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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
311

A quality-centered approach for web application engineering / Une approche centrée sur la qualité pour l'ingénierie des applications Web

Do, Tuan Anh 18 December 2018 (has links)
Les développeurs d'applications Web ne sont pas tous des experts. Même s'ils utilisent des méthodes telles que UWE (UML web engineering) et les outils CASE, ils ne sont pas toujours capables de prendre de bonnes décisions concernant le contenu de l'application web, le schéma de navigation et / ou la présentation des informations. La littérature leur fournit de nombreuses lignes directrices (guidelines) pour ces tâches. Cependant, ces connaissances sont disséminées dans de nombreuses sources et non structurées. Dans cette dissertation, nous capitalisons sur les connaissances offertes par ces lignes directrices. Notre contribution est triple: (i) nous proposons un méta-modèle permettant une représentation riche de ces lignes directrices, (ii) nous proposons une grammaire permettant la description des lignes directrices existantes, (iii) sur la base de cette grammaire, nous développons un outil de gestion des lignes directrices . Nous enrichissons la méthode UWE avec cette base de connaissances menant à une approche basée sur la qualité. Ainsi, notre outil enrichit les prototypes existants d'ingénierie logicielle assistée par ordinateur basés sur UWE avec des conseils ad hoc. / Web application developers are not all experts. Even if they use methods such as UWE (UML web engineering) and CASE tools, they are not always able to make good decisions regarding the content of the web application, the navigation schema, and/or the presentation of information. Literature provides them with many guidelines for these tasks. However this knowledge is disseminated in many sources and not structured. In this dissertation, we perform a knowledge capitalization of all these guidelines. The contribution is threefold: (i) we propose a meta-model allowing a rich representation of these guidelines, (ii) we propose a grammar enabling the description of existing guidelines, (iii) based on this grammar, we developed a guideline management tool. We enrich the UWE method with this knowledge base leading to a quality based approach. Thus, our tool enriches existing UWE-based Computer Aided Software Engineering prototypes with ad hoc guidance.
312

Approche applicative de la continuité des services en mobilité dans un milieu hétérogène / Applicative continuity approach of mobile services in heterogeneous environments

Verdot, Vincent 09 December 2009 (has links)
L’Homme est aujourd’hui au centre d’une sphère électronique composée de terminaux hétérogènes capables d’offrir des services similaires. Il choisit désormais l’interface adaptée à ses besoins, passant librement d’un terminal à un autre pour bénéficier d’un même service. Cette liberté induit de nouvelles problématiques de mobilité ayant un impact direct sur l’expérience utilisateur. L’état de l’art fait apparaître deux catégories de services aux caractéristiques propres : des services applicatifs revêtant diverses formes (applications locales et distantes) et des services de télécommunications reposant sur des infrastructures standardisées. L’étude des contraintes de mobilité et des approches existantes révèle que les solutions actuelles dans ce domaine sont incomplètes et ne peuvent assurer une continuité de bout en bout : désignation, transfert, adaptation, etc. Nous avons implémenté des mécanismes de continuité dans les environnements ims et web pour des services de télécommunications et multimédias afin de mettre en évidence les lacunes des solutions existantes, et identifier les fonctions élémentaires d’une gestion globale de la mobilité. Le résultat de ces travaux révèle qu’une approche plus abstraite du concept de service est nécessaire dans la définition d’un modèle générique de continuité adapté au milieu hétérogène de l’utilisateur. Nous avons introduit de nouveaux concepts et des mécanismes de mobilité originaux que nous avons ensuite implémentés dans un "distributed Service Manager". Enfin nous avons évalué ce modèle grâce à des tests qualitatifs et quantitatifs sur un prototype selon un scénario de transfert d’un service d’édition de texte dans un milieu hétérogène. Les résultats particulièrement satisfaisants prouvent la faisabilité de notre solution et son adéquation avec les contraintes de continuités temporelle et contextuelle / People now live within an electronic sphere of heterogenous devices providing similar services. From now on they can freely choose the best interface corresponding to their needs, switching from a device to another while enjoying a same service. This freedom leverage new mobility issues that directly impact the user experience. The state of the art introduces two services types with specific properties : applicative services commonly known as local or remote applications and telecommunication services based on standardised infrastructures. The study of the mobility constraints and the existing approaches shows that current solutions in this domain are incomplete and cannot assure an end-to-end continuity : selection, transfer, adaptation, etc. We implemented continuity mechanisms in the ims and web environments for telecommunication and multimedia services in order to emphasize the lacks of the existing solutions and identify the basic features of a unified mobility management model. These works led to a more abstract vision of the service concept, required to define a generic continuity model adapted to the user’s heterogeneous environment. We introduced innovative concepts and original mobility mechanisms, which we implemented in a "distributed Service Manager". Finally, we evaluated this model with qualitative and quantitative tests on a prototype according to a transfer scenario of text-edition service in a heterogeneous environment. Results are very satisfying, they prove the feasibility of our solution and its adequacy with the temporal and contextual constraints
313

