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Rozprawy doktorskie na temat „Simulations STM”

Autor: Grafiati

Data publikacji: 28 września 2024

Data aktualizacji: 31 lipca 2025

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1

Lesnard, Hervé. "Structure électronique de molécules aromatiques sur une surface sondée par STM : apports récents des simulations." Lyon, École normale supérieure (sciences), 2009. http://www.theses.fr/2009ENSL0553.

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Mes travaux théoriques concernent les potentialités du microscope STM pour induire deux types d’excitations locales, soit vibrationnelle soit électronique, sur des molécules aromatiques isolées adsorbées sur des surfaces. La spectroscopie vibrationnelle sous le microscope à effet tunnel (IETS pour «Inelastic Electron Tunneling Spectroscopy») est une technique récente qui mesure le spectre vibrationnel d’une seule molécule déposée sur une surface conductrice. A partir d’une tension seuil, on peut exciter une vibration moléculaire qui se traduit par un pic dans la dérivée de la conductance par r

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2

Vu, Van Binh. "Theoretical studies of novel graphene based nanostructures." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASP039.

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Depuis sa découverte, le graphène est devenu un centre de recherche et d'intérêt important en raison de ses caractéristiques mécaniques, thermiques et électriques exceptionnelles. Néanmoins, l'absence de bande interdite dans le graphène constitue un obstacle aux applications dans les domaines de l'optique, de la nanoélectronique et de la spintronique. L'ingénierie de la bande interdite impliquant la nanostructuration du graphène a été développée au fil des ans, par exemple par confinement quantique, pour surmonter cette limitation. Ce travail théorique est consacré à la modification des répons

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Parditka, Bence. "Investigation of diffusion and solid state reactions on the nanoscale in silicon based systems of high industrial potential : experiments and simulations." Thesis, Aix-Marseille, 2013. http://www.theses.fr/2013AIXM4348/document.

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La première partie de mes résultats concerne les phénomènes de diffusion induits par des effets de contrainte. Nous avons étudié ces effets d’un point de vu théorique, afin de comprendre le rôle de la contrainte dans la diffusion. Les résultats montrent que l’effet de contrainte ne semble pas induire d’effet mesurable sur le coefficient cinétique à l’interface, cependant le taux de mélange semble diminuer. La seconde partie concerne des mesures expérimentales, par EXAFS et GIXRF utilisées sur des empilements Ta/a-Si/Ni/a-Si/Ta/substrat permettant de suivre la formation des phases ainsi que la

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4

Boukari, Khaoula. "De la molécule unique au tapis supramoléculaire sur surface de silicium passivée : Simulations numériques à l'échelle atomique." Thesis, Mulhouse, 2013. http://www.theses.fr/2013MULH8858/document.

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Ma thèse porte sur l’étude par simulations numériques à l’échelle atomique de l’adsorption de molécules uniques et d’auto-assemblages moléculaires sur la surface de silicium Si(111) dopée bore notée Si(111) (√(3 ) x√3)R30°-B. Après un premier chapitre de présentation des méthodes de calcul, puis un chapitre consacré à la surface Si(111)-B, la thèse se divise en deux grandes parties : l’une concernant l’adsorption de molécules uniques et l’autre consacrée à l’adsorption de tapis moléculaire.La première partie concerne l’adsorption de molécules uniques sur la surface de Si(111) (√(3 ) x√3)R30°-B

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5

Robinson, Michael C. "A study of the diffusion of Pb on Au(111) using scanning tunneling microscopy (STM), with a comparison to embedded atom method (EAM) and surface embedded atom method (SEAM) simulations." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ52846.pdf.

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Laird, Rob. "Sim City : the simulation of ideology /." Title page, table of contents and introduction only, 2005. http://web4.library.adelaide.edu.au/theses/09AR/09arl188.pdf.

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7

Watcharasukarn, Montira. "Travel Adaptive Capacity Assessment Simulation (TACA Sim)." Thesis, University of Canterbury. Mechanical Engineering, 2010. http://hdl.handle.net/10092/5119.

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More than 95% of fuel used for personal transportation is petroleum-based (Environment and Development Division (EDD), 2005). The peak and decline of world oil production is producing price and uncertainty pressures that may cause significant travel behaviour change in the future. Current travel behaviour has developed during conditions of low cost fuel and government investment in private vehicle mobility. Current urban forms and land use have also been developed during a period of growth in vehicle travel demand. Research that explores the long term (permanent oil supply reduction period) im

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8

Deniz, Ertan. "Dds Based Mil-std-1553b Data Bus Interface Simulation." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614852/index.pdf.

