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Dissertations / Theses on the topic 'Quantum potential'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Schwalbe, Lehtihet André, and Bulancea Oscar Lindvall. "Quantum Random Walks with Perturbing Potential Barriers." Thesis, KTH, Skolan för teknikvetenskap (SCI), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-210864.

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With a recent interest in quantum computers, the properties of quantum mechanicalcounterparts to classical algorithms have been studied in the hope of providing efficientalgorithms for quantum computers. Because of the success of classical random walks inproviding good algorithms on classical computers, attention has been turned to quantumrandom walks, since they may similarly be used to construct efficient probabilisticalgorithms on quantum computers. In this thesis we examine properties of the quantumwalk on the line, in particular the standard deviation and the shape of the probabilitydistr

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2

Bartók-Pártay, Albert. "Gaussian approximation potential : an interatomic potential derived from first principles Quantum Mechanics." Thesis, University of Cambridge, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.608570.

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3

Tozer, David James. "Analytic derivatives of potential energy surface." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.338023.

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4

Rezaee, Amirabbas, and amirabbas rezaee@rmit edu au. "Phase-Periodic Quantum Structures and Perturbed Potential Wells." RMIT University. Electrical and Computer Engineering, 2009. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20091218.160522.

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The restrictions of micro-scale systems are approaching rapidly. In anticipation of this development, nano-scale electronics has become the focus of many researchers and engineers in academia and industry since early 1990s. The basic building blocks of modern integrated circuits have been diodes and transistors with their current-voltage I-V characteristics being of prime significance for the design of complex signal processing and shaping devices and systems. Classical and semi-classical physical principles are no longer powerful enough or even valid to describe the phenomena involved. The ap

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5

Nadeau, Raymond. "Two-loop effective potential of supersymmetric quantum electrodynamics." Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=75872.

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The formalism of effective potential method is first studied for usual field theory and extended to supersymmetric field theory. The specific case of supersymmetric quantum electrodynamics is then introduced. The superfields are shifted as required by Weinberg's method for the evaluation of effective potentials and superpropagators are derived with the method developed by Helayel-Neto for cases where supersymmetry is explicitly broken. Then, the one and two loop corrections to the effective potential may be calculated. These corrections are seen to be complex everywhere but at the minimum of t

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6

Sohn, Choong S. (Choong Sik) 1977. "Commercialization potential of quantum dot light emitting devices." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/7973.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2003.<br>Includes bibliographical references (leaves 45-48).<br>The use of quantum dots as discrete emitters in hybrid organic/inorganic light emitting devices is an attractive approach for producing novel display products. These structures exhibit narrow-band emission tunable across the visible spectrum - characteristics allowing for display devices not possible with current OLEO materials. In this work, quantum dot light emitting devices (QD-LEDs) using small molecule host materials are evalu

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7

Karlsson, Ulf. "Semi-classical approximations of Quantum Mechanical problems." Doctoral thesis, KTH, Mathematics, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3440.

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8

Andreassen, Anders Johan. "Gauge Dependence of the Quantum Field Theory Effective Potential." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for fysikk, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-23120.

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Using the absolute stability requirement of the Standard Model vacuum, we compute the Higgs mass bound for the 1-loop Standard Model effective potential with gauge dependence in the $R_\xi$ gauges together with 3-loop beta functions, 3-loop anomalous dimension and 2-loop threshold corrections. We find that the bound changes by +0.1GeV when we change the gauge parameter $\xi$ from 0 to 50. We also report that the Higgs bound plateaus as we increase $\xi$ beyond 100.

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9

Kaloyerou, Panayiotis Nicos. "Investigation of the quantum potential in the relativistic domain." Thesis, Birkbeck (University of London), 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.283852.

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10

Bucurgat, Mahmut. "Study Of One Dimensional Position Dependent Effective Mass Problem In Some Quantum Mechanical Systems." Phd thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/2/12609405/index.pdf.

