The Bridge: Pong Evolution describes the evolution of visuality in computer games in the symbolic way. The piece focuses on the most common elements used in graphics, gameplay, styles and technologies both in history and nowadays. Then it uses them in one single evolving environment. The work is also criticizing some contemporary (and past) trends commonly used in video games.

The Swedish truck industry is looking for new material solutions to achieve lighter engines with increased strength to meet customer demands and to fulfil the new regulations for more environmentally friendly trucks. This could be achieved by increasing the peak pressure in the cylinders. Consequently, a more efficient combustion is obtained and the exhaust lowered. This, however, exposes the engine to higher loads and material physical properties must therefore be enhanced. One material that could meet these demands is Compacted Graphite Iron (CGI). Its mechanical and physical properties make it ideal as cylinder block material, though there are drawbacks concerning its machinability as compared to other materials that are commonly used for the same purpose. Knowledge about machining of the material and its machinability is consequently inadequate. The main goal of this thesis is to identify and investigate the effect of the major factors and their individual contributions on CGI machining process behaviour. When the relationship between the fundamental features; machinability, material microstructure, and material physical properties, are revealed, the CGI material can be optimized, both regarding the manufacturing process and design requirements. The basic understanding of this is developed mainly through experimental analysis as, e.g., machining experiments and material characterization. The machining model presented in this thesis demonstrates the influence of material and process parameters on CGI machinability. It highlights machinability from both design and production planning perspectives. Another important objective of the thesis is an inverse thermo−mechanical FE model for intermittent machining of CGI. Here, experimental results obtained from a developed simulated milling method are used as input data, both to calibrate and validate the model. With these models, a deeper understanding is obtained regarding the way to achieve a stable process, which is the basis for future optimization procedures. The models can therefore be used as a foundation for the optimization of CGI component manufacturing. / <p>QC 20111121</p> / MERA - OPTIMA CGI / FFI - OPTIMA phase two

Le principal objectif de cette thèse était de mieux comprendre l'importance des Substances Polymériques Extracellulaires (SPE) dans la structuration et la formation des biofilms benthiques ; tout en s'inscrivant dans une étude plus globale des mécanismes écologiques impliqués dans le fonctionnement des vasières intertidales. La mise au point des dosages biochimiques a été effectuée sur le mucilage de l'algue Chaetomorpha aerea et a permis en parallèle de purifier un polysaccharide sulfaté riche en galactose, présentant une activité bactéricide sélective contre la souche Staphylococcus aureus (ATCC 25923). Les études biochimiques et écologiques menées sur les SPE extraits de la vasière charentaise ont ensuite permis de quantifier leur dynamique de production et leur composition, en fonction des conditions environnementales. La présence de désoxy-sucres et d'acides uroniques au sein des SPE capsulaires a laissé supposer que ces fractions jouaient un rôle important dans la formation et le devenir du biofilm microphytobenthique. La dernière partie des travaux a permis de caractériser les propriétés acide/base de Lewis et hydrophile/hydrophobe de la surface de la micro-algue Navicula jeffreyi, impliquée dans la formation de biofilms benthiques, par des méthodes classiques d'analyse. L'utilisation d'une nouvelle méthode, la Chromatographie Gazeuse Inverse (CGI), a permis d'obtenir des résultats intéressants et relativement similaires, confirmant le caractère prometteur de la CGI pour l'étude des propriétés de surface des micro-organismes.