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This thesis describes distributed simulation of MIL-STD-1553B Serial Data Bus interface and protocol based on the Data Distribution Service (DDS) middleware standard. The data bus connects avionics system components and transports information among them in an aircraft. It is important for system designers to be able to evaluate and verify their component interfaces at the design phase. The 1553 serial data bus requires specialized hardware and wiring to operate, thus it is expensive and complex to verify component interfaces. Therefore modeling the bus on commonly available hardware and networ

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9

Petersson, Jenny. "3D-simulation som avprovningsmetod : Inriktat mot tights för sportutövning." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-14789.

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Denna studie om 3D-avprovning för sport-tights är en kandidatuppsats i designteknik. Företaget studien är utvecklad för jobbar med sportkläder och har i dagsläget ett intresse av att använda sig av 3D-simulering som avprovningsmetod. Vid utveckling av tights anpassade för träning skickas i dagsläget flera prototyper mellan företaget och leverantören innan produkten kan börja produceras. För att framtagningen av produkten ska ta mindre tid, bli mer miljövänlig och kosta mindre undersöker studien om 3D-avprovning är applicerbart i företagets process för produktframtagning. För att kontrollera va

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10

Holt, Jennifer A. "THz Systems: Spectroscopy and Simulation." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1417536443.

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11

Abuelyaman, Eltayeb Salih. "Sequential circuits fault simulation using fan out stem based techniques." Diss., The University of Arizona, 1988. http://hdl.handle.net/10150/184466.

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This dissertation describes a new simulation technique for an automatic test generation system, SCIRTSS version 4.0 (Sequential Circuit Test Sequence System). This test generation system is driven by the hardware compiler AHPL, a Hardware Programming Language, and an intelligent heuristic-based search for test vector generation. Using a fault-injection gate-level simulator and the generated test vector, all the faulty states of the circuit are simulated in parallel and the simulator is thus able to find all detected faults by a particular input sequence. The major objective of this research wa

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12

Baca, Dawnielle C. "DATA ACQUISITION, ANALYSIS, AND SIMULATION SYSTEM (DAAS)." International Foundation for Telemetering, 1994. http://hdl.handle.net/10150/608561.

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International Telemetering Conference Proceedings / October 17-20, 1994 / Town & Country Hotel and Conference Center, San Diego, California<br>The Data Acquisition, Analysis, and Simulation System (DAAS) is a computer system designed to allow data sources on spacecraft in the Flight System Testbed (FST) to be monitored, analyzed, and simulated. This system will be used primarily by personnel in the Flight System Testbed, flight project designers, and test engineers to investigate new technology that may prove useful across many flight projects. Furthermore, it will be used to test various

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13

St-Georges, Kim. "Modélisation et simulation du phénomène de diffusion des progiciels de gestion intégrée au sein de réseaux industriels." Mémoire, École de technologie supérieure, 2007. http://espace.etsmtl.ca/230/1/ST%2DGEORGES_Kim.pdf.

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Le phénomène de concurrence internationale auquel les entreprises font face aujourd'hui les pousse à optimiser leur gestion d'information. Les systèmes de gestion intégrée, soit les systèmes ERP (Enterprise Resource Planning), permettent ainsi aux entreprises d'optimiser leur gestion d'information en intégrant une grande quantité d'information en temps réel selon une structure d'affaire complexe. Actuellement, une panoplie de systèmes ERP sont disponibles et plusieurs éditeurs se livrent concurrence pour offrir un progiciel toujours plus performant. Afin de se tailler une place parmi la

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14

Öman, Love. "Examination of a Damaged Slitting Knife using Scanning Electron Microscopy and Finite Element Simulations." Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-86126.

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At voestalpine Precision Strip AB, the slitting process is used frequently. Slitting is a commonly applied manufacturing technique during sheet metal processing that aims to split large coils of sheet metal into narrower widths. The coiled sheets are uncoiled and transferred to a slitter, where they pass between rotating circular knives that produce long and straight cuts, splitting the wide sheet into desired widths. However, during operation, their slitting knives are occasionally damaged. This means that the knives must be replaced, which wastes both time and money. The goal of this proje

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15

Tang, Yi. "SUNSHINE: Integrate TOSSIM and P-Sim." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/40721.