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The one dimensional position dependent effective mass problem is studied by solving the Schr&ouml<br>dinger equation for some well known potentials, such as the deformed Hulthen, the Mie, the Kratzer, the pseudoharmonic, and the Morse potentials. Nikiforov-Uvarov method is used in the calculations to get energy eigenvalues and the corresponding wave functions exactly. By introducing a free parameter in the transformation of the wave function, the position dependent effective mass problem is reduced to the solution of the Schr&ouml<br>dinger equation for the constant mass case. At the same time

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11

Lei, Ming. "Quantum hall effect in the presence of an antidot potential." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=23910.

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The crossover transport regime between the quantum Hall effect and the Aharonov-Bohm effect is studied in terms of Buttiker's approach of electrical conduction. Quantum Hall effect and Aharonov-Bohm effect are very important effects in mesoscopic physics and both demonstrate unambiguously that quantum mechanics is the dominant factor in nanoscale electrical transport problems. However, they belong to situations of different dimensionality and different strength of magnetic fields. Our goal is to reveal the physics at the crossover regime between the two and find the transport properties of thi

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12

Jones, Dyan Lynne. "Quantum Fluctuations of a Cavity QED System with Periodic Potential." Miami University / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=miami1121696082.

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13

Ahmed, Istiaque, and s3119889@student rmit edu au. "Canonical and Perturbed Quantum Potential-Well Problems: A Universal Function Approach." RMIT University. Electrical and Computer Engineering, 2007. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20080108.124715.

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The limits of the current micro-scale electronics technology have been approaching rapidly. At nano-scale, however, the physical phenomena involved are fundamentally different than in micro-scale. Classical and semi-classical physical principles are no longer powerful enough or even valid to describe the phenomena involved. The rich and powerful concepts in quantum mechanics have become indispensable. There are several commercial software packages already available for modeling and simulation of the electrical, magnetic, and mechanical characteristics and properties of the nano-scale devices.

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14

Roberts, David Gawaine. "Quantum fluctuations during inflation and the development of large scale structure." Thesis, Lancaster University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.360647.

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15

Amin, Victor. "Ligand-Mediated Control of the Confinement Potential in Semiconductor Quantum Dots." Thesis, Northwestern University, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=3741337.

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<p> This thesis describes the mechanisms by which organic surfactants, particularly thiophenols and phenyldithiocarbamates, reduce the confinement potential experienced by the exciton of semiconductor quantum dots (QDs). The reduction of the confinement potential is enabled by the creation of interfacial electronic states near the band edge of the QD upon ligand adsorption. In the case of thiophenols, we find that this ligand adsorbs in two distinct binding modes, (i) a tightly bound mode capable of exciton delocalization, and (ii) a more weakly bound mode that has no discernable effect on exc

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16

Pickering, Austin Gerard Michael. "The effective potential and conformal invariance in supersymmetric quantum field theories." Thesis, King's College London (University of London), 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266503.

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17

Mandell, Eric S. "Theoretical studies of inter-dot potential barrier modulation in quantum-dot cellular automata." Virtual Press, 2001. http://liblink.bsu.edu/uhtbin/catkey/1221305.

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Quantum-Dot Cellular Automata (QCA) is being investigated as a possible alternative for encoding and processing binary information in an attempt to realize dramatic improvements in device density and processing speed over conventional CMOS design. The binary information is encoded in the locations of two excess electrons in a system of four quantum dots. The dots are arranged with each on a corner of a square, and electrons are able to quantum-mechanically tunnel between dots. Each set of four dots and two excess electrons constitutes a QCA cell. Coulomb repulsion ensures that the electrons wi

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18

Li, Ying. "Fluorescence quantum efficiency determination of potential laser materials using a photocalorimetric technique." Thesis, Queen's University Belfast, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334570.

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19

Haggerty, Michael Richard. "Semiclassical quantization in a smooth potential using Bogomolny's quantum surface of section." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/26853.

