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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
31

Budoucnost bydlení / Future housing

Križanovská, Ivana January 2018 (has links)
The design is a modular structure, repeating itself in cities around the world. The space grid, which forms the platform for mobile housing, provides the city nomad with the ability to easily move from city to city and live with its small home anywhere.
32

Digital nomads and the future of work : A qualitative study which discuss challenges digital nomads and organizations face and the future of work

Lidman, Sofia January 2023 (has links)
The phenomenon of Digital Nomads (DN) is quickly becoming a rising trend within the knowledge workforce. Their idea is to work remotely and travel the world at the same time. In this thesis 8 semi-structured interviews with DNs were performed to answer the following research questions: (1) What kind of challenges do Digital Nomads face and how do they overcome them? (2) What can we learn from digital nomadism in relation to the future of work? Half of the participants were self-employed DN and the other half were employed by a company. Challenges they faced were divided into three perspectives: individual, work-related and global challenges. Their definition of a ‘true’ DN, their attitudes towards corporate work and experienced challenges are presented in the findings. By analyzing the findings, DN in relation to the future of work is discussed as well as challenges DN and corporates face together and suggestions on how to create a better collaboration between the two is presented.
33

Wandering Through Intellectual Ashes : National Identity and the Southern Question in Postwar Marxist Italian Film. A Postcolonial Visual Ontology

Veglia, Matilde January 2022 (has links)
This thesis is crafted as an explorative theoretical essay, which aims to disclose the continuities and shifts in constructions of Italian post-war identity through the lenses of Marxist theory and postcolonial film analysis. The research will attempt to locate three paradigmatic cases of post-war Italian cinema and their authors in relation to the historical context, as well as coeval political and theoretical developments in the country. In order to produce a cartography of the Italian social landscape and its spaces of marginality and exclusion, the reader will be guided through this analysis by following the adventures of a paradigmatic character type, whom I will call “the wanderer”, a figure whose itinerant quality reflects the marginality of a social position and attitude that can be summed up by as the “art of getting by” (l’arte di arrangiarsi). As I will show, this position and attitude play a central role in defining a particular identity in relation to established social norms. To trace the transformation of this character, then, is also to trace transformations in the nation’s self-understanding in relation to class, race, gender, and the external world. My interpretation is built on two main theoretical premises. The first one is Gayatri Spivak’s contention that the importance of aesthetics, and aesthetic education, lies in their capacity to mediate between idealism and empiricism, or ethics and social reality. The second premise follows Fredric Jameson’s hypothesis about the creative quality of realism as an aesthetic paradigm, assuming that its primary aim and function is not a representative one, but one of active re-creation of the social reality anew. For me, these two premises are linked by the primary role they assign to aesthetic representation – as connected with imagination – in creating new grounds for social change.
34

Le nomadisme numérique : nuances d'un style de vie idéalisé

Massé-Leblanc, Philippe 05 1900 (has links)
Le nomadisme numérique, le style de vie emprunté par les célèbres nomades numériques, est souvent présenté dans les médias sociaux et classiques comme idéal, glamour et accessible à tous. Ce mémoire nuance ce portrait en se basant sur une série d’entretiens avec des nomades numériques expérimentés ; le nomadisme numérique, ainsi que le sédentarisme actuel, comporte des avantages et des inconvénients pour l’individu qui l’emprunte. Ces avantages et inconvénients dépendent de la façon dont l’individu pratique le nomadisme numérique : les destinations fréquentées, le type de logement utilisé, la fréquence des voyages, la situation conjugale de l’individu et son sexe dans une certaine mesure. De même, la pratique du nomadisme numérique est permise par certains facteurs et n’est pas accessible à tous : célibat, salaire dans une monnaie avantageuse, une ou plusieurs activités professionnelles appropriées, une personnalité « aventureuse » Le manque de responsabilités familiales et d’économies avant le départ sont des caractéristiques que tous les participants avaient avant de devenir nomades. Ces mêmes facteurs signifient que le nomadisme numérique n’est pas durable à très long terme ; aucun des participants interrogés, à l’exception d’un, ne s’est considéré comme nomade pour le reste de sa vie. La plupart d’entre eux se considèrent comme un nomade numérique saisonnier et ont un « chez-soi » dans leur pays d’origine ou ailleurs, parfois donné des désirs personnels, comme fonder une famille, considérée comme incompatible avec le nomadisme numérique par certains. / Digital nomadism, the lifestyle borrowed by the famous digital nomads, is often presented in social and classic media as ideal, glamorous and accessible to all. This study, based on a series of interviews with experienced digital nomads, nuances this portrait; digital nomadism, like current sedentarism, involves advantages and disadvantages. These depend on how he or she practices digital nomadism: the destinations frequented, the type of housing used, the frequency of travel, the marital situation of the individual and his gender to some extent. Similarly, the practice of digital nomadism is permitted by certain factors and is not accessible to all: being single, receiving a salary in an advantageous currency, one or more appropriate professional activities, an “adventurous” personality, flexibility, lack of financial obligations, lack of family responsibilities and savings before departure are characteristics that all participants had before they became nomads. These same factors mean that digital nomadism is not sustainable in the very long term; none of the participants interviewed, apart from one, saw themselves as nomadic for the rest of their lives. Most consider themselves to be seasonal digital nomads and to have a home base in their home country or elsewhere; sometimes given personal desires, such as starting a family, are seen as incompatible with digital nomadism by some.
35

