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Dissertations / Theses on the topic 'Entropic Time'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Ye, Cheng. "Entropic characterization and time evolution of complex networks." Thesis, University of York, 2016. http://etheses.whiterose.ac.uk/15550/.

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In this thesis, we address problems encountered in complex network analysis using graph theoretic methods. The thesis specifically centers on the challenge of how to characterize the structural properties and time evolution of graphs. We commence by providing a brief roadmap for our research in Chapter 1, followed by a review of the relevant research literature in Chapter 2. The remainder of the thesis is structured as follows. In Chapter 3, we focus on the graph entropic characterizations and explore whether the von Neumann entropy recently defined only on undirected graphs, can be extended t

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2

Scafetta, Nicola. "An entropic approach to the analysis of time series." Thesis, University of North Texas, 2001. https://digital.library.unt.edu/ark:/67531/metadc3033/.

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Statistical analysis of time series. With compelling arguments we show that the Diffusion Entropy Analysis (DEA) is the only method of the literature of the Science of Complexity that correctly determines the scaling hidden within a time series reflecting a Complex Process. The time series is thought of as a source of fluctuations, and the DEA is based on the Shannon entropy of the diffusion process generated by these fluctuations. All traditional methods of scaling analysis, instead, are based on the variance of this diffusion process. The variance methods detect the real scaling only if the

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3

Tomasevic, Marija. "Quantum Aspects of Space and Time." Doctoral thesis, Universitat de Barcelona, 2021. http://hdl.handle.net/10803/672688.

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In this thesis, we explore different ways in which spacetime exhibits peculiar properties when subjected to the rules of quantum mechanics. These rules are naturally implemented at the level of semiclassical physics, where the dynamical nature of the spacetime metric is neglected. In particular, we explore how quantum effects modify some of the fundamental statements of General Relativity, ranging from different possible solutions, such as traversable wormholes and time machines, to some of the more foundational conjectures, with an emphasis to the one of cosmic censorship. Chapter One takes

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4

Omer, Mohamoud. "Estimation of regularity and synchronism in parallel biomedical time series." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2017. https://www.cris.uns.ac.rs/record.jsf?recordId=101879&source=NDLTD&language=en.

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Objectives: Self-monitoring in health applications has already been recognized as a part of the mobile crowdsensing concept, where subjects, equipped with adequate sensors, share and extract information for personal or common benefit. Limited data transmission resources force a local analysis at wearable devices, but it is incompatible with analytical tools that require stationary and artifact-free data. The key objective of this thesis is to explain a computationally efficient binarized cross-approximate entropy, (X)BinEn, for blind cardiovascular signal processing in environments where energ

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5

Rodrigues, Vitor Hugo. "Aspectos da transmissão e processamento de informação em canto de anuros." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/41/41135/tde-22052009-141706/.

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Os sistemas biológicos interagem com o ambiente em que vivem de muitas formas, e uma das principais formas na qual essa interação se dá é pela transmissão de mensagens, de diversas maneiras. A transmissão de mensagens por vias sonoras, em animais, é uma questão muito abordada em muitos estudos por ser uma importante via de comunicação utilizada por diversos tipos de sistemas biológicos. Este trabalho tem como objetivo verificar, pelo viés da Teoria da Informação de Shannon, se através da organização das séries temporais referentes à comunicação é possível observar a diminuição de geração de en

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6

Schwill, Stephan. "Entropy analysis of financial time series." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/entropy-analysis-of-financial-time-series(7e0c84fe-5d0b-41bc-96c6-5e41ffa5b8fe).html.

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This thesis applies entropy as a model independent measure to address research questions concerning the dynamics of various financial time series. The thesis consists of three main studies as presented in chapters 3, 4 and 5. Chapters 3 and 4 apply an entropy measure to conduct a bivariate analysis of drawdowns and drawups in foreign exchange rates. Chapter 5 investigates the dynamics of investment strategies of hedge funds using entropy of realised volatility in a conditioning model. In all three studies, methods from information theory are applied in novel ways to financial time series. As I

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7

Culpepper, Sarah Elizabeth. "Musical time and information theory entropy." Thesis, University of Iowa, 2010. https://ir.uiowa.edu/etd/659.

