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1
Labaeye, Adrien, e Adrien Labaeye. "The Role of Digital Commons in a Socio-Ecological Transition of Cities". Doctoral thesis, Humboldt-Universität zu Berlin, 2020. http://dx.doi.org/10.18452/21899.
Testo completoAbstract (sommario):
Diese Doktorarbeit untersucht die Rolle die Bürgerinitiativen an der Schnittstelle zwischen städtischen und digitalen Räumen spielen können.
Sie folgt drei Untersuchungslinien. Zunächst wird untersucht, wie die Forschung zu aus Graswurzelbewegungen entstandenen Alternativen für nachhaltige und gerechte Städte von einer besonderen Art des digitalen Gemeinguts profitieren kann: des kollaborativen kartografischen Mappings. Zweitens wird die Verflechtung von digitalen Gemeingütern mit physischen städtischen Gemeingütern untersucht, um zu verstehen, wie die gemeinsame Nutzung zu transformativen Effekten in der Stadt führen kann. Drittens wird versucht, das transformative Potenzial der Gemeingüter als ein Narrativ des Wandels für nachhaltige und gerechte Städte im digitalen Zeitalter zu bewerten.
Methodisch stützt die Arbeit sich auf Aktionsforschung, primäre Einzelfallstudien sowie eine vergleichende Fallstudienanalyse.
Ein vorläufiges Ergebnis ist die Identifizierung von basisgeleiteten kollaborativen Mappings – hier betrachtet als Initiativen des gemeinsamen Wirkens (Commoning) – als wertvolle Wissensquellen zu alternativer Stadtökonomik.
Die Hauptergebnisse zwingen uns dazu, das klassisch-naturalistische Verständnis des Gemeinguts in Frage zu stellen, welches dazu neigt, ein Gemeingut als gegeben zu betrachten. Stattdessen wäre es für die Forschung von Vorteil, einen gemeinsamen Prozess zu untersuchen: die Rückgewinnung, Schaffung und Nutzung gemeinsamer städtischer Ressourcen. Über die künstliche Trennung zwischen materiellen und immateriellen Facetten des Gemeingutes hinaus lässt sich (urbanes) Commoning am besten als eine relationale Praxis in Pflege und Aufbau von Partnerschaften für die Reproduktion von Leben in der Stadt definieren. Dies ist umso wichtiger, dass digitale Werkzeuge zwar neue Potenziale eröffnen können, aber im Gegensatz zu anderen Diskursen (Sharing Economy, Smart Cities) für das Commoning der Stadt nicht von zentraler Bedeutung sind.This doctoral research investigates the role that citizen-driven initiatives can play at the intersection of the urban and digital spaces. It follows three lines of investigation. First, it explores how research about grassroots alternatives for sustainable and just cities may benefit from a particular type of digital commons: collaborative cartographic mappings. Second, it investigates the intertwin of digital commons with physical urban commons to understand how commoning may lead to transformative impacts in the city. Third, it seeks to evaluate the transformative potential of the commons as a narrative of change for sustainable and just cities in the digital age. Methodologically, it relies on action research, primary individual case-studies as well as a comparative case-study analysis. A preliminary result is the identification of grassroots-led collaborative mappings – seen as commoning initiatives – as valuable sources of knowledge about alternative urban economies. Main results compel us to question the classical/naturalist understanding of the commons that tends to consider it as a given. Instead, research would benefit to investigate a commoning process: the reclaiming creation, and use of shared urban resources. And, further, transcending artificial divides between the tangible and intangible facets of the commons, (urban) commoning is best defined as a relational practice of caring for and building partnerships for the reproduction of life in the city. This is all the more important that another significant result of the present work is that, while they may open new potential, digital tools are not central to commoning the city, in contrast other discourses (Sharing Economy, Smart Cities). Epistemologically, the author recommends aligning the effort of researching urban commoning to the Diverse/Community Economies research agenda which calls for performative studies of more-than-human urban commoning-communities.
2
Mouttaki, Adil. "Rabat ville intelligente : entre ambitions et réalisations". Electronic Thesis or Diss., Université Côte d'Azur, 2024. http://www.theses.fr/2024COAZ2017.
Testo completoAbstract (sommario):
Les villes se développent rapidement. En conséquence, elles s'exposent à des pressions sociales et urbaines croissantes, notamment en termes d'accès aux services administratifs, de santé, de logement et d'emploi. Pour relever ces défis, elles optent pour des approches de gouvernance basées sur les technologies numériques. Cependant, l'enjeu n'est pas seulement d'acquérir les innovations numériques, mais aussi de garantir la rationalité des décisions prises et la participation juste et effective de toutes les parties prenantes, notamment les habitants des quartiers défavorisés. C'est dans ce contexte de mutation numérique que Rabat, capitale du Royaume du Maroc, vise à rendre son dispositif de ville intelligente réactif aux préoccupations contemporaines. Elle vise à tirer parti de ses potentialités historiques, géographiques, administratives, et culturelles distinctives. En 2023, Rabat occupait le cinquième rang parmi les villes arabes au classement de l'Institut suisse (IMD), dépassant ainsi sa concurrente voisine, Casablanca. Cependant, la même étude a montré que Rabat a un bilan mitigé en matière d'usage des technologies numériques, en particulier dans les domaines d'accès aux services de santé, d'enseignement, de loisir, et aux financement destinés aux entreprises. Ce constat constitue un des éléments phares qui nous a guidés dans le choix du sujet de cette thèse. Ainsi, notre problématique de recherche s'articule autour du questionnement suivant : Peut-on qualifier le projet de « Rabat : ville intelligente » de projet démocratique, équitable et participatif ? Sans remettre en cause la crédibilité de ce projet, la question de l'acceptabilité sociale, notamment de ceux qui devraient, théoriquement, en être les premiers bénéficiaires nous interpelle à plusieurs égards. Cela nous ramène à la question initialement soulevée par Vincent Meyer en 2017 concernant les mesures prises pour que la transition digitale ne devienne elle-même un facteur supplémentaire d'inégalités. Pour approcher ce sujet, nous avons fait appel aux méthodes et techniques déployées à la fois par les géographes et par les chercheurs en sciences de l'information et de la communication. S'agissant d'une thèse en cotutelle internationale à l'interface des deux disciplines, le matériel mobilisé s'appuie à la fois sur l'exploitation d'une littérature riche pour le cadrage théorique et sur des études empiriques de terrain pour la compréhension du processus de fabrique du projet « Rabat-ville intelligente » et de son fonctionnement. Cette recherche est organisée en 7 chapitres intéressant 3 niveaux : Le premier se focalise sur le cadre théorique, la problématique de recherche, les hypothèses et la méthodologie utilisée. Le deuxième aborde les notions d'intelligence humaine et du solutionnisme numérique, avant d'enchainer (de 3 à 5) sur le contexte géographique, historique et sociodémographique de la ville de Rabat, puis sur les enjeux de gouvernance urbaine. En dernier lieu, les chapitres 6 et 7 présentent les enseignements tirés de cette recherche, en essayant de mettre en évidence les forces et les insuffisances enregistrées en matière de participation, d'acceptabilité sociale, de communication et de financementCities are growing rapidly. As a result, they are exposed to increasing social and urban pressures, particularly in terms of access to administrative, health, housing and employment services. To meet these challenges, they are opting for governance approaches based on digital technologies. But the challenge is not only to appropriate digital innovations, but also to guarantee the rationality of the decisions taken and the fair and effective participation of all stakeholders, particularly residents of disadvantaged neighborhoods. It is in this context of digital transformation that Rabat, capital of the Kingdom of Morocco, aims to make its smart city system responsive to contemporary concerns. It aims to capitalize on its distinctive historical, geographical, administrative and cultural potential. In 2023, Rabat ranked fifth among Arab cities in the Swiss Institute (IMD) ranking, surpassing its neighboring competitor, Casablanca. However, the same study showed that Rabat has a mixed record in the use of digital technologies, particularly in the areas of access to health services, education, leisure and business financing. This observation constitutes one of the key elements which guided us in the choice of the subject of this thesis. Thus, our research problem revolves around the following question: Can we qualify the “Rabat: smart city” project as a democratic, equitable and participatory project? Without calling into question the credibility of this project, the question of social acceptability, particularly of those who should, in theory, be the first beneficiaries, challenges us in several respects. This brings us back to the question initially asked by Vincent Meyer in 2017 concerning the measures taken to ensure that the digital transition itself does not become an additional factor of inequality. To address this subject, we called on the methods and techniques deployed both by geographers and by researchers in information and communication sciences. As this is a joint international thesis at the interface of the two disciplines, the material used is based both on the exploitation of a rich literature for theoretical support and on empirical field studies for understanding the manufacturing process of the “Rabat-intelligent city” project and its operation. This research is organized into 7 chapters comprising 3 levels: The first concerns the theoretical framework, the research problem, the hypotheses and the methodology used. The second addresses the notions of human intelligence and digital solutionism, before addressing the geographical, historical and socio-demographic context of the city of Rabat, then the issues of urban governance. Finally, Chapters 6 and 7 present the lessons learned from this research, trying to highlight the strengths and gaps recorded in terms of participation, social acceptability, communication and financing
3
Onumah, Chido. "Digital migration: A comparative study of the digital transition of the print media in Nigeria and South Africa". Doctoral thesis, Universitat Autònoma de Barcelona, 2019. http://hdl.handle.net/10803/667970.
Testo completoAbstract (sommario):
Internet está cambiando la forma en que las personas en África y en todo el mundo se comunican. También ha impactado enormemente la forma en que operan los medios de comunicación. En muchos países, las personas dependen cada vez menos de los medios tradicionales (periódicos, revistas, radio, televisión) para la información y la comunicación. Las organizaciones tradicionales de periódicos, al igual que los periodistas en África y en todo el mundo, están aprendiendo a adaptarse y aceptar la nueva realidad tecnológica. Si bien la revolución de Internet en África sigue evolucionando, ha creado oportunidades y desafíos que están redefiniendo la forma en que los periódicos, los periodistas y la audiencia acceden y difunden información.
Esta investigación examina el impacto de la transición digital en los periodistas de los periódicos de África que utilizan Nigeria y Sudáfrica como estudios de caso. Revisa el efecto y la creciente importancia de Internet, los periódicos en línea y las redes sociales, en la configuración del futuro del periodismo impreso, el negocio de los periódicos y la interacción de la audiencia en ambos países. La investigación sostiene que los nuevos medios están redefiniendo el periodismo en Nigeria y Sudáfrica. No solo ha creado nuevos tipos de periodistas y público que ya no son receptores pasivos de las noticias, sino que también ha lanzado nuevos modelos de negocios para la industria de las noticias que se enfrentan a la saturación severa.
