Polymer components are used in many different applications, including in industries where critical applications put high requirements regarding quality assessment. Such applications might include medical or food where the presence of discontinuities might induce bacterial growth or other unpleasantries, thus certain manufacturers must be able to maintain a zero-tolerance towards damaged components. This leads to the need for efficient testing methods of nondestructive nature capable of testing large quantities of components in a production line environment. The authors have been tasked by Acoustic Agree AB and Trelleborg AB, a world-leading producer of polymer engineered solutions, to find a nondestructive testing method capable of detecting discontinuities in thin polymer components in a production line environment. Implementation in production line environments puts requirements on test cycle time and a goal is to complete a test cycle within 3-4 seconds. Due to restrictions regarding available equipment and expertise, the focus has been put on applying nonlinear acoustic methods for nondestructive testing instead of more conventional methods. These methods utilize the nonlinear distortion of acoustic waves which causes certain characteristics to appear, such as the generation of Higher Harmonics (HH), frequency modulation (NWMS), resonance frequency shift (NRUS), and amplitude recovery (IDAR). Visual testing was used to discern visibly damaged samples from seemingly undamaged ones. The only methods which showed the possibility of discerning damaged thin polymer components were NRUS and IDAR. Only the latter has the capability to maintain the prescribed test cycle time. Nonlinear acoustic methods seem to be capable of detecting discontinuities in thin polymer components within the given time frame. More work is required to properly investigate the performance of NWMS and IDAR. The configuration used in this work was mainly focused on IDAR, resulting in specific calibration for NWMS was neglected. The sample population was also too low to collect sufficient data to ensure statistical certainty regarding the performance for either method. / Polymerkomponenter används i många olika tillämpningar, i synnerhet i industrier där kritiska tillämpningar ställer höga krav på kvalitetsbedömning. Sådana tillämpningar kan finnas inom medicinska- eller livsmedelsindustrier där förekomsten av diskontinuiteter kan inducera bakterietillväxt eller andra obehagliga egenskaper, därför måste vissa tillverkare upprätta nolltolerans mot skadade komponenter. Detta leder till behovet av effektiva provningsmetoder av oförstörande natur som kan utvärdera stora mängder komponenter i en produktionslinjemiljö. Författarna har fått uppdrag av Acoustic Agree AB och Trelleborg AB, en världsledande producent av polymertekniska lösningar, för att finna en oförstörande provningsmetod som kan detektera diskontinuiteter i tunna polymerkomponenter i en produktionslinjemiljö. Implementering i produktionslinjemiljöer ställer krav på testcykeltid och ett mål är att kunna slutföra en testcykel inom 3-4 sekunder. Begränsningen av tillgänglig utrustning och expertis har lett till att författarna har fokuserat på att tillämpa olinjära akustiska metoder för oförstörande provning istället för mer konventionella metoder. Dessa metoder utnyttjar olinjär distortion av akustiska vågor vilket medför att vissa egenskaper uppträder, såsom generering av övertoner (HH), frekvensmodulering (NWMS), resonansfrekvensskift (NRUS) och amplitudåtergång (IDAR). Visuell provning användes för att skildra synligt skadade prover från till synes oskadade. De enda metoder som visade möjligheten att urskilja skadade tunna polymerkomponenter var NRUS och IDAR. Endast den sistnämnda har förmågan att utföra provning inom den föreskrivna provcykeltiden. Olinjära akustiska metoder verkar kunna detektera diskontinuiteter i tunna polymerkomponenter inom den givna tidsramen. Mer arbete krävs för att korrekt utvärdera prestandan av NWMS och IDAR. Konfigurationen som användes i detta arbete var huvudsakligen inriktad på IDAR, vilket resulterade i att specifik kalibrering för NWMS ej utförts. Provpopulationen var även för låg för att kunna samla in tillräckligt med data för att uppnå statistisk säkerhet angående metodernas prestanda.

published_or_final_version / Applied English Studies / Master / Master of Arts in Applied Linguistics

