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Rozprawy doktorskie na temat „Cascade”

Autor: Grafiati
Data publikacji: 4 czerwca 2021
Data aktualizacji: 25 lipca 2025

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1

Taboada, Martín O. "Automated target cascade." [S.l.] : [s.n.], 2006. http://opus.kobv.de/tuberlin/volltexte/2006/1435.

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2

Patterson, Steven Gregory. "Bipolar cascade lasers." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/8805.

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Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2000.<br>Includes bibliographical references.<br>This thesis addresses issues of the design and modeling of the Bipolar Cascade Laser (BCL), a new type of quantum well laser. BCLs consist of multiple single stage lasers electrically coupled via tunnel junctions. The BCL ideally operates by having each injected electron participate in a recombination event in the topmost active region, then tunnel from the valence band of the first active region into the conduction band of the next activ
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3

Baumann, Morgaine Lillian. "Cascade & Run." PDXScholar, 2019. https://pdxscholar.library.pdx.edu/open_access_etds/5121.

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A few things that influenced this collection of poems: shifting memory, mirroring, opposites, river rapids, patterns that repeat and spread both in the natural world and in writing... rhizomatic root systems, veins, an aerial view of rivers...
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4

Yamazaki, Yasuhiro H. "The cyclogenetic energy cascade." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ49977.pdf.

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5

Hanson, Timothy B. "Cascade adaptive array structures." Ohio : Ohio University, 1990. http://www.ohiolink.edu/etd/view.cgi?ohiou1173207031.

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6

Main, A. D. J. "Annular turbine cascade aerodynamics." Thesis, University of Oxford, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239350.

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7

Winning, Leonard H. "New Radical Cascade Chemistry." Thesis, University of Oxford, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.494312.

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8

Williams, Benjamin S. (Benjamin Stanford) 1974. "Terahertz quantum cascade lasers." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/17012.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2003.<br>Includes bibliographical references (p. 297-310).<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>The development of the terahertz frequency range has long been impeded by the relative dearth of compact, coherent radiation sources of reasonable power. This thesis details the development of quantum cascade lasers (QCLs) that operate in the terahertz with photon energies belo
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9

Pack, Camille Marian. "Cascade Lake: A Novel." DigitalCommons@USU, 2009. https://digitalcommons.usu.edu/etd/365.

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Twenty-two-year-old Macy Oman narrates the book in retrospect from Cascade, Oregon, where she is visiting her mother. Macy's father moved with her to Portland shortly after the accidental death of her brother, Nick, seven years before the narration begins. Macy's mother stayed behind in Cascade. Thematically the work centers on the emotional repercussions of these losses. Macy's, and her older lover Jason's, involvement with Nick's death is unknown to everyone. Her guilt and her mother's perceived betrayal are disabling. Taking her longing for closeness to nature and to her reclusive friend Ce
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10

Mizuta, Atsushi. "Universality of Kolmogorov's Cascade Picture in Inverse Energy Cascade Range of Two-dimensional turbulence." 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/189339.

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11

Senalp, Erdem Turker. "Cascade Modeling Of Nonlinear Systems." Phd thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/3/12608578/index.pdf.

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Modeling of nonlinear systems based on special Hammerstein forms has been considered. In Hammerstein system modeling a static nonlinearity is connected to a dynamic linearity in cascade form. Fundamental contributions of this work are: 1) Introduction of Bezier curve nonlinearity representations<br>2) Introduction of B-Spline curve nonlinearity representations instead of polynomials in cascade modeling. As a result, local control in nonlinear system modeling is achieved. Thus, unexpected variations of the output can be modeled more closely. As an important demonstration case, a model is dev
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12

Rochat, Michel. "Far-infrared quantum cascade lasers." Online version, 2002. http://bibpurl.oclc.org/web/24095.

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13

Dhirhe, Devnath. "Monolithic tuneable quantum cascade lasers." Thesis, University of Glasgow, 2013. http://theses.gla.ac.uk/4604/.

