Search for dissertations about: "physical web"

Showing result 1 - 5 of 151 swedish dissertations containing the words physical web.

  2. 1. Dryer Section Control in Paper Machines During Web Breaks

    Author : Jenny Ekvall; Mittuniversitetet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Dryer Section; Web breaks; Paper machine; steam pressure control; Physical modeling; Automatic control; Reglerteknik; Dryer section; paper machine; physical modeling; steam pressure control; web breaks;

    Abstract : Web breaks in the dryer section of a paper machine cause loss of production and quality problems. After a web break, the steam pressure in the cylinders must be reduced to avoid overheating. READ MORE

  4. 2. Bound by long-range interactions: Molecular crystals and benzene on Cu(111)

    Author : Kristian Berland; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; DFT; diffusion barriers; sparse matter; platonic hydrocarbons; molecular crystals; van der Waals density functional vdW-DF ; van der Waals forces; London-dispersion forces; self-assembly; hexamine; molecular overlayers; electronic structure; Friedel oscillations; soft matter; surface-mediated interactions; physiosorption;

    Abstract : This thesis investigates molecular systems bound by long-range interactions. Westudy molecular crystals held together by van der Waals forces and the physisorption of benzene (Bz) on Cu(111). READ MORE

  5. 3. Palaeo-ice streams in the north-eastern Laurentide Ice Sheet

    Author : Hernán De Angelis; Johan Kleman; Krister Jansson; Colm O'Cofaigh; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; ice sheet; ice stream; palaeo-ice sheet; palaeo-ice stream; glaciology; palaeoglaciology; Laurentide Ice Sheet; Physical geography; 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

  6. 4. Methods to Improve and Evaluate Spatial Data Infrastructures

    Author : Ara Toomanian; Centrum för geografiska informationssystem (GIS-centrum); []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Spatial data infrastructure; evaluation; balanced scorecard; geoportals; clearinghouse; web cartography; expert system; web services;

    Abstract : This thesis mainly focuses on methods for improving and evaluating Spatial Data Infrastructures (SDIs). The aim has been threefold: to develop a framework for the management and evaluation of an SDI, to improve the accessibility of spatial data in an SDI, and to improve the cartography in view services in an SDI. READ MORE

  7. 5. Numerical and Experimental Studies of Wakefield Accelerators

    Author : Henrik Ekerfelt; Atomfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; laser wakefield acceleration; betatron radiation; ionization-induced trapping; density down-ramp trapping; colliding pulse injection; direct laser acceleration; laser wakefield merging; particle-in-cell simulations; high-intensity optics; Fysicumarkivet A:2019:Ekerfelt;

    Abstract : This thesis is based on work done by the author on the development of laser wakefield accelerators.Wakefield acceleration in plasmas is a promising technique to provide the next generation of accelerating structures and particle beams. READ MORE