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Visar resultat 1 - 5 av 754 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Acoustic Noise and Echo Cancelling : Microphone Array Methods and Applications

    Författare :Mattias Dahl; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This Licentiate thesis is divided into three parts corresponding to three different papers. There is one research report, one conference paper and one submitted journal paper. All three parts deal with acoustic echo and/or noise cancelling problems when using adaptive microphone arrays. LÄS MER

  3. 2. Storage-Centric System Architectures for Networked, Resource-Constrained Devices

    Författare :Nicolas Tsiftes; Thiemo Voigt; Per Gunningberg; Chenyang Lu; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Internet of Things; wireless sensor networks; resource-constrained devices; file system; database management system; virtual machine; data compression; reprogramming; checkpointing; Datavetenskap; Computer Science;

    Sammanfattning : The emergence of the Internet of Things (IoT) has increased the demand for networked, resource-constrained devices tremendously. Many of the devices used for IoT applications are designed to be resource-constrained, as they typically must be small, inexpensive, and powered by batteries. LÄS MER

  4. 3. Exploring the future low-carbon electricity system: impacts of nuclear power and demand patterns

    Författare :Xiaoming Kan; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; net system cost; electricity supply mix; Low-carbon electricity system; variable renewable energy; nuclear power; electricity system cost; demand pattern; energy system modeling;

    Sammanfattning : To achieve the climate goals set by the Paris Agreement, the global electricity system is expected to transition towards a low-carbon electricity system. The future low-carbon electricity system is uncertain regarding both generation and demand. LÄS MER

  5. 4. Watt’s next? On socio-technical transitions towards future electricity system architectures

    Författare :Kristina Hojcková; Chalmers tekniska högskola; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; electricity system; transition pathways; innovation system context; technological innovation system; future configurations; entrepreneurial activities; socio-technical transition;

    Sammanfattning : In the effort to fight climate change, the electricity systems around the world are undergoing a transformation towards being based on renewable sources of energy.  The criterion of one hundred per cent renewables can, however, be satisfied in several radically different ways, varying from global or continental super grids via local smart-grids to self-sufficient off-grid communities and households of electricity prosumers. LÄS MER

  7. 5. Distributed File System Metadata and its Applications

    Författare :Mahmoud Ismail; Jim Dowling; Seif Haridi; Luis Veiga; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Informations- och kommunikationsteknik; Information and Communication Technology;

    Sammanfattning : Distributed hierarchical file systems typically decouple the storage and serving of the file metadata from the file contents (file system blocks) to enable the file system to scale to store more data and support higher throughput. We designed HopsFS to take the scalability of the file system one step further by also decoupling the storage and serving of the file system metadata. LÄS MER