Search for dissertations about: "assessments"

Showing result 11 - 15 of 942 swedish dissertations containing the word assessments.

  1. 11. Effect of Hyporheic Exchange on Conservative and Reactive Solute Transport in Streams Model Assessments Based on Tracer Tests

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Karin Jonsson; Uppsala universitet.; [2003]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; conservative; hyporheic exchange; model; reactive; retention; solute; sorption kinetics; stream transport; temporal moments; tracer experiment; Geovetenskap; NATURAL SCIENCES Earth sciences; NATURVETENSKAP Geovetenskap; Sedimentology; sedimentologi;

    Abstract : Understanding of the processes affecting solute transport in flowing water is important for the possibility to predict the evolution with time of polluted stream systems. This thesis presents tracer experiment methodology and model developments for solute transport in streams, with special focus on retention processes and their effect on solute stream transport. READ MORE

  2. 12. Biogas in Sweden - Opportunities and challenges from a systems perspective

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Mikael Lantz; Lunds universitet.; Lund University.; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biogas; Policy Instruments; Techno-economic assessments; Environmental assessments;

    Abstract : Popular Abstract in Swedish Biogas, som i huvudsak består av metan och koldioxid produceras när mikroorganismer bryter ned organiskt material utan tillgång till syre, så kallad rötning. I princip kan alla typer av organiskt material användas för att producera biogas men vanligast är till exempel avloppsslam, olika typer av avfall från hushåll och industrier, gödsel, grödor och odlingsrester. READ MORE

  3. 13. Statistical Modeling in International Large-scale Assessments

    University dissertation from Umeå : Umeå universitet

    Author : Inga Laukaityte; Umeå universitet.; [2016]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; multilevel model; plausible values; sampling weights; missing information; multiple imputation; non-monotone missing pattern; TIMSS; PISA; Statistics; statistik; Education; pedagogik;

    Abstract : This thesis contributes to the area of research based on large-scale educational assessments, focusing on the application of multilevel models. The role of sampling weights, plausible values (response variable imputed multiple times) and imputation methods are demonstrated by simulations and applications to TIMSS (Trends in International Mathematics and Science Study) and PISA (Programme for International Student Assessment) data. READ MORE

  4. 14. Fatigue assessments of components in construction equipment

    University dissertation from Institutionen för flygteknik

    Author : Anders Tjernberg; KTH.; [2001]
    Keywords : engineering mechanical;

    Abstract : The thesis refers to "Fatigue Assessment of Components inConstruction Equipment". The subject was chosen because ofincreasing interest in higher payloads, lower weight, highervelocities and shorter load cycles in construction equipmentvehicles. READ MORE

  5. 15. Assessments of Advertisements on Social Networking Sites

    University dissertation from Halmstad : Halmstad University Press

    Author : Hossam Deraz; Högskolan i Halmstad.; [2016]
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Internet Marketing; Advertisements; Social networking sites; Assessment of advertisements; National Culture; Brand communities;

    Abstract : Advertisements (ads) in social networking sites (SNSAs) have been considered by many researchers as a crucial area of research. However, the scope of the existing studies on consumers’ assessments of SNSAs has been very limited. READ MORE