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Dissertations / Theses on the topic 'Iterative model'

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Published: 3 June 2025

Last updated: 31 July 2025

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1

Segal, Aleksandr V. "Iterative Local Model Selection for tracking and mapping." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:8690e0e0-33c5-403e-afdf-e5538e5d304f.

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The past decade has seen great progress in research on large scale mapping and perception in static environments. Real world perception requires handling uncertain situations with multiple possible interpretations: e.g. changing appearances, dynamic objects, and varying motion models. These aspects of perception have been largely avoided through the use of heuristics and preprocessing. This thesis is motivated by the challenge of including discrete reasoning directly into the estimation process. We approach the problem by using Conditional Linear Gaussian Networks (CLGNs) as a generalization o

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Kou, Xiaochen. "An iterative approach for model selection in a class of semiparametric models." Thesis, University of York, 2018. http://etheses.whiterose.ac.uk/21551/.

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Clayton, Thomas F. "Enabling rapid iterative model design within the laboratory environment." Thesis, University of Edinburgh, 2009. http://hdl.handle.net/1842/4023.

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This thesis presents a proof of concept study for the better integration of the electrophysiological and modelling aspects of neuroscience. Members of these two sub-disciplines collaborate regularly, but due to differing resource requirements, and largely incompatible spheres of knowledge, cooperation is often impeded by miscommunication and delays. To reduce the model design time, and provide a platform for more efficient experimental analysis, a rapid iterative model design method is proposed. The main achievement of this work is the development of a rapid model evaluation method based on pa

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Anderson, Taurug. "Iterative Learning Control model for a Resistive Wall Mode Active Controller." Thesis, KTH, Fusionsplasmafysik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-125897.

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The EXTRAP T2R is a Reversed Field Pinch (RFP) device purposed to conduct magnetic confinement fusion research. Magnetic confinement works on the principle of isolating the hot plasma from the cool walls by locking in the plasma onto the magnetic field lines. Due to the generally unstable nature of plasma, the plasma column will shift off its centered position and encroach upon the cooling walls. To counteract this, a series of magnetic sensor coil are placed around the torus that serve as the input for another set of coils that will generate a magnetic field to force the plasma column back in

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Harte, Thomas James. "Discrete-time model-based Iterative Learning Control : stability, monotonicity and robustness." Thesis, University of Sheffield, 2007. http://etheses.whiterose.ac.uk/3624/.

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In this thesis a new robustness analysis for model-based Iterative Learning Control (ILC) is presented. ILC is a method of control for systems that are required to track a reference signal in a repetitive manner. The repetitive nature of such a system allows for the use of past information such that the control system iteratively learns control signals that give high levels of tracking. ILC algorithms that learn in a monotonic fashion are desirable as it implies that tracking performance is improved at each iteration. A number of model-based ILC algorithms are known to result in a monotonicall

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Vardhanabhuti, Varut. "Use of model-based iterative reconstruction (MBIR) techniques in computed tomography (CT)." Thesis, Exeter and Plymouth Peninsula Medical School, 2018. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.757607.

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Over the past decades, the use of computed tomography (CT) has risen exponentially due to expanding need in medical diagnosis and treatment planning. The use of CT is not entirely without risk and involves theoretical risk from radiation. This has led to several advancement in dose reduction techniques. Most promising is the use of so called “iterative reconstruction” which is a post image acquisition step combining a software/hardware configuration that allows the images acquired to be processed more efficiently, eliminating noise which increases with low dose techniques. This thesis examines

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Nadir, Zeeshan. "A Model Based Iterative Reconstruction Approach to Tunable Diode Laser Absorption Tomography." Thesis, Purdue University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10842834.

