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  1. 36. Hydrogeophysics of Tropical Africa : Recent advances and perspectives

    Författare :Elónio Muiuane; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Geovetenskap; Earth sciences; Geovetenskap; Geofysik med inriktning mot fasta jordens fysik; Geophysics with specialization in Solid Earth Physics;

    Sammanfattning : In the present work an attempt is made to put into perspective the hydrogeophysical investigations for rural water supply carried out over the last two decades in tropical Africa, paying special attention to groundwater targets in the weathered rocks in and above the crystalline basement. The applicability of geophysical techniques in groundwater investigations in tropical Africa, particularly the DC resistivity and electromagnetic techniques is discussed in the light of recent developments in instrumentation, data collection and interpretation procedures. LÄS MER

  3. 37. Parallel algorithms for real-time railway rescheduling

    Författare :Sai Prashanth Josyula; Johanna Törnquist Krasemann; Lars Lundberg; Mats Brorsson; Blekinge Tekniska Högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : In railway traffic systems, it is essential to achieve a high punctuality to satisfy the goals of the involved stakeholders. Thus, whenever disturbances occur, it is important to effectively reschedule trains while considering the perspectives of various stakeholders. LÄS MER

  4. 38. Modelling the Protein-DNA Interface

    Författare :Malin Lüking; Shina C. Lynn Kamerlin; Ehmke Pohl; Uppsala universitet; []
    Nyckelord :Protein-DNA interactions; Molecular Dynamics; Coarse-grained simulations; gene regulation; Biokemi; Biochemistry;

    Sammanfattning : Protein-DNA interactions are crucial to life. Several millions of DNA base pair steps are organ- ised, read and protected by proteins in every cell. Protein-DNA interactions must be specific, controllable and reasonably fast. Understanding how these features coexist is one of the great challenges for biochemists and molecular biologists. LÄS MER

  5. 39. Management of 1-D sequence data - from discrete to continuous

    Författare :Ling Lin; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Computer science; Datavetenskap;

    Sammanfattning : Data over ordered domains such as time or linear positions are termed sequence data. Sequence data require special treatments which are not provided by traditional DBMSs. Modelling sequence data in traditional (relational) database systems often results in awkward query expressions and bad performance. LÄS MER

  7. 40. Modern GIR Systems : Framework, Retrieval Model and Indexing Techniques

    Författare :Xing Lin; Yifang Ban; Harrie Lars; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Information Retrieval; GIR; Framework; Indexing; Retrieval Model; Other information technology; Övrig informationsteknik;

    Sammanfattning : Geographic information is one of the most important and the most common types of information in human society. It is estimated that more than 70% of all information in the world has some kind of geographic features. LÄS MER