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Dissertations / Theses on the topic 'MTDH'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 February 2022

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1

Poalas, Konstantinos. "Ubiquitinylation and deubiquitinylation in the regulation of the transcription factor NF-kB activation." Phd thesis, Université Paris Sud - Paris XI, 2013. http://tel.archives-ouvertes.fr/tel-00926894.

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Large signalosome assembly is a prerequisite for NF-κB signaling upon engagement of various immunoreceptors. Adaptor proteins containing protein-protein interaction domains oligomerise in response to such stimuli in order to propagate signaling. Each immunoreceptor uses distinct adaptors, as well as common ones, to achieve that. The main characteristic shared by these proteins is their ability to undergo poly-ubiquitinylation in a non-degradative manner, leading to optimal NF-κB activation. In this work, we aimed to identify novel deubiquitinylating enzymes that control ubiquitinylation status

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2

Akkari, Samy. "Contrôle d'un système multi-terminal HVDC (MTDC) et étude des interactions entre les réseaux AC et le réseau MTDC." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLC069/document.

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La multiplication des projets HVDC de par le monde démontre l'engouement toujours croissant pour cette technologie de transport de l'électricité. La grande majorité de ces transmissions HVDC correspondent à des liaisons point-à-point et se basent sur des convertisseurs AC/DC de type LCC ou VSC à 2 ou 3 niveaux. Les travaux de cette thèse se focalisent sur l'étude, le contrôle et la commande de systèmes HVDC de type multi-terminal (MTDC), avec des convertisseurs de type VSC classique ou modulaire multi-niveaux. La première étape consiste à obtenir les modèles moyens du VSC classique et du MMC.

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Sheridan, Caitríona Evelyn. "Assessment of HVDC technologies for an offshore MTDC grid." Thesis, Imperial College London, 2015. http://hdl.handle.net/10044/1/38552.

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This thesis examines various HVDC converter technologies that could be used in offshore Multi-Terminal DC (MTDC) grids. MTDC grids rely on AC/DC converters to interface with AC systems and also for control services. Two AC/DC topologies were compared, the half-bridge Modular Multi-level Converter (MMC) and the Alternate Arm Converter (AAC). As new DC system voltages emerge the DC/DC converter could be an enabling technology for interconnection and future MTDC networks. As yet there is no consensus on DC/DC converter topology and a critical comparison of several potential designs was conducted.

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4

Urbonaitė, Ginta. "MTD praktinio pritaikymo skatinimo informacinis modelis." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2007~D_20101125_183229-90903.

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Aptariamas mokslo ir pramonės bendradarbiavimo portalo modelis. Remiamasi trišalio bendradarbiavimo koncepcija, kuomet procese dalyvauja universitetas, pramonės atstovai bei studentai. Išnagrinėti sistemoje vykstantys procesai bei jų realizavimo būdai. Apžvelgiamos veikiančios panašios bendradarbiavimo sistemos Lietuvoje ir užsienyje, aptariamos pagrindinės jų kūrimo problemos. Identifikuojami būsimosios sistemos vartotojai, jų rolės bei informaciniai srautai. Pateikiamas eksperimentinis tyrimas - sistemos prototipas. Taip pat atlikta vertinamoji analizė.<br>The article presents the site model

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Nazari, Mohammad. "Control of DC voltage in Multi-Terminal HVDC Transmission (MTDC) Systems." Licentiate thesis, KTH, Elektriska energisystem, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-147551.

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With recent advances in power electronic technology, High-Voltage Direct Current (HVDC) transmission system has become an alternative for transmitting power especially over long distances. Multi-Terminal HVDC (MTDC) systems are proposed as HVDC systems with more than two terminals. These systems can be geographically wide. While in AC grids, frequency is a global variable, in MTDC systems, DC voltage can be considered as its dual. However, unlike frequency, DC voltage can not be equal across the MTDC system. Control of DC voltage in MTDC systems is one of the important challenges in MTDC syste

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Akhter, Faheem. "Secure optimal operation and control of integrated AC/MTDC meshed grids." Thesis, University of Edinburgh, 2015. http://hdl.handle.net/1842/19531.

