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Dissertations / Theses on the topic 'Open systems theory'

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1

Sentís, Manuel Lorenzo. "Quantum theory of open systems." Zürich : ETH, Eidgenössische Technische Hochschule Zürich, Institut für Theoretische Physik, 2002. http://e-collection.ethbib.ethz.ch/show?type=dipl&nr=172.

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2

Ossipov, Alexandre. "Open Mesoscopic Systems: beyond the Random Matrix Theory." Doctoral thesis, [S.l.] : [s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=969598173.

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3

Fong, Brendan. "The algebra of open and interconnected systems." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:79a23c8c-81a5-4cf1-a108-29ba7dfd8850.

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Herein we develop category-theoretic tools for understanding network-style diagrammatic languages. The archetypal network-style diagrammatic language is that of electric circuits; other examples include signal flow graphs, Markov processes, automata, Petri nets, chemical reaction networks, and so on. The key feature is that the language is comprised of a number of components with multiple (input/output) terminals, each possibly labelled with some type, that may then be connected together along these terminals to form a larger network. The components form hyperedges between labelled vertices, a
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4

Levi, Elliott Kendrick. "Information transfer in open quantum systems." Thesis, University of St Andrews, 2017. http://hdl.handle.net/10023/16690.

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This thesis covers open quantum systems and information transfer in the face of dissipation and disorder through numerical simulation. In Chapter 3 we present work on an open quantum system comprising a two-level system, single bosonic mode and dissipative environment; we have included the bosonic mode in the exact system treatment. This model allows us to gain an understanding of an environment's role in small energy transfer systems. We observe how the two-level system-mode coupling strength and the spectral density form characterising the environment interplay, affecting the system's cohere
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5

Collett, M. J. "Environmental correlations in the theory of open quantum systems." Thesis, University of Essex, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378362.

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6

Schaumeier, Julia Gertrud. "Self-organising resource allocation in open systems : theory and experiments." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/14302.

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Open, embedded multi-agent systems have applications in sensor and opportunistic networks, and in cloud and grid computing. Features of such systems include: no centralised control, competition for resources between autonomous agents, (un)intentional errors, and a speed and complexity of decisions beyond human capabilities. Moreover, there is a requirement to optimise performance with respect to multiple, possibly conflicting, criteria, for example longevity, occupancy and fairness. This thesis addresses the problem of engineering self-organised resource-allocation management schemes for open,
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7

Yu, Ting. "Approaches to open quantum systems : decoherence, localisation and all that." Thesis, Imperial College London, 1998. http://hdl.handle.net/10044/1/11479.

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8

Oreshkov, Ognyan. "Topics in quantum information and the theory of open quantum systems." Doctoral thesis, University of Southern California, Los Angeles, 2008. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/225666.

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9

May, Meredith Augusta. "Applications of Queuing Theory for Open-Pit Truck/Shovel Haulage Systems." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/19218.

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Surface mining is the most common mining method worldwide, and open pit mining accounts for more than 60% of all surface output. Haulage costs account for as much as 60% of the total operating cost for these types of mines, so it is desirable to maintain an efficient haulage system. As the size of the haulage fleet being used increases, shovel productivity increases and truck productivity decreases, so an effective fleet size must be chosen that will effectively utilize all pieces of equipment. One method of fleet selection involves the application of queuing theory to the haul cycle. Queuing
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10

Giraldi, Filippo. "Decoherence, Master Equation for Open Quantum Systems, and the Subordination Theory." Thesis, University of North Texas, 2005. https://digital.library.unt.edu/ark:/67531/metadc4812/.

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This thesis addresses the problem of a form of anomalous decoherence that sheds light into the spectroscopy of blinking quantum dots. The system studied is a two-state system, interacting with an external environment that has the effect of establishing an interaction between the two states, via a coherence generating coupling, called inphasing. The collisions with the environment produce also decoherence, named dephasing. Decoherence is interpreted as the entanglement of the coherent superposition of these two states with the environment. The joint action of inphasing and dephasing generates a
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11

Guidi, Hernan. "Open and closed-loop model identification and validation." Pretoria : [s.n.], 2009. http://upetd.up.ac.za/thesis/available/etd-07032009-170311/.

