16 research outputs found

    EDISON – Study on optimal grid integration of electric vehicles

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    Electric Vehicle Fleet Integration in the Danish EDISON Project:A Virtual Power Plant on the Island of Bornholm

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    The Danish EDISON project has been launched to investigate how a large fleet of electric vehicles (EVs) can be integrated in a way that supports the electric grid while benefitting both the individual car owners and society as a whole through reductions in CO 2 emissions. The consortium partners include energy companies, technology suppliers and research laboratories and institutes. The aim is to perform a thorough investigation of the challenges and opportunities of EVs and then to deliver a technical platform that can be demonstrated on the Danish island of Bornholm. To reach this goal, a vast amount of research is done in various areas of EV technology by the partners. This paper will focus on the ICT-based distributed software integration, which plays a major role for the success of EDISON. Key solution technologies and standards that will accommodate communication and optimize the coordination of EVs will be described as well as the simulation work that will help to reach the goals of the project

    Nuclear import of dimerized ribosomal protein Rps3 in complex with its chaperone Yar1

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    After their cytoplasmic synthesis, ribosomal proteins need to be transported into the nucleus, where they assemble with ribosomal RNA into pre-ribosomal particles. Due to their physicochemical properties, they need protection from aggregation on this path. Newly synthesized ribosomal protein Rps3 forms a dimer that is associated with one molecule of its specific chaperone Yar1. Here we report that redundant pathways contribute to the nuclear import of Rps3, with the classical importin α/β pathway (Kap60/Kap95 in yeast) constituting a main import route. The Kap60/Kap95 heterodimer mediates efficient nuclear import of Rps3 by recognition of an N-terminal monopartite nuclear localization signal (NLS). This Rps3-NLS is located directly adjacent to the Yar1-binding site and, upon binding of Kap60 to Rps3, Yar1 is displaced from the ribosomal protein in vitro. While Yar1 does not directly interact with Kap60 in vitro, affinity purifications of Yar1 and Rps3, however, revealed that Kap60 is present in the Rps3/Yar1 complex in vivo. Indeed we could reconstitute such a protein complex containing Rps3 and both Yar1 and Kap60 in vitro. Our data suggest that binding of Yar1 to one N-domain and binding of Kap60 to the second N-domain of dimerized Rps3 orchestrates import and protection of the ribosomal protein

    Categorizing Computing Assets According to Communication Patterns

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    In today's dynamic information society, organizations critically depend on the underlying computing infrastructure. Tracking computing devices as assets and their usage helps in the provision and maintenance of an efficient, optimized service. A precise understanding of the operational infrastructure and its users also plays a key role during the negotiation of outsourcing contracts and for planning mergers and acquisitions. Building an accurate inventory of computing assets is especially difficult in unknown heterogeneous systems and networking environments without prior device instrumentation. User mobility and mobile, not-always-signed-on, computing devices add to the challenge. We propose to complement basic network-based discovery techniques with the combined log information from network and application servers to compute an aggregate picture of assets, and to categorize their usage with data-mining techniques according to detected communication patterns

    Enabling Mobile Network Managers

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    Network and system maintenance personnel are increasingly mobile. This creates a potential market for a network, system and service management terminal that is highly mobile, which would supplement existing network and system management solutions. This paper presents a generic architectural solution for this problem based on a highly scalable and network-centric approach to development of network management applications. Although the specific focus is on network management solutions, the results are generally applicable to many other types of applications as well. Some details and experiences from an actual implementation are described, using the Nokia 9000 Communicator and IBM Webbin' CMIP as the enabling technologies. Areas for future research are also explored. Keywords: Network Management, Internet Technologies, Mobile Devices. 1. The Need for Mobile Network Management Terminals Network Maintenance Operation Center (NMOC) personnel generally perform their duties by using sophisti..

    FlexLast: An IT-Centric Solution for Balancing the Electric Power Grid

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    Abstract—How can energy from renewable sources be integrated in large quantities into the power supply without overwhelming the grid? A collaboration between BKW, the electric utility in the Canton of Bern, IBM, Migros, Switzerland’s largest retailer and supermarket chain, and Swissgrid, the national grid operator is creating a unique solution that applies advanced algorithms to data on the state of the grid and large freezer warehouses to optimize and manage the consumption of power for cooling to help balance the grid. In this paper we describe the architecture of the system and examine the business case required to make this approach feasible. Keywords—smart grid; demand response; balancing power; energy data analytics; ICT for grid management; I
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