Medusa House

Elizondo Luna, Roberto Carlos 28 April 2015 (has links)
No description available.
36

Optimal Design of Modular High Performance Brushless Wound Rotor Synchronous Machine for embedded systems / Conception optimale d'un moteur synchrone à rotor bobiné modulaire à hautes performances pour une application embarquée

Le Luong, Huong Thao 18 October 2018 (has links)
Cette thèse est dédiée à la conception optimale de la machine synchrone à rotor bobiné modulaire sans balais pour les systèmes embarqués. Cette machine est basée sur une structure POKIPOKITM développée par Mitsubishi Electric Coopération avec les convertisseurs de puissance intégrée pour augmenter la capacité de tolérance aux défauts. L'analyse électromagnétique est utilisée pour étudier les différentes machines synchrones à rotor bobiné et donc, pour sélectionner la structure qui offre la meilleure tolérance aux défauts et les performances les plus élevées. D’abord, le choix des nombres de phases, d’encoches et de pôles est un point critique. Ensuite, quelques machines sont analysées et comparées selon les critères tels que la densité de couple, le rendement, l'ondulation de couple. La machine avec 7 phases, 7 encoches et 6 pôles est alors choisie. Cette machine est ensuite comparée à la machine synchrone à aimant permanent monté en surface. Le résultat démontre que la machine synchrone à rotor bobiné modulaire sans balais possède le potentiel de remplacer la machine synchrone à aimant permanent dans notre application parce qu’elle présente des performances similaires avec une capacité de tolérance aux défauts élevée. Dans un second temps, une fois la structure 7phases/7encoches/6pôles choisie, cette machine est optimisée en utilisant NOMAD (qui est un logiciel d'optimisation de boîte noire) afin de minimiser le volume externe sous les contraintes électromagnétiques, thermiques et mécaniques. Comme ce problème d'optimisation est extrêmement difficile à résoudre, quelques relaxations ont été effectuées pour tester les différents algorithmes d'optimisation : fmincon (de Matlab) et NOMAD. Nous remarquons que NOMAD est plus efficace que fmincon pour trouver des solutions à ce problème de conception où certaines contraintes sont calculées par des simulations numériques (ANSYS Maxwell ; code éléments finis). En utilisant la méthode NOMAD basée sur l’algorithme Mesh Adaptive Direct Search, nous obtenons des résultats optimaux qui satisfont toutes les contraintes proposées. Il est nécessaire de valider ce design optimisé en vérifiant toutes les contraintes par des simulations électromagnétiques et thermiques en 3D. Les résultats montrent que le couple moyen obtenu par la simulation en 3D est inférieur à la valeur souhaitée. Par conséquent, en augmentant la longueur de la machine, une nouvelle machine corrigée est ainsi obtenue. Nous observons que les pertes de fer obtenues en 3D sont plus élevées qu'en 2D en raison du flux de fuite dans la tête de bobinage. En prenant les valeurs des pertes analysées par la simulation en 3D, la température de surface de la nouvelle machine analysée par la méthode Computational Fluid Dynamics est plus élevée que celle calculée dans l’optimisation. Enfin, un prototype de machine est construit et quelques tests expérimentaux est réalisés. Le résultat montre que la force électromotrice à vide a une forme d'onde similaire par rapport à la prédiction numérique en 3D et la différence de couple statique maximum entre les tests expérimentaux et les simulations par éléments finis en 3D est faible. / This thesis is dedicated to the design and the optimization of modular brushless wound rotor synchronous machine for embedded systems. This machine is constructed based on POKIPOKITM structure with integrated drive electronics. Finite element analysis based optimization becomes more popular in the field of electrical machine design because analytical equations are not easily formalized for the machines which have complicate structures. Using electromagnetic analysis to comparatively study different modular brushless wound rotor synchronous machines and therefore, to select the structure which offers the best fault tolerant capability and the highest output performances. Firstly, the fundamental winding factor calculated by using the method based on voltage phasors is considered as a significant criterion in order to select the numbers of phases, stator slots and poles. After that, 2D finite element numerical simulations are carried out for a set of 15 machines to analyze their performances. The simulation results are then compared to find an appropriate machine according to torque density, torque ripple and machine efficiency. The 7phase/7-slot/6-pole machine is chosen and compared with a reference design surfacemounted permanent magnet synchronous machine in order to evaluate the interesting performance features of the wound rotor synchronous machine. In the second design stage, this machine is optimized by using derivative-free optimization. The objective is to minimize external volume under electromagnetic, thermal and mechanical constraints. Given that an accurate finite element analysis for machine performance takes a long time. Moreover, considering that the average torque can be obtained by simulating the model with only four rotor positions instead of one electric period, optimization strategy is proposed to reduce computational time and therefore, obtain a fast convergence ability by defining relaxed problems which enable minimizing the external volume of the machine under only several constraints such as average torque, torque ripple and copper losses. By testing relaxed problems, two different optimization methods (NOMAD and fmincon) are compared in order to select an appropriate method for our optimization problem. Using NOMAD method based on Mesh Adaptive Direct Search, we achieve optimal results which satisfy all of the constraints proposed. In the third design stage, all constraints are validated by 3D electromagnetic and thermal simulations using finite element and computational fluid dynamics methods. The 3D results show that the average torque obtained is lower than the desired value. By increasing the length of the machine, a new corrected machine is thus obtained. It can be observed that the iron losses obtained in 3D are higher than that in 2D due to the leakage flux in the end-winding. Then, the machine temperature is analyzed by using ANSYS Fluent. Note that the surface temperature is higher than that calculated in the optimization and the coil temperature is 8.48°C higher than the desired value (105°C). However, some dissipation by the shaft and the bearings of the machine are expected to reduce the machine temperature. Finally, a machine prototype is built and some experimental tests are carried out. The results show that the electromotive force has a similar waveform compared to 3D prediction and the difference of the measured and predicted maximum static torques is small.
37

