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Dissertations / Theses on the topic 'Q-space'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 February 2022

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1

Bachmaier, Fabian. "The free particle on q-Minkowski space." Diss., lmu, 2004. http://nbn-resolving.de/urn:nbn:de:bvb:19-19176.

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2

Bachmaier, Fabian. "The free particle on q-Minkowski space." [S.l.] : [s.n.], 2003. http://edoc.ub.uni-muenchen.de/archive/00001917.

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3

Caruyer, Emmanuel. "IRM de diffusion du Q-space : Acquisition et pré-traitements." Phd thesis, Université de Nice Sophia-Antipolis, 2012. http://tel.archives-ouvertes.fr/tel-00750144.

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Le but général de cette thèse est de proposer de nouvelles méthodes d'acquisition et de traitement du signal en imagerie par résonance magnétique (IRM) de diffusion, dans le but d'ouvrir de nouvelles perspectives dans la reconstruction de la structure de la matière blanche \emph{in vivo}. L'IRM de diffusion est une technique d'imagerie non invasive qui mesure localement, en chaque voxel, la diffusion des molécules d'eau. Le déplacement de ces dernières étant contraint par la présence de tissus, le fait de pouvoir caractériser la diffusion des molécules d'eau apporte des informations sur la nat

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4

Hagen, Stephanus Hendrikus Gerhardus ten. "Continuous state space Q-learning for control of nonlinear systems." [S.l. : Amsterdam : s.n.] ; Universiteit van Amsterdam [Host], 2001. http://dare.uva.nl/document/58530.

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5

Nagao, Kentaro. "K-theory of quiver varieties, q-Fock space and nonsymmetric Macdonald polynomials." 京都大学 (Kyoto University), 2009. http://hdl.handle.net/2433/124482.

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6

Larkin, Timothy J., Guilhem Pages, Allan M. Torres, and Philip W. Kuchel. "Rapid acquisition of NMR diffusion-diffraction q-space plots from erythrocytes with varying gradient orientation: Rapid acquisition of NMR diffusion-diffraction q-space plots fromerythrocytes with varying gradient orientation." Diffusion fundamentals 11 (2009) 67, S. 1-12, 2009. https://ul.qucosa.de/id/qucosa%3A14033.

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The rapid-acquisition of q-space data from 1H2O undergoing restricted diffusion in suspensions of red blood cells (RBCs) is made possible using a recently implemented pulse sequence, where the phase cycling of the radio-frequency pulses is reduced by using unbalanced pairs of bipolar magnetic field-gradient pulses. The q-space plots obtained with this pulse sequence show a shift in the position of the first diffraction minimum when compared to data from classical pulsed field gradient stimulated echo experiments. Diffusion simulations were used to investigate the effect of the additional delay

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7

Bigucci, Alessandro. "Near-Optimum Coding for q-ary Symmetric Channel with Application to Space Communications." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amslaurea.unibo.it/5292/.

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Questa Tesi aspira a mostrare un codice a livello di pacchetto, che abbia performance molto vicine a quello ottimo, per progetti di comunicazioni Satellitari. L’altro scopo di questa Tesi è quello di capire se rimane ancora molto più difficile maneggiare direttamente gli errori piuttosto che le erasures. Le applicazioni per comunicazioni satellitari ora come ora usano tutte packet erasure coding per codificare e decodificare l’informazione. La struttura dell’erasure decoding è molto semplice, perché abbiamo solamente bisogno di un Cyclic Redundancy Check (CRC) per realizzarla. Il problema n

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8

Larkin, Timothy J., Guilhem Pages, Allan M. Torres, and Philip W. Kuchel. "Rapid acquisition of NMR diffusion-diffraction q-space plots from erythrocytes with varying gradient orientation." Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-190535.

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The rapid-acquisition of q-space data from 1H2O undergoing restricted diffusion in suspensions of red blood cells (RBCs) is made possible using a recently implemented pulse sequence, where the phase cycling of the radio-frequency pulses is reduced by using unbalanced pairs of bipolar magnetic field-gradient pulses. The q-space plots obtained with this pulse sequence show a shift in the position of the first diffraction minimum when compared to data from classical pulsed field gradient stimulated echo experiments. Diffusion simulations were used to investigate the effect of the additional delay

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9

Upadhyay, Indrima. "ANALYSIS OF Q- LEARNING BASED GAME PLAYING AGENTS FOR ABSTRACT BOARD GAMES WITH INCREASING STATE-SPACE COMPLEXITY." Miami University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=miami1627681408588176.

