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1
Mouttaki, Adil. "Rabat ville intelligente : entre ambitions et réalisations." Electronic Thesis or Diss., Université Côte d'Azur, 2024. http://www.theses.fr/2024COAZ2017.
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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
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Vigouroux-Zugasti, Eloria. "L'expérience du numérique chez les aînés : enjeux et limites du solutionnisme technologique." Thesis, Bordeaux 3, 2017. http://www.theses.fr/2017BOR30046/document.
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Les sociétés occidentales se trouvent aujourd’hui confrontées au vieillissement de leur population, sous le double effet de papy-boom et de l’allongement de la vie. Ce contexte pose la question de la prise en charge de la perte d’autonomie des personnes retraitées : coût et disponibilité de places en maisons de retraites, gestion de la dépendance par la famille et par les politiques publiques, etc. La Silver Économie propose des réponses technologiques à ces problèmes sociaux et politiques, en développant de nombreux produits numériques dédiés à la gestion de la perte d’autonomie des aînés. Néanmoins, ces offres ne semblent pas toujours prendre suffisamment en compte la réalité de publics ciblés. Tout d’abord, les technologies semblent ne pas prendre en compte les attentes et les besoins de ce public et ne font que peu de cas de la pluralité des profils des aînés. De plus, les technologies pour l’autonomie tendent à ne pas être adaptées aux aptitudes et aux connaissances numériques des publics qu’elles ciblent. Enfin, ces technologies posent le problème de leur potentiel démocratique, étant donné leur coût élevé. Convoquant l’alliance entre sciences de l’information et de la communication (SIC) et sociologie, nous proposons une étude, prospective, cherchant à appréhender et à comprendre les actuels modes d’appropriation de ces technologies auprès des retraités de plus de 60 ans. Le but de notre démarche est de mettre en évidence les logiques d’usage et d’appropriation actuelles pour vérifier leur adéquation avec des formes de prise en charge technologiques de la perte d’autonomie. Pour ce faire, nous procédons à l’analyse d’un échantillon qualitatif, composé de 31 aînés résidents en Aquitaine et faisant usage des technologies numériques. Les résultats de notre analyse mettent en évidence des niveaux de littératie numérique tout à fait disparates, influencés par de nombreux facteurs : l’âge, les formes d’initiation, les sociabilités individuelles, les parcours biographiques et le rapport à soi. Les usages des technologies numériques prennent sens dans des processus identitaires, qu’ils soient orientés vers la rupture ou vers la continuité, en lien avec le passé, le présent et le futur des usagers. Les technologies participent à de nouvelles formes de sociabilité, prenant le relai des modalités classiques de lien social. Les pratiques de recherche par Internet, quant à elles, permettent à l’usager de développer un nouveau rapport à soi-même. Nous concluons la nécessaire adaptation des technologies numériques à ses appropriations identitaires des usagers aînésNowadays, Western societies are confronted with the ageing of their population, due to the consequences of the baby-boom and to a longer life expectancy. This context highlights the necessary attention paid to the loss of autonomy of seniors : cost and availability of retirement homes, management of dependency by family and by public policies, etc. The Silver Economy offers technological answers to these social and political problems, by developing many digital products dedicated to reducing the loss of autonomy among seniors. However, these solutions do not always seem to pay sufficient attention to the reality of elderly people. First, technologies do not seem to take into account the expectations and the needs of this population, such as the plurality of their profiles. Moreover, technologies to maintain autonomy do not seem to be adapted to their digital skills and knowledge. Finally, we can question the non democratic potential of digital technologies dedicated to health, considering their high cost whilst the number of retired people living under the poverty line has increased. In our study, we proposed a mixed approach, combining sociology and the information and communication sciences (CIS). Thus, we undertook a prospective study, whose purpose was to apprehend and to understand the current usage of digital technologies among retired people over 60 years old. Our aim was to highlight how seniors use digital devices and services, in order to verify if they are in line with the forms of technological management existing to support their autonomy. To do so, we used a qualitative methodology and surveyed 31 retired users living in Aquitaine. The results of our survey reveal totally disparate levels of digital literacy, influenced by many factors, such as age, contexts of learning, degree of sociability, biographical trajectories and self image. The use of digital technologies is deeply linked to identity processes, whether they are oriented towards biographical rupture or continuity, in relation to the past, the present and the future of the users. Technologies contribute to new forms of sociability, taking over classical ways of social bonding. Internet search practices, on the other hand, allow the user to develop a new self image. We conclude on the necessary adaptation of digital technologies to its identity appropriations of the elderly users
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Mayyass, Khaled A. "Gradient adaptive digital filtering: Problems and solutions." Thesis, University of Ottawa (Canada), 1995. http://hdl.handle.net/10393/9498.
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The LMS adaptive algorithm has always been attractive to researchers in the field of adaptive signal processing due to its inherent conceptual and implementational simplicity. Unfortunately, this elegant simplicity is undermined by problems associated with the direct use of the LMS algorithm. One of the main disadvantages of the LMS is its relatively slow convergence. We deal with this problem for FIR adaptive filters by proposing two algorithms based on different approaches. The first algorithm relies on the time-varying step size approach. The step size of the algorithm is adjusted according to an error autocorrelation function. As a result, the algorithm can efficiently sense the adaptation state while maintaining the immunity against independent noise disturbance. The second algorithm is a gradient-based one that combines time- and order-updating when searching the bottom of the MSE surface, thus resulting in more efficient use of the available information. Moreover, two possibilities for the order update are considered: straightforward sequential or selective schemes. Approximate analysis of convergence and steady state performance of the two algorithms are provided. The slow convergence problem of the LMS algorithm is also investigated for IIR adaptive filters based on output-error formulation. A new adaptive algorithm is proposed. The algorithm combines the least mean square (LMS) method with its low complexity and the least squares method with its fast convergence into a coupled LMS-LS adaptive scheme. Simulation examples indicate that the proposed scheme converges significantly faster than the LMS with minimal increase in complexity. Next, we consider the Leaky LMS algorithm as an LMS variant proposed to deal with numerous problems that arise in direct application of LMS, including: lack of persistent excitation in the input sequence, stalling, bursting, etc. However, despite the wide spread usage of the Leaky LMS, there has been no detailed study of its performance. We present an analytical treatment of the mean square error for zero-mean Gaussian input data. Exact expressions for the second moment of the coefficient vector, the algorithm misadjustment, and rigorous conditions for MSE convergence are derived. Finally, we consider one of the common applications of the LMS algorithm, echo cancellation in telephone networks. We investigate the presence of bursting on a back-to-back hybrid connection. Based on the essential fact that the high cross correlation between the input to the adaptive echo canceler and the transmitted signal at the near-end is the root cause of the bursting problem, we modify the conventional echo canceler such that under bursting circumstances the cross-correlation is substantially reduced and bursting is averted. The proposed system ensures normal operation is not affected. Implementation details of the proposed system are studied.
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Mertiri, Savo. "Digital Transformation in the IT Solutions sector." Thesis, Uppsala universitet, Industriell teknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-367079.
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Digital Transformation is the integration of digital technology into all business areas, fundamentally changing how you operate and deliver value to customers. The purpose of this research is to explore to what degree has IT solution sector companies have digitally transformed during the past few years. Qualitative analysis was used to analyze the literature and the empirical data and make the assumptions required. The results indicate that DT is a procedure that involves integrating technology in all business areas and companies in the IT Sector choose to start the procedure to become more efficient and able to make frequent changes in order to satisfy their market and keep up with competition. The main barriers found are, in company communication, Hierarchy Financial requirements and unclear digital transformation strategy. The impact of failing to digitally transform is losing market share due to inability to keep up with the competition.
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Ho, Sze-lok, and 何思樂. "Technical solutions for conducting investigations in digital age." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B48521802.
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Confidentiality has always been a concern in secret operation. In this thesis, we consider the situation of legitimate data request and transfer between investigator and database owner who provides intelligence, where the identity of the investigation subject and the records in the database are both confidential. Current practice of secret investigation solely relies on the integrity and carefulness of the involved individuals to resist data leakage, but regulations, policy, agreement, such human means cannot give a promising solution, thus a technical means is needed. As appropriate solution for this confidential data request and transfer problem cannot be found from related research, our goal is to offer a means that can help keeping the investigation secret and protecting irrelevant data at the same time.
We present a technical solution for preserving two-way confidentiality between the investigator (legitimate data requester) and the database owner (legitimate data holder), which can accommodate the concerns of both sides during the specific information request and transfer. Two schemes, Sender-Based Scheme and Receiver-Based Scheme, have been proposed to solve the problem under different conditions, and illustration of executing our schemes is given through an example situation “Investigator and Private hospital” which is an ordinary scenario during investigation. Furthermore, a practical cost reduction methodology on the schemes and sensible proposals for extensions are suggested and discussed. The direction of future work is also considered.published_or_final_version
Computer Science
Master
Master of Philosophy
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Kanai, Rieko. "Case study: Applied Digital Solutions I3 services platform." CSUSB ScholarWorks, 2001. https://scholarworks.lib.csusb.edu/etd-project/1734.
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The purpose of this project is to analyze whether i3 Strategy of Applied Digital Solutions (ADS) was necessary to meet the fast-moving IT industry. i3 Services Strategy is an integrated corporate strategy to reengineer the organizational structure of ADS.
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Oakes, Matthew. "Attention driven solutions for robust digital watermarking within media." Thesis, University of Sheffield, 2014. http://etheses.whiterose.ac.uk/7129/.
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As digital technologies have dramatically expanded within the last decade, content recognition now plays a major role within the control of media. Of the current recent systems available, digital watermarking provides a robust maintainable solution to enhance media security. The two main properties of digital watermarking, imperceptibility and robustness, are complimentary to each other but by employing visual attention based mechanisms within the watermarking framework, highly robust watermarking solutions are obtainable while also maintaining high media quality. This thesis firstly provides suitable bottom-up saliency models for raw image and video. The image and video saliency algorithms are estimated directly from within the wavelet domain for enhanced compatibility with the watermarking framework. By combining colour, orientation and intensity contrasts for the image model and globally compensated object motion in the video model, novel wavelet-based visual saliency algorithms are provided. The work extends these saliency models into a unique visual attention-based watermarking scheme by increasing the watermark weighting parameter within visually uninteresting regions. An increased watermark robustness, up to 40%, against various filtering attacks, JPEG2000 and H.264/AVC compression is obtained while maintaining the media quality, verified by various objective and subjective evaluation tools. As most video sequences are stored in an encoded format, this thesis studies watermarking schemes within the compressed domain. Firstly, the work provides a compressed domain saliency model formulated directly within the HEVC codec, utilizing various coding decisions such as block partition size, residual magnitude, intra frame angular prediction mode and motion vector difference magnitude. Large computational savings, of 50% or greater, are obtained compared with existing methodologies, as the saliency maps are generated from partially decoded bitstreams. Finally, the saliency maps formulated within the compressed HEVC domain are studied within the watermarking framework. A joint encoder and a frame domain watermarking scheme are both proposed by embedding data into the quantised transform residual data or wavelet coefficients, respectively, which exhibit low visual salience.
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Yan, Hugo S. M. Massachusetts Institute of Technology. "Opportunities for augmenting elder care business models with digital solutions." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/117937.
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Thesis: S.M. in Management Studies, Massachusetts Institute of Technology, Sloan School of Management, 2018.Cataloged from PDF version of thesis.
Includes bibliographical references (pages 39-40).
As the population ages and people live longer, the demand for elder care is growing. Families want affordable options that will keep their loved ones safe, healthy, and happy. To this end there are many business opportunities, especially those that use new technology to create innovative solutions for providing consistent, high quality care that's financially efficient for the client and lucrative for the provider. The purpose of this paper is to provide readers with an overview of several current and future business opportunities in elder care. To determine where these opportunities may lie, the author reviewed and compared data from eight U.S-focused companies to provide an overview of the scope and variation in elder care businesses, with an emphasis on the bottom line. These organizations range from those that provide assisted living options, homecare options, new technology, and a combination of the above. Both challenges and opportunities are discussed. This is designed to provide an introduction to the topic; those who are interested in starting their own elder care business or investing in one are encouraged to pursue more indepth research. However, those new to the industry will find this is a great place to start and will appreciate the time and effort it will save them in making their initial decisions. At the end of this study, the author provides his recommendations for elder care investing as well as the model he would develop if he were to start his own business.
by Hugo Yan.
S.M. in Management Studies
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Tenhunen, A. (Anna). "Digital marketing plan for VTT’s conventional and renewable energy solutions." Master's thesis, University of Oulu, 2017. http://urn.fi/URN:NBN:fi:oulu-201701111038.
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Social media has an integral role in today’s businesses due to the rapid development of the internet and digitalization. Still, businesses do not fully utilize the potential of social media and majority of companies do not have a digital marketing plan. Strong social media profiles facilitate a platform to showcase the expertise and research facilities, and strong, active social media profiles do better in search engines. Social media profiles can also be used for starting discussions on related topics or participating in them by writing as administrator. The fundamental purpose of the social media profiles on different sites is to drive traffic to companies’ sites and create leads.
