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Dissertations / Theses on the topic 'Digital twin'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Stadin, Andreas, and la Vaux Oskar de. "Digital twin of crane robot." Thesis, Högskolan i Halmstad, Akademin för informationsteknologi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-44848.

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The creation of digital twins has been on a rise in the last years, and digital twins are becoming an essential part in today's industries. To be able to keep up, the engineering students at Högskolan i Halmstad need to follow and explore the current development. The goal with this project is to introduce digital twins to the students and give them a wider knowledge about the future of manufacturing.In this project a digital twin was developed from a physical crane. The digital twin was made from a CAD model and was imported into a simulator to replicate the physical robot and its parts. The d

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Puolakanaho, J. (Jere). "Digital twin using multivariate prediction." Master's thesis, University of Oulu, 2019. http://jultika.oulu.fi/Record/nbnfioulu-201906212621.

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Abstract. Digital Twin is a digital replica of physical assets, processes and systems that can be used for various purposes. Virtual model is constructed from the corresponding physical model and these two are then connected by generating real time data using sensors. Resent advances in technology have enabled this, because they have made digital environments cost-efficient. The goal is to simulate the real world with minimal physical resources using machine learning, multivariate analysis and other mathematical techniques. Optimally no physical resources go to waste in testing and development

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Riciputi, Jacopo. "Analisi delle piattaforme per Digital Twin." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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Lo scopo di questa tesi è di analizzare il contesto creatosi nell’ultimo decennio attorno ai Digital Twin. La nascita di tecnologie abilitanti ha permesso ai gemelli digitali di essere riconosciuti come tecnologia di riferimento per guidare il percorso evolutivo nei domini applicativi in cui vi è un forte accoppiamento tra il mondo fisico e quello virtuale. Tra di essi troviamo: manifattura, sanità e città intelligenti. Inizialmente questo testo si concentrerà sull’individuare una definizione di riferimento che faccia chiarezza sui requisiti necessari per non fallire nell’adozione dei Di

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Shaik, Aamir Malik, and Matadha Sidhvin Dulevale. "Digital Twin : Visualization-Assisted Corrective Maintenance." Thesis, KTH, Mekatronik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-288098.

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This thesis evaluates the significance of the Digital Twin based data-driven solution, in helping corrective maintenance technicians leverage their multi-disciplinary engineering skills to solve complex mechatronic problems. Due to the complex mechatronic nature of the faults, human involvement is necessary for corrective maintenance. Even today, many industries perform corrective maintenance by following methods that are both time inefficient and error prone. Software/AI based solutions have been widely reported to have failed due to neglect of human aspect in maintenance. The role of human c

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5

Eyring, Andrew Stuart. "Analysis of Closed-Loop Digital Twin." BYU ScholarsArchive, 2021. https://scholarsarchive.byu.edu/etd/9242.

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Given recent advancements in technology and recognizing the evolution of smart manufacturing, the implementation of digital twins for factories and processes is becoming more common and more useful. Additionally, expansion in connectivity, growth in data storage, and the implementation of the Industrial Internet of Things (IIoT) allow for greater opportunities not only with digital twins but closed loop analytics. Discrete Event Simulation (DES) has been used to create digital twins and in some instances fitted with live connections to closely monitor factory operations. However, the benefits

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Ferdousi, Rahatara. "Digital Twin Disease Diagnosis Using Machine Learning." Thesis, Université d'Ottawa / University of Ottawa, 2021. http://hdl.handle.net/10393/42773.

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COVID-19 has led to a surge in the adoption of digital transformation in almost every sector. Digital health and well-being are no exception. For instance, now people get checkupsvia apps or websites instead of visiting a physician. The pandemic has pushed the health-care sector worldwide to advance the adoption of artificial intelligence (AI) capabilities.Considering the demand for AI in supporting the well-being of an individual, we presentthe real-life diagnosis as a digital twin(DT) diagnosis using machine learning. The MachineLearning (ML) technology enables DT to offer a prediction.

