Search for dissertations about: "Sheet"

Showing result 1 - 5 of 459 swedish dissertations containing the word Sheet.

  2. 1. Palaeo-ice streams in the north-eastern Laurentide Ice Sheet

    University dissertation from Stockholm : Institutionen för naturgeografi och kvartärgeologi

    Author : Hernán De Angelis; Stockholms universitet.; [2007]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; ice sheet; ice stream; palaeo-ice sheet; palaeo-ice stream; glaciology; palaeoglaciology; Laurentide Ice Sheet; NATURAL SCIENCES Earth sciences Exogenous earth sciences Physical geography; NATURVETENSKAP Geovetenskap Exogen geovetenskap Naturgeografi; geografi med naturgeografisk inriktning; Physical Geography;

    Abstract : This thesis presents a palaeoglaciological study aimed to determine the location, geometry and temporal evolution of palaeo-ice streams of the north-easternmost Laurentide Ice Sheet. The work was accomplished through the geomorphological interpretation of satellite imagery over 3. READ MORE

  4. 2. Numerical ice sheet modeling Forward and inverse problems

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Gong Cheng; Uppsala universitet.; Uppsala universitet.; [2019]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; ice sheet modeling; finite element method; grounding line migration; inverse problems; adjoint method; Scientific Computing; Beräkningsvetenskap;

    Abstract : Ice sheets have strong influence on the climate system. Numerical simulation provides a mathematical tool to study the ice dynamics in the past and to predict their contribution to climate change in the future. Large scale ice sheets behave as incompressible non-Newtonian fluid. READ MORE

  5. 3. Computational Ice Sheet Dynamics Error control and efficiency

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Josefin Ahlkrona; Uppsala universitet.; Uppsala universitet.; [2016]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; ice sheet modelling; stokes equations; shallow ice approximation; finite element method; perturbation expansions; non-newtonian fluids; free surface flow; Scientific Computing; Beräkningsvetenskap;

    Abstract : Ice sheets, such as the Greenland Ice Sheet or Antarctic Ice Sheet, have a fundamental impact on landscape formation, the global climate system, and on sea level rise. The slow, creeping flow of ice can be represented by a non-linear version of the Stokes equations, which treat ice as a non-Newtonian, viscous fluid. READ MORE

  6. 4. Wear in sheet metal forming

    University dissertation from Karlstad : Karlstad University

    Author : Anders Gåård; Karlstads universitet.; Karlstads universitet.; Karlstads universitet.; [2008]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY Materials science; TEKNIKVETENSKAP Teknisk materialvetenskap; Materialteknik; Materials Engineering; Friction; Sheet metal forming; Galling;

    Abstract : The general trend in the car body manufacturing industry is towards low-series production and reduction of press lubricants and car weight. The limited use of press lubricants, in combination with the introduction of high and ultra-high strength sheet materials, continuously increases the demands of the forming tools. READ MORE

  7. 5. Vibro-driveability -a field study of vibratory driven sheet piles in non-cohesive soils

    University dissertation from Stockholm : Byggvetenskap

    Author : Kenneth Viking; KTH.; [2002]
    Keywords : vibro-driveability; driveability; field tests; vibratory-equipment; sheet pile; interlock resistance; sheet pile instrumentation; dynamic soil resistance; non-cohesive soils;

    Abstract : .... READ MORE