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12

Carlsson, Jimmy. "A practical approach toward architectures for open computational systems." Thesis, Blekinge Tekniska Högskola, Institutionen för programvaruteknik och datavetenskap, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-5821.

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By means of a systemic approach toward analysis and design of complex systems, we introduce the issue of implementing open computational systems on service-oriented architectures. We start by studying general systems theory, as it accounts for analysis and modeling of complex systems, and then compare three different implementation strategies toward system implementation. As such, the comparison is grounded in the notion of supporting architectures and, more specifically, in the practical case of a service-oriented layered architecture for communicating entities (SOLACE).<br>More material can
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13

Tempel, David Gabriel. "Time-Dependent Density Functional Theory for Open Quantum Systems and Quantum Computation." Thesis, Harvard University, 2012. http://dissertations.umi.com/gsas.harvard:10208.

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First-principles electronic structure theory explains properties of atoms, molecules and solids from underlying physical principles without input from empirical parameters. Time-dependent density functional theory (TDDFT) has emerged as arguably the most widely used first-principles method for describing the time-dependent quantum mechanics of many-electron systems. In this thesis, we will show how the fundamental principles of TDDFT can be extended and applied in two novel directions: The theory of open quantum systems (OQS) and quantum computation (QC). In the first part of this thesis, we p
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14

Manzini, Chiara. "Quantum kinetic models of open quantumsystems in semiconductors theory." Doctoral thesis, Scuola Normale Superiore, 2005. http://hdl.handle.net/11384/85708.

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From the introduction: The aim of the developed research is to contribute to the analytical study of quantum kinetic models of certain quantum systems, whose dynamics is time-irreversible due to the interaction with the environment; accordingly, they are called open. In particular, the models under examination have a well-grounded application to the simulation of nanoscale semiconductor devices, thus semiconductor physics is the background of reference for our work. The models are formulated according to the Wigner-function formalism, a well-known tool in both the physical and the mathematical
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15

Yurchenko, Aleksey. "Some problems in the theory of open dynamical systems and deterministic walks in random environments." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26549.

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Thesis (Ph.D)--Mathematics, Georgia Institute of Technology, 2009.<br>Committee Chair: Bunimovich, Leonid; Committee Member: Bakhtin, Yuri; Committee Member: Cvitanovic, Predrag; Committee Member: Houdre, Christian; Committee Member: Weiss, Howard. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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RUSSO, TOMMASO. "ON SOME OPEN PROBLEMS IN BANACH SPACE THEORY." Doctoral thesis, Università degli Studi di Milano, 2019. http://hdl.handle.net/2434/609289.

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The main line of investigation of the present work is the study of some aspects in the analysis of the structure of the unit ball of (infinite-dimensional) Banach spaces. In particular, we analyse some questions concerning the existence of suitable renormings that allow the new unit ball to possess a specific geometric property. The main part of the thesis is, however, dedicated to results of isometric nature, in which the original norm is the one under consideration. One of the main sources for the selection of the topics of investigation has been the recent monograph [GMZ16], entirely
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17

Hales, Robert Frederick Michael. "Two Applications of Semiclassical Techniques to Open Systems : Transition State Theory and Microcavity Lasers." Thesis, University of Bristol, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.525457.

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18

Guarnieri, G. "Characterizzation of dynamical properties of non-Markovian open quantum systems." Doctoral thesis, Università degli Studi di Milano, 2017. http://hdl.handle.net/2434/468262.

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In the present Thesis we study the behavior of multi-time correlation functions and of thermodynamical quantities such as heat in open quantum systems undergoing an evolution generally affected by the presence of memory effects, i.e. non-Markovian. In the last decade, a large part of the scientific community in this field has dedicated its efforts to the understanding, precise definition and quantification of non-Markovianity in the quantum realm and now we have at our disposal several benchmark results and a plethora of different estimators that allow to determine the degree of non-Markoviani
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Davies, I. "Optimal control of functional differential systems with application to transmission lines." Thesis, Coventry University, 2015. http://curve.coventry.ac.uk/open/items/11749285-3b9a-44cf-bc72-0d02c27141bc/1.