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Many theorists have connected information content in music with the listener's perception of the passage of time. This thesis uses the construct of information theory entropy, developed in the 1940s by Bell Labs engineer Claude Shannon, to describe the passage of time in Webern's music. Entropy scores are computed based on pitches, intervals, CSEGs, and pc-sets; these scores are then used to examine the first of the Five Canons, op. 16, and the fourth of the Five Movements for String Quartet, op. 5.

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8

Penner, Irina. "Dynamic convex risk measures." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 2008. http://dx.doi.org/10.18452/15745.

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In dieser Arbeit werden verschiedene Eigenschaften von dynamischen konvexen Risikomaßen für beschränkte Zufallsvariablen untersucht. Dabei gehen wir vor allem der Frage nach, wie die Risikobewertungen in verschiedenen Zeitpunkten von einander abhängen, und wie sich solche Zeitkonsistenzeigenschaften in der Dynamik der Penalty-Funktionen und Risikoprozesse widerspiegeln. Im Kapitel 2 widmen wir uns zunächst der starken Zeitkonsistenz und charakterisieren diese mithilfe von Akzeptanzmengen, Penalty-Funktionen und einer gemeinsamen Supermartingaleigenschaft des Risikoprozesses und seiner Penal

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9

Paillou, Nathan. "Feasibility of road detection withinforest environment in SAR images." Electronic Thesis or Diss., université Paris-Saclay, 2025. http://www.theses.fr/2025UPAST019.

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Cette thèse porte sur la détection de routes en imagerie SAR dans le but long terme d'évaluer la traficabilité de celles-ci, notamment pour le déploiement de véhicules militaires.Les routes sont des éléments dont la taille vue par le SAR peut-être extrêmement réduite, selon l'orientation de celles-ci. La rugosité influe sur l'intensité du signal et est dépendante de la fréquence du capteur utilisé. Les matériaux qui constituent les routes ne sont pas les mêmes selon les régions que l'on observe : cela peut aller du chemin de terre, à l'autoroute à plusieurs voies goudronnée. Les abords de la r

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10

Magnusson, John. "Finding time-based listening habits in users music listening history to lower entropy in data." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-300043.

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In a world where information, entertainment and e-commerce are growing rapidly in terms of volume and options, it can be challenging for individuals to find what they want. Search engines and recommendation systems have emerged as solutions, guiding the users. A typical example of this is Spotify, a music streaming company that utilises users listening data and other derived metrics to provide personalised music recommendation. Spotify has a hypothesis that external factors affect users listening preferences and that some of these external factors routinely affect the users, such as workout ro

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11

Basset, Nicolas. "Volumetry of timed languages and applications." Thesis, Paris Est, 2013. http://www.theses.fr/2013PEST1073/document.

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Depuis le début des années 90, les automates temporisés et les langages temporisés ont été largement utilisés pour modéliser et vérifier les systèmes temps réels. Ces langages ont été aussi été largement étudiés d'un point de vue théorique. Plus récemment Asarin et Degorre ont introduit les notions de volume et d'entropie des langages temporisés pour quantifier la taille de ces langages et l'information que ses éléments contiennent. Dans cette thèse nous construisons de nouveaux développements à cette théorie (que nous appelons volumétrie des langages temporisés) et l'appliquons a plusieurs pr

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12

Wang, Songbo. "Long-time behaviors of dynamics with mean field interactions." Electronic Thesis or Diss., Institut polytechnique de Paris, 2025. http://www.theses.fr/2025IPPAX020.