This master’s thesis was commissioned by VTT’s Renewable Energy Processes team. The goal was to produce a digital marketing plan to enhance customer and project acquisitioning by utilizing social media (LinkedIn, Facebook, Twitter). In this thesis, the creation process of a digital marketing plan was studied especially from the perspective of VTT’s Renewable Energy Processes. The most important social media channels for the team were determined, energy solutions based on their expertise were studied, and a plan was conducted from the perspectives of the organization and employees. In addition, a questionnaire was sent out to the employees of VTT’s Solutions for Natural Resources and Environment organization. The purpose of the questionnaire was to gain an understanding of possible limitations and barriers for using social media professionally. In addition, it was used to map out the social media sites employees were already active at as well as what sites they might be interested in.
The formed digital marketing plan includes strategies for social media and content marketing. A digital marketing plan was produced based on a mission statement, reviewing resources and defining target audience. An important part of the plan was to analyze companies’ as well as competitors’ current social media presence. For the social media marketing plan, sites were chosen and site specific plans were created. A content marketing plan was made to facilitate the creation and curation of content. The content marketing plan was an integrate part of the digital marketing plan as the most common problem is creating captivating content continuously.
A trial social media profile was created in Facebook under the name VTTEnergySolutions. The profile was created in the beginning phase of this thesis and it was studied for the duration of approximately 5 months in 2016, from July to November. Based on the analysis, the reachability of a post could be increased by sharing it further to different discussion groups. There was also an interesting correlation between energy related events and increase in site traffic.
The produced digital marketing plan is aligned with VTT’s new strategy. It focuses on utilizing the expertise of the employees, the VTTPeople, and increasing impact through creating and sharing content in the appropriate social media sites. Currently, the most important social media sites for the organization to be active in are LinkedIn, Facebook and Twitter. These are the chosen sites for Renewable Energy Processes to begin their social media activities at.
Based on the results obtained in this thesis, the VTT’s official social media profiles in these social media sites will be utilized in the future according to the suggestions presented in the digital marketing plan. A Showcase page in LinkedIn under VTT’s company page will be the platform for publishing content. The efficient use of current VTT related hashtags encouraged to create a new hashtag: #VTTEnergy. This new hashtag plays a key role in the strategy for Twitter. The trial social media profile VTTEnergySolutions in Facebook will be continued and other energy related teams will be sought out to share administrative responsibilities. An editorial calendar created in Outlook to assist the team to plan, produce and manage the contents.
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Höpfl, Wolfgang. "Measurement of normal stress in polymer solutions via digital image analysis." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0033/NQ65459.pdf.
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Hopfl, Wolfgang. "Measurement of normal stress in polymer solutions via digital image analysis." Thesis, University of New Brunswick, 2000. http://hdl.handle.net/1882/399.
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Urbina, Salinas Diego Javier, and Gallart Andrés Penagos. "Modelo de negocio para validar el emprendimiento de un sistema inmobiliario de soluciones digitales para el agente inmobiliario certificado." Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2019. http://hdl.handle.net/10757/651787.
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En la actualidad, los agentes inmobiliarios certificados necesitan de herramientas tecnológicas que potencien sus actividades del día a día para lograr sus objetivos de forma más rápida y constante. Sin embargo, las herramientas que existen presentan deficiencias. En cuanto al primero, se encontró que las herramientas que existen son caras de forma mensual, es decir, sólo un CRM bordea los 50 dólares, el cual sólo te ayuda a organizar tus actividades; sin embargo, si se desea otros servicios tienen que seguir abonando mucho más dinero. Además, de la desorganización que genera debido a que tienen información por todos los lados y es difícil poder llevar un control exacto al estar en diversas plataformas.
Por estas razonas nace Red360, la cual consiste en la creación de una plataforma web moderna, interactiva y amigable para los agentes inmobiliarios certificados, donde se les brinda todas las soluciones digitales que les va a permitir conseguir mayores y mejores oportunidades de venta, eficiencia y eficacia en la gestión inmobiliaria, crecimiento profesional y todo bajo un sistema seguro y confiable.
La validación se dividió en dos fases. La primera se enfocó en validar la existencia del problema y el interés de los agentes. En la segunda etapa, se validó la intención de compra por medio de reuniones comerciales y experimentos donde los usuarios hacían uso del servicio. De esta manera, consideramos que este proyecto tiene un gran potencial de crecimiento y esto se evidencia con nuestros resultados financieros y la aceptación del servicio.Today, certified real estate agents need technological tools that enhance their day-to-day activities to achieve their goals faster and more consistently. However, existing tools have deficiencies. As for the first, it was found that the tools that exist are expensive on a monthly basis, that is, only a CRM borders 50 dollars, which only helps you organize your activities; However, if you want other services you have to keep paying a lot more money. In addition, the disorganization it generates because they have information on all sides and it is difficult to keep an exact control when being on different platforms. For these reasons born Red360, which consists in the creation of a modern, interactive and friendly web platform for certified real estate agents, where they are offered all the digital solutions that will allow them to achieve better and more opportunities for sale, efficiency and efficiency in real estate management, professional growth and all under a safe and reliable system. Validation was divided into two phases. The first, focused on validating the existence of the problem and the interest of the agents. In the second step, the purchase intent was validated through business meetings and experiments where users made use of the service. We believe that this project has great growth potential and this is evidenced by our financial results and acceptance of the service.
Trabajo de investigación
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Hollis, Timothy M. "Circuit and modeling solutions for high-speed chip-to-chip communication /." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd1721.pdf.
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Wahler, Matthias, and Thomas Sendelbach. "Model based engineering for electro-hydraulic solutions." Technische Universität Dresden, 2020. https://tud.qucosa.de/id/qucosa%3A71232.
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This paper will give an overview about the technological change in Industrial Hydraulics and the impact of the Digital Twin on the related new engineering processes and methods in order to overcome the challenges coming out of that technology change. Simulation models will more and more become a decisive factor for the engineering process. The Digital Twin will be a window of opportunity for innovations and a technology push for the engineering process and the products in the Industrial Hydraulics.
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Roth, Marcel. "Analysis of digital health solutions and the most significant challenges for rural areas." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279430.
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The problem of insufficient healthcare is particularly noticeable in rural regions. Despite this, there is still little research on the digital transformation of healthcare in rural areas. This thesis aims to bridge the gap between the two research fields of "digital health” and “rural development” to find out the most significant challenges for rural areas when implementing and using digital health solutions. "Rural areas" in this work are referring to areas with low population density and small settlements in the industrialised EU countries. First of all, a “Digital Health Ecosystem” was developed based on a research review, which served as an overview of the most important factors and stakeholders regarding digital health in general. The “Digital Health Ecosystem” was used as part of the qualitative research method and interview guide to identify the challenges in transferring the overview to rural areas. An interview study was conducted with eight experts from the field of digital health with different backgrounds like technology, economics, social sciences, healthcare systems and smart village. The results show that digital health in general involves many barriers, which also apply to rural areas. The specific challenges for rural areas could be divided into four main categories: broadband and mobile networks; structural barriers; digital acceptance & competence; rural innovation. The findings reveal that the smart village concept and rural initiatives are still in their early stages and digital strategies and networks will have to spread more widely across the entire countries. Furthermore, services must be better targeted to the specific problems of rural communities. In particular, because the need for digital health solutions is very great in rural areas, where they can counteract problems like lack of healthcare providers and poor healthcare. In this context, all the general and specific challenges should not be considered separately, because the complexity of the ecosystem can only be understood by connecting all the different fields of action.Problemet med otillräcklig sjukvård märks särskilt på landsbygden. Trots detta finns det fortfarande lite forskning om den digitala omvandlingen av sjukvården på landsbygden. Denna rapport syftar till att överbrygga klyftan mellan de två forskningsområdena "digital health" och "rural development" för att ta reda på de viktigaste utmaningarna för landsbygden när de implementerar och använder digitala hälsolösningar. "Landsbygdsområden" avser i detta arbete områden med låg befolkningstäthet och små bosättningar i de industrialiserade EU-länderna. Till att börja med byggdes ett ramverk, “Digital Health Ecosystem”, baserat på en forskningsöversikt. Detta ramverk fungerade som en översikt över de viktigaste faktorerna och intressenterna beträffande digital hälsa i allmänhet. ”Digital Health Ecosystem” användes som en del av den kvalitativa forskningsmetoden och intervjuguiden för att identifiera utmaningarna i överföringen av översikten till landsbygden. En intervjustudie genomfördes med åtta experter inom området digital hälsa med olika bakgrunder som teknik, ekonomi, samhällsvetenskap, hälsovårdssystem och smart by. Resultaten visar att det finns många hinder för digital hälsa i allmänhet, som också gäller för landsbygden. De specifika utmaningarna för landsbygden kan delas in i fyra huvudkategorier: bredbands- och mobilnät; strukturella hinder; digital acceptans & kompetens; landsbygdens innovation. Resultaten visar att det smarta landsbygder och andra typer av liknande initiativ i rurala områden fortfarande befinner sig i sina tidiga stadier och att digitala strategier och nätverk måste spridas mer över hela länderna. Dessutom måste tjänsterna riktas bättre mot de specifika problemen i landsbygdssamhällen. I synnerhet eftersom behovet av digitala sjukvårdslösningar är mycket stort på landsbygden, där de kan motverka problem som brist på vårdgivare och dålig sjukvård. I detta sammanhang bör alla allmänna och specifika utmaningar inte beaktas separat, eftersom ekosystemets komplexitet bara kan förstås genom att koppla samman alla olika handlingsfält.
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Liljeqvist, Maria, and Jessica Hillyer. "Recovery in a digitalized world : An inductive qualitative case study on employers’ and employees’ perceptions of digital solutions to promote recovery." Thesis, Jönköping University, Högskolan för lärande och kommunikation, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-48846.
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Recovery from work is crucial for health and well-being, and organizations have an obligation to enable employee recovery. Organizations can promote employee recovery by implementing strategies and thus reach sustainable development. In 2020, organizations exist in a digitalized world, which has expedited the need to implement digital solutions and use them for processes. Encouraging and fostering recovery are central elements in promoting recovery and digital solutions could help with both elements.The usage of digital solutions include how digital solutions are used and how they could be used. There is no previous research on digital solutions, recovery promotion and usage, so we define our research phenomenon as the usage of digital solutions to promote recovery. We identify our research gap in the connection of recovery and digital solutions in an organizational context. By describing the research phenomenon, we can fill this research gap and thus add to the existing literature on organizational health and well-being. The purpose of this research is to describe organizations’ usage of digital solutions to promote recovery.By performing an inductive qualitative case study, we collect data by performing a documentation review and online surveys. We find that mobile applications, virtual assistants, activity trackers, virtual reality and smart electric bicycles can be used to promote recovery. We also find a favorable context for both recovery and for digital solutions to promote recovery. Further, we see potential for using the identified digital solutions to promote recovery. We conclude that strategy implementation consisting of digital solutions to promote recovery in organizations will lead to a higher level of healthy workforce.Återhämtning från arbetet är centralt för hälsa och välmående och organisationer har en skyldighet att möjliggöra anställdas återhämtning. Organisationer kan främja anställdas återhämtning genom att implementera strategier och på så sätt nå hållbar utveckling. År 2020 existerar organisationer i en digitaliserad värld, vilken har påskyndat behovet av att implementera digitala lösningar och använda dem för processer. Att uppmuntra och stödja återhämtning är centrala delar i att främja återhämtning och digitala lösningar kan hjälpa båda delar.Användningen av digitala lösningar inkluderar hur digitala lösningar används och hur de kan användas. Det finns ingen tidigare forskning om digitala lösningar, att främja återhämtning och användning, så vi definierar vårt forskningsfenomen som användningen av digitala lösningar för att främja återhämtning. Vi identifierar vårt forskningsgap i kopplingen av återhämtning och digitala lösningar i en organisatorisk kontext. Genom att beskriva forskningsfenomenet kan vi fylla detta forskningsgap och därmed addera till den befintliga litteraturen om organisatorisk hälsa och välmående. Syftet med denna forskning är att beskriva organisationers användning av digitala lösningar för att främja återhämtning.Genom att utföra en induktiv kvalitativ fallstudie samlar vi in data genom att utföra en dokumentinsamling och enkätundersökningar online. Vi finner att mobilapplikationer, virtuella assistenter, aktivitetsmätare, virtual reality och smarta el-cyklar kan användas för att främja återhämtning. Vi finner också en gynnsam kontext för både återhämtning och för digitala lösningar för att främja återhämtning. Vidare ser vi potential för att använda de identifierade digitala lösningarna för att främja återhämtning. Vi drar slutsatsen att strategiimplementering bestående av digitala lösningar för att främja återhämtning i organisationer kommer att leda till en högre nivå av hälsosam arbetskraft.
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Palomino, Daniel Munari Vilchez. "Application-driven temparature-aware solutions for video coding." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/158186.