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This thesis is concerned with the design, fabrication and characterisation of monolithic tuneable quantum cascade lasers (QCLs), which are suitable for tuneable diode laser based absorption spectroscopy and polarisation dependent spectroscopy in the mid-infrared wavelength range. All investigations and device development work were carried out using the QCL structure based on strain-compensated Ga0.331In0.669As/Al0.659In0.341As grown on an InP substrate that emits light around 4500 nm wavelength. To make the QCLs electrically tuned, two laser designs were investigated: the double ring quantum c
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14

bin, Hashim Hasnul Hidayat. "Travelling-wave series cascade lasers." Thesis, University of Leeds, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.493548.

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A travelling-wave microwave fibre-optic hnk (TWMFL) is proposed consisting of two transmission line structures that are periodically loaded with laser diodes and photodiodes, connected to one another by a fibre array.
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15

Dumrongchai, Nuethip. "Palladium Catalyzed Multicomponent Cascade Reactions." Thesis, University of Leeds, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.487516.

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This Thesis is divided into three parts: Introduction (Chapter 1), Result and Discussion (Chapter 2) and Experimental (Chapter 3). The Introduction (Chapter 1) provides a review of the recent literature relating to the 1,3dipolar cycloaddition reactions. It· covers nitrones, azomethine ylides and azomethine imines. The Result and Discussion. section (Chapter 2) deals with the author's work which is . concerned with developing four novel multicomponent cascade reactions. These are (i) a 3- component cascade involving bifunctional aryl halide! Michael acceptors, allene and arriine or sulphona
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16

Commin, James Paul. "Short wavelength quantum cascade lasers." Thesis, University of Sheffield, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.575411.

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Quantum Cascade Lasers (QCLs) are unipolar lasers based on intersubband transitions that have emission wavelengths in the mid- to far-infrared. Mid-infrared QCLs have recently reached a high level of technological maturity with watt level continuous wave output powers being demonstrated at room temperature. However, the performance of these conventional QCLs falls away very rapidly below -4 urn where a number of important applications exist. This thesis details the design, fabrication and characterisation of high performance 'short wavelength' QCLs that operate in the 3-4 urn region. The high
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17

Freeman, J. R. "Heterogeneous terahertz quantum cascade lasers." Thesis, University of Cambridge, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.599209.

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Although terahertz quantum cascade lasers (QCLs) are promising devices for cheap, compact and coherent sources of terahertz radiation, the full potential of these lasers has not been realised. In this work we shall examine the active region design of THz QCLs and study the behaviour of heterogeneous active regions, where there are several quantum cascade designs combined in the same active region. We will present a study of the systematic design of THz QCLs and show that it is possible to systematically tune the frequency of these devices by simple modifications to the active region design. We
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18

Cooper, Ian Ronald. "Palladium-indium bimetallic cascade processes." Thesis, University of Leeds, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.401087.

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19

Marchbank, John David. "Palladium-catalysed cascade ring syntheses." Thesis, University of Leeds, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.405708.

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20

Hasan, Mohammad Mubashyeer. "Catalytic cascade chemistry for glycobiology." Thesis, University of Leeds, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.441265.

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21

Sundberg, Patrik P. (Patrik Per) 1980. "Pose estimation using cascade trees." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/17985.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2004.<br>Includes bibliographical references (p. 57-58).<br>In this thesis, I implemented and extended a face detector, based on cascades of boosted features, for use in real time systems. The extensions are twofold. First, I designed a way of combining several cascades into a cascade tree, and showed how such a tree provides a powerful mechanism for combining detector efficiency and accuracy. When the training data has large variations, the cascade tree yields a faster detector, and
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22

Zakaria, Gaguk. "Cascade RLS with Subsection Adaptation." Diss., Virginia Tech, 2000. http://hdl.handle.net/10919/26295.

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Speech coding or speech compression is one of the important aspects of speech communications nowadays. By coding the speech, the speed needed to transmit the digitized speech, called the bit rate, can be reduced. This means that for a certain speech communications channel, the lower the bit rate of the speech coding, the more communicating parties can be carried on that channel. This research has as its main application the extraction of the parameters of human speech for speech coding purposes. We propose an RLS-based cascade adaptive filter structure that can significantly reduce the compu
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23

Carstens, Charl. "Major Incident Communication Cascade Evaluation." Master's thesis, University of Cape Town, 2009. http://hdl.handle.net/11427/2858.