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Offshore wind energy is seen as the most promising source of electricity generation for achieving the European renewable energy targets. A number of wind farms are planned and under installation to collect the huge potential of wind energy at farther distances in the North Sea. The number of HVDC links in the North Sea is expected to increase with the development of offshore installations in Round 3 of the UK offshore windfarm programme. The increasing number of HVDC links and high power transfer control requirements leads to the formation of Multi-Terminal HVDC (MTDC) grid systems, which have

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7

Junior, Rui Bertho. "Um novo algoritmo de proteção para redes HVDC multiterminais." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/18/18154/tde-26042018-105556/.

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Recentes avanços em relação aos dispositivos semicondutores utilizados no processo de conversão CA/CC levaram à aplicação de conversores fonte de tensão, do inglês Voltage Source Converter (VSC), na transmissão de energia elétrica em altas tensões e corrente contínua, do inglês High Voltage Direct Current (HVDC). Uma das vantagens da utilização de VSCs é simplificr o processo de criação de redes HVDC com múltiplos terminais, identificadas pela sigla em inglês Multi-terminal HVDC (MTDC). Entretanto, a severidade das faltas em linhas CC, aliada à fragilidade dos conversores, exige a utilização d

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Tågerud, Linnéa, and Lovisa Halen. "Jämförelse av pelotthöjder med avseende på det plantara trycket under MTH." Thesis, Hälsohögskolan, Högskolan i Jönköping, HHJ, Avd. för rehabilitering, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-45206.

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Syfte: Framfoten är en av de vanligaste platserna i foten för smärta. Under metatarsalfalangealhuvudena (MTH) är också en av de vanligaste platserna för fotsår. Pelotter är en intervention som ibland används vid framfotsproblematik för att minska trycket under MTH. Syftet med detta projekt är att undersöka om pelottens höjd påverkar trycket under MTH. Metod: Fem deltagare rekryterades till projektet. Varje deltagare genomgick 5 mätningar med varje intervention; individtillverkade inlägg utan pelott, samma inlägg med en 5 mm pelott och samma inlägg med en 12 mm pelott. Trycket under fötterna mä

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Tzelepis, Dimitrios. "Protection, fault location & control in high voltage multi terminal direct current (HV-MTDC) grids." Thesis, University of Strathclyde, 2017. http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=28877.

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With an increased penetration of renewable energy sources, balancing the supply and demand is likely to be one of the major challenges in future power systems. Consequently, there is a growing need for meshed interconnections between countries in order to effectively share the available power capacity and thereby increase operational exibility and security of supply. This has been raised as a major issue in Europe but also in Asia and United States of America. The concept of supergrid has been identifed as a possible solution towards a newback bone transmission system, permitting massive integ

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Gomes, Ashen. "Testing and analysis of an intelligent electronic device (IED) prototype for MTDC overhead line application." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-286780.

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A key problem faced with the implementation of a multi-terminal direct current (MTDC) grid is fault mitigation. One method extensively researched in mitigating a fault in MTDC is to use protection intelligent electronic devices (IEDs) and fast direct current circuit breakers (DCCBs). The IEDs are able to detect and identify faults with fault algorithms. In this study overhead line MTDC systems are investigated to identify the best algorithm for overhead line (OHL) MTDC fault mitigation and the resulting algorithm is tested on a protection IED. Three models: short line, long line and combined l

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MONETA, Márcio de Aguiar Vasconcelos. "O MTD e a mobilização pelo trabalho autogestionário no Brasil urbano contemporâneo." Universidade Federal de Pernambuco, 2010. https://repositorio.ufpe.br/handle/123456789/17475.

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Submitted by Isaac Francisco de Souza Dias (isaac.souzadias@ufpe.br) on 2016-07-19T18:45:43Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertação - Márcio de Aguiar Vasconcelos Moneta - versão digital.pdf: 2651572 bytes, checksum: d1dee13dd46234958d38c3e1afc75eb3 (MD5)<br>Made available in DSpace on 2016-07-19T18:45:43Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertação - Márcio de Aguiar Vasconcelos Moneta - versão digital.pdf: 2651572 bytes, checksum: d1dee13dd46234958d38c3e1a

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Boomershine, William P. "Structure and interactions of archaeal RNase P proteins Mth Rpp29 and Pfu Rpp21." Connect to this title online, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1117552357.