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Robust control is an aspect of control theory which explicitly considers uncertainties and how they affect robust stability in the analysis and design of control decisions. A basic requirement for optimal robust guaranteed control in a real life scenario is the stabilization of systems in the presence of uncertainties or perturbations. In this thesis, the system uncertainties are embedded into a norm bounded uncertainty elements. The perturbation function is modelled as a class of nonlinear uncertainty influencing a neutral system with infinite delay. It is assumed to have delay in state and i
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Nossal, Brigid Suzanne, and com au brigid@now. "Systems Psychodynamics and Consulting to Organisations in Australia." RMIT University. School of Health Sciences, 2007. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20080513.144938.

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Systems Psychodynamics is unique as an approach to consulting to organisations in the way it integrates three theory streams: psychoanalysis; group relations and open systems theory. Consultants who work in this way focus on the many layers of interactions and exchanges taking place both within organisations and at the interface between an organisation and its external environment. The territory for collaborative exploration with clients extends from interpersonal and group dynamics to service and product- related systems and processes. It is a holistic approach that creates opportunities for
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Pinna, Lorenzo. "On the controllability of the quantum dynamics of closed and open systems." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLX017/document.

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On etudie la contrôlabilité des systèmes quantiques dans deux contextes différents: le cadre standard fermé, dans lequel un système quantique est considéré comme isolé et le problème de contrôle est formulé sur l'équation de Schrödinger; le cadre ouvert qui décrit un système quantique en interaction avec un plus grand, dont seuls les paramètres qualitatifs sont connus, au moyen de l'équation de Lindblad sur les états.Dans le contexte des systèmes fermés on se focalise sur la classe intéressante des systèmes spin-boson, qui décrivent l'interaction entre un système quantique à deux niveaux et un
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22

Buchhold, Michael. "Thermalization and Out-of-Equilibrium Dynamics in Open Quantum Many-Body Systems." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-181786.

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Thermalization, the evolution of an interacting many-body system towards a thermal Gibbs ensemble after initialization in an arbitrary non-equilibrium state, is currently a phenomenon of great interest, both in theory and experiment. As the time evolution of a quantum system is unitary, the proposed mechanism of thermalization in quantum many-body systems corresponds to the so-called eigenstate thermalization hypothesis (ETH) and the typicality of eigenstates. Although this formally solves the contradiction of thermalizing but unitary dynamics in a closed quantum many-body system, it does neit
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23

Harper, Sally Anne. "Urban open space : user perceptions of the Avis dam environment." Diss., University of Pretoria, 1998. http://hdl.handle.net/2263/23461.

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From its infancy, environmental psychology [which concerns itself with the coinfluencing interface between people and places] has required attention to actual context, and attention to social relevance. There has always been an emphasis on research into real problems within a context of meaningful theory, and on results which have potential not only for individuals, but also for policy-makers and those who execute that policy. This environmental psychology study is about the potential role of green open space in contributing towards quality of life in the city generally. It is also about a spe
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Valyrakis, Manousos. "Initiation of Particle Movement in Turbulent Open Channel Flow." Diss., Virginia Tech, 2011. http://hdl.handle.net/10919/27289.

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The objective of this thesis is to investigate the flow conditions that lead to coarse grain entrainment at near incipient motion conditions. Herein, a new conceptual approach is proposed, which in addition to the magnitude of hydrodynamic force or flow power, takes into account the duration of the flow event. Two criteria for inception of grain entrainment, namely the critical impulse and critical energy concepts, are proposed and compared. These frameworks adopt a force or energy perspective, considering the momentum or energy transfer from each flow event to the particle respectively, to de
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25

Bungart, Stefan. "Organisations as social systems : a study into the necessary systemic conditions for the occurrence of 'social resonance' to ecological issues in organisations." Thesis, Coventry University, 1999. http://curve.coventry.ac.uk/open/items/bed42cb2-9552-4631-bd99-9c109f4c061f/1.