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7

Guzina, Luka. "UNDERSTANDING DIGITAL TWIN: A SYSTEMATIC MAPPING STUDY." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-55636.

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Digital Twin is a concept that refers to a virtual representation of manufacturing elements suchas personnel, products, assets and process definitions, a living model that continuously updatesand changes as the physical counterpart changes to represent status, working conditions, productgeometries and resource states in a synchronous manner [1]. The digital representation providesboth the elements and the dynamics of how a physical part operates and lives throughout its lifecycle.In recent years, digital twin caught the attention of many researchers, who investigated its adoptionin various fie

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8

Biglarbegian, Mehrdad. "High Frequency GaN Power Converters Digital Twin." Thesis, The University of North Carolina at Charlotte, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10979304.

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<p> There is a need for a foundation of a research study aimed at investigations on near real-time reliability awareness of Gallium Nitride devices in high-frequency power converters for which we need advanced hardware and algorithms. This dissertation is moving beyond traditional reliability analysis and looking to more applicable and accurate analytical tools by introducing deep learning techniques and advanced sensing solutions. The computational structures will be applied at the edge of the power converter through online sensing and data processing units as well as on a remote server. They

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Grandinetti, Francesco Salvatore. "Studio dell'applicazione dei digital twin in ambito ospedaliero." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/16787/.

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All'interno del mondo dell'industria 4.0, negli ultimi anni è stato introdotto un elemento molto importante che serve alle imprese per ridurre ulteriormente i costi interni e per massimizzare il profitto, il Digital Twin. Il digital twin permette di poter creare un'astrazione dell'oggetto reale all'interno del mondo digitale e con questa astrazione è possibile fare previsioni su comportamenti futuri o su possibili problematiche che potrebbero affliggere l'elemento in questione. Lo scopo principale di questo documento è studiare se i digital twin, elementi importantissimi nel campo industrial

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Albraikan, Amani. "inHarmony: a Digital Twin for Emotional Well-being." Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/39232.

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A digital twin is an enabling technology that facilitates monitoring, understanding, and providing continuous feedback to improve quality of life and well-being. Thus, a digital twin can consider a solution to enhance one's mood to improve the quality of life and emotional well-being. However, there remains a long road ahead until we reach digital twin systems that are capable of empowering development and the deployment of digital twins. This is because there are so many elements and components that can guide the design of a digital twin. This thesis provides a general discussion for the cen

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Макаренко, О. І. "Застосування технології Digital Twin в забезпеченні енергоефективності навчального закладу". Thesis, Київський національний університет технологій та дизайну, 2019. https://er.knutd.edu.ua/handle/123456789/13789.

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Efendic, Nedim. "Creating a Digital Twin by Using Real World Sensors." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-92249.

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Örebro University and Akademiska Hus have started an initiative towards smart buildings. Avery important role to this is Digital Twin for buildings. Digital twin for buildings is a virtualcopy of a physical building. And by adding a Data Driven Simulation System, an even moresmart building could be achieved. Given a humidity-, temperature-, illuminance- and motionsensor in a specific corridor at the Örebro University, this thesis will ascertain what can bedone by creating a Data Driven Simulation System and using these sensors to achieve thedesired smart building. In this thesis, a simulation

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Gilligan, Brian Kenneth. "Electric ship digital twin : framework for cyber-physical system security." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/122264.

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Thesis: S.M. in Naval Architecture and Marine Engineering, Massachusetts Institute of Technology, Department of Mechanical Engineering, 2019<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 90-95).<br>This thesis presents a dynamic model that can be used for a digital twin of an electric ship. The model is an end-to-end simulation of a ship from prime mover to maneuvering, seakeeping, and propeller ventilation in random waves representing the behavior of a physical ship. There is a trend towards increasingly networked sensors and actuators to enable condit

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Norlin, Olivia, Lotta Rydin, Matilda Maxwell, Good Linnéa Gauffin, Maija Persson, and Viktor Öhrner. "Digital Twin of a diagnostic system : A proposal of a Digital Twin framework for the Transportable Culture Cabinet, with levels of application possibilities and its challenges." Thesis, Uppsala universitet, Institutionen för biologisk grundutbildning, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-412088.