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Esta tese apresenta soluções para o gerenciamento e otimização de temperatura para sistemas de codificação de vídeo baseados nas características da aplicação e no conteúdo dos vídeos digitais. Diferente dos trabalhos estado-da-arte, as soluções propostas nesta tese focam em técnicas de gerenciamento de temperatura no nível da aplicação e características da aplicação codificação de vídeo e as propriedades dos vídeos digitais são explorados para desenvolver soluções termais para a codificação de vídeo com baixas perdas na qualidade de serviço das aplicações. Diversas análises são realizadas considerando a aplicação de codificação de vídeo para entender o comportamento da temperatura durante o processo de codificação para diferentes sequências de vídeo. Com base nos resultados das análises, soluções com diferentes abordagens são propostas para atenuar os efeitos da temperatura nos sistemas de codificação de vídeo. Gerenciamento de temperatura baseado nas características da aplicação para o padrão de codificação HEVC usa uma técnica de seleção de configuração em tempo de execução para manter a temperatura abaixo dos limites seguros de operação com bons resultados de qualidade de vídeo. Otimização de temperatura baseado em computação imprecisa usa aproximações baseadas em conteúdo para reduzir a temperatura de chips executando o HEVC. Um escalonador de tarefas que usa características da aplicação para guiar o escalonamento de threads focando na redução dos gradientes espaciais de temperatura que são resultantes do desbalanceamento natural de cargas entre as threads da aplicação. As soluções propostas são capazes de reduzir em até 10 ºC a temperatura do chip com perdas insignificantes na eficiência de compressão. Os resultados de qualidade objetiva (medida usando PSNR) são de 12 dBs até 20 dBs maiores quando comparados com trabalhos da literatura. Além disso, o escalonador de tarefas proposto é capaz de eliminar os gradientes espaciais de temperatura maiores que 5 ºC para arquitetura multi-cores. Como principal conclusão, esta tese demonstra que as técnicas de gerenciamento de temperatura que usam o conhecimento da aplicação de maneira conjunta com as propriedades dos vídeos digitais tem um alto potencial para melhorar os resultados de temperatura de sistemas de codificação de vídeo mantendo bons resultados de qualidade visual dos vídeos codificados.This thesis presents application-driven temperature-aware solutions for next generation video coding systems, such as the High Efficiency Video Coding (HEVC). Different from state-of-the-art works, the proposed solutions raise the abstraction of temperature management to the application-level, where video coding characteristics and video content properties are used to leverage thermal-aware solutions for video coding with low QoS (Quality of Service) degradation. Several video coding and temperature analyses are performed to understand the behavior of temperature when encoding different video sequences. Based on the analyses results, different approaches are proposed to mitigate the temperature effects on video coding systems. Application-driven temperature management for HEVC uses run-time encoder configuration selection to keep temperature under safe operational state while providing good visual quality results. Temperature optimization using approximate computing uses content-driven approximations to reduce the on-chip temperature of HEVC encoding. Application-driven temperature-aware scheduler leverages application-specific knowledge to guide a scheduling technique targeting reducing the spatial temperature gradients that are resulted from the unbalance workload nature of multi-threaded video coding application. The proposed solutions are able to provide up to 10 °C of chip temperature reduction with negligible compression efficiency loss. Besides, when compared with previous works the resulted objective video quality (PSNR) is from 12 dB up to 20 dB higher. Moreover, the proposed scheduler eliminates spatial temperature gradients greater than 5 ºC of multi-core architectures. As conclusion, this thesis demonstrates that leveraging application-specific knowledge and video content properties has a significant potential to improve temperature profiles of video coding systems while still keeping good quality results.
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Ngo, Benjamin Bin-yong Carleton University Dissertation Engineering Electrical. "Applications of matrix-analytic solutions to queueing systems arising in integrated services digital network." Ottawa, 1990.
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BM, Khalid, and Priyanka Pulikanti Rani. "Impact of COVID-19 on pharmaceuticals industry to adapt digital marketing." Thesis, Högskolan i Gävle, Avdelningen för ekonomi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-35234.
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This master thesis was prompted by the overall interest in Digital marketing that has been growing since the last decade. During this pandemic time, we are interested to know about the impact of COVID-19 on pharmaceutical industry. Most of the articles and the reports in the early stage were mainly about the concept of digital marketing, technology, implementation in day-to-day business. Lesser studies have been conducted keeping the pandemic in view. Covid-19 is the most influencing topic today around the world and because of this, digital marketing has become the important marketing strategy for every business to withstand in the market. We have chosen to work with the pharmaceutical company in an emerging country India to study the impact of Covid-19 on the pharmaceutical industry and how the industry is adapting digital marketing as their marketing strategy. The empirical study is designed as a qualitative method. We had conducted the interview with the employees of the marketing department, used digital marketing concepts from different literature, and applied to our study. We have also explained the selected methodology to answer our research questions. Our findings from the research have shown that digital marketing is the most effective marketing strategy for almost all businesses during this lockdown. The company we worked is believing that digital marketing has a long-run result. We had discussed about the marketing challenges faced by the pharmaceutical companies during pandemic, challenges of adopting digital transformation, strategies followed by the company to sustain customer loyalty by following the aspects of relationship marketing. Our research also focused to know about the solutions to overcome the challenges faced by the pharmaceutical companies.
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Bergström, Angelica, and Eva Sjögreen. "”Man kan ju inte förenkla ett sammanhang” : En kvalitativ studie om socialarbetares erfarenheter av viktiga aspekter i känsliga samtal med barn." Thesis, Södertörns högskola, Institutionen för samhällsvetenskaper, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-41109.
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I denna uppsats undersöks viktiga aspekter i känsliga samtal med barn och hur socialarbetare kan skapa förutsättningar för ett fungerande samtal. Uppsatsen är en del av en pilotstudie vars övergripande syfte är att framställa digitala lösningar för socionomstudenter att öva på inför känsliga samtal med barn. Uppsatsen bygger på kvalitativa intervjuer och utifrån dess syfte och frågeställningar har vi använt oss av grundad teori som metodval. Den grundade genomförda analysen resulterade i kategorierna 1) känslomässig hantering för ett professionellt bemötande, 2) flexibilitet och följsamhet, 3) samtalsmetoder och 4) sammanhangsmarkering. De slutsatser som dragits är att den som håller i samtalet behöver besitta förmågor som att kunna lyssna aktivt, härbärgera andras känslor och vara flexibel. Att vara flexibel innebär att vara följsam gentemot barnet såväl som att vara flexibel gällande samtalsmetoder och anpassa detta efter varje enskilt barn. Därutöver dras slutsatsen att en sammanhangsmarkering är viktigt för barnet att få före, under och efter samtalen. En sammanhangsmarkering är även viktig för att kunna bemästra att hålla i känsliga samtal med barn, vilket vi menar på att digitala lösningar för att öva på samtal kan vara ett bra verktyg för blivande socialarbetare som kommer att jobba med barn.This paper aims to examine important aspects in sensitive conversations with children and how social workers can manage to create prerequisites to make the conversations work out in a functional way. The paper is a part of a pilot study which aims to create digital solutions for social work students to practice sensitive conversations with children in a digital environment. Our study is based on qualitative interviews and the methodology used for analysis is constructivist grounded theory. The analysis has resulted in the core categories 1) emotional management to achieve a professional approach, 2) flexibility and adaptability, 3) conversational methods and 4) context markers. The result shows that the professional who is leading the conversation needs to be able to practice active listening, to harbor other peoples (the children) feelings and to be flexible. To be flexible means to be able to adopt the approach to every individual child, but also to be adjustable towards what conversational methods to be used, so that every individual’s need can be met. In conclusion, it is important in the treatment of a child to mark out the context of the conversation and situation for the child before, during and after the conversation. To mark out the context of the conversation is also important for the social worker to be able to master the conversation. Using digital solutions in order to practice on sensitive conversations can be an effective tool to build up context markers for the social worker and therefore get more comfortable to lead difficult conversations.
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Hollis, Timothy Mowry. "Circuit and Modeling Solutions for High-Speed Chip-to-Chip Communication." BYU ScholarsArchive, 2007. https://scholarsarchive.byu.edu/etd/1067.
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This dissertation presents methods for modeling and mitigating voltage noise and timing jitter across high-speed chip-to-chip interconnects. Channel equalization and associated tuning schemes have been developed to target the distinct characteristics and signal degradation exhibited in the clock and data signals of multi-Gigabit/second digital communication links. Multiple methods for generating realistically degraded signals for the purpose of simulation are also presented and used to verify the proposed equalization and filtering topologies. Specifically, a new technique for modeling high-speed jittery clocks in the frequency domain is presented and shown to reduce transient simulation time and memory requirements, while simultaneously improving the timing resolution and accuracy of the simulation by minimizing the dependence on the transient simulation time-step. The technique is further developed to provide unprecedented control over the timing characteristics of the generated signals, and is then extended to the generation of random data signals with definable jitter statistics. Through these techniques,realistic clock and data waveforms are constructible, providing for the visualization of the combined effects of voltage and timing degradation, while at the same time tracking the phase relationship between the clock and data signals as they pass across their respective channels and through the receiving circuitry of the communication link. New methods for the automated tuning of second-order continuous-time channel equalizers are proposed based on the simulated or measured single pulse and double pulse responses of the transmission channel. Using only one degree of freedom, the methods target the reduction of inter-symbol interference (ISI) as identified in the single and double pulses. Through tuning either the circuit quality factor (Q), the peaking frequency, or the frequency zero, the methods are shown to adapt to a variety of channel lengths and datarates from the same original equalizer transfer function, implying a good degree of generality, while offering a simple, yet effective, method for ISI reduction. Finally, the design of an active 5 Gigahertz (GHz) bandpass filter, employed for high-speed clock conditioning, is presented and shown to address both random and deterministic components of the clock signal degradation. The bandpass transfer function is achieved through a combination of AC coupling and a resonant LC tank consisting of on-chip interleaved spiral inductors and a tunable capacitor array. Through adjusting the load capacitance in parallel with the inductors, the center frequency of the filter is tunable over a range of nearly 5GHz. The design targets a supply voltage of 1.2 volts and draws approximately 5.7 milliamps of current.
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Alm, Christoffer, and Gustav Dahlgren. "Value creation through digital solutions in the energy industry : A case study at Skellefteå Kraft AB." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-69082.
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Purpose – The purpose of this master thesis is to gain a better understanding of how value creation can be achieved with digital solutions in the energy industry. More specifically, this research aims to increase the understanding of factors that affect customer value in form of exploring the customers’ digital wants and needs. Method – This master thesis uses a combination of exploratory and descriptive approach which is based on qualitative data gathered from semi-structured interviews with area experts and focus groups with customers. In this study three area experts and four focus groups were included. The gathered data were analyzed through an abductive analysis approach and a thematic coding. Findings – The research found three main findings that energy company’s need to take into consideration. The first is that the energy industry needs to simplify the energy concept since customers’ state that the industry is too complex at the moment. Second is that value creation can be achieved in form of a superior mobile application where customers’ have the ability to follow their consumption and can gain improved customer care. The last main finding from this study show that there may be a lot of changes in the energy industry in the future, which entails many possibilities for energy companies to improve customer value. Recommendations – The recommendations from this study is that energy companies need to address that the driving force to buy in the energy industry is that customers want to like their energy company. The energy industry must change their focus and provide marketing strategies that are appealing to the customers’ emotions. Companies in the energy industry also need to deal with the increasing digitalization that is affecting society everywhere. The development of a great mobile application will improve a lot of things for the customers such as making their consumption controllable and easier to grasp, which will make them more satisfied. It is also recommended that energy companies in Sweden unite and together make a proposition to the EU to drop the regulations on electricity charges in order to unlock energy companies’ ability to make energy subscription customer friendly. Research contribution – This master thesis contributes to the three dimensions that customer value derived from, in the energy industry digital solutions affect functional and emotional value but has low impact on social value. It also occurred that simplicity, control, better information and customers’ buy with their heart are key factors that contributes to customer value in the industry, which contributes to both theoretical and practical. Digitalization are also moving fast in the energy industry which companies need to embrace right away and take action to not fall behind. Paper type – Master thesis
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Xing, Hanqing. "Fully digital-compatible built-in self-test solutions to linearity testing of embedded mixed-signal functions." [Ames, Iowa : Iowa State University], 2008.
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Kjellson, Angelica. "Sound Source Localization and Beamforming for Teleconferencing Solutions." Thesis, Umeå universitet, Institutionen för matematik och matematisk statistik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-89707.
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In teleconferencing the audio quality is key to conducting successful meetings. The conference room setting imposes various challenges on the speech signal processing, such as noise and interfering signals, reverberation, or participants positioned far from the telephone unit. This work aims at improving the received speech signal of a conference telephone by implementing sound source localization and beamforming. The implemented microphone array signal processing techniques are compared to the performance of an existing multi-microphone solution and evaluated under various conditions using a planar uniform circular array. Recordings of test-sequences for the evaluation were performed using a custom-built array mockup. The implemented algorithms did not show good enough performance to motivate the increased computational complexity compared to the existing solution. Moreover, an increase in number of microphones used was concluded to have little or no effect on the performance of the methods. The type of microphone used was, however, concluded to have impact on the performance and a subjective listening evaluation indicated a preference for omnidirectional microphones which is recommended to investigate further.God ljudkvalitet är en grundsten för lyckade telefonmöten. Miljön i ett konferens-rum medför ett flertal olika utmaningar för behandlingen av mikrofonsignalerna: det kan t.ex. vara brus och störningar, eller att den som talar befinner sig långt från telefonen. Målet med detta arbete är att förbättra den talsignal som tas upp av en konferenstelefon genom att implementera lösningar för lokalisering av talaren och riktad ljudupptagning med hjälp av ett flertal mikrofoner. De implementerade metoderna jämförs med en befintlig lösning och utvärderas under olika brusscenarion för en likformig cirkulär mikrofonkonstellation. För utvärderingen användes testsignaler som spelades in med en specialbyggd enhet. De implementerade algoritmerna kunde inte uppvisa en tillräcklig förbättring i jämförelse med den befintliga lösningen för att motivera den ökade beräkningskomplexitet de skulle medföra. Dessutom konstaterades att en fördubbling av antalet mikrofoner gav liten eller ingen förbättring på metoderna. Vilken typ av mikrofon som användes konstaterades däremot påverka resultatet och en subjektiv utvärdering indikerade en preferens för de rundupptagande mikrofonerna, en skillnad som föreslås undersökas vidare.
