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Dissertations / Theses on the topic 'Computation loops'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Luz, Cleber Silva Ferreira da. "Metodologia e ferramentas para paralelização de laços perfeitamente aninhados com processamento heterogêneo." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/3/3141/tde-22052018-134742/.

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Aplicações podem apresentar laços perfeitamente aninhados que demandam um alto poder de processamento. Diversas aplicações científicas contêm laços aninhados em suas estruturas. Tais laços podem processar computações heterogêneas. Uma solução para reduzir o tempo de execução desta classe de aplicações é a paralelização destes laços. A heterogeneidade dos tempos de execução de computações presentes nas iterações de laços perfeitamente aninhados demanda uma paralelização adequada visando uma distribuição de carga homogênea entre os recursos computacionais para reduzir a ociosidade de tais recurs

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Sonavane, U. B. "Computational study of anticodon loops of tRNAs having modified nucleosides." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 2002. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/2346.

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3

Atabaki, Nima. "Experimental and computational studies of loop heat pipes." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=100314.

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Computational and experimental investigations of fluid flow and heat transfer aspects of loop heat pipes (LHPs) are presented in this thesis. The overall goal is to formulate and develop cost-effective mathematical models and numerical solution methods for computer simulations of LHPs. This work has five distinct parts.<br>First, a basic network thermofluid model of conventional LHPs operating under steady-state conditions is proposed, implemented, tested, and applied. It illustrates the main steps in the formulation of such models. The capabilities of this basic model are assessed by applying

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Akupatni, Vivek Bharath. "My4Sight: A Human Computation Platform for Improving Flu Predictions." Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/56579.

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While many human computation (human-in-the-loop) systems exist in the field of Artificial Intelligence (AI) to solve problems that can't be solved by computers alone, comparatively fewer platforms exist for collecting human knowledge, and evaluation of various techniques for harnessing human insights in improving forecasting models for infectious diseases, such as Influenza and Ebola. In this thesis, we present the design and implementation of My4Sight, a human computation system developed to harness human insights and intelligence to improve forecasting models. This web-accessible system sim

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Ravishankar, Mahesh. "Automatic Parallelization of Loops with Data Dependent Control Flow and Array Access Patterns." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1400085733.

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6

Ó, Nuanáin Cárthach. "Connecting time and timbre: computational methods for generative rhythmic loops in symbolic and signal domains." Doctoral thesis, Universitat Pompeu Fabra, 2018. http://hdl.handle.net/10803/482191.

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The practice of music composition often stems from a small idea or motif that blossoms into a complete work through careful application of repetition, variation and a dash of inspiration. In the highly rhythmic and repetitive strain of music that is electronic dance, this motif is the fundamental building block known as the loop, and is accorded greater importance than any other style. While other genres can depend upon long-established rules governing things like harmonic structure and form, many dance tracks do not stray far from its fundamental central theme in the traditional sense. Rather

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7

Wong, Samuel Wing Kwong. "Statistical Computation for Problems in Dynamic Systems and Protein Folding." Thesis, Harvard University, 2013. http://dissertations.umi.com/gsas.harvard:11036.

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Inference for dynamic systems and conformational sampling for protein folding are two problems motivated by applied data, which pose computational challenges from a statistical perspective. Dynamic systems are often described by a set of coupled differential equations, and methods of parametric estimation for these models from noisy data can require repeatedly solving the equations numerically. Many of these models also lead to rough likelihood surfaces, which makes sampling difficult. We introduce a method for Bayesian inference on these models, using a multiple chain framework that exploi

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Görries, Simon. "ATHENA Space Telescope: Line of Sight Control with a Hexapod in the Loop." Thesis, KTH, Optimeringslära och systemteori, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-215922.

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The Advanced Telescope for High-Energy Astrophysics, Athena, is an x-ray telescope with a 2000 kg mirror module mounted on a six degree of freedom hexapod mechanism. It is currently assessed in a phase A feasibility study as L-class mission in the European Space Agency’s Cosmic Vision 2015-2025 plan with a launch foreseen in 2028. The total mass of the spacecraft is approximately 8000 kg, which is mainly distributed to the mirror module on the one side and to the focal plane module on the other side of the telescope tube. Such a design is without precedent in any European mission and imposes s

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9

Allmendinger, Richard. "Tuning evolutionary search for closed-loop optimization." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/tuning-evolutionary-search-for-closedloop-optimization(d54e63e2-7927-42aa-b974-c41e717298cb).html.

