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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.
451

"I spackel och mundering" : En undersökning av drag i svensk samtida scenkonst utifrån Matilda the Musical, Askungen och Everlasting Event

Bahzad, Savin January 2024 (has links)
This essay explores drag as an artform, guided by the lens of queer theory, offering insights into the nuanced expressions of drag. Exploring three theatrical productions across genres like modern dance, opera and musical theatre, the study focuses on character portrayal and design, seeking to understand the essence of drag and why certain cross- dressings are more closely associated with drag than others. By combining performance analyses with existing research on drag, this paper reveals the complex and dynamic nature of drag culture. With a particular emphasis on the exploration and subversion of gender norms, the study sheds light on how drag is portrayed and understood within the Swedish theatrical context through Matilda the Musical, Askungen and Everlasting Event. Through this investigation, the essay offers valuable insights into the evolving role of drag as a form of artistic expression and social commentary.
452

Poética y política del dragqueenismo limeño: discursos y performance legitimadores

Villanueva Jordán, Iván Alejandro 16 October 2014 (has links)
Comprendo que, en la actualidad, la actividad o acción de una drag queen (es decir, el dragqueenismo) es un fenómeno globalizado de algunas de las prácticas identitarias y culturales gay surgidas, en principio, en espacios anglófonos. Más allá de cualquier tipo de concepción esencialista, existen diversos productos culturales que han sido acuñados en el imaginario de distintas minorías sexuales y sobre los que se han desarrollado procesos de apropiación. La práctica de la drag queen, a mi parecer, ha sido una de las más exitosas y fructíferas en este proceso de apropiación; cada espacio en el que estas han tenido lugar ha arraigado la práctica de manera particular, añadiendo a su repertorio los matices locales que los propios productores y consumidores creían necesarios. Los tres capítulos que componen este trabajo colaboran con sustentar el planteamiento de que el dragqueenismo es un trabajo de representación al que recurren una comunidad de sujetos homosexuales (las drag queens) para acceder de manera legítima al espacio heteronormativo. Al hablar de un proceso de representación, me refiero al trabajo que realizan estos sujetos para crear significados de manera comunitaria, a cómo estos significados cobran relevancia en sus interacciones cotidianas y la manera en que esperan que este tipo de representación sea finalmente consumida. «Yo soy una drag queen, no soy cualquier loco.» Poética del dragqueenismo en Lima. En este capítulo presento las concepciones de la drag queen limeña en torno a su propia práctica y cómo ésta se diferencia de otras prácticas transgenéricas, como el travestismo y el transformismo. Como intento argumentar, la poética promovida por el arte y la tradición demarcarían las actitudes y acciones que definen a una drag queen y las diferencian de otros sujetos transgénero. En esta línea y como planteo, la asunción de las características de una drag queen se realiza mediante un vínculo afectivo con la práctica que termina por hacer efectiva la poética y el repertorio de elementos que sirve tanto para aceptar a otro sujeto como un semejante o para demarcar la significación del otro. «Ni con los tacones más altos estás a mi altura». Dragqueenismo y transformación de capitales. En este capítulo me dedico exponer cuáles son los vínculos que existen entre los sujetos drag queens y cómo los discursos presentados en el primer capítulo son movilizados en sus interacciones. Deseo sustentar que los sujetos drag queens de Lima, a diferencia de las drag queens representadas en otros contextos, demuestran y negocian una serie de recursos, que agrupados según categorías podrían comprenderse, desde Bourdieu, como capitales, con el fin de alcanzar una serie beneficios subjetivos y sociales. «Hoy saldré bien mujer.» Performatividad femenina como dragqueenismo. El estudio culmina con la aproximación al dragqueenismo limeño como una performance y la puesta en cuestión de cómo su poética contribuye con una performatividad heteronormativa. Esta concepción del dragqueenismo permite poner de relieve las características rituales y las funciones subjetivas y sociales del dragqueenismo. Por último, mediante la revisión de algunas propuestas teóricas que aseguraban la capacidad subversiva del dragqueenismo globalizado, busco elaborar la idea de que el dragqueenismo limeño se establece como un alcance más del dispositivo del sexo, es decir, funciona de manera performativa a favor de la matriz heterosexual.
453

Dual Mode Macro Fiber Composite-Actuated Morphing Tip Feathers for Controlling Small Unmanned Aircraft