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Thesis (Ph. D.)--Ohio State University, 2005.<br>Title from first page of PDF file. Document formatted into pages; contains xv, 176 p.; also includes graphics Includes bibliographical references (p. 167-176). Available online via OhioLINK's ETD Center

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Helmling, Stephanie [Verfasser]. "Identification of Mixed Tropical Hardwood (MTH) by characteristic morphological features – a contribution to species protection : Identifizierung von Mixed Tropical Hardwood (MTH) mittels charakteristischer morphologischer Merkmale - ein Beitrag zum Artenschutz / Stephanie Helmling." Hamburg : Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky, 2020. http://d-nb.info/1225481325/34.

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Ludvigsen, Fredrik. "Play-Create-Share Gameplatform for the iPad : Exploring Game Creation Technique on a Touch Screen Platform." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13574.

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This report presents the implementation and analysis of a simple create-andplaygame for the iPad. The game is a platformer with a level editor, utilizingthe iPads touchscreen and acceleration sensor. We believe the results arealso applicable to games, that have level editors, for other types of post-PCtablet devices (Samsung Galaxy Tab, Motorola Xoom etc.).The analysis comprise a usability test with a questionnaire. 33 universitystudents and 4 children attended the test. The attendants were given severalopportunities to provide feedback as free text. The free text answers havealso been c

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Yndestad, Leif Kåre Hornnes. "Particle-based Powder-snow Avalanche Simulation Using GPU." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-15063.

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The main focus of this thesis was the simulation of a powder-snow avalanche flow. The simulation were implemented using the particle-based simulation solution SPH, from a mathematical model describing powder-snow flow dynamics. The simulation was accelerated by applying the computational power of the GPU, in order to provide a faster simulation time than would have been achieved on the CPU.

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Leon, Pozo Pedro. "Bio-inspired Reverse Engineering of Regulatory Networks : A Revised Approach." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-15686.

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This work appears to complement an existingproject, Bio-inpired reverse engineering of regula-tory networks[STH09], proposes a new algorithminspired in the artificial development technique per-forming reverse engineering over regulatory networks.The present project studies that article addressingpossible weaknesses and scalability issues. Neverthe-less, during the investigation some updates have beenperformed over the algorithm, improving the previ-ous results in some scenarios. Moreover DARBNshave been used as representation, looking for an alter-native update schema and its possi

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Engebretsen, Kim Daniel. "World of Wisdom (WoW) 3D." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18377.

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World of Wisdom er et læringsspill som ble startet utviklet av studenter i etfag ved NTNU i 2008. Prototypen har deretter blitt forbedret ved etterfølgendeprosjekter og bidragsyterne og kvalitetssikret av Alf Inge Wang og Bian Wu som veiledende professorer. Prototypen er fullt utviklet til et fungerende spillog evaluert av studenter.Et prosjekt ferdig i desember 2011 evaluerte ulike tilnærminger til åkonvertere 2D-versjonen til en 3D-versjon. De to utgangspunktene, å skrive omde grafiske delene til egen produsert grafikk kode, eller implementere logikk og annen bakenfo

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Nordmark, Njål. "Software Architecture and the Creative Process in Game Development." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18462.

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The goal of this thesis has been to perform research on the relationship between the creative team, software architecture, and game development processes.Researching this relationship was done in three stages. The first stage was a literature review into software architecture and game development. In the second stage a questionnaire was designed based on the literature review, and this questionnaire was then distributed to several game developers. In addition to querying the game developers on their knowledge on the field, they were also asked whether or not they would be willing to answer a s

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Eriksson, Jan, and Dag Øyvind Tornes. "Learning to play Starcraft with Case-based Reasoning : Investigating issues in large-scale case-based planning." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18720.

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In this master thesis we describe our work in creating a planner for the real-time strategy game Starcraft using case-based reasoning. Our work has been focused on the challenges in creating a usable casebase, and the resulting issues arising from scaling up the casebase.First, we present an agent designed to play Starcraft using plans from our CBR planner, and its architecture. We then move on to describe how this planner works, and how it overcomes the challenges in scaling up.We then present several experiments designed to measure how well our approach works given the limitations we have

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Ludvigsen, Marius, and Christian Wallervand. "Gamifying an Oil-Gas-Water Separation Process in a Process Control System to Improve Operators' Motivation, Skills, and Process Understanding." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18798.