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Simulators are important tools for wireless sensor network (sensornet) design and evaluation. However, existing simulators only support evaluations of protocols and software aspects of sensornet design. Thus they cannot accurately capture the significant impacts of various hardware designs on sensornet performance. To fill in the gap, we proposed SUNSHINE, a scalable hardware-software cross-domain simulator for sensornet applications. SUNSHINE is the first sensornet simulator that effectively supports joint evaluation and design of sensor hardware and software performance in a networked conte

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Babaji, G. A. "Some plant stem properties and overland flow hydraulics : a laboratory simulation." Thesis, Cranfield University, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293314.

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17

Hogg, Glynn A. "Multi-stem mechanised harvesting operation analysis : application of discrete-event simulation." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/1973.

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Thesis (MScFor (Forest and Wood Science))--University of Stellenbosch, 2009.<br>In this study, a multi-stem harvesting operation was observed and time studies carried out on its machines. A stump-to-mill simulation model (System 1) of this system was subsequently built using a commercial simulation software package (Arena 9) and data from the time studies were incorporated into the model. Following this, another two stump-to-mill multistem models (Systems 2 and 3) were built using the same simulation software package and parameterised input data. These two models represented hypothetical

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18

Lüder, Stephan, Marcel Graf, Birgit Awiszus, Thoufeili Taufek, and Yupiter HP Manurung. "Methoden und Herausforderungen bei der numerischen Simulation des selektiven Laserschmelzens (SLM)." Technische Universität Chemnitz, 2019. https://monarch.qucosa.de/id/qucosa%3A34096.

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Additive Fertigungsverfahren stellen in den letzten Jahren einen Megatrend dar, da sich mit diesen Verfahren endkonturnahe Werkstücke mit hohem Materialausnutzungsgrad herstellen lassen. Die auch als 3D-Druck bekannt gewordenen additiven Fertigungsverfahren sind jedoch nicht auf die Prototypenfertigung aus Kunststoffen begrenzt. Beim selektiven Laserschmelzen werden metallische Werkstoffe im Pulverbettverfahren mittels Laserstrahl aufgeschmolzen und somit schichtweise aufgebaut. Das Verfahren findet bereits in der Luft- und Raumfahrt, der Medizintechnik, aber auch in der Automobilindustrie und

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19

Stapelfeldt, Thim Frederik [Verfasser], and Roland [Akademischer Betreuer] Wiesendanger. "Simulation of the SP-STM induced magnetization switching of nanowires and nanoislands / Thim Frederik Stapelfeldt. Betreuer: Roland Wiesendanger." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2014. http://d-nb.info/1054422486/34.

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Vigano, Andre De Souza. "Simulation of an SP8T 18 GHz RF Switch Using SMT PIN Diodes." DigitalCommons@CalPoly, 2020. https://digitalcommons.calpoly.edu/theses/2259.

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Radio frequency (RF) and microwave switches are widely used in several different applications including radar, measurement systems, telecommunications, and other areas. An RF switch can control a radar’s transmit vs. receive mode, select the operating band, or direct an RF signal to different paths. In this study, a single pole eight throw (SP8T) switch using only Surface Mount (SMT) components is designed and simulated in Keysight’s Advanced Design System (ADS). Single pole eight throw is defined as one input and eight possible outputs. A star network configuration with series-shunt PIN diode

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21

Susin, Marcos José. "Estudo e desenvolvimento de um atuador planar de armadura sem núcleo ferromagnético." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/150579.

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Este trabalho apresenta a proposta de topologia para um atuador planar sem núcleo ferromagnético na armadura, sua análise teórica em termos de forças de tração que nele atuam, seu desenvolvimento e resultados teóricos e experimentais obtidos como base em um protótipo construído. O atuador planar tem características inovadoras: uma armadura estacionária sem ferro com enrolamentos ortogonais e dois carros acoplados magneticamente um ao outro com quatro ímãs permanentes de NdFeB de alto produto energético. A armadura desse estator é composta por enrolamentos planares multifases colocados de tal m

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Zhang, Fangyi. "Learning real-world visuo-motor policies from simulation." Thesis, Queensland University of Technology, 2018. https://eprints.qut.edu.au/121471/1/Fangyi%20Zhang%20Thesis.pdf.

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This thesis explores how simulation can be used to create the large amount of data required to teach a robot certain hand-eye coordination skills. It advances the state-of-the-art of deep visuo-motor policy learning by introducing a new modular architecture, a novel reinforcement learning exploration strategy, and adversarial discriminative transfer.