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<p> Tunable diode laser absorption tomography (TDLAT) has emerged as a popular nonintrusive technique for simultaneous sensing of gas concentration and temperature. The gas concentration and temperature is computed by making light absorbance measurements using tunable diode lasers. Major challenges of TDLAT imaging include a highly nonlinear measurement process and availability of only a few light absorbance measurements. Therefore, TDLAT imaging of concentration and temperature is an ill-posed, nonlinear inverse problem. Conventional approaches to TDLAT primarily consist of making restrictive

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Benner, Peter, Enrique Quintana-Ortí, and Gregorio Quintana-Ortí. "Solving Linear Matrix Equations via Rational Iterative Schemes." Universitätsbibliothek Chemnitz, 2006. http://nbn-resolving.de/urn:nbn:de:swb:ch1-200601460.

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We investigate the numerical solution of stable Sylvester equations via iterative schemes proposed for computing the sign function of a matrix. In particular, we discuss how the rational iterations for the matrix sign function can efficiently be adapted to the special structure implied by the Sylvester equation. For Sylvester equations with factored constant term as those arising in model reduction or image restoration, we derive an algorithm that computes the solution in factored form directly. We also suggest convergence criteria for the resulting iterations and compare the accuracy and perf

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9

Unlu, Mehmet Zubeyir. "Iterative deformable finite element model for nonrigid 3D PET/MRI breast image registration." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2006. http://proquest.umi.com/login?COPT=REJTPTU0NWQmSU5UPTAmVkVSPTI=&clientId=3739.

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10

Brown, Kathleen Annette. "An Iterative Needs Assessment/Evaluation Model for a Japanese University English-language Program." Diss., Temple University Libraries, 2009. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/66807.

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CITE/Language Arts<br>Ed.D.<br>The focus of this study is the development and implementation of the Iterative Needs Assessment/Evaluation Model for use as part of an English curriculum reform project at a four-year university in Japan. Three questions were addressed in this study: (a) what model components were necessary for use in a Japanese university setting; (b) what survey instruments would work with such a model; and (c) what needs would the stakeholders in the project report? The site for the study was a mid-sized private, four-year university in Japan. Set as an instrumental case stud

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Shirke, Abhijit R. "Transformation from Linear Development Model to Iterative Development within a Waterfall Environment : A Case Study." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1345447033.

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Sinani, Klajdi. "Iterative Rational Krylov Algorithm for Unstable Dynamical Systems and Genaralized Coprime Factorizations." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/64425.

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Generally, large-scale dynamical systems pose tremendous computational difficulties when applied in numerical simulations. In order to overcome these challenges we use several model reduction techniques. For stable linear models these techniques work very well and provide good approximations for the full model. However, large-scale unstable systems arise in many applications. Many of the known model reduction methods are not very robust, or in some cases, may not even work if we are dealing with unstable systems. When approximating an unstable sytem by a reduced order model, accuracy is not th

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Deplante, Christian. "Modeles stratifies uni et bi-dimensionnels a partir d'inversion iterative de profils sismiques verticaux a offset." Paris 6, 1987. http://www.theses.fr/1987PA066337.

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Cette these presente plusieurs sujets ayant trait au trace de rais, utilise soit directement pour obtenir des positions d'interfaces et des lenteurs de couches, soit indirectement pour obtenir des temps de parcours et des termes d'amplitude pour la migration. Le premier sujet traite deux ameliorations d'une methode existante, qui utilise la methode des moindres carres pour l'inversion d'un modele a deux dimensions, a partir des temps de parcours des ondes montantes et descendantes. Le modele est constitue de couches a vitesse constante, separees par des interfaces definis par des courbes. Le s

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Ganser, Stefan [Verfasser], and Christian [Akademischer Betreuer] Lengauer. "Iterative Schedule Optimization for Parallelization in the Polyhedron Model / Stefan Ganser ; Betreuer: Christian Lengauer." Passau : Universität Passau, 2020. http://d-nb.info/1206730978/34.

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Maji, Abhishek. "Learning model predictive control with application to quadcopter trajectory tracking." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-278211.

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In thiswork, we develop a learning model predictive controller (LMPC) for energy-optimaltracking of periodic trajectories for a quadcopter. The main advantage of this controller isthat it is “reference-free”. Moreover, the controller is able to improve its performance overiterations by incorporating learning from the previous iterations. The proposed learningmodel predictive controller aims to learn the “best” energy-optimal trajectory over timeby learning a terminal constraint set and a terminal cost from the history data of previousiterations. We have shown howto recursively construct termin

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Gudjonsson, Knutur. "Iterative Business Model Innovation : Exploring a Holistic Framework in Order to Create and Capture New Value." Thesis, Linköpings universitet, Företagsekonomi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-97540.