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20

Newman, Adam. "Behaviour of eigenfunction subsequences for delta-perturbed 2D quantum systems." Thesis, Loughborough University, 2016. https://dspace.lboro.ac.uk/2134/21568.

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We consider a quantum system whose unperturbed form consists of a self-adjoint Δ-operator on a 2-dimensional compact Riemannian manifold, which may or may not have a boundary. Then as a perturbation, we add a delta potential/point scatterer at some select point ρ. The perturbed self-adjoint operator is constructed rigorously by means of self-adjoint extension theory. We also consider a corresponding classical dynamical system on the cotangent/cosphere bundle, consisting of geodesic flow on the manifold, with specular reflection if there is a boundary. Chapter 2 describes the mathematics of the

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21

Gamsizkan, Halil. "Discovery Potential Of Quantum Black Holes In Add Model With The Cms Detector." Phd thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613539/index.pdf.

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With the long awaited start-up of the LHC, TeV scale physics is now in reach of the particles physicists to explore. There are many questions about the nature to be answered, and many more theories to be tested trying to answer them. The ADD model of extra dimensions is one such model, written to address the large mass hi- erarchy between the two fundamental energy scales in nature, the electroweak and the Planck scales. ADD model predicts stronger gravity at sub-millimeter distance scales, which would then lead to an interesting physical object to be produced at proton collusions at the LHC

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22

Schubert, Carsten. "Quantengraphen mit zufälligem Potential." Doctoral thesis, Universitätsbibliothek Chemnitz, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-83614.

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Ein metrischer Graph mit einem selbstadjungierten, negativen Laplace-Operator wird Quantengraph genannt. In dieser Arbeit werden Transporteigenschaften zufälliger Laplace-Operatoren betrachtet. Dazu wird die Multiskalenanalyse (MSA) von euklidischen Räumen auf metrische Graphen angepasst. Eine Überdeckung der metrischen Graphen wird aus gleichmäßig polynomiellem Wachstum und der gleichmäßigen Beschränkung der Kantenlängen gewonnen. Als Hilfsmittel für die MSA werden eine Combes-Thomas-Abschätzung und eine Geometrische Resolventenungleichung bewiesen. Zusammen mit einer Wegner-Abschätzung und d

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23

Remmert, Sarah M. "Reduced dimensionality quantum dynamics of chemical reactions." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:7f96405f-105c-4ca3-9b8a-06f77d84606a.

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In this thesis a reduced dimensionality quantum scattering model is applied to the study of polyatomic reactions of type X + CH4 <--> XH + CH3. Two dimensional quantum scattering of the symmetric hydrogen exchange reaction CH3+CH4 <--> CH4+CH3 is performed on an 18-parameter double-Morse analytical function derived from ab initio calculations at the CCSD(T)/cc-pVTZ//MP2/cc-pVTZ level of theory. Spectator mode motion is approximately treated via inclusion of curvilinear or rectilinear projected zero-point energies in the potential surface. The close-coupled equations are solved using R-matrix p

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24

Mohr, Richard Frank Jr. "Quantum mechanical three-body problem with short-range interactions." Connect to this title online, 2003. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1050007430.

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Thesis (Ph. D.)--Ohio State University, 2003.<br>Title from first page of PDF file. Document formatted into pages; contains xiii, 182 p.; also includes graphics Includes bibliographical references (p. 181-182). Available online via OhioLINK's ETD Center

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25

Bowman, John V. "Transport in a confined two-dimensional electron gas with longitudinal potential variations." Virtual Press, 1995. http://liblink.bsu.edu/uhtbin/catkey/958798.

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Since the discovery of conductance quantization within a nanostnucture, investigations have sought out causes to conductance fluctuations beyond the established plateaus. The focus of this work is to show the fundamental effects upon conductance due to longitudinal potentials and double quantum boxes when confined by hardwall boundaries. A theoretical model based upon a tight-binding recursive tureen's function methodology was modified to incorporate potential barrier variations. A qualitative evaluation, as well as, explanation of the model's results and limitations is discussed.<br>Departmen

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26

Zheng, Yindong. "Chaos and Momentum Diffusion of the Classical and Quantum Kicked Rotor." Thesis, University of North Texas, 2005. https://digital.library.unt.edu/ark:/67531/metadc4824/.