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Closed-loop optimization deals with problems in which candidate solutions are evaluated by conducting experiments, e.g. physical or biochemical experiments. Although this form of optimization is becoming more popular across the sciences, it may be subject to rather unexplored resourcing issues, as any experiment may require resources in order to be conducted. In this thesis we are concerned with understanding how evolutionary search is affected by three particular resourcing issues -- ephemeral resource constraints (ERCs), changes of variables, and lethal environments -- and the development of

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10

Buss, Aaron Thomas. "Closing the developmental loop on the behavioral and neural dynamics of flexible rule-use." Diss., University of Iowa, 2013. https://ir.uiowa.edu/etd/4949.

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Executive function (EF) is a central aspect of cognition that undergoes significant changes in early childhood. Changes in EF in early childhood are robustly predictive of academic achievement and general quality of life measures later in adulthood. I develop a dynamic neural field (DNF) model which provides a process-based account of behavior and developmental change in a key task used to probe the early development of executive function--the Dimensional Change Card Sort (DCCS) task. In the DCCS, children must flexibly switch from sorting cards either by shape or color to sorting by the other

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11

Law, Deify. "Computational Modeling and Simulations of Hydrodynamics for Air-Water External Loop Airlift Reactors." Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/27991.

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External loop airlift reactors are widely used for biochemical applications such as syngas fermentation and wastewater treatment. To further understand the inherent gas-liquid flow physics within the reactors, computational modeling and simulations of hydrodynamics for air-water external loop airlift reactors were investigated. The gas-liquid flow dynamics in a bubble column were simulated using a FORTRAN code developed by Los Alamos National Laboratory, CFDLib, which employs an Eulerian-Eulerian ensemble averaged method. A two-dimensional Cartesian coordinate system was used to conduct an ex

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12

Borrman, Tyler M. "Measuring Stability of 3D Chromatin Conformations and Identifying Neuron Specific Chromatin Loops Associated with Schizophrenia Risk." eScholarship@UMMS, 2020. https://escholarship.umassmed.edu/gsbs_diss/1111.

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The 23 pairs of chromosomes comprising the human genome are intricately folded within the nucleus of each cell in a manner that promotes efficient gene regulation and cell function. Consequently, active gene rich regions are compartmentally segregated from inactive gene poor regions of the genome. To better understand the mechanisms driving compartmentalization we investigated what would occur if this system was disrupted. By digesting the genome to varying sizes and analyzing the fragmented 3D structure over time, our work revealed essential laws governing nuclear compartmentalization. At a f

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Cedeno, Vanessa Ines. "Pipelines for Computational Social Science Experiments and Model Building." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/91445.

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There has been significant growth in online social science experiments in order to understand behavior at-scale, with finer-grained data collection. Considerable work is required to perform data analytics for custom experiments. In this dissertation, we design and build composable and extensible automated software pipelines for evaluating social phenomena through iterative experiments and modeling. To reason about experiments and models, we design a formal data model. This combined approach of experiments and models has been done in some studies without automation, or purely conceptually.

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Choi, Yoonjoo. "Protein loop structure prediction." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:bd5c1b9b-89ba-4225-bc17-85d3f5067e58.

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This dissertation concerns the study and prediction of loops in protein structures. Proteins perform crucial functions in living organisms. Despite their importance, we are currently unable to predict their three dimensional structure accurately. Loops are segments that connect regular secondary structures of proteins. They tend to be located on the surface of proteins and often interact with other biological agents. As loops are generally subject to more frequent mutations than the rest of the protein, their sequences and structural conformations can vary significantly even within the same pr

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de, Souza Althea Caroline. "The use of computational fluid dynamics to simulate the flow in a high recirculation airlift reactor." Thesis, University of Portsmouth, 2000. https://researchportal.port.ac.uk/portal/en/theses/the-use-of-computational-fluid-dynamics-to-simulate-the-flow-in-a-high-recirculation-airlift-reactor(2dd55384-1826-4ef9-8f01-3b6f8e86aaee).html.

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Maidens, John Norman. "Scalable computation of viability kernels and a viability-theoretic approach to guaranteeing safety for closed-loop medical devices." Thesis, University of British Columbia, 2012. http://hdl.handle.net/2429/42719.