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Pant, Gaurav, I. Felician Campean, Aleksandrs Korsunovs, Daniel Neagu, and Oscar Garcia-Afonso. "Hybrid Dynamic Modelling of Engine Emissions on Multi-Physics Simulation Platform." SAE, 2020. http://hdl.handle.net/10454/18376.

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Yes<br>This paper introduces a hybrid dynamic modelling approach for the prediction of NOx emissions for a Diesel engine, based on a multi-physics simulation platform coupling a 1-D air path model (GT-Suite) with in-cylinder combustion model (CMCL Stochastic Reactor Model Engine Suite). The key motivation for this research was the requirement to establish a real time stochastic simulation capability for emissions predictions early in engine development, which required the replacement of the slow combustion chemistry solver (SRM) with an appropriate surrogate model. The novelty of the approach

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Mo, Yamin. "Terra - An Open Digital Twin Framework for Simulation-to-Real AI Development." Thesis, The University of Sydney, 2021. https://hdl.handle.net/2123/25799.

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The development of artificial intelligence (AI) based robot policies such as embodied visual AI is a rapidly emerging field that promises to fully automate robot sensing and control, reducing the need for expert knowledge and information about system dynamics. The recent surge in the availability of digital simulation environments has helped to alleviate the data scarcity problem faced by AI training and yielded many tasks for embodied AI to explore. In contrast to conventional computer vision databases (e.g. ImageNet, COCO), they provide interactive environments tailored to the training of em

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Wallace, Peter Duncan. "SMT goes ABMS : developing strategic management theory using agent-based modelling and simulation." Thesis, Durham University, 2009. http://etheses.dur.ac.uk/258/.

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For the emerging complexity theory of strategy (CTS), organizations are complex adaptive systems able to co-evolve with their dynamic environments through interaction and response, rather than purely analysis and planning. A promising approach within the CTS context, is to focus on a strategic logic of opportunity pursuit, one in which the distributed decision-makers behave audaciously despite unpredictable, unstable environments. Although there is only emergent support for it, intriguingly organizations can perform better when these decision-makers ‘throw caution to the wind’ even at their ow

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Lundstedt, Moa, and Sofie Hronek. "Förbättring av produktionsmiljö med hjälp av automation : Med Discrete Event Simulation som verktyg." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-35743.

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In order to meet the expectations of today’s market and compete in the global world we live in, many companies are facing changes. A low cost production and high quality is not enough to be competitive. Companies must also satisfy the external customers’ claims, which to a great extent imply demands on an increased productivity. It is not enough to look to the external customers. The people working within the production system are the internal customers and the production system must be designed to suit their needs. Increased productivity can be stressful for operators, especially in the autom

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27

Abelsson, Anna. "Simulering som lärande inom prehospital akutsjukvård." Doctoral thesis, Karlstads universitet, Institutionen för hälsovetenskaper, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-48243.

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Den prehospitala akutsjukvården är ett komplext kunskapsfält som innebär att vårdaren skall kunna bemöta patient och närstående, bedöma skada, sjukdom och den aktuella situationen samt avgöra vilka vårdåtgärder som skall prioriteras. Patientens lidande kan lindras genom att vårdaren tränar färdigheter i ett prehospitalt kontext. Detta främjar en god och säker vård samt stärker patientens möjligheter till överlevnad. Resultatet visar på behovet av simulering inom prehospital akutsjukvård. Med simulering lär sig vårdaren att hantera realistiska, dynamiska och komplexa vårdsituationer, vilket ska

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Szekely, Tamas. "Stochastic modelling and simulation in cell biology." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:f9b8dbe6-d96d-414c-ac06-909cff639f8c.

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Modelling and simulation are essential to modern research in cell biology. This thesis follows a journey starting from the construction of new stochastic methods for discrete biochemical systems to using them to simulate a population of interacting haematopoietic stem cell lineages. The first part of this thesis is on discrete stochastic methods. We develop two new methods, the stochastic extrapolation framework and the Stochastic Bulirsch-Stoer methods. These are based on the Richardson extrapolation technique, which is widely used in ordinary differential equation solvers. We believed that i

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29

Diktas, Emine Guncem. "A multi-analytical protocol combining EDXRF, SEM+EDS, μXRD and Monte Carlo simulations applied to analyse non-destructively portuguese corroded copper coins". Master's thesis, Universidade de Évora, 2018. http://hdl.handle.net/10174/24464.