<p>Abstract</p><p>Title: See each other on the Internet or on a café? A survey about social consequences of Internet usage. (Umgås på Internet eller på ett café? – en studie om Internetanvändningens sociala konsekvenser.)</p><p>Number of pages: 34 (including enclosures).</p><p>Author: Carolin Johansson.</p><p>Tutor: Else Nygren.</p><p>Course: Media and Communication Studies C.</p><p>Period: Fall 2007.</p><p>University: Division of Media and Communication, Department of Information Science, Uppsala University.</p><p>Purpose/Aim: The purpose is to get increased knowledge about the social consequences that may come up when young people at the age of 16-20 are using the Internet.</p><p>Material/Method: The material consists of a questionnaire that I made with questions about Internet usage that 84 young people from five classes (from three different upper secondary schools) answered.</p><p>Main results: To have access to a computer and Internet and the fact that broadband is more inexpensive now than before leads to an increased usage of the Internet. I found out that chatting, music/movies, searching for information and using the Internet for entertainment is what most of the participants spent the most time on while using the Internet. I also found out that an increased usage of the Internet could lead to decreased time together with friends/family.</p><p>Keywords: Internet usage, social consequences, Instant Messaging, Community, online communication.</p>

Location-based service (LBS) is a geographical location-related service that provides highly personalized services for users. It is a platform for network operators to provide new and innovative ways of increasing profits from new services. With the rapidly growing trend toward LBS, there is a need for standard LBS protocols. This thesis started with introducing the Internet Engineering Task Force GEOPRIV working group, which endeavors to provide standard LBS protocols capable of transferring geographic location information for diverse location-aware applications. Through careful observation, it was found that Session Initiation Protocol (SIP) is well suited to the GEOPRIV requirements. The aim of this research was therefore to explore the possibility of the integration of LBS and the SIP protocol and, to some extent fulfill the GEOPRIV requirements.

The introduction of the Internet and computers into the work environment have changed the news industry. New models of revenues for spreading the news, and the reachability and accessibility of the news has grown tremendously. These implications have influenced the way media company’s employees have to work, from multi-skilling to communicating with each other efficiently. This research seeks to investigate the current state of the internal communication flow in a Swedish media company called Hallpressen AB and to find opportunities for improving the internal communication flow inside the company. In order to fully understand the existing situation in the company, the authors observed nine of the company’s departments, held 14 interviews with managers and executive committee members, and conducted two focus groups. Based on the data collection, the authors created a communication channel model of the existing communication inside the media company, and performed a qualitative content analysis to summarize the findings from the observations and interviews. The focus groups were performed in order to examine an existing communication tool called “Slack”, and to understand the general perception that the company’s employees held of it. From the findings, the authors suggested possible improvements for the company’s internal communication flows. First, what could be improved in the management of communication inside the company, such as opening of a communication department or hiring an internal communicator. Second, what could be improved in already existing communication channels, such as creation of special part on the intranet for every department and etc.

Background: E-commerce is widespread in today’s shopping routines and conversational commerce (CC) as an expansion, aims at integrating customers and businesses on a whole new level. Through the application of chatbots fueled by artificial intelligence, a more personal and individual way of remote shopping is offered. Purpose: Our research question What potential attributes of AI-fueled CC applications and their possible inherent characteristics are determining the willingness to use them and to what extent, in the context of digital natives living in Sweden and Germany? aims at identifying the demanded attributes of conversational commerce from a consumer perspective. Method: We facilitate a quantitative questionnaire with 118 valid answers to administer a traditional full-profile conjoint analysis. Conclusion: Our results indicate that German digital natives deem a CC application’s behavior as the most important attribute, followed by payment method, personality and communication form (voice or text). The Swedish digital natives however, attach the most importance to the payment method, followed by behavior, communication form and personality. Both have in common that they prefer a rather passive behavior over being actively approached, a personality that is balanced between humor and seriousness and text-based communication over voice. A difference is the Swedish preference for direct in-app payment while German digital natives would select a redirection to a secondary payment provider (e.g. PayPal).