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As closed-loop controllers become increasingly prevalent in medical technology, increasing emphasis is being placed on ensuring that such systems operate in a safe manner. In our approach to guaranteeing the safe operation of a physiologic closed-loop control system, we wish to provide a mathematical guarantee that, despite limited control authority, the system’s state can be confined to a region designated as safe. The largest subset of the safe region for which there exists an admissible control input that keeps the state within the safe region is known as the viability kernel, or maximal co

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Thurnham, A. J. "Computational modelling of the neural systems involved in schizophrenia." Thesis, University of Hertfordshire, 2008. http://hdl.handle.net/2299/1842.

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The aim of this thesis is to improve our understanding of the neural systems involved in schizophrenia by suggesting possible avenues for future computational modelling in an attempt to make sense of the vast number of studies relating to the symptoms and cognitive deficits relating to the disorder. This multidisciplinary research has covered three different levels of analysis: abnormalities in the microscopic brain structure, dopamine dysfunction at a neurochemical level, and interactions between cortical and subcortical brain areas, connected by cortico-basal ganglia circuit loops; and has c

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Li, Kuiyu. "Computing Homological Features for Shapes." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1282072779.

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19

Lagerkvist, Love. "Computation as Strange Material : Excursions into Critical Accidents." Thesis, Malmö universitet, Institutionen för konst, kultur och kommunikation (K3), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-43639.

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Waking up in a world where everyone carries a miniature supercomputer, interaction designers find themselves in their forerunners dreams. Faced with the reality of planetary-scale we have to confront the task of articulating approaches responsive this accidental ubiquity of computation. This thesis attempts such a formulation by defining computation as a strange material, a plasticity shaped equally by its technical properties and the mode of production by which is its continuously re-produced. The definition is applied through a methodology of excursions — participatory explorations into two

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20

Barrios, Nahuel. "Yang-Mills and Quantum Chromodynamics correlation functions from the Curci-Ferrari model at two-loop accuracy." Electronic Thesis or Diss., Institut polytechnique de Paris, 2022. http://www.theses.fr/2022IPPAX081.

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La Chromodynamique Quantique (QCD) est une théorie de jauge bien établie qui décrit la dynamique des quarks et des gluons. Au niveau analytique, les observables physiques ne peuvent être calculées que lorsque la jauge est fixée. La méthode standard pour y parvenir est la méthode de Faddeev-Popov (FP), qui introduit comme sous-produit des champs auxiliaires non physiques, les "fantômes". D'autre part, le couplage de jauge de la QCD devient faible pour des impulsions très élevées, ce qui fait de la théorie des perturbations (TP) un outil de calcul approprié dans cette limite. L'approche perturba

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Fan, Fengtao. "Computing Topological Features of Data and Shapes." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1385999908.

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Angelo, Gabriel. "Análise numérica da dinâmica do escoamento em circuitos de circulação natural." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/85/85133/tde-20092013-092635/.

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Circuitos de convecção natural ou sistemas de circulação natural são empregados em diversas áreas da engenharia. Reatores nucleares refrigerados a água utilizam circuitos de circulação natural como método passivo de seguranca. Em situações críticas, sem qualquer controle externo, o sistema permanece em segurança por suas próprias características de funcionamento (intrinsecamente seguro). O trabalho proposto consiste em estudar numericamente o circuito de circulação natural de água, localizado no Instituto de Pesquisas Energéticas e Nucleares / Comissão Nacional de Energia Nuclear em São Paulo,

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23

Nallapu, Bhargav Teja. "A closed loop framework of decision-making and learning in primate prefrontal circuits." Thesis, Bordeaux, 2019. http://www.theses.fr/2019BORD0300.

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Cette thèse propose de construire un cadre de travail de modélisation systémique, pour aider à la compréhension de l'organisation des systèmes associant le cortex préfrontal (PFC) et les ganglions de la base (BG) et de leurs interactions fonctionnelles dans les processus de prise de décision et de comportement dirigé par les buts chez les humains. Un environnement de jeu vidéo, Minecraft, est utilisé pour concevoir des expériences. Elles visent à tester le jeu vidéo dans un environnement qui pourrait être plus complexe et réaliste, si besoin. Ce cadre, avec l'expérimentation virtuelle, forme u

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Primo, Amedeo. "Cutting Feynman Amplitudes: from Adaptive Integrand Decomposition to Differential Equations on Maximal Cut." Doctoral thesis, Università degli studi di Padova, 2017. http://hdl.handle.net/11577/3426809.