Investigation of SiPM physics parameters down to cryogenic temperatures and for a bio-medical application / Etude des détecteurs SiPM jusqu’aux températures cryogéniques et pour une application biomédicale

Nagai, Andrii 22 September 2016 (has links)
Les Photomultiplicateurs Silicium (SiPM) sont devenus aujourd’hui des détecteurs de lumière visible, applicables dans de nombreux domaines comme la Physique des Hautes Énergies, les expériences Neutrinos, la détection de fluorescence, pour des applications de biophotonique ou d’imagerie médicale. La première partie de ma thèse concerne l’étude des divers paramètres physiques des SiPM en fonction de température T. En particulier, des composants récents (2015) de KETEK ayant diverses caractéristiques technologiques comme des jonctions p/n ou n/p, avec ou sans « trench » entre cellules, différentes épaisseurs de couches épitaxiales, etc… ont été étudiés dans la gamme de T de 308.15 K (+35°C) à 238.15 K (-35°C). En plus, des composants Hamamatsu de production 2011, ainsi que de production 2015 avec des caractéristiques technologiques améliorées (faible bruit), ont été testés dans la gamme 318.15 K (+45°C) à 98.15 K (-175°C). Pour ces études, j’ai participé à la conception, l’installation, la mise en service et la calibration d’un banc cryogénique destiné aux caractérisations électriques, optiques, et en température, des SiPM. J’ai développé une procédure d’analyse automatisée, capable de traiter en un temps très court une énorme quantité de données expérimentales (i.e. dizaines de Gb/détecteur), et de fournir une information rapide et précise sur les principaux paramètres et leur dépendance en T. J’ai développé un modèle physique décrivant les courbes IV en DC pour différentes T. Ce modèle proposé reproduit bien la forme de la courbe IV dans une large gamme de courants allant de 10⁻¹² à 10⁻⁵ A sur toute la zone de fonctionnement des divers détecteurs. Ainsi, le modèle IV peut être utilisé comme un outil simple et rapide pour déterminer les paramètres du SiPM comme le VBD, la forme de la courbe PGeiger en fonction de Vbias, ainsi que la plage des tensions de fonctionnement. La comparaison de ces paramètres avec ceux obtenus en mesure AC, et analysés par la procédure automatisée, sont en bonne concordance. La seconde partie de ma thèse a porté sur l’étude de composants SiPM spécialement adaptés à une application biomédicale. Il s’agit d’une sonde intracérébrale, sensible à l’émission β (Nβ) de molécules marquées par un traceur radioactif, injectées dans le cerveau d’un animal vivant. Le but étant de construire un nouveau "modèle animal" de maladies humaines telles que les maladies neuro-dégénératives ou neuropsychiatriques et la croissance de tumeurs. Cette sonde se compose d’un SiPM de très petite taille, bas bruit, couplé à une fibre scintillante, suivie d’une électronique de lecture spécifique, miniaturisée, à faible consommation. Ces SiPM ont été choisis comme les plus adaptés à notre application : deux SiPM de KETEK de 0.5x0.5 mm² (spécialement développés par cette compagnie pour nos besoins), et un SiPM standard de 1.3x1.3 mm² de Hamamatsu, tous ayant des μ-cellules de 50 × 50 μm². Pour chaque composant, les paramètres G, DCR et la sensibilité β ont été mesurés en fonction de Vbias et T. Les résultats obtenus montrent que le faible champ de vue des nouvelles structures KETEK permet une bonne amélioration du DCR. Cependant ce faible champ de vue entraîne une perte de collection de lumière due à l’épaisseur de la couche de résine époxy de protection, et à l’angle d’acceptante de la fibre. Comme la sensibilité β est un compromis entre le PDE et le DCR, les SiPM de KETEK montrent au final des performances voisines de celles de Hamamatsu. Les résultats préliminaires démontrent que la sensibilité β de KETEK peut être améliorée significativement en utilisant une lentille de focalisation entre la fibre scintillante et le SiPM, ou en diminuant l’épaisseur de la couche de résine époxy de protection. / Silicon PhotoMultiplier (SiPM) detector has become a suitable visible light/photon detector