Cette thèse a pour objet de définir la nature du lien entre l'utilisation de l’écrit numérique en messagerie instantanée et la qualité de la production orthographique. C’est pourquoi il était nécessaire de comprendre ce qui se produit sur le plan cognitif lorsque des adolescents en contact quasi quotidien avec la norme produisent de l’écrit normé et numérique. Nous avons poursuivi le travail de recherche engagé en proposant une analyse en deux temps (le premier visant à définir plus amplement l’écrit numérique en messagerie instantanée ; le second à identifier la nature du lien évoqué supra). Dans un premier temps, nous avons défini (a) l’écrit numérique lorsqu’il est employé par les adolescents, identifié (b) les connaissances potentiellement impactées à l’origine des modifications (qui sont les formes propres à l’écrit numérique), et tenté de (c) de savoir si le contexte de production influe sur la performance des adolescents. Dans un second temps, nous avons tenté de déterminer (d) si le niveau orthographique a un lien avec la production de modifications, (e) si certaines modifications sont plus à risque que d’autres, et (f) si l’exposition à l’écrit numérique en messagerie instantanée a des conséquences sur la qualité de la performance orthographique. Pour les besoins de cette thèse, les méthodologies appliquées ont été l’analyse de corpus, la comparaison de performances en fonction du support (normé et numérique), et en fonction du groupe (e.g., francophones et anglophones). Les premiers résultats ont d’abord montré que (a) l’écrit numérique en messagerie instantanée est plus proche du code oral que du code écrit, que (b) les connaissances potentiellement impactées (relatives à la valeur des lettres) sont celles qui permettent à la fois de produire de l’orthographe et des modifications, et que (c) le contexte de production (entre francophones et anglophones) influence autant la performance que la profondeur orthographique d’une langue. La seconde série de résultats a montré que (d) les adolescents qui disposent d’un niveau orthographique élevé produisent davantage de modifications que les adolescents qui disposent d’un niveau orthographique faible, (e) que les modifications qui peuvent être confondues avec des erreurs orthographiques sont plus à risque que celles qui ne le peuvent pas, et (f) que l’exposition à l’écrit numérique en messagerie instantanée chez les adolescents dont le niveau orthographique est faible et dont les connaissances orthographiques sont toujours en phase de consolidation a des conséquences négatives sur leur performance orthographique. Pour conclure, la nature de ce lien diffère en fonction du niveau orthographique des participants (même si le contexte de production influence la performance de façon inconditionnelle). D’un côté, elle s’avère négative pour les adolescents dont le niveau orthographique est faible et dont les connaissances orthographiques sont en cours de consolidation. La phonétisation de l’écrit, la production de modifications qui peuvent être confondues avec des erreurs orthographiques, et le risque associé lorsque les connaissances relatives à la valeur des lettres ne sont pas consolidées semblent être en cause. De l’autre, elle s’avère neutre pour les adolescents dont le niveau orthographique est élevé. / This thesis aims at defining the nature of the link between the use of digital writing in instant messaging and the quality of spelling performance. That is why it was necessary to understand what happens from a cognitive perspective when adolescents – who are exposed to the standards of spelling almost every day – produce standard and digital writing. We carried on with the research work that has been performed so far by dividing our analysis into two sections (the first that aims at deeply defining digital writing in instant messaging; the second at identifying the nature of the link that has been mentioned supra). First, we have defined (a) digital writing when it was used by adolescents, identified (b) the kind of knowledge which may be impacted and that allows producing modifications (which are the modified words in digital writing), and tried (c) to know whether the context of production has an influence on adolescent performance. Second, we tried to know (d) whether the spelling level is related to the production of modification, (e) whether using some modifications is more at risk than using others, and (f) whether being exposed to digital writing in instant messaging has consequences on the quality of spelling performance. For this thesis, we used different types of methodology by analyzing corpuses, comparing performances by taking the media into account (standard or digital) or the group (e.g., French speaking and English speaking). The first part of results showed that (a) digital writing in instant messaging is closer to the oral code than the written code, that (b) the kind of knowledge that may be impacted (related to the value of letters) corresponds to the one which allows producing both spelling and modifications, and that (c) the context of production (between French speaking and English speaking adolescents) has as much influence on performance than orthographic depth of a language. The second part of results showed that (d) the adolescents with a good spelling level produce more modifications than adolescents with a low spelling level, that (e) the modifications that can be confused with misspellings are more at risk than those that cannot, and that (f) being exposed to digital writing in instant messaging for adolescents whose spelling level is low and whose spelling knowledge is still being consolidated has negative consequences on spelling performance. To finish, the nature of the link differs according to the spelling level of participants (even if the context of production has an influence on performance unconditionally). On the one hand, it is proved to be negative for adolescents whose spelling level is low and whose spelling knowledge is still being consolidated. The phonetisation of writing, the production of modifications that can be confused with misspellings, and the associated risk when knowledge related to the value of letters is not yet consolidated have something to do with it. On the other hand, it is proved to be neutral for adolescents with a high spelling level.

