Återbruket ligger mellan Järna och Södertälje i området Lerhaga. Byggnaden är placerad  invid Tvetavägen och i anslutning till Tveta Återvinningscentral. I Återbrukets lager sorteras återbrukbart material, från högarna på Tvetatippen, i olika kategorier på hyllor och i lådor så den behövande lätt kan hitta vad den söker. I huset hålls även föreläsningar, workshops och utställningar för att visa på alla möjligheter återvinning och återbruk skapar. Pick-up-lagret är Återbrukets ansikte utåt mot Tvetavägen. Förbipasserande trafikanter lockas att på ett smidigt sätt stanna till och köpa billigt och återbrukat material som lätt kan lastas in i bilen. Om du inte har en bil eller möjlighet att transportera materialet du köper finns det både släp och flyttbilar att låna, allt för att underlätta så lokalbefolkningen väljer återbruk framför att köpa nytt.Återbruket är byggt av återbrukat tegel och i så stor utsträckning som möjligt av återbrukat material. De träd som avverkats för att placera Återbruket på just den här specifika platsen har blivit byggmaterial till möblerna i huset. Det diagonala taket kom fram efter många olika versioner av vinklade sadeltak och tar inspiration från ladorna i närliggande bebyggelse. Taket ger de 3 delarna i byggnaden ett samspel och ger fasaderna ett uttrycksfullt möte med taket. Teglet ger Återbruket ett stationärt uttryck som visar på att storskaligt återbruk härmed är en given del i återvinningsprocessen och i Södertälje kommun. / House of Upcycling is located in between Järna and Södertälje in the area Lerhaga. The building is placed by Tvetavägen and in close proximity to Tveta Recycling Center. Reusable materials from Tveta Recycling Center are categorically sorted on shelves and in boxes in the House of Upcycling’s warehouse. This so that anyone in need easily can find what they are looking for. The house also offers lectures, workshops and exhibitions to show all the possibilities that recycling and upcycling creates. The by car-accessible pick-up warehouse is the House of Upcycling’s face outwards towards Tvetavägen. Passers-by are tempted to stop and buy cheap and recycled materials that they can easily load into their car. If you do not have a car or the opportunity to transport the material you buy, there are both trailers and trucks to borrow, all to make it easier for the locals to choose recycled over purchasing newly produced materials.The House of Upcycling is built from recycled brick and the furniture in the house were built with the wood from the trees that were chopped down to build the house on this specific site.The diagonal roof emerged after many different versions of angled saddle roofs and is inspired by the barns located nearby. The roof gives the 3 parts of the building an interplay and gives the facades an expressive meeting with the roof. The brick walls give House of Upcycling a stationary expression that shows that large-scale recycling hereby is a given part of the recycling process and in Södertälje municipality.

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There is an increasing demand for multimedia services in heterogeneous wireless networks. Considering the highly dynamic wireless channels and the relatively large size of the multimedia data, how to support efficient and reliable multimedia delivery is a pressing issue. In this dissertation, we investigate the multimedia delivery algorithms in heterogeneous wireless networks from three different aspects. First, we study the single-flow rate adaptation of video streaming algorithm over multiple wireless interfaces. In order to maintain high video streaming quality while reducing the wireless service cost, the optimal video streaming process with multiple links is formulated as a Markov Decision Process (MDP). The reward function is designed to consider the quality of service (QoS) requirements for video traffic, such as the startup latency, playback fluency, average playback quality, playback smoothness and wireless service cost. To solve the MDP in real time, we propose an adaptive, best-action search algorithm to obtain a sub-optimal solution. To evaluate the performance of the proposed adaptation algorithm, we implemented a testbed using the Android mobile phone and the Scalable Video Coding (SVC) codec and conducted experiments with real video flow. Then, with the multiple multimedia flows competing for limited wireless resources, we propose a utility-based scheduling algorithm for multimedia transmission in Drive-thru Internet. A utility model is devised to map the throughput to user's satisfaction level in terms of multimedia data quality, such as Peak Signal-to-Noise Ratio (PSNR) of video. The objective of the scheduling problem is to maximize the total utility. Then the optimization problem is formulated as a finite-state decision problem with the assumption that future arrival information is known, and it is solved by a searching algorithm as the benchmark. To obtain a real-time solution, a practical heuristic algorithm based on the concept of utility potential is devised. We further implemented the solution and conducted extensive simulations using NS-3. Finally, the multimedia dissemination problem in large-scale VANETs is investigated. We first utilize a hybrid-network framework to address the mobility and scalability issues in large-scale VANETs content distribution. Then, we formulate a utility-based maximization problem to find the best delivery strategy and select an optimal path for the multimedia data dissemination, where the utility function has taken the delivery delay, the Quality of Services (QoS) and the storage cost into consideration. We obtain the closed-form of the utility function, and then obtain the optimal solution of the problem with the convex optimization theory. Finally, we conducted extensive trace-driven simulations to evaluate the performance of the proposed algorithm with real traces collected by taxis in Shanghai. In summary, the research outcomes of the dissertation can contribute to three different aspects of multimedia delivery in heterogeneous wireless networks. First, we have proposed a real-time rate adaptation algorithm for video streaming with multiple wireless interfaces, to maintain the high quality while reducing the wireless services cost. Second, we have presented an optimal scheduling algorithm which can maximize the total satisfaction for multimedia transmission in Drive-thru Internet. Third, we have derived the theoretical analysis of the utility functions including delivery delay, QoS and the storage cost, and have obtained an optimal solution for multimedia data dissemination in large-scale VANETs to achieve the highest utility. / Graduate / 0984 / 0544