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The Digital Twin (DT) is a concept that is gaining more and more attention. A DT is a virtualversion of a physical product, which can be used in monitoring and developing said physical product.In this report we have discussed how a DT of a Transportable Culture Cabinet (TCC) could beimplemented, and its framework. The TCC is being developed at Q-linea and will be used for culturingblood samples for faster diagnosis of sepsis. A DT of a TCC could be used to monitor the statusof the sample and the physical product itself. Data from the TCC could also be used by the DTto detect and predict failur

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Ravi, Rahul. "Digital Twin of an Automatic Machine Using Unity and Prespective Software." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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Digital Twin is the modern way of prototyping. It is a new layer on top of an existing model, extending the possibilities. This thesis work was carried out and developed at the research laboratory “LIAM LAB”. The main focus was to study the efficacy in developing a Digital Twin of an automatic machine in detail. It is a packaging machine (Technocoil 2200) from “SICA” using PRESPECTIVE, a Digital Twining software based on a game engine UNITY3D. Digital Twin tools and solutions are offered by many major companies, but these have the potential disadvantage of vendor lock-in. Although these brands

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Håkansson, Johannes. "Plant Model Generator from Digital Twin for Purpose of Formal Verification." Thesis, Luleå tekniska universitet, Institutionen för system- och rymdteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-83360.

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This master thesis will cover a way to automatically generate a formal model for plant verification from plant traces. The solution will be developed from trace data, stemming from a model of a digital twin of a physical plant. The final goal is to automatically generate a formal model of the plant that can be used for model checking for verifying the safety and functional properties of the actual plant. The solution for this specific setup will be generalized and a general approach for other systems will be discussed. Furthermore, state machine generation will be introduced. This includes gen

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Larsson, Rasmus. "Creating Digital Twin Distributed Networks Using Switches With Programmable Data Plane." Thesis, Linköpings universitet, Programvara och system, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-175359.

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The domain specific language P4 is a novel initiative which extends the Software-Defined Networking (SDN) paradigm by allowing for data plane programmability. Network virtualisation is a class of network technologies which can be used to abstract the addressing in a network, allowing multiple tenants to utilise the network resources while being agnostic to the underlying network and the other tenants. In other words, twins of tenants using the same addresses can co-exist on the same underlying network. If a twin is a distributed network, it may even be spread out across multiple sites which ar

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Sund, Fabian, and Gustav Erbing. "Battery Digital Twin : Modeling and Characterization of a Lithium-Ion Battery." Thesis, Linköpings universitet, Fordonssystem, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-175918.

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Electrical vehicles have become more popular during recent years due to their reduced greenhouse gas emissions. The research within Li-ion batteries is therefore moving fast. Presently, two-level converters transforming the current from DC to AC. However, an alternative method of power conversion is by utilizing modular multilevel converters, which can perform better harmonics than the two-level converter. This study aims to research the impact of these converters on battery cell heat generation. In doing so, developing a digital twin of the Li-ion battery cell, which in this case is a Samsung

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Nerlikar, Vivek. "Digital Twin in Structural Health Monitoring for Aerospace using Machine Learning." Electronic Thesis or Diss., université Paris-Saclay, 2023. http://www.theses.fr/2023UPASG080.

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Les systèmes industriels modernes utilisent souvent une combinaison de matériaux tels que les métaux, le béton et les composites, soigneusement optimisés pour obtenir des performances supérieures tout en minimisant les coûts. Les structures sont principalement soumises à des charges dynamiques pendant leur durée de vie. Les problèmes de fabrication et/ou les sollicitations perpétuelles entraînent souvent des changements dans un système qui ont un impact négatif sur ses performances actuelles et/ou futures; ces changements peuvent être définis comme des dommages. L'identification des dommages e

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Laamarti, Fedwa. "Towards Standardized Digital Twins for Health, Sport, and Well-being." Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/39502.