A utilização da Internet cresceu amplamente nos últimos anos e tem propiciado o desenvolvimento de diversas ferramentas de comunicação via web. Têm se destacado, de maneira especial, as ferramentas que possibilitam a disponibilização online de conteúdos diversos, criados pelos próprios usuários, como as wikis. O sucesso obtido pelas wikis deve-se, em grande parte, à pequena quantidade de esforço necessário para a edição das páginas, indicando que esta característica é muito apreciada pelos usuários. Visando tornar o processo de edição de wikis ainda mais ágil, este trabalho apresenta uma proposta de como os mensageiros instantâneos podem auxiliar nesta tarefa. Assim, uma nova nova forma de interação no processo de edição de wikis, por meio de Mensageiro Instantâneo, foi projetada e implementada. Essa forma de interação proposta altera a forma de interação com wikis convencional, no sentido de possibilitar que o autor do conteúdo a ser editado na wiki não necessite mudar de seu ambiente de comunicação, que atualmente tem sido muito utilizado, o de troca de mensagens por meio do mensageiro instantâneo. Além disso, esta pesquisa possibilitou a identificação de diversas vantagens e desvantagens da utilização de bots de mensageiros instantâneos, encontradas na literatura, bem como durante os experimentos e estudos de caso realizados / The Internet usage has grown significantly in recent years and has fomented the development of several communication tools via web. Tools that make available the various online contents created by the users, such as wikis should be especially highlighted. The success achieved by wikis is due in large extent to the small amount of effort required to edit pages. This is an indicator that this feature is very appreciated by users. In order to make the editing process of wikis even faster, this work presents a proposal of using integrated Instant Messaging tools features with wikis. Thus, a new means of interaction in the process of editing in wikis, via Instant Messenger, was designed and implemented. This proposed means of interaction augments the way of interaction with conventional wikis, by enabling authors to edit the wiki content without having to shift from his/her communication environment in use. This proposal is supported by the fact that Instant Messaging systems have been widely used and adopted. Moreover, this research provides evidences to help the identification of advantages and disadvantages of the use of bots in Instant Messaging, from the results of the experiments and case studies conducted