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In this thesis we discuss, within the framework of the Standard Model (SM) of particle physics, advanced methods for the computation of scattering amplitudes at higher-order in perturbation theory. We offer a new insight into the role played by the unitarity of scattering amplitudes in the theoretical understanding and in the computational simplification of multi-loop calculations, at both the algebraic and the analytical level. On the algebraic side, generalized unitarity can be used, within the integrand reduction method, to express the integrand associated to a multi-loop amplitude as a su

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Torres, Daniel Seidenberger. "Simulador pediátrico InCor: desenvolvimento de um modelo hidráulico do sistema circulatório pediátrico com ajustes automatizados de pressões." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/3/3154/tde-27082018-150622/.

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Os dispositivos de assistência ventricular (DAVs) podem ser utilizados para a estabilização hemodinâmica de pacientes à espera do transplante cardíaco. Os avanços nas tecnologias e a utilização de materiais biocompatíveis vem contribuindo para o desenvolvimento de dispositivos com dimensões reduzidas e menor trauma ao sangue. A avaliação do desempenho desses dispositivos demanda a utilização de simuladores hidráulicos do sistema circulatório que reproduzam as pressões e fluxos existentes nas condições fisiológicas de interesse. Este trabalho tem como objetivo o desenvolvimento de um simulador

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Héricé, Charlotte. "Mécanismes de la sélection de l'action et de la prise de décision dans les ganglions de la base : approche par un modèle connexionniste." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0234/document.

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Les structures du système nerveux responsables des modalités de la prise de décision forment un circuit constitué par les ganglions de la base, le cortex, le thalamus et leurs nombreuses interconnexions. Ce circuit peut être décrit comme un ensemble de boucles fonctionnant en parallèle et interagissant en différents points. Des interactions entre ces boucles et de la plasticité de leurs connexions émergent les choix et donc les actions d’un individu. Ces comportements émergents et les phénomènes d’apprentissage qui en découlent sont abordés à travers une approche en boucle fermée dans laquelle

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Léonard, Marielle. "Approche didactique et instrumentale de la pensée informatique : focus sur le concept de motif." Electronic Thesis or Diss., Université de Lille (2022-....), 2024. http://www.theses.fr/2024ULILH034.

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En France, depuis 2016, l'initiation à la programmation informatique est présente dans les curricula scolaires de l'école obligatoire. L'objectif de cette thèse est de comprendre le processus de conceptualisation lors de la résolution de puzzles de programmation par des sujets âgés de 7 à 15 ans. À cette fin, nous combinons les apports respectifs de la théorie des champs conceptuels (Vergnaud, 1991) et de l'analyse de traces d'interaction dans un EIAH. Nous nous concentrons sur le concept de motif, en particulier lors des premières confrontations avec la notion de boucle en programmation par b

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Ericson, Julia. "Modelling Immediate Serial Recall using a Bayesian Attractor Neural Network." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-291553.

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In the last decades, computational models have become useful tools for studying biological neural networks. These models are typically constrained by either behavioural data from neuropsychological studies or by biological data from neuroscience. One model of the latter kind is the Bayesian Confidence Propagating Neural Network (BCPNN) - an attractor network with a Bayesian learning rule which has been proposed as a model for various types of memory. In this thesis, I have further studied the potential of the BCPNN in short-term sequential memory. More specifically, I have investigated if the

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Zidi, Mohamed Sadok. "Calcul à une boucle avec plusieurs pattes externes dans les théories de jauge : la bibliothèque Golem95." Thesis, Grenoble, 2013. http://www.theses.fr/2013GRENY031/document.

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Les calculs de précision dans les théories de jauge jouent un rôle très important pour l’étude de la physique du Modèle Standard et au-delà dans les super-collisionneurs de particules comme le LHC, TeVatron et ILC. Par conséquent, il est extrêmement important de fournir des outils du calcul d’amplitudes à une boucle stables, rapides, efficaces et hautement automatisés. Cette thèse a pour but de développer la bibliothèque d’intégrales Golem95. Cette bibliothèque est un programme écrit en Fortran95, qui contient tous les ingrédients nécessaires pour calculer une intégrale scalaire ou tensorielle

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Lumia, Luca. "Digital quantum simulations of Yang-Mills lattice gauge theories." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/22355/.

