Sökning: "koncentration"

Visar resultat 16 - 20 av 258 avhandlingar innehållade ordet koncentration.

  1. 16. Experimental studies of large particles in Newtonian and non-Newtonian fluids

    Författare :Sagar Zade; Luca Brandt; Fredrik Lundell; Ellen Longmire; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; turbulence; finite-size; particle-laden flows; duct flow; pipe flow; viscoelastic fluid; viscoplastic fluid; Engineering Mechanics; Teknisk mekanik;

    Sammanfattning : In everyday human life, laminar flow is arguably an exception whereas turbulent flow is the norm. Yet, the former has been much better understood, naturally since laminar flow renders itself to treatment in a relatively easier fashion compared to turbulence with its chaotic dynamics across multiple scales in space and time. LÄS MER

  3. 17. Cleaning of ultra-high temperature milk fouling -Structural and compositionl changes

    Författare :Carin Hagsten; Fysikalisk kemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Fouling is the deposit of proteins and minerals formed on equipment surfaces during the heat treatment of dairy products. The concentrations of the components and the structure of the fouling reflect the processing conditions used. The use of a higher processing temperature, e.g. LÄS MER

  4. 18. Fertility and female dietary exposure to persistent organochlorine compounds

    Författare :Anna Axmon; Avdelningen för arbets- och miljömedicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; industrial medicine; Yrkesmedicin; arbetsmiljömedicin; Public health; epidemiology; Folkhälsa; epidemiologi; Occupational health; DDE; DDT; dioxins; polychlorinated biphenyls; persistent organochlorine compounds; stillbirths; miscarriages; Fertility; time to pregnancy;

    Sammanfattning : Persistent organochlorine compounds (POC), such as polychlorinated biphenyls (PCB) and dioxins, are long-lived and highly lipophilic compounds which are present in all biota today. In Sweden, one of the major exposure routes for POC is through the consumption of fatty fish from the Baltic Sea, which is off the east coast of Sweden, and one of the most highly exposed populations is the fishermen's wives and sisters from the east coast. LÄS MER

  5. 19. Role of Endogenous BDNF and NT3 for Synaptic Transmission and Plasticity in the Dentate gyrus

    Författare :Klara Olofsdotter; Malmö Institutionen för kliniska vetenskaper; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; hippocampus; dentate gyrus; GABA; glutamate; synaptic transmission; synaptic plasticity; Brain-derived neurotrophic factor; neurotrophin 3; Neurologi; neurophysiology; neuropsychology; Neurology; electrophysiology; neurofysiologi; neuropsykologi;

    Sammanfattning : The neurotrophins, notably brain-derived neurotrophic factor (BDNF) and neurotrophin 3 (NT3), modulate synaptic transmission and synaptic plasticity in the adult mammalian brain. Recent data suggest that neurotrophins might be mediators of activity-dependent synaptic plasticity. LÄS MER

  7. 20. Periferins micrópolis - genus, rum och fattigdom i Costa Rica

    Författare :Karin Grundström; Boende och bostadsutveckling; []
    Nyckelord :stadsdel; arkitektur; appropriation; Costa Rica; fattigdom; genderisering; genus; kvinnor; micrópolis; periferi; planering; plats; rumsliga praktiker; rum; slum; stadsutveckling; urbanisering; vardagsliv;

    Sammanfattning : I urbaniseringens fotspår materialiseras fattigdomen i slum, kåkstäder och favelas i städer värl-den över. Trots millenniemålen om att minska antalet invånare som lever i slum, visar statistik från FN-Habitat att urbaniseringstakten ökar och att städernas fattiga idag utgör en fjärdedel av världens stadsinvånare. LÄS MER