La investigación concluye que este cambio ha sido claro y lejano. Alcanzar implicaciones para los periodistas, así como para los periódicos y su audiencia; que si los periodistas en Nigeria y Sudáfrica son conscientes de la importancia y las interrupciones causadas por la nueva fase en la evolución de los medios de comunicación, todavía falta una fórmula coherente para enfrentar los desafíos y hay muchos factores más allá del alcance de los periodistas que están configurando su reacción.The Internet is changing how people in Africa and around the world communicate. It has also greatly impacted the way the media operates. In many countries, people are depending less and less on the traditional media (newspapers, magazines, radio, television) for information and communication. Traditional newspaper organisations as we l as journalists in Africa and around the world are learning to adapt and come to terms with the new technological reality. While the Internet revolution in Africa is still evolving, it has created opportunities and challenges that are redefining the way newspapers, journalists and the audience access and disseminate information. This research examines the impact of the digital transition on newspaper journalists in Africa using Nigeria and South Africa as case studies. It reviews the effect and growing importance of the Internet, online newspapers and social media, in shaping the future of print journalism, the newspaper business and audience interaction in both countries. The research argues hat new media is redefining journalism in Nigeria and South Africa. It has not only created new kinds of journalists and audience who are no longer passive receptors of news, it has thrown up new business models for the news industry facing severe glut. The research concludes that this change has clear and far - Reaching implications for journalists as well as newspapers and their audience; that if journalists in Nigeria and South Africa are aware of the importance and disruptions wrought by the new phase in the evolution of the media, there is still missing a coherent formula in dealing with the challenges and that there are a lot of factors some beyond the purview of journalists that are shaping their reaction.
4
Donevska-Todorova, Ana. "Utilizing Technology to Facilitate the Transition from Secondary- to Tertiary Level Linear Algebra". Doctoral thesis, Humboldt-Universität zu Berlin, 2017. http://dx.doi.org/10.18452/18561.
Testo completoAbstract (sommario):
Es ist eine weit verbreitete Wahrnehmung, dass der Übergang zwischen der Mathematik der gymnasialen Oberstufe und der Mathematik an der Universität für Studierende problematisch sein kann. Besondere Verständnisschwierigkeiten in Bereich der lineare Algebra (lA) bereiten den Studierenden die verschiedenen Herangehensweisen auf diesen beiden Ebenen. Dies lässt sich auf die strukturell-axiomatischer Herangehensweisen an die lA an der Universität, im Gegensatz zu ihrer arithmetisch-geometrischen Darstellung in der Schule, zurückführen. Dies bedingt ebenfalls Unterschiede im prozeduralen und konzeptuellen Verständnis. Ziel dieser Arbeit ist es, zu untersuchen, wie Schüler konzeptuelles Verständnis, Bezug nehmend auf die Theorien von concept definition/image in Verbindung mit multiplen Modi der Beschreibung und des Denkens von Konzepten wie Bilinearität z.B. Skalarprodukt und Multilinearität z.B. Determinanten gewinnen können. Um dies zu erreichen wurde eine substanzielle Lehr-Lernumgebung unter Verwendung einer dynamischen Geometriesoftware (DGS) entwickelt. Die Lerneinheit wurde an einem Berliner Gymnasium eingesetzt und dabei ein vollständiger design-based research Zyklus durchlaufen und eine multiple-level Datenanalyse durchgeführt. Die Ergebnisse der Untersuchung zeigen nicht nur, dass eine Erweiterung der Vorstellungen der Schüler, eine Entwicklung multipler Denkmodi und ein Gewinn tieferen konzeptuellen Verständnisses in der lA erfolgreich vermittelt werden können, sondern geben auch Einblicke in ein mögliches theoretisches Modell, mit dessen Hilfe sich diese Prozesse weiter untersuchen lassen. Weiterhin werden die interaktiven Lehr-Lernmaterialien für die weitere Verwendung im Rahmen von Lehre und Forschung zur Verfügung gestellt. Es öffnen sich neue Forschungsfragen hinsichtlich lokalen Axiomatisierens in der lA der gymnasialen Oberstufe, welches auf einer Integration geometrischer, algebraischer und axiomatischer Denkmodi, unterstützt durch DGS, basieren könnte.A common perception among researchers in mathematics education is that the transition between secondary- and tertiary level of mathematics may be problematic for the students. In particular, the exact and abstract nature of the theory of Linear algebra versus its arithmetic-geometric presentation in school appears to be difficult for the novice students. The application of properties for defining concepts at university in contrast to their usage for describing concepts in school points out a possible occurrence of obstacles for learning and discrepancies in procedural and conceptual understanding. The aim of this study is to examine how could upper-high school students develop a conceptual understanding based on concept definition and concept image in connection to multiple modes of description and thinking about concepts such as bi-linearity exemplified by the dot product of vectors and multi-linearity exemplified by determinants. In order to achieve this, I have created a specific teaching/ learning sequence in a dynamic geometry environment (DGE), then implemented it and evaluated it in a high school in Berlin, following a complete cycle of design-based research and conducting a multiple-level data analysis. The findings of the study show not only that widening students' concept images, developing multiple modes of thinking and gaining deeper conceptual understanding can successfully be mediated by dynamic geometries, but also give insights into an eventual theoretical model of how can they be further examined. Moreover, the study promotes authorized open-source interactive teaching/ learning materials for further sustainable practice and research. It opens new research questions about revisiting axiomatic approaches on local levels in upper high-school Linear algebra which may base on the integration of all three modes of description and thinking geometric, algebraic and abstract possibly facilitated by DGE.
Честа перцепција кај многумина истражувачи во областа на математичкото образование е дека транзицијата помеѓу средното и високото образование по математика може да биде проблематична за студентите. Егзакноста и апстрактноста на теоријата по Линеарна алгебра наспроти нејзината аритметичко-геометриска презентација во средното гимназиско образование се покажува како особено тешка за студентите. Примена на својствата на математичките поими за нивно дефинирање на универзитетско ниво наспроти нивното употреба за опишување на претходно дефинирани поими на училишно ниво, укажува на можна појава на тешкотии при нивното изучување и несовпаѓање на процедуралното и концептуалното разбирање на истите. Целта на оваа студија е да истражи како средношколците би можеле да развијат концептуално разбирање на поимите врз основа на концепт дефиниција и концепт слика во врска со мулти-моди на мислење, конкретно за поими како билинеарност, пр. скаларен производ на вектори, и мултилинеарност, пр. детерминанти. За да ја постигнам оваа цел, креирав наставна содржина поддржана од еден динамичен геометриски систем (ДГС) и следејќи целосен циклус на т.н. design-based research и спрoведувајќи мулти-анализа на податоци, истата ја имплементирав и евалуирав во едно средно училиште во Берлин. Резултатите од студијата укажуваат не само на фактот дека проширувањето на концепт сликите на учениците, развојот на мулти-моди на мислење и стекнувањето на длабоко концептуално разбирање на поимите можат да бидат успешно посредувани од ДГС туку овозможија и увид во еден теоретски модел за тоа коко тие можат понатаму да се истражуваат. Уште повеќе, студијата промовира авторизирани open-source интерактивни материјали за предавање и учење на содржините кои може да служат за понатамошни одржливи истражувања и развој. Студијата отвора нови истражувачки прашања за средношколската Линеарна алгебра која може да се базира на интеграција на сите три моди на мислење, геометриски, алгебарски и апстрактен, поддржан од ДГС.
5
Eilermann, Frank. "Beiträge zum Aufbau eines forstlichen Geographischen Informationssystems unter besonderer Berücksichtigung der Integration der digitalen Photogrammetrie - dargestellt am Beispiel der Entwicklung von Entscheidungshilfen für einen ökologisch begründeten Waldumbau". Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2003. http://nbn-resolving.de/urn:nbn:de:swb:14-1040304585218-28204.
Testo completoAbstract (sommario):
Für einen ökologischen Waldumbau sind naturwissenschaftliche und ökonomische Grundlagen erforderlich, um die Entscheidungsträger unterstützen. Die Problematik des Waldumbaus bei heterogenen Bedingungen des Osterzgebirges setzt ein flächenbezogenes Informationsmanagement voraus. Durch Aufbau eines forstökologischen Informationssystems werden naturwissenschaftliche und forstbetriebliche Grunddaten auf räumliche Einheiten übertragen und damit Entscheidungshilfen. Zur Erzielung standortsgerechter, stabiler und leistungsfähiger Mischbestände müssen unter Berücksichtigung waldbaulicher und ertragskundlicher Verhältnisse waldbauliche Strategien aufgezeigt und deren mittelfristige Umsetzung geplant werden. Zur Gestaltung des Planungskonzepts werden ausgehend vom IST-Zustand geeignete Maßnahmen zum Erreichen eines SOLL-Zustands aufgezeigt. Instrumentelle Basis bildet ein Forstökologisches Informationssystem, dessen GIS-Funktionalitäten flächenbezogene Entscheidungshilfen durch vielschichtige Datenanalyse ermöglichen. Die Auswertung von analogen und digitalen Luftbildern mit verschiedenen Stichprobenverfahren werden kombiniert. Mit einem Kalkulationsprogramm werden Bewirtschaftungsmaßnahmen hinsichtlich zu erwartender Kosten und Erlöse charakterisiert. Durch das Informationssystems lassen sich die naturwissenschaftlichen und forstbetrieblichen Grunddaten auf räumliche Einheiten übertragen. Planungsvorschläge zum Waldumbau in Form von Entscheidungshilfen stehen zur Verfügung. Die Integration auf Intensivmeßflächen gewonnener Daten ins Informationssystem und Übertragung auf flächige Bezugseinheiten gewährleisten die Beachtung vielfältiger Ursache-Wirkungsbeziehungen zur forstbetrieblichen Planung. Für die verschiedenen Höhenstufen werden spezifische waldbauliche Behandlungsvarianten durch Entscheidungsmodelle abgebildet, die eine flächenbezogene Umsetzung ermöglichen.
6
Eilermann, Frank. "Beiträge zum Aufbau eines forstlichen Geographischen Informationssystems unter besonderer Berücksichtigung der Integration der digitalen Photogrammetrie - dargestellt am Beispiel der Entwicklung von Entscheidungshilfen für einen ökologisch begründeten Waldumbau". Doctoral thesis, Technische Universität Dresden, 2002. https://tud.qucosa.de/id/qucosa%3A23964.
Testo completoAbstract (sommario):
Für einen ökologischen Waldumbau sind naturwissenschaftliche und ökonomische Grundlagen erforderlich, um die Entscheidungsträger unterstützen. Die Problematik des Waldumbaus bei heterogenen Bedingungen des Osterzgebirges setzt ein flächenbezogenes Informationsmanagement voraus. Durch Aufbau eines forstökologischen Informationssystems werden naturwissenschaftliche und forstbetriebliche Grunddaten auf räumliche Einheiten übertragen und damit Entscheidungshilfen. Zur Erzielung standortsgerechter, stabiler und leistungsfähiger Mischbestände müssen unter Berücksichtigung waldbaulicher und ertragskundlicher Verhältnisse waldbauliche Strategien aufgezeigt und deren mittelfristige Umsetzung geplant werden. Zur Gestaltung des Planungskonzepts werden ausgehend vom IST-Zustand geeignete Maßnahmen zum Erreichen eines SOLL-Zustands aufgezeigt. Instrumentelle Basis bildet ein Forstökologisches Informationssystem, dessen GIS-Funktionalitäten flächenbezogene Entscheidungshilfen durch vielschichtige Datenanalyse ermöglichen. Die Auswertung von analogen und digitalen Luftbildern mit verschiedenen Stichprobenverfahren werden kombiniert. Mit einem Kalkulationsprogramm werden Bewirtschaftungsmaßnahmen hinsichtlich zu erwartender Kosten und Erlöse charakterisiert. Durch das Informationssystems lassen sich die naturwissenschaftlichen und forstbetrieblichen Grunddaten auf räumliche Einheiten übertragen. Planungsvorschläge zum Waldumbau in Form von Entscheidungshilfen stehen zur Verfügung. Die Integration auf Intensivmeßflächen gewonnener Daten ins Informationssystem und Übertragung auf flächige Bezugseinheiten gewährleisten die Beachtung vielfältiger Ursache-Wirkungsbeziehungen zur forstbetrieblichen Planung. Für die verschiedenen Höhenstufen werden spezifische waldbauliche Behandlungsvarianten durch Entscheidungsmodelle abgebildet, die eine flächenbezogene Umsetzung ermöglichen.