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Nguyen, Trung-Hiên. "Theoretical and experimental study of optical solutions for analog-to-digital conversion of high bit-rate signals." Thesis, Rennes 1, 2015. http://www.theses.fr/2015REN1S110/document.
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Les formats de modulation bidimensionnels (i.e. basés sur l’amplitude et la phase de l’onde porteuse) ont gagné depuis peu le domaine des transmissions par fibre optique grâce aux progrès conjoints de l’électronique rapide et du traitement du signal, indispensables pour réaliser les récepteurs opto-électroniques utilisant la détection cohérente des signaux optiques. Pour pallier les limites actuelles en rapidité de commutation des circuits intégrés électroniques, une voie de recherche a été ouverte il y a quelques années, consistant à utiliser des technologies optiques pour faciliter la parallélisation du traitement du signal, notamment dans l’étape d’échantillonnage ultra-rapide du signal rendu possible par des horloges optiques très performantes. Le thème principal de cette thèse concerne l’étude théorique et expérimentale de la fonction de conversion analogique-numérique (ADC) de signaux optiques par un récepteur opto-électronique cohérent, associant les étapes d’échantillonnage optique linéaire, de conversion analogique-numérique et de traitement du signal. Un prototype, utilisant une solution originale pour la source d’échantillonnage, est modélisé, réalisé et caractérisé, permettant la reconstruction temporelle de signaux optiques modulés selon divers formats : NRZ, QPSK, 16-QAM. Les limitations optiques et électroniques du système sont analysées, notamment l’impact sur la reconstruction des signaux de divers paramètres : le taux d’extinction de la source optique, les paramètres de l’ADC (bande passante BW, temps d’intégration et nombre effectif de bits ENOB). Par ailleurs, de nouveaux algorithmes de traitement du signal sont proposés dans le cadre de la transmission optique cohérente à haut débit utilisant des formats de modulation bidimensionnels (amplitude et phase) : deux solutions sont proposées pour la compensation du déséquilibre de quadrature IQ dans les transmissions mono-porteuses: une méthode originale de l’estimation du maximum du rapport signal sur bruit ainsi qu’une nouvelle structure de compensation et d’égalisation conjointes; ces deux méthodes sont validées expérimentalement et numériquement avec un signal 16-QAM. Par ailleurs, une solution améliorée de récupération de porteuse (décalage de fréquence et estimation de la phase), basée sur une décomposition harmonique circulaire de la fonction de maximum de vraisemblance logarithmique, est validée numériquement pour la première fois dans le contexte des transmissions optiques (jusqu’à une modulation de 128-QAM). Enfin les outils développés dans ce travail ont finalement permis la démonstration d’une transmission sur 100 km d’un signal QPSK à 10 Gbaud fortement limité par un bruit de phase non linéaire et régénéré optiquement à l’aide d’un limiteur de puissance préservant la phase basé sur une nanocavité de cristal photoniqueBi-dimensional modulation formats based on amplitude and phase signal modulation, are now commonly used in optical communications thanks to breakthroughs in the field of electronic and digital signal processing (DSP) required in coherent optical receivers. Photonic solutions could compensate for nowadays limitations of electrical circuits bandwidth by facilitating the signal processing parallelization. Photonic is particularly interesting for signal sampling thanks to available stable optical clocks. The heart of the present work concerns analog-to-digital conversion (ADC) as a key element in coherent detection. A prototype of linear optical sampling using an original solution for the optical sampling source, is built and validated with the successful equivalent time reconstruction of NRZ, QPSK and 16-QAM signals. Some optical and electrical limitations of the system are experimentally and numerically analyzed, notably the extinction ratio of the optical source or the ADC parameters (bandwidth, integration time, effective number of bits ENOB). Moreover, some new DSPs tools are developed for optical transmission using bi-dimensional modulation formats (amplitude and phase). Two solutions are proposed for IQ quadrature imbalance compensation in single carrier optical coherent transmission: an original method of maximum signal-to-noise ratio estimation (MSEM) and a new structure for joint compensation and equalization; these methods are experimentally and numerically validated with 16-QAM signals. Moreover, an improved solution for carrier recovery (frequency offset and phase estimation) based on a circular harmonic expansion of a maximum loglikelihood function is studied for the first time in the context of optical telecommunications. This solution which can operate with any kind of bi-dimensional modulation format signal is numerically validated up to 128-QAM. All the DSP tools developed in this work are finally used in a demonstration of a 10 Gbaud QPSK 100 km transmission experiment, featuring a strong non-linear phase noise limitation and regenerated using a phase preserving and power limiting function based on a photonic crystal nanocavity
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Papangelis, Konstantinos. "User driven design of real time passenger information solutions for supporting rural passengers in the context of disruption." Thesis, University of Aberdeen, 2015. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=228210.
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Rural communities face a range of challenges associated with accessibility and connectivity. Though real-time passenger information systems (RTPIS) have been long heralded as offering the potential to mitigate some of these challenges their deployment in rural areas has been very limited. The lack of real-time passenger information has been identified as a contributing factor to a multitude of issues, such as high car usage, low public transport use and travel uncertainty. There is considerable potential for appropriate technologies to contribute to the alleviation of these issues, as evidence exists that they can influence travel behaviour, and cultivate positive attitudes towards the service and the operator. This thesis investigated the interplay between rural passenger experience and real-time information provision. Overall, this work aims to provide an initial stepping point on to understanding the interplay between passenger behaviour, disruptions, passenger experience, and real-time information. In order to explore the aforementioned, first, a series of interviews and focus groups with rural public transport passengers, rural transport operators, government agencies and members of academia have been carried out to study the rural passengers' responses to planned and unplanned travel disruption. Based on these i) a conceptual model that aims to describe the passenger recovery phases to disruption and the associated passenger information requirements, ii) and a framework that highlights characteristics of transport behaviour, and aligns them with drivers of transport behaviour adaptation have been created. Next, through a series of co-designed sessions in various rural areas throughout the UK a mobile technology probe, which provides public transport real time information to the passengers has been developed. Then using the technology probe a two-week before-and-after intervention study with 15 participants has been carried out. The results indicate that real-time information provided through the technology probe adjusted the travel behaviour of the participants. Namely, it improved the utilisation of waiting time of the participants, improved the efficiency of their travelling, and enabled them to find alternatives when needed. Further, to get a better picture of the effect of real-time information on rural travellers, during the intervention study 6 of the participants in their everyday travels for 7 days have been actively observed by the author. The outcomes from this supplemented the data from the study and illustrated how the rural public transport travellers used the system in their day-to-day travels. Finally, all our findings have been combined to co-create a system design with rural public transport passengers that aims to improve their experience during disruption. The final design mainly concentrated on providing information regarding pre-trip, on-trip and on boarding point, journey planning, supporting the rural passenger experience through social media, and disruption. In order to evaluate the applicability and suitability of the design, and explore how it relates to the needs of the rural passengers, two focus groups have been conducted. The results of the evaluation activity illustrate that the mobile RTPI system design was perceived as highly useful and relevant to the needs of the rural passenger.
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Ziegler, Silvio. "New current sensing solutions for low-cost high-power-density digitally controlled power converters." University of Western Australia. School of Electrical, Electronic and Computer Engineering, 2009. http://theses.library.uwa.edu.au/adt-WU2010.0077.
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[Truncated abstract] This thesis studies current sensing techniques that are designed to meet the requirements for the next generation of power converters. Power converters are often standardised, so that they can be replaced with a model from another manufacturer without an expensive system redesign. For this reason, the power converter market is highly competitive and relies on cutting-edge technology, which increases power conversion efficiency and power density. High power density and conversion efficiency reduce the system cost, and thus make the power converter more attractive to the customer. Current sensing is a vital task in power converters, where the current information is required for monitoring and control purposes. In order to achieve the above-mentioned goals, existing current sensing techniques have to be improved in terms of cost, power loss and size. Simultaneously, current information needs to be increasingly available in digital form to enable digital control, and to allow the digital transmission of the current information to a centralised monitoring and control unit. All this requires the output signal of a particular current sensing technique to be acquired by an analogue-to-digital converter, and thus the output voltage of the current sensor has to be sufficiently large. This thesis thoroughly reviews contemporary current sensing techniques and identifies suitable techniques that have the potential to meet the performance requirements of the next-generation of power converters. After the review chapter, three novel current sensing techniques are proposed and investigated: 1) The usefulness of the resistive voltage drop across a copper trace, which carries the current to be measured, to detect electrical current is evaluated. Simulations and experiments confirm that this inherently lossless technique can measure high currents at reasonable measurement bandwidth, good accuracy and low cost if the sense wires are connected properly. 2) Based on the mutual inductance theory found during the investigation of the copper trace current sense method, a modification of the well-known lossless inductor current sense method is proposed and analysed. This modification involves the use of a coupled sense winding that significantly improves the frequency response. Hence, it becomes possible to accurately monitor the output current of a power converter with the benefits of being lossless, exhibiting good sensitivity and having small size. 3) A transformer based DC current sense method is developed especially for digitally controlled power converters. This method provides high accuracy, large bandwidth, electrical isolation and very low thermal drift. Overall, it achieves better performance than many contemporary available Hall Effect sensors. At the same time, the cost of this current sensor is significantly lower than that of Hall Effect current sensors. A patent application has been submitted. .... The current sensing techniques have been studied by theory, hardware experiments and simulations. In addition, the suitability of the detection techniques for mass production has been considered in order to access the ability to provide systems at low-cost.
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Herrera, Polo Pablo C. "Computational Design Solutions in architectural education: The use of script language to design complex surfaces." Universidad La Salle, 2014. http://hdl.handle.net/10757/323239.
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pablo@espaciosdigitales.orgIn this paper, the author explains why architects who know how to use scripts have an advantage over the ones who just know how to manipulate a specific software. The reason behind this affirmation is that knowing how to program frees the architect from the rules and language of the interactive software. To prove his point, the author organized two workshops where students at the school of architecture learned to use Rhinoscript. The students didn’t create a new interface, but used an existing one. They adapted the program (Rhino) to a design problem they had formulated at the beginning of the workshop. Students could have also used MaxScript (3DS Max) and MelScript (Maya).
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Culkin, Nigel. "Can a high-tech breakthrough approach deliver novel supply and demand solutions? : a study of digital cinema rollout." Thesis, University of Hertfordshire, 2017. http://hdl.handle.net/2299/19052.
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Digitalization is the process of making digital everything that can be digitised to change a business model and provide new revenue and value-producing opportunities. However, difficulties exist in evaluating the value created by digital technology investments in organisations, industry structures, economies and society, at large. My dissertation illustrates how the distinct characteristics of digital technologies are implicit in an evolution from stable to fragile product innovation; while highlighting the need for a dynamic approach to entrepreneurial innovation within national innovation systems. The foundations for my work are bound up in the digitalization of value networks, and the context for this research is digital cinema - a process that began in 2000. Digital cinema offered a new value proposition to distributors and significant cost reductions for the US studios. With a reliance on a highly developed value chain to protect intellectual property, these studios sought to learn from the disruption digitalization caused to the music industry, by cultivating digital technology as an, incremental innovation, in replacing celluloid with bytes to project content to cinema audiences. Global digital cinema penetration in 2014 stood at 90 per cent of the total screen footprint. The dissertation assesses features of this digital rollout that have been under-explored; including the role digital technology has assumed in process and product innovation; and, the behavioural responses of both incumbents and new entrants during the diffusion and adoption phase. My dissertation is supported by eight published papers, which highlight the need for domestic policymakers to focus their attention on emerging entrepreneurial innovations; the utilisation of current knowledge and strategies for novel solutions in order to strengthen their respective national innovation systems. Taken together they help explain the creation, diffusion and adoption of digital cinema, explore the new content creation opportunities they support, and explain how three nations in particular have sought to innovate and reorientate themselves in relation to these novel phenomena. The wider implications of the findings of the project build on the innovation literature in examining the diffusion, adoption and knowledge acquisition during the rollout of digital cinema technology. These findings suggest a radically different reading of both disruptive innovations and national innovation systems than has been offered in previous accounts, viewing the digital cinema rollout as a case study of an increasingly mobile sector, in which technological factors retreat in importance behind entrepreneurial innovation as a key driving force in reaching audiences. Finally, in exploring the phenomenon of the digitalization of value networks I have made a significant contribution to knowledge in the design of an innovative mixed method; specifically in the area of field research - a qualitative data collection method designed for considering, observing, and interacting with individuals in their natural environments. Over time, I have established that digital cinema was capable of delivering novel supply and demand solutions - starting with a few unrelated scraps of data, through the establishment of personal networks with communities of practice (in the UK, US & Norway) to building rich, and complex quantitative data sets capable of measuring the entire diffusion and adoption phase of the digital cinema rollout, right across Europe.