Digital Nomad Lifestyle : A field study in Bali

Haking, Julia January 2018 (has links)
The digital age has unleashed limitless opportunities and transformed how we work, play and live. As a result, more people embrace the digital nomad lifestyle to fulfill both personal and professional goals. This research assesses the advantages and disadvantages that are associated with this lifestyle. In addition, I examine the digital nomad characteristics in Bali and how the digital nomad community in Bali supports professional development. Data were collected during a two-month field study in Bali, which is one of the world’s most popular digital nomad hubs. The findings suggest that digital nomads are predominantly millennials from advanced economies who have different academic backgrounds. Freedom is the primary advantage, while overall job satisfaction and productivity dramatically differ. Overall, members of Bali’s digital nomad community feel supported in their professional development. “Spend your days on a nine to five You waste your time on a central line What do you love? Work two jobs tryin' stay alive You spend your money on a Friday night Tell me, what do you love?” – Jacob Banks / Digitaliseringen har skapat oändligt många möjligheter och förändrat hur vi arbetar, umgås och lever i dagens samhälle. Det har resulterat i att allt fler provar på en livsstil som digital nomad för att uppnå både personliga och professionella mål. Den här uppsatsen analyserar fördelar och nackdelar som är förknippade med en livsstil som digital nomad. Dessutom undersöker jag vad som karaktäriserar digitala nomader på Bali och hur gemenskapen bland digitala nomader på Bali kan gynna professionell utveckling. Insamling av data skedde under en två månaders fältstudie på Bali, vilket är en av världens mest populära digital nomad hubbar. Resultatet visar att digitala nomader är främst millenials från i-länder med olika akademisk bakgrund. Frihet är den främsta fördelen, medan generell arbetstillfredsställelse och produktivitet varierar dramatiskt. Medlemmar av Balis digitala nomadgemenskap känner att de utvecklas professionellt. “Spend your days on a nine to five You waste your time on a central line What do you love? Work two jobs tryin' stay alive You spend your money on a Friday night Tell me, what do you love?” – Jacob Banks
38