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MAROCCO, MARCO. "Digital building management through Digital Twins and Data Science technologies." Doctoral thesis, Università degli Studi di Trieste, 2023. https://hdl.handle.net/11368/3042539.

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The management of buildings has been currently gaining momentum in the construction industry. Public and private organisations which deal with managing facilities are interested in and needy to use any means to run their business as best as possible. Indeed, the life cycle of buildings is distributed in an asymmetric way, where the longest part regards the operational phase, leading to a huge importance to this stage. Traditionally, buildings used to be managed by using paper-based documents, personal experience, and manual analysis approaches. This implied loss of data and separated data silo

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Reggiani, Edoardo. "Digital Twin development for the discrete event simulation of a ceramic system." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

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The rapid evolution of customer's demand forces the industrial sector to find out new solutions for the optimization of the overall process. The improvement of technology allows to transform factories into smart factories, or cyber physical systems. This transformation is inside the concept of Industry 4.0. The Digital Twin is one of its key aspects, which is nowadays fundamental to achieve the market global leadership. This process underlines that the past approach of process definition and development is now too slow and too much flat in the results. The complexity problem leads to a non d

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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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Wågberg, Felix. "Deliberate and Emergent Strategies for Digital Twin Utilization : A PLM-Principal’s Perspective." Thesis, Uppsala universitet, Industriell teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-390555.

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The industry has during the past decades been changing towardsdigitalization at a rapid pace, adapting new frameworks and digitalsolutions, with the thrive to improve efficiency, and output quality.This thesis covers how a hyped industry concept, digital twin, incontext of smart manufacturing, could be applied in this changingclimate. Focus is put on what strategies a Product LifecycleManagement (PLM) principal could adapt when approaching theutilization of digital twins, in a customer setting. The research project, using a qualitative exploration format,incorporated a thorough review of journ

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Giulianelli, Andrea. "Studio e sviluppo prototipale di un middleware per ecosistemi interoperabili di Digital Twins." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/24260/.

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Il termine “Digital Twin”, coniato nel 2003 da Michael Grieves e presentato all’Università del Michigan, è oggi un concetto protagonista in praticamente qualsiasi settore. I Digital Twins si riferiscono all’abilità di clonare un asset fisico attraverso una replica digitale software. La replica software rispecchia l’asset fisico in tutte le sue proprietà e caratteristiche e consente di inserire un layer di astrazione che permette di lavorare con tutte le più importanti tecnologie, come l’Intelligenza Artificiale o qualsiasi forma di Simulazione. Questo abilita la replicazione di interi ambienti

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Bestjak, Linnea, and Cassandra Lindqvist. "Assessment of How Digital Twin Can Be Utilized in Manufacturing Companies to Create Business Value." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-48161.

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Introduction The paradigm shift in manufacturing that Industry 4.0 brings forth with new advanced technologies and the rapid growth of sensing and controlling technologies enable further visualization and optimization that can contribute to achievingimproved decision-making in manufacturing. A significant new capability is the ability to construct a Digital Twinthat connects the physical and virtual space. However, there are still confusion and obscurity regarding what Digital Twinis and how it can becreated and then used to create value for the company. Therefor the purpose of the thesis is t

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Lu, Ruodan. "Automated generation of geometric digital twins of existing reinforced concrete bridges." Thesis, University of Cambridge, 2019. https://www.repository.cam.ac.uk/handle/1810/289430.

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The cost and effort of modelling existing bridges from point clouds currently outweighs the perceived benefits of the resulting model. The time required for generating a geometric Bridge Information Model, a holistic data model which has recently become known as a "Digital Twin", of an existing bridge from Point Cloud Data is roughly ten times greater than laser scanning it. There is a pressing need to automate this process. This is particularly true for the highway infrastructure sector because Bridge Digital Twin Generation is an efficient means for documenting bridge condition data. Based o

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Gustafsson, Ted, Lukas Rajala, Lukas Nee, et al. "Medicinsk digital tvilling : Den digitala människokroppen." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-167034.