for many applications like high energy physics and neutrino experiments, fluorescence detection, bio-photonics and medical imaging. The first part of my thesis was oriented to the studies of SiPM physics parameters as a function of temperature. Particularly, recent KETEK devices (year 2015) with different technological characteristics like p/n and n/p junctions, with and without trench technology, and different widths of epitaxial layer were studied in the temperature range from 308.15 K (+35°C) down to 238.15 K (-35°C). In addition, the Hamamatsu devices from 2011 production run as well as new devices from 2015 year, with improved technological characteristics inducing a reduced noise, were investigated in a wider temperature range from 318.15 K (+45°C) down to 98.15 K (-175°C). For these purposes, I participated to the design, installation, commissioning and calibration of a cryogenic experimental setup dedicated to electrical, optical and temperature studies of SiPM devices. Also, I have developed an automatic analysis procedure able to handle in a short time an impressive quantity of experimental data (i.e. tens of Gb/device) and to give a precise and fast information on main SiPM parameters and their temperature dependence. I have also developed a physical modeldescribing the DC I-V curves of SiPM detectors at different temperatures. The proposed model fits well the shape of IV curve in a very large currents range from 10⁻¹² A up to 10⁻⁵ A over the full working range of various devices. Consequently, the IV model can be used as a simple and fast method for determination of SiPM parameters like breakdown voltage VBD, the shape of Geiger triggering probability PGeiger as a function of Vbias as well as the Vbias working range. The comparison of these parameters with those calculated from AC measurements and analyzed by the automatic procedure showed a good agreement. The second part of my thesis was oriented to the study of SiPM devices and their physical parameters required to build a prototype of betasensitive intracerebral probe. Such probe is dedicated to measure the local concentration of radiolabeled molecules on awake and freely moving animal and to study new animal models of human disorders (neurodegenerative diseases, tumor growth, and neuropsychiatric disorders). It is composed of small size, low-noise SiPM device coupled to a scintillating fiber and readout by a dedicated miniaturized low-power consumption electronics. Three SiPM devices have been chosen as the most adapted for our application: two small KETEK devices of 0.5×0.5 mm² size (with and without optical trenches, specially developed by KETEK to fulfill our requirements) and a standard Hamamatsu device of 1.3×1.3 mm² size, all devices having 50 × 50 μm² μcell size. For each SiPM the gain G, dark count rate DCR and beta sensitivity were measured as a function of Vbias and temperature. The obtained results showed that the small field of view and newly developed structure of the KETEK devices allow a large decrease of the dark count rate DCR. However, this small field of view also leads to a reduced light collection due to the thickness of the epoxy protection resin on top of the SiPM and the acceptance angle of the fiber. Since the beta sensitivity represents a tradeoff between photon detection efficiency PDE and dark count rate DCR, KETEK SiPMs exhibit similar performances in comparison with the Hamamatsu device. Preliminary results demonstrate that the beta sensitivity of KETEK devices can be significantly improved by using focusing lens between the scintillating fiber and the SiPM or by reducing the thickness of its epoxy protection resin.
314

Leveraging Commercial and Open Source Software to Process and Visualize Advanced 3D Models on a Web-Based Software Platform

Saraf, Nikita Sandip January 2020 (has links)
No description available.
315

RAPIDLY SCALING DIGITAL TRANSFORMATIONS OF HEALTHCARE SYSTEMS / LEVERAGING CLOUD-BASED LOW-CODE DEVELOPMENT PLATFORMS WITH DEVSECOPS GUIDELINES TO RAPIDLY SCALE THE DIGITAL TRANSFORMATION OF HEALTHCARE SYSTEMS