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Serious games and its related fields have lately received a lot of interest due to their potential for training and education. Serious games can be defined as (digital) games that are used for reasons other than entertainment. Gamification can be related to serious games and can be defined as the process of game-thinking and game mechanics to engage users and solve problems.The initiator of this project was ABB. ABB delivers a process control system used to control the processes of an oil production facility. One of these processes is separating oil and gas from water. A simulator of this sepa

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Hansen, Finn Robin Kåveland. "Applications of artificial potential fields for real time strategy games : Troop formations and movements used trained potential functions." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-19087.

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This thesis describes the effort of adapting potential field methods towards man-aging groups of units in real-time strategy game like environments. The focus is ondiscovering the suitability for this technology to create realistic group behaviourand whether it can be adapted to use learning for this purpose.A flexible simulation system for units that are controlled by potential fieldmethods in environments similar to those found in real-time strategy games isdeveloped. This is then used to conduct experiments where different types ofgroup behaviour is sought after. Stochastic optimization tec

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Karlsen, Mats-Gøran. "Android object recognition framework." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-19219.

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This thesis is a continuation of the authors specialization project where the ultimate goal is to build an object recognition framework suitable for mobile devices in real world environments, where control over parameters such as illumination, distance, noise and availability of consistent network architectures are limited. Based on shortcomings related to object recognition performance and architectural issues the authors goal was to increase the flexibility, usability and performance of the framework.Literature was reviewed on frameworks in order to discover useful techniques for

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Hansen, André Skoglund. "Distributed Hosting of Systems using donated Computer Resources." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-24453.

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To host a value-added internet service, like a web page with a large user base, an organization either has to rely on cash donations or it has to monetize the service. The monetization of the service often means degrading the quality of the service or making it less appealing. This is why this project introduces a new business model where services can be run by the users themselves by letting them donate computer resources. This again should lower the operating cost of the service. The new business model is introduced by developing a framework that allows developers to implement their services

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Smaaberg, Simen Fivelstad. "Context-Aware Group Recommendation Systems." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-27328.

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For a group of friends going to a concert or a festival, finding concerts that everyone is happy with can be challenging as everyone have their own preferences and wishes when it comes to music.In this thesis, a prototype of a group recommendation system for concerts is presented to solve this issue. The prototype is context sensitive; it takes a user's location and time into account when giving recommendations. The prototype implements three algorithms to recommend concerts by taking advantage of what users have listened to before: a collaborative filtering algorithm (k-Nearest Neighbor)

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Aaberg, Jørgen. "Application for hydropower on a mobile device with focus on front-end." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-27330.

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SINTEF Energy (hereafter called SINTEF) develops complex compu- tational models for energy production in Norway. These models are controlled by command line interfaces when used for testing, in meetings, or in other contexts. They may, to some extent, be visualized with Python or MATLAB scripts, but lacks a good graphical user interface, as well as including the users in an interactive manner. SINTEF desires to look at the capabilities of moving some of todays CLI-based workflow to a mobile environment, with an interactive user interface. They want to expand their view, exploring new way

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Ekeland, Jørgen, and Vegar Engen. "A Middleware for Managing and Sharing Geographical Place Definitions Across Social Networking Services." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-27332.

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This project has been performed as a master thesis and contributes to the UbiCollab project, which is a service-oriented platform for ubiquitous collaboration where social interactions may occur both naturally and unconstrained of situation and location.Social medias have had a rapid growth throughout the last decade.People tend to share everything they do, and where they do it. With the simultaneously growth of mobile applications, application developers integrate social networking services into their application to reach a greater audience. It is easy to integrate one network into their appl

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Perrin, Loïc. "Faisabilité de la valorisation des BHpM comme piégeur de polluant (Crvi) et validation comme MTD." Phd thesis, Ecole Nationale Supérieure des Mines de Saint-Etienne, 2009. http://tel.archives-ouvertes.fr/tel-00788091.

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Le secteur du traitement de surfaces produit un tonnage important de boues d'hydroxydes métalliques (200 ktonnes) lors de la dépollution par précipitation de leurs effluents liquides chargés en métaux lourds. Généralement les boues polymétalliques (sans espèces majoritaires) sont très peu valorisées du fait de leur versatilité importante en teneur métallique et sont donc, pour la plupart d'entre elles envoyées en centre d'enfouissement. Notre étude concerne la valorisation de ces boues comme adsorbant afin de fixer les espèces polluantes contenues dans les effluents industriels. Le polluant ch

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Fairweather, Luke. "Mechanisms of supra MTD topography generation and the interaction of turbidity currents with such deposits." Thesis, University of Aberdeen, 2014. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=215569.