Dopo l’avvento del sonoro e quello del colore, la settima arte sta attraversando una terza, forse più radicale, fase di rivoluzione: un vero e proprio tsunami che corrisponde all’avvento del digitale, dove il video insidia il primato della pellicola e la Computer Grafica è sempre più dilagante nel campo degli effetti speciali. Muovendosi all’interno di questo quadro di sostanziale cambiamento la presente ricerca, intitolata "Il corpo nell’era digitale: dal simulacro alla Performance Capture", si sofferma in particolare sull’analisi delle nuove prospettive che il corpo (attoriale) deve affrontare con la smaterializzazione dell’elemento organico. A partire da una panoramica storica sull’avvento del digitale nel cinema contemporaneo, si arriva a tracciare una linea evolutiva del corpo e del volto per meglio contestualizzare i campi di azione della Performance Capture. Il digitale e la Performance Capture sono fenomeni il cui sviluppo è ancora pienamente in atto, dagli esiti futuri ancora imprevedibili. Il proposito di questa ricerca è stabilire se il cinema stia diventando come paventa Lev Manovich, “a slave to the computer” o se, al contrario, le nuove tecnologie possano rafforzare le capacità artistiche, e perciò profondamente umane, del mezzo. / After the revolutionary phases brought by the introduction of sound and color, the seventh art is going through another, even more radical, renewal: the digital tsunami, where video is taking over the film and Computer Graphic is ruling the field of special effects. This project , situated inside a perspective of substantial change, is focused on the analysis of the role of the new actor and of his body, reconstructed after the disappearance of the organic elements in favor of the digital ones. Starting from an historical overview on the advent of digital cinema, this research aims to follow the development of Performance Capture, a technique capable to rewrite the rules of acting and directing. Digital moviemaking, CGI and Performance Capture, in particular, are phenomena in constant development, whose future effects are still not predictable. The purpose of this research is to establish whether cinema is becoming, like Manovich suggests, like Lev Manovich says, a “slave to the computer” , or if, on the contrary, new technologies will be able to strengthen its artistic, therefore human, sides.

ABSTRACT AN INVESTIGATION OF COMPACTED GRAPHITE IRON PRODUCTION BY MEANS OF THERMAL ANALYSIS TECHNIQUE AND OTHER PROCESS CONTROL WINDOWS El-mabrouk, Omar PhD, Metallurgical and Material Engineering Department Supervisor: Prof. Dr. Ali Kalkanli January 2007, 123 pages Compacted graphite irons have been proved valuable in many applications such as exhaust manifolds, hydraulic valves, and diesel engine blocks, the process of producing compacted graphite irons is not a straight forward process because of its narrow processing windows and its high sensitivity to the section thickness, treatment reaction time, pouring temperatures and charge composition. In this thesis, compacted graphite was produced with minimum variations through all section thickness and the effect of Mg/S ratio, section thickness, and treatment agents on the graphite morphology, electrical resistivity property and fracture strength at high temperatures was investigated. The range of Mg/S ratio and the section thickness was from 2/3 to 7/1 and 5 mm to 40 mm respectively. FeSiMg and FeSiMg cermish metal were used as a treatment agent. Optical metallographic method was implemented to investigate the graphite morphology change. For being a distinguishable characteristic for compacted graphite iron over ductile iron, thermal conductivity changes at high temperatures ranging from room temperature to 500 0C was examined by a suitable electrical setup in the manner of electrical conductivity changes by measuring the electrical resistance. On the other hand, due to the higher values of mechanical properties of compacted graphite iron over those of gray iron, tensile strength was also examined by means of tensile test. The relation between the compacted graphite shape and the alloy properties such as fracture strength and thermal conductivity was investigated. The most important controlling parameters to produce compacted graphite are Mg/S ratio and oxygen activity. The relation between these parameters with both fracture strength and thermal conductivity was established by means of multiple regression analysis technique.

Entre la première thèse en informatique graphique (soutenue en 1968) et la première publicité entièrement synthétique diffusée à la télévision (en 1983), les images de synthèse se transforment en “nouvelles images”. Il ne s’agit pas d’évaluer ces prétendues images nouvelles en fonction de leurs qualités distinctives de rupture ou de continuité que l’expression a tendance à appeler, mais d’étudier leur mode de production et de représentation afin de déterminer ce qu’elles montrent des techniques employées, et les imaginaires que ces dernières véhiculent au moment d’émergence de l’image numérique, comme autant de propositions créatives mais aussi d’enjeux idéologiques. Étudiées d’un point de vue technique puis esthétique, grâce à l’étude croisée de témoignages, de littérature grise, et de l’analyse formelle des films, ces productions donnent à voir un processus de réappropriation du médium, avant et après l’image. Si elle définit une histoire « officielle » des images de synthèse en France, en replaçant aussi précisément que possible les productions dans leur environnement technique, politique et culturel, cette thèse a finalement mis en évidence les temps des images de synthèse en tant que produit innovant, depuis leurs lieux de fabrication jusqu’à leurs lieux de légitimation. Ses conclusions mettent en jeu les différentes circulations locales des hommes, des outils et des images, au moment où la politique culturelle de 1981 favorise la jonction art-ordinateur, et l’indiscipline des créations. / Between the first PhD in computer graphics (defended in 1968) and the first entirely synthetic advertisement broadcast on television (1983), computer-generated images became “new images”. The aim is not to assess these so-called new images according to their distinctive qualities of rupture or continuity, as the expression would suggest, but rather to study their mode of production and representation in order to determine what they show from the techniques employed, and the imaginative worlds that they convey at the time of the emergence of digital images, like so many creative suggestions but also ideological issues. Studied first from a technical, then from an aesthetic point of view, thanks to the cross-study of testimonies, grey literature and a formal analysis of the movies, these productions show a process of recovery of the medium, before and after the image. This PhD not only defines an “official” history of computer-generated images in France, replacing as precisely as possible the productions in their technical, political and cultural environment, but it also reveals when computer-generated images are innovating products, from their places of fabrication to their places of legitimacy. The conclusions question the different local circulations of people, tools and images, at a time when the cultural policies of the year 1981 promotes the bond between art and computer, and the indiscipline of creations.