7
Taylor, Gregory. "Canadian broadcasting regulation and the digital television transition". Thesis, McGill University, 2010. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=86874.
Testo completoAbstract (sommario):
This thesis examines the evolution of Canadian broadcasting regulation since the adoption of the 1991 Broadcasting Act with a specific focus on the digital television transition. For Canada, this technological shift exemplifies many of the greater changes in public policy in the last two decades: a faith in market mechanisms, light-touch regulation, co-regulatory approaches, and the powerful influence of new technologies. This dissertation will address the following central question: does the policy surrounding the transition to digital television broadcasting pose a challenge to traditional concerns of the role of broadcasting in Canadian democracy? Utilizing the approach of institutional political economy, this study is informed by primary government and industry documents and interviews conducted with key actors within Canadian broadcasting. This dissertation offers a unique contribution to knowledge in three areas: establishing clear parameters for the differences between policy and regulations in Canadian broadcasting; offering the first comprehensive study of the Canadian digital television transition; and analyzing the growth and impact of self and co-regulation in Canadian broadcasting policy. The results of this study speak to the power dynamics amid the range of actors involved in the Canadian policy process, the influence of new technologies, and the greater prevailing policy directions in broadcasting since the 1991 Broadcasting Act was adopted.Cette thèse examine l'évolution de la réglementation canadienne de la radiodiffusion depuis l'adoption de la Loi sur la radiodiffusion (fédérale) en 1991 en se concentrant plus particulièrement sur la transition à la télévision numérique. Pour le Canada, ce changement de cap est révélateur des grandes modifications que les politiques publiques ont connues dans les deux dernières décennies : une foi dans les mécanismes de marché, une réglementation en pointillé, des approches axées sur la coréglementation et la puissante influence des nouvelles technologies. La question centrale étudiée dans ce mémoire est la suivante : la politique sous-jacente à la transition à la télédiffusion numérique constitue-t-elle un défi en regard des préoccupations traditionnelles afférentes au rôle de la radiodiffusion dans la démocratie canadienne ? Adoptant une approche de économie politique institutionnelle, cette étude se fonde sur l'étude de documents gouvernementaux ou provenant des entreprises privées oeuvrant dans le secteur ainsi que sur des entretiens effectués avec certains acteurs clés de la radiodiffusion canadienne. Cette thèse offre une contribution unique au savoir quant à trois aspects : établir des paramètres clairs permettant de différencier les politiques de la réglementation dans le domaine de la radiodiffusion ; offrir la première étude détaillée sur la transition canadienne à la télévision numérique, et présenter une analyse du développement et de l'impact de l'autoréglementation et de la coréglementation dans les politiques canadiennes relatives à la radiodiffusion. Les conclusions de cette étude mettent en lumière les dynamiques de pouvoir existant entre les divers acteurs engagés dans le processus d'élaboration et d'adoption des politiques canadiennes, l'influence des nouvelles technologies et les grandes orientations politiques ayant prévalu dans le domaine de la radiodiffusion depuis l'adoption d
8
Søby, Jesper. "Digitalt Tv : en analyse af Tv-udbydernes innovative, konkurrencemæssige udfordringer og muligheder ved overgang til digitalt betalings Tv = Digital TV : an analysis of TV providers' innovative, competitive challenges and opportunities for transition to digital pay TV /". Aarhus : Institut for Økonomi, Aarhus Universitet, 2009. http://mit.econ.au.dk/Library/Specialer/2009/20012449.pdf.
Testo completo
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Smith, Catherine E. "Glass Cockpit Transition Training in Collegiate Aviation: Analog to Digital". Bowling Green, Ohio : Bowling Green State University, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=bgsu1225479328.
Testo completo
10
Marques, Maria Luiza Dias de Almeida. "A transição do modo de produção analógico para o digital nas produtoras de animação publicitária: o impacto da tecnologia no cinema de animação". Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/27/27161/tde-20012015-150450/.
Testo completoAbstract (sommario):
Este estudo tem como propósito pesquisar como as produtoras de animação publicitária em São Paulo absorveram gradativamente a tecnologia digital a partir de meados dos anos 1980 até os anos 1990, observando seu funcionamento antes, durante e após a implementação mais efetiva dos novos recursos, identificando os fatos e dados que apontam para o impacto no processo criativo em todas as suas etapas. A partir de uma revisão bibliográfica, apresenta-se o modelo de produção analógico em animação, permitindo-se conjecturar a respeito do ambiente sócio-cultural que propiciou o surgimento dos estúdios de animação que imprimiram sua marca na história da publicidade brasileira. Dentro de uma perspectiva de pesquisa qualitativa fundamentada na história oral, procura-se, por meio de entrevistas com os produtores, compreender o trajeto da realização de um filme de animação, tanto da era analógica como da era digital. Buscou-se, com a coleta de depoimentos, criar evidências para a pesquisa, esperando contribuir assim para o resgate histórico de um momento muito fértil em nossa animação, e de um segmento audiovisual tradicionalmente pouco contemplado nas discussões acadêmicas. Como resultado, obteve-se uma reflexão sobre a evolução do processo criativo, que se mostrou dar-se não apenas em função da tecnologia, mas também em função de um conjunto de elementos sócio-econômico-culturais que influenciam na fruição através dos tempos e determinam diretrizes de produtividade para o audiovisualThis study aims to research how animation advertising companies have gradually absorbed digital technology in São Paulo from the mid-1980s until the 1990s. By observing their functioning before, during and after the effective implementation of new resources, and, by this investigative approach, the study identifies the facts and data which point toward the impact on the creative process at all its stages. In the review of literature, the analog production model of animation is presented, which allows for conjecturing as to what socialcultural environment has enabled the emergence of animation studios which have left their mark in the history of Brazilian advertising. From a qualitative research perspective grounded on Oral History, it used interviews with producers, to document and gain a clearer understanding of the making of an animation film, in both in the analog as well as in the digital era. By the collecting accounts, research evidence hopes to contribute to a historical review of a particularly fertile moment in the history of Brazilian animation. As well this study documents an audiovisual segment that traditionally is not addressed in academic discussions. As a result, a reflection of the development of the creative process was obtained, not only because of technology used but also by virtue of a set of social-economic-cultural elements which have influenced the fruition throughout times and determined productivity guidelines for the audiovisual.
11
Taylor-Phillips, Sian. "The presentation of prior mammograms in the transition to digital mammography". Thesis, Loughborough University, 2009. https://dspace.lboro.ac.uk/2134/33882.
Testo completoAbstract (sommario):
The NHS Breast Screening Programme (NHSBSP) is changing from using film screen to digital mammography. The aim of this research was to determine the optimum display medium for the prior mammograms (from the previous screening round) for the transition period. Three options for the display of the prior mammograms were investigated: film display adjacent to the digital workstation, digitised display on the digital workstation, or not displaying them at all.
12
Harsha, Man Maharjan. "Digital Transitions and the Making of Online Newspapers in Nepal". Kyoto University, 2019. http://hdl.handle.net/2433/242769.
Testo completoAbstract (sommario):
Kyoto University (京都大学)0048
新制・課程博士
博士(地域研究)
甲第21906号
地博第252号
新制||地||93(附属図書館)
京都大学大学院アジア・アフリカ地域研究研究科グローバル地域研究専攻
(主査)教授 藤倉 達郎, 准教授 D'SOUZA Rohan Ignatious, 准教授 中村 沙絵
学位規則第4条第1項該当
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Bull, Justin G. "The paper to digital media transition : defining sustainability in media supply chains". Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/51245.
Testo completoAbstract (sommario):
The phrase, “please consider the environment before printing this email” has entered the common vernacular. It suggests that when I consider the environment, paper media is of particular concern, and by inference, digital media is not. This thesis tackles the legitimacy of this claim by examining how media sustainability operates from three critical perspectives: industry, consumers, and academia. To measure the paper industry’s perspective, a series of interviews with business executives along a supply chain were conducted. I found that collaboration between supply chain actors is a prerequisite for improving environmental performance. To gain insight on the consumer’s perspective, I surveyed 1,400 individuals in North America, investigating media habits and environmental values. I found that consumers are shifting from paper to digital media, but that environmental values have no influence over this shift. This suggests that consumers could be detached from the environmental impacts of their media choices. Finally, the academic perspective was analyzed through a comprehensive review of life cycle assessment (LCA) research that compares paper and digital media from an environmental perspective. The studies found that digital media is almost always preferable to paper, requiring less energy and materials. However, they did not assess the assumptions required in order to compare such different products. More worryingly, the context of media consumption – the industrial systems that produce paper and digital products – was never taken into account. I conclude that since a significant media shift is underway new methods are required to consider sustainability. The new methods should be anchored in two concepts that could improve considerations of the environmental performance of industrial systems. First, industrial ecology, the idea that industry might mimic nature, can strengthen initial assessments of environmental performance. Second, capability maturity models can assist in gauging the ability of industrial systems to manage and improve environmental performance over time.Forestry, Faculty of
Graduate
14
Hedricks, Michael J., Jeff Sussex e Ronald G. Streich. "TRANSITION FROM ANALOG TO DIGITAL RECORDERS FOR TELEMETRY AT THE WESTERN RANGE". International Foundation for Telemetering, 2006. http://hdl.handle.net/10150/604138.
Testo completoAbstract (sommario):
ITC/USA 2006 Conference Proceedings / The Forty-Second Annual International Telemetering Conference and Technical Exhibition / October 23-26, 2006 / Town and Country Resort & Convention Center, San Diego, CaliforniaThe transition of PCM recording from analog to digital recorders was completed at many test ranges more than a decade ago as marked by delivery of data on S-VHS tape, CD-ROM, DVD, ZIP disc, JAZ disc, 8mm tape and DLT tape for low rate data and D-1 cassettes for high rate data. Data then quickly began distribution via the internet and other networks. Analog recorders have remained a necessary legacy for the long transition to convert from analog to digital (PCM) data transmission from the test vehicles. However, the new digital recorder capabilities have removed this requirement to convert the transmissions from the test vehicle. Analog signal and predetection recording on digital recorders has been successfully demonstrated at costs below the existing analog recorders. Application of new techniques in a methodical transition program to the new digital recorders has proven the many benefits of recording wider bandwidths with excellent repeatability. Repeatability issues are primarily in the very low error sources of the processing system because the major analog error sources of the analog tape recorders, analog time code readers, analog demodulators, etc have been greatly reduced. This paper provides test results of recording higher signal rates and bandwidths of the new programs and describes the techniques and implementation through procedures of the Western Range transition from analog to digital recorders. Surprising results show predetection and analog signal recording costs are nearly the same as PCM recording costs due to the price of deliverable media with respect to mission recording requirements.