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Background: There is an increasing amount of arguments made that new business models are the solution when companies and industries face radical changes in the environment. To be able to prosper in the long run, organizations must reinvent themselves over and over again. Many authors (e.g. Abernathy & Utterback, 1978; Christensen, 1997; Kim & Mauborgne, 2005; Ries, 2011) claim that big, radical, reconfigurations are needed in order to prosper in the long-term. Theories, concepts and framework have been developed to answer how this reconfiguration should happen within organizations. How

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Staub, David. "Time dependent cone-beam CT reconstruction via a motion model optimized with forward iterative projection matching." VCU Scholars Compass, 2013. http://scholarscompass.vcu.edu/etd/3092.

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The purpose of this work is to present the development and validation of a novel method for reconstructing time-dependent, or 4D, cone-beam CT (4DCBCT) images. 4DCBCT can have a variety of applications in the radiotherapy of moving targets, such as lung tumors, including treatment planning, dose verification, and real time treatment adaptation. However, in its current incarnation it suffers from poor reconstruction quality and limited temporal resolution that may restrict its efficacy. Our algorithm remedies these issues by deforming a previously acquired high quality reference fan-beam CT

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Kirkland, Tabitha. "Emotion Categories Reflect Affective Trajectories Through Time." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1276744595.

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Chuang, Hsueh-hua. "An iterative model for the steady state current distribution in oxide-confined vertical-cavity surface-emitting lasers (VCSELs)." Ann Arbor, Mich. : ProQuest, 2007. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3288753.

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Thesis (Ph.D. in Applied Science)--S.M.U., 2007.<br>Title from PDF title page (viewed Nov. 19, 2009). Source: Dissertation Abstracts International, Volume: 68-11, Section: B, page: 7533. Adviser: Gary A. Evans. Includes bibliographical references.

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Ahmed, Nisar. "Implicit restart schemes for Krylov subspace model reduction methods." Thesis, Imperial College London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340535.

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Benner, Peter, Mohammad-Sahadet Hossain, and Tatjana Stykel. "Low-rank iterative methods of periodic projected Lyapunov equations and their application in model reduction of periodic descriptor systems." Universitätsbibliothek Chemnitz, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-97630.

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We discuss the numerical solution of large-scale sparse projected discrete-time periodic Lyapunov equations in lifted form which arise in model reduction of periodic descriptor systems. We extend the alternating direction implicit method and the Smith method to such equations. Low-rank versions of these methods are also presented, which can be used to compute low-rank approximations to the solutions of projected periodic Lyapunov equations in lifted form with low-rank right-hand side. Moreover, we consider an application of the Lyapunov solvers to balanced truncation model reduction of periodi

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Benner, Peter, Mohammad-Sahadet Hossain, and Tatjana Stykel. "Low-rank iterative methods of periodic projected Lyapunov equations and their application in model reduction of periodic descriptor systems." Technische Universität Chemnitz, 2011. https://monarch.qucosa.de/id/qucosa%3A19794.

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We discuss the numerical solution of large-scale sparse projected discrete-time periodic Lyapunov equations in lifted form which arise in model reduction of periodic descriptor systems. We extend the alternating direction implicit method and the Smith method to such equations. Low-rank versions of these methods are also presented, which can be used to compute low-rank approximations to the solutions of projected periodic Lyapunov equations in lifted form with low-rank right-hand side. Moreover, we consider an application of the Lyapunov solvers to balanced truncation model reduction of periodi

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Sacchi, Giulia. "A new convergence model for the GMRES method." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/13501/.