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Van, der Bijl Rinske. "Bivariate wavelet construction based on solutions of algebraic polynomial identities." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/20175.
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Thesis (PhD)--Stellenbosch University, 2012.ENGLISH ABSTRACT: Multi-resolution analysis (MRA) has become a very popular eld of mathematical study in the past two decades, being not only an area rich in applications but one that remains lled with open problems. Building on the foundation of re nability of functions, MRA seeks to lter through levels of ever-increasing detail components in data sets { a concept enticing to an age where development of digital equipment (to name but one example) needs to capture more and more information and then store this information in di erent levels of detail. Except for designing digital objects such as animation movies, one of the most recent popular research areas in which MRA is applied, is inpainting, where \lost" data (in example, a photograph) is repaired by using boundary values of the data set and \smudging" these values into the empty entries. Two main branches of application in MRA are subdivision and wavelet analysis. The former uses re nable functions to develop algorithms with which digital curves are created from a nite set of initial points as input, the resulting curves (or drawings) of which possess certain levels of smoothness (or, mathematically speaking, continuous derivatives). Wavelets on the other hand, yield lters with which certain levels of detail components (or noise) can be edited out of a data set. One of the greatest advantages when using wavelets, is that the detail data is never lost, and the user can re-insert it to the original data set by merely applying the wavelet algorithm in reverse. This opens up a wonderful application for wavelets, namely that an existent data set can be edited by inserting detail components into it that were never there, by also using such a wavelet algorithm. In the recent book by Chui and De Villiers (see [2]), algorithms for both subdivision and wavelet applications were developed without using Fourier analysis as foundation, as have been done by researchers in earlier years and which have left such algorithms unaccessible to end users such as computer programmers. The fundamental result of Chapter 9 on wavelets of [2] was that feasibility of wavelet decomposition is equivalent to the solvability of a certain set of identities consisting of Laurent polynomials, referred to as Bezout identities, and it was shown how such a system of identities can be solved in a systematic way. The work in [2] was done in the univariate case only, and it will be the purpose of this thesis to develop similar results in the bivariate case, where such a generalization is entirely non-trivial. After introducing MRA in Chapter 1, as well as discussing the re nability of functions and introducing box splines as prototype examples of functions that are re nable in the bivariate setting, our fundamental result will also be that wavelet decomposition is equivalent to solving a set of Bezout identities; this will be shown rigorously in Chapter 2. In Chapter 3, we give a set of Laurent polynomials of shortest possible length satisfying the system of Bezout identities in Chapter 2, for the particular case of the Courant hat function, which will have been introduced as a linear box spline in Chapter 1. In Chapter 4, we investigate an application of our result in Chapter 3 to bivariate interpolatory subdivision. With the view to establish a general class of wavelets corresponding to the Courant hat function, we proceed in the subsequent Chapters 5 { 8 to develop a general theory for solving the Bezout identities of Chapter 2 separately, before suggesting strategies for reconciling these solution classes in order to be a simultaneous solution of the system.
AFRIKAAANSE OPSOMMING: Multi-resolusie analise (MRA) het in die afgelope twee dekades toenemende gewildheid geniet as 'n veld in wiskundige wetenskappe. Nie net is dit 'n area wat ryklik toepaslik is nie, maar dit bevat ook steeds vele oop vraagstukke. MRA bou op die grondleggings van verfynbare funksies en poog om deur vlakke van data-komponente te sorteer, of te lter, 'n konsep wat aanloklik is in 'n era waar die ontwikkeling van digitale toestelle (om maar 'n enkele voorbeeld te noem) sodanig moet wees dat meer en meer inligting vasgel^e en gestoor moet word. Behalwe vir die ontwerp van digitale voorwerpe, soos animasie- lms, word MRA ook toegepas in 'n mees vername navorsingsgebied genaamd inverwing, waar \verlore" data (soos byvoorbeeld in 'n foto) herwin word deur data te neem uit aangrensende gebiede en dit dan oor die le e data-dele te \smeer." Twee hooftakke in toepassing van MRA is subdivisie en gol e-analise. Die eerste gebruik verfynbare funksies om algoritmes te ontwikkel waarmee digitale krommes ontwerp kan word vanuit 'n eindige aantal aanvanklike gegewe punte. Die verkrygde krommes (of sketse) kan voldoen aan verlangde vlakke van gladheid (of verlangde grade van kontinue afgeleides, wiskundig gesproke). Gol es word op hul beurt gebruik om lters te bou waarmee gewensde dataof geraas-komponente verwyder kan word uit datastelle. Een van die grootste voordeel van die gebruik van gol es bo ander soortgelyke instrumente om data lters mee te bou, is dat die geraas-komponente wat uitgetrek word nooit verlore gaan nie, sodat die proses omkeerbaar is deurdat die gebruiker die sodanige geraas-komponente in die groter datastel kan terugbou deur die gol e-algoritme in trurat toe te pas. Hierdie eienskap van gol fies open 'n wonderlike toepassingsmoontlikheid daarvoor, naamlik dat 'n bestaande datastel verander kan word deur data-komponente daartoe te voeg wat nooit daarin was nie, deur so 'n gol e-algoritme te gebruik. In die onlangse boek deur Chui and De Villiers (sien [2]) is algoritmes ontwikkel vir die toepassing van subdivisie sowel as gol es, sonder om staat te maak op die grondlegging van Fourier-analise, soos wat die gebruik was in vroe ere navorsing en waardeur algoritmes wat ontwikkel is minder e ektief was vir eindgebruikers. Die fundamentele resultaat oor gol es in Hoofstuk 9 in [2], verduidelik hoe suksesvolle gol e-ontbinding ekwivalent is aan die oplosbaarheid van 'n sekere versameling van identiteite bestaande uit Laurent-polinome, bekend as Bezout-identiteite, en dit is bewys hoedat sodanige stelsels van identiteite opgelos kan word in 'n sistematiese proses. Die werk in [2] is gedoen in die eenveranderlike geval, en dit is die doelwit van hierdie tesis om soortgelyke resultate te ontwikkel in die tweeveranderlike geval, waar sodanige veralgemening absoluut nie-triviaal is. Nadat 'n inleiding tot MRA in Hoofstuk 1 aangebied word, terwyl die verfynbaarheid van funksies, met boks-latfunksies as prototipes van verfynbare funksies in die tweeveranderlike geval, bespreek word, word ons fundamentele resultaat gegee en bewys in Hoofstuk 2, naamlik dat gol e-ontbinding in die tweeveranderlike geval ook ekwivalent is aan die oplos van 'n sekere stelsel van Bezout-identiteite. In Hoofstuk 3 word 'n versameling van Laurent-polinome van korste moontlike lengte gegee as illustrasie van 'n oplossing van 'n sodanige stelsel van Bezout-identiteite in Hoofstuk 2, vir die besondere geval van die Courant hoedfunksie, wat in Hoofstuk 1 gede nieer word. In Hoofstuk 4 ondersoek ons 'n toepassing van die resultaat in Hoofstuk 3 tot tweeveranderlike interpolerende subdivisie. Met die oog op die ontwikkeling van 'n algemene klas van gol es verwant aan die Courant hoedfunksie, brei ons vervolglik in Hoofstukke 5 { 8 'n algemene teorie uit om die oplossing van die stelsel van Bezout-identiteite te ondersoek, elke identiteit apart, waarna ons moontlike strategie e voorstel vir die versoening van hierdie klasse van gelyktydige oplossings van die Bezout stelsel.
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Holdar, Annika, and Frida Yngve. "Den digitala resan i tid och rum : En studie av Uppsalahems arbete för att uppnå en framgångsrik digitalisering." Thesis, Uppsala universitet, Företagsekonomiska institutionen, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-446059.
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Syftet med denna studie är att undersöka vilka faktorer som är avgörande för att en organisation ska kunna genomgå en framgångsrik digitalisering, samt hur dessa faktorer relaterar till varandra. Detta för att på så sätt, ur ett medarbetar- och chefsperspektiv, öka förståelsen för vad som bidrar till en framgångsrik digitalisering. Studien har ämnat besvara syftet och frågeställningen med hjälp av sociomaterialitetsteorin. Studien baseras på en tvärvetenskaplig metod, där empirin har samlats in via semistrukturerade intervjuer och en enkät på det kommunala bostadsbolaget Uppsalahem. Resultatet visar på att ett flertal faktorer kan påverka organisationens möjligheter till en framgångsrik digitalisering: individens målbild; motivation till att arbeta för organisationens gemensamma mål; utbildning i digitala lösningar; möjlighet för anställda att komma med förslag; grad av engagemang bland anställda; digital mognad hos anställda; anställdas inställning till digitala lösningar; kollegors inställning till digitala lösningar; målgruppsbaserad kommunikation; resursfördelning; chefernas resurstillgång för att stötta. Vidare indikerar resultatet på att ett flertal av dessa faktorer relaterar till varandra. Genom att undersöka vilka faktorer, samt dess relationer, som inverkar på organisationens möjligheter att bedriva en framgångsrik digitalisering, har studien bidragit en ökad förståelse för hur ett digitaliseringarbete kan bedrivas för att inkludera alla anställda inom ett bolag - även de som inte har digitala lösningar som primärt arbetsverktyg. Resultatet tyder på att det finns ett flertal faktorer som bör beaktas för att en organisation ska nå en framgångsrik digitalisering.The purpose of this study is to examine which factors that are crucial for an organization to go through a successful digitalization, and how these factors relate, to increase the understanding of what contributes to a successful digitalization. The study aims to answer the purpose and the research question with a theoretical perspective of sociomateriality. An interdisciplinary method forms the basis of this study. The empirical data has been collected via semi-structured interviews and a survey at the municipal landlord Uppsalahem. The results indicated that several factors could influence an organization's possibilities to reach a successful digitalization: goals, the motivation to work for the organizations common goals, training in digital solutions, the opportunity to makes suggestions, degree of employee engagement, uneven digital maturity among employees, employees' attitude towards digital solutions; communication bases on target-groups; resource allocation; managers' access to resources to support. Further, the results indicate that several of these factors relate. By examining the factors and the relationships that affect the organization's ability to conduct a successful digitization. The study also contributed to a better understanding of how digitalization can be conducted to include all members of the organization - even those who do not have digital solutions as their primary work tool. The results indicate that there are several factors that should be considered by the organization to accomplish a successful digitalization.
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Khalil, Sabine. "La mise en oeuvre des solutions "cloud" dans les grandes entreprises françaises : au-delà de la gouvernance des TIC ?" Electronic Thesis or Diss., Paris, ENST, 2017. http://www.theses.fr/2017ENST0064.
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L'avènement de l'internet a entraîné des changements majeurs dans les entreprises ces dernières décennies. De nouveaux modèles d'affaires et services ont émergé affectant les processus métiers et les modes de fonctionnement au sein des entreprises. L'adoption des solutions cloud n'a fait qu'accentuer ces transformations. Si ces solutions ont permis d’améliorer l’automatisation des processus, d'accroître l'agilité organisationnelle, de réduire le time-to-market, et d'assurer des services informatiques à la demande, elles ont également engendré de nouveaux risques pour les entreprises liés à la sécurité, la fiabilité des services, et même la nécessité de nouvelles compétences spécifiques. Comme pour la gouvernance des TIC, les entreprises doivent gouverner leurs solutions cloud afin d'en tirer le maximum davantage et de réduire les risques associés. Bien que de nombreux travaux se soient intéressés à la gouvernance des TIC, peu se sont penchés sur la manière dont les entreprises gouvernent leurs solutions cloud. A cet effet, nous avons décidé de mener une étude qualitative, basés sur la conduite d'entretiens, auprès de 35 grandes entreprises françaises ayant adopté des solutions cloud. Cette étude nous a permis d'explorer les modèles de gouvernance déployés dans les entreprises françaises et d'identifier les liens éventuels entre le modèle de gouvernance déployé et les niveaux d'intensité d'adoption des solutions cloud. Ce travail de thèse met en évidence les différents impacts liés à l'adoption du cloud et souligne l'émergence de plusieurs modèles de gouvernance au sein des entreprises interrogées. Cependant différents facteurs de contingence semblent influencer ces modèles de gouvernanceThroughout the last decades, the Internet has brought a myriad of innovative services in organizations. Cloud computing has been a part of Information Technologies that have transformed organizations. It enhances automation and agility, allows scalability and ubiquity as well as reduces time-to-market. However, previous research studies in the IT field has taught us that organizations cannot sustain in a competitive market without, first, investing in IT, and then, effectively governing it. For instance, the extensive list of failing organizations, due to their bad IT governance, has raised awareness regarding the importance held for effective governance. Therefore, organizations can use their investments in IT to their benefits when governed effectively. Similarly, in order to reduce risks generated when adopting cloud services, and benefit from the promised advantages, organizations should effectively govern them. Nevertheless, to our knowledge, no cloud governance model, addressing the various angles of cloud computing, exists. While this research work is motivated by the primordial need for governance, it explores cloud governance adopted by large French organizations, and whether it can be achieved through the organizations’ IT governance. In addition, it aims at studying the possible link between the organization’s effective cloud governance and the intensity level of their adoption. We conduct 35 interviews with large French organizations that have adopted cloud services in order to meet the objectives of this research work. The two rounds of interviews with the 35 organizations highlight numerous major impacts of cloud computing. From the results arise different possible governance models when adopting cloud services in large organizations, along with various factors affecting this governance. We finally stress on the originality of our contributions in the IT and cloud governance literature, as well as we draw the light on the impact of theoretical and practical implications to the Information Systems community
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Turnes, Christopher Kowalczyk. "Efficient solutions to Toeplitz-structured linear systems for signal processing." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/51878.