Rubenking, Samuel Kim 25 July 2017 (has links)
The transition of flight from manned to unmanned systems has led to new research and applications of technology within the field that, until recently, were previously thought to be unfeasible. The industry has become interested in alternative control surfaces and uses for smart materials. A Macro Fiber Composite (MFC), a smart material, takes advantage of the piezoelectric effect and provides an attractive alternative actuator to servos in the Small Unmanned Aerial Systems (SUAS) regime of flight. This research looks to take MFC actuated control surfaces one step further by pulling inspiration from and avian flight. A dual mode control surface, created by applying two sets of two MFCs to patch of carbon fiber, can mimic the tip feathers of a bird. This actuator was modeled both using Finite Element Analysis (FEA) and Computational Fluid Dynamics (CFD). Real-world static testing on a feather confirmed preliminary FEA results, and wind tunnel tests simulating assumed cruise conditions confirmed the feather would not exhibit any adverse structural behaviors, such as flutter or aeroelastic divergence. From its modeled performance on a wing using CFD, the MFC feather proved to be a success. It was able to produce a wing that, when compared to a traditional rectangular wing, yielded 73% less induced drag and generated proverse yaw. However, the MFC feathers alone, in the configuration tested, did not produce enough roll authority to feasibly control an aircraft. / Master of Science / The transition of flight from manned to unmanned systems has led to new research and applications of technology within the field that, until recently, were previously thought to be unfeasible. The industry has become interested in alternative control surfaces and uses for smart materials. A Macro Fiber Composite (MFC), a smart material, takes advantage of a specific material property and provides an attractive alternative actuator to servos in the Small Unmanned Aerial Systems (SUAS) regime of flight. This research looks to take MFC actuated control surfaces one step further by pulling inspiration from and avian flight. A dual mode control surface, created by applying two sets of two MFCs to patch of carbon fiber, can mimic the tip feathers of a bird. This actuator was modeled both using Finite Element Analysis (FEA) and Computational Fluid Dynamics (CFD). Real-world static testing on a feather confirmed preliminary FEA results, and wind tunnel tests simulating assumed cruise conditions confirmed the feather would not exhibit any adverse structural behaviors, such as flutter or aeroelastic divergence. From its modeled performance on a wing using CFD, the MFC feather proved to be a success. It was able to produce a wing that, when compared to a traditional rectangular wing, yielded 73% less induced drag and generated proverse yaw. However, the MFC feathers alone, in the configuration tested, did not produce enough roll authority to feasibly control an aircraft.
454

Investigation of open channel flow with unsubmerged rigid vegetation by the lattice Boltzmann method

Jing, H., Cai, Y., Wang, W., Guo, Yakun, Li, C., Bai, Y. 10 September 2019 (has links)
Yes / Aquatic vegetation can significantly affect flow structure, sediment transport, bed scour and water quality in rivers, lakes, reservoirs and open channels. In this study, the lattice Boltzmann method is applied for performing the two dimensional numerical simulation of the flow structure in a flume with rigid vegetation. A multi-relaxation time model is applied to improve the stability of the numerical scheme for flow with high Reynolds number. The vegetation induced drag force is added in lattice Boltzmann equation model with the algorithm of multi-relaxation time in order to improve the simulation accuracy,. Numerical simulations are performed for a wide range of flow and vegetation conditions and are validated by comparing with the laboratory experiments. Analysis of the simulated and experimentally measured flow field shows that the numerical simulation can satisfactorily reproduce the laboratory experiments, indicating that the proposed lattice Boltzmann model has high accuracy for simulating flow-vegetation interaction in open channel. / National Natural Science Foundation of China (grant number: 11861003 and 11761005)
455

Användningen av dialogiska drag i matematikundervisning : Sex lärare i årskurs 4–6 beskrivningar av dialogiska drag i matematikklassrummet / The use of dialogical features in mathematics education

Elmlund, Tobias, Ekbäck, Oscar January 2024 (has links)
Syftet med föreliggande studie är att bidra med kunskap om hur matematiklärare i årskurs 4–6 uppfattar och tänker om dialogiska drag. Dialogiska drag innebär att läraren skapar tillfällen där eleverna tillåts diskutera innehållet i matematiken. Studien bygger på semistrukturerade intervjuer som erhåller insikter i lärarnas perspektiv rörande deras tankar och uppfattningar kring dialogisk undervisning. Resultatet analyseras med hjälp av ett teoretiskt ramverk bestående av fyra grundläggande mål som bör uppfyllas för att genomföra givande dialogisk undervisning. Det kartlägger vilka mål lärarna strävar mot och i vilken utsträckning, samt vilka dialogiska drag de tillämpar för att uppnå dessa mål. Resultatet belyser att vissa mål uppnås i större utsträckning än andra, samt de fördelar, utmaningar och förutsättningar som identifieras med dialogbaserad undervisning.
456

Aerodynamic Performance of Cables with Spiral Protuberances in Strong Winds / 強風下におけるスパイラル突起付きケーブルの空力特性

Dao, Minh Thu 25 March 2024 (has links)
京都大学 / 新制・課程博士 / 博士(工学) / 甲第25236号 / 工博第5195号 / 新制||工||1992(附属図書館) / 京都大学大学院工学研究科社会基盤工学専攻 / (主査)教授 八木 知己, 教授 KIM Chul-Woo, 教授 高橋 良和 / 学位規則第4条第1項該当 / Doctor of Agricultural Science / Kyoto University / DFAM
457