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Faltesek, Daniel Conover. "The structural transformation of the televisual public sphere". Diss., University of Iowa, 2011. https://ir.uiowa.edu/etd/2697.
Testo completoAbstract (sommario):
This dissertation poses that the digital transition is best understood as simultaneously a technological and cultural phenomena. As a physical change in the means of distribution, transmission, and reception of media content, the digital transition is an important factor in changing technological, aesthetic, and legal norms. As a cultural form, the digital is positioned as a moderator between continuity and discontinuity. Through a reading strategy inspired by Walter Benjamin this dissertation reads the physical and cultural implications of the digital transition in television in the United States through political categories. The chapters are case studies in the adoption of digital televisions for home use, digital television production technologies, digital transmission technologies, and digital distribution systems. Each case study examines the tenuous production of publics in the context of the dialectical pressures of the digital. By taking this approach I intend to contribute to the rhetorical dimension of television studies, the digital turn in rhetorical and public sphere studies, and the legal and aesthetic dimensions of production studies. The dialectical approach to the digital allows the study of television to theorize the trajectory of emerging media and the political implications of that movement.
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Soto, Daniel. "Techniques to accelerate the transition to a new generation of terrestrial digital TV". Doctoral thesis, Universitat Pompeu Fabra, 2021. http://hdl.handle.net/10803/671364.
Testo completoAbstract (sommario):
This thesis explores the problem of compatibility between generations in the field of
Digital Television, and proposes solutions to this problem. Since its inception, the DTV
has been under development without taking into account the ability to continue
receiving broadcasts with legacy equipment when a new generation is introduced.
Therefore, when it comes time to introduce a new technology, a simulcast solution is
usually used.
The study carried out in this thesis explains the reasons why a traditional simulcast is a
problem. As a concrete study example, the case of the transition from SD MPEG-2 to
HD H.264 broadcasts according to the DVB-T standard is analyzed. And how this
problem unnecessarily extends the transition periods between generations. In this way it
postulates that one way to promote the development of new generations of Digital
Television is precisely to shorten transition times.
In order to facilitate the transition to a new generation, different technical solutions have
been studied and developed that provide a certain degree of compatibility between
generations. The results obtained conclude that it is not only feasible, but also desirable,
to incorporate inter-generational compatibility solutions in Digital Television standards.
Using the techniques described here, and others listed as future work, it would be
possible for new standards and generations to incorporate this necessary capability.Esta tesis explora el problema de la compatibilidad entre generaciones en el área de la Televisión Digital, y propone soluciones a ese problema. Desde su inicio, la TVD se ha ido desarrollando sin tener en cuenta la capacidad de seguir recibiendo emisiones con equipos antiguos cuando se introduce una nueva generación. Por lo tanto, cuando llega el momento de introducir una nueva tecnología, se suele utilizar una solución de emisión simultánea o simulcast. El estudio realizado en esta tesis explica las razones por las que un simulcast tradicional es un problema. Como ejemplo de estudio específico, se analiza el caso de la transición desde emisiones SD MPEG-2 a HD H.264 utilizando el estándar DVB-T. Y cómo esta dificultad alarga innecesariamente los períodos de transición entre generaciones. En esta línea se postula que una forma de promover la implantación de nuevas generaciones de Televisión Digital es precisamente acortando los tiempos de transición. Para facilitar la transición a una nueva generación, se han estudiado y desarrollado diferentes soluciones técnicas que proporcionan un cierto grado de compatibilidad entre generaciones. Los resultados obtenidos concluyen que no sólo es factible, sino también deseable, incorporar soluciones de compatibilidad intergeneracional en los estándares de Televisión Digital. Utilizando las técnicas aquí descritas, y otras enumeradas como trabajos futuros, sería posible que los nuevos estándares y generaciones incorporaren esta característica necesaria.
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Yang, Binbin. "Enhancing User Engagement in Electronic Commerce Through the Transition to a Digital Ecosystem". Thesis, Umeå universitet, Institutionen för informatik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-124532.
Testo completoAbstract (sommario):
Electronic Commerce (EC) companies are faced with a highly competitive environment today. Strengthening user engagement in digital ecosystems is a promising approach to increasing value co-creation. However, enterprise-oriented user engagement strategies examined in previous studies are relatively inadequate to meet today’s expectations. This paper looks to answer the question, “how to effectively strengthen user engagement to acquire a sustainable value co-creation system in EC.” A plausible user engagement strategy was revealed by analyzing a single case study in the music sector based on details of a digital ecosystem. Semi-structured interviews performed with company Xiami along with their users, show that the recognition of user-oriented needs and the expansion of user-driven demands are two key aspects for EC companies to maintain a sustainable growth of value co-creation.
18
Stange, Olof. "How magazines could remain competitive in the transition from print to digital media". Thesis, KTH, Entreprenörskap och Innovation, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-189171.
Testo completoAbstract (sommario):
During the past decades, the world has seen a fast development in information technology. This has led to significant changes in many different industries including the media industry. The transformation is in progress and is unceasingly changing the game rules for media companies. Many magazines are struggling in the new competitive media landscape since existing business models in the print industry are hard to apply to the digital industry. In order for magazines to remain competitive they need to develop their revenue models and adjust to the new game rules in the industry. This thesis is focused on how magazines could develop their businesses in order to remain competitive in the transition from print to digital media. The research methods used were semi-structured interviews and a survey. The interviews were conducted with seven different media experts in order to find possible directions for Swedish magazines in general. The survey was aimed exclusively to the entertainment magazine Nöjesguiden in order to decide what additional revenue models fit them best. The results from the interviews implicate that magazines should continuously evaluate their print business using a holistic perspective, adopt long-term perspectives, initiate cost cutting in the print business and put the cost savings into investments for the future. In addition, they should have four main areas of focus in the digital business – strategy, content, target group and data. Strategy relates to focusing on the digital business, being innovative and trying new things. The results also show that it is beneficial to separate the old business from the new since the old business is linked to outdated industry structures. Regarding content, the direction should be either very broad or very niched. Thereto, magazines should focus on unique content, which refers to content that is not available elsewhere by other content providers. In addition, magazines should evaluate what makes their content unique. This is closely related to the target group, which is going to become more important in the future media climate. For magazines, getting to know their specific target group and focusing on improving the brand recognition are going to be advantageous factors in being competitive in the digital media climate. In conclusion, magazines should use data to continuously evaluate their business and use that knowledge to improve their offer. The results from the survey shows that the best new revenue model for Nöjesguiden at the moment is events.
19
Lundström, Isabelle, e Julia Löfstedt. "Leading Teams in Times of Turmoil : The forced transition into the digital future". Thesis, Uppsala universitet, Företagsekonomiska institutionen, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-448635.
Testo completoAbstract (sommario):
Background: Due to the ongoing COVID-19 pandemic, the associated restrictions and recommendations has forced a transition into a more digital and virtual environment. Thus, businesses have faced numerous challenges regarding both leading and working at a distance. Leading to an increased need for digital skills and new ways of working, as has been advocated by successful international consulting firms. Purpose: The purpose of this study was to develop the research about distance leadership, leadership in virtual and digital contexts, and leadership in crisis. Thus, the aim was to investigate and compare team leadership, such as it was before the recommendation and restrictions caused by COVID-19, with the present. Research question: How has the forced digital transformation affected the team leadership from the perspective of both leaders and employees? Methodology: A case study was conducted in which semi-structured interviews, a collection of background information and data from an internal personnel survey was used to gather in-depth information. Conclusion: The results from the case study indicated three main challenges: internal communication, the need for combined and adaptable leadership, and the observed outcomes from the relation-oriented and task-oriented behaviors.
20
Wong, Tzu Yen. "Image transition techniques using projective geometry". University of Western Australia. School of Computer Science and Software Engineering, 2009. http://theses.library.uwa.edu.au/adt-WU2009.0149.
Testo completoAbstract (sommario):
[Truncated abstract] Image transition effects are commonly used on television and human computer interfaces. The transition between images creates a perception of continuity which has aesthetic value in special effects and practical value in visualisation. The work in this thesis demonstrates that better image transition effects are obtained by incorporating properties of projective geometry into image transition algorithms. Current state-of-the-art techniques can be classified into two main categories namely shape interpolation and warp generation. Many shape interpolation algorithms aim to preserve rigidity but none preserve it with perspective effects. Most warp generation techniques focus on smoothness and lack the rigidity of perspective mapping. The affine transformation, a commonly used mapping between triangular patches, is rigid but not able to model perspective effects. Image transition techniques from the view interpolation community are effective in creating transitions with the correct perspective effect, however, those techniques usually require more feature points and algorithms of higher complexity. The motivation of this thesis is to enable different views of a planar surface to be interpolated with an appropriate perspective effect. The projective geometric relationship which produces the perspective effect can be specified by two quadrilaterals. This problem is equivalent to finding a perspectively appropriate interpolation for projective transformation matrices. I present two algorithms that enable smooth perspective transition between planar surfaces. The algorithms only require four point correspondences on two input images. ...The second algorithm generates transitions between shapes that lie on the same plane which exhibits a strong perspective effect. It recovers the perspective transformation which produces the perspective effect and constrains the transition so that the in-between shapes also lie on the same plane. For general image pairs with multiple quadrilateral patches, I present a novel algorithm that is transitionally symmetrical and exhibits good rigidity. The use of quadrilaterals, rather than triangles, allows an image to be represented by a small number of primitives. This algorithm uses a closed form force equilibrium scheme to correct the misalignment of the multiple transitional quadrilaterals. I also present an application for my quadrilateral interpolation algorithm in Seitz and Dyer's view morphing technique. This application automates and improves the calculation of the reprojection homography in the postwarping stage of their technique. Finally I unify different image transition research areas into a common framework, this enables analysis and comparison of the techniques and the quality of their results. I highlight that quantitative measures can greatly facilitate the comparisons among different techniques and present a quantitative measure based on epipolar geometry. This novel quantitative measure enables the quality of transitions between images of a scene from different viewpoints to be quantified by its estimated camera path.
21
Whipple, Julie F. "Darkroom to digital a transition of photography from the wet lab to the computer /". The University of Montana, 2008. http://etd.lib.umt.edu/theses/available/etd-07032008-163604/.
Testo completoAbstract (sommario):
My professional paper is designed as a teaching tool to help other instructors to be able to teach the basics of digital photography to their students. It includes a brief history of the development of photography, information about the digital camera, how to take better pictures, and how to begin working with photos using Photoshop. Instructions and lesson plans are designed to teach all levels of students learning abilities.
22
Huang, Miao. "Digital transition in Chinese newspaper industry : the case studies of two metropolitan newspaper companies". Thesis, University of Glasgow, 2017. http://theses.gla.ac.uk/8067/.