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Den här rapporten behandlar ett projekt utfört i kandidatkursen TDDD96 - Kandidatprojekt i programvaruutveckling. Projektet är utfört av åtta studenter från datateknik- ochmjukvaruteknikprogrammen på Linköpings universitet (LiU) för kunden från institutionen för medicinsk teknik (IMT) på LiU. Syftet med projektet var att ta fram en prototypmed ett grafiskt gränssnitt för uppvisning och simulering av hur kroppen påverkas av t.ex.träning, sömn och kostintag. Modellerna som simulerats är framtagna av forskningsgrup-pen integrativ system biologi för institutionen för medicinsk teknik LiU och resul

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Rajendran, Ajith, and Gautham Asokan. "Real Time Monitoring of Machining Process and Data Gathering for Digital Twin Optimization." Thesis, KTH, Industriell produktion, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-301594.

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In the development stages of a Digital twin of production assets, especially machine tools, real time process monitoring and data gathering proves to be vital. Having a monitoring system that monitors and updates the operators or managers in real time, helps improve productivity in terms of reducing downtime through predictive/preventive analytics and by incorporating in process quality assessment capabilities. When it comes to Real time monitoring of machine tools andprocesses, sensor technologies have proven to be the most effective and widely researched. Years of research and development ha

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Radicchi, Giovanni. "Digital Twin nel campo delle costruzioni - Un caso di studio in ambito domotico." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2022. http://amslaurea.unibo.it/25846/.

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La tesi mira ad esplorare l'applicazione del concetto di Digital Twin agli edifici abitativi. I digital twin sono sistemi che utilizzano una rete di sensori e dispositivi IoT per monitorare e digitalizzare lo stato di un oggetto fisico, creando un suo gemello digitale con cui le applicazioni possano interagire per espandere le funzionalità dell'oggetto fisico stesso. Per raggiungere lo scopo prefissato è stata effettuata una ricerca con l'obiettivo di individuare le caratteristiche principali che un DT deve possedere, specialmente nell'ambito delle costruzioni. Le informazioni così ottenute so

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Gámez, Díaz Rogelio. "Digital Twin Coaching for Edge Computing Using Deep Learning Based 2D Pose Estimation." Thesis, Université d'Ottawa / University of Ottawa, 2021. http://hdl.handle.net/10393/42007.

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In these challenging times caused by the COVID-19, technology that leverages Artificial Intelligence potential can help people cope with the pandemic. For example, people looking to perform physical exercises while in quarantine. We also find another opportunity in the widespread adoption of mobile smart devices, making complex Artificial Intelligence (AI) models accessible to the average user. Taking advantage of this situation, we propose a Smart Coaching experience on the Edge with our Digital Twin Coaching (DTC) architecture. Since the general population is advised to work from home, sede

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Huang, Chengxue, and Hampus Wranér. "Lifecycle management and smart manufacturing: Modelling and implementation to utilize the digital twin." Thesis, KTH, Industriell produktion, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-232369.

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Smart manufacturing – smart factories creating smart products – is a topic which has arisen in the academic as well as business community. This thesis covers smart manufacturing in the context of lifecycle management. The thesis investigated how the standard Product Life Cycle Support (PLCS) could be used to support smart manufacturing and mainly how to develop the underlying system and information infrastructure. Standards, reports and specifications for smart manufacturing were investigated. Several information models were created from these publications which could be used for implementing

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Trefusio, Arianna <1995&gt. "TWIN-BANK TRASFORMATION: traditional, digital e FinTech. Sfide e Opportunità nel mondo Finance." Master's Degree Thesis, Università Ca' Foscari Venezia, 2022. http://hdl.handle.net/10579/21403.