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10

Zhou, Renjie. "Developments of Narrow-Linewidth Q-switched Fiber Laser, 1480 nm Raman Fiber Laser, and Free Space Fiber Amplifier." Thesis, The University of Arizona, 2011. http://hdl.handle.net/10150/202931.

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In the first chapter, a Q-switched fiber laser that is capable of generating transform-limited pulses based on single-frequency fiber laser seeded ring cavity is demonstrated. The output pulse width can be tuned from hundreds of nanoseconds to several microseconds. This Q-switched ring cavity fiber laser can operate over the whole C-band. In addition, a theoretical model is developed to numerically study the pulse characteristics, and the numerical results are in good agreements with the experimental results. In the next chapter, a Raman fiber laser is developed for generating signal at 1480 n

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11

Nicolas, Renaud, Florent Aubry, Jérémie Pariente, et al. "Water diffusion in q-space imaging as a probe of cell local viscosity and anomalous diffusion in grey and white matter." Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-186332.

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Extraction of accurate quantitative parameters to characterize water diffusion in complex porous media like brain tissue in neuroimaging is a challenging inverse problem, that depends on medium\'s structural and geometrical factors [1,3]. If the role of membranes is generally invoked, probe collisions with the insoluble cytoskeleton network and water hydrodynamic interactions with dissolved macromolecules and cytoskeleton occur as well [2]. The latter two interactions have been shown to determine the phenomenological “anomalous diffusion” of probes in the cytoplasm [4,5,6,7,8]. Additionally, t

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12

Nicolas, Renaud, Florent Aubry, Jérémie Pariente, et al. "Water diffusion in q-space imaging as a probe of cell local viscosity and anomalous diffusion in grey and white matter." Diffusion fundamentals 14 (2010) 3, S. 1-4, 2010. https://ul.qucosa.de/id/qucosa%3A12798.

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Extraction of accurate quantitative parameters to characterize water diffusion in complex porous media like brain tissue in neuroimaging is a challenging inverse problem, that depends on medium\''s structural and geometrical factors [1,3]. If the role of membranes is generally invoked, probe collisions with the insoluble cytoskeleton network and water hydrodynamic interactions with dissolved macromolecules and cytoskeleton occur as well [2]. The latter two interactions have been shown to determine the phenomenological “anomalous diffusion” of probes in the cytoplasm [4,5,6,7,8]. Additionally,

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13

Heinson, Yuli Wang. "Light scattering studies of irregularly shaped particles." Diss., Kansas State University, 2016. http://hdl.handle.net/2097/32517.

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Doctor of Philosophy<br>Physics<br>Christopher M. Sorensen<br>We present light scattering studies of irregularly shaped particles which significantly affect the climate. We built and calibrated our apparatus which was able to measure all six independent scattering matrix elements. Our apparatus detects light from 0.32° to 157° simultaneously. We studied all six scattering matrix elements of irregularly shaped Arizona Road Dust which behave differently than those of spheres. We strongly focused on the most important scattering matrix element – the phase function, scattered intensity vs. the sca

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14

Schoeman, Ilse Maria. "A theory of multiplier functions and sequences and its applications to Banach spaces / I.M. Schoeman." Thesis, North-West University, 2005. http://hdl.handle.net/10394/975.

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15

Galdames, Bravo Orlando Eduardo. "Duality theory for p-th power factorable operators and kernel operators." Doctoral thesis, Universitat Politècnica de València, 2013. http://hdl.handle.net/10251/31523.

