaluated in this thesis. Flux-limited diffusion theory adheres to the physical principle of flux-limiting, which is that the magnitude of neutron current is not allowed to exceed the scalar flux. Because the diffusion coefficients currently used in the nuclear industry are not flux-limited

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Pyper, Graham. "Aspects of laser tissue interaction in photodynamic therapy." Thesis, University of Hull, 1997. http://hydra.hull.ac.uk/resources/hull:11088.

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Key, Philip Henry. "Excimer laser micromachining of inorganic materials." Thesis, University of Hull, 1989. http://hydra.hull.ac.uk/resources/hull:11090.

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Khosroshahi, Mohammed Etrati. "Ablation of ophthalmic tissues with fibre delivered UV and IR lasers." Thesis, University of Hull, 1993. http://hydra.hull.ac.uk/resources/hull:16870.

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In this thesis investigations of short pulse XeCl, KrF and ArF excimer lasers and HF laser transmission in fused silica and fluoride glass fibres respectively are reported, together with studies of polymer and soft tissue ablation in air and saline. Etch rate and photoacoustic measurements have been used to study the ablation process for the tissue and polymer samples with excimer lasers. The main emphasis is on the HF laser where a UV preionized transverse discharge in SF6 - C3H8 mixtures was used to generate ≃400ns (FWHM) pulses of energy up to 380mJ. Transmission measurements made on a 500μ

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Witwit, Mohammed R. M. "Perburbation and non-perburbation numerical calculations to compute energy eigenvalues for the Schrödinger equation with various types of potential." Thesis, University of Hull, 1989. http://hydra.hull.ac.uk/resources/hull:12766.

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The present work is concerned with methods of finding the energy eigenvalues of the one-particle Schrödinger equation for various model potentials in one, two, three and N-dimensional space. One major theme of this thesis is the study of diverent Rayleigh-Schrödinger perturbation series which are encountered in non-relativistic quantum mechanics and on the behaviour of the series coefficients E(n) in the energy expansion E(λ):E(O)+∑ E(n)λⁿ. Several perturbative techniques are used. Hypervirial and Hellmann-Feynman theorems with renormalised constants are used to obtain perturbation series for

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Layfield, Andrew. "An evaluation of selected estimation methods for the processing of differential absorption lidar data." Thesis, University of Hull, 1987. http://hydra.hull.ac.uk/resources/hull:16436.

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This work examines the application of selected estimation methods to path integrated direct detection CO2 lidar data, with the objective of improving the precision in the estimates of the log power, and log power ratios. Particular emphasis is given to the optimal estimation techniques of Kalman filtering theory, and to the consequent requirements for system and measurement model identification. A dual wavelength system was designed and constructed, employing two hybridised TEA lasers, a co-axial transceiver, and direct detection. Over a period of several months, a database of differential abs

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O'Neal, Jared. "A Numerical Study of a Disorder-driven 2D Mott Insulator-to-Metal Quantum Phase Transition." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1492701913534985.

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Novick, Jaison Allen. "Chaotic scattering in an open vase-shaped cavity: Topological, numerical, and experimental results." W&M ScholarWorks, 2009. https://scholarworks.wm.edu/etd/1539623550.

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We present a study of trajectories in a two-dimensional, open, vase-shaped cavity in the absence of forces The classical trajectories freely propagate between elastic collisions. Bound trajectories, regular scattering trajectories, and chaotic scattering trajectories are present in the vase. Most importantly, we find that classical trajectories passing through the vase's mouth escape without return. In our simulations, we propagate bursts of trajectories from point sources located along the vase walls. We record the time for escaping trajectories to pass through the vase's neck. Constructing a

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Miller, Corey Alexander. "Intelligent Feature Selection Techniques for Pattern Classification of Time-Domain Signals." W&M ScholarWorks, 2013. https://scholarworks.wm.edu/etd/1539623620.

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Time-domain signals form the basis of analysis for a variety of applications, including those involving variable conditions or physical changes that result in degraded signal quality. Typical approaches to signal analysis fail under these conditions, as these types of changes often lie outside the scope of the domain's basic analytic theory and are too complex for modeling. Sophisticated signal processing techniques are required as a result. In this work, we develop a robust signal analysis technique that is suitable for a wide variety of time-domain signal analysis applications. Statistical p

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Adianto. "Plasma polymerized organic thin films applied to electronic devices." Thesis, University of Salford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386600.

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Halstead, David Michael. "Time dependent quantum methods applied to molecule-surface interactions." Thesis, University of Liverpool, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303642.

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46

Nieuwenhoven, Michiel Adrianus van. "Gastrointestinal function during physical exercise basic and applied research /." [Maastricht : Maastricht : Universiteit Maastricht] ; University Library, Maastricht University [Host], 1999. http://arno.unimaas.nl/show.cgi?fid=6880.

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Dieste, Martina. "Random-vortex-particle methods applied to broadband fan interaction noise." Thesis, University of Southampton, 2011. https://eprints.soton.ac.uk/192591/.

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The general aim of this thesis is to investigate the suitability of a stochastic method for computational aeroacoustics, the specific objective being to devise a stochastic method to generate synthetic turbulence and combine it with the linearised Euler equations to predict broadband fan interaction noise. In modern turbofan designs broadband fan noise is a dominant source of aircraft noise, the most efficient source being the interaction between upstream turbulence and the stator vanes. The stochastic method developed to generate synthetic turbulence reproduces twodimensional isotropic turbul

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Marshall, Mark. "Physical interface design for digital musical instruments." Thesis, McGill University, 2009. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=40788.

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This thesis deals with the study of performer-instrument interaction during the performance of novel digital musical instruments (DMIs). Unlike acoustic instruments, digital musical instruments have no coupling between the sound generation system and the physical interface with which the performer interacts. As a result of this, such instruments also lack the direct physical feedback to the performer which is present in an acoustic instrument. In fact in contrast to acoustic musical instruments, haptic and vibrotactile feedback is generally not present in a DMI contributing to a poor feel for

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Clifford, Ivor David. "Object-oriented multi-physics applied to spatial reactor dynamics / Ivor David Clifford." Thesis, North-West University, 2007. http://hdl.handle.net/10394/1656.

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Traditionally coupled field reactor analysis has been carried out using several loosely coupled solvers, each having been developed independently from the others. In the field of multi-physics, the current generation of object-oriented toolkits provides robust close coupling of multiple fields on a single framework. This research investigates the suitability of such frameworks, in particular the Open-source Field Operation and Manipulation (OpenFOAM) framework, for the solution of spatial reactor dynamics problems. For this a subset of the theory of the Time-dependent Neutronics and Temperatur

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Claus, Daniel. "Resolution improvement methods applied to digital holography." Thesis, University of Warwick, 2010. http://wrap.warwick.ac.uk/47211/.

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This thesis discusses the creation, acquisition and processing of digital holograms. Several techniques to improve the optical resolution have been investigated and developed. The optical resolution of numerically reconstructed digital holograms is restricted by both the sampling frequency and the overall sensor-size of the digital camera chip used. This thesis explores the limitations on the optical resolution of the holograms obtained. A typical sensor-size and sampling frequency for digital holograms is 10 mm and 100 lp/mm, respectively, whereas holographic plates used for optical holograph

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