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This research develops efficient solution methods for linear systems with scalar and multi-level Toeplitz structure. Toeplitz systems are common in one-dimensional signal-processing applications, and typically correspond to temporal- or spatial-invariance in the underlying physical phenomenon. Over time, a number of algorithms have been developed to solve these systems economically by exploiting their structure. These developments began with the Levinson-Durbin recursion, a classical fast method for solving Toeplitz systems that has become a standard algorithm in signal processing. Over time, more advanced routines known as superfast algorithms were introduced that are capable of solving Toeplitz systems with even lower asymptotic complexity. For multi-dimensional signals, temporally- and spatially-invariant systems have linear-algebraic descriptions characterized by multi-level Toeplitz matrices, which exhibit Toeplitz structure on multiple levels. These matrices lack the same algebraic properties and structural simplicity of their scalar analogs. As a result, it has proven exceedingly difficult to extend the existing scalar Toeplitz algorithms for their treatment. This research presents algorithms to solve scalar and two-level Toeplitz systems through a constructive approach, using methods devised for specialized cases to build more general solution methods. These methods extend known scalar Toeplitz inversion results to more general scalar least-squares problems and to multi-level Toeplitz problems. The resulting algorithms have the potential to provide substantial computational gains for a large class of problems in signal processing, such as image deconvolution, non-uniform resampling, and the reconstruction of spatial volumes from non-uniform Fourier samples.
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MEYER, DANIEL. "Resilient Supply Chains : A Framework to Position Vendor Managed Inventory Digital Solutions and Enhance Resilience of Supply Chains After Disruptions." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-284539.
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We live in an era where markets are more dynamic and the product life cycle is shorter, an era where concepts such as smart manufacturing and mass customization form part of daily life in industries and where consumption rates of products and services are rising. All these result in more dynamic, global, complex and fragile supply chains. Disruptions are negative impacts on business continuity in companies and when a supply chain is disrupted there is only one way to tackle the challenges originated and is the ability to be resilient. Based on a systematic literature review, this thesis lay out a framework to position Vendor Managed Inventory digital solutions in order to provide full visibility in the supply chains, and enhance agility and flexibility skill sets in the organizations to be resilient after massive disruptions such as the COVID-19. The conclusions of this work provide a positive outlook of the capabilities of VMI solutions to create more resilient supply chains.Vi lever i en era där marknader är mer dynamiska och produkters livscykel kortare. En era där koncept som smart tillverkning och mass-anpassning är en del av dagliga livet i industrier och där konsumtionsnivåer av produkter och tjänster ökar. Allt detta resulterar i mer dynamiska, globala, komplexa och känsliga försörjningskedjor. Störningar påverkar kontinuiteten i verksamheten negativt hos företag och när en försörjningskedja påverkas av störningar finns det bara ett sätt att hantera utmaningarna som uppstår och det är genom förmågan att vara motståndskraftig. Baserad på systematisk litteratursökning, lägger denna avhandling fram ramverk för att positionera Vendor Managed Inventory digitala lösningar för att förse full synlighet i distributionskedjan och förbättra rörlighetens och flexibilitetens förmågor i organisationerna för att bli mera uthållig efter massiva störningar som COVID-19. Slutsatserna av detta arbete ger en positiv syn på möjligheterna för VMI-lösningar för att skapa mer motståndskraftiga försörjningskedjor.
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Scherling, Daniel, and 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.
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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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Hussein, Walid [Verfasser], Thomas [Akademischer Betreuer] Becker, and Gerhard H. [Akademischer Betreuer] Müller. "Digital Processing Based Solutions for Life Science Engineering Recognition Problems / Walid Hussein. Gutachter: Gerhard H. Müller ; Thomas Becker. Betreuer: Thomas Becker." München : Universitätsbibliothek der TU München, 2013. http://d-nb.info/1042276897/34.
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Björelind, Karl, and Simon Malmberg. "Arbetsmetodik för effektivisering av intern materialförsörjning." Thesis, Högskolan i Gävle, Industriell ekonomi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-26658.
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Inledning: Hantering av material ställer varierande krav beroende på dess beskaffenhet. För att bemöta interna krav i form av hög leveransservice till en låg kostnad är det betydande att utforma en effektiv försörjning av material. Ny teknik och tillämpning av IT-system kan skapa förutsättningar till att effektivisera materialförsörjningen genom att öka servicegraden och reducera kostnader. Syfte: Syftet med denna studie är att utforma och utvärdera en arbetsmetodik för att effektivisera intern försörjning av material från godsmottagning till produktion. Metod: En teoretisk referensram utgjorde grunden för att identifiera viktiga områden för att skapa en effektiv intern materialförsörjning. Parallellt genomfördes en fallstudie hos ett företag verksamma inom hissbranschen, där insamling av data främst genomförts utifrån olika typer av intervjuer och observationer för att skapa en uppfattning om företagets materialförsörjning. Den data som framkom jämfördes främst med den teoretiska referensramen i analysfasen i den framtagna arbetsmetodiken och utifrån denna drogs slutsatser. Etiska aspekter beaktades genomgående under arbetets gång. Den framtagna arbetsmetodiken: Utifrån viktiga identifierade områden, baserat på den teoretiska referensramen, utformades en arbetsmetodik för effektivisering av intern materialförsörjning, bestående av sex faser: Förutsättningar, Beskrivning av nuläget, Analys av nuläget, Utformning av förbättringsförslag, Genomförande samt Uppföljning. Fyra av dessa faser tillämpades på fallföretaget med syftet att utforma förbättringsförslag med potential att effektivisera verksamhetens interna materialförsörjning. Slutligen utvärderades arbetsmetodikens tillämpade faser för att lyfta fram dess styrkor, utmaningar och utvecklingsmöjligheter samt den vidare tillämpningen. Slutsatser: Betydande områden samt andra stödjande digitala lösningar ansågs inte vara tillräckliga för att generera en effektiv intern materialförsörjning utan det behövdes ett ordnat arbetssätt för att tillgodogöra dessa områden. För att understödja detta krävdes komplement i form av en arbetsmetodik med ett antal strukturerade faser, med viktiga hänsynstaganden, som metodiskt måste följas för att utforma förbättringsförslag som kan skapa en effektivare intern materialförsörjning. Förbättringsförslagen som utformades omfattade bland annat ett nytt förfarande för materialavrop, nya principer för buffertar, reducering av interntransporter samt automatiskt förslag på lagringsplats.Introduction: Handling of materials sets different requirements depending on its characteristics. In order to meet internal demands of high delivery service at a low cost, it is important to design an effective supply of materials. New technology and the application of IT-systems can provide opportunities to streamline materials supply by increasing service levels and reducing costs. Purpose: The purpose of this study is to design and evaluate a working methodology in order to achieve effective internal supply of materials from goods receipt to production. Methods: A theoretical framework formed the basis to identify significant areas to achieve effective internal materials supply. In parallel, a case study was conducted at a company operating in the elevator industry. Data collection was primarily based on different types of interviews and observations to create an understanding of the company´s materials supply. The data obtained were mainly compared with the theoretical framework in the analysis phase of the developed working methodology. Conclusions was drawn, based on the analysis phase. Ethical aspects were taken into account throughout the work of this study. The developed working methodology: Based on significant identified areas, from the theoretical framework, a working methodology was developed to achieve effective internal materials supply, consisting of six phases: Prerequisites, Description of the current situation, Analysis of the current situation, Design of improvement proposals, Implementation and Follow-up. Four of these phases were applied on a company with the aim of designing improvements proposals with the potential to achieve effective internal materials supply. Finally, the applied phases of the working methodology were evaluated to highlight its strengths, challenges and possibilities of development as well as the further application. Conclusion: The significant areas and other supportive digital solutions were not considered sufficient enough to generate effective internal materials supply and thereby there was a necessity for an organized approach to utilize these areas. In order to support this, complements were required in form of a working methodology with a number of structured phases, including important considerations, which must be followed methodically in order to design improvement proposals which can achieve a more effective internal materials supply. The improvement proposals that were designed included, for instance, a new procedure for materials call-off, new principles for buffers, reduction of internal transports and automatic suggestion of place of storage.
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Van, Hooland Seth. "Metadata quality in the cultural heritage sector: stakes, problems and solutions." Doctoral thesis, Universite Libre de Bruxelles, 2009. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210349.
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Contrairement à l'opinion dominante, les nouvelles technologies n'ont pas toujours un impact positif sur la qualité des métadonnées dans le secteur culturel. Après dix ans d'expérience avec les projets de numérisation dans nos musées, bibliothèques et archives, une réflexion critique se montre plus que jamais nécessaire pour évaluer à quelles conditions ce genre de projets d'informatisation peuvent offrir une valeur ajoutée pour la documentation de notre patrimoine culturel. Cette réflexion se base, entre autres, sur un ensemble de case studies représentatifs dans un contexte international. A cette fin, nous présenterons et définirons un cadre méthodologique et conceptuel original concernant l'impact des technologies sur la qualité des métadonnées. Sur cette base, nous proposons et expérimentons trois approches opérationnelles novatrices en vue d'améliorer la qualité des systèmes d'information déployés dans le secteur culturel.Doctorat en Information et communication
info:eu-repo/semantics/nonPublished
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Silva, dos Santos Guna Alexander. "Performability issues of fault tolerance solutions for message-passing systems: the case of RADIC." Doctoral thesis, Universitat Autònoma de Barcelona, 2009. http://hdl.handle.net/10803/5774.
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¿Es adecuado un sistema rápido pero poco robusto?¿Es adecuado un sistema disponible pero lento? Estas dos cuestiones representan la importancia de prestaciones y disponibilidad en clusters de computadores. Esta tesis se enmarca en el estudio de la relación entre prestaciones y disponibilidad cuando un cluster de computadores basado en el modelo de paso de mensajes, usa un protocolo de tolerancia a fallos basado en rollback-recovery con log de mensajes pesimista. Esta relación también es conocida como performability.
Los principales factores que influyen en la performability cuando se usa la arquitectura de tolerancia a fallos RADIC son identificados y estudiados. Los factores fundamentales son la latencia de envío de mensajes que se incrementa cuando se usa el log pesimista, que implica una perdida de prestaciones, como también la replicación de los datos redundantes (checkpoint y log) necesaria para el incremento de la disponibilidad en RADIC y el cambio de la distribución de procesos por nodo causada por los fallos, que pueden causar degradación de las prestaciones así como las paradas por mantenimiento preventivo.
Para tratar estos problemas se proponen alternativas de diseño basadas en análisis de la performability. La pérdida de prestaciones causada por el log y la replicación ha sido mitigada usando la técnica de pipeline. El cambio en la distribución de procesos por nodo puede ser evitado o restaurada usando un mecanismo flexible y transparente de redundancia dinámica que ha sido propuesto, que permite inserción dinámica de nodos spare o de repuesto.
Los resultados obtenidos demuestran que las contribuciones presentadas son capaces de mejorar la performability de un cluster de computadores cuando se usa una solución de tolerancia a fallos como RADIC.
Is a fast but fragile system good? Is an available but slow system good? These two questions demonstrate the importance of performance and availability in computer clusters.
This thesis addresses issues correlated to performance and availability when a rollback- recovery pessimistic message log based fault tolerance protocol is applied into a computer cluster based on the message-passing model. Such a correlation is also known as performability.
The root factors influencing the performability when using the RADIC (Redundant Array of Distributed Independent Fault Tolerance Controllers) fault tolerance architecture are raised and studied. Factors include the message delivery latency, which increases when using pessimistic logging causing performance overhead, as also in the redundant data (logs and checkpoints) replication needed to increase availability in RADIC and the process per node distribution changed by faults, which may cause performance degradation and preventive maintenance stops.
In order to face these problems some alternatives are presented based on a performability analysis. Using a pipeline approach the performance overhead of message logging and the redundant data replication were mitigated. Changes in the process per node distribution can be avoided or restored using the flexible and transparent mechanism for dynamic redundancy proposed, or using a dynamic insertion of spare or replacement nodes.
The obtained results show that the presented contributions could improve the performability of a computer cluster when using a fault tolerance solution such as RADIC.
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Aminoff, Fredrik, and Johan Dettel. "Payment Solutions for Services in Interactive TV : A Comparative Evaluation of Electronic Payment Systems." Thesis, Linköping University, Department of Management and Economics, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2168.