Made available in DSpace on 2016-04-28T20:37:51Z (GMT). No. of bitstreams: 1 Maria da Conceicao Hatem de Souza.pdf: 4355379 bytes, checksum: e2053edeebcd311c31530e123c54287f (MD5) Previous issue date: 2011-10-07 / Cartography, inventing trajectories, giving way to affections and touch. Considering photography a method, this thesis project/process works as a device of luminous register, in the attempt of retorting the poetry of the instant. A Turner becoming, a tempest, wind, cloud becoming, wave. The luminous instant is cut out by the image register, and it draws a volume and contents a runaway point. Dissipating in order to constitute passages, real, physical and effective states, sensations. If it had to tell some happening, from which point would it leave? Or what point of view would be selected? What is the intensity of the narrative? Which device can be created to cope with the lived sensation? From these anxieties, I am invoked to create a method. The choice of recognizing and compounding a thesis as a device that allows the connection with the experience of the intensive. Making vibrate the sensation. Photographs, exhibitions, the constructing of narratives, fables, shapes that try to re-set not only the lived experience, but also the lived sensation. The cloud as a sensation being, the photograph that keeps inside itself the time of the light, the luminous intensity of the instant of a day. A child s play. A child-becoming , inventing shapes with clouds. New shapes, inconstant shapes that are transfigured by the winds, taking us to other territories. Simulacra of existence, a universe of possibilities / Cartografar, inventar trajetórias, dar passagem a afetos e afetar. Sendo a fotografia um método, que para este projeto/processo tese funciona como dispositivo do registro luminoso, na tentativa de replicar a poética do instante. Um devir Turner, tempestade, vento, devir nuvem, onda. O Instante luminoso recortado pelo registro imagético, desenha um volume e comporta um ponto de fuga. Dissipar para constituir passagem, estados reais, físicos, efetivos, sensações. Se tivesse que contar um acontecimento, de que ponto partiria? Ou qual o ponto de vista selecionar? Qual a intensidade narrar? Qual dispositivo inventar para dar conta da sensação vivida? A partir dessas inquietações sou convocada a inventar um método. A escolha de reconhecer e compor a tese como dispositivo que permita conectar com a experiência do intensivo. Fazer vibrar a sensação. Fotografias, exposições, a construção de narrativas, fabulações, formas que tentam reconfigurar não a experiência vivida e sim a sensação vivida. A nuvem como ser da sensação, a fotografia que conserva em si a hora da luz, a intensidade luminosa de um instante de um dia. Brincadeira de criança. Devir- criança, inventar formas com as nuvens. Novas formas, formas inconstantes que transfiguram ao sabor dos ventos e nos levam para outros territórios. Simulacros de existência, universo de possíveis

Submitted by William Justo Figueiro (williamjf) on 2015-07-02T23:56:28Z No. of bitstreams: 1 21.pdf: 1506795 bytes, checksum: c58347339bf9e62bad0d6c4e34a107a2 (MD5) / Made available in DSpace on 2015-07-02T23:56:28Z (GMT). No. of bitstreams: 1 21.pdf: 1506795 bytes, checksum: c58347339bf9e62bad0d6c4e34a107a2 (MD5) Previous issue date: 2012 / Nenhuma / A partir do legado filosófico de Søren Kierkegaard e de Jacques Derrida, busca-se no presente trabalho examinar as possíveis perspectivas de discussão que, com eles e a partir deles, podem ser conferidas à questão da justiça. Neste desiderato, inicialmente são trazidos à análise alguns dos principais temas por eles explorados, tais como angústia, repetição, instante, decisão e fé, em relação a Kierkegaard, e différance, dom, responsabilidade e segredo, em relação a Derrida. Paralelamente ao desenvolvimento destes temas, são eles relacionados, entre si e também na forma como eles se entrecruzam nas reflexões de Kierkegaard e de Derrida, bem como com as reflexões de outros filósofos, tais como Lévinas, Heidegger, Hegel, Montaigne, Pascal e Rousseau. Uma vez desenvolvidos estes entrecruzamentos e assentados, então, os balizadores entendidos necessários, apontam-se as possibilidades que, tanto em Kierkegaard, quanto em Derrida, anunciam-se como suficientemente coerentes para o endereçamento de uma discussão profícua da questão da justiça, ou, como se anuncia no título, da justiça da justiça. / This work deals with the legacy of Søren Kierkegaard and Jacques Derrida. Our search is in the sense of examining possible perspectives of discussion in the thought of these two authors concerning to justice. In this desideratum initially, are analyzed some of the main themes approached by Kierkegaard and Derrida such as, anguish, repetition, instant, decision and faith, and also différance, gift, responsibility and secret, specifically concerning to Derrida’s thought. In parallel to the development of this themes, they are connected in their content and also in the way that they cross themselves. Besides, they admit the contact with reflections of other philosophers like Lévinas, Heidegger, Hegel, Montaigne, Pascal and Rousseau. After the development of this discussions, possibilities are showed as coherent enough in Kierkegaard and Derrida which are really appropriated for approaching a discussion about Justice or, as it is announced in the title, about the justice of justice.