Sökning: "CORES"

Visar resultat 1 - 5 av 388 avhandlingar innehållade ordet CORES.

  1. 1. Investigation of Suffusion in Glacial Till Dam Cores : Testing methods and critical hydraulic gradients

    Författare :Ingrid Silva; Jan Laue; Peter Viklander; Thomas Pabst; Luleå tekniska universitet; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; internal erosion; suffusion; glacial till; dam cores; dams; experimental investigation; hydraulic gradient; testing methods; cohesionless soils; granular soils; Geoteknik; Soil Mechanics;

    Sammanfattning : Suffusion is an internal erosion mechanism that occurs in embankment dams when fine grained particles in the dam core are washed out by seepage. Initiation of internal erosion depends mainly on three major factors: grain size distribution of the soil, stress conditions and hydraulic gradient; whilst its continuation depends on the properties of the filter. LÄS MER

  2. 2. Development and Investigation of Reactivity Measurement Methods in Subcritical Cores

    Författare :Johanna Wright; Chalmers University of Technology; []
    Nyckelord :source modulation method; point kinetics; core loading; reactivity measurement; Feynman-alpha formulae; Accelerator Driven Systems ADS ; subcritical cores;

    Sammanfattning : Subcriticality measurements during core loading and in future accelerator driven systems have a clear safety relevance. In this thesis two subcriticality methods are treated: the Feynman-alpha and the source modulation method. LÄS MER

  3. 3. Suffusion of Glacial Till Dam Cores : An Experimental Investigation

    Författare :Ingrid Silva; Jan Laue; Peter Viklander; Cristina Jommi; Luleå tekniska universitet; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Geoteknik; Soil Mechanics;

    Sammanfattning : Suffusion, also called internal instability, is an internal erosion mechanism that occurs in embankment dams when fine-grained particles are washed out of the core soil matrix by seepage. Initiation of internal erosion depends mainly on three major factors: grain size distribution of the soil, stress conditions and hydraulic load; whilst its continuation depends of the filter properties. LÄS MER

  4. 4. Crackgeometry analysis in asphalt cores using computerised tomography

    Författare :Petra Offrell; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  5. 5. Language Constructs for Safe Parallel Programming on Multi-Cores

    Författare :Johan Östlund; Tobias Wrigstad; Ludovic Henrio; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Programming Languages; Type Systems; Ownership Types; Concurrency; Parallelism; Actors; Active Objects; Structured Parallelism; Data Race-Freedom; Immutability; Uniqueness; Datavetenskap; Computer Science;

    Sammanfattning : The last decade has seen the transition from single-core processors to multi-cores and many-cores. This move has by and large shifted the responsibility from chip manufacturers to programmers to keep up with ever-increasing expectations on performance. LÄS MER