Sökning: "Nils Lundgren"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden Nils Lundgren.

  1. 1. Modelling microwave measurements in wood

    Författare :Nils Lundgren; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Träteknik; Wood Technology;

    Sammanfattning : This paper deals with physical modelling and control of dynamic foaming in the LD-converter process. An experimental setup consisting of a water model, DSP and PC hardware is built up and shown to be useful for studying dynamic foaming. Furthermore, a foam height estimation algorithm is presented and validated through experiments. LÄS MER

  3. 2. Internationella koncerner i industriländer : samhällsekonomiska aspekter : betänkande

    Författare :Nils Lundgren; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

    Sammanfattning : .... LÄS MER

  4. 3. Microwave sensors for scanning of sawn timber

    Författare :Nils Lundgren; Olle Hagman; Gary Schajer; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; microwave scanning; wood; density; moisture content; strength grading; finite element; Electronic measurement and instrumentation; Elektronisk mät- och apparatteknik; Träteknik;

    Sammanfattning : A microwave imaging sensor that measures the signal transmitted through a board was investigated with respect to the ability to predict the distribution of moisture and density in sawn lumber. Furthermore, the response from the sensor was related to strength properties of the boards. LÄS MER

  5. 4. Skog för export : skogsarbete, teknik och försörjning i Lule älvdal 1870-1970

    Författare :Nils-Gustav Lundgren; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Forestry work; technology; determination of income; regional economics;

    Sammanfattning : The forestry industry played an important role in the industrialization of the Swedish economy in the late 19th century. The aim of this study is to deed with the determination of income and wages in the forestry regions where the sawmills and pulp industries found their raw material supplies. LÄS MER

  7. 5. Coxsackievirus B3 Infection and Host Defence Responses Change the Metabolism of PBDE

    Författare :Magnus Lundgren; Nils-Gunnar Ilbäck; Hans Tjälve; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Coxsackievirus; environmental pollutants; PBDE; cytokines; chemokines; metabolism; infection; tissue distribution; toxicology; virology; immunology; Toxicology; Toxikologi; Virology; Virologi; Medicine; medicin;

    Sammanfattning : It has been suggested that the rising amounts of chemicals in the environment may affect host resistance and increase susceptibility to infections. Studies have also shown that infections can change the toxicity of pollutants. LÄS MER