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El presente trabajo está dedicado al análisis de una clase particular de operadores (lineales y continuos) entre espacios de Banach de funciones. El objetivo es avanzar en la teoría de los llamados operadores factorizables a la p-potencia analizando todos los aspectos de la dualidad. Esta clase de operadores ha demostrado ser de utilidad tanto en la teoría de factorización de operadores sobre espacios de Banach de funciones (teoría de Maurey-Rosenthal) como en el Análisis Armónico (dominios óptimos de la transformada de Fourier y operadores de convolución). A ¿n de desarrollar esta teoría

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16

Regan, David Gabriel. "NMR DIFFUSION MEASUREMENTS OF COMPARTMENTALIZED AND MULTICOMPONENT BIOLOGICAL SYSTEMS: Studies of Tropoelastin, the Self Association of N Methylacetamide, and q-Space Analysis of Real and Model Cell Suspensions." University of Sydney. School of Molecular and Microbial Biosciences, 2002. http://hdl.handle.net/2123/514.

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Molecular diffusion is an inherent feature of all fluid systems. The processes and interactions that characterize these systems are in some way dependent upon the mobility of the component molecules. Pulsed field-gradient spin-echo nuclear magnetic resonance (PGSE NMR) is a powerful tool for the study of molecular diffusion; for heterogeneous systems, such as those typically found in biology, this technique is unsurpassed in the diversity of systems that yield to its probing. The aim of the work presented in this thesis was to use an integrated NMR-based approach, in conjunction with computer

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17

Agyo, Sanfo David. "Bi-fractional transforms in phase space." Thesis, University of Bradford, 2016. http://hdl.handle.net/10454/14522.

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The displacement operator is related to the displaced parity operator through a two dimensional Fourier transform. Both operators are important operators in phase space and the trace of both with respect to the density operator gives the Wigner functions (displaced parity operator) and Weyl functions (displacement operator). The generalisation of the parity-displacement operator relationship considered here is called the bi-fractional displacement operator, O(α, β; θα, θβ). Additionally, the bi-fractional displacement operators lead to the novel concept of bi-fractional coherent states. The ge

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18

Agyo, Sanfo D. "Bi-fractional transforms in phase space." Thesis, University of Bradford, 2016. http://hdl.handle.net/10454/14522.

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The displacement operator is related to the displaced parity operator through a two dimensional Fourier transform. Both operators are important operators in phase space and the trace of both with respect to the density operator gives the Wigner functions (displaced parity operator) and Weyl functions (displacement operator). The generalisation of the parity-displacement operator relationship considered here is called the bi-fractional displacement operator, O(α, β; θα, θβ). Additionally, the bi-fractional displacement operators lead to the novel concept of bi-fractional coherent states.

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19

Roquefeuil, Alexis. "Confluence of quantum K-theory to quantum cohomology for projective spaces." Thesis, Angers, 2019. http://www.theses.fr/2019ANGE0019/document.

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En géométrie algébrique, les invariants de Gromov—Witten sont des invariants énumératifs qui comptent le nombre de courbes complexes dans une variété projective lisse qui vérifient des conditions d’incidence. En 2001, A. Givental et Y.P. Lee ont défini de nouveaux invariants, dits de Gromov—Witten K-théoriques, en remplaçant les définitions cohomologiques dans la construction des invariants de Gromov—Witten par leurs analogues K-théoriques. Une question essentielle est de comprendre comment sont reliées ces deux théories. En 2013, Iritani- Givental-Milanov-Tonita démontrent que les invariants

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20

Tan, Elvan. "Characterization Of Electromagnetic Wave Absorbing Properties Of Sic-based And Alumina Ceramic Woven Fabrics." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/3/12609619/index.pdf.

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Electromagnetic wave absorbing properties of SiC-based and alumina ceramic woven fabrics have been investigated. Electrical conductivities of SiC-based ceramic woven fabrics were modified by heat treatment in air resulting in their oxidation. Surface properties of alumina woven fabrics were altered by gold-sputtering resulting in a high conductivity layer on the surface of the wovens. Electromagnetic wave interactions of single layer and double layered combinations of these ceramic woven fabrics were determined in 17-40 GHz frequency range using &ldquo<br>free-space&rdquo<br>method. Electromag

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21

Talafha, Abdallah M. "Modified Stochastic Sine-Gordon Equation." OpenSIUC, 2014. https://opensiuc.lib.siu.edu/dissertations/973.