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Tra i metodi sugli spazi di Krylov, il metodo gmres (Generalized Minimal RESidual) è particolarmente adatto per risolvere sistemi non simmetrici di grandi dimensioni. Esso tuttavia diventa inutilizzabile quando presenta una convergenza troppo lenta. Analizzarne la convergenza è dunque molto importante per rendere il suo utilizzo più agevole, ma anche al fine di comprendere il comportamento di altri algoritmi non necessariamente ottimali. In questa tesi viene analizzato il particolare caso in cui la matrice del sistema, A, è diagonalizzabile e quasi unitaria, e tuttavia presenta mal condiziona

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Widjaja, Budi R. "Analysis and Design of Steel Deck-Concrete Composite Slabs." Diss., Virginia Tech, 1997. http://hdl.handle.net/10919/30759.

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As cold-formed steel decks are used in virtually every steel-framed structure for composite slab systems, efforts to develop more efficient composite floor systems continues. Efficient composite floor systems can be obtained by optimally utilizing the materials, which includes the possibility of developing long span composite slab systems. For this purpose, new deck profiles that can have a longer span and better interaction with the concrete slab are investigated. Two new mechanical based methods for predicting composite slab strength and behavior are introduced. They are referred to as t

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Lopez, Recio David. "Designing a new model for the elderly in an assisted living facility : Iterative programming of the NAO robot within a multidisciplinary design environment." Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-170003.

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It is estimated that, by 2050, the number of people aged 65 and above will have grown in the European Union by 70%, and people over 80 will have grown by 170%. Therefore, Health Care faces three major challenges: the population of Europe is ageing, Health Care is increasingly effective but also becoming more expensive, and patients, having become true consumers, are also more demanding. The project “PhySeEar” was born with the aim of improving the quality of physiotherapy sessions as well as turning them into a more engaging and lively therapy. This project was performed in the “Nuestra Se˜nor

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Penzl, T. "A cyclic low rank Smith method for large, sparse Lyapunov equations with applications in model reduction and optimal control." Universitätsbibliothek Chemnitz, 1998. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-199801035.

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We present a new method for the computation of low rank approximations to the solution of large, sparse, stable Lyapunov equations. It is based on a generalization of the classical Smith method and profits by the usual low rank property of the right hand side matrix. The requirements of the method are moderate with respect to both computational cost and memory. Hence, it provides a possibility to tackle large scale control problems. Besides the efficient solution of the matrix equation itself, a thorough integration of the method into several control algorithms can improve their performance to

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Butscheidt, Sebastian Karl [Verfasser], and Marc [Akademischer Betreuer] Regier. "Einfluss des neuen iterativen Rekonstruktionsverfahrens „Iterative Model Reconstruction“ (IMR) auf die Abgrenzbarkeit normaler und pathologischer Lungenstrukturen in der Niedrigdosis- Thorax-CT im Vergleich zu iDose4TM und der herkömmlichen gefilterten Rückprojektion (FBP) / Sebastian Karl Butscheidt ; Betreuer: Marc Regier." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2016. http://d-nb.info/1121207154/34.

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Butscheidt, Sebastian Karl Verfasser], and Marc-Ulrich [Akademischer Betreuer] [Regier. "Einfluss des neuen iterativen Rekonstruktionsverfahrens „Iterative Model Reconstruction“ (IMR) auf die Abgrenzbarkeit normaler und pathologischer Lungenstrukturen in der Niedrigdosis- Thorax-CT im Vergleich zu iDose4TM und der herkömmlichen gefilterten Rückprojektion (FBP) / Sebastian Karl Butscheidt ; Betreuer: Marc Regier." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2016. http://nbn-resolving.de/urn:nbn:de:gbv:18-82296.

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Danielsson, Simon. "Monte Carlo based Threat Assessment: An in depth Analysis." Thesis, Linköping University, Department of Electrical Engineering, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-9480.