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Mass-transport deposits (MTDs) are virtually ubiquitous on the modern seafloor and common in ancient slope successions. Their upper surfaces are often irregular due to surface topography, which may vary significantly in wavelength and geometry. Turbidity currents are highly sensitive to topography, resulting in the modification of their density and velocity profiles during topographic interaction, thus affecting their depositional architecture. It is therefore expected that supra-MTD turbidite systems are also affected so. Previous analysis of the upper surface of MTDs and conformable overlyin

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Unger, Sebastian Helstad. "Integrating CBR and BN for Decision Making with Imperfect Information : Exemplified by Texas Hold'em Poker." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13497.

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Texas Hold'em poker provides an interesting test-bed for AI research with characteristics such as uncertainty and imperfect information, which can also be found in domains like medical decision making. Poker introduces these characteristics through its stochastic nature and limited information about other players strategy and hidden cards. This thesis presents the development of a Bayesian Case-based Reasoner for Poker (BayCaRP). BayCaRP uses a Bayesian network to model opponent behaviour and infer information about their most likely cards. The case-based reasoner uses this information to make

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Aase, Kim-Georg. "Text Mining of News Articles for Stock Price Predictions." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13573.

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This thesis investigates the prediction of possible stock price changes immediately after news article publications, by automatic analysis of these news articles. Some background information about financial trading theory and text mining is given in addition to an overview of earlier related research in the field of automatic analyzes of news articles for predicting future stock prices. In this thesis a system is designed and implemented to predict stock price trends for the time immediately after the publication of news articles. This system consists mainly of four components. The first compo

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Valle, Kjetil. "Graph-Based Representations for Textual Case-Based Reasoning." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13575.

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This thesis presents a graph-based approach to the problem of text representation. The work is motivated by the need for better representations for use in textual Case-Based Reasoning (CBR). In CBR new problems are solved by reasoning based on similar past problem cases. When the cases are represented in free text format, measuring the similarity between a new problem and previously solved problems become a challenging task. The case documents need to be re-represented before they can be compared/matched.Textual CBR (TCBR) addresses this issue. We investigate automatic re-representation of tex

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Larsen, Erik Andreas. "Classification of EEG Signals in a Brain-Computer Interface System." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13578.

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Electroencephalography (EEG) equipment are becoming more available on thepublic market, which enables more diverse research in a currently narrow field.The Brain-Computer Interface (BCI) community recognize the need for systemsthat makes BCI more user-friendly, real-time, manageable and suited for peoplethat are not forced to use them, like clinical patients, and those who are disabled.Thus, this project is an effort to seek such improvements, having a newly availablemarket product to experiment with: a single channel brain wave reader. However,it is important to stress that this shift in BCI,

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Meidell, Jon Villy Selnes. "Innendørs kart og navigering : 3D visualisering og relasjoner til eksterne data." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13587.

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Målet med denne oppgaven var å demonstrere et konsept om innendørs navigering med 3D kart-visning på android-platformen. Basert på tilgjengelig dokumentasjon, hjelp av noen utvalgte kode og applikasjonseksempler, samt utforsking av en android-enhet ble det gjort observasjoner som gjorde det mulig å selv utvikle en applikasjon for denne platformen.Prosjektet har gitt en god innsikt i android-platformen og programmering med OpenGL ES, som har gitt meg mye ny kunnskap.

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Rødland, Tiril Anette Langfeldt. "Classifying Glyphs : Combining Evolution and Learning." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13631.

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This dissertation investigates the classification capabilities of artificial neural networks (ANNs). The goal is to generalize over the features of a writing system, and thus classify the writing system of a previously unseen glyph. The complexity of the problem necessitates a large network, which hampers the tuning of the weights. ANNs were created using three different hybrids of back-propagation (BP) learning and evolution, and a pure BP algorithm for comparison. The purpose was to find the method best suited for this kind of generalization and classification networks. The results suggest t

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Corneliussen, Snorre Christoffer, and Magnus Westergaard. "Combining offline and online learning in developing an adaptive controller for a simulated car racing environment." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13640.