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Performing quantitative analyses on archaeological and cultural heritage metallic artefacts is challenging due to their complex multi-layered internal structure. “Layers” may include a) Original metal and/or alloy substrate (gold, silver, bronze etc.) b) Surface patinas enriched in corrosion products sulphides, oxides and/or chlorides compounds c) Protective treatments applied in past conservation interventions d) Soil derived incrustations from archaeological burial environment. To obtain compositional data on the metal substrate, usually these layers have to be removed but this not always po

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Ekblom, Jonas, and John Andersson. "Value-at-Risk : Historisk simulering som konkurrenskraftig beräkningsmodell." Thesis, Linköping University, Department of Management and Engineering, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-12599.

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<p>Value-at-Risk (VaR) is among financial institutions a commonly used tool for measuring market risk. Several methods to calculate VaR exists and different implementations often results in different VaR forecasts. An interesting implementation is historical simulation, and the purpose of this thesis is to examine whether historical simulation with dynamic volatility updating is useful as a model to calculate VaR and how this differs in regard to type of asset or instrument. To carry out the investigation six different models are implemented, which then are tested for statistical accuracy thro

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Rajasimha, Harsha Karur. "Insights Into Mitochondrial Genetic and Morphologic Dynamics Gained by Stochastic Simulation." Diss., Virginia Tech, 2007. http://hdl.handle.net/10919/29961.

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MtDNA mutations in mammalian cells are implicated in cellular ageing and encephalomyopathies, although mechanisms involved are not completely understood. The mitochondrial genetic bottleneck has puzzled biologists for a long time. Approximate models of genetic bottleneck proposed in the literature do not accurately model underlying biology. Recent studies indicate mitochondrial morphology changes during cellular aging in culture. In particular, the rates of mitochondrial fission and fusion are shown to be in tight balance, though this rate decreases with age. Some proteins involved in mitochon

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Sarabian, Mohammad. "Experimental Investigations and Direct Numerical Simulations of Rigid Particles in ShearFlows of Newtonian and Complex Fluids." Ohio University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1582821437191013.

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Magnusson, Anton. "Hardware-In-the-Loop simulation of a small scale prototype of a Wave Energy Converter." Thesis, Blekinge Tekniska Högskola, Institutionen för maskinteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-20698.

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Renewable energy sources are a hot topic, both when it comes to climate change and the constant increase in demand of electricity due to population growth and a more electrified society. One such energy source is wave energy - an energy source with great potential but still relatively new with the need for further development. Blekinge Institute of Technology (BTH) together with Ocean Harvesting Technologies (OHT) have made a collaboration to build a scaled Hardware-In-the-Loop (HIL) system of a power take-off (PTO) based on OHTs wave energy converter, InfinityWEC. The purpose is to teach the

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Kolozsvari, Nicoleta. "Sim one, do one, teach one: considerations in designing training curricula for surgical simulation." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=103718.

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Background: Although there is value in the use of simulation for the acquisition of fundamental surgical skills through goal-directed practice in a safe environment, there is little evidence guiding educators on how to best implement simulation within surgical skills curricula. This thesis reviews the application of the expert-performance model in surgery and the role of simulation in surgical skills acquisition. The focus is on implementation of deliberate practice, highlighting the principles of proficiency-based training, part-task training and overtraining. In a randomized controlled tria

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Johnson, Michael S. "Advancements in the Solid-state Impact-ionization Multiplier (SIM) Through Theory, Simulation and Design." BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/2636.

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This dissertation outlines the study and development of a Solid-state Impact-ionization Multiplier (SIM). The SIM is a stand-alone current amplifier designed with optical detection systems in mind. The SIM amplifies signals utilizing impact ionization as a source of gain. The SIM is fabricated on silicon in order to take advantage of its favorable impact ionization coefficients. Utilizing silicon in impact ionization based gain devices makes low noise and high gains attainable. Because it is a stand-alone device, it can be wired to an arbitrary current source making it capable of receiving an

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Євсєєв, В. В., Н. П. Демська та Ю. М. Олександров. "Моделювання виробничої лінії SMT-монтажу в кібер-фізичних виробничих системах". Thesis, Кременчуцький національний університет імені Михайла Остроградського, 2022. https://openarchive.nure.ua/handle/document/20422.