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Cette thèse est consacrée à l'étude des comportements en temps long des dynamiques avec des interactions de champ moyen et des systèmes de particules associés. Pour la plupart des cas traités dans la thèse, la condition structurelle pour les comportements en temps long est la convexité plate de la fonctionnelle d'énergie de champ moyen, qui est différente de la convexité de déplacement étudiée dans les travaux classiques de transport optimal et de flot de gradient. La thèse est composée de trois parties. Dans la première partie, nous étudions les dynamiques de Langevin de champ moyen suramorti

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13

Huang, Lumeng. "Transport through Georeservoirs: Spatial Entropy in Hydraulic Properties, and Temporal Entropy in Residence Time Distributions." Wright State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=wright1275920344.

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14

Sevil, Hakkı Erhan Özdemir Semahat. "On the predictabiliyt of time series by metric entropy/." [s.l.]: [s.n.], 2006. http://library.iyte.edu.tr/tezler/master/makinamuh/T000543.pdf.

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Thesis (Master)--İzmir Institute of Technology, İzmir, 2006.<br>Keywords: Time series analysis, Nonlinear analysis, condition monitoring, fault prognosis, machine health. Includes bibliographical references (leaves 48-49).

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15

Tánchez, Luis Eduardo Ortiz. "Entropies and predictability of variability indices of the tropical Pacific." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2004. http://dx.doi.org/10.18452/15055.

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Die folgende Arbeit befasst sich mit der Vorhersagbarkeit und der zeitlichen Struktur von Indizes der klimatischen Variabilität des tropischen Pazifiks, bekannt in der Jahrzentenskala als El-Nino-Southern Oscillation (ENSO). Untersucht wurden die Zeitreihen der Anomalien und Persistenzen der Southern Oscillation Index (SOI), den Multivariate ENSO Index (MEI) und die Meeresoberflächentemperatur (SST). Methoden der dynamischen und bedingten schannonschen Entropien wurden für die Untersuchung der Vorhersagbarkeit von symbolischen Sequenzen der Zeitreihen angewendet. Die Untersuchung der bedingte

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16

Hofmann, Bernd, and Romy Krämer. "Maximum entropy regularization for calibrating a time-dependent volatility function." Universitätsbibliothek Chemnitz, 2004. http://nbn-resolving.de/urn:nbn:de:swb:ch1-200401213.

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We investigate the applicability of the method of maximum entropy regularization (MER) including convergence and convergence rates of regularized solutions to the specific inverse problem (SIP) of calibrating a purely time-dependent volatility function. In this context, we extend the results of [16] and [17] in some details. Due to the explicit structure of the forward operator based on a generalized Black-Scholes formula the ill-posedness character of the nonlinear inverse problem (SIP) can be verified. Numerical case studies illustrate the chances and limitations of (MER) versus Tikhonov reg

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17

Mao, Dong. "Biological time series classification via reproducing kernels and sample entropy." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2008. http://wwwlib.umi.com/cr/syr/main.

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18

Jamasebi, Reza. "COMPUTATIONAL PHENOTYPE DERIVED FROM PHYSIOLOGICAL TIME SERIES: APPLICATION TO SLEEP DATA ANALYSIS." Case Western Reserve University School of Graduate Studies / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=case1220467153.

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19

Minerich, Mary J. "Observatory: Instruments for Entropy on a Cincinnati Hillside." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1470045238.

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20

Kaffashi, Farhad. "Variability analysis & its applications to physiological time series data." online version, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=case1181072302.

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21

Pavão, Rodrigo. "Entropia informacional e aprendizagem de sequências." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/41/41135/tde-21092011-135012/.

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Experiências armazenadas acerca de regularidades passadas permitem a previsão do ambiente e, consequentemente, a possibilidade de ações antecipadas. Esta capacidade cognitiva é expressa em modelos de aprendizagem de sequências, que são capazes de acessar a previsibilidade das sequências de eventos e gerar descrições do desempenho em protocolos experimentais como a tarefa de tempo de reação serial. Nos experimentos 1, 2 e 3 deste trabalho, a abordagem informacional foi aplicada à descrição do desempenho na tarefa de tempo de reação serial. A relação entre medidas de entropia e desempenho na tar

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22

Massaroppe, Lucas. "Caracterização da conectividade entre regiões cerebrais via entropia aproximada e causalidade de Granger." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/3/3142/tde-04112011-140951/.