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I metodi di calcolo tradizionali per le teorie di gauge su reticolo risultano problematici in regioni di diagrammi di fase a grandi valori del potenziale chimico o quando sono utilizzate per riprodurre la dinamica in tempo reale di un modello. Tali problemi possono essere evitati da simulazioni quantistiche delle teorie di gauge su reticolo, le quali stanno diventando sempre più riproducibili sperimentalmente, grazie ai recenti progressi tecnologici. In questa tesi formuliamo una versione delle teorie di Yang-Mills su reticolo appropriata per risolvere il problema della dimensione infinita del

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Rance, Guillaume. "Commande H∞ paramétrique et application aux viseurs gyrostabilisés." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS152/document.

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Cette thèse porte sur la commande H∞ par loop-shaping pour les systèmes linéaires à temps invariant d'ordre faible avec ou sans retard et dépendant de paramètres inconnus. L'objectif est d'obtenir des correcteurs H∞ paramétriques, c'est-à-dire dépendant explicitement des paramètres inconnus, pour application à des viseurs gyrostabilisés.L'existence de ces paramètres inconnus ne permet plus l'utilisation des techniques numériques classiques pour la résolution du problème H∞ par loop-shaping. Nous avons alors développé une nouvelle méthodologie permettant de traiter les systèmes linéaires de dim

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Abramo, Kristin N. "Building the Interphase Nucleus: A study on the kinetics of 3D chromosome formation, temporal relation to active transcription, and the role of nuclear RNAs." eScholarship@UMMS, 2020. https://escholarship.umassmed.edu/gsbs_diss/1099.

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Following the discovery of the one-dimensional sequence of human DNA, much focus has been directed on microscopy and molecular techniques to learn about the spatial organization of chromatin in a 3D cell. The development of these powerful tools has enabled high-resolution, genome-wide analysis of chromosome structure under many different conditions. In this thesis, I focus on how the organization of interphase chromatin is established and maintained following mitosis. Mitotic chromosomes are folded into helical loop arrays creating short and condensed chromosomes, while interphase chromosomes

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Zambrano, Martínez Jorge Luis. "Efficient Traffic Management in Urban Environments." Doctoral thesis, Universitat Politècnica de València, 2019. http://hdl.handle.net/10251/129865.

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[ES] En la actualidad, uno de los principales desafíos a los que se enfrentan las grandes áreas metropolitanas es la congestión provocada por el tráfico, la cual se ha convertido en un problema importante al que se enfrentan las autoridades de cada ciudad. Para abordar este problema es necesario implementar una solución eficiente para controlar el tráfico que genere beneficios para los ciudadanos, como reducir los tiempos de viaje de los vehículos y, en consecuencia, el consumo de combustible, el ruido, y la contaminación ambiental. De hecho, al analizar adecuadamente la demanda de tráfico, es

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Wu, Chih-Chung, and 吳志忠. "Data and Computation Partitions in Parallel Computation of Loops." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/94929483365932553546.

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Lee, Chia-Lin, and 李佳霖. "A Study on Effective Computation and Data Decomposition Techniques for Non-uniform Dependence Loops." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/27442890416385956491.

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碩士<br>國立交通大學<br>資訊工程系<br>87<br>In distributed shared memory multiprocessors, local memory access are much faster than remote access. For the sake of reducing remote communication, the array elements in programs must be precisely distributed to local memory for parallel execution. In this thesis, we have developed an efficient computation and data decomposition method to reduce interprocessor communication. Firstly, computation and data decomposition are mapped onto virtual processors, and the data decomposition pattern is analyzed to minimize the cost of data reorganization communication. By u

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Chen, I.-Fan, and 陳逸凡. "Computational identification and laboratory validation of microRNA and transcription factor-mediated feed-forward loops." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/53334108049208099263.

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碩士<br>國立陽明大學<br>生物醫學資訊研究所<br>100<br>Abstract MicroRNAs (miRNAs) are post-transcriptional regulatory molecules that silence gene expression in animals and plants. Recent studies suggest that a miRNA and a transcription factor (TF) might form a network where they collectively regulate a common target gene. Nonetheless the detailed mechanism is still unclear. This thesis hopes to discover such network motifs and to decipher the underlining biological mechanisms. Using publicly available data (TargetScan, miRGen and cisRED), we have identified a potentially recurrent miRNA-mediated feed-forward lo

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Singh, Ashutosh Kr. "Numerical Analysis of Performance of Closed-Loop Pulsating Heat Pipe." Thesis, 2013. http://ethesis.nitrkl.ac.in/5427/1/211ME3193.pdf.