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Industry 4.0 визначає бачення і принципи функціонування Smart Manufacturing. Таке підприємство використовує модульну структуру, кібер-фізичні системи контролюють фізичні та інформаційні процеси, створюючи своєрідну віртуальну копію реального світу, де приймають децентралізовані рішення. За допомогою Internet of Things (IoT) кібер-фізичні системи з'єднуються і взаємодіють одна з однією та людьми в реальному часі.

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Krepkin, Konstantin. "The Role of Cooperation in Pre-tumor Progression: A Cellular Population Dynamics Model." Yale University, 2010. http://ymtdl.med.yale.edu/theses/available/etd-03042010-195339/.

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Competition among cells has long been recognized as an important part of the evolutionary process of tissue leading up to the development of cancer. However, the role of cellular cooperation in cancer has been largely ignored. In this work, we investigated the role of cooperation in early tumor progression using a mathematical and agent-based modeling approach. We hoped to learn whether cooperation between cells in spatially organized tissue has a significant role in hastening tumor development, and to uncover general principles governing such cooperation. We focused on the early stages of tum

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Blanc, Guylaine. "Selection assistee par marqueurs (sam) dans un dispositif multiparental connecte - application au maÏs et approche par simulations." Phd thesis, INAPG (AgroParisTech), 2006. http://pastel.archives-ouvertes.fr/pastel-00003478.

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L'avènement des marqueurs moléculaires dans les années 80 a ouvert de nouvelles perspectives pour l'identification de locus impliqués dans la variation de caractères quantitatifs (QTL). De nombreuses études, notamment théoriques, ont montré que l'utilisation en sélection des marqueurs associés aux QTL (la Sélection Assistée par Marqueurs, SAM) pourrait permettre un gain d'efficacité par rapport à la sélection conventionnelle. En génétique végétale, la plupart des expériences de détection de QTL sont réalisées dans des populations issues du croisement entre deux lignées pures. Ainsi, beaucoup d

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Blanc, Guylaine. "Sélection assistée par marqueurs (SAM) dans un dispositif multiparental connecté : application au maïs et approche par simulations." Paris, Institut national d'agronomie de Paris Grignon, 2006. http://www.theses.fr/2006INAP0039.

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Coulston, John Wesley. "SIMULATING FOREST STANDS BY RESAMPLING ONE-ACRE STEM MAPS: SPATIAL CHARACTERISTICS OF RESULTS." NCSU, 1999. http://www.lib.ncsu.edu/theses/available/etd-19990323-181716.

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<p> The purpose of this research is to generate forest stands for sampling simulations on anoperational level. In this research, a simulated forest stand consists of x and y coordinates ofstems and their attributes. One-acre stem maps are mapped stem locations and attributes from thefield. The simulation procedure is a two step process. The first step is to create discrete samplesfrom a one-acre stem map. Secondly, the discrete samples are selected randomly withreplacement and placed adjacently until a simulated forest stand of desired size and shape is built. The simulated forest stands are t

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Mohamood, Fayez. "DLL-Conscious Instruction Fetch Optimization for SMT Processors." Thesis, Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/10560.

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Simultaneous multithreading (SMT) processors can issue multiple instructions from distinct processes or threads in the same cycle. This technique effectively increases the overall throughput by keeping the pipeline resources more occupied at the potential expense of reducing single thread performance due to resource sharing. In the software domain, an increasing number of Dynamically Linked Libraries (DLL) are used by applications and operating systems, providing better flexibility and modularity, and enabling code sharing. It is observed that a significant amount of execution time in softwar

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Saro, Alexandro. "Galactic population in cosmological hierarchical models." Doctoral thesis, Università degli studi di Trieste, 2009. http://hdl.handle.net/10077/3066.

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2007/2008<br>Il lavoro di ricerca è stato orientato allo studio delle proprietà delle strutture su grande scala dell'Universo. In particolar modo si sono studiate le proprietà ottiche e fisiche di popolazioni sintetiche di galassie in ammassi di galassie in ambito cosmologico all'interno dello scenario gerarchico. Abbiamo affrontato il problema della formazione galattica seguendo due approcci complementari. Una linea di ricerca svolta è stata indirizzata allo studio della popolazione galattica in ammassi di galassie, utilizzando simulazioni idrodinamiche cosmologiche. A tale scopo si sono a

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Agouzoul, Asmaâ. "Nouvelles méthodes numériques pour la simulation de l’impression 3D métallique." Thesis, Bordeaux, 2020. http://www.theses.fr/2020BORD0004.