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The main focus of my dissertation is the Modified Stochastic Sine-Gordon Equation: utt = 2uxx − ut − sin(|u|^(&gamma)) + b(u, du/dt)dW/dt where &gamma > 0 is the parameter of the power of non-linearity, &delta &ge 0 is the magnitude of non-linearity, &alpha> 0 be the damping parameter, and &sigma the diffusion intensity, on one dimensional domain. We analyze the properties of the solution of the SPDE by the eigenfunctions approach allowing us to truncate the infinite-dimensional stochastic system (i.e the SDEs of Fourier coefficients related to the SPDE), to control its energy, existence,

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22

Nicolas, Renaud. "Développement de nouvelles séquences d'IRM de diffusion dédiées à la neuro-imagerie." Toulouse 3, 2012. http://www.theses.fr/2012TOU30283.

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Le sujet de cette thèse est dédié au développement d'une technique, l'IRM de diffusion, qui permet d'obtenir des images de propriétés micro-structurelles (inférieures à la taille du pixel obtenu par IRM) des milieux biologique, et à son application à l'étude du cerveau. La capacité de cette technique à révéler des modifications précoces de changement micro-structuraux qui sont associés à des modifications métaboliques énergétiques complexes en a fait une méthode de référence pour détecter précocement certaines pathologies focales telles les Accidents Vasculaires Cérébraux Ischémiques. Le lecte

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23

Knight, R. W. "Generalized tangent-disc spaces and Q-sets." Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.257958.

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24

Fick, Rutger. "Modélisation avancée du signal dMRI pour la caractérisation de la microstructure tissulaire." Thesis, Université Côte d'Azur (ComUE), 2017. http://www.theses.fr/2017AZUR4006/document.

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Cette thèse est dédiée à améliorer la compréhension neuro-scientifique à l'aide d'imagerie par résonance magnétique de diffusion (IRMd). Nous nous concentrons sur la modélisation du signal de diffusion et l'estimation par IRMd des biomarqueurs liés à la microstructure, appelé «Microstructure Imaging». Cette thèse est organisée en trois parties. Dans partie I nous commençons par la base de l'IRMd et un aperçu de l'anisotropie en diffusion. Puis nous examinons la plupart des modèles de microstructure utilisant PGSE, en mettant l'accent sur leurs hypothèses et limites, suivi par une validation pa

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25

Manganas, Phanee. "Oxidative regulation mechanisms in the mitochondrial intermembrane space." Thesis, University of Glasgow, 2017. http://theses.gla.ac.uk/8568/.

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Oxidative stress occurs when cells are unable to cope with the levels of various reactive oxygen species (ROS) that arise as part of regular cellular metabolism or in response to ionising radiation (H2O2, O2-, OH-). The most well studied ROS is H2O2, due to its dual role as a mediator of oxidative stress and a signalling molecule for many cellular pathways. Cells possess a number of different mechanisms to combat ROS, in order to prevent their levels from becoming toxic. In this thesis, we studied three different aspects of the antioxidant defence in Saccharomyces cerevisiae. In the first part

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26

Tatjana, Žikić. "Egzistencija nepokretne tačke u fazi strukturama." Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2002. https://www.cris.uns.ac.rs/record.jsf?recordId=73363&source=NDLTD&language=en.

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U ovoj tezi dokazane su teoreme o nepokretnoj tački koje predstavljaju jednoznačna i vi&scaron;eznačna uop&scaron;tenja Banahovog principa kontrakcije u verovatnosnim metričkim i fazi metričkim prostorima. Dokazana je teorema koja predstavlja uop&scaron;tenje teoreme o nepokretnoj tački za verovatnosnu ^-kontrakciju / :  S —* S,gde je  ( S ,  J7, T ) kompletan Mengerov prostor. Uveden je pojam jake (6n)-kontrakcije i dokazana je teorema koja predstavlja uop&scaron;tenje teoreme Sehgala i Bharuche-Reid kada je preslikavanje / :  S —> S jaka (6n)-kont

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27

Merlet, Sylvain. "Acquisition compressée en IRM de diffusion." Phd thesis, Université Nice Sophia Antipolis, 2013. http://tel.archives-ouvertes.fr/tel-00916582.