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This presents a computational study on the heat transfer characteristics of closed loop pulsating heat pipe (CLPHPs). However modeling of a CLPHP system in GAMBIT has many challenging issues due to the complexity and multi-physics nature of the system. So, the closed loop pulsating heat pipe modeled here has no wick material inside it as it present in heat pipe. The closed loop pulsating heat pipe has no complex structure so it is to be modeled. Flow visualization was conducted for the closed loop pulsating heat pipe using ANSYS Fluent 13.0. With appropriate boundary conditions we can visualiz

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Shirdel, Elize Astghik. "NAViGaTing the Micronome: A Systematic Study of both the External Effects of MicroRNAs on Gene Repression networks, and the Contribution of microRNA Terminal Loops to MicroRNA Function." Thesis, 2012. http://hdl.handle.net/1807/34921.

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The first aim of this thesis is to examine relationships between microRNAs targeting gene networks, combining knowledge from microRNA prediction databases into our microRNA Data Integration Portal (mirDIP). Modeling the microRNA:transcript interactome – referred to as the micronome – to build microRNA interaction networks of signalling pathways, we find genes within signalling pathways to be co-targeted by common microRNAs suggesting an unexpected level of transcriptional control. We identify two distinct classes of microRNAs; universe microRNAs, which are involved in many signalling pathway

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Uchida, Thomas Kenji. "Real-time Dynamic Simulation of Constrained Multibody Systems using Symbolic Computation." Thesis, 2011. http://hdl.handle.net/10012/5844.

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The main objective of this research is the development of a framework for the automatic generation of systems of kinematic and dynamic equations that are suitable for real-time applications. In particular, the efficient simulation of constrained multibody systems is addressed. When modelled with ideal joints, many mechanical systems of practical interest contain closed kinematic chains, or kinematic loops, and are most conveniently modelled using a set of generalized coordinates of cardinality exceeding the degrees-of-freedom of the system. Dependent generalized coordinates add nonlinear al

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Bernardo, Gonçalo Nuno Botelho Amaral Rolão. "CoDi: Leveraging Compatibility and Diversity in Computational Mashup Creation from Large Loop Collections." Master's thesis, 2021. https://hdl.handle.net/10216/135478.

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Bernardo, Gonçalo Nuno Botelho Amaral Rolão. "CoDi: Leveraging Compatibility and Diversity in Computational Mashup Creation from Large Loop Collections." Dissertação, 2021. https://hdl.handle.net/10216/135478.

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Lopez, Mejia Omar Dario. "Computational study of a NACA4415 airfoil using synthetic jet control." 2009. http://hdl.handle.net/2152/10683.

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Synthetic jet actuators for flow control applications have been an active topic of experimental research since the 90’s. Numerical simulations have become an important complement of that experimental work, providing detailed information of the dynamics of the controlled flow. This study is part of the AVOCET (Adaptive VOrticity Control Enabled flighT) project and is intended to provide computational support for the design and evaluation of closed-loop flow control with synthetic jet actuators for small scale Unmanned Aerial Vehicles (UAVs). The main objective is to analyze active flow control

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Pananilath, Irshad Muhammed. "An Optimizing Code Generator for a Class of Lattice-Boltzmann Computations." Thesis, 2014. http://etd.iisc.ac.in/handle/2005/3259.

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Lattice-Boltzmann method(LBM), a promising new particle-based simulation technique for complex and multiscale fluid flows, has seen tremendous adoption in recent years in computational fluid dynamics. Even with a state-of-the-art LBM solver such as Palabos, a user still has to manually write his program using the library-supplied primitives. We propose an automated code generator for a class of LBM computations with the objective to achieve high performance on modern architectures. Tiling is a very important loop transformation used to improve the performance of stencil computations by exploit

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Pananilath, Irshad Muhammed. "An Optimizing Code Generator for a Class of Lattice-Boltzmann Computations." Thesis, 2014. http://hdl.handle.net/2005/3259.

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Lattice-Boltzmann method(LBM), a promising new particle-based simulation technique for complex and multiscale fluid flows, has seen tremendous adoption in recent years in computational fluid dynamics. Even with a state-of-the-art LBM solver such as Palabos, a user still has to manually write his program using the library-supplied primitives. We propose an automated code generator for a class of LBM computations with the objective to achieve high performance on modern architectures. Tiling is a very important loop transformation used to improve the performance of stencil computations by exploit

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Adenariwo, Adepoju. "Conceptual design of a thermal hydraulic loop for multiple test geometries at supercritical conditions named supercritical phenomena experimental test apparatus (SPETA)." Thesis, 2012. http://hdl.handle.net/10155/229.

