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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.
371

Portrayal and representation of autism spectrum disorder through ludonarrative design

Osadzuk, Christian January 2024 (has links)
The purpose of this study was to experiment with the possibility of using ludonarrative techniques present in games to communicate the socio-communicative impairments common in individuals diagnosed with Autism Spectrum Disorder. Through extensive research, there is a pronounced lack of Autism representation in the form of diagnosed characters and their behaviors in games that there is little research made in this area. To explore this hypothetical quandary, an experiment was performed to test the effectiveness of how games may be used to convey concepts of Autism Spectrum Disorder to neurotypical individuals to enrich their understanding of the disorder and towards those who have it, through the creation and usage of a language based puzzle game prototype. The results concluded that disguising ASD symptoms and concepts as ludonarrative gameplay metaphors was effective in increasing awareness and interest towards the disorder.
372

Gamer mode in citizen science : Observations on, and implications of, player behaviour in a serious game with simplified real-world mechanics

Bladh, Oskar January 2024 (has links)
This study explores an experimental design methodology to circumvent issues with gathering behavioural data through serious games in citizen science. Public transportation research is used as a case, as it offers a complex problem for the game to solve. Four players were interviewed and observed playing a prototype of a serious game intended on gathering data on public transportation use in Gothenburg. Alongside this, a definition of different types of behaviours in games was developed to examine whether the players were playing rationally with regards to the game context (the magic circle) and the real world. The results show promise for the simplified real world mechanics utilized, to enable engaging serious game experiences. However, many issues and challenges were also observed, revolving around the players tendency to fluctuate between different types of behaviours. The implications of these challenges and the usefulness of the experimental design are discussed at the end.
373

Enhancing Ferry Terminal Operations : Evaluating Quality-In-Use and User Experience to Develop a Self-Service Truck Check-in System Prototype

Eriksson, Alexander January 2024 (has links)
Wasaline is a shipping company that has automated their check-in process for trucks carrying cargo. This increased effectiveness and provided a better experience for drivers. To make sure that the new system was as effective as possible, the user experience of the check-in automats also had to be as good as possible. Their design, usability, and performance were evaluated based on research and ISO 25022:2016 Quality-in-Use to find issues and potential improvements. This was also backed by data collected from log files during the automated check-in process that could be compared with the old manual check-in process along with a heuristic evaluation of the system. Finally, interviews were conducted with truck drivers and staff members to get their perspective. Potential solutions to these problems were presented as a prototype that illustrates how improvements could be implemented while keeping the company’s original design.
374

Integration of Auxiliary Data Knowledge in Prototype Based Vector Quantization and Classification Models

Kaden, Marika 14 July 2016 (has links) (PDF)
This thesis deals with the integration of auxiliary data knowledge into machine learning methods especially prototype based classification models. The problem of classification is diverse and evaluation of the result by using only the accuracy is not adequate in many applications. Therefore, the classification tasks are analyzed more deeply. Possibilities to extend prototype based methods to integrate extra knowledge about the data or the classification goal is presented to obtain problem adequate models. One of the proposed extensions is Generalized Learning Vector Quantization for direct optimization of statistical measurements besides the classification accuracy. But also modifying the metric adaptation of the Generalized Learning Vector Quantization for functional data, i. e. data with lateral dependencies in the features, is considered.
375

L'imageur Interférométrique de Fresnel: un instrument spatial pour l'observation à haute résolution angulaire

Serre, Denis 04 October 2007 (has links) (PDF)
L'Imageur Interférométrique de Fresnel est un concept de télescope spatial dont l'objectif est d'améliorer significativement les capacités d'imagerie à haute résolution angulaire et haute dynamique, et ce dans les domaines spectraux ultraviolet, visible et infrarouge.<br /><br />Dans un télescope classique, la focalisation s'obtient par l'utilisation d'un miroir; dans le cas de l'Imageur Interférométrique de Fresnel, elle s'obtient par l'utilisation d'un masque diffractant comportant des dizaines ou des centaines de milliers d'ouvertures individuelles, réparties sur un support plan selon une loi se rapprochant de la disposition des anneaux d'une lentille zonée de Soret. Les contraintes de masse et de précision de fabrication de l'optique focalisatrice sont ainsi considérablement relâchées, ouvrant une voie pour concevoir un observatoire possédant une pupille d'entrée de très grande dimension. En revanche, de par la nature dispersive de cette optique, un module focal placé à grande distance est nécessaire pour achromatiser et mettre en forme l'image.<br /><br />La première partie de cette thèse est consacrée à la détermination des caractéristiques des éléments constitutifs de ce type d'imageur, et à l'étude des performances et limitations associées. La deuxième partie est elle dévolue à la description et à la présentation des performances d'un prototype sol montrant expérimentalement la validité du concept. Enfin, la troisième partie étudie les objectifs astrophysiques possibles d'un Imageur de Fresnel opérationnel.
376

