Search for dissertations about: "Grading"

Showing result 6 - 10 of 218 swedish dissertations containing the word Grading.

  2. 6. Appearance grading of sawn timber

    Author : Anders Lycken; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wood Technology; Träteknik;

    Abstract : Grading of sawn timber has by tradition been performed by manual ocular inspection of the wood surfaces. Even today, most wood produced is graded by manual inspection. READ MORE

  4. 7. Thermally Modified Timber : Novel Aspects of Bending Behaviour Towards Grading and Structural Applications

    Author : Joran van Blokland; Stergios Adamopoulos; Anders Olsson; Jan Oscarsson; Mark Hughes; Linnéuniversitetet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; checks; cracks; digital image correlation; four-point static bending; fracture characteristics; grade determining properties; non-destructive testing; Norway spruce; machine learning; outdoor above-ground exposure; timber grading; scanning electron microscopy; scanning of fibre direction; strain distribution; ThermoWood®; weathering; Forestry and Wood Technology; Skog och träteknik; Byggteknik; Civil engineering;

    Abstract : Thermally modified timber (TMT) has gained market share in Europe as an environmentally friendly and durable building material. Unfortunately, TMT products are currently prohibited for use in structural applications as there is insufficient data to estimate the loss in strength due to thermal modification. READ MORE

  5. 8. Criterion-referenced measurement for educational evaluation and selection

    Author : Christina Wikström; Widar Henriksson; Roger Murphy; Umeå universitet; []
    Keywords : Assessment; Competition; Criterion-referenced; Education; Evaluation; Grading; Grade inflation; Measurement; Selection; Validity; Beteendevetenskapliga mätningar; pedagogik; Education;

    Abstract : In recent years, Sweden has adopted a criterion-referenced grading system, where the grade outcome is used for several purposes, but foremost for educational evaluation on student- and school levels as well as for selection to higher education. This thesis investigates the consequences of using criterion-referenced measurement for both educational evaluation and selection purposes. READ MORE

  6. 9. Modelling the Variability of Bending Strength in Structural Timber - Length and Load Configuration Effects

    Author : Tord Isaksson; Avdelningen för Konstruktionsteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; code; reliability-based design; Weibull; test standard; load configuration effect; length effect; weak section; machine grading; visual grading; variability; Structural timber; bending strength; simulation; monte carlo simulation.; Building construction; Byggnadsteknik;

    Abstract : The load carrying capacity of a beam of structural timber is dependent both on the span of the beam and the type of loading. The longer the beam and the more uniform the moment distribution, the lower the load carrying capacity. This phenomenon is due to the variability of material properties within a piece of timber. READ MORE

  7. 10. Essays in Education Economics

    Author : Jonas Lundstedt; Nationalekonomiska institutionen; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; grading; feedback; education outcomes; natural experiment; HBSC; signaling; human capital; student aid; parents;

    Abstract : This dissertation consists of three self-contained papers in the economics of education. The first chapter examines the effect of more informative feedback on student performance. READ MORE