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Bill Gates dichiarò che “the world needs banking not bank”. Si iniziò il processo di ricerca verso la digitalizzazione del sistema Finanziario, unendo la terminologia finanza con tecnologia: Fintech. Le aziende Fintech stanno destando subbugli nel sistema bancario proponendo alla loro clientela, private e retail, soluzioni finanziarie vantaggiosi specie per quanto riguardano i costi. La digitalizzazione automatizzò la maggior parte dei servizi, permettendo l’abbattimento di costi ma specialmente far risparmiar tempo ai customers. Quest’approccio sta mettendo in discussione non solo il modello

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Persson, Proos Daniel. "Enabling Digital Twins : A comparative study on messaging protocols and serialization formats for Digital Twins in IoV." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-159318.

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In this thesis, the trade-offs between latency and transmitted data volume in vehicle-to-cloud communication for different choices of application layer messaging protocols and binary serialization formats are studied. This is done with the purpose of getting enough performance improvement to enable delay-sensitive Intelligent Transport System (ITS) features, and to reduce data usage in mobile networks. The studied protocols are Constrained Application Protocol (CoAP), Advanced Message Queuing Protocol (AMQP) and Message Queuing Telemetry Transport (MQTT), and the serialization formats studied

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Di, Nicola Felice. "Decommissioning of an offshore platform as a wind turbine support by using digital twin." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022.

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The aim of the research project is the decommissioning of an existing oil and gas platform located in the Adriatic Sea and the re-utilization of the three-legs jacket as wind turbine support The project consists of two main phases. In the first phase, the existing structure, the oil and gas platform, is examined through the structural analysis using an RB-FEA software considering the in-place loads applied. Further, the fatigue analysis is performed in order to assess the resistance of the structure respect the long terms environmental actions caused by waves. In the second phase, the

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Erthle, Thomas. "Industry 4.0 : A reference model for a digital twin of a collaborative manufacturing cell." Thesis, Högskolan i Skövde, Institutionen för ingenjörsvetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-18882.

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With the advance of the fourth industrial revolution, the manufacturing industry is increasingly changing. The intelligent networking of machines and the collection of real-time data opens up new possibilities for data-based decision making. One of those applications is the digital twin. Those are digital copies of physical objects that represent the behavior of their real-world counterparts. Therefore they consist of several models to describe this behavior. The use of digital twins for virtual commissioning has been proven to reduce real commissioning time as errors can be identified and fix

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Tabbah, Alyaá. "Evaluating digital twin data exchange between a virtual and physical environment regarding lighting quantity." Thesis, Jönköping University, JTH, Byggnadsteknik och belysningsvetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-53737.

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Building Information Management and Digital Twin technology with help of Smart lights can optimizethe built environment impacting our health and well-being, by providing the right amount of light at theright time of day. Lighting simulation is challenging, due to the strict requirements to represent reality. Digitaltwin technology will provide a more dynamic two-way feed-back between the physical and the virtual environmentto optimize the lighting environment giving real-time sensor data. The main problem that currently occurswhile evaluating a lighting design made in photorealistic computer v

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Puidokas, Vytenis. "Design and Research on Sigma-Delta Digital-to-Analog Converters for Audio Power Amplifiers." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20111220_133108-90590.

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The dissertation investigates the issues of analyzing a digital Sigma-Delta digital-to-analog converter (DAC) for audio power amplifiers. The main objects of research include a digital Sigma-Delta audio power DAC, improvement of its structure and an experimental research. The primary purpose of the dissertation is to suggest methods for improvement the structure of digital Sigma-Delta audio power DAC interpolator and the converter analysis.<br>Disertacijoje nagrinėjami Sigma-Delta skaitmeniniai-analoginiai (skaičiaus-analogo, SA) keitikliai garso galios stiprintuvams. Pagrindinis tyrimų objekt

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Schroeder, Greyce Nogueira. "Metodologia de modelagem e arquitetura de referência do Digital Twin em sistemas ciber físicos industriais usando AutomationML." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/182314.