Testo completoAbstract (sommario):
This study focuses on digital transition in the Chinese newspaper industry and on associated changes in management and business practice at newspaper publishers. Drawing on a case study analysis of two leading metropolitan newspaper companies – the Qianjiang News Chain and the Nandu News Chain, it sets out to investigate how newspaper publishers are adjusting their management strategies and production practices to adapt to technological changes and ensure their survival. It also examines to what extent the changes are in line with the relevant government policies. Looking specifically at electronic retailing and online marketing operated by the two publishers respectively, this dissertation will address three questions. How the strategic management of newspaper companies in China is changing to facilitate the operation of new businesses in the Internet era. How content production related to the new businesses is changing in response to digital transition and the integration of editorial and commercial activities. To what extent the altered practices of newspaper companies are either consistent or conflicting with the requirement of related government policies. Findings of the empirical analysis are in three aspects. Firstly, in order to facilitate the operation of new businesses, the strategic management of QNC and NNC are changing in three aspects: corporate expansion, organisational re-structuring and cultural adaption. Secondly, the production activities of QNC and NNC are simultaneously affected by the practices of digitisation and commercialisation, which is reflected by the special content products – promotional articles. Lastly, with the changes of organisational activities, the industry practices of QNC and NNC are consistent to the inclination of certain state policies on the one hand, and conflict with some established government regulations on the other. In summary, the practice of new business in QNC and NNC is the miniature of the transition in the Chinese newspaper industry, which inherits the features formed in the decade of evolvement. Meanwhile, as the two publishers are pioneers in the Chinese newspaper industry, their practices lead the trend of novel exploration in the future.
23
Gebremichael, Keariam, e Saadul Islam Khan. "Transition Risk on a Consumer’s Journey : Influencing Concepts towards the occurrence of Transition Risk on a Consumer’s Journey on Virtual Reality Shopping". Thesis, Linköpings universitet, Företagsekonomi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-167053.
Testo completoAbstract (sommario):
Background: Retailing through Virtual Reality (VR) is faced with a dilemma of potential customers using the VR to look for products online, but somehow do not make a purchase online and prefer to visit the physical stores instead. This phenomenon is referred as Transition Risk. Aim: To develop an understanding regarding the concepts and factors that influence the occurrence of transition risk by using UTAUT2 framework. Identify those concepts and thus be able to assist retailers in diminishing the transition risk gap. Methodology: Is a quantitative study that involves an experiment followed by a questionnaire as the research instrument. The data was analyzed through regression analysis by using SmartPLS 3.0 as the data analysis tool for SEM. An exploratory research design for the cross-sectional study of a small sample of 45 people experimented. Findings: Findings of the research suggest that transition risk has a direct relation with the UTAUT2 constructs: performance expectancy, effort expectancy, facilitating conditions, social influence, hedonic motivation, and habit of the consumer. Moreover, absence of familiarity with VR retailing, social influence and consumer’s habit of web-rooming and retail therapy are significant contributors towards transition risk. Furthermore, UTAUT2 framework can also be used to identify reason for no usage and/or abandoning of use technology.
24
Burneau, Laura. "BIM et Rénovation : modélisation systémique de la transition numergétique en gestion de patrimoine immobilier". Thesis, Lyon, 2019. http://www.theses.fr/2019LYSET012.
Testo completoAbstract (sommario):
Les transitions énergétique et numérique du secteur de la construction apparaissent comme deux évolutions sociotechniques majeures de notre siècle. Cette thèse a pour objet l’étude de leurs impacts mutuels et des conséquences de leur rencontre sur la performance globale du parc immobilier rénové. Le modèle MACARON (Modèle d’Analyse Coûts - Avantages de la Rénovation Orientée Numérique) présenté dans ces travaux considère quatre échelles spatiales assimilées à quatre échelles potentielles de la décision / action numergétique : i) l’usager [NANO] ; ii) l’objet technique bâtiment / parc homogène [MICRO] ; iii) la cellule managériale de l’organisation [MESO] ; iv) l’objet technique parc urbain hétérogène [MACRO] et quatre thématiques transversales i) la performance énergétique ; ii) le déploiement du numérique ; iii) la capacité financière ; iv) la ressource humaine. Dans son avancement actuel, seules les échelles MICRO et MESO font l’objet de développements et d’analyses. Suivant les principes de la modélisation systémique, notre contribution inclut l’identification des éléments d’interrelation entre performance énergétique et déploiement numérique. Ce travail, qui constitue la phase de conception / construction de notre système complexe, est suivi dans un second temps de l’exploitation du modèle laquelle comprend la construction d’alternatives contrastées de la stratégie numergétique de l’organisation gestionnaire et l’évaluation de leurs performances respectives dans l’amélioration du parcThe energy and digital transitions of the construction sector and built environment appear as two major sociotechnical transitions of our century. This thesis aims to study their mutual impacts and the consequences of their meeting on the overall performance of the renovated building stock. The MACARON model (Cost-Benefit Analysis Model of Digital-Oriented Renovation) presented in this work considers four spatial scales assimilated to four potential scales of numergetic decision / action: i) the user [NANO]; ii) the homogeneous building / estate as technical object [MICRO]; iii) the managerial cell of the organization [MESO]; iv) the heterogeneous urban estate as technical object [MACRO] and four cross-cutting disciplines i) energy performance; ii) digital deployment; (iii) financial capacity; iv) human resources. In current progress, only the MICRO and MESO scales are subject to development and analysis. Using system dynamics, our contribution includes identifying the interactions between energy performance and digital deployment. This work provides the design and construction modeling stages of our complex system and the exploitation of the model. That includes the construction of contrasting alternatives of the managing organization numergetic strategy and the evaluation of their respective performance in improving the estate
25
Hadjioannou, Markos. "From light to byte: the implications of the transition from celluloid to digitial cinema". Thesis, King's College London (University of London), 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.602373.
Testo completo
26
Allowatt, Anthony James. "PhETA: An Interactive Tool for Analyzing the Quality of Digital Photographs from Edge Transitions". Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/35735.
Testo completoAbstract (sommario):
The goal of this thesis is to build an interactive tool for analyzing the quality of a digital image and predicting the scale at which it may be published. Since edges are present almost everywhere in most digital images, we use a mathematical edge model as the basis of analysis. In particular, we are interested in the luminance and chromaticity behavior at edge boundaries. We use this model to develop PhETA — Photograph Edge Transition Analyzer — an interactive tool that allows novice users to view and understand the results gained from this analysis in a clear and simple manner.Master of Science
27
Mobtaker, Sare. "Transition towards digital servitization in fossil-free society : An explorative study in the construction equipment industry". Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-55243.
Testo completoAbstract (sommario):
Sustainability is one of the mega trends that is emerging nowadays. It is built on protecting our planet and its resources. Agenda 2030 is a universal call to action, which demonstrates the significance of moving towards sustainability in three different areas of environmental, social, and economic at the international level. One of the focal points of environmental sustainability deals with climate change due to using fossil fuels and greenhouse gas emissions. Sweden aims to be one of the world’s first fossil-free nations, and its initiative Fossil Free Sweden offers roadmaps in different sectors to accomplish this goal. Growing the service business through using digital technologies is a strategy many companies tend to in the fast-changing world. Although it potentially leads to competitive advantage and enhancing revenues, it is a challenging situation, particularly for industrial firms. This study seeks to consider a more holistic view regarding the transition that companies need to take by 2030 in pursuing digital servitization and at the same time becoming fossil fuel free. Surviving the transition can not happen without revising business models and exploring new business opportunities. To address this issue, an explorative case study is performed in a manufacturing company in the construction equipment industry to collect, analyze and frame the existing knowledge in digital servitization and business model, moreover, to identify the factors that industrial firms should consider in improving their service business in the transition towards fossil-free society. To do so, 1) a set of coproduction sessions are held in the case company with advanced engineering and researchers, 2) as well an online survey is distributed inside the case company, to collect valuable knowledge and practical insight. The outcome of the research is a framework that can be used as a practical guide to support firms in the transition towards digital servitization and help them to figure out their current position in case of offerings and business models and plan for the next steps and new opportunities. In addition, six important factors with their sub-factors are offered accompanied by six general guidelines that firms should consider in their journey towards the transition.
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Labaeye, Adrien [Verfasser], e Adrien [Verfasser] Labaeye. "The Role of Digital Commons in a Socio-Ecological Transition of Cities / Adrien Labaeye, Adrien Labaeye". Berlin : Humboldt-Universität zu Berlin, 2020. http://d-nb.info/1222028735/34.
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Giua, Carlo <1994>. "Smart Farming in Italian agriculture: essays on adoption and diffusion dynamics shaping the agricultural digital transition". Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2022. http://amsdottorato.unibo.it/10379/1/C.%20Giua%2C%202022.%20Smart%20Farming%20in%20Italian%20agriculture%20-%20essays%20on%20adoption%20and%20diffusion%20dynamics%20shaping%20the%20agricultural%20digital%20transition.pdf.
Testo completoAbstract (sommario):
Smart Farming Technologies (SFT) is a term used to define the set of digital technologies able not only to control and manage the farm system, but also to connect it to the many disruptive digital applications posed at multiple links along the value chain. The adoption of SFT has been so far limited, with significant differences at country-levels and among different types of farms and farmers. The objective of this thesis is to analyze what factors contributes to shape the agricultural digital transition and to assess its potential impacts in the Italian agri-food system. Specifically, this overall research objective is approached under three different perspectives. Firstly, we carry out a review of the literature that focuses on the determinants of adoption of farm-level Management Information Systems (MIS), namely the most adopted smart farming solutions in Italy. Secondly, we run an empirical analysis on what factors are currently shaping the adoption of SFT in Italy. In doing so, we focus on the multi-process and multi-faceted aspects of the adoption, by overcoming the one-off binary approach often used to study adoption decisions. Finally, we adopt a forward-looking perspective to investigate what the socio-ethical implications of a diffused use of SFT might be. On the one hand, our results indicate that bigger, more structured farms with higher levels of commercial integration along the agri-food supply chain are those more likely to be early adopters. On the other hand, they highlight the need for the institutional and organizational environment around farms to more effectively support farmers in the digital transition. Moreover, the role of several other actors and actions are discussed and analyzed, by highlighting the key role of specific agri-food stakeholders and ad-hoc policies, with the aim to propose a clearer path towards an efficient, fair and inclusive digitalization of the agrifood sector.
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Baumann, James A. "Why do I have to switch to DTV? An Analysis of Public Interest in the Digital Television Transition". Bowling Green, Ohio : Bowling Green State University, 2009. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=bgsu1242667859.
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Scherling, Daniel, e Lind Daniel Camarero. "Digital Transformation and Virtual Team Transition due to the COVID-19 Pandemic : An Empirical Study on Virtual Teams within Organizational Change Management". Thesis, Jönköping University, IHH, ESOL (Entrepreneurship, Strategy, Organization, Leadership), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-52750.