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The efficiency of nuclear reactors can be improved by increasing the operating pressure of current nuclear reactors. Current CANDU-type nuclear reactors use heavy water as coolant at an outlet pressure of up to 11.5 MPa. Conceptual SuperCritical Water Reactors (SCWRs) will operate at a higher coolant outlet pressure of 25 MPa. Supercritical water technology has been used in advanced coal plants and its application proves promising to be employed in nuclear reactors. To better understand how supercritical water technology can be applied in nuclear power plants, supercritical water loops are use

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Kulvicius, Tomas. "Modelling closed-loop receptive fields: On the formation and utility of receptive fields in closed-loop behavioural systems." Doctoral thesis, 2010. http://hdl.handle.net/11858/00-1735-0000-0006-B68A-F.

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Kent, Alexander Rafael. "Characterization of Evoked Potentials During Deep Brain Stimulation in the Thalamus." Diss., 2013. http://hdl.handle.net/10161/8195.

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<p>Deep brain stimulation (DBS) is an established surgical therapy for movement disorders. The mechanisms of action of DBS remain unclear, and selection of stimulation parameters is a clinical challenge and can result in sub-optimal outcomes. Closed-loop DBS systems would use a feedback control signal for automatic adjustment of DBS parameters and improved therapeutic effectiveness. We hypothesized that evoked compound action potentials (ECAPs), generated by activated neurons in the vicinity of the stimulating electrode, would reveal the type and spatial extent of neural activation, as well as

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"The Effect of Leading-Edge Geometry on the Induced Drag of a Finite Wing." Master's thesis, 2019. http://hdl.handle.net/2286/R.I.53549.

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abstract: This study identifies the influence that leading-edge shape has on the aerodynamic characteristics of a wing using surface far-field and near-field analysis. It examines if a wake survey is the appropriate means for measuring profile drag and induced drag. The paper unveils the differences between sharp leading-edge and blunt leading-edge wings with the tools of pressure loop, chordwise pressure distribution, span load plots and with wake integral computations. The analysis was performed using Computational Fluid Dynamics (CFD), vortex lattice potential flow code (VORLAX), and a few

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Αυγερινός, Νικόλαος. "Υπολογιστική και πειραματική διερεύνηση ροϊκής συμπεριφοράς τριχοειδών αντλιών και εφαρμογή σε συστήματα θέρμανσης με ηλιακή ενέργεια". Thesis, 2013. http://hdl.handle.net/10889/7529.

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Η παρούσα έρευνα πραγματοποιήθηκε στο Εργαστήριο Ρευστομηχανικής και Εφαρμογών Αυτής του Τμήματος Μηχανολόγων και Αεροναυπηγών Μηχανικών του Πανεπιστημίου Πατρών και χρηματοδοτήθηκε από το πρόγραμμα «Ηράκλειτος ΙΙ» στα πλαίσια του Επιχειρησιακού Προγράμματος Εκπαίδευση και Δια Βίου Μάθησης, Επένδυση στη κοινωνία της γνώσης. Ο έλεγχος του θερμικού φορτίου στη λειτουργία διαφόρων μηχανολογικών ή ηλεκτρολογικών συστημάτων από συστήματα ψύξης, γίνεται όλο και πιο αναγκαίος στη σημερινή εποχή. Τα συστήματα ψύξης κατηγοριοποιούνται σε ενεργά, που μεταφέρουν ενέργεια υπό μορφή αισθητής θερμότητας μέ

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Toutounji, Hazem. "Homeostatic Plasticity in Input-Driven Dynamical Systems." Doctoral thesis, 2015. https://repositorium.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-2015022613091.

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The degree by which a species can adapt to the demands of its changing environment defines how well it can exploit the resources of new ecological niches. Since the nervous system is the seat of an organism's behavior, studying adaptation starts from there. The nervous system adapts through neuronal plasticity, which may be considered as the brain's reaction to environmental perturbations. In a natural setting, these perturbations are always changing. As such, a full understanding of how the brain functions requires studying neuronal plasticity under temporally varying stimulation conditions,

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