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<p>This thesis presents improvements and extensions of a previously presented threat assessment algorithm. The algorithm uses Monte Carlo simulation to find threats in a road scene. It is shown that, by using a wider sample distribution and only apply the most likely samples from the Monte Carlo simulation, for the threat assessment, improved results are obtained. By using this method more realistic paths will be chosen by the simulated vehicles and more complex traffic situations will be adequately handled.</p><p>An improvement of the dynamic model is also suggested, which improves the realis

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KC, Prabhat. "3D Reconstruction of the Magnetic Vector Potential of Magnetic Nanoparticles Using Model Based Vector Field Electron Tomography." Research Showcase @ CMU, 2017. http://repository.cmu.edu/dissertations/935.

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Lorentz TEM observations of magnetic nanoparticles contain information on the magnetic and electrostatic potentials of the sample. These potentials can be extracted from the electron wave phase shift by separating electrostatic and magnetic phase shifts, followed by 3D tomographic reconstructions. In past, Vector Field Electron Tomography (VFET) was utilized to perform the reconstruction. However, VFET is based on a conventional tomography method called filtered back-projection (FBP). Consequently, the VFET approach tends to produce inconsistencies that are prominent along the edges of the sam

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Eberhagen, Niclas. "Understanding the Designing of Knowledge Work Support Tools as a Situated Practice." Doctoral thesis, Linnéuniversitetet, Institutionen för datavetenskap, fysik och matematik, DFM, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-15083.

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The aim of the thesis is twofold. First, a need is exposed for adopting a situated design perspective in designing computer-based tools that support knowledge work. Second, an examination is made of what this perspective may reveal concerning the nature of processes and relations within the design situation. This is done to understand better what it means for users and developers, as well as other stakeholders, to approach and capture the tacit knowing within the work context. The argument for adopting a situated design perspective is based on experience drawn from development projects, as wel

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Grosso, Pérez Juan Manuel. "On model predictive control for economic and robust operation of generalised flow-based networks." Doctoral thesis, Universitat Politècnica de Catalunya, 2015. http://hdl.handle.net/10803/288218.

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This thesis is devoted to design Model Predictive Control (MPC) strategies aiming to enhance the management of constrained generalised flow-based networks, with special attention to the economic optimisation and robust performance of such systems. Several control schemes are developed in this thesis to exploit the available economic information of the system operation and the disturbance information obtained from measurements and forecasting models. Dynamic network flows theory is used to develop control-oriented models that serve to design MPC controllers specialised for flow networks with

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Hehn, Lorenz [Verfasser], Franz [Akademischer Betreuer] Pfeiffer, Tobias [Gutachter] Lasser, and Franz [Gutachter] Pfeiffer. "Model-Based Iterative Reconstruction for X-ray Computed Tomography Using Attenuation and Propagation-Based Phase Contrast / Lorenz Hehn ; Gutachter: Tobias Lasser, Franz Pfeiffer ; Betreuer: Franz Pfeiffer." München : Universitätsbibliothek der TU München, 2020. http://d-nb.info/121529347X/34.

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Gale, Maggie. "Exploring the determinants of dual goal facilitation in Wason's 2-4-6 task." Thesis, University of Derby, 2008. http://hdl.handle.net/10545/317456.

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The standard paradigm for exploring hypothesis testing behaviour is Wason's (1960) rule discovery task, which exists in two variants: the standard single goal (SG) task, and the logically identical dual goal (DG) fonn. Despite the close similarity of the two fonns of the task, the reported success rates in the two variants vary considerably, with approximately 20% of participants successfully solving the SG variant compared to over 60% correctly announcing the rule in the DG fonn. It was this disparity between the patterns of perfonnance across the two versions of the task which fonned the imp

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Sallet, Marieli, and Marieli Sallet. "Desenvolvimento de um modelo lagrangeano para dispersão de poluentes em condições de vento fraco." Universidade Federal de Pelotas, 2007. http://repositorio.ufpel.edu.br/handle/ri/2183.

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Made available in DSpace on 2014-08-20T14:25:46Z (GMT). No. of bitstreams: 1 dissertacao_marieli_sallet.pdf: 231023 bytes, checksum: f445526b62fbfcde40fb1bc5ca90923a (MD5) Previous issue date: 2007-02-23<br>Currently, the search for analytical solutions for the dispersion problems is one of the main research subjects in the pollutant dispersion modeling. These solutions become important due to the intention to obtain dispersion models that generate reliable results in a small computational time, which are of great interest for regulatory air quality applications. Lagrangian particle mo

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Björklund, Henrik. "Combinatorial Optimization for Infinite Games on Graphs." Doctoral thesis, Uppsala University, Department of Information Technology, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4751.