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The de Broglie-Bohm (BB) approach to quantum mechanics gives trajectories similar to classical trajectories except that they are also determined by a quantum potential. The quantum potential is a "fictitious potential" in the sense that it is part of the quantum kinetic energy. We use quantum trajectories to treat quantum chaos in a manner similar to classical chaos. For the kicked rotor, which is a bounded system, we use the Benettin et al. method to calculate both classical and quantum Lyapunov exponents as a function of control parameter K and find chaos in both cases. Within the chaotic se

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27

Schaffer, David L. Behrman Elizabeth. "The magnetic vector potential, Klein-Gordon equation and Klein's paradox in relativistic quantum mechanics." Diss., A link to full text of this thesis in SOAR, 2007. http://soar.wichita.edu/dspace/handle/10057/1170.

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Thesis (M.S.)--Wichita State University, College of Liberal Arts and Sciences, Dept. of Physics.<br>"May 2007." Title from PDF title page (viewed on Dec. 29, 2007). Thesis adviser: Elizabeth Behrman. Includes bibliographic references (leaves 84-86).

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28

Daud, Mohammad Noh. "Quantum mechanical study of the potential energy surfaces and photodissociation dynamics of Nâ‚‚O." Thesis, University of Bristol, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.425078.

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29

Püntmann, Christoph Herrmann Theodor. "The rigged Hilbert space formalism in quantum mechanics with applications to higher-order pole resonances and to potential barriers /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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30

Okazaki, Susumu, and Atsushi Yamada. "A quantum equation of motion for chemical reaction systems on an adiabatic double-well potential surface in solution based on the framework of mixed quantum-classical molecular dynamics." AIP Publishing, 2008. http://hdl.handle.net/2237/20836.

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31

Schubert, Carsten. "Quantengraphen mit zufälligem Potential." Doctoral thesis, Universitätsverlag der Technischen Universität Chemnitz, 2011. https://monarch.qucosa.de/id/qucosa%3A19665.

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Ein metrischer Graph mit einem selbstadjungierten, negativen Laplace-Operator wird Quantengraph genannt. In dieser Arbeit werden Transporteigenschaften zufälliger Laplace-Operatoren betrachtet. Dazu wird die Multiskalenanalyse (MSA) von euklidischen Räumen auf metrische Graphen angepasst. Eine Überdeckung der metrischen Graphen wird aus gleichmäßig polynomiellem Wachstum und der gleichmäßigen Beschränkung der Kantenlängen gewonnen. Als Hilfsmittel für die MSA werden eine Combes-Thomas-Abschätzung und eine Geometrische Resolventenungleichung bewiesen. Zusammen mit einer Wegner-Abschätzung und

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32

Rabinovic, Mihail. "Quasithermalization of fermions in a quadrupole potential and evaporative cooling of 40K to quantum degeneracy." Thesis, Paris Sciences et Lettres (ComUE), 2017. http://www.theses.fr/2017PSLEE019/document.

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Dans cette thèse, nous avons étudié expérimentalement les propriétés physiques des fermions ultra-froids grâce à une machine conçue pour refroidir un mélange fermionique de 6Li et 40K. Après une courte description concernant la construction de l'expérience et quelques améliorations que j'ai implémentées pendant ma thèse (telles que la désorption atomique par lumière ultraviolette dans le 2D-MOT), l'exposé se concentre sur deux observations principales de l'origine fermionique des gaz de potassium et de lithium.La première partie présente la quasithermalization du 6Li dans un potentiel quadrupo

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33

Galvez, Richard Anthony. "Two dimensional quantum chromodynamics in the limit of infinite colors with a finite chemical potential." FIU Digital Commons, 2009. http://digitalcommons.fiu.edu/etd/3444.