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24

Kischkat, Jan-Ferenc. "External Cavity Quantum Cascade Lasers." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2015. http://dx.doi.org/10.18452/17303.

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Diese Arbeit untersucht den Einfluss verschiedener physikalischer Parameter auf das Verhalten von Frequenz-abstimmbaren External-Cavity Quantenkaskadenlasern (EC-QCLs) theoretisch und experimentell. Diese beinhalten unter anderen die Antireflexschicht, die Art der Optiken, die geometrischen und die mechanisch/strukturellen Eigenschaften. Dies wurde erreicht durch Aufbau dreier sehr unterschiedlicher EC-Konfigurationen, der Diskussion und dem Vergleich ihrer Leistungsmerkmale und ihrer Vor- und Nachteile für verschiedene Anwendungen unter hauptsächlicher Verwendung von QCLs desselben Wafers de
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25

Flores, Yuri Victorovich. "Mid-infrared quantum cascade lasers." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2015. http://dx.doi.org/10.18452/17224.

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Quantenkaskadenlaser (QCLs) wurden vor gerade zwanzig Jahren erfunden und haben seitdem stetig im weltweiten Markt der optoelektronischen Bauelemente für den Infrarot an Bedeutung gewonnen. Anwendungsbeispiele für aktuelle und potenzielle Einsatzgebiete von QCLs sind photoakustische Spektroskopie, Umweltüberwachung, Simulation von heißen Körpern, und optische Freiraumdatenübertragung. Rekord optische Leistungen von 14 W und Leistungseffizienzen zwischen 15-35 % wurden bei mittelinfraroten QCLs für Betriebstemperaturen zwischen 80-300 K erreicht. Die weitere Verbesserung dieser Eigenschaften hä
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26

Topczewski, Joseph John. "Cascade cyclizations & the schweinfurthins." Diss., University of Iowa, 2011. https://ir.uiowa.edu/etd/2780.

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Cancer is a serious family of disease that continues to cripple and claim those afflicted. For the last several decades, America has invested in a national program to alleviate cancer and cancer related suffering, ultimately seeking a cure. As part of this goal, the National Cancer Institute (NCI) has spent significant effort scouring the globe with the hope of finding naturally occurring compounds that can successfully combat cancer. Presently, this effort has uncovered many natural products with chemotherapeutic potential and many of the lead agents used in the fight against cancer are eithe
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27

Mamouridis, Valeria. "Trophic cascade modelling in bathyal ecosystems." Doctoral thesis, Universitat Politècnica de Catalunya, 2015. http://hdl.handle.net/10803/403955.

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Different aspects of the bathyal ecosystem have been treated with the final aim to investigate trophic cascades driven by fishery (top-down control), a phenomenon that in bathyal systems has never been studied. This was exemplified by the in-depth study of the exploited soft-bottom continental slope off Catalonia (NW Mediterranean), where the fishery of the red shrimp Aristeus antennatus is carried out and the main structure of the trophic web is known. In Part I the infaunal assemblages inside the canyon and on the adjacent slope have been related to environmental variables. A seasonal vari
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28

Clarke, Daniel William. "The pathogenic cascade of Acanthamoeba Keratitis." Access to abstract only; dissertation is embargoed until after 5/15/2007, 2006. http://www4.utsouthwestern.edu/library/ETD/etdDetails.cfm?etdID=153.

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29

Pocock, Ian. "Novel cascade aryne-capture/rearrangement reactions." Thesis, University of Huddersfield, 2014. http://eprints.hud.ac.uk/id/eprint/23743/.