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Cette thèse est consacrée à l'élaboration de nouvelles méthodes d'acquisition et de traitement de données en IRM de diffusion (IRMd) afin de caractériser la diffusion des molécules d'eau dans les fibres de matière blanche à l'échelle d'un voxel. Plus particulièrement, nous travaillons sur un moyen de reconstruction précis de l'Ensemble Average Propagator (EAP), qui représente la fonction de probabilité de diffusion des molécules d'eau. Plusieurs modèles de diffusion tels que le tenseur de diffusion ou la fonction de distribution d'orientation sont très utilisés dans la communauté de l'IRMd afi

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28

Gareis, Stephan [Verfasser], and George [Akademischer Betreuer] Marinescu. "L^2-Cohomology of Coverings of q-convex Manifolds and Stein Spaces / Stephan Gareis. Gutachter: George Marinescu." Köln : Universitäts- und Stadtbibliothek Köln, 2015. http://d-nb.info/1084872455/34.

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29

Ling, Songbo [Verfasser], and Fabrizio [Akademischer Betreuer] Catanese. "Classification and Moduli Spaces of Surfaces of General Type with Pg = q =1 / Songbo Ling ; Betreuer: Fabrizio Catanese." Bayreuth : Universität Bayreuth, 2017. http://d-nb.info/113794448X/34.

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30

Smith, Craig. "Quantum groups at q=0, a Tannakian reconstruction theorem for IndBanach spaces, and analytic analogues of quantum groups." Thesis, University of Oxford, 2018. http://ora.ox.ac.uk/objects/uuid:e28b7312-3a47-473c-ac76-7d69db175309.

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This thesis is divided into the following three parts. <b>A categorical reconstruction of crystals and quantum groups at</b> q = 0. The quantum co-ordinate algebra A<sub>q</sub>(&gfr;) associated to a KacMoody Lie algebra g forms a Hopf algebra whose comodules are direct sums of finite dimensional irreducible U<sub>q</sub>(&gfr;) modules. In Part I we investigate whether an analogous result is true when q = 0. We classify crystal bases as coalgebras over a comonadic functor on the category of pointed sets and encode the monoidal structure of crystals into a bicomonadic structure. In doing this

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31

Afdideh, Fardin. "Block-sparse models in multi-modality : application to the inverse model in EEG/MEG." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAT074/document.

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De nombreux phénomènes naturels sont trop complexes pour être pleinement reconnus par un seul instrument de mesure ou par une seule modalité. Par conséquent, le domaine de recherche de la multi-modalité a émergé pour mieux identifier les caractéristiques riches du phénomène naturel de la multi-propriété naturelle, en analysant conjointement les données collectées à partir d’uniques modalités, qui sont en quelque sorte complémentaires. Dans notre étude, le phénomène d’intérêt multi-propriétés est l’activité du cerveau humain et nous nous intéressons à mieux la localiser au moyen de ses propriét

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32

Guha, Biswarup. "Surface-enhanced optomechanical disk resonators and force sensing." Thesis, Sorbonne Paris Cité, 2017. http://www.theses.fr/2017USPCC154/document.

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L'optomécanique est la science des interactions entre la lumière et les mouvements mécaniques. Ce rapport de thèse décrit des expériences réalisées avec des microdisques fabriqué dans différents résonateurs semi-conducteurs III-V: l'Arséniure de Gallium (GaAs), l'Arséniure d'Aluminium Gallium (AlGaAs) et l'Arséniure d'Indium Phosphide (InGaP). Ces matériaux sont compatibles avec les fonctionnalités de l’optoélectronique et procurent un couplage optomécanique géant. Pour améliorer les performances des résonateurs en GaAs, nous avons développé des méthodes de traitement de surface permettant de

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33

Kell, Martin. "On curvature conditions using Wasserstein spaces." Doctoral thesis, Universitätsbibliothek Leipzig, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-149614.

