This thesis presents an improved method for dynamic force computation applicable to both electrostatic and electromagnetic conductors with complex 3D geometries. During the transient simulation of electrostatic actuated MEMS, the positions of the conductors as well as the potential applied to the conductors may change, necessitating recalculation of electrostatic forces at each time step of computation. Similarly, during the simulation of electromagnetic actuated MEMS, the current re-distribution in the conductors requires recalculation of electromagnetic forces at each time step. In this thesis, a simple method based on the principles of fast multipole algorithm is explored to effectively recalculate the potential coefficients to compute the surface charges and thereby forces during transient simulation of electrostatic conductors. The proposed method improves the speed of electrostatic force computation by 15 - 60% at each time step, depending on the displacement, with an error less than 3%. Electromagnetic forces are also computed by the same method. In addition, an efficient method is also presented for electrostatic analysis of dummy metal filled interconnects.

No description available.

Zugl.: Berlin, Techn. University, Diss., 2006.

Zugl.: Berlin, Techn. University, Diss.

<p>Denna rapport är utförd av studenterna Josef Eid och Sebastian Svensson och gäller examensarbetet på 15 poäng som ägde rum vårterminen 2005. Examensarbetet var den slutgiltiga kursen på utbildningen Innovations- och designingenjörsprogrammet (120 poäng) på Karlstads Universitet. Arbetets uppdragsgivare var företaget Woodstar AB. Kontaktperson på företaget var Tommy Andersson och handledare i kursen var Lennart Wihk på universitetet.</p><p>Företaget Woodstar tillverkar fordon anpassade för rörelsehindrade personer. Företaget låg i slutskedet med utvecklandet av det nya fordonet Woodstar Extreme, som är en banracer. Woodstar Extreme har syftet att fylla ett behov samt att förverkliga en dröm om att gemensamt och integrerat kunna idka motorsport på lika villkor, oavsett rörelsehinder.</p><p>Huvuduppgiften var att ta fram en design till banracerns karosseri. Studenterna tog fram ett koncept som innebar en heltäckande kaross med en separat kåpa. Hela karosseriet lyfts bort som en enda enhet vid behov, till exempel då en rörelsehindrad ska stiga på. Kåpan kan tas av separat eller följa med hela karossen. Karossen kommer att ha ganska låg vikt eftersom den görs i lätt glasfiber. Designen upplevs svara mot de semantiska kraven på en klassisk sportvagn med ett unikt utseende. Den är även aerodynamiskt godkänd med luftintag fram och på sidan, samt luftuttag baktill. Detta visualiserades med en animering, en digital modell och en plastmodell.</p><p>Josef och Sebastian tillverkade även själva pluggen till karossen vilken Woodstar skulle göra glasfiberkaross av. Studenterna kommer att fungera som handledare och assistera företaget fram tills karossen blir slutförd.</p><p>Redovisningen av projektet gick bra men utställning var något medioker. Pluggen tog längre tid än planerat, främst på grund av onödig tid på finslipning av pluggen. Studenterna tog på sig för mycket arbete (hade räckt med konceptframtagning), men de har med sitt engagemang för projektet skapat sina förutsättningar själva. De har lärt sig en hel del och haft riktigt kul. Parterna har haft ett bra samarbete i detta digra men vällyckade projekt.</p> / <p>This report was written in the spring 2005 at Karlstad University by Josef Eid and Sebastian Svensson. The report contains their examination work (15 points) which was the final course in their education, Bachelor of Science in Innovation and Design Engineering. The assigner for this project was the company Woodstar AB. Tommy Andersson was their contact at Woodstar and Lennart Wihk was their examiner at the university.</p><p>Woodstar manufactures vehicles adjustable for disabled persons. The Company was in the final stages in developing their Woodstar Extreme, which is a new racing car for tracks. Woodstar Extreme has the purpose to fulfil a need and to carry out the dream that people can practise motor sport on the same conditions, irrespective of disabilities.</p><p>The main task for this project was to design a body for the Woodstar Extreme. The students designed a concept which implied a single body covering the racer with a separate cover in the back. The body can be lifted off in one part when needed, for example when a disabled person gets in or out of the car. The cover in the back can be lifted off separate or together whit the whole body. The body will be light due to the glass fibre construction that will be used. The semantic demands of a classic sport car with a unique look were accomplished. The design’s aerodynamic features, with air inlet in the front and on the sides and air outlet in the back, have been approved. The racing car was presented with a digital model and animation and a plastic model.</p><p>Josef and Sebastian also manufactured the dummy for the body, which Woodstar will use to make the glass fibre bodies of. Until the body is concluded the students will act as advisors and assistants for Woodstar.</p><p>The presentation of the project went well but the exhibition was a bit mediocre. The manufacturing of the dummy took longer time then planed, due to the unnecessary polishing of dummy. The students took to much work on them selves (have been enough with a conceptual design of product), but due to their engagement they created their own conditions. During this project they had a lot of fun and learned many grateful things. Both students and the company had a great cooperation in this genuine and well made project.</p>

