April 29, 2011Für UnsShe had never before seen a rabbit with either a waistcoat-pocket, or a watch to take out of it, and burning with curiosity, she ran across the field after it Lewis CarrollThe following document, written under the supervision of Dr. reviewed by:

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Cette thèse est consacrée à l’étude de la transition liquide/solide amorphe. Cette transition se retrouve dans des systèmes thermiques (par exemple dans les verres moléculaires) ou athermiques (avec entre autres les milieux granulaires), à l’équilibre thermodynamique ou hors équilibre. Nous montrons que la transition de blocage et la transition vitreuse sont deux phénomènes distincts. Nous avons pour cela construit un modèle de sphères dures sur réseau de Bethe où ces deux transitions cohabitent. Nous introduisons également un modèle de verre structural avec désordre gelé qui possède un aspect champ moyen contrôlable. Cela nous permet de suivre l’évolution de la transition vitreuse dynamique entre le champ moyen et la dimension finie. Nous montrons également que ce modèle réalise en champ moyen une approximation de la dynamique comparable, mais pas équivalente, à la théorie de couplage de modes. Enfin, nous présentons quelques remarques théoriques portant sur l’analyse des modes normaux de suspensions colloïdales près de leur transition de blocage. pastel-00601408, version 1- 17 Jun 2011GLASS TRANSITION AND JAMMING TRANSITION:

Massively multiplayer online games (MMOGs) have become increasingly popular in the recent years, particularly in the form of online role-playing games (MMORPGs). These games support up to several ten thousand players interacting in a virtual game world. The current commercially successful games are client-server based, which is feasible for relatively slow role-playing games. Those have modest bandwidth and latency requirements and are paid for by their customers. For MMOGs with higher realtime requirements and/or a smaller number of customers willing to pay, peer-to-peer networking seems to be a serious alternative. This work analyzes the implementation of both a client-server and a peer-to-peer networking model for the prototype shooter game Planet π4. Initially, a survey introduces recent academic approaches to peer-to-peer systems specifically designed for games. Of those, one system is selected for implementation with Planet π4. Planet π4 is improved in several aspects for the purpose of analyzing various network implementations. First, its architecture is restructured and cleaned to allow for an easy replacement of the networking component. Second, its core is modified to work in a completely event-based mode, supporting the execution of the game in an discrete-event-based network simulator. Third, a simple artificial intelligence player is developed for workload generation in large (and possibly simulated) networks. Furthermore, the newly developed transport protocol CUSP is applied for the network implementation, thus the game is the first real application using CUSP. Finally the game Planet π4 is integrated with the CUSP network simulator, allowing to run the whole game in a simulated network without the need for modification of its core components. Kurzfassung Massen-Mehrspieler-Onlinespiele (Massively multiplayer online games; MMOGs) wurden in den vergangenen Jahren zunehmend populär, insbesondere in Form von Online-Rollenspielen (MMORPGs). In

1. Networking trends 2. QoS over data networks 3. Label switching 4. Gigabit, 10 Gb Ethernet, RPR 5. Storage area networks 6. IP over DWDM 7. Wireless 8. Voice over IP

I declare that this thesis is my own account of my research and contains as its main content work which has not previously been submitted for a degree at any tertiary education institution.

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pages 156–175, 2013. [2] Johannes Buchmann, Denise Demirel, and Jeroen van de Graaf. Towards a publicly-verifiable mix-net providing everlasting privacy. In Financial Cryptog-raphy, pages 197–204, 2013. [3] Denise Demirel, Jeroen van de Graaf, and Roberto Araùjo. Improving helios