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The market for digital TV is developing and some industry actors focus on interactive TV. Interactive content and services that previously only were able to use through a standard PC are now available to use through the TV set. To distribute the services to the TV a so called set top box with broadband connection needs to be used. Such a box can be described as a unit where a standard PC and a digital TV receptor are integrated.
This thesis aims to investigate the market for electronic payment solutions with a focus on payment for interactive content and services in digital TV. The presumptive services are many which lead to a relative complex analysis of how they should be paid for. What kind of service is it really to be paid for?
In order to conduct an appropriate analysis this thesis contains an identification of five different service-/content types. The grouping we have conducted is in so called On Demand services, Voice over IP, Shopping, Interactive TV and web services. In order to be able to conduct a relevant assessment of how the distributed services should be paid for the understanding of the market situation is utterly important. Therefore the thesis contains a pre study of the different market actors that can be related to a set top box and interactive TV.
The study of eight different actors on the Swedish market provides an overview of content providers’ as well as payment companies’ view on how interactive content and services should be paid for. The result from the thesis is a recommendation on how an electronic payment solution should be designed and important aspects to think of. One of the key outcomes is that different services needs different types of payment solutions which implies that you should first decide on what type of services that are to be provided before a decision is made on the payment solution.
A byproduct from the thesis is the analysis model that facilitates analysis of services as well as payment solutions and - methods related to electronic payments and interactive media.
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Lahiani, Amal [Verfasser], Nassir [Akademischer Betreuer] Navab, Nassir [Gutachter] Navab, Wilko [Gutachter] Weichert, and Nasir M. [Gutachter] Rajpoot. "Deep Learning Solutions for Cancer Drug Development in Digital Pathology / Amal Lahiani ; Gutachter: Nassir Navab, Wilko Weichert, Nasir M. Rajpoot ; Betreuer: Nassir Navab." München : Universitätsbibliothek der TU München, 2020. http://d-nb.info/1229620761/34.
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Beninca, de Farias Giovanni. "Etude de solutions OFDM en technologie "Photonique Silicium" pour les futures générations de réseaux optiques passifs." Thesis, Grenoble, 2013. http://www.theses.fr/2013GRENT083/document.
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Dans le contexte des Réseaux Optiques Passifs (PON), les opérateurs recherchent des solutions innovantes pour augmenter le débit agrégé, nombre d'utilisateurs et portée de la transmission. En plus, des solutions émetteurs-récepteurs à bas coût sont nécessaires. La technique de transmission Orthogonal Frequency Division Multiplexing (OFDM) peut améliorer les performances de la communication en termes de débit agrégé et portée comparé à la modulation classique On-Off Keying (OOK) mono-porteuse. Au même temps, la technologie Photonique sur Silicium permet de réduire le coût par unité des émetteurs-récepteurs, en raison de sa capacité de production en masse et intégration électro-optique. L'OFDM optique a déjà démontré son potentiel avec des composants optiques sur étagère. Par contre, son utilisation avec des émetteurs compatibles avec la technologie Photonique sur Silicium est plus difficile. L'objectif de ce travail est d'étudier les performances d'un lien basé sur des composants Photoniques sur Silicium utilisant la technique de modulation OFDM. Pour atteindre cet objectif, une plateforme de simulation dédiée est développée. Le modulateur-démodulateur OFDM est mise en place, ainsi que des modèles d'émetteurs Photoniques sur Silicium développés pendant la thèse. Ces modèles sont validés expérimentalement avec la caractérisation des composants disponibles au laboratoire. En parallèle, un banc expérimental est construit. Les émetteurs Photoniques sur Silicium sont comparés avec des composants à l'état-de-l' art sur étagère dans un lien OFDM optique. Dans les systèmes en modulation d'intensité et détection directe (IM/DD), une technique d'allocation quasi-optimale de bits et puissance avec de l'OFDM optique est proposée pour maximiser l'efficacité spectrale. Deux types d'émetteurs Photoniques sur Silicium sont considérés : des lasers hybrides III/V-sur-Silicium en modulation directe (expérimentation) et des modulateurs externes comme le Mach-Zehnder (MZM) (simulation) et en anneau-résonant (expérimentation et simulation). Les résultats expérimentaux montrent qu'un débit agrégé de 10Gbps peut être attendu jusqu'à 50km de fibre monomode, compatible avec les exigences de futures générations de PONs. La portée de la transmission (>10Gbps) avec le modulateur en anneau est limitée à 20km, en raison des pertes de couplage élevé en entrée/sortie de la puce. Les simulations montrent que la portée peut atteindre 100km si les pertes sont réduites. Une technique de modulation appelée Single-Side Band (SSB)-OFDM est connu pour améliorer le produit bande-passante-portée de la transmission, en comparaison avec des systèmes IM/DD (Dual-Side Band (DSB)). Par contre, l'émetteur SSB exige plusieurs composants électriques et optiques discrets, augmentant sa complexité. La technologie Photonique sur Silicium permet de un haut niveau d'intégration électro-optique. Pour cette raison, une implémentation spécifique d'un modulateur optique IQ sur Silicium permettant une génération efficace d'un signal SSB-OFDM est étudiée. Les résultats de simulation d'un cas d'étude montrent que l'émetteur Silicium permet d'atteindre une pénalité dans le budget optique relativement faible (de l'ordre de 3dB) comparé à un modulateur LiNbO3. Les solutions présentées dans cette thèse répondent aux besoins de future générations de PON en termes de débit avec des bandes-passantes relativement faibles (<6.25GHz). Ceci est un atout pour l'application considérée. Les tensions de modulations pour les liens IM/DD sont proches des celles fournies par l'électronique CMOS (about 2Vpp). Le développement récent de processeurs numériques et de convertisseurs numériques-analogiques à haut débit en CMOS font de l'OFDM une solution très attractive pour les futures générations de PONs, puisque des transmetteurs tout-Silicium peuvent désormais être envisagésIn the context of Passive Optical Networks (PON), operators are looking for innovative solutions to increase aggregated data-rate, split-ratio and reach. Another requirement is that transceivers should be as low-cost as possible. The optical Orthogonal Frequency Division Multiplexing (OFDM) technique can improve performance of the transmission in terms of data-rate and reach as compared to classical single-carrier On-Off Keying (OOK) modulation. At the same time, the silicon photonics technology can lower the cost per unit of the transceiver, due to its mass production and E/O integration capabilities. Optical OFDM has already shown its potential using commercially available optical components. However, its use with silicon photonics Directly-Modulated Lasers (DML) and modulators is more challenging. The objective of this work is to study the performance of OFDM -based solutions for future PON, using silicon photonics transmitters. For that purpose, a dedicated simulation platform is developed. The OFDM modem is implemented, as well as models of silicon photonic devices built during this thesis. These models are validated by characterizing physical components available for test. In parallel, an experimental test-bed is developed. The silicon photonics transmitters are benchmarked with commercial-available transmitters for OFDM-based optical systems. For Intensity-Modulated/Directly-Detected (IM/DD) links, the use of optical OFDM with adaptive bit and power loading is proposed to maximize spectral efficiency. Two types of silicon photonics transmitters are considered: directly modulated III/V-on-silicon lasers (experiment) and external optical modulators such as Mach-Zehnder Modulator (MZM) (simulation) and ring-resonator (simulation and experiment). Experimental results show that the hybrid DML can provide more than 10Gbps aggregated data-rate over at least 50km, which is a requirement for future uplink PON (from the subscriber to the central office). For the silicon ring modulator, because of the high coupling loss in and out of the photonic chip, reach was limited to 20km for a data-rate higher than 10Gbps. These are the first experimental demonstrations of OFDM modulation with hybrid III/V-on-silicon lasers and silicon ring-resonator modulator. Besides, simulation results show that reach can be indeed improved up to 100km if the optical signal is amplified or the coupling loss reduced. A modulation technique called Single-Side Band (SSB)-OFDM is known to improve the [bandwidth x reach] product of the link, as compared to IM/DD (Dual-Side Band (DSB)) systems. However, it requires expensive transmitters with several discrete optical components. As silicon photonics technology allows a very high level of integration between different optical components and between electrical and optical devices, a silicon optical IQ modulator enabling ac{SSB}-ac{OFDM} technique is investigated. Simulation results of a study-case reveal that a relatively low optical budget penalty (up to 3dB) of the silicon photonics transmitters as compared to the LiNbO3 modulator is achieved. The solutions presented in this thesis are demonstrated to be compliant with future PON in terms of data-rate, with relatively low bandwidth (<6.25GHz) electronics. This is a great asset for the considered application. The driving voltages required for typical IM/DD systems showed to be closer to what CMOS driving circuitry can provide (about 2Vpp). Recent developments on high-speed digital signal processors and D/A-A/D converters, using CMOS technologies, make optical-OFDM an attractive solution for future PONs as full-Silicon-transmitters could be used
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Wagenius, Carolina, and Magdalena Zetterström. "Köp nu, betala senare : En explorativ studie om beteendedesign och hur användare väljer betalmetod i e-handeln." Thesis, Linnéuniversitetet, Institutionen för informatik (IK), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-104911.
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Skuldsättningen kopplad till konsumtion ökar i det svenska samhället, vilket gått hand i hand med e-handelns framväxt och faktura som populär betalmetod. Betallösningar som tillhandahåller faktura och delbetalning som betalmetoder åt e-handlare har i och med det fått kritik av media och ny lagstiftning mot viss typ av beteendedesign i betallösningarnas tjänster har även införts. Trots samhällsdebatten har det saknats forskning på hur kunder väljer betalmetod och deras upplevelser av påverkan från beteendedesign inom betallösningarna. Denna studie har därför haft som syfte att ge inledande insikter och kunskap om detta. Kvalitativa metoder har använts tillsammans med teori om beteendedesign och hur människor fattar beslut. Specifikt har teorin bestått av Theory of Planned Behaviour och tre typer av beteendedesign - persuasive design, digital nudging och dark patterns. En utvärdering av betallösningarna Klarna och Qliro genomfördes med syfte att identifiera beteendedesign i deras tjänster. Därefter genomfördes intervjuer med användare för att förstå deras beslutsprocess vid val av betalmetod och hur beteendedesign kan tänkas påverka dem i denna kontext. Resultaten visade att informanterna hade ett invant beteende vid val av betalmetod när de genomför köp online. Oavsett om den föredragna betalmetoden var kortbetalning eller faktura verkar valet främst baseras på upplevd kontroll. Hur enkel och trygg betalmetoden känns är de främsta faktorerna som påverkar valet. Beteendedesign tycktes inte ha en direkt påverkan på valet av betalmetod för användarna i denna studie, troligen på grund av att de vanor och attityder som användarna redan har är så pass välgrundade. Om beteendedesign haft en inverkan på hur dessa vanor och attityder har formats från början kan däremot inte resultaten från studien ge svar på.The amount of debt connected to consumption is increasing in the Swedish society. This increase has coincided with the emergence of e-commerce and invoice as a popular payment method. Payment solutions that provides invoice and installment as payment methods for e-commerce sites has because of this received criticism by media and a new legislation against a certain type of behavioral design in payment solutions has been introduced. Despite the public debate there is a lack of research about how users choose payment method and their experiences about the impact that behavioral design has within this context. The aim of this study was to provide initial insights and knowledge about this topic. Qualitative methods were used together with theory about behavioral design and human decision making. Specifically, Theory of Planned Behavior and three types of behavioral design – persuasive design, digital nudging and dark patterns. An evaluation of the two payment solutions Klarna and Qliro, was carried out to identify behavioral design in their services. This was followed by interviews with users to get an understanding about their decision process when choosing payment method and how behavioral design impact this process. The results showed that the users in this study had a habitual behavioral when it comes to choosing payment method when shopping online. Regardless if the preferred method is invoice or card payment it seems as if the choice is mainly based on perceived control. How easy and safe the payment method feels are the main factors that impacts the choice. Behavioral design does not seem to have a direct impact on the choice of payment method for the users in this study, probably because the habits and attitudes that they already have are well-grounded. However, if behavioral design had an impact in forming the habits and attitudes from the start is something the result from this study cannot answer.
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Azamfirei, Victor. "A visualization approach for improved interpretation and evaluation of assembly line balancing solutions." Thesis, Högskolan i Skövde, Institutionen för ingenjörsvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-16249.