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This thesis is twofold. In the first part, a proof of the interpolation inequality along geodesics in p-Wasserstein spaces is given and a new curvature condition on abstract metric measure spaces is defined. In the second part of the thesis a proof of the identification of the q-heat equation with the gradient flow of the Renyi (3-p)-Renyi entropy functional in the p-Wasserstein space is given. For that, a further study of the q-heat flow is presented including a condition for its mass preservation.

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34

Harris, Wallace. "Facility Matters: The Perception Of Academic Deans Regarding The Role Of Facilities in Higher Education." UNF Digital Commons, 2014. http://digitalcommons.unf.edu/etd/525.

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The purpose of this study was to examine how academic deans perceived the characteristics of facility built environment and its impact on learning in higher education. Q methodology was used as the means to explore the subjective opinions of academic deans within the State of Florida regarding the facility built environment’s impact on learning in higher education. For this Q study, the concourse statements were the result of communications taken from the subject literature and participant responses to this study’s online concourse questionnaire. The resulting 32 item Q sample was sorted onlin

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35

Berenguer, Verdú Antonio José. "Analysis and design of efficient passive components for the millimeter-wave and THz bands." Doctoral thesis, Universitat Politècnica de València, 2017. http://hdl.handle.net/10251/84004.

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This thesis tackles issues of particular interest regarding analysis and design of passive components at the mm-wave and Terahertz (THz) bands. Innovative analysis techniques and modeling of complex structures, design procedures, and practical implementation of advanced passive devices are presented. The first part of the thesis is dedicated to THz passive components. These days, THz technology suffers from the lack of suitable waveguiding structures since both, metals and dielectric, are lossy at THz frequencies. This implies that neither conventional closed metallic structures used at micr

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36

Bachmaier, Fabian [Verfasser]. "The free particle on q-Minkowski space / vorgelegt von Fabian Bachmaier." 2003. http://d-nb.info/971100535/34.

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37

Shanbhag, Dattesh D. "Q-space analysis of lung morphometry with hyperpolarized ³He magnetic resonance spectroscopy /." 2007. http://wwwlib.umi.com/dissertations/fullcit/3282471.

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38

Chen, Lu-Yu, and 陳律宇. "A SOM-based Fuzzy Systems Q-learning in Continuous State and Action Space." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/u58495.

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碩士<br>國立中央大學<br>資訊工程研究所<br>94<br>In reinforcement learning, there is no supervisor to critically judge the chosen action at each step. The learning is through a trial-and-error procedure interacting with a dynamic environment. Q-learning is one popular approach to reinforcement learning. It is widely applied to problems with discrete states and actions and usually implemented by a look-up table where each item corresponds to a combination of a state and an action. However, the look-up table plementation of Q-learning fails in problems with continuous state and action space because an exhaustiv

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39

"FPGA Accelerator Architecture for Q-learning and its Applications in Space Exploration Rovers." Master's thesis, 2016. http://hdl.handle.net/2286/R.I.40834.

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abstract: Achieving human level intelligence is a long-term goal for many Artificial Intelligence (AI) researchers. Recent developments in combining deep learning and reinforcement learning helped us to move a step forward in achieving this goal. Reinforcement learning using a delayed reward mechanism is an approach to machine intelligence which studies decision making with control and how a decision making agent can learn to act optimally in an environment-unaware conditions. Q-learning is one of the model-free reinforcement directed learning strategies which uses temporal differences to es

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40

Huang, Zhi-Ting, and 黃誌廷. "Estimation of I/Q Imbalance and Carrier Frequency Offset for Orthogonal Space-Time Block Coded OFDM Systems." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/77124536409315874202.

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碩士<br>國立臺灣大學<br>電信工程學研究所<br>100<br>Nowadays, direct-conversion radio frequency (RF) receivers become more appealing due to its cost advantage. However, orthogonal frequency division multiplexing (OFDM) systems with direct-conversion RF receivers are very sensitive to non-idealities at the front-end of receiver, such as I/Q imbalance and carrier frequency offset (CFO). These non-idealities at the receiver result in inter-carrier interference (ICI). Accurate estimates of the non-idealities and channel response are required in OFDM systems. This thesis studies the CFO estimation for OFDM systems

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41

Vourdas, Apostolos. "Equivalence classes of coherent projectors in a Hilbert space with prime dimension: Q functions and their Gini index." 2020. http://hdl.handle.net/10454/17828.