Testo completoAbstract (sommario):
Abstract Background: Due to the COVID-19 pandemic a series of regulations and recommendations were imposed. This resulted in firms transitioning their co-located teams into virtual teams in an effort to slow down and prevent the spread of COVID-19. This research focuses on the individual team member’s experience of the transition. The transition is a digital transformation and organizational change and its effects on the individual team member is being studied. Purpose: The purpose of this research study is to explore how individual team members experience the transition from a co-located team into a virtual team. Trust, communication and social interactions are previously known challenges for virtual teams. Therefore, we strive to explore how these aspects have been affected by the transition and how the individual team member has experienced it. Method: This study follows a qualitative research design and the method of choice is semi-structured interviews that have been carried out in a virtual environment due to the current COVID-19 pandemic. Eleven interviewees have contributed to the empirical study. The main findings are presented in chapter 4 and analyzed against existing literature in chapter 5, to finally be concluded in chapter 6. Conclusion: Trust has previously been listed as a major challenge for virtual teams. However, our empirical findings have not identified trust as a major challenge and therefore contradict this. Communication has changed and the biggest two contributors to this is that the communication is digital and that body language becomes less effective in a virtual setting as compared to face-to-face communication. However, communication has not been a major issue during the transition but rather a complication. Social interactions were identified as the aspect affecting the team members the hardest since they had become non-existent except for in the virtual environment in many cases. A high level of digital maturity and the teams previously being co-located is seen to have made the transitions easier in terms of trust and communication. Furthermore, team members struggle to find their work life balance and often work more hours.
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Bertrand, Nicolas. "Transition vers le cinéma numérique : Contributions pour le cinéma d’art et essai". Phd thesis, Toulouse, INPT, 2015. http://oatao.univ-toulouse.fr/15133/1/nbertrand.pdf.
Testo completoAbstract (sommario):
Les salles de cinéma sont passées à l'ére numérique. L'objectif de cette thèse est d'étudier le déploiement du cinéma numérique pour les salles d'art et essai et de proposer des solutions techniques ouvertes, basées sur des logiciels libres et gratuits. Nous présentons les impacts du passage au numérique pour les distributeurs et les exploitants indépendants. Nous détaillons le fonctionnement du cinéma numérique : de la création de contenu au format DCP, au système de projection en salles. Dans cette thèse, nous proposons deux solutions : une solution de projection basée sur le lecteur multimédia VLC, et un système de transmission dématérialisée de DCP des distributeurs vers les exploitants.
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Thacker, Allen J. "The impact of the transition from analog to digital process display gauges on human error and safety in the chemical industry". Morgantown, W. Va. : [West Virginia University Libraries], 2002. http://etd.wvu.edu/templates/showETD.cfm?recnum=2533.
Testo completoAbstract (sommario):
Thesis (Ed. D.)--West Virginia University, 2002.Title from document title page. Document formatted into pages; contains ix, 82 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 75-79).
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Deunf, Elise. "Préparation, Caractérisation et Activation Electrochimique de Nouveaux Complexes Métallo-Cyclodextrines". Phd thesis, Université Pierre et Marie Curie - Paris VI, 2010. http://tel.archives-ouvertes.fr/tel-00814773.
Testo completoAbstract (sommario):
L'association entre un métal de transition et des cyclodextrines est d'un grand intérêt pour développer de nouveaux catalyseurs, mimes enzymatiques, capteurs ou fils moléculaires. L'interaction entre un complexe métallique et une cyclodextrine ouvre de nouvelles opportunités dans la chimie de coordination où de nouvelles réactivités et sélectivités sont attendues. Dans ce contexte, plusieurs composés totalement originaux de type cobalt(II)-cyclodextrines et cuivre(II)-cyclodextrines ont été synthétisés et caractérisés par voie électrochimique. La réactivité des espèces bas-valentes électrogénérées a été également étudiée vis-à-vis de dérivés halogénés alkyles et aromatiques. Il a été démontré que la dualité stabilité / réactivité des espèces transitoires pouvait être modulée en fonction de la nature du ligand greffé sur la cyclodextrine. Des études spectrophotométriques UV-Visible et spectroscopiques on été associées à ce travail, afin d'étudier la structure en solution d'un de ces complexe métallo-cyclodextrines. Ce travail original ouvre de nouvelles opportunités dans l'utilisation d'effets supramoléculaires biomimétiques dans les processus catalytiques afin de les rendre plus efficaces et sélectifs aussi bien en solvants organiques qu'en milieu aqueux (chimie verte).
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Esposito, Antonella. "The transition ‘from student to researcher’ in the digital age: Exploring the affordances of emerging ecologies of the PhD e-researchers". Doctoral thesis, Universitat Oberta de Catalunya, 2014. http://hdl.handle.net/10803/290995.
Testo completoAbstract (sommario):
This doctoral dissertation is concerned with an exploratory study on how emerging learning ecologies enabled by Web 2.0 and social web are affecting the self-organized practices and dispositions in the digital settings of individual PhD students. The research endorses a constructivist grounded theory approach, where data collection has been undertaken across three Italian and one UK universities and has included a sequence of online questionnaires, individual interviews and focus groups. The findings being generated provide a repertoire of social media practices for research purposes; a framework conceptualizing the trajectories in the digital, in terms of Space, Time, Socialization, Digital identity, Stance and Tensions; the forms of resilience and the tensions underlying the PhD researchers’ digital engagement. The affordances of PhD e-researchers’ emerging ecologies are therefore understood as multi-dimensional and transitional trajectories intentionally undertaken by the individuals and generating a range of reactions toward the opportunities provided by the open Web.
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Al, Siyabi Said Mohamed. "Traditions in Transition: The Meanings and Values of Vocal Heritage in Contemporary Omani Culture". Thesis, Griffith University, 2011. http://hdl.handle.net/10072/365320.
Testo completoAbstract (sommario):
By virtue of its geographical location on the Arabian Peninsula, the Sultanate of Oman has lain at the intersection of networks of trade and exchange between Asia, eastern Africa and Europe since antiquity.This has given Oman a rich archeological and architectural heritage. However, what is less well appreciated beyond the Gulf Region is that the flows of people and ideas in which Oman has been engulfed for over two millennia have also produced an equally rich heritage of folksong and dance.
This thesis is the first scholarly study of Omani vocal heritage. After tracing the origins and most significant aspects of the history of Omani singing and associated performative traditions, the thesis considers the part that this vocal heritage has played in Oman‘s emergence as an economically modern and politically stable nation.
The foundations for Oman‘s robust economic development over the past five decades were created in the early 1970s by His Majesty Sultan Qaboos bin Said Al Said. It has been the goal of His Majesty to ensure that modernization and the adoption of western technologies and ideas occur without diminishing social cohesion or any loss of cultural identity. In this respect Oman stands out amongst emerging nations in that the preservation of cultural heritage has been recognized as a high priority. Indeed, since the mid-1990s Oman arguably has had the most well-developed policy framework and legislation for the preservation of cultural heritage preservation in the Arab world.Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Humanities
Arts, Education and Law
Full Text
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Oliver, Jessica Eve. "'The raft, the ladder, the transitional space, the moratorium ...' : digital interventions in twenty-first-century private and public lives". Thesis, University of Sussex, 2018. http://sro.sussex.ac.uk/id/eprint/80726/.
Testo completoAbstract (sommario):
This project explores the nebulizing effect of digital technologies on their analogue counterparts, and their cultural and social repercussions as depicted in early twenty-first-century novels. The thesis finds five central concerns of digital culture, areas in which the structures and codes of the culture have had to be recalibrated to such a degree to accommodate virtuality, and examines them through the works of a novelist with a fascination for, or resistance to this change. The thesis identifies an irreversible shift in the mental apparatus caused by digital technologies that work on narrativizing powers such as memory, interpretation, and perception, that finds expression in fiction. Chapter 1 reads Jennifer Egan's A Visit from the Goon Squad and The Keep as responses to the phenomena of geomapping, networking and communications in the age of global reach. Chapter 2 uses Tom McCarthy's novels C, Remainder, and Satin Island to illustrate the distorting effects of digitality on time. Chapter 3 brings to focus the more recent work of J. M. Coetzee, Summertime, Elizabeth Costello, and Diary of a Bad Year, that engages with digitality and a cultural landscape increasing reliant on distancing technologies. Chapter 4 examines the recording and surveilling technologies at the heart of Ali Smith's twentyfirst- century novels How to Be Both, Autumn and The Accidental. Chapter 5 reads Dave Eggers' The Circle as a critique of corporate digital culture, and examines the role of taste in articulating personal freedom. The conclusion analyses a current crisis point in the digital project, and gestures towards the future of technology in the contemporary novel, speculating on what elements discussed in the thesis might endure and shape fictional narrative as the age of digitality progresses.
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Mwondha, Priscilla. "Towards Bridging the 'Gender Digital Divide' in Uganda: A Study of University to Work Transition Patterns among ICT graduates". The University of the Western Cape, 2018. http://hdl.handle.net/11394/5767.
Testo completoAbstract (sommario):
Philosophiae Doctor - PhD (Development Studies)This dissertation examines the gender digital divide in the Information and Communication Technology industry in Uganda by analysing admission and graduation dynamics among men and women in ICT degree programs at Makerere and Busitema Universities and the transition of ICT graduates from university to work with specific focus on Mobile Telecommunication Network- Uganda and Uganda Telecom Limited companies. It explores the socio-cultural stereotypes and perceptions that influence the participation and progress of women professionals in the ICT industry and examines the diverse ways in which women in the ICT industry respond to these stereotypes and perceptions. A qualitative research design and methodology was employed to realise these objectives. The data which informed this study was obtained through detailed in-depth interviews and focus group discussions, analysis of admission, graduation and employment data, and official reports. The study reveals that the way socio-cultural structures and institutions are set up — often in favour of men over women — as well as the differential construction of both women and men — inferior feminine vis-à-vis superior masculine — particularly, in a predominantly patriarchal Ugandan society, continue to shape and inform the uptake of ICTs in the country. The dissertation shows that more men than women are admitted into ICT degree programs at Makerere and Busitema universities. Gender ‘appropriateness’, role models, failure to attain minimum admission requirements, influence of parents and misconception about ICT work variously influence career choice among men and women. Employment patterns among men and women in the ICT industry indicate that the top managerial and technical positions are largely dominated by men while women constitute many of employees at low level, less technical positions. Transition patterns also show that the numbers of women gradually reduce at each critical career transition point. Gender related socio-cultural stereotypes such as male scientist vis-à-vis technophobic woman, working man vis-à-vis domesticated woman, and dependent woman vis-à-vis independent man underlie these paradoxes. These disempowering’ socially constructed labels continue to obstruct many of women from participating in the ICT industry. Finally, this thesis has revealed that a wide range of ‘everyday’ response mechanisms including juggling family and work responsibilities, subterfuge, negotiating, sacrificing career for family, as well adopting the ‘culture of men in technology’ are deployed by women to navigate and challenge the existing socio-cultural stereotypes and constructions which accentuate the gender digital divide in Uganda.
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Oyegun, Caleb. "Supporting social workers transition to remote work : A design concept for tackling communication challanges on social workers digital practices". Thesis, Malmö universitet, Fakulteten för kultur och samhälle (KS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-44965.
Testo completoAbstract (sommario):
The main theme of this thesis is the impact of the sudden transition on service delivery caused by the COVID 19 pandemic on social workers and career practitioners in related fields. Like most professional careers that the sudden takeover of the virus has obstructed, the field of social work has been one ofthe professions that the global pandemic has negatively impacted because of its heavy reliance on face-to-face interactions. By employing research methods, challenges faced while working remotely by the social workers were identified, and a main design concepts was proposed in supporting the work of the social workers.