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Organisational research in English-speaking countries has long been focused on two main areas. Studies on micro-level have been concerned with the socio-psychological explanation of organisational phenomena, mostly on the level of the individual and groups. Macro-level studies have been concerned with structure for the explanation of organisational phenomena. Macro-level theories have mostly bracketed the individual, and neglected the psychological component or regarded the individual as an actor playing roles. Only recently has the study of organisations been extended to attempt a meso-level
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Greening, Philip. "The influence of market structure, collaboration and price competition on supply network disruptions in open and closed markets." Thesis, Cranfield University, 2013. http://dspace.lib.cranfield.ac.uk/handle/1826/8473.

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The relaxation of international boundaries has enabled the globalisation of markets making available an ever increasing number of specialised suppliers and markets. Inevitably this results in supply chains sharing suppliers and customers reflected in a network of relationships. Within this context firms buyers configure their supply relationships based on their perception of supply risk. Risk is managed by either increasing trust or commitment or by increasing the number of suppliers. Increasing trust and commitment facilitates collaboration and reduces the propensity for a supplier to exit th
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Jack, Gillian. "Modelling the current state and potential use of knowledge management in higher education institutions." Thesis, Coventry University, 2004. http://curve.coventry.ac.uk/open/items/6fb700eb-b638-fa36-9a65-0e90e1f17b80/1.

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This research explores the development of a framework appropriate to evaluate the readiness of a university to engage with knowledge management. Many universities are evolving from traditional bureaucratic, hierarchical structures to become more flexible, adaptable, commercially viable and competitive and knowledge management is becoming increasingly important in this respect. An over view of knowledge management clarifies what the concept is, and a critical review of current frameworks and models identifies gaps and weaknesses specifically in relation to empirical testing, theoretical underpi
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Morton, Josh. "Legitimation through openness : managing organisational legitimacy through open strategy in a pluralistic context." Thesis, Loughborough University, 2017. https://dspace.lboro.ac.uk/2134/28410.

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This research explores how an open strategy approach can be used to manage organisational legitimacy in a pluralistic context, characterised by the competing demands of key stakeholders. Open strategy demonstrates an interest in strategising processes becoming more inclusive and transparent (Hautz et al., 2016). Open strategy work to date has focused on its uses and implications, and how strategic inclusion and transparency are being displayed in different organisational contexts. Much open strategy literature also associates the central purpose of open strategising activity with organisations
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29

König, Christoph [Verfasser], Regina H. [Akademischer Betreuer] Mulder, and W. H. Adriaan [Akademischer Betreuer] Hofman. "Selection and allocation functions of teacher education systems - Development and test of a model based on Open Systems Theory / Christoph König. Betreuer: Regina H. Mulder ; W. H. Adriaan Hofman." Regensburg : Universitätsbibliothek Regensburg, 2014. http://d-nb.info/1059004860/34.

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Alqithami, Saad. "Network Organization Paradigm." OpenSIUC, 2016. https://opensiuc.lib.siu.edu/dissertations/1293.

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In a complex adaptive system, diverse agents perform various actions without adherence to a predefined structure. The achievement of collaborative actions will be the result of continual interactions among them that shape a dynamic network. Agents may form an ad hoc organization based on the dynamic network of interactions for the purpose of achieving a long-term objective, which we termed a Network Organization (NO). Fervent and agile communication on social networking sites provides opportunities for potential issues to trigger individuals into individual actions as well as the attraction an
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Rowe, B. David. "Cultural Leadership and Peace: An Educational Response to Religious Violence." unrestricted, 2007. http://etd.gsu.edu/theses/available/etd-04302007-101357/.

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Thesis (Ph. D.)--Georgia State University, 2007.<br>Title from file title page. Philo A. Hutcheson, committee chair; Theophus Smith, Susan Talburt, Douglas R. Davis, committee members. Electronic text (355 p.) : digital, PDF file. Description based on contents viewed Nov. 1, 2007. Includes bibliographical references (p. 348-355).
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Yuen-Zhou, Joel. "A Quantum Information Approach to Ultrafast Spectroscopy." Thesis, Harvard University, 2012. http://dissertations.umi.com/gsas.harvard:10317.