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Two dimensional large N lattice gauge theory is considered in the presence of a baryonic chemical potential. A review of lattice field theory, large N gauge theory and Eguchi-Kawai reduction is given. We work with one copy of naïve fermion and argue that reduction holds even in the presence of a chemical potential. Analytical arguments supported by numerical studies show that there is no phase transition as a function of the baryonic chemical potential.

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34

Botteghi, Marina. "Coordinate transformations in quantum gravity: the Schwarzschild black hole." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022. http://amslaurea.unibo.it/25684/.

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Una teoria coerente della gravità quantistica deve tenere conto dell'invarianza sotto trasformazioni di coordinate della teoria classica della Relatività Generale. Questa invarianza è principalmente considerata nella teoria linearizzata intorno a un dato background e, di conseguenza, le trasformazioni che vengono prese in considerazione sono deformazioni regolari dell'identità (diffeomorfismi). Tuttavia, le soluzioni delle equazioni di Einstein sono invarianti sotto trasformazioni più generali che dipendono dalle soluzioni stesse e non possono quindi essere ricondotte all'identità. Degli esemp

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35

Weidig, Tom. "Classical and quantum aspects of topological solitons (using numerical methods)." Thesis, Durham University, 1999. http://etheses.dur.ac.uk/4277/.

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In Introduction, we review integrable and topological solitons. In Numerical Methods, we describe how to minimize functionals, time-integrate configurations and solve eigenvalue problems. We also present the Simulated Annealing scheme for minimisation in solitonic systems. In Classical Aspects, we analyse the effect of the potential term on the structure of minimal- energy solutions for any topological charge n. The simplest holomorphic baby Skyrme model has no known stable minimal-energy solution for n > 1. The one-vacuum baby Skyrme model possesses non-radially symmetric multi-skyrmions that

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36

Zhi, Qiu. "Study of Ionizaton of Quantum Systems with Delta Potentials in Damped and Undamped Time Periodic Fields." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1250019795.

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37

Naubereit, Pascal [Verfasser]. "Resonance Ionization Spectroscopy of Protactinium : Studies on Intrinsic Quantum Chaos and the Ionization Potential / Pascal Naubereit." Mainz : Universitätsbibliothek der Johannes Gutenberg-Universität Mainz, 2020. http://d-nb.info/1224896270/34.

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38

Денисов, Станіслав Іванович, Станислав Иванович Денисов, Stanislav Ivanovych Denysov, A. V. Husachenko, and O. S. Ryzhkov. "Energy Spectrum of a Particle in an Infinitely Deep Potential Well with a Non-flat Bottom." Thesis, Sumy State University, 2018. http://essuir.sumdu.edu.ua/handle/123456789/67953.

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To model the quantum behavior of current carriers in heterogeneous nanostructures, different potential wells and barriers are widely used. Of particular interest are those (including artificial ones) for which the corresponding Schrödinger equation can be solved exactly. One of them is an infinitely deep potential well with a flat bottom defined as 𝑈(𝑥) = ∞ for |𝑥| ≥ 𝑎 and 𝑈(𝑥) = 0 for |𝑥| < 𝑎. Here, we report on exact solution of the stationary Schrödinger equation in the case, when the potential bottom is non-flat, i.e., 𝑈(𝑥) = −𝑓𝑥 (𝑓 > 0) if |𝑥| < 𝑎. Physically, this means that the particle

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39

Borris, Markus. "Quantum Field Theory on Non-commutative Spacetimes." Doctoral thesis, Universitätsbibliothek Leipzig, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-67788.