Digital Nomad Lifestyle : A field study in Bali

Haking, Julia January 2018 (has links)
The digital age has unleashed limitless opportunities and transformed how we work, play and live. As a result, more people embrace the digital nomad lifestyle to fulfill both personal and professional goals. This research assesses the advantages and disadvantages that are associated with this lifestyle. In addition, I examine the digital nomad characteristics in Bali and how the digital nomad community in Bali supports professional development. Data were collected during a two-month field study in Bali, which is one of the world’s most popular digital nomad hubs. The findings suggest that digital nomads are predominantly millennials from advanced economies who have different academic backgrounds. Freedom is the primary advantage, while overall job satisfaction and productivity dramatically differ. Overall, members of Bali’s digital nomad community feel supported in their professional development. “Spend your days on a nine to five You waste your time on a central line What do you love? Work two jobs tryin' stay alive You spend your money on a Friday night Tell me, what do you love?” – Jacob Banks / Digitaliseringen har skapat oändligt många möjligheter och förändrat hur vi arbetar, umgås och lever i dagens samhälle. Det har resulterat i att allt fler provar på en livsstil som digital nomad för att uppnå både personliga och professionella mål. Den här uppsatsen analyserar fördelar och nackdelar som är förknippade med en livsstil som digital nomad. Dessutom undersöker jag vad som karaktäriserar digitala nomader på Bali och hur gemenskapen bland digitala nomader på Bali kan gynna professionell utveckling. Insamling av data skedde under en två månaders fältstudie på Bali, vilket är en av världens mest populära digital nomad hubbar. Resultatet visar att digitala nomader är främst millenials från i-länder med olika akademisk bakgrund. Frihet är den främsta fördelen, medan generell arbetstillfredsställelse och produktivitet varierar dramatiskt. Medlemmar av Balis digitala nomadgemenskap känner att de utvecklas professionellt. “Spend your days on a nine to five You waste your time on a central line What do you love? Work two jobs tryin' stay alive You spend your money on a Friday night Tell me, what do you love?” – Jacob Banks
39

Opvoedkundig-sielkundige ondersoek na derdekultuur-kinders in Suid-Afrika / An educational-psychological exploratory investigation on third culture kids in South-Africa