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In the first part of the dissertation, we develop a theoretical approach to analyze nonlinear spectroscopy experiments based on the formalism of quantum state (QST) and process tomography (QPT). In it, a quantum system is regarded as a black box which can be systematically tested in its performance, very much like an electric circuit is tested by sending a series of inputs and measuring the corresponding outputs, but in the quantum sense. We show how to collect a series of pump-probe or photon-echo experiments, and by varying polarizations and frequency components of the perturbations, reconst
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Filho, José Inácio da Costa. "Quantum non-Markovianity induced by classical stochastic noise." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/76/76131/tde-10102017-155811/.

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One of the main goals of the theory of open quantum systems is to devise methods which help preserve the quantum properties of a system interacting with its environment. One possible pathway to achieve this goal is to use non-Markovian reservoirs, characterized by information backflows and revivals of certain quantum properties. These reservoirs usually require advanced engineering techniques, which may turn their implementation impractical. In this dissertation we propose an alternative technique: the injection of a classical colored noise, which induces the desired quantum non-Markovianity.
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34

Scopa, Stefano. "Non-equilibrium dynamics of driven low-dimensional quantum systems." Thesis, Université de Lorraine, 2019. http://www.theses.fr/2019LORR0084/document.

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Cette thèse analyse certains aspects de la dynamique hors équilibre de systèmes quantiques unidimensionnels lorsqu’ils sont soumis à des champs externes dépendant du temps. Nous considérons plus particulièrement le cas des forçages périodiques, et le cas d’une variation temporelle lente d’un paramètre de l’Hamiltonien qui permet de traverser une transition de phase quantique. La première partie contient une présentation des notions, des modèles et des outils nécessaires pour comprendre la suite de la thèse, avec notamment des rappels sur les modèles quantiques critiques (en particulier sur les
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Scopa, Stefano. "Non-equilibrium dynamics of driven low-dimensional quantum systems." Electronic Thesis or Diss., Université de Lorraine, 2019. http://www.theses.fr/2019LORR0084.

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Cette thèse analyse certains aspects de la dynamique hors équilibre de systèmes quantiques unidimensionnels lorsqu’ils sont soumis à des champs externes dépendant du temps. Nous considérons plus particulièrement le cas des forçages périodiques, et le cas d’une variation temporelle lente d’un paramètre de l’Hamiltonien qui permet de traverser une transition de phase quantique. La première partie contient une présentation des notions, des modèles et des outils nécessaires pour comprendre la suite de la thèse, avec notamment des rappels sur les modèles quantiques critiques (en particulier sur les
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36

Kuhl, Ellen. "Theory and numerics of open system continuum thermodynamics spatial and material settings /." [S.l.] : [s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=971440492.

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Cervati, Neto Alaor. "Teoria de controle ótimo em sistemas abertos." Universidade Estadual Paulista (UNESP), 2018. http://hdl.handle.net/11449/152661.

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Submitted by Alaor Cervati Neto null (alaor_c_neto@yahoo.com.br) on 2018-02-01T18:40:52Z No. of bitstreams: 1 Dissertação.pdf: 2196475 bytes, checksum: eac241d8769cc274b9f87757c15cb5ef (MD5)<br>Rejected by Elza Mitiko Sato null (elzasato@ibilce.unesp.br), reason: Solicitamos que realize correções na submissão seguindo as orientações abaixo: 01) Primeira e segunda páginas antes da capa estão excedentes; 02) A ficha catalográfica deve ser na sequência da folha de rosto; 03) Na folha de aprovação deve constar a data (dia, mês e ano) da defesa 04) As folhas viii, 4, 42, 60, 66, 72, 74 e 78
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Schirrmeister, Dirk. "Zur Theorie photoinduzierter Dynamik offener Molekularsysteme: Kontrolle von Dissipation durch ultrakurze Laser-Pulse." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 1998. http://dx.doi.org/10.18452/14380.