I denna uppsats beskrivs metoder för att skapa en arm i 3D samt att lägga in den i ett foto där den ersätter en riktigt arm. Anledningen till detta är att kunna skapa effekter i filmer och bilder som inte är möjliga med analog teknik. I denna uppsats kan man läsa om tekniker som används i varje del av utvecklingsprocessen och problem som uppstår samt lösningar och tips. I uppgiften finns det med delar som Modellering, Texturering, Rendering, Kamera Matchmoving och Compositing.

The goal of this project is to create a customized web browser to facilitate the skimming of documents by offsetting the document with relevant information. This project added techniques of learning information retrieval to automate the web browsing experience to the web texturizer. The script runs on the web texturizer website; and it allows users to quickly navigate through the web page.

Le mécanisme de solidarité traverse le droit fiscal. D’essence civile, la solidarité est intimement liée aux moyens de recouvrement dont dispose l’administration. S’agissant du dirigeant de société, sa « responsabilité pécuniaire » ou « solidarité patrimoniale » est actuellement suspendue à la décision du juge. Or, deux textes prévoient la solidarité du dirigeant selon qu’il s’agisse du juge de la responsabilité (LPF, art. L. 267) ou du juge répressif (CGI, art. 1745). Si ces deux dispositions sont indépendantes l’une de l’autre au motif qu’elles n’ont ni la même cause, ni le même objet, ni le même demandeur, il y a lieu de s’interroger sur leur portée respective, souligner leurs écueils et présenter les voies d’une réforme de la solidarité du dirigeant au passif fiscal. Il s’agit à la fois à rendre davantage efficace l’action en recouvrement de l’administration et garantir les droits dont dispose le dirigeant. La prégnance de la situation actuelle impose le pragmatisme : recouvrer le passif fiscal formé essentiellement par la TVA et suspendre la solidarité à l’intentionnalité des manquements à l’origine du passif fiscal dès la procédure d’assiette. / Joint liability is a recurrent feature of tax law. It is essentially a civil law mechanism which is closely bound to the means of recovery available to the revenue authorities. With respect to the company director, his “financial liability” or “joint pecuniary liability” currently depends on a court ruling. Two items of legislation provide for the director’s liability according to whether the matter is being heard before the civil courts (Article L. 267 of the LPF tax code) or the criminal courts (Article 1745 of the CGI tax code).Although those two provisions are independent from one another since they have neither the same legal basis, nor the same purpose and the person bringing the action is different, it is appropriate to question their respective scope, underline their pitfalls and present avenues for reform of the corporate manager’s joint liability for tax liabilities.The aim is both to make the revenue authority’s action for recovery more effective and to secure the corporate manager’s rights. The current situation requires pragmatism, for recovering tax liabilities resulting primarily from VAT and for suspending joint liability for intentionally causing tax liabilities from the time of the procedure of the determination of the tax base.

Gemeinsamer Workshop von Universitaetsrechenzentrum und Professur Rechnernetze und verteilte Systeme (Fakultaet fuer Informatik) der TU Chemnitz. Workshop-Thema: Infrastruktur der ¨Digitalen Universitaet¨ Es gibt viele Möglichkeiten, dynamische Web Inhalte zu erzeugen. Dieser Vortrag soll einen Überblick über Erweiterungsmöglichkeiten auf der Serverseite geben. Mit Hinblick auf Performance werden im Vergleich zum CGI eingebettete Interpreter beleuchtet und spezielle Scriptsprachen wie PHP,Perl oder Tcl genannnt.