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Essa dissertação apresenta o desenvolvimento métodos para caracterização da conectividade entre séries temporais neurofisiológicas. Utilizam-se metodologias provenientes da Teoria da Informação Entropias Aproximada e Amostral para representar a complexidade da série no tempo, o que permite inferir como sua variabilidade se transfere a outras sequências, através do uso da coerência parcial direcionada. Para cada sistema analisado: (1) Faz-se uma transformação em outro, relacionando-o às medidas de entropia, (2) Estima-se a conectividade pela coerência parcial direcionada e (3) Avalia-se a rob

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23

Löhr, Wolfgang. "Models of Discrete-Time Stochastic Processes and Associated Complexity Measures." Doctoral thesis, Universitätsbibliothek Leipzig, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-38267.

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Many complexity measures are defined as the size of a minimal representation in a specific model class. One such complexity measure, which is important because it is widely applied, is statistical complexity. It is defined for discrete-time, stationary stochastic processes within a theory called computational mechanics. Here, a mathematically rigorous, more general version of this theory is presented, and abstract properties of statistical complexity as a function on the space of processes are investigated. In particular, weak-* lower semi-continuity and concavity are shown, and it is argued

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24

Zhang, Chaoen. "Long time behaviour of kinetic equations." Thesis, Université Clermont Auvergne‎ (2017-2020), 2019. http://www.theses.fr/2019CLFAC056.

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Cette thèse est consacrée au comportement à long terme de l'équation cinétique de Fokker-Planck et de l'équation de McKean-Vlasov. Le manuscrit est composé d'une introduction et de six chapitres. L'équation cinétique de Fokker-Planck est un exemple de base de la théorie de l'hypocoercivité de Villani qui affirme la décroissance exponentielle dans le temps en l'absence de coercivité. Dans son mémoire AMS, Villani a prouvé l'hypocoercivité de l'équation cinétique de Fokker-Planck en H^1(\mu), L^2(\mu) ou entropie. Cependant, une condition sur la bornitude de l'Hessien de l'hamiltonien a été impo

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Castro, Pareja Carlos Raul. "Real-time 3D elastic image registration." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1086185793.

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Thesis (Ph. D.)--Ohio State University, 2004.<br>Title from first page of PDF file. Document formatted into pages; contains xv, 105 p. : ill. (some col.). Advisor: Jogikal Jagadeesh, Department of Electrical and Computer Engineering. Includes bibliographical references (p. 101-105).

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Kirsch, Matthew Robert. "Signal Processing Algorithms for Analysis of Categorical and Numerical Time Series: Application to Sleep Study Data." Case Western Reserve University School of Graduate Studies / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=case1278606480.

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27

Ames, Allison Jennifer. "Monte Carlo Experiments on Maximum entropy Constructive Ensembles for Time Series Analysis and Inference." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/32571.

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In econometric analysis, the traditional bootstrap and related methods often require the assumption of stationarity. This assumption says that the distribution function of the process remains unchanged when shifted in time by an arbitrary value, imposing perfect time-homogeneity. In terms of the joint distribution, stationarity implies that the date of the first time index is not relevant. There are many problems with this assumption however for time series data. With time series, the order in which random realizations occur is crucial. This is why theorists work with stochastic processes, wit

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28

Gordon, Christopher. "Adiabatic and entropy perturbations in cosmology." Thesis, University of Portsmouth, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369474.

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Löhr, Wolfgang. "Models of Discrete-Time Stochastic Processes and Associated Complexity Measures." Doctoral thesis, Max Planck Institut für Mathematik in den Naturwissenschaften, 2009. https://ul.qucosa.de/id/qucosa%3A11017.