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Мельник, Леонід Григорович, Леонид Григорьевич Мельник, Leonid Hryhorovych Melnyk, Олександр Миколайович Дериколенко, Александр Николаевич Дериколенко, Oleksandr Mykolaiovych Derykolenko, Олександр Васильович Кубатко et al. "Business Models of Reproduction Cycles for Digital Economy". Thesis, CEUR-WS, 2019. http://essuir.sumdu.edu.ua/handle/123456789/74617.
Testo completoAbstract (sommario):
The intensive use of non-renewable resources and torn technological cycles is the cause for the total destruction of the planet’s ecosystems. The transition of production systems to renewable resources and closed circular cycles can ensure long-run sustainability of economic activities. Circular technologies as the basis of business processes guarantee sustainable transformation of the usual economy to digital one. The reproduction of economic activities in the closed integral cycle “production-interfacing-consumption-recyclingproduction” is the principal condition for the successful functioning of business processes. The scientific grounding, design and practical implementation of reproductive circular business processes create the platform for building a digital
economy and ensures ecosystems sustainability.
The research focuses on the modeling, design and practical implementation (introduction, testing, refinement, and adaptation to specific conditions) of reproductive circular business processes. The research models economic activity and communication of the economic agents in the main areas of the digital economy.
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Merello, Álvaro. "Barriers and facilitators for children with special educational needs education during the COVID-19 pandemic : A systematic literature review in 2020". Thesis, Jönköping University, HLK, CHILD, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-52410.
Testo completoAbstract (sommario):
Although COVID-19 has undoubtedly altered the lives of most human beings, one could argue that the education of children with special needs has been drastically affected. Measures taken by governments and consequences of the pandemic per se have changed the notion of traditional education shifting it to a virtual plane. A total of 6 articles extracted from different databases were included in this systematic review. The aim was to explore the literature on special education and the development of children with special educational needs in relation to the barriers and facilitators they have encountered in coping with the pandemic. Findings show a significant difference between the number of facilitators and barriers found. The high number of barriers in the environment, activities and participation and mental functions, gives an overview of the obstacles that children with special educational needs have faced during the pandemic. Most of the barriers encountered appeared to be interrelated and have reshaped the way education is understood. To address this problem and try to overcome the challenges they pose, efforts must be made at higher levels of society, such as policies, laws, or government support, to ensure the proper development of children.
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Roséen, Jakob. "Enabling Circular Economy with Digital Technology : A case study On the Swedish Online Secondhand Business Sellpy". Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-392703.
Testo completoAbstract (sommario):
Recognizing the responsibility businesses has in sustainable development, a rising number of entrepreneurs are attempting to innovate business models together with digital technology to address environmental and societal needs. Circular business models is an example of how businesses can become more sustainable. However, there is a growing phenomenon of entrepreneurs suggesting digital platforms as a supportive element in an enterprise to enable circular features. This research aims to investigate the role of a single entrepreneur as a transition intermediary to sustainable development by using digital platforms. Additionally, this research aims to explore the success factors and challenges this entrepreneur can uncover. Contrary to most studies, this thesis adopts the entrepreneur's perspective as being a key actor in sustainable development but also as an innovative force in a socio-technical system. A case study was conducted on the Swedish online secondhand store Sellpy. The qualitative data were collected using semi-structured interviews. Given the thesis' exploratory research design, the finding can be used in further research as artifacts for more conclusive and generalizing research. The entrepreneur, as a transition intermediary, can establish valuable partnerships and networks to accelerate circulation and sustainability awareness. Additionally, the entrepreneur can influence others by spreading knowledge to engage other entrepreneurs to innovate businesses towards sustainability. The main success factors found in this case study is the approach to develop with the user community, digital ownership, skilled and diverse workforce, and partnerships with similar businesses. The challenges discovered was to maintain and find new users to enter the circular system and the external skepticism towards sustainability-oriented businesses.
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Shaikh, Meher Talat. "Automatic Identification and Tracking of Retraction Fibers in Time-Lapse Microscopy". Diss., CLICK HERE for online access, 2010. http://contentdm.lib.byu.edu/ETD/image/etd3454.pdf.
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Lundström, Ludvig, e Linn Jensen. "NAVIGATING YOUR WAY THROUGH THE CLOUDS : A qualitative study on the transition to cloud services within Swedish municipalities". Thesis, Umeå universitet, Institutionen för informatik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-184620.
Testo completoAbstract (sommario):
In the wake of a digitally transforming environment, public sector organizations are realizingthe necessity to adopt new ways of managing their operations. The changing expectations anddemands of citizens and stakeholders are triggering such organizations to develop their deliveryof services, as well as digitally transforming their internal processes. As the public sector valuesservice delivery and cost-effectiveness, cloud services have become an attractive option to transition to, due to their flexible and economical characteristics. This qualitative study examines two Swedish municipalities in their transition to cloud services, studying the reasons behind said transition, and how those affect their adoption. The Technology-Organization-Environment (TOE) framework was utilized to evaluate the factors affecting the two organizations’ transitions and adoptions of cloud services, showcasing a connection between the framework’s elements and the analyzed results. The findings show pressure coming from both external and internal sources, restrictions involving governmental regulations and lack ofavailability, as well as how they manage these challenges, by finding new ways to innovate and preparing their organizations for future transitions.
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Tran, Thi Phuong Huyen. "Étude expérimentale de la localisation de la déformation par corrélation d’images sur un analogue de roche soumis à différentes conditions de chargement triaxiaux". Thesis, Université Côte d'Azur (ComUE), 2016. http://www.theses.fr/2016AZUR4083/document.
Testo completoAbstract (sommario):
Ce travail présente une caractérisation expérimentale de la localisation de la déformation et la rupture sur un matériau synthétique analogue de la roche dans différentes conditions de chargement axisymétrique. L’évolution de la localisation de la déformation a été caractérisée par la technique de corrélation d’images bidimensionnelle. Deux gammes d’essais en compression et en extension ont été réalisées à différentes pressions de confinement Pc. Profitant de la technique DIC et de la caractérisation détaillée des propriétés constitutives de GRAM1 par Mas et Chemenda (2014; 2015), nous montrons que l'initiation de la localisation des bandes de déformation est précédée par la déformation élastique uniforme puis la déformation élasto-plastique. La localisation de la déformation est initiée dans le régime de dilatance (la dilatance β est positive) et d’adoucissement (le module d’écrouissage h est négatif). Au cours de l'évolution du chargement, la déformation à l'intérieur de la bande de localisation de la déformation devient compactive (β <0) et est accompagnée par un durcissement du matériau (h> 0). Ceci provoque dans un premier temps l’élargissement de la bande puis l’apparition de nouvelles bandes qui se forment successivement. La formation de ces nouvelles bandes provoque un ralentissement de la déformation dans les bandes préexistantes, ce qui densifie progressivement le réseau. Dans les essais en extension axisymétrique, les fractures se forment perpendiculaires à la contrainte principale mineure σ3 sous un état de contrainte extensif à faible Pc puis compressif quand Pc augmente. Nos résultats présentent une transition continue de la fracture extensive à la fracture cisaillante avec une augmentation de la contrainte compressive. Ceci est en accord avec les résultats obtenus pour les essais en extension réalisées sur des roches naturelles (Ramsey et Chester, 2004 ; Bobich 2005)This work presents an experimental characterization of the strain localization and the rupture on a granular rock analogue material under different conditions of axisymmetric loading. The evolution of the strain localization was characterized by the two-dimensional image correlation technique. Two series of triaxial compression and extension tests were carried out at different confining pressure Pc. Taking advantage of the DIC technique and detailed characterization of GRAM1’s constitutive properties by Mas and Chemenda (2014, 2015), we show that the initiation of deformation localization bands is preceded by the uniform elastic and then elasto-plastic deformation. The strain localization is initiated in the dilatant regime (positive dilatancy factor β) and strain-softening (negative hardening modulus h). During the band evolution, the deformation within it becomes compactive (β<0) and is accompanied by the material hardening (h>0), which causes the band to widen and new bands to form successively. The formation of new bands causes a slowing down the deformation within the prior bands, which makes the progressively densified band network to continuously evolve. In axisymmetric extension tests, the fractures are formed perpendicular to the minor principal stress σ3 in an extensive stress state at low Pc then compressive when Pc increases. Our results show a continuous transition from the extensive fracture to shear fracture with an increase of compressive stress. This is suitable of the results obtained for extension tests performed on natural rocks (Ramsey and Chester, 2004; Bobich, 2005)
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Pinto, Helena Isabel Excelente. "A segurança do doente crítico cardíaco: transição de cuidados do pré-hospitalar para a Unidade de Angiografia Digital e Cardiologia de Intervenção". Master's thesis, Universidade de Évora, 2018. http://hdl.handle.net/10174/24274.
Testo completoAbstract (sommario):
O presente relatório surge no âmbito do Mestrado em Enfermagem em Associação, Área de Especialização em Enfermagem Médico-Cirúrgica: a Pessoa em Situação Crítica. O objetivo é apresentar uma reflexão acerca da forma como os contextos clínicos capacitam o Enfermeiro para cuidados diferenciados, permitindo desenvolver competências comuns, específicas e de mestre, em diferentes domínios, na promoção de cuidados de enfermagem de qualidade à pessoa em situação crítica. Os contextos clínicos capacitam o Enfermeiro Especialista para um cuidar diferenciado, baseado nas mais recentes evidências científicas, uma vez que os contactos com situações complexas o habilitam a responder em tempo útil e de forma adequada. A omissão ou ruído na transferência de informação na transição de cuidados, entre os profissionais de saúde, afeta negativamente a segurança do doente crítico, pelo que se torna imperativo definir estratégias de optimização para uma comunicação eficaz na transição de cuidados de saúde; THE SAFETY OF THE CRITICAL HEART PATIENT: THE CARE TRANSITION OF PRE-HOSPITAL TO THE DIGITAL ANGIOGRAPHY AND INTERVENTIONAL CARDIOLOGY UNIT
ABSTRACT:
The present report was performed under the scope of Master Nursing Degree in Association: Medical-Surgical Nursing: Person in Critical Situation. The aim is to present a reflexion of how clinical contexts enable the Specialist Nurse to develop a differentiated care, allowing him to acquire common, specific and master skills, in different domains, in order to promote nursing quality care to the one in critical condition. The clinical contexts allows the healthcare professional to handle a differential care, based in the most recent scientific evidence, since contacts with complex situations empower him to respond in due course and appropriately. The omission or noise in the transfer of information in care transition, amongst healthcare providers, negatively affects the critical patient safety, therefore being mandatory to define optimization strategies to an effective communication in transition on health care.
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Glavier, Ludovic. "Conception et développement d'un micro détonateur électrique intégrant des nanothermites pour l'amorçage par impact d'explosifs secondaires". Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30016/document.