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Zusammenfassung in PostScript In dieser Arbeit wird die photoinduzierte Dynamik offener Molekularsysteme unter dem Einfluß intensiver und ultrakurzer Laserpulse untersucht. Die Anregung eines Moleküls durch einen optischen ultrakurzen Laserpuls führt zu Übergängen zwischen verschiedenen elektronischen Zuständen. Dieser Anregungsprozeß wird begleitet von dissipativen Vorgängen wie Energie-- und Phasenrelaxation. Die Beschreibung dieser photoinduzierten Dynamik erfolgt mit Hilfe der Methode der Dichtematrixtheorie. Dabei zeigt die Ableitung der Quanten--Master--Gleichung im Rahmen des Pro
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Castro, Leonardo Andreta de. "Proteção de sistemas quânticos e o postulado da medida." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/76/76131/tde-20012017-090107/.

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O processamento de informação quântica requer medidas, muitas vezes precedidas devoluções unitárias. Uma descrição realista de um computador quântico também deve levar em conta que o sistema interage com um ambiente externo - distinto do observador - que o remove de sua evolução ideal, gerando erros. Neste trabalho, fazemos um estudo da dinâmica de sistemas quânticos observados múltiplas vezes ou continuamente, enquanto interagem com ambientes externos. Para tanto, empregamos uma equação mestra híbrida, que permite modelar uma interação contínua e markoviana do sistema com o medidor, enquanto
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Muharish, Essa Yahya M. "PACKET FILTER APPROACH TO DETECT DENIAL OF SERVICE ATTACKS." CSUSB ScholarWorks, 2016. https://scholarworks.lib.csusb.edu/etd/342.

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Denial of service attacks (DoS) are a common threat to many online services. These attacks aim to overcome the availability of an online service with massive traffic from multiple sources. By spoofing legitimate users, an attacker floods a target system with a high quantity of packets or connections to crash its network resources, bandwidth, equipment, or servers. Packet filtering methods are the most known way to prevent these attacks via identifying and blocking the spoofed attack from reaching its target. In this project, the extent of the DoS attacks problem and attempts to prevent it are
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Knoll, Carsten. "Regelungstheoretische Analyse- und Entwurfsansätze für unteraktuierte mechanische Systeme." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-209765.

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Die Arbeit ist der regelungstheoretischen Betrachtung von mechanischen Systemen mit mehr Freiheitsgraden als Stellgrößen gewidmet. Dabei werden Aspekte aus den Teilgebieten Modellbildung, Systemanalyse, Steuerungsentwurf und Reglerentwurf behandelt. Den Ausgangspunkt bilden die aus dem Lagrange-Formalismus resultierenden Bewegungsgleichungen, für welche neben verschiedene partiell linearisierten Zustandsdarstellungen auch eine spezielle Byrnes-Isidori-Normalform eingeführt wird. Im Unterschied zu einer früher vorgeschlagenen ähnliche Normalform existiert diese "Lagrange-Byrnes-Isidori-Normalf
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Anacker, Tony. "Incremental Scheme for Open-Shell Systems." Doctoral thesis, Universitätsbibliothek Chemnitz, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-197726.

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In this thesis, the implementation of the incremental scheme for open-shell systems with unrestricted Hartree-Fock reference wave functions is described. The implemented scheme is tested within robustness and performance with respect to the accuracy in the energy and the computation times. New approaches are discussed to implement a fully automated incremental scheme in combination with the domain-specific basis set approximation. The alpha Domain Partitioning and Template Equalization are presented to handle unrestricted wave functions for the local correlation treatment. Both orbital scheme
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43

Seicean, Sinziana. "Exploring Sleep and the Hispanic Paradox in Mexico-born U.S. Adult Immigrants." Case Western Reserve University School of Graduate Studies / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=case1278623005.

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44

Bagci, Gokhan Baris Kobe Donald Holm. "The nonadditive generalization of Klimontovich's S-theorem for open systems and Boltzmann's orthodes." [Denton, Tex.] : University of North Texas, 2008. http://digital.library.unt.edu/permalink/meta-dc-9124.

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45

Bagci, Gokhan Baris. "The Nonadditive Generalization of Klimontovich's S-Theorem for Open Systems and Boltzmann's Orthodes." Thesis, University of North Texas, 2008. https://digital.library.unt.edu/ark:/67531/metadc9124/.