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<p>Games on graphs have become an indispensable tool in modern computer science. They provide powerful and expressive models for numerous phenomena and are extensively used in computer- aided verification, automata theory, logic, complexity theory, computational biology, etc.</p><p>The infinite games on finite graphs we study in this thesis have their primary applications in verification, but are also of fundamental importance from the complexity-theoretic point of view. They include parity, mean payoff, and simple stochastic games.</p><p>We focus on solving graph games by using iterative stra

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Chauhan, Arjun. "Modeling and Predicting Taxi Times at Airports." Scholar Commons, 2010. http://scholarcommons.usf.edu/etd/3472.

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This research aims at providing methods in analyzing and estimating the taxi times of aircraft at airports, which are expected to be an important element for reducing taxiing delay and consequent excess fuel consumption and environmental costs. The proposed model involves a set of regression equations to model the taxi-out and taxi-in times at airports. The estimated results can be used to calculate the nominal taxi times, which are essential measures for evaluating the taxiing delays at airports. Given the outcomes of the regression model, an iterative algorithm is developed to predict taxi t

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UNO, Yoji, Kouichi TAJI, Masashi OTANI, 洋二宇野, 宏一田地 та 将司大谷. "逆ダイナミックスモデルを用いた反復制御による運動適応". 電子情報通信学会, 2012. https://search.ieice.org/.

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Hu, Ke. "Speech Segregation in Background Noise and Competing Speech." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1339018952.

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Martin, Victorin. "Modélisation probabiliste et inférence par l'algorithme Belief Propagation." Phd thesis, Ecole Nationale Supérieure des Mines de Paris, 2013. http://tel.archives-ouvertes.fr/tel-00867693.

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On s'intéresse à la construction et l'estimation - à partir d'observations incomplètes - de modèles de variables aléatoires à valeurs réelles sur un graphe. Ces modèles doivent être adaptés à un problème de régression non standard où l'identité des variables observées (et donc celle des variables à prédire) varie d'une instance à l'autre. La nature du problème et des données disponibles nous conduit à modéliser le réseau sous la forme d'un champ markovien aléatoire, choix justifié par le principe de maximisation d'entropie de Jaynes. L'outil de prédiction choisi dans ces travaux est l'algorith

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Paulke, Jan. "Optimal Combination of Reduction Methods in Structural Mechanics and Selection of a Suitable Intermediate Dimension." Master's thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-150318.

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A two-step model order reduction method is investigated in order to overcome problems of certain one-step methods. Not only optimal combinations of one-step reductions are considered but also the selection of a suitable intermediate dimension (ID) is described. Several automated selection methods are presented and their application tested on a gear box model. The implementation is realized using a Matlab-based Software MORPACK. Several recommendations are given towards the selection of a suitable ID, and problems in Model Order Reduction (MOR) combinations are pointed out. A pseudo two-step is

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Bonis, Ioannis. "Optimisation and control methodologies for large-scale and multi-scale systems." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/optimisation-and-control-methodologies-for-largescale-and-multiscale-systems(6c4a4f13-ebae-4d9d-95b7-cca754968d47).html.

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Distributed parameter systems (DPS) comprise an important class of engineering systems ranging from "traditional" such as tubular reactors, to cutting edge processes such as nano-scale coatings. DPS have been studied extensively and significant advances have been noted, enabling their accurate simulation. To this end a variety of tools have been developed. However, extending these advances for systems design is not a trivial task . Rigorous design and operation policies entail systematic procedures for optimisation and control. These tasks are "upper-level" and utilize existing models and simu

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Aji, Srinivas M. McEliece Robert J. "Graphical models and iterative decoding /." Diss., Pasadena, Calif. : California Institute of Technology, 2000. http://resolver.caltech.edu/CaltechETD:etd-04112003-162805.

