Sökning: "b-value."

Visar resultat 1 - 5 av 11 uppsatser innehållade ordet b-value..

  1. 1. Mängden död ved i värdekärnor i Söderåsens nationalpark

    Master-uppsats, SLU/Southern Swedish Forest Research Centre

    Författare :Gustav Thurell; [2024]
    Nyckelord :volym död ved; stående död ved; liggande död ved; bokskog; nedbrytningsgrad; värdekärna;

    Sammanfattning : There is a lack of knowledge about the development of the dead wood in former production beech (Fagus sylvatica) forests that have been protected. The present study has been carried out in Söderåsen National Park to compare the distribution of dead wood in relatively unaffected beech forests that have been protected for a long time (A-value cores) and older, previously managed beech forest that has only been protected for 20-30 years (B-value cores). LÄS MER

  3. 2. Optimization of b-value Acquisition and Parameter Estimation of Intravoxel Incoherent Motion Measurements

    Master-uppsats, Lunds universitet/Sjukhusfysikerutbildningen

    Författare :Ivan Rashid; [2023]
    Nyckelord :Medicine and Health Sciences;

    Sammanfattning : Radiotherapy is commonly used for cancer treatment, given to approximately half of all cancer patients in Sweden. Despite its widespread usage, there is currently no non-invasive and reliable imaging method that can identify regions of radiation resistance. LÄS MER

  4. 3. N2 fixation of three legume species in an agroforestry system

    Master-uppsats, SLU/Dept. of Soil and Environment

    Författare :Hsiang-Ju Fan; [2023]
    Nyckelord :nitrogen; dinitrogen fixation; legumes; groundnut; stylo; pinto peanut; understorey crop;

    Sammanfattning : Due to the strong soil erosion caused by agricultural activities and sloping landscape, agroforestry has been introduced as a potentially sustainable cropping practice in the mountainous NW Vietnam. Using legumes as understorey crops in these systems has a potential to limit erosion and smother weeds, as well as provide additional nitrogen (N) to the system. LÄS MER

  5. 4. Thermal induced yellowing of peroxide bleached birch pulp

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Industriell miljö- och processteknik

    Författare :Alexander Nygren; [2020]
    Nyckelord :Accelerated ageing; Bleaching; Brightness reversion; Kraft pulp; pH; Yellowing;

    Sammanfattning : Brightness reversion, also known as yellowing, is a well-known phenomenon which means that the brightness of paper products decreases during ageing. The name of this phenomenon is based on that paper products usually change in color towards yellow during ageing. LÄS MER

  7. 5. Användbarheten av diffusionsviktade sekvenser vid MRT för att påvisa uteruscancer En litteraturstudie

    Uppsats för yrkesexamina på grundnivå, Luleå tekniska universitet/Institutionen för hälsovetenskap

    Författare :Anna Sveder; Martin Lindberg; [2018]
    Nyckelord :Uterus cancer; diffusion-weighted imaging; sensitivity; specificity; diagnostic accuracy; ADC; b-value.; Uteruscancer; diffusionsviktad MRT; sensitivitet; specificitet; diagnostisk noggrannhet; ADC; b-värde.;

    Sammanfattning : Inledning: Uteruscancer är den sjätte vanligaste cancerformen hos kvinnor i världen. Ny forskning pekar på att diffusionsviktad magnetresonanstomografi (MRT) kan vara en tillförlitlig undersökningsmetod för att detektera patologiska förändringar i uterus. LÄS MER