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Many complexity measures are defined as the size of a minimal representation in a specific model class. One such complexity measure, which is important because it is widely applied, is statistical complexity. It is defined for discrete-time, stationary stochastic processes within a theory called computational mechanics. Here, a mathematically rigorous, more general version of this theory is presented, and abstract properties of statistical complexity as a function on the space of processes are investigated. In particular, weak-* lower semi-continuity and concavity are shown, and it is argued

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30

Tao, Wenjie. "Time resolved temperature and pressure based methodology for direct and indirect combustion noise separation." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLC009/document.

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L’objectif de la thèse est le développement d'une stratégie pour quantifier expérimentalement le bruit indirect et le séparer du bruit direct, puisque le bruit direct et indirect co-existent dans la plupart des applications. La configuration retenue pour l'étude est un banc expérimental avec une tuyère et la stratégie proposée a pour l’objectif de mesurer les fonctions de transfert de la tuyère. Le premier chapitre définit les fonctions de transfert de la tuyère utilisée dans l'étude comme référence pour la validation de la stratégie. Le deuxième chapitre présente une configuration originale q

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Schambach, Georges. "L'épaisseur du temps : ses effets esthétiques dans l'architecture." Thesis, Paris 1, 2017. http://www.theses.fr/2017PA01H321.

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La présente thèse vise à défendre la valeur esthétique du temps inscrit dans l’architecture. Elle considère le temps à travers la notion d’événement qu’elle met à l’épreuve sur un objet : le village de Viens dans le Vaucluse. L’événement du temps inscrivant partout des inégalités et des différences, l’analyse systématique de l’architecture permet de construire une grammaire plastique du temps. Cette grammaire se caractérise par l’hétérogénéité des matériaux, des actions et des usages qui participent chacun à leur manière et dans leurs interactions à la temporalisation de l’architecture. Le tem

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Miklósy, Jiří. "Využití prostředků umělé inteligence na finančních trzích." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2013. http://www.nusl.cz/ntk/nusl-223952.

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Tato práce se zabývá návrhem, realizací a optimalizací systému určenímu k obchodování na finančních trzích, konkrétně s technologickými firmami trhu NASDAQ. K tomuto účelu jsou využívány technické indicatory a hlavně neuronových sítí. Vlastní řešení je pak realizováno v prostředi MATLAB.

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Miner, Lauren A. "Surrender to the Spinning: poems." VCU Scholars Compass, 2015. http://scholarscompass.vcu.edu/etd/3813.

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This collection of poems explores themes of time and space, energy, entropy and decay, and the frames we use to resist the inevitable trend toward disorder that defines a human experience of the observable universe.

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Li, Chang. "Complexity Analysis of Physiological Time Series with Applications to Neonatal Sleep Electroencephalogram Signals." Case Western Reserve University School of Graduate Studies / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=case1345657829.

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Puangthongthub, Sitthichok Serre Marc L. "Bayesian Maximum Entropy space/time analysis of ambient particulate matter and mortality in Thailand." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2006. http://dc.lib.unc.edu/u?/etd,518.

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Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2006.<br>Title from electronic title page (viewed Oct. 10, 2007). "... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Environmental Sciences and Engineering, School of Public Health." Discipline: Environmental Sciences and Engineering; Department/School: Public Health.

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Herrmann, Klaus [Verfasser]. "Maximum Entropy Models for Time-Varying Moments applied to Daily Financial Returns / Klaus Herrmann." Aachen : Shaker, 2011. http://d-nb.info/1074087976/34.

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Snyder, Selena Tyr. "Time Series Modeling of Clinical Electroencephalogram Data - An Information Theory Approach." Ohio University Honors Tutorial College / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ouhonors1524830090342372.

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Visaya, Maria Vivien V. "A lower estimate of the topological entropy from a one-dimensional reconstruction of time series." 京都大学 (Kyoto University), 2006. http://hdl.handle.net/2433/136722.