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This report presents the work done to develop an autonomous driverfor the Simulated Car Racing Championship (SCRC), a competition incomputational intelligence based on The Open Racing Car Simulator(TORCS). Autonomous race driving based only on local sensory datais a complex problem, and previous SCRC entries' work show a widevariety of approaches taken to address it. We describe CRABCAR,a controller that combines oine learning prior to the competitionwith online learning during the competition to optimize its performance in the SCRC context. The presented approach extends and builds on tr

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Berg, Jannik, and Camilla Haukenes Karud. "Swarm intelligence in bio-inspired robotics." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13684.

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In this report, we have explored swarm intelligence through a box-pushing taskwith physical robots called e-pucks. Research on social insects has been presentedtogether with dierent ways of controlling autonomous robots, where combiningthis knowledge has been essential in our quest to make a biological plausible antretrieving system.Inspired by ants and behavior-based robotics, we have created the system CRABS.It is based on Brooks' subsumption architecture to control six dierent behaviors,from a xed input-output scheme. The system is designed to easily handle addingor removal of behavior

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Hamberg, Erlend Heggheim. "Inferring Phylogenies Using Evolutionary Algorithms : A maximum likelihood approach for constructing phylogenetic trees from molecular data." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13687.

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This thesis has evaluated the use of the computationally expensivemaximum-likelihood (ML) method coupled with an evolutionaryalgorithm (EA) for the problem of inferring evolutionaryrelationships among species (phylogenies) from molecular data. MLmethods allow using all the information from molecular data, suchas DNA sequences, and have several beneficial properties compared toother methods. Evolutionary algorithms is a class of optimizationalgorithms that often perform well in complex fitness landscapes.EAs are also proclaimed to be easy to parallelize, an aspect thatis increasingly more impor

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Gåsland, Magne Matre. "Game Mechanic based E-Learning : A case study." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13692.

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This thesis presents a case study of Game Mechanic based E-Learning. This is put forward as a new approach to E-Learning that tries to mimic games to harness some of their motivational properties. A prototype system was developed as a web application, using an Agile and Lean development approach.The system was evaluated with a class at the Norwegian University of Science and Technology.This was done to give an indication of the system's ability to make work with exercises more engaging and fun. To give context in this thesis, the growing trend of Gamification is unveiled and explained in

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Solem, John Sverre. "Intention-aware Sliding Doors." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13696.

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In this project I have designed a model of features, human behavior and intentions. The model suggests a set of features that can be used to describe the interaction between a human being and an automated sliding door. The model also defines symbols representing value sets for the features. The symbols are then combined in order to describe different events, mapping features to intentions. This model provides a framework guiding the capturing process as well as the reasoning process.Further, I have designed a mechanism for capturing human movement and extracting the features as suggested by th

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Unelsrød, Hans Fredrik. "Design and Evaluation of a Recommender System for Course Selection." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13914.

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In this thesis we will construct a recommender system for course selection in higher education (more specifically, at The Norwegian University of Science and Technology). Some of what makes our approach novel compared with existing solutions is that we weight each user in the collaborative filtering process based on their chosen degree subject (major) and wether or not the two users being compared are friends. Also we utilize both collaborative filtering and content-based recommendations in a hybrid solution. Another novel aspect of our solution is that we construct our system on top of an exi

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Bjørkøy, Olav Frihagen. "Adaptive Aggregation of Recommender Systems." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13915.

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In the field of artificial intelligence, recommender systems are methods for predicting the relevance items to a users. The items can be just about anything, for example documents, articles, movies, music, events or other users. Recommender systems examine data such as ratings, query logs, user behavior and social connections to predict what each user will think of each item.Modern recommender systems combine multiple standard recommenders in order to leverage disjoint patterns in available data. By combining different methods, complex predictions that rely on much evidence can be made. These

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Spalluto, Angelo. "Energy Aware RTOS for EFM32." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13918.

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Power consumption is a major concern for portable or battery-operated devices.Recently, new low power consumption techniques have been used to achieveacceptable autonomy battery-powered systems. FreeRTOS is a real-time kernel designedespecially for embedded low-power MCUs. Energy Micro develops and sellsenergy friendly microcontrollers based on the industry leading ARM Cortex-M332-bit architecture. The aim of this thesis is to propose a new FreeRTOS TicklessFramework solution that exploits the power modes provided by EFM32. Three differentsolutions have been proposed, such as FreeRTOS RTC, Fre

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Fossum, Fredrik. "Real-Time Rigid Body Interactions." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13919.