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Com as evoluções tecnológicas nas áreas de hardware, microeletrônica, sistemas de informação e computação, o conceito de sistemas ciberfísicos (do inglês Cyber-Physical Systems) vem ganhando importância. Este sistemas se referem à junção entre sistemas computacionais distribuídos e processos físicos da natureza e, são base fundamental para a nova revolução industrial que esta sendo introduzida. Esta revolução industrial é marcada pela completa descentralização do controle dos processos produtivos e uma proliferação de dispositivos inteligentes interconectados, ao longo de toda a cadeia de prod

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Björklund, Ludvig. "An FMI-compliant process tracking simulator of a multi-effect evaporation plant." Thesis, Luleå tekniska universitet, Energivetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-80866.

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Andersson, Ebba, and Kajsa Eckerwall. "Enabling Successful Collaboration on Digital Platforms in the Manufacturing Industry : A Study of Digital Twins." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-74523.

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Purpose – The purpose of this study is to enhance the understanding of how to successfully collaborate on digital platforms in the manufacturing industry by developing a contingency framework. To fulfill this purpose, the following research questions were derived: RQ1: Which challenges arise when collaborating on digital platforms in the manufacturing industry? and RQ2: How can collaboration challenges on digital platforms in the manufacturing industry be managed? Method – The study was conducted as an explorative, inductive single case study of a digital platform. More specifically, the study

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Gabellini, Matteo. "Il Paradigma Digital Twin: studio e proposta di un metamodello con esempio applicativo al contesto Healthcare." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/20418/.

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Negli ultimi anni si sta diffondendo sempre più l'uso del concetto di Digital Twin in relazione all'Industria 4.0. Nonostante ciò, l'origine del Digital Twin non è legata a tale contesto, ma una prima forma associabile a questo concetto è individuabile fin dai primi anni duemila. L'evoluzione del Digital Twin, dall'origine ad oggi, si è sviluppata in percorsi differenti dando origine per alcuni ad un vero e proprio paradigma. A causa della presenza di differenti percorsi di sviluppo, è possibile trovare diverse visioni, alcune anche con aspetti contrastanti, le quali spesso sono legate allo sp

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Uddin, Md Mehrab. "Development of Advanced Process Control for Controlling a Digital Twin as a Part of Virtual Commissioning." Thesis, Högskolan i Gävle, Elektronik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-37079.

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Over the last few decades, the complexity and variety of automation systems have increased dramatically. Commissioning has grown more and more critical for the entire industry. Conventional commissioning is time-consuming and expensive. It's always been a challenge in manufacturing to put new designs into production or implement new technologies, control codes, or tactics. In Virtual Commissioning (VC), control programs of the physical system's Digital Twin (DT) can be validated in Software-in-the-Loop (SIL) before the actual commissioning. The emergence of new VC tools and methods has become

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Kor, Mergen. "Integration of Digital Twin and Deep Learning for facilitating Smart Planning and Construction: An Exploratory Analysis." Thesis, Jönköping University, JTH, Byggnadsteknik och belysningsvetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-53385.

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The Architecture, Engineering, and Construction (AEC) industry is known to be overwhelmed with resource planning, risk management, and logistic challenges, resulting in design defects, project delivery delays, cost overruns, and contractual disputes. These challenges have instigated research in the application of advanced machine learning algorithms such as Deep learning (DL) to help with diagnostic and prescriptive analysis of causes and preventive measures. Construction 4.0 develops through continuous innovations towards digitalization and intelligence, in order to realize a considerable boo

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SALACHORIS, GEORGIOS PANAGIOTIS. "Exploiting Artificial Intelligence to build realistic numerical models: A Digital Twin application in Structural Health Monitoring." Doctoral thesis, Università Politecnica delle Marche, 2022. http://hdl.handle.net/11566/295395.