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Hoffmann, Karl Heinz, Kathrin Kulmus, Christopher Essex, and Janett Prehl. "Between Waves and Diffusion: Paradoxical Entropy Production in an Exceptional Regime." MDPI AG, 2018. https://monarch.qucosa.de/id/qucosa%3A33157.

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The entropy production rate is a well established measure for the extent of irreversibility in a process. For irreversible processes, one thus usually expects that the entropy production rate approaches zero in the reversible limit. Fractional diffusion equations provide a fascinating testbed for that intuition in that they build a bridge connecting the fully irreversible diffusion equation with the fully reversible wave equation by a one-parameter family of processes. The entropy production paradox describes the very non-intuitive increase of the entropy production rate as that bridge is pass

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Marchelli, Leopoldo Francisco Barletta. "O conceito de entropia informacional permite prever a aprendizagem serial, em ratos?" Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/41/41135/tde-10072012-105117/.

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Prever eventos ambientais, com base em memórias sobre regularidades passadas, é uma das funções fundamentais de sistemas nervosos complexos. Eventos ordenados serialmente ou sequências estruturadas de estímulos permitem extrair informação passível de descrição formal que define seu padrão serial. Esse padrão inclui informações temporais e espaciais que facultam prever os próximos eventos da sequência, possibilitando a preparação prévia do organismo para lidar com sua ocorrência. Não surpreende que animais, incluindo o ser humano, aprendam, de maneira relativamente rápida, sobre regras e estrut

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Einar, Marcus. "Implementing and Testing Self-Timed Rings on a FPGA as Entropy Sources." Thesis, Linköpings universitet, Informationskodning, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-119724.

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Random number generators are basic building blocks of modern cryptographic systems. Usually pseudo random number generators, carefully constructed deter- ministic algorithms that generate seemingly random numbers, are used. These are built upon foundations of thorough mathematical analysis and have been subjected to stringent testing to make sure that they can produce pseudo random sequences at a high bit-rate with good statistical properties. A pseudo random number generator must be initiated with a starting value. Since they are deterministic, the same starting value used twice on the same p

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Gordan, Mimić. "Nelinearna dinamička analiza fizičkih procesa u žiivotnoj sredini." Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2016. https://www.cris.uns.ac.rs/record.jsf?recordId=101258&source=NDLTD&language=en.

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Ispitivan  je  spregnut  sistem  jednačina  za  prognozu  temperature  na povr&scaron;ini  i  u  dubljem sloju zemlji&scaron;ta.  Računati  su  Ljapunovljevi eksponenti,  bifurkacioni dijagram, atraktor i analiziran je domen re&scaron;enja. Uvedene su nove informacione mere  bazirane naKolmogorovljevoj kompleksnosti,  za kvantifikaciju  stepena nasumičnosti u vremenskim serijama,.  Nove mere su primenjene na razne serije dobijene merenjem fizičkih faktora životne sredine i pomoću klimatskih modela.<b

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Banks, Jess M. "Chaos and Learning in Discrete-Time Neural Networks." Oberlin College Honors Theses / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=oberlin1445945609.

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Chakroun, Walid. "Time-resolved stagnation temperature and pressure measurements in the vortex street behind a cylinder." Thesis, Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/90963.

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Recent theoretical and numerical investigations revealed the prospect that the instantaneous total temperature is nonuniform around vortices. For low Mach number flows, the instantaneous total pressure was also shown to become nonuniform in such a similar manner that the near-wake patterns of instantaneous total pressure exhibit almost exact facsimiles of these of total temperature. Here, the time-accurate measurements of the fluctuating total temperature and pressure are presented by placing an aspirating probe in the vortex street behind a cylinder. The data, obtained at a uniform upstream M

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Sonnenwald, Frederick C. "Identifying the residence time distributions of urban drainage structures from solute transport data using maximum entropy deconvolution." Thesis, University of Sheffield, 2014. http://etheses.whiterose.ac.uk/5468/.