Bester, Dierdré 01 1900 (has links)
Text in Afrikaans / Hierdie studie handel oor derdekultuur-kinders in Suid-Afrika met die fokus daarop om die fenomeen aan ouers, kinders, onderwysers, sielkundiges en ander belangstellendes bekend te stel. Derdekultuur-kinders is die term wat geskep is om kinders te benoem wat vir 'n tydperk tydens hulle ontwikkelingsjare saam met hulle ouers in die buiteland deurbring en hul daar vestig, maar weer na hul vaderland terugkeer. 'n Derdekultuur word geskep indien die kinders dele van hul ouers se kultuur en dele van die kultuur van die gasheerland integreer ten einde geredelik in die gasheerland te funksioneer. Die probleem ontstaan egter wanneer hierdie kinders na hul vaderland terugkeer, aangesien hulle dan nie meer binne hul portuurgroep inpas nie. Die aantal derdekultuur-kinders in Suid-Afrikaanse konteks het sedert 1994 met rasse skrede vermeerder, aangesien al hoe meer internasionale maatskappye Suid-Afrikaners in die buiteland in diens neem en Suid-Afrikaanse ambassades in bykans elke land in die wêreld gevestig is. Die tendens om gesinne saam op die internasionale plasing te neem, veroorsaak dat kinders in verskeie lande gevestig word en in hierdie tydperk aan 'n internasionale en bevoorregte leefwyse blootgestel word. In hierdie studie word 'n literatuurstudie onderneem om die profiel van derdekultuur-kinders, hul kulturele identiteitsvorming en omgekeerde kultuurskok met hul terugkeer na hul land van oorsprong, te ondersoek. 'n Empiriese studie is onderneem om te bepaal tot watter mate die profiele en omgekeerde kultuurskok waaraan Suid-Afrikaanse derdekultuur-kinders blootgestel word, vergelyk met dié soos beskryf in die literatuurstudie. Op grond van die inligting verkry uit vraelyste en individuele onderhoudvoering, en inligting verkry uit die literatuurstudie, is riglyne vir 'n hulpprogram saamgestel waarmee ouers hulle derdekultuur-kinders tydens hulle terugkeer na Suid-Afrika kan ondersteun. Terapeute sonder internasionale ondervinding sal ook hierdie hulpprogram nuttig kan vind. Die studie bevestig dat: * die profiel van Suid-Afrikaanse derdekultuur-kinders grootliks met dié van ander lande ooreenstem; * Suid-Afrikaanse derdekultuur-kinders problematiese her-aanpassing by hul terugkeer na hul paspoortland ondervind; * ouers en terapeute bemagtig moet word om derdekultuur-kinders met hul heraanpassingsprobleme te ondersteun. / This study deals with Third Culture Kids in South Africa, focusing on introducing the phenomenon to parents, children, teachers, psychologists and other concerned parties. “Third Culture Kids” is the term used to describe children who have spent a number of their developmental years with their parents abroad, after which they return to their country of origin. A third culture is created when children integrates the culture of their parents together with the culture of the host country in order to function readily in the host community. The problem arises when the children return to their home country as they then encounter problems adapting and fitting into the local community. The number of Third Culture Kids in the South African context has increased dramatically since 1994, as international companies employed more South Africans abroad and many new South African Embassies were established all over the world. The tendency of having the family accompanying the parents to other countries results in the children residing in various countries and being exposed to an international and privileged lifestyle This study consists of a literature study of the profile and cultural identity-formation of Third Culture Kids, as well as the reverse culture shock they experience on their return to their country of origin.An empirical study is conducted to establish how South African Third Culture Kids‟ profiles compare with that of the literature and whether they are affected by reverse culture shock upon their return to South Africa. The information, gathered by means of a survey and individual interviews and from the literature study, was then used to compile guidelines for a programme with which parents would be able to assist their Third Culture Kids during the repatriation to their country of origin. Therapists without international experience would also be able to benefit from using this programme to assist Third Culture Kids. The study confirms that: the profiles of South African Third Culture Kids have commonalities with those described in the literature; South African Third Culture Kids experience problems on re-entry adapting to the culture of the country of origin; parents and therapists should be empowered to assist and support Third Culture Kids with problems relating to their return to their passport country / Educational Studies / D.Ed. (Sielkundige Opvoedkundige)
40

Recherche des oscillations nu_mu to nu_e dans l'experience NOMAD

Krasnoperov, Alexei 26 June 2000 (has links) (PDF)
NOMAD est une expérience de recherche des oscillations de neutrinos nu_mu -> nu_tau et nu_mu -> nu_e, placée dans le faisceau de nu_mu du SPS du CERN. L'intérêt de cette<br />recherche est lié aux problêmes des masses des neutrinos et des mélanges de<br />saveurs.<br />Cette thèse décrit une recherche des oscillations nu_mu -> nu_e fondée sur l'ensemble<br />des données de NOMAD accumulées durant les quatre années (1995-1998) de<br />son fonctionnement. La recherche de l'apparition des nu_e est faite en utilisant les<br />interactions courant chargée (CC) dans le détecteur NOMAD. La sélection des<br />interactions nu_e CC et nu_mu CC à l'aide de différents algorithmes d'identification<br />des particules dans les sous-détecteurs de NOMAD ainsi qu'à l'aide de critère<br />cinématique d'événement est étudiée ici en détail.<br />Nous montrons que NOMAD est sensible à la région des paramètres des oscillations nu_mu -> nu_e favorisée par l'expérience LSND pour les différences de masses<br />au carrée supérieures à 10 eV2/c4.<br />L'analyse étant faite "en aveugle" et l'étude des systématiques liées au faisceau se poursuivant dans la collaboration, seule une fraction des données de<br />NOMAD, l'échantillon de contrôle, a pu être utilisé pour déduire la limite supérieure de la probabilit d'oscillation nu_mu -> nu_e.

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