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The time coordinate is a common obstacle in the theory of non-commutative (nc.) spacetimes. Despite that, this work shows how the interplay between quantum fields and an underlying nc. spacetime can still be analyzed, even for the case of nc. time. This is done for the example of a general Moyal-type external potential scattering of the Dirac field in Moyal-Minkowski spacetime. The spacetime is a rare example of a Lorentzian non-compact nc. geometry. Elements of the associated spectral function algebra are shown to be operationally involved at the level of quantum field operators by Bogoliubov

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40

Stedl, Todd Robert. "Computational investigations of the dynamics of chlorine dioxide /." Thesis, Connect to this title online; UW restricted, 2003. http://hdl.handle.net/1773/8497.

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41

Koller, J. "Potential Vorticity Evolution in the Co-orbital Region of Embedded Protoplanets." Los Alamos, N.M. : Oak Ridge, Tenn. : Los Alamos National Laboratory ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2004. http://www.osti.gov/servlets/purl/836124-uO0DBZ/native/.

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Thesis (Ph.D.); Submitted to the Department of Physics and Astronomy, Rice University, Houston, TX (US); 1 Sep 2004.<br>Published through the Information Bridge: DOE Scientific and Technical Information. "LA-14149-T" J. Koller. US DOE (US) 09/01/2004. Report is also available in paper and microfiche from NTIS.

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42

Veinot, Jonathan G. C. "Surface functionalization and derivatization of 25 A cadmium sulfide nanoclusters : a study of potential molecular electronic components /." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://wwwlib.umi.com/cr/yorku/fullcit?pNQ43453.

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Thesis (Ph.D.)--York University, 1999. Graduate Programme in Chemistry.<br>Typescript. Includes bibliographical references (leaves 155-161). Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL: http://wwwlib.umi.com/cr/yorku/fullcit?pNQ43453

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43

Ringer, Ashley L. "From small to big." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28089.

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Thesis (M. S.)--Chemistry and Biochemistry, Georgia Institute of Technology, 2009.<br>Committee Chair: Sherrill, C. David; Committee Member: Bredas, Jean-Luc; Committee Member: El-Sayed, Mostafa A.; Committee Member: Harvey, Stephen C; Committee Member: Hernandez, Rigoberto.

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44

Li, Zhenwei. "On-the-fly machine learning of quantum mechanical forces and its potential applications for large scale molecular dynamics." Thesis, King's College London (University of London), 2014. http://kclpure.kcl.ac.uk/portal/en/theses/onthefly-machine-learning-of-quantum-mechanical-forces-and-its-potential-applications-for-large-scale-molecular-dynamics(2a2f33a6-fa0c-44e3-8689-f4cf3f1c9198).html.

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Material simulation using molecular dynamics (MD) at the quantum mechanical (QM) accuracy level has gained great interest in the community. However, the bottleneck arising from the O(N3) scaling of QM calculation has enormously limited its investigation scope. As an approach to address this issue, in this thesis, I proposed a machine-learning (ML) MD scheme based on Bayesian inference from CPU-intensive QM force database. In this scheme, QM calculations are only performed when necessary and used to augment the ML database for more challenging prediction case. The scheme is generally transferab

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45

Hakanen, Jani. "Modeling of nanostructures with complex source and drain." Thesis, Linköping University, The Department of Physics, Chemistry and Biology, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-4285.

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<p>In this thesis we report on calculations for open quantum mechanical and certain microwave systems. The models refer to a quantum point contact and an electron cavity. We model this open system with an imaginary potential as source and drain, and use the finite difference method to make our calculations. We report on general features of the model we have found, and compare our calculations with measurements made on microwave cavities.</p>

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46

Kalita, Mausam. "Synthesis and labeling strategy for indirect detection of estrogen-derived DNA adducts using aqueous quantum dots." Diss., Kansas State University, 2010. http://hdl.handle.net/2097/7018.

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Doctor of Philosophy<br>Department of Chemistry<br>Stefan Bossmann<br>Estrogen-derived DNA adducts in human could be the initiating step of breast and prostate cancer, as the scientific literature suggests. Previous studies demonstrated that 4-hydroxy-estrone (estradiol)-1-N3Adenine and 4-hydroxy-estrone (estradiol)-1-N7Guanine were the most abundant adducts found in urine of human subjects. Sensitive detection of these adducts in urine samples could lead to better breast and prostate cancer risk assessment. The standard adducts were synthesized and characterized by NMR and mass spectrometry.