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Rigid body simulations are useful in many areas, most notably video games and computer animation.However, the requirements for accuracy and performance vary greatly between applications.In this project we combine methods and techniques from different sources to implement a rigid body simulation.The simulation uses a particle representation to approximate objects with the intent of reaching better performance at the cost of accuracy.We simulate cubes in order to showcase the behavior of our simulation, and also to highlight its flaws.We also write a graphical interface for our simulation using

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Solheim, Bendik. "Use of Mobile Devices and Multitouch Technologies to Enhance Learning Experiences." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13924.

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The goal of this thesis was to investigate the usage of mobile devices with multitouch capabilities in the learning of procedural knowledge. A system, consisting of three prototypes, was to be implemented as a way of examining our two hypotheses:H1: Through using a conceptual model close to how the human mind perceive objects, we can increase consistency both in the creation of new user manuals and in the learning process.H2: By taking advantage of multitouch technologies we can introduce a more natural way of interacting on virtual representations of real-life objects.A lot of research was co

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Jensen, Johannes Høydahl. "Evolutionary Music Composition : A Quantitative Approach." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-14036.

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Artificial Evolution has shown great potential in the musical domain. One task in which Evolutionary techniques have shown special promise is in the automatic creation or composition of music. However, a major challenge faced when constructing evolutionary music composition systems is finding a suitable fitness function.Several approaches to fitness have been tried. The most common is interactive evaluation. However, major efficiency challenges with such an approach have inspired the search for <i>automatic</i> alternatives.In this thesis, a music composition system is presented fo

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Valderhaug, Thor Kristian. "The Lattice Boltzmann Simulation on Multi-GPU Systems." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-13920.

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The Lattice Boltzmann Method (LBM) is widely used to simulate different types of flow, such as water, oil and gas in porous reservoirs. In the oil industry it is commonly used to estimate petrophysical properties of porous rocks, such as the permeability. To achieve the required accuracy it is necessary to use big simulation models requiring large amounts of memory. The method is highly data intensive making it suitable for offloading to the GPU. However, the limited amount of memory available on modern GPUs severely limits the size of the dataset possible to simulate.In this thesis, we increa

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Strandbråten, Glenn Rune. "Myrmidia : The Warhammer Fantasy Battle Army Builder." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-14196.

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In this thesis, I present an approach to a case-based reasoning system with explanation capabilities in the Warhammer Fantasy Battle domain. This product is meant to support Warhammer gamers in their initial army lineup, by providing suggestions based on previously successful games against an opposing horde. Explanations will be used in order to convey the reasoning behind the solution, to present the data the solution is based upon and why certain changes were made.The created product is capable of creating the army lineup and give partially satisfactory explanations, based on the goals set b

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Lillehaug, Marvin Bredal. "Explanation-aware Case-based Reasoning." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-14197.

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When tasks traditionally performed by humans are automated it is important thatthe machines are able to communicate how these tasks are solved and why. Whena user is surprised by the point of time where the task is executed, there is a needto be able to get an explanation to why this point in time was chosen.This project aims at investigating how intelligent systems in general, and case-based reasoning systems in particular can become explanation-aware. Our aim isprimarily to investigate existing case-based reasoning systems to see if explanation-awareness is achievable. Secondary, our aim is

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Bergheim, Thomas Stian, and Arve Aleksander Nymo Skogvold. "Parallel Algorithms for Neuronal Spike Sorting." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-14199.

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Neurons communicate through electrophysiological signals, which may be recorded using electrodes inserted into living tissue.When a neuron emits a signal, it is referred to as a spike, and an electrode can detect these from multiple neurons.Neuronal spike sorting is the process of classifying the spike activity based on which neuron each spike signal is emitted from.Advances in technology have introduced better recording equipment, which allows the recording of many neurons at the same time.However, clustering software is lagging behind.Currently, spike sorting is often performed semi-manually

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Veøy, Kristian. "Introducing SimiLite : Enabling Similarity Retrieval in SQL." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for datateknikk og informasjonsvitenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-14470.

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This project has implemented SimiLite, a plug-in to SQLite which en-ables the usage of metric indices in SQL tables. SimiLite can easily beextended with different indices, and the indices LAESA and SSSTreehas been implemented and verified.This project has also implemented a framework for easy comparisonof the indices within SimiLite.It was found that while SimiLite causes a slow-down of about 5-10compared to the reference solution for a light metric, this will balanceout quickly once the cost of the metric increases.

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