Olatunji, Ekene Titilope 06 1900 (has links)
The job of healthcare professionals in the healthcare sector has never been more critical than now due to the current unprecedented rate of long-term IT infrastructural changes and digital transformation. The 2019/2020 COVID-19 pandemic has been a major driver of these changes. Cultivating a culture of digital innovation and transformation is now at the forefront of the healthcare value-chain. There is an increased need to optimize the operations of the healthcare system, improve collaboration among Health Teams and deliver more agile and secure applications to support both clinical and administrative processes in healthcare institutions. These driving forces require a vision and strategy for digital transformation in the healthcare system, involving a closer look at modern DevSecOps best practices in the application development process. The fast-growing popularity of Cloud Computing has driven the consideration of Low-Code Development Platforms (LCDP), built securely in the cloud infrastructure, to support the transformation of the healthcare system. Low-Code Development Platforms are being considered by enterprises around the world to deliver rapid software development, continuous delivery, and continuous integration of their application systems. The William Osler Health System is recognized for its adoption of technological innovations for improved patient experience and satisfaction. Its innovations include the use of the Microsoft Cloud for Healthcare platforms; and Microsoft 365 and Power Platform services with embedded Low-Code technology to automate and optimize internal operational processes. The aim of this master’s thesis is to demystify the concept of cloud-based Low-Code Application Development approaches to healthcare software development by using a case study of a healthcare application within the systems being built to support operational processes in the William Osler Health System. This study contrasts challenges of current internal tools and methods of operations, communication, and application development in the organization, with the potential benefits of using cloud-based Low-Code platforms to drive digital transformation. / Thesis / Master of Science (MSc)
316

"Mobile Fashion" Application

Kashanipour, Morvarid January 2012 (has links)
This master thesis investigates studies on fashion oriented people according to the "Outfit-Centric Accessories" concept. The outfit-centric accessories concept originated from recent research study by Juhlin and Zhang (2011) about mobile phone representation in fashion and Aesthetic of Interaction area of Human-Computer Interaction (HCI). The term outfit-centric accessories originated from clothing and wearer. In this concept an outfit is playing a role as the centerpiece and a mobile phone is functioning as a sort of an accessory that can be added to an outfit. The main aim here is to explore design solution for matching the visual appearance of mobile device with different outfit of a person. The first phase of this thesis is based on a research conducted through a literature review on the Aesthetic Interaction and the Experience-Centered design approach. Literature study has been followed by studies the relation between the fashion and technology and the outfit-centric accessories concept precisely. The findings that are presented here are based on field studies on fashion oriented people who are interested in mobile phone design. Filed studies were conducted through gathering input entries from social networking services such as Facebook and Blogger, survey of questionnaire on outfit matching mechanism, and inquiring people around. The findings are described the outfit "Match Mechanism" and the "social activities around the outfit matching" in relation to the concept. These descriptions have led the project to the system design and development phase regarding the outfit-centric accessories concept. This phase resulted in the Android based mobile application named "Mobile Fashion". This application enables a user to match a mobile device with variety of clothing in the form of a background image, cover, or printable sticker (skin phone) and it allows a user to participate in social services by sharing the look with others. It is worth mentioning that "Mobile Fashion" application presented in Vinnova-nytt (June 2011, No.3, p15) and International Joint Conference on Ambient Intelligent (AmI'11 November, 16, 2011, Amsterdam) (see appendix 14 and 15).
317

A Comparative Study on Powder Processing of Partially Crystallized Fe77Ni5.5Co5.5Zr7B4Cu Melt Spun Ribbons for Enhanced Structural Stability and Magnetic Softness

Valickamalayil Thomas, Som 30 September 2021 (has links)
No description available.
318

Сравнительный анализ картографических приложений и направления их использования в туристской индустрии : магистерская диссертация / Comparative analysis of cartographic applications and their use in the tourism industry

Афанасьев, И. А., Afanasiev, I. A. January 2018 (has links)
In the graduate qualifying work of the undergraduate, the current state of cartographic applications, the features of the functionality of the main programs, the applicability in the current practice of tourist services are considered. / В выпускной квалификационной работе магистранта рассматривается современное состояние картографических приложений, особенности функционала основных программ, применимость в текущей практики туристского обслуживания.
319