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Future manufacturing will be characterized by the complementarity between humans and automation (human-robot collaboration). This requires new methods and tools for the design and operation of optimized manufacturing workplaces in terms of ergonomics, safety, efficiency, complexity management and work satisfaction. There have been some efforts in the recent years to propose a tool for determining optimal human-automation levels for load balancing. Although the topic is quite new, it shares some similarities with some of the existing research in the area of robotic assembly line balancing. Therefore, it is crucial to review the existing literature and find the most similar models and methods to facilitate the development of new optimization models and algorithms. One of the two contributions that this thesis gives to the research world in the RALBP context is a literature review that involves high quality articles from 1993 to beginning 2018. This literature review includes visual and comprehensive tables—and a label system— where previous research patterns and trends are highlighted. Visualization of data and results obtained by assembly line optimization tools is a very important topic that has rarely been studied. Data visualization would provide a: 1. better comprehension of patterns, trends and qualitative data 2. more constructive information absorption 3. better visualization of relationships and patterns between operations, and 4. better contribution to data manipulation and interaction. The second contribution to research found in this thesis is the use of a human modelling (DHM) tool (called IPS), which is proposed as an assessment to the ergonomic risk that a robotic assembly line may involve. This kind of studies are necessary in order to reduce one of the most frequent reasons of work absence in our today society i.e. musculoskeletal disorders (MSDs). MSDs are often the result of poor work environments and they lead to reduced productivity and quality losses at companies. In view of the above, IPS was used in order to resolve the load handling problem between human and robot, depending on their skills and availability, while fulfilling essential ISO standards i.e. 15066 and 10218:1 and :2. The literature review made it possible to select highly useful documents in developing assumptions for the experiment and contributed to consider real features detected in the industry. Results show that even though IPS is not capable of calculating an entire robotic assembly with human-robot collaboration, it is able to simulate a workstation constituted of one robot and one human. Finite and assembly motions for both human and robot are expected to be implemented in future versions of the software. Finally, the main advantages of using DHM tools in assessing ergonomic risks in RALB can be extracted from the results of this thesis. This advantages include 1. ergonomic evaluation for assembly motions 2. ergonomic evaluation for a full working day (available in future version) and 3. essential ISO standard testing (available in future version).
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Ziebell, Robert-Christian. "Digital transformation of HR - History, implementation approach and success factors - Cumulative PhD Thesis." Doctoral thesis, Universitat Politècnica de València, 2019. http://hdl.handle.net/10251/117608.
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[ES] La digitalización de los procesos de RRHH en soluciones basadas en la nube progresa continuamente. Esta tesis examina tales transformaciones, deriva un modelo de proceso concreto e identifica los factores críticos de éxito.
La metodología utilizada para la investigación es de carácter cualitativo. Como base y medida preparatoria para abordar las cuestiones de investigación, se llevó a cabo un amplio estudio bibliográfico en el ámbito de los recursos humanos, con especial atención a las publicaciones sobre la gestión electrónica de los recursos humanos (en adelante, "e-HRM"). Basándose en este conocimiento y en la combinación de una amplia experiencia práctica con proyectos de transformación de RRHH, se publicó un estudio que presenta el desarrollo histórico de e-HRM y que ha derivado en un modelo de procesos optimizado que tiene en cuenta los requisitos técnicos de RRHH así como las limitaciones de la nueva tecnología de la nube. Posteriormente, se entrevistó a varios expertos en RRHH que ya habían adquirido experiencia de primera mano con los procesos de RRHH en un entorno de nube para averiguar qué factores de éxito eran relevantes para dicha transformación de RRHH.
Las principales conclusiones de esta tesis son la derivación de un modelo de procedimiento de proyecto de mejores prácticas para la transformación de los procesos de RRHH en una solución basada en la nube y la identificación de obstáculos potenciales en la implementación de dichos proyectos. Además, se elaboran los motivos de dicha transformación, los factores que impulsan el proceso dentro de una organización, el grado actual de digitalización de los recursos humanos, los parámetros operativos y estratégicos necesarios y, en última instancia, el impacto en los métodos de trabajo. Como resultado, se realiza una evaluación del uso de las métricas de HR y se derivan nuevas ratios potenciales.[CAT] La digitalització dels processos de RRHH en solucions basades en el núvol progressa contínuament. Aquesta tesi examina tals transformacions, deriva un model de procés concret i identifica els factors crítics d'èxit. La metodologia utilitzada per a la investigació és de caràcter qualitatiu. Com a base i mesura preparatòria per a abordar les qüestions d'investigació, es va dur a terme un ampli estudi bibliogràfic en l'àmbit dels recursos humans, amb especial atenció a les publicacions sobre la gestió electrònica dels recursos humans (en endavant, "e-HRM "). Basant-se en aquest coneixement i en la combinació d'una àmplia experiència pràctica amb projectes de transformació de RRHH, es va publicar un estudi que presenta el desenvolupament històric d'e-HRM i que ha derivat en un model de processos optimitzat que té en compte els requisits tècnics de RRHH així com les limitacions de la nova tecnologia del núvol. Posteriorment, es va entrevistar a diversos experts en RRHH que ja havien adquirit experiència de primera mà amb els processos de RRHH en un entorn de núvol per esbrinar quins factors d'èxit eren rellevants per a aquesta transformació de RRHH. Les principals conclusions d'aquesta tesi són la derivació d'un model de procediment de projecte de millors pràctiques per a la transformació dels processos de RRHH en una solució basada en el núvol i la identificació d'obstacles potencials en la implementació d'aquests projectes. A més, s'elaboren els motius de la transformació, els factors que impulsen el procés dins d'una organització, el grau actual de digitalització dels recursos humans, els paràmetres operatius i estratègics necessaris i, en última instància, l'impacte en els mètodes de treball . Com a resultat, es realitza una avaluació de l'ús de les mètriques de HR i es deriven nous ràtios potencials.
[EN] The digitisation of HR processes into cloud-based solutions is progressing continuously. This thesis examines such transformations, derives a concrete process model and identifies the critical success factors. The methodology used for the investigation is of a qualitative nature. As a basis and preparatory measure to address the research questions, an extensive literature study in the HR field was carried out, with a special focus on publications on electronic human resources management (hereinafter e-HRM). Based on this knowledge and the combination of extensive practical experience with HR transformation projects, a study was published which presents the historical development of e-HRM and derived an optimised process model taking into account the technical HR requirements as well as the limitations of the new cloud technology. Subsequently, several HR experts who had already gained first-hand experience with HR processes in a cloud environment were interviewed to find out which success factors were relevant for such an HR transformation. Main findings of this thesis are the derivation of a best-practice project procedure model for the transformation of HR processes into a cloud-based solution and the identification of potential obstacles in the implementation of such projects. In addition, the motives for such a transformation, the drivers within an organisation, the current degree of HR digitisation, the necessary operational and strategic parameters and ultimately the impact on working methods are worked out. As a further result, an assessment of the use of HR metrics is given and potential new key figures are derived.
Ziebell, R. (2019). Digital transformation of HR - History, implementation approach and success factors - Cumulative PhD Thesis [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/117608
TESIS
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Bohorquez, Cuadros José Francisco, Arias Dennis Andrei Cori, Angles Daniela Mariana Paca, Chacón Ricardo Antonio Suarez, and Poma Gabriela Giselle Villarroel. "Desarrollo de aplicación para soluciones logísticas." Bachelor's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2021. http://hdl.handle.net/10757/657005.
Full textAbstract:
Según diversos estudios a nivel nacional e internacional tras la aparición de la pandemia Covid-19, el comercio electrónico ha incrementado considerablemente su potencial, puesto que la coyuntura actual conlleva a evitar las aglomeraciones en la mayor medida posible, y el comercio electrónico es la perfecta alternativa para evitar riesgos. Ante este escenario, diversas compañías, en especial PYMES, se han visto en la obligación de reforzar su sistema de ventas online, ya sea mediante una página web o redes sociales. De este modo, la idea de negocio escogida busca implementar una aplicación, la cual tenga como finalidad principal facilitar el proceso de comunicación entre transportistas, personas naturales y empresas que requieran hacer cualquier envió de carga. Por ello, mediante la aplicación denominada “U-Transfer” se busca generar un mayor clima de confianza entre las personas y/o empresas que deseen realizar envíos y transportista que quieran ampliar su cartera de clientes, puesto que antes de la aparición del Covid-19 la primera opción de compras o entrega de envíos era de forma presencial. Por ende, las herramientas que brinda la idea de negocio buscan crear lazos de confianza entre ambas partes mediante servicios de geolocalización, subasta de envíos, comunicación en tiempo real, entre otros. Asimismo, se busca que esta herramienta sirva para impulsar el servicio de comercio electrónico y poder contribuir a evitar las aglomeraciones y cumplir con las medidas sanitarias impuestas por el estado.According to various studies at a national and international level after the appearance of the Covid-19 pandemic, electronic commerce has considerably increased its potential, since the current situation leads to avoiding crowds as much as possible, and electronic commerce is the perfect alternative to avoid risks. Faced with this scenario, various companies, especially SMEs, have been forced to reinforce their online sales system, either through a website or social networks. In this way, the chosen business idea seeks to implement an application, whose main purpose is to facilitate the communication process between carriers, natural persons and companies that need to make any shipment of cargo. For this reason, through the application called “U-Transfer” it is sought to generate a greater climate of trust between people and/or companies who wish to make shipments and carriers who want to expand their client portfolio, since before the appearance of Covid- 19 the first option to purchase or deliver shipments was in person. Therefore, the tools provided by the business idea seek to create bonds of trust between both parties through geolocation services, shipment auctions, real-time communication, among others. Likewise, it is intended that this tool serves to promote the electronic commerce service and be able to help avoid crowds and follow the health measures imposed by the state.
Trabajo de investigación
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ILARDI, DAVIDE. "Data-driven solutions to enhance planning, operation and design tools in Industry 4.0 context." Doctoral thesis, Università degli studi di Genova, 2023. https://hdl.handle.net/11567/1104513.
Full textAbstract:
This thesis proposes three different data-driven solutions to be combined to state-of-the-art solvers and tools in order to primarily enhance their computational performances. The problem of efficiently designing the open sea floating platforms on which wind turbines can be mount on will be tackled, as well as the tuning of a data-driven engine's monitoring tool for maritime transportation. Finally, the activities of SAT and ASP solvers will be thoroughly studied and a deep learning architecture will be proposed to enhance the heuristics-based solving approach adopted by such software. The covered domains are different and the same is true for their respective targets. Nonetheless, the proposed Artificial Intelligence and Machine Learning algorithms are shared as well as the overall picture: promote Industrial AI and meet the constraints imposed by Industry 4.0 vision. The lesser presence of human-in-the-loop, a data-driven approach to discover causalities otherwise ignored, a special attention to the environmental impact of industries' emissions, a real and efficient exploitation of the Big Data available today are just a subset of the latter. Hence, from a broader perspective, the experiments carried out within this thesis are driven towards the aforementioned targets and the resulting outcomes are satisfactory enough to potentially convince the research community and industrialists that they are not just "visions" but they can be actually put into practice. However, it is still an introduction to the topic and the developed models are at what can be defined a "pilot" stage. Nonetheless, the results are promising and they pave the way towards further improvements and the consolidation of the dictates of Industry 4.0.
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Dell, Geoff University of Ballarat. "The causes and prevention of airline baggage handler back injuries : safe designs required where behaviour and administrative solutions have had limited effect." University of Ballarat, 2007. http://archimedes.ballarat.edu.au:8080/vital/access/HandleResolver/1959.17/12823.
Full textAbstract:
"Back injuries have consistently been the most common types of injuries suffered by people at work. They have been a significant worker injury problem in most, if not all, industrialised countries for many years and manual handling has long been established as a significant task related back injury causal factor.[...] This research project established that the manufacturers of the jet airlines used by the airlines in this study had not previously been acquainted with the issue of baggage handler back injuries.[...] This study also canvassed the opinion of airline safety professionals and airline baggage handlers concerning baggage handling tasks and working environment related causal factors. [...] A major focus of this research project was also to measure the effect of ACE and Sliding Carpet, two commercially available retro-fit baggage systems, on the risk of back injuries to baggage handlers stacking baggage within Boeing B737 narrow-body aircraft."Doctor of Philosophy
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Dell, Geoff. "The causes and prevention of airline baggage handler back injuries : Safe designs required where behaviour and administrative solutions have had limited effect." Thesis, University of Ballarat, 2007. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/44427.
Full textAbstract:
"Back injuries have consistently been the most common types of injuries suffered by people at work. They have been a significant worker injury problem in most, if not all, industrialised countries for many years and manual handling has long been established as a significant task related back injury causal factor.[...] This research project established that the manufacturers of the jet airlines used by the airlines in this study had not previously been acquainted with the issue of baggage handler back injuries.[...] This study also canvassed the opinion of airline safety professionals and airline baggage handlers concerning baggage handling tasks and working environment related causal factors. [...] A major focus of this research project was also to measure the effect of ACE and Sliding Carpet, two commercially available retro-fit baggage systems, on the risk of back injuries to baggage handlers stacking baggage within Boeing B737 narrow-body aircraft."Doctor of Philosophy
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Dell, Geoff. "The causes and prevention of airline baggage handler back injuries : safe designs required where behaviour and administrative solutions have had limited effect." University of Ballarat, 2007. http://archimedes.ballarat.edu.au:8080/vital/access/HandleResolver/1959.17/14622.
Full textAbstract:
"Back injuries have consistently been the most common types of injuries suffered by people at work. They have been a significant worker injury problem in most, if not all, industrialised countries for many years and manual handling has long been established as a significant task related back injury causal factor.[...] This research project established that the manufacturers of the jet airlines used by the airlines in this study had not previously been acquainted with the issue of baggage handler back injuries.[...] This study also canvassed the opinion of airline safety professionals and airline baggage handlers concerning baggage handling tasks and working environment related causal factors. [...] A major focus of this research project was also to measure the effect of ACE and Sliding Carpet, two commercially available retro-fit baggage systems, on the risk of back injuries to baggage handlers stacking baggage within Boeing B737 narrow-body aircraft."Doctor of Philosophy