Utveckling av en universell laddare / Development of a universal charger

Sahlberg, Mikael January 2007 (has links)
<p>Syftet med examensarbetet har varit att undersöka möjligheterna att utveckla, producera och lansera en ny universell laddare. Målet har varit att kunna ladda så många modeller av så många produkter som möjligt, vilket innefattar mobiltelefoner, kameror, datorer och MP3-spelare etc. Arbetet skulle leda fram till ett förslag på produkt.</p><p>Genom att undersöka befintliga patent och produkter, har marknaden granskats och slutsatsen är att det finns en uppsjö av universella laddare på marknaden. Dock finns det få produkter som inger säkerhet, möjliggör multipel laddning och som är stationära. Dessa egenskaper blev grundstenar i den kravspecifikation som utarbetades. Genom en teknisk analys och kundundersökning sammanställdes ytterligare viktiga parametrar.</p><p>Resultatet blev en stationär produkt som kan ladda både en bärbar dator och flera mindre elektroniska produkter. Genom att använda en metod som i rapporten betecknas tappteknik kan rätt laddningsförhållande garanteras. Med hjälp av en mikroprocessor och produktspecifika tappar eller ändadaptrar kan laddning av i princip alla sorters produkter och modeller ske.</p><p>Arbetet har även innefattat konstruktion, CAD och prototypframtagning.</p> / <p>The purpose with this thesis work has been to investigate the possibilities to develop, manufacture and introduce a new universal charger. The aim has been to be able to charge as many models of as many different products as possible, including cell phones, cameras, laptops, MP3-players etc. The work would lead to a product proposal.</p><p>By an examination of existing patents and products, has the market been reviewed. The conclusion is that there already are big amount of universal chargers in the international market. Yet there are only a few products that inspire safety, have a multiple charging function and which are for stationary use. Those properties became fundamentals in the specification. With a technical analyse and a customary review were more parameters included.</p><p>The result is a stationary product that can be used to charge both a laptop and several smaller electronic products. By using a method that is called tip technology can the right charging conditions be guaranteed. With a micro processor and with tips which are specific for each product can mostly all sorts of products and models be charged.</p><p>The work has also included mechanical design, CAD and the build of a prototype.</p>
377

A study on the acoustic performance of tramway low-height noise barriers : gradient-based numerical optimization and experimental approaches

Jolibois, Alexandre, Jolibois, Alexandre 25 November 2013 (has links) (PDF)
Noise has become a main nuisance in urban areas to the point that according to the World Health Organization 40% of the European population is exposed to excessive noise levels, mainly due to ground transportation. There is therefore a need to find new ways to mitigate noise in urban areas. In this work, a possible device to achieve this goal is studied: a low-height noise barrier. It consists of a barrier typically less than one meter high placed close to a source, designed to decrease the noise level for nearby pedestrians and cyclists. This type of device is studied both numerically and experimentally. Tramway noise barriers are especially studied since the noise sources are in this case very close to the ground and can therefore be attenuated efficiently. The shape and the surface treatment of the barrier are optimized using a gradient-based method coupled to a 2D boundary element method (BEM). The optimization variables are the node coordinates of a control mesh and the parameters describing the surface impedance. Sensitivities are calculated efficiently using the adjoint state approach. Numerical results show that the shapes generated by the optimization algorithm tend to be quite irregular but provide a significant improvement of more than 5 dB (A) compared to simpler shapes. Utilizing an absorbing treatment on the source side of the barrier is shown to be efficient as well. This second point has been confirmed by scale model measurements. In addition, a full scale low height noise barrier prototype has been built and tested in situ close to a tramway track in Grenoble. Measurements show that the device provides more than 10 dB (A) of attenuation for a close receiver located at the typical height of human ears. These results therefore seem to confirm the applicability of such protections to efficiently decrease noise exposure in urban areas
378