Forensic Insights: Analyzing and Visualizing Fitbit Cloud Data

Poorvi Umesh Hegde (17635896) 15 December 2023 (has links)
<p dir="ltr">Wearable devices are ubiquitous. There are over 1.1 billion wearable devices in the<br>market today[1]. The market is projected to grow at a rate of 14.6% annually till 2030[2].<br>These devices collect and store a large amount of data[3]. A major amount of this collected<br>data is stored in the cloud. For many years now, law enforcement organizations have been<br>continuously encountering cases that involve a wearable device in some capacity. There have<br>also been examples of how these wearable devices have helped in crime investigations and<br>insurance fraud investigations [4],[5],[6],[7],[8]. The article [4] performs an analysis of 5 case<br>studies and 57 news articles and shows how the framing of wearables in the context of the<br>crimes helped those cases. However, there still isn’t enough awareness and understanding<br>among law enforcement agencies on leveraging the data collected by these devices to solve<br>crimes. Many of the fitness trackers and smartwatches in the market today have more or<br>less similar functionalities of tracking data on an individual’s fitness-related activities, heart<br>rate, sleep, temperature, and stress [9]. One of the major players in the smartwatch space is<br>Fitbit. Fitbit synchronizes the data that it collects, directly to Fitbit Cloud [10]. It provides<br>an Android app and a web dashboard for users to access some of these data, but not all.<br>Application developers on the other hand can make use of Fitbit APIs to use user’s data.<br>These APIs can also be leveraged by law enforcement agencies to aid in digital forensic<br>investigations. There have been previous studies where they have developed tools that make<br>use of Fitbit Web APIs [11],[12], [13] but for various other purposes, not for forensic research.<br>There are a few studies on the topic of using fitness tracker data for forensic investigations<br>[14],[15]. But very few have used the Fitbit developer APIs [16]. Thus this study aims to<br>propose a proof-of-concept platform that can be leveraged by law enforcement agencies to<br>access and view the data stored on the Fitbit cloud on a person of interest. The results<br>display data on 12 categories - activity, body, sleep, breathing, devices, friends, nutrition,<br>heart rate variability, ECG, temperature, oxygen level, and cardio data, in a tabular format<br>that is easily viewable and searchable. This data can be further utilized for various analyses.<br>The tool developed is Open Source and well documented, thus anyone can reproduce the<br>process.<br>12<br></p>
320

Evaluating the Performance of Android and Web Applications for the 2048 Game : Using Firebase

Kokatam, Om Tejaswini, Pulimi, Pavithra Reddy January 2023 (has links)
Background: In the rapidly evolving field of game development, the demand for diverse platform support is increasingly significant. This thesis explores the creation of a Unity-based game compatible with both Web and Android platforms, addressing the rising need for cross-platform gaming experiences. The project aims for a comprehensive and adaptable methodology.Objectives: Our thesis aims to conduct a thorough performance comparison between an Android gaming application and a gaming web application, both featuring a similar user interface, using Firebase metrics. The evaluation will be performed on two designated devices, D1 and D2, measuring CPU load, network load, and memory usage. The research aims to provide insights into the performance variations of these applications while playing the 2048 game on specific devices. This investigation contributes to a deeper understanding of how different platforms and device specifications impact gaming experiences in terms of computational load and network responsiveness.Method: In our thesis, we optimize Unity as the main game engine, allowing for easy-platform-to-platform code exchange. To gather user information and performance metrics, it incorporates Firebase SDK(Software Development Kit), which includes Firebase Analytics and Firebase Performance SDK. Using Android Studio and VisualStudio Code as the main development tool and Firebase Hosting for web deployment, the project is exported for both Android and the Web. The test was conducted on two devices (D1 and D2) while playing the game 2048 for 30 seconds.Results: The result of our analysis shows the comparison of metrics for CPU, memory, and network load of 2048 games for web and Android applications for two devices d1 and d2. The Web D2 consumes more memory than Android D2. Web and Android D1 use similar amounts of memory. Coming to CPU load D2 consumes more than D1 for both Web and Android. The network for web D2 has more network load than web D1 and both Android D1, and D2 have similar network loadConclusions: In conclusion, the Android applications will provide a more streamlined user experience, notably in terms of CPU and network efficiency when compared to the Web app While Android D1 and Web D1 have comparable memory requirements, Web tasks, particularly on Web D2, and Android tasks, especially on AndroidD2, both need significant memory utilization.Keywords: Web application, Android application, Firebase, Unity, Test lab, Performance

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