Sökning: "Measurement theory"

Visar resultat 1 - 5 av 351 avhandlingar innehållade orden Measurement theory.

  1. 1. The value of travel time : theory and measurement

    Författare :Nils Bruzelius; Stockholms universitet; []

    Sammanfattning : .... LÄS MER

  2. 2. Motivational beliefs in the TIMSS 2003 context : Theory, measurement and relation to test performance

    Författare :Hanna Eklöf; Widar Henriksson; Simon Wolming; Svein Lie; Umeå universitet; []
    Nyckelord :test-taking motivation; TIMSS 2003; validity; construct validation; measurement; expectancy-value theory; self-concept; task value; factor analysis; eighth-grade students; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP;

    Sammanfattning : The main objective of this thesis was to explore issues related to student achievement motivation in the Swedish TIMSS 2003 (Trend in International Mathematics and Science Study) context. The thesis comprises of five empirical papers and a summary. LÄS MER

  3. 3. Price measurement and index construction : some contributions to theory and application

    Författare :Jörgen Dalén; Stockholms universitet; []

    Sammanfattning : Four different problems are treated, all concerned with problems arising when compiling price indexes in official statistics. One deals with the computation of so called elementary aggregates, low level indexes for single products, when proper weights for the observations are not available. LÄS MER

  4. 4. mm-Wave Data Transmission and Measurement Techniques: A Holistic Approach

    Författare :Dhecha Nopchinda; Chalmers University of Technology; []
    Nyckelord :estimation theory; data transmission experiment; spectral efficiency; microwave network analysis; communication system; millimeter wave mm-wave system; mutual coupling effects; spectrally efficient frequency division multiplexing SEFDM ; vector network analyzer; wideband measurement.; coherent optical system; impairment compensation algorithm; identification theory; multiplier based transmitter; digital signal processing; Active load pull; linear measurement technique;

    Sammanfattning : The ever-increasing demand on data services places unprecedented technical requirements on networks capacity. With wireless systems having significant roles in broadband delivery, innovative approaches to their development are imperative. LÄS MER

  5. 5. The measurement of chemical persistence in the field by benchmarking : Theory and Experiment

    Författare :Hongyan Zou; Michael McLachlan; Keri Hornbuckle; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; chemical benchmarking; persistence; half-lives; modeling; threshold benchmarking; Applied Environmental Science; tillämpad miljövetenskap;

    Sammanfattning : Persistence is one of the core criteria in chemical exposure and hazard assessment. It is often defined as the half-life for the removal of a chemical from a specified environment by transformation. Chemicals with long transformation half-lives may pose high risks for wildlife or humans and be subject to long-range transport to remote areas. LÄS MER