Colour a Symbol : Autentisering för smartphones

Engvall, Markus, Teljing, Johanna January 2014 (has links)
Under de senaste åren har den mobila tekniken i stort sett helt gått över till smartphones. Smartphones är i princip mer datorer än telefoner, som vi alltid bär med oss och som innehåller allt mer känslig information. Detta medför att kraven på säkerheten kring enheten ökar. Detta arbete undersöker om det är möjligt att finna en ny metod att låta användaren autentisera sig på, som är säkrare än de som är vedertagna idag, men samtidigt har liknande nivå av användbarhet. Vår idé, som vi arbetar med under namnet Colour a Symbol, baseras på att kombinera symboler och färger i par. För att utveckla idén skapade vi en funktionell prototyp, som sedan utvärderadesmed hjälp av en mindre testgrupp. Empirin visar på att Colour a Symbol har en god användbarhet, om än något för lång inloggningstid. Idéer för att förbättra inloggningstiden presenteras. Teoretiskt sett så är Colour a Symbol säkrare än exempelvis pinkod, men testgruppen var inte tillräckligt stor för att kunna bedöma den praktiska lösenordsrymden. Utformning av symboltema påverkar även förmodligen i hög grad den praktiska lösenordsrymden. Vår slutsats är att idén har en klar potential, men att det behövs ytterligare studier för att finslipa den. / During the past years mobile technology has moved almost entirely to smartphones. Smartphones are in essence more computers than phones, which we always carry with us and that contain ever more sensitive information. This requires that the level of security around the device increases. This study strives to find a new method of authenticating users, that is more secure than those that are established today, but at the same time has a similar level of usability. Our idea, which we work with under the name Colour a Symbol, is based upon making combinations of symbols and colours in pairs. In order to develop the idea we created a functional prototype, that was evaluated by a smaller test group. The empirical data implies that Colour a Symbol has good usability, if only a little too long login time. Ideas as to shorten the login time are suggested. Theoretically, Colour a Symbol is more secure than for an example pincode, but the test group was not large enough to estimate the practical password space. Design of the symbol theme probably also affects the practical password space to a high degree. Our conclusion is that the idea has clear potential, but that further studies are needed to fine-tune it.
458

Die Belastung und Belastbarkeit von Schwimmtauchern unter besonderer Berücksichtigung der Konfiguration der Ausrüstung sowie des passiven und dynamischen Widerstands - dargestellt anhand von objektivierenden Untersuchungsmethoden / Energetics and endurance of swimming divers, with special consideration of the equipment configuration and of the active and passive drag established by objectifiable test methods

Droste, Thomas 13 January 2005 (has links)
No description available.
459

Modelling the nonlinear dynamics of polymer solutions in complex flows

Omowunmi, Sunday Chima January 2011 (has links)
The flow of polymer solutions in the high Elasticity number, El, regime in complex geometries may lead to strong viscoelastic behaviour and eventually become unstable as the Weissenberg number, Wi, is increased beyond a critical level. So far, the success of numerical simulations in predicting the highly non-linear behaviour of polymer solutions in complex flows has been limited. In this thesis, selected constitutive models are evaluated under the high El flow regime in the cross-slot and contraction benchmark flows using a numerical technique based on the finite volume method. The numerical technique is implemented within the OpenFOAM framework and thoroughly validated in the benchmark flow. A modification to the FENE dumbbell model based on the non-affine deformation of polymer solutions is proposed, which enabled the prediction of some non-linear material functions and also enhanced numerical stability, allowing a higher Wi to be attained. Asymmetric flow instability in the cross-slot flow has been studied. Time-dependent stability diagrams were constructed based on Wi and the strain, ε, both of which govern the stretching of a polymer chain. In the contraction flow, elastic instability is simulated for the first time in this geometry. Substantial time-dependent asymmetric flow patterns were predicted as seen in experiments. The effect of the contraction ratio is investigated through a stability diagram. Three-dimensional finite element simulations were also carried out to study the effect of the aspect ratio in the contraction flow of a Phan-Thien-Tanner fluid. The simulations suggest that a lip vortex mechanism is a signature for the onset of strong viscoelastic behaviour.
460

Návrh potrubního řetězového dopravníku / Design of a pipeline chain conveyor

Machala, Petr January 2020 (has links)
This master thesis deals with the construction design of two different pipeline drag chain conveyors for transport of wheat and sewage sludge. The first part describes the operation principle and the main parts of this conveyor. The examples of designs from several manufacturers follow. Next part is devoted to determining the resistance to movement in individual sections of the transport route. Thesis continues with design proposals of both variants of conveyors, including suitable technological and strength calculations. The outputs of this work are also assembly drawings of these two conveyors.

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