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Le procédé SLM offre de nouvelles perspectives en termes de conception de pièces. Cependant, les phénomènes thermo-mécaniques liés au procédé sont responsables des contraintes résiduelles et de la distorsion de la pièce fabriquée. La simulation numérique est un outil intéressant pour mieux cerner les phénomènes physiques à l’œuvre et leur impact sur la qualité de la pièce. Dans cette thèse, nous proposons différentes approches qui permettent de réaliser les simulations à moindre coût, en utilisant des algorithmes de réduction de modèles. Les résultats sont comparés à ceux obtenus par la méthod

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Vincent, Timothy John. "Computational Modeling and Simulation of Thermal-Fluid Flow and Topology Formation in Laser Metal Additive Manufacturing." University of Dayton / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1512398718245784.

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Prill, Torben. "Caractérisation et modélisation de structures carbonées nanoporeuses." Thesis, Paris, ENMP, 2014. http://www.theses.fr/2014ENMP0073/document.

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L'objectif de la thèse présentée ici est l'optimisation de matériaux carbonésnanoporeux au moyen de la “conception de matériaux virtuels”. En ce qui concerne cette échelle de travail (~ 10nm), la Nanotomographie FIB-SEM est la seule technique d'imagerie donnant accès à une information sur la géométrie tridimensionnelle. Cependant, pour l'optimisation du comportement, l'espace des pores doit être reconstruit à partir des données tirées des images obtenues. Jusqu'à présent ce problème n'était pas résolu. Pour pouvoir le maîtriser, on a développé une simulation d'images FIB-SEM. Les images FIB-SE

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Alipčenkov, Timur. "Řízení dodavatelských řetězců a jejich optimalizace." Master's thesis, Vysoká škola ekonomická v Praze, 2007. http://www.nusl.cz/ntk/nusl-12411.

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Dissertation work comes with a summary of logistics evolution in the sphere of Supply Chain Management and focuses readers attention on the processes inside of supply chain. However dissertaion work is not just a huge methodological part, it also comes with an optimization part. Reader meets imaginary company trying to optimize a part of its distribution process by using modification of distribution technology "Hub and Spoke". Optimization computational procedure also consist of Traveller Salesman Problem (TSP). Fictional data for three days of testing where prepared by using MS Excel function

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Dusselier, Hallie E. "Understanding 20th Century Antarctic Pressure Variability and Change in Multiple Climate Model Simulations." Ohio University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1469189473.

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Nosek, Jakub. "Analýza teplotního chování procesu aditivní výroby mikro-prutových struktur z materiálu AlSi10Mg." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443192.

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Using Additive manufacturing it is possible to manufacture complicated components, that cannot be manufactured using conventional methods. The typical example is the lattice structure. Fabrication of these structures is complicated, and it is different from the fabrication of bulk parts. Using numerical simulation which can reflect process parameters it is possible to analyze the thermal behaviour of vertical and inclined struts fabrication. Results show that the diameter of struts influences weld track width. This influence is caused by preheating the powder material by previous scanning path

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Jirsák, Petr. "Informační podpora manažerského rozhodování v logistice (SCM) - simulace." Doctoral thesis, Vysoká škola ekonomická v Praze, 2009. http://www.nusl.cz/ntk/nusl-72788.

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The thesis is focused on SCM and information support for supply chain managers with emphasis on modelling and simulation. The first main aim of the work is to verify the method for applicability in SCM problem solution. The second main aim is to analyse supply chains by means of modelling and simulation and find the most suitable supply chains for the area of The New economics. The third main aim is to analyse behaviour of supply chains under changing factors on which the supply chains are initially modelled. The output of this work is applicable in the theory, practice and education

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Monavari, Benyamin. "SHM-based structural deterioration assessment." Thesis, Queensland University of Technology, 2019. https://eprints.qut.edu.au/132660/1/Benyamin%20Monavari%20Thesis.pdf.

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This research has successfully developed an effective methodology to detect and locate deterioration as well as estimate its severity in the presence of environmental and operational (E&O) variations and high level of measurement noise. It developed a novel data normalization procedure to diminish the E&O variations and high level of noise content; and developed thirteen time-series based deterioration indicators to detect deterioration. The proposed methods were verified utilising measured data from different numerically simulated case studies and laboratory tests, and their efficiency is dem

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