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Oliveira, Matheus Senna de. "Resonant gain scheduling controller for spiral scanning patterns in atomic force microscopy." Pontifícia Universidade Católica do Rio Grande do Sul, 2018. http://hdl.handle.net/10923/11738.

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Made available in DSpace on 2018-06-16T12:04:23Z (GMT). No. of bitstreams: 1 000488854-Texto+Completo-0.pdf: 2367932 bytes, checksum: 927039b4746ebdc5d7da25318435b24a (MD5) Previous issue date: 2018<br>This document presents a dissertation work regarding the study of control strategies for the efficient tracking of spiral patterns. Such patterns arise in many areas, as for example the Atomic Force Microscopy, where fast and smooth reference signals are required. In order to successfully track the above mentioned references, which are composed of amplitude and frequency-varying sinusoidal sig

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Han, Dong. "Advances in dual-energy computed tomography imaging of radiological properties." VCU Scholars Compass, 2018. https://scholarscompass.vcu.edu/etd/5447.

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Dual-energy computed tomography (DECT) has shown great potential in the reduction of uncertainties of proton ranges and low energy photon cross section estimation used in radiation therapy planning. The work presented herein investigated three contributions for advancing DECT applications. 1) A linear and separable two-parameter DECT, the basis vector model (BVM) was used to estimate proton stopping power. Compared to other nonlinear two-parameter models in the literature, the BVM model shows a comparable accuracy achieved for typical human tissues. This model outperforms other nonlinear model

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Stachlewska, Iwona Sylwia. "Investigation of tropospheric arctic aerosol and mixed-phase clouds using airborne lidar technique." Phd thesis, Universität Potsdam, 2005. http://opus.kobv.de/ubp/volltexte/2006/698/.

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An Airborne Mobile Aerosol Lidar (AMALi) was constructed and built at Alfred-Wegener-Institute for Polar and Marine Research (AWI) in Potsdam, Germany for the lower tropospheric aerosol and cloud research under tough arctic conditions. The system was successfully used during two AWI airborne field campaigns, ASTAR 2004 and SVALEX 2005, performed in vicinity of Spitsbergen in the Arctic. The novel evaluation schemes, the Two-Stream Inversion and the Iterative Airborne Inversion, were applied to the obtained lidar data. Thereby, calculation of the particle extinction and backscatter coefficient

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Liu, Taoming. "A MAGNETICALLY-ACTUATED ROBOTIC CATHETER FOR ATRIAL FIBRILLATION ABLATION UNDER REAL-TIME MAGNETIC RESONANCE IMAGING GUIDANCE." Case Western Reserve University School of Graduate Studies / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case1484654444253783.

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Papp, Timothy M. "CrashApp™ –Concurrent Multiple Stakeholder Evaluation of a DSR Artefact." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/7074.

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The successful design, implementation, deployment, and use of mobile software applications is rare. While many mobile apps are developed, few succeed. This design science research project builds and evaluates CrashApp™, a mobile application that connects lawyers and clients before, during, and after car accidents. The effective, widespread use of this app depends on satisfying the needs of three groups of stakeholders – the end-users (clients), the owners (lawyers), and the software developers. The research objective is to investigate the key differences among the three sta

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ABUABIAH, MOHAMMAD IBRAHIM FAREED. "A set-membership approach to direct data-driven control design." Doctoral thesis, Politecnico di Torino, 2019. http://hdl.handle.net/11583/2737672.

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Roberti, Giovanni. "Steady-state Modelling of a Vapor Compression Refrigeration Cycle." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19438/.

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In this work a steady-state model of a simple vapor compression refrigeration cycle is presented. All the fundamental components of this system are modeled separately in order to consider them as black boxes that take inputs and convert them into output variables. The heat exchangers are treated as a set of multiple zones, identified by the refrigerant's state, connected in series, in which the heat transfer coefficient (HTC) is constant. A non-linear system of equations is obtained applying the energy balances and the ε-NTU method for each zone in the heat exchangers. A study on the HTC corre

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