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Solute transport, the processes of water carrying particles through flow, is affected by the bulk mixing that the flow experiences. Improved understanding of solute transport can therefore lead to improved understanding of bulk mixing processes. The Residence Time Distribution (RTD) is a non-parametric model that more fully describes solute transport than traditional models, and therefore can provide additional insight into the underlying mixing processes. As a predictive model, a downstream concentration profile can be expressed as the convolution of an upstream concentration profile with an

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Bosch, Francesco Bruno Perrota. "Informes." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/16/16136/tde-13062017-131543/.

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Tudo inicia com o verbete de um dicionário não convencional. A revista Documents, na qual se publicava o Dictionnaire Critique, era editada pelo escritor francês Georges Bataille quando ele escreveu sobre o informe: um termo que \"serve para desclassificar\"; um vocábulo que não existe para dar significado a determinadas coisas, mas para instigar \"tarefas\"; uma noção antagônica a toda \"sobrecasaca matemática\"; uma disrupção ao academicismo \"que geralmente demanda que cada coisa tenha sua forma\". Esta dissertação fundamenta-se na acepção batailliana, destrinchando nuances, revisitando múl

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Lopes, Elsa Rosa Arantes. "Análise não linear de séries temporais e aplicações à Psicologia." Master's thesis, Universidade de Évora, 2009. http://hdl.handle.net/10174/20031.

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Nesta dissertação estudámos as séries temporais que representam a complexa dinâmica do comportamento. Demos especial atenção às técnicas de dinâmica não linear. As técnicas fornecem-nos uma quantidade de índices quantitativos que servem para descrever as propriedades dinâmicas do sistema. Estes índices têm sido intensivamente usados nos últimos anos em aplicações práticas em Psicologia. Estudámos alguns conceitos básicos de dinâmica não linear, as características dos sistemas caóticos e algumas grandezas que caracterizam os sistemas dinâmicos, que incluem a dimensão fractal, que indica a compl

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Huselius, Gylling Kira. "Quadratic sample entropy as a measure of burstiness : A study in how well Rényi entropy rate and quadratic sampleentropy can capture the presence of spikes in time-series data." Thesis, Umeå universitet, Institutionen för matematik och matematisk statistik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-130593.

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Requests to internet servers do not in general behave in a manner which can be easily modelled and forecast with typical time-series methods, but often have a significant presence of spikes in the data, a property we call “burstiness”. In this thesis we study various entropy measures and their properties for different distributions, both theoretically and via simulation, in order to better find out how these measures could be used to characterise the predictability and burstiness of time series. We find that a low entropy can indicate a heavy-tailed distribution, which for time series correspo

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Martyn, Raewyn. "DAY FOLDER." VCU Scholars Compass, 2013. http://scholarscompass.vcu.edu/etd/3039.

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Provisional or unfinished images, forms and actions can sustain their status by continuing to change. This can resist programmed experience of their state, and shift their relationship as images within time. The sub-aesthetics of the unfinished and entropic can alter our understanding of where and how images are formed and located within time. My paintings each exist within their own emergent systems of time, structure and productive disorder. This thesis discusses these ideas in relation to DAY FOLDER and other work made during my MFA studies.

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Kingsnorth, Andrew P. "Measurement of physical activity, sedentary time and continuous glucose concentrations : novel techniques for behavioural profiling." Thesis, Loughborough University, 2017. https://dspace.lboro.ac.uk/2134/25492.

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STUDY 1. INTRODUCTION. Insufficient physical activity is a major risk factor for developing type 2 diabetes. Using isotemporal substitution models, the influence of replacing modest durations of sedentary time with physical activity on diabetes risk scores can be studied. The aims of this study were to examine the relationship between diabetes risk scores, sedentary time and physical activity measured using wrist worn accelerometry, and to model the changes in risk scores by reallocating movement behaviours from lower to a higher intensity. METHODS. Data from 251 (93 males; aged 56.7 ± 8.8) pa

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