Sökning: "GGM"

Hittade 4 uppsatser innehållade ordet GGM.

  1. 1. Modeling transport phenomena with COMSOL Multiphysics - Adsorptive membrane fouling in lignocellulosic biorefineries and lessons learned from it

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Linnéa Petersson; [2020]
    Nyckelord :QCM-D; Quartz crystal microbalance with dissipation monitoring; Hemicellulose; GGM; Galactoglucomannans; Adsorption; Membrane fouling; COMSOL; Chemical engineering; Kemiteknik; Technology and Engineering;

    Sammanfattning : The separation of hemicelluloses, like glactoglucomannans, from lignocellulosic process streams is an important step in building profitable lignocellulosic biorefineries. The most common method for the separation is membrane filtration, however, it has the draw-back of being sensitive to membrane fouling. LÄS MER

  3. 2. Determination of a gravimetric geoid model of Kazakhstan using the KTH-method

    Master-uppsats, KTH/Geodesi och geoinformatik

    Författare :Daniya Inerbayeva (Shoganbekova); [2010]
    Nyckelord :geoid model; least-squares modification of Stokes’ formula; the KTH-method; GPS Levelling; Kazakhstan;

    Sammanfattning : This study work deals with the determination of the gravimetric geoid model for Kazakhstan by using the KTH-method. A number of data sets were collected for this work, such as the gravity anomalies, high-resolution Digital Elevation Model (DEM), Global Geopotential Models (GGMs) and GPS/Levelling data. LÄS MER

  4. 3. Determination of a gravimetric geoid model of Sudan using the KTH method

    Master-uppsats, KTH/Geodesi och satellitpositionering

    Författare :Ahmed Abdalla; [2009]
    Nyckelord :;

    Sammanfattning : The main objective of this study is to compute a new gravimetric geoid model of Sudan using the KTH method based on modification of Stokes’ formula for geoid determination. The modified Stokes’ formula combines regional terrestrial gravity with long-wavelength gravity information provided by the global gravitational model (GGM). LÄS MER

  5. 4. Determination of a gravimetric geoid model of Greece using the method of KTH

    Master-uppsats, KTH/Geodesi och satellitpositionering

    Författare :IIias Daras; [2008]
    Nyckelord :;

    Sammanfattning : The main purpose of this study is to compute a gravimetric geoid model of Greeceusing the least squares modification method developed at KTH. In regional gravimetricgeoid determination, the modified Stokes’s formula that combines local terrestrial datawith a global geopotential model is often used nowadays. LÄS MER