The universality and demarcation of lexical categories cross-linguistically

Morcom, Lindsay A. January 2010 (has links)
Drawing data from a variety of sources, this thesis compares functional evidence regarding lexical categories from a number of Salish and Wakashan languages, as well as from the Michif language. It then applies Prototype Theory to examine the structure of the lexicons of these languages. They are described in terms of prototype categories that overlap to varying extents, with each category and each area of overlap defined by a central set of prototypical features. A high degree of gradience appears to exist between categories in Salish and Wakashan languages, with no clear boundary between categories or areas of overlap, indicating that lexical categories in these languages, rather than being clearly demarcated, are instead fuzzy categories with very little distinguishing them. Categories in Michif, on the other hand, exhibit far less overlap. This variation is compared to variation in conceptual categories across languages, and challenges the notions of the universality of clearly demarcated lexical categories and the existence of separately stored language module in the human mind. In spite of the variation in lexical category demarcation observed across the languages studied, it is possible to demarcate the categories of Noun and Verb to at least some extent in all languages, as well as a category of Adjective in some languages. This supports the proposed universality of the categories of Noun and Verb, as well as the implicational universals proposed in the Amsterdam Model of Parts of Speech (Hengeveld 1992a, b). It is also possible to identify a number of defining characteristics for each lexical category that appear to hold across languages. Since similar characteristics can be identified across languages for all categories, but the categories themselves display varying degrees of overlap in individual languages, this research supports the proposal that language universals, rather than consisting of structures, rules, and categories that are identical in all languages, are rather collections of prototypical characteristics for grammatical categories that are similar across languages (Croft 2000).
379

A Pragmatic Analysis of WISH Imperatives

Ryo Nomura (6630887) 14 May 2019 (has links)
<p>A word or a linguistic construction can mean various things depending on the context. The imperative is a representative example of such a construction and can express a variety of illocutionary forces such as COMMAND, REQUEST, ADVICE, and more (Quirk et al., 1985, Huddleston et al., 2002). </p> <p>However, although there are many studies that comprehensively deal with the imperative or individual illocutionary forces of it (e.g. Lakoff, 1966, Ljung, 1975, Davies, 1986, Wilson & Sperber 1988, Han, 2000, Takahashi, 2012, Jary & Kissine, 2014), there is no such study that shows a possible overall process of how we would interpret an imperative to reach a certain illocutionary force when it is uttered. Without such a shared process, we cannot explain why we can communicate using imperatives without misunderstandings. Thus, this process needs to be investigated. </p> <p>Another problem regarding imperatives is the treatment of non-directive uses of imperatives such as “Have a good day”. The illocutionary force of this imperative would be called GOOD WISH and regarded as a conventional use of imperatives (Davies, 1986). However, it has not been clearly explained why we would choose the imperative construction to express wishes. If this kind of wishes expressed in the form of the imperative are actually a use of imperative, then there should be some reason and motivation for it. </p> <p>The main purposes of this study are to provide (1) a schema of how one would typically reach the interpretation of WISH when hearing an imperative and (2) an account of such use of imperatives as WISH. In this study, examples of imperatives in two non-cognate languages are used for the analysis in the hope to substantiate the credibility of the schema and the account: Japanese and English. Based on the analyses on the imperative and individual illocutionary forces that have been presented in the literature combined with my own analysis, a schema is proposed that illustrates how one would typically reach PRIVATE WISH, the state of affairs of which is deemed to be desirable mainly for the speaker, and GOOD WISH, the state of affairs of which is deemed to be desirable mainly for the addressee. Then, an account for the use of PRIVATE WISH and GOOD WISH is provided. Specifically, the use of imperatives as WISH is an analogous use of prototypical imperatives; people would use the imperative construction to express their strong desirability, and to build and maintain a good relationship with others.</p>
380

Supporting User Engagement in Participatory Design: A Multiple-fidelity Prototyping Approach

Lau, Charlotte January 2019 (has links)
Over the history of interaction design, concepts and methods of prototyping have been significantly developed to address new challenges faced by the field and the ever-going advancement of new technologies. Some of the important developments are related to the notions of mixed-fidelity prototyping, experience prototyping, and prototypes as filters. Building upon these developments, this study explores a multiple-fidelity prototyping approach, that is, using progressively higher fidelity prototypes in iteration. The study focused particularly on the design of user engagement. It documented, and contributed to, an actual design process of Xplore, an augmented reality game-based learning application. Three participatory design-style workshops employing low-, mixed-, and high-fidelity prototypes were conducted respectively. Thematic analyses of participants’ interactions revealed sets of themes in the workshops, which reflected the changing focus and scope of the design space. The implications of the results obtained in the study highlighted the role of prototypes of each fidelity level in engaging users in a design process, as well as the potential benefits of combining multiple fidelity prototypes when designing for user engagement.

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