Testo completoAbstract (sommario):
Les systèmes pyrotechniques sont des éléments clés pour la réussite de la mise en orbite des satellites. Ils permettent de réaliser des fonctions vitales pour la phase de vol d'un lanceur spatial comme l'allumage des moteurs, la séparation d'étages ou la neutralisation. L'actionnement de ces systèmes pyrotechniques nécessite différents effets pyrotechniques comme la génération d'une flamme, d'une grande quantité de gaz et une onde de choc. Ces travaux de thèse interviennent à la suite d'une précédente thèse sur la conception d'un initiateur intelligent et sécurisés permettant de générer une flamme et une grande quantité de gaz mais pas une onde de choc, indispensable dans la réalisation de certaines fonctions pyrotechniques comme la séparation d'étages ou la neutralisation. L'initiateur est piloté par commandes numériques, il dispose d'un stockage local d'énergie, d'une barrière de sécurité mécanique, et d'un PyroMEMS permettant de convertir un signal électrique en un signal pyrotechnique. Cet initiateur est conçu pour remplacer les systèmes pyrotechniques actuellement utilisés sur Ariane 5 car ils sont lourds, encombrants, ils contiennent une grande quantité de substance pyrotechnique augmentant les coûts de fabrication et de stockage, pour finir, les détonateurs et les lignes de transmissions contiennent du plomb dont l'obsolescence est programmé par la réglementation Européenne REACh. L'objectif de ces travaux de thèse est de concevoir et de développer la fonction détonation à partir d'un PyroMEMS contenant moins de 50 µg de nanothermite Al / CuO dans un volume inférieur à 0,83 cm3. Après l'étude des méthodes d'amorçage d'explosif secondaire et de l'état de l'art des détonateurs existant, nous avons conçu une architecture fonctionnant sur la propulsion d'un projectile créant une onde de choc par impact. Le développement de cette fonction détonation a permis d'étudier le comportement de différentes nanothermites (Al / CuO, Al / Bi2O3, Al / MoO3 et Al / PTFE) dans l'optique de propulser le projectile. Un modèle de balistique intérieure est développé avec la combustion de nanothermite Al / Bi2O3 dopé avec du PTFE permettant de conclure qu'il n'est pas possible d'utiliser des nanothermites pour amorcer par impact un explosif secondaire tel que le RDX. Un système de propulsion basé sur la combustion du RDX initié par nanothermite est alors développé avec une étude de l'influence des paramètres dimensionnels. La réalisation d'un démonstrateur final qui permet d'amorcer en détonation du RDX démontre la faisabilité d'un tel dispositif et permet de valider des choix de conceptionPyrotechnic systems are the keys for satellite launching on orbit. Those systems are used for engines ignition, stage separation and self-destruction. To activate those functions, different kinds of initiators are used to generate a flame, pressure from gas expansion and a shock wave. This work involved following a previous thesis on the design of a smart and safe initiator able to generate a flame and pressure form gas expansion but not a shock wave which is essential in achieving certain functions on launcher as stage separation or neutralization. The initiator is controlled by digital controls, it contain local energy source, a mechanical safety barrier and a PyroMEMS for electro-pyrotechnical conversion. This initiator is design to replace Ariane 5 current pyrotechnic systems because they are heavy, bulky, they contain a large amount of pyrotechnic substance increasing the cost of manufacturing and storage. Also detonators and transmission lines contain lead banned by the European REACh. The goal of these thesis works is to design the detonator function from the flame generated by the PyroMEMS containing 50 µg of Al / CuO nanothermite in a volume less than 0,83 cm3 without primary explosive. After the study of secondary explosive priming methods and the state of art of existing detonators, we designed an architecture running on propelling a projectile creating a shock wave through impact. The development of this detonation function was used to study the behavior of different nanothermites (Al / CuO, Al / Bi2O3, Al / MoO3 and Al / PTFE) with a view to propel the projectile. An interior ballistic model is developed with the combustion nanothermite Al / Bi2O3 doped with PTFE to conclude that it is not possible to use nanothermites to ignite in detonation by impact, by a shock to Detonation Transition) a secondary explosive such as RDX. A propulsion system based on the combustion of RDX initiated by nanothermite is then developed with a study of the influence of dimensional parameters. Achieving a final demonstrator allows to ignite in detonation RDX demonstrates the feasibility of such a device and to validate design choices
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Masango, Charles Akwe. "Contemporary copyright fair dealing management issues and their impact on access to information sources and services : South African academic libraries in the transition to the digital environment". Doctoral thesis, University of Cape Town, 2005. http://hdl.handle.net/11427/8727.
Testo completoAbstract (sommario):
Includes bibliographical references (leaves 183-205).This study investigated the perceptions of academic librarians, managers of consortia, users of digital content, and rights holders whether licensing agreements effectively inhibit access to digital content and whether there is a need to establish an equivalent to the fair dealing exemption in the digital environment. The protection that is accorded to digital content is complex. An empirical survey based on qualitative method was conducted in 2003 - 2004 in the Western Cape Province, South Africa, to examine whether licences inhibit access to digital content and whether an equivalent to the fair dealing exemption was necessary in the digital environment. Methodology used in the survey consisted of interviews from structured questions. Using grounded theory, certain perceptions and misconceptions were found in the interview responses. Thereafter it was possible to suggest that the debate as to whether licences inhibit access to digital content and whether an equivalent to the fair dealing exemption is needed in the digital environment is perhaps inconclusive. However, it is proposed that as licences theoretically inhibit access to digital content, it may be necessary for an equivalent to the fair dealing exemption to be instituted to balance the rights of rights holders with those of consumers of digital content. The new fair dealing exemption would be able to theoretically balance the alleged inhibition caused by licensing agreements.
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Gheorghiu, Matei. "Les réseaux de TPE innovantes, des laboratoires de socialisation politique? : Transformation numérique, apprentissage collectif et émergence de normes". Thesis, Paris Sciences et Lettres (ComUE), 2018. http://www.theses.fr/2018PSLED061.
Testo completoAbstract (sommario):
Depuis une dizaine d’années, à la faveur des bouleversements accompagnant la transformation numérique, une nouvelle famille de phénomènes a fait son apparition dans le catalogue des préoccupations académiques légitimes. Citons pêle-mêle les makers, les hackers, les fablabs, hackerspaces et autres tiers-lieux. Un nombre croissant d’études leur est consacré, leur visibilité médiatique est incontournable et une partie des acteurs et structures de cet environnement est engagée dans un processus d’institutionnalisation. Plutôt que d’essayer de faire accéder ces notions à la dignité de catégories sociales objectives, nous avons entrepris dans ce travail de déconstruire leur apparente cohérence en nous appuyant sur l’analyse d’une immersion de plus de 15 ans dans l’écosystème des TPE innovantes. Nous avons par lasuite établi un parallèle entre la dynamique historique de développement du numérique et une dynamique collective d’émergence de nouvelles formes de solidarité. Cette approche nous invite à considérer ces phénomènes comme un symptôme et une étape du processus de transformation des organisations appelé « innovation », au cours duquel les questions relatives aux nouvelles technologies produisent des mobilisations collectives et atteignent ainsi un seuil de politisation aboutissant à l’émergence d’institutions de régulation conjointeWith the social upheaval engedered by the digital transition, a new class of phenomena has entered the realm of established academic concerns. These include Makers, Hackers, Fablabs, Hackerspaces and other third places. An ever-increasing number of studies are devoted to them. Their media visibility is unavoidable. And some actors within this environment are now engaged in institutionalization. Our aim is not to elevate these notions to the rank of objective social categories. Instead, relying on a fifteen year field immersion within the innovative SME ecosystem, we undertake here thedeconstruction of their apparent coherence. We subsequently draw a parallel between the historic dynamics of digital transition and the collective dynamic that has yielded the emergence of new forms and structures of solidarity. This perspective leads us to consider these objects as a peculiar step in organizations’ transformation process, the digital transition, during wich technoloy related issues tend to produce collective mobilizations. In turn, these pass a threshold of politicization, which leads to the emergence of arenas of « joint regulation »
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PAPILLAUD, HÉLÈNE. "The transformations of the major French energy players induced by the energy transition, the emergence of new actors, digitization from an organizational, structural, cultural point of view. : The transformations of major energy players accompanied by the weave consulting firm". Thesis, KTH, Energiteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-210225.
Testo completoAbstract (sommario):
Today, the current energy situation is particularly difficult for major French energy players. Indeed, they have to face high energy prices - that go up and down -, have to look at renewable energies – by integrating them into their energy mix or into their distribution model - and digitize to manage their customer relations - customers’ behavior has changed and utilities have to adapt to this new behavior. They must respond to these problems while being confronted with the arrival of new entrants to the energy market: multiplication of energy players but also appearance of players in telecommunications, data…. To cope with this energy revolution, the great French utilities have no choice but to transform themselves. They must evolve technologically, digitally and also organically, structurally and culturally. The strategy of major historical energy players is therefore completely redesigned in order to give them the possibility of remaining competitive in their market and not losing their place in this revolution. They have to adapt to these new challenges and to transform themselves. Major French energy players, as ENGIE, EDF and RTE, have already started to imagine and implement new strategies to face the current energy challenges. Operational strategy consulting firms such as Weave are there to assist them in their transformation. The consultants of Weave carry out indeed numerous missions to answer the problems of these companies. Weave is here to help these companies to evolve and transform by giving them accompaniment throughout a good overview of the current energy market and current challenges of the society. Weave helps the major French energy actors to deploy new strategies, from the design of the strategy to its implementation. Indeed, Weave has developed a recognized expertise to accompany its clients in the energy transition and respond to the challenges of development and transformation of their value chain. On the basis of innovative offers, Weave intervenes with general management and dedicated businesses.Den nuvarande situationen på energimarkanden är en utmaning för många stora franska energiaktörer. Huvudutmaningarna består idag av höga elpriser som går upp och ned på en volatil marknad, en övergång till förnyelsebara energikällor samt en nödvändig och omfattande digitalisering där särkslit kundrelationerna förändras och utvecklas. Nya aktörer från andra branscher etablerar sig på energimarknaden med nya typer av tjänster och detta innebär att befintliga aktörer måste utveckla nya affärsmodeller. Nya preferenser och beteenden hos kunderna ställer även det nya krav. För att klara denna energirevolution, har franska etablerade energibolag inget annat val än att transformera sig. De måste utvecklas teknologiskt, digitalt men också organisatorisk, strukturellt och kulturellt. Stora historiska energiaktörer behöver därför nya strategier för att förbli konkurrenskraftiga på sina marknader och inte förlora marknadsandelar. Stora franska energiaktörer som ENGIE, EUF och RTE har redan påbörjat detta arbete och nya strategier utvecklas för att möta de aktuella utmaningarna på energiområdet. Strategikonsultföretag som Weave finns där för att hjälpa energibranschens aktörer i denna omvandling. Weave har redan genomfört många uppdrag inom detta område och kan med sin breda kompentens och erfarenhet hjälpa dessa företag att utvecklas och förändras via en god översikt av nuvarande energimarknad och aktuella utmaningar i samhället i allmänhet. Weave kan bistå de stora franska energiaktörerna i framtagande av nya strategier inklusive genomförande. Genom långsiktigt arbete har Weave utvecklat sin expertis och är därför väl lämpade att leda sina kunder i energiomställningen och svara på de utmaningar som en utveckling och omvandling av kundernas värdekedjor innebär.