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We show that the nonadditive open systems can be studied in a consistent manner by using a generalized version of S-theorem. This new generalized S-theorem can further be considered as an indication of self-organization in nonadditive open systems as prescribed by Haken. The nonadditive S-theorem is then illustrated by using the modified Van der Pol oscillator. Finally, Tsallis entropy as an equilibrium entropy is studied by using Boltzmann's method of orthodes. This part of dissertation shows that Tsallis ensemble is on equal footing with the microcanonical, canonical and grand canonical ense
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46

Keliri, Andriani. "Résonances de Floquet-Andreev dans les systèmes supraconducteurs hybrides." Electronic Thesis or Diss., Sorbonne université, 2023. http://www.theses.fr/2023SORUS558.

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Le sujet principal de cette thèse est la dynamique périodique en temps des jonctions supraconductrices. En particulier, on se concentre sur l'étude des propriétés spectrales, ainsi que de transport, de boîtes quantiques (QD) couplées à de multiples réservoirs supraconducteurs (S). De tels systèmes supraconducteurs hybrides ont pour caractéristique que la périodicité temporelle peut être simplement réalisée par l'application de tensions constantes (et commensurables) sur les réservoirs. En conséquence de cette périodicité, les états liés d'Andreev, localisés sur la boîte à l'équilibre (en l'abs
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47

Svensson, Patrik, and Shahab Ataei. "En organisation för stor för sin egna kompetens : En kvalitativ forskningsstudie på polismyndigheten Värmlands internkommunikation." Thesis, Karlstads universitet, Avdelningen för medie- och kommunikationsvetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-14577.

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Denna uppsats behandlar ämnet internkommunikation. Vi har valt att genomföra en undersökning om Polismyndigheten Värmlands internkommunikation då de innehar ett stort ansvar att bevara trygghet och säkerhet i samhället. Polismyndigheten har även stora krav på sig idag gällande dialog och grad av kommunikation inom organisationen för att effektivisera det polisiära arbetet. Syftet med denna uppsats är att erhålla en insikt om den interna kommunikationens funktion och hur den gestaltas utifrån chefernas och de anställdas perspektiv. I denna uppsats använder vi oss utav relevanta teorier inom org
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Kästle, Oliver [Verfasser], Andreas [Akademischer Betreuer] Knorr, Alexander [Akademischer Betreuer] Carmele, Andreas [Gutachter] Knorr, and Peter [Gutachter] Rabl. "Open quantum system theory from an information perspective / Oliver Kästle ; Gutachter: Andreas Knorr, Peter Rabl ; Andreas Knorr, Alexander Carmele." Berlin : Technische Universität Berlin, 2021. http://d-nb.info/123814067X/34.

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49

Gros, Jean-Baptiste. "Statistiques spatiales des cavités chaotiques ouvertes : applications aux cavités électromagnétiques." Thesis, Nice, 2014. http://www.theses.fr/2014NICE4150.

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Les chambres réverbérantes à brassage de modes (CRBM) utilisées dans l'industrie pour tester l'immunité ou la susceptibilité des systèmes électroniques embarqués (avion, automobile , smartphone,...) vis-à-vis des ondes électromagnétiques (EM) présentes dans leur environnement. Les CRBM doivent toutes répondre à un certain nombre de critères statistiques fixés par une norme internationale. Le critère principale étant l'obtention d'un champ statistiquement uniforme et isotrope autour de l'objet sous test. Afin améliorer et de mieux maîtriser les propriétés statistiques de ces systèmes pour des f
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50

Beyvers, Stephanie. "Selective excitation of adsorbate vibrations on dissipative surfaces." Phd thesis, Universität Potsdam, 2008. http://opus.kobv.de/ubp/volltexte/2008/2551/.

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The selective infrared (IR) excitation of molecular vibrations is a powerful tool to control the photoreactivity prior to electronic excitation in the ultraviolet / visible (UV/Vis) light regime ("vibrationally mediated chemistry"). For adsorbates on surfaces it has been theoretically predicted that IR preexcitation will lead to higher UV/Vis photodesorption yields and larger cross sections for other photoreactions. In a recent experiment, IR-mediated desorption of molecular hydrogen from a Si(111) surface on which atomic hydrogen and deuterium were co-adsorbed was achieved, following a vibrat
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