Denna rapport är utförd av studenterna Josef Eid och Sebastian Svensson och gäller examensarbetet på 15 poäng som ägde rum vårterminen 2005. Examensarbetet var den slutgiltiga kursen på utbildningen Innovations- och designingenjörsprogrammet (120 poäng) på Karlstads Universitet. Arbetets uppdragsgivare var företaget Woodstar AB. Kontaktperson på företaget var Tommy Andersson och handledare i kursen var Lennart Wihk på universitetet. Företaget Woodstar tillverkar fordon anpassade för rörelsehindrade personer. Företaget låg i slutskedet med utvecklandet av det nya fordonet Woodstar Extreme, som är en banracer. Woodstar Extreme har syftet att fylla ett behov samt att förverkliga en dröm om att gemensamt och integrerat kunna idka motorsport på lika villkor, oavsett rörelsehinder. Huvuduppgiften var att ta fram en design till banracerns karosseri. Studenterna tog fram ett koncept som innebar en heltäckande kaross med en separat kåpa. Hela karosseriet lyfts bort som en enda enhet vid behov, till exempel då en rörelsehindrad ska stiga på. Kåpan kan tas av separat eller följa med hela karossen. Karossen kommer att ha ganska låg vikt eftersom den görs i lätt glasfiber. Designen upplevs svara mot de semantiska kraven på en klassisk sportvagn med ett unikt utseende. Den är även aerodynamiskt godkänd med luftintag fram och på sidan, samt luftuttag baktill. Detta visualiserades med en animering, en digital modell och en plastmodell. Josef och Sebastian tillverkade även själva pluggen till karossen vilken Woodstar skulle göra glasfiberkaross av. Studenterna kommer att fungera som handledare och assistera företaget fram tills karossen blir slutförd. Redovisningen av projektet gick bra men utställning var något medioker. Pluggen tog längre tid än planerat, främst på grund av onödig tid på finslipning av pluggen. Studenterna tog på sig för mycket arbete (hade räckt med konceptframtagning), men de har med sitt engagemang för projektet skapat sina förutsättningar själva. De har lärt sig en hel del och haft riktigt kul. Parterna har haft ett bra samarbete i detta digra men vällyckade projekt. / This report was written in the spring 2005 at Karlstad University by Josef Eid and Sebastian Svensson. The report contains their examination work (15 points) which was the final course in their education, Bachelor of Science in Innovation and Design Engineering. The assigner for this project was the company Woodstar AB. Tommy Andersson was their contact at Woodstar and Lennart Wihk was their examiner at the university. Woodstar manufactures vehicles adjustable for disabled persons. The Company was in the final stages in developing their Woodstar Extreme, which is a new racing car for tracks. Woodstar Extreme has the purpose to fulfil a need and to carry out the dream that people can practise motor sport on the same conditions, irrespective of disabilities. The main task for this project was to design a body for the Woodstar Extreme. The students designed a concept which implied a single body covering the racer with a separate cover in the back. The body can be lifted off in one part when needed, for example when a disabled person gets in or out of the car. The cover in the back can be lifted off separate or together whit the whole body. The body will be light due to the glass fibre construction that will be used. The semantic demands of a classic sport car with a unique look were accomplished. The design’s aerodynamic features, with air inlet in the front and on the sides and air outlet in the back, have been approved. The racing car was presented with a digital model and animation and a plastic model. Josef and Sebastian also manufactured the dummy for the body, which Woodstar will use to make the glass fibre bodies of. Until the body is concluded the students will act as advisors and assistants for Woodstar. The presentation of the project went well but the exhibition was a bit mediocre. The manufacturing of the dummy took longer time then planed, due to the unnecessary polishing of dummy. The students took to much work on them selves (have been enough with a conceptual design of product), but due to their engagement they created their own conditions. During this project they had a lot of fun and learned many grateful things. Both students and the company had a great cooperation in this genuine and well made project.

The goal of the thesis is to improve the existing Editor and Simulator applications that have been created by the autor as his Bachelor Thesis. Document speaks about the main aspects of bridge; about the auction and the bridge play. The whole document is based on the author's Bachelor Thesis which is frequently referenced in the document. Nevertheless, the document should be readable without any previous knowledge of author's former work. The author is discussing his effort to create logic expressions to describe bridge hands and truths in the bridge world. These expressions are then used to construct auction conventions and whole auction systems. The author is discussing the bridge problems and presenting the improved algorithm to solve double-dummy problems. The work also describes the software from the engineering point of view and speaks about the graphic user interface of both programmes.

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This thesis is a morphosyntactic description of the Australian language Mawng with a focus on verbal gender agreement and its lexicalisation. Mawng’s five genders have a strong semantic basis. In verbs with lexicalised agreement, a verbal pronominal prefix that usually indexes a core argument of a particular gender instead functions to specify a particular sense of the verb. Such verbs form a significant portion of the verbal lexicon in Mawng. An investigation of these verbs requires an updated description of Mawng, which has not been the object of linguistic study for some time. A non-Pama Nyungan language of the Iwaidjan language family, Mawng is still spoken by around three hundred people living on the north-west coast of Arnhem land, Northern Territory, Australia. This description is based on new fieldwork carried out at Warruwi (Goulburn Island) and adds to what was previously known about the Mawng language. Complex verb constructions, reciprocal constructions, argument structure, complex sentences, NP structure, the semantic basis of the gender system and the nature of verbal agreement are some of the topics explored in greater detail in this thesis than previously available materials. Lexicalised agreement was not discussed in previous work on Mawng.

Zugl.: Bochum, Univ., Diss., 2009