Sökning: "Tracer"

Visar resultat 11 - 15 av 340 avhandlingar innehållade ordet Tracer.

  1. 11. Gas mixing in circulating fluidised bed risers

    Författare :Johan Sternéus; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; circulating; dispersion; gas mixing; fluidization; tracer; wall-layer; fluidized beds;

    Sammanfattning : .... LÄS MER

  3. 12. Deposit-feeding in benthic macrofauna : Tracer studies from the Baltic Sea

    Författare :Lars Byrén; Ragnar Elmgren; Lisa A. Levin; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Deposit-feeding; Macrofauna; Baltic Sea; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi;

    Sammanfattning : A low content of organic matter, which is largely refractory in nature, is characteristic of most sediments, meaning that aquatic deposit-feeders live on a very poor food source. The food is derived mainly from sedimenting phytodetritus, