Sökning: "tests"

Visar resultat 1 - 5 av 4105 avhandlingar innehållade ordet tests.

  1. 1. Computerized achievement tests : sequential and fixed length tests

    Författare :Marie H. Wiberg; Hans Nyquist; Ulf Olsson; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Statistics; item respons theory; sequential analysis; statistical inference; power; optimal design; simulations; Statistik; Statistics; Statistik; Statistics; statistik;

    Sammanfattning : The aim of this dissertation is to describe how a computerized achivement test can be constructed and used in practice. Throughout this dissertation the focus is on classifying the examinees into masters and non-masters depending on their ability. However, there has been no attempt to estimate their ability. LÄS MER

  3. 2. Thermal response tests : influence of convective flow in groundwater filled borehole heat exchanger

    Författare :Anna-Maria Gustafsson; Jeffrey D. Spitler; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Vattenteknik; Water Resources Engineering; VA-teknik; Urban Water Engineering;

    Sammanfattning : The main objective of this doctorial thesis was to investigate how thermally induced movements in the groundwater (natural convective flow) may influence the heat transport in borehole and surrounding bedrock in a groundwater filled borehole heat exchanger system. The purpose was also to determine if thermal response tests could be used to detect the convective influence and the effect on evaluated heat transfer parameters, effective bedrock thermal conductivity and borehole thermal resistance. LÄS MER

  4. 3. Processbarhet på prov : Bedömning av muntlig språkfärdighet hos vuxna andraspråksinlärare

    Författare :Maria Eklund Heinonen; Ulla Börestam; Hanna Lehti-Eklund; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Swedish as a second language; processability theory; oral language testing; communicative language ability; morphological development; syntactical development; interaction; Scandinavian languages; Nordiska språk;

    Sammanfattning : This dissertation concerns oral language tests from a grammatical perspective. Tests today are usually assessed based on a communicative approach to language, so it is interesting to see how great a significance the level of grammatical development of test takers has for their communicative competence in general. LÄS MER

  5. 4. Mechanical anchorage of prestressed CFRP tendons : theory and tests

    Författare :Anders Bennitz; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Structural Engineering; Konstruktionsteknik;

    Sammanfattning : Fibre Reinforced Polymers (FRPs) are slowly becoming important materials to consider also for a structural engineer. They are light-weight, insensitive to corrosion and have highly modifiable mechanical properties. LÄS MER

  7. 5. Well Testing, Methods and Applicability

    Författare :Jan-Erik Rosberg; Teknisk geologi; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; slug tests; well completion; re-injection; Well testing; pumping tests; injection tests; well development; pneumatic initiation; hydro-jetting; coiled tubing; tunnel lining; deep wells;

    Sammanfattning : Well testing is widely used today in water wells, oil and gas wells, for geothermal applications, within civil engineering projects, thermal storage and CO2 storage. The overall testing goal is to verify the productivity from a well and/or for characterization of hydraulic and thermal properties, as well as the spatial limitations of an aquifer. LÄS MER