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Structural Health Monitoring ha ricevuto un ampio riconoscimento e sviluppo negli ultimi anni. Sono stati fatti progressi in molti campi, come le tecnologie di rilevamento, le applicazioni e l'elaborazione dei dati. A causa della crescente necessità di preservare gli edifici del patrimonio culturale che sono interessati dall'ambiente multi-pericoloso e in particolare dai terremoti, l'automazione delle tecniche di monitoraggio della salute strutturale è diventata un importante argomento di ricerca. La conservazione del patrimonio culturale richiede la combinazione di indagini in situ e modelli

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Boillet, Alice. "optimization of racing strategies using mechanical, and physiological digital twin models : applications in rowing and cycling." Electronic Thesis or Diss., Institut polytechnique de Paris, 2024. http://www.theses.fr/2024IPPAX062.

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Cette thèse explore l'optimisation des stratégies de course (humaines) en intégrant des modèles mécaniques et physiologiques, et se concentre sur l'aviron et le cyclisme. Tout d’abord, une vue d'ensemble des sports de course souligne l'importance d'optimiser les performances en fonction de la puissance produite pendant la course. Les principes physiologiques de la production d'énergie lors d’efforts physiques sont présentés.Une étude expérimentale révèle comment les athlètes réagissent à différentes stratégies de pacing pour une distance fixe. Un modèle de production d'énergie musculaire est p

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Noora, Jay Maryam. "Defining infrastructure requirements for the creation of Digital Twins." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-51051.

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Along with the evolution of the new technologies such as industrial internet of things (IIoT), big data, cloud computing, artificial intelligence (AI), etc., the amalgamation between the cyber and physical worlds in the industrial field has become necessary to realize and achieve the smart factory and increase its productivity. The emergence of the Digital Twin (DT) concept as a technology that ties the physical and digital worlds has gained significant attention around the world during the last years. However, this concept is relatively new; the literature related to this concept is limited,

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BLOMKVIST, YLVA, and LOENBOM LEO ULLEMAR. "Improving supply chain visibility within logistics by implementing a Digital Twin : A case study at Scania Logistics." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279054.

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As organisations adapt to the rigorous demands set by global markets, the supply chains that constitute their logistics networks become increasingly complex. This often has a detrimental effect on the supply chain visibility within the organisation, which may in turn have a negative impact on the core business of the organisation. This paper aims to determine how organisations can benefit in terms of improving their logistical supply chain visibility by implementing a Digital Twin — an all-encompassing virtual representation of the physical assets that constitute the logistics system. Furtherm

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Urbani, Michele. "Maintenance policies optimization in the Industry 4.0 paradigm." Doctoral thesis, Università degli studi di Trento, 2021. http://hdl.handle.net/11572/323269.

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Maintenance management is a relevant issue in modern technical systems due to its financial, safety, and environmental implications. The need to rely on physical assets makes maintenance a necessary evil, which, on the other hand, allows achieving a high quality of end products, or services, and a safety level that is adequate for the regulatory requirements. The advent of the fourth industrial revolution offers meaningful opportunities to improve maintenance management; technologies such as Cyber-Physical Systems, the Internet of Things, and cloud computing enable realizing modern infrastruct

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Ganestål, Teodor, André Palmborg, Adrian Royo, et al. "Digital Tvilling : Visualisering av personlig hälsodata." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-158150.

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Detta projekt är givet som ett kandidatarbete i mjukvaruutveckling vid Linköpingsuniversitet, i kursen TDDD96 Kandidatprojekt i programvaruutveckling. Arbetet är utfört aven grupp tredjeårsstudenter på D- och U-programmen.Projektet ges av forskargruppen för integrerad systembiologi på IMT LiU, som utvecklarmatematiska modeller av biologiska system. Dessa modeller kan användas för att förståsystemen bättre, eller som beslutsstöd inom farmakologi och vård. Forskargruppens fokusför tillfället är att sammankoppla modeller för olika delar av människokroppen till en helhetsbildsom beskriver delsyste

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