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Yes<br>Coherent subspaces spanned by a finite number of coherent states are introduced, in a quantum system with Hilbert space that has odd prime dimension d. The set of all coherent subspaces is partitioned into equivalence classes, with d 2 subspaces in each class. The corresponding coherent projectors within an equivalence class, have the 'closure under displacements property' and also resolve the identity. Different equivalence classes provide different granularisation of the Hilbert space, and they form a partial order 'coarser' (and 'finer'). In the case of a two-dimensional coherent sub

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Hu, Hsu-Chia, and 胡煦佳. "Joint Blind Estimation of I/Q Imbalance and Carrier Frequency Offset for Orthogonal Space-Time Block Coded OFDM Systems." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/14940244071805934972.

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碩士<br>國立臺灣大學<br>電信工程學研究所<br>102<br>Orthogonal frequency division multiplexing (OFDM) has recently received considerable interest for its advantages in high-bit-rate transmissions over frequency-selective fading channels. Space-time block coding (STBC) has emerged as a powerful approach to exploit spatial diversity and to combat fading in multiple-input multiple-output (MIMO) wireless communication systems. However, OFDM systems with direct-conversion RF receivers are very sensitive to non-idealities at the front-end of receiver, such as I/Q imbalance and carrier frequency o&;#8629;set (CFO). T

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Pinto, Fernando Rui de Castro Guimarães. "Desenvolvimento de um filtro ativo paralelo com CSI e controlo de corrente no barramento CC." Master's thesis, 2013. http://hdl.handle.net/1822/40020.

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Dissertação de mestrado integrado em Engenharia Eletrónica Industrial e Computadores<br>A Qualidade de Energia Elétrica é um assunto cada vez mais importante devido ao crescente número de problemas e custos relacionados com a diminuição dos níveis de Qualidade de Energia Elétrica. Para compensar os atuais problemas de Qualidade de Energia Elétrica foram desenvolvidos os filtros ativos de potência, que possuem uma resposta temporal rápida, sendo capazes de se adaptar dinamicamente às condições do sistema que estão a compensar. Nesta Dissertação de Mestrado são apresentadas as principais t

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Haroske, Dorothee [Verfasser]. "Entropy numbers and approximation numbers in weighted function spaces of type Bsp,q and Fsp,q, eigenvalue distributions of some degenerate pseudodifferential operators / von Dorothee Haroske." 1995. http://d-nb.info/965444066/34.

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Jorge, Flávio Miguel da Silva. "High-order Earth-satellite propagation channel measurement and modelling at Ka and Q/V-bands." Doctoral thesis, 2020. http://hdl.handle.net/10773/28937.

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This work focuses on high-capacity spectral-efficient Earth-space microwave communication links, supporting the access to wider and less congested bandwidths and providing the required technological advances on radiowave propagation for the design and operation of system-technologies improving the spectral efficiency, proposing the operation of frequency-reuse schemes and polarization diversity techniques at Ka- and Q/V-bands. Because the suitable planning, successful deployment and effective, spectralefficient and interference-free, operation of all space-borne systems and services is

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Costa, Luís Carlos da Silva. "Conversor CC-CC para aplicação em filtro ativo paralelo do tipo fonte de corrente." Master's thesis, 2017. http://hdl.handle.net/1822/56556.

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Dissertação de mestrado em Engenharia Eletrónica Industrial e de Computadores<br>Atualmente, a utilização de cargas não lineares é cada vez mais frequente. Estas, originam problemas de qualidade de energia elétrica (QEE), resultando em várias consequências, como falhas em equipamentos eletrónicos, podendo causar prejuízos elevados em diversos setores. Os filtros ativos de potência, que também podem fazer interface com fontes de energia renovável, apresentam-se como uma boa solução para mitigar estes problemas. Nesta dissertação de mestrado apresentam-se as topologias de filtros ativos de potê

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Ravindran, B. "Solution Of Delayed Reinforcement Learning Problems Having Continuous Action Spaces." Thesis, 1996. http://etd.iisc.ernet.in/handle/2005/1725.

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