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47

Jamal, Adeel. "Ab Initio Quantum Chemical Studies on Neutral-Radical Reactions of Ethynyl (C2H) and Cyano (CN) with Unsaturated Hydrocarbons." FIU Digital Commons, 2012. http://digitalcommons.fiu.edu/etd/736.

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An Ab Initio/RRKM study of the reaction mechanism and product branching ratios of neutral-radical ethynyl (C2H) and cyano (CN) radical species with unsaturated hydrocarbons is performed. The reactions studied apply to cold conditions such as planetary atmospheres including Titan, the Interstellar Medium (ISM), icy bodies and molecular clouds. The reactions of C2H and CN additions to gaseous unsaturated hydrocarbons are an active area of study. NASA’s Cassini/Huygens mission found a high concentration of C2H and CN from photolysis of ethyne (C2H2) and hydrogen cyanide (HCN), respectively, in th

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48

Mendes, Carlos Fábio de Oliveira. "Dissipação quântica em sistemas abertos finitos." Universidade Federal do Amazonas, 2014. http://tede.ufam.edu.br/handle/tede/4255.

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Submitted by Kamila Costa (kamilavasconceloscosta@gmail.com) on 2015-06-19T19:03:38Z No. of bitstreams: 1 Dissertação-Carlos F de O Mendes.pdf: 2879258 bytes, checksum: f17f29894c03ef3d86d4a3566328988e (MD5)<br>Approved for entry into archive by Divisão de Documentação/BC Biblioteca Central (ddbc@ufam.edu.br) on 2015-07-06T19:16:17Z (GMT) No. of bitstreams: 1 Dissertação-Carlos F de O Mendes.pdf: 2879258 bytes, checksum: f17f29894c03ef3d86d4a3566328988e (MD5)<br>Approved for entry into archive by Divisão de Documentação/BC Biblioteca Central (ddbc@ufam.edu.br) on 2015-07-06T19:20:01Z (GMT) No.

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49

Schüller, Andreas. "Quanten-Regenbogenstreuung bei axialer Oberflächen-Gitterführung schneller Atome." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2010. http://dx.doi.org/10.18452/16161.

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In dieser Dissertation werden klassische und quantenmechanische Regenbögen in den Winkelverteilungen bei streifender Streuung (Einfallswinkeln ca. 1°) von schnellen Atomen (kinetische Energien im Bereich von keV) entlang niedrig indizierter Kristallrichtungen atomar ebener Festkörperoberflächen untersucht. Die Projektilatome werden dabei entlang der Atomketten der jeweiligen Kristallrichtung geführt (axiale Oberflächen-Gitterführung) und mit einem ortsauflösenden Detektor nachgewiesen. Die resultierenden Streuverteilungen zeigen Intensitätsmaxima, die aufgrund von Regenbogenstreuung entstehen.

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50

Diac, Andreea Petronela. "Design, synthesis and supramolecular architectures of new heterocyclic compounds with potential applications in material chemistry and photovoltaic conversion." Thesis, Angers, 2015. http://www.theses.fr/2015ANGE0019/document.

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La thèse intitulée «Design, Synthesis and SupramolecularArchitectures of New Heterocyclic Compounds with PotentialApplications in Material Chemistry and Photovoltaic Conversion” eststructurée en cinq chapitres traitant de nouveaux: a)cyclopenta[c]pyrannes hétérocyclique; b)des propriétés fluorescentes; d) potentiels dispositifs de l'électroniquemoléculaire; d) donneurs moléculaires pour les photovoltaïquesorganiques et e) carbon‘quantum’dots électroluminescents.Le premier chapitre présente une étude des dérivéspseudoazulenique ayant une unité cyclopenta[porte sur leur synthèse, l'analyse struc

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