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Arynes are reactive intermediates that have been an academic curiosity for over a century. A recent renaissance of interest in the chemistry of these intermediates can be traced back to the development of ortho-(silyl)aryl triflates as aryne precursors. The application of aryne chemistry outside academia has been precluded by the expense and laborious preparation of these precursors. Diphenyliodonium-2-carboxylate has been shown to be a stable and inexpensive benzyne precursor, however application has been limited due to the high temperature (>160 ºC) and long reaction times required to genera
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30

Karrakchou, Meryem. "Authentification et cascade: Définitions, mécanismes, recommandations." Doctoral thesis, Universite Libre de Bruxelles, 1993. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/212858.

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31

Bolton, Alan Graham. "Digital filters and cascade control compensators /." Title page, contents and abstract only, 1990. http://web4.library.adelaide.edu.au/theses/09PH/09phb694.pdf.

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32

Saucier, Antoine. "Cascade processes and fully developed turbulence." Thesis, McGill University, 1991. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=74674.

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The energy cascade process in turbulent flows is studied. Kolmogorov inertial range theories are critically reviewed and the multifractal characterization is discussed. Multiplicative cascade models are compared to the energy dissipation field (EDF) measured in the atmosphere. Landau's objection to the 1941 Kolmogorov theory is extended to the predictions of statistical fluid mechanics. The hypothesis $ rm Delta v( lambda L) { buildrel{d} over=} lambda sp{1/3} Delta v(L)$ is rejected with a statistical test. The moments $ rm langle( log varepsilon(L)) sp{p} rangle,$ where $ varepsilon$(L) deno
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33

Gallego, Juan. "Fragmentation in the cascade - Vlasov approach." Thesis, McGill University, 1989. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61869.

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34

Martinez-Botas, R. F. "Annular cascade aerodynamics and heat transfer." Thesis, University of Oxford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336114.

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35

Povey, ji Thomas. "On advances in annular cascade techniques." Thesis, University of Oxford, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289124.

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36

Hay, Kenneth Gillespie. "Gas sensing using quantum cascade lasers." Thesis, University of Strathclyde, 2010. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=12766.

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37

Houghton, M. "Gain in terahertz quantum cascade lasers." Thesis, University of Cambridge, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.604257.

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This thesis focuses on experiments involving coupled cavity THz QCLs. These take the form of either monolithic devices with etched gaps to form two cavities on the same device, or separate devices aligned under vacuum and at cryogenic temperatures using a specially built piezo-electric micropositioner system. After an introductory chapter briefly reviewing the current state of QCL research, processing techniques and other standard experimental techniques, the thesis begins with the presentation of some experiments dealing with the effects of optical feedback between the two cavities. This lead
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38

Hinsley, Joanne. "Novel palladium catalysts and cascade processes." Thesis, University of Leeds, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.400177.

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39

McCaffrey, Shaun. "Enantioselective Pd/In bimetallic cascade processes." Thesis, University of Leeds, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.432336.

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40

Demircan, Aydin. "Cascade reactions involving a furan core." Thesis, University of Sussex, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297561.

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41

Kumar, Sushil Ph D. Massachusetts Institute of Technology. "Development of terahertz quantum-cascade lasers." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/40501.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2007.<br>Includes bibliographical references (p. 321-340).<br>The terahertz or the far-infrared frequency range of the electromagnetic spectrum ( ... ) has historically been technologically underdeveloped despite having many potential applications, primarily due to lack of suitable sources of coherent radiation. Following on the remarkable development of mid-infrared ( ... ) quantum-cascade lasers (QCLs) in the past decade, this thesis describes the development of electrically-pumped t
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42

Han, Ningren. "Electrically tunable terahertz quantum cascade lasers." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/84723.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2013.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 113-118).<br>In this thesis, microelectromechanical systems (MEMS) assisted electrically tunable terahertz quantum cascade lasers (THz QCLs) are designed and demonstrated. Two MEMS tuner devices are proposed to achieve electrically
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43

Worrall, Christopher Henry. "Long wavelength Terahertz quantum cascade lasers." Thesis, University of Cambridge, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.612926.

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44

Dongmo, Guy Blaise. "Rank matrix cascade algorithm, hermite interpolation." Thesis, Stellenbosch : University of Stellenbosch, 2007. http://hdl.handle.net/10019.1/853.

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Thesis (DSc (Mathematical Sciences))--University of Stellenbosch, 2007.<br>ENGLISH ABSTRACT: (Math symbols have changed) Wavelet and subdivision techniques have developed, over the last two decades, into powerful mathematical tools, for example in signal analysis and geometric modelling. Both wavelet and subdivision analysis are based on the concept of a matrix–refinable function, i.e. a finitely supported matrix function which is self-replicating in the sense that it can be expressed as a linear combination of the integer shifts of its own dilation with factor 2: F = TAF = å k∈Z F(2 ・
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45

Wallace, Stephen. "A cascade approach towards the gephyrotoxins." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:1f7b55ec-0346-498c-be03-81f3b9fde2f5.

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The aim of this project was to develop a cascade approach towards perhydropyrrolo-[1,2-a]-quinolines and to apply this to the asymmetric synthesis of the gephyrotoxin alkoids. Chapters Two and Three outline the development of a synthetic route towards a range of cascade precursors, whilst Chapter Four outlines investigations into the enamine-Michael cascade. Central to understanding the cascade process was the discovery that the major product of the enamine-Michael cascade was the unusual tricyclic hydroquinium salt. This can subsequently be engaged in a diastereoselective inter- or intramolec
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46

Lingard, Hannah. "Cascade approaches to decahydroquinoline ring systems." Thesis, University of Oxford, 2010. http://ora.ox.ac.uk/objects/uuid:e0ff1123-eae7-47aa-b377-1a12346d2538.

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The aims of this project were to develop a cascade approach towards decahydroquinoline frameworks (Scheme I) and apply this to the synthesis of decahydroquinoline-containing natural products such as lycopodine, cermizine B and lepadin D (Scheme I). Scheme I. Several linear precursors were synthesized via a modular strategy. For example, lycopodine linear precursor i was synthesized in a total of 12 steps (Scheme II). Scheme II. Conditions for cyclization and hydrogenation were tested, with the diastereoselectivity examined in each system. For example, the lepadin linear precursor ii produced t
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47

Gambari, Johannes. "Nonlinear effects in quantum cascade lasers." Thesis, Imperial College London, 2011. http://hdl.handle.net/10044/1/7824.

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48

Nackley, Brittany B. "Temporal Dynamics of the Defense Cascade." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/99987.

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Understanding physiological responses to threat can inform therapeutic interventions for phobias, anxieties, and PTSD. The defense cascade is reviewed as a theoretical model that predicts behavioral and physiological responses to threats. Nineteen undergraduates (five male), average age 19.4 experienced a novel virtual reality (VR) threat scenario while their physiology was measured. The Subjective Units of Distress Scale (SUDS) was used as a self-report indicator of distress in the research setting. Averaged SUDS reports suggested that the VR stimulus was experienced as threatening for mo
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49

Vieira, Emanuel Sousa. "Cascade processes in directed complex networks." Master's thesis, Universidade de Aveiro, 2017. http://hdl.handle.net/10773/23482.

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Mestrado em Engenharia Física<br>In this thesis we study analytically and numerically the bootstrap percolation process in random uncorrelated directed complex networks. We formulate and analyze the bootstrap percolation process on both unweighted and weighted networks and also study a probability based percolation process. The considered percolation process has an associated activation threshold k where a node only gets active if it has at least k active neighboring nodes. We compare our results with analytical and numerical results obtained for undirected complex networks. We also an
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50

Birch, Peter. "Synthetic cascade sequences initiated by organoboranes." Thesis, University of York, 2012. http://etheses.whiterose.ac.uk/2798/.

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This project aims to combine radical reactions, initiated by organoboranes under mild conditions, with polar reactions to form industrially useful small molecules and polymers in one-pot processes. In Chapter 2, it is shown that commercially available organoborole, 2-propyl-1,3,2-benzodioxaborole (PBD), can be used to initiate radical reactions at room temperature, including the addition of organophosphorus hydride radical mediators to alkenes. Also, the polymerisation of maleimides has been achieved using PBD at room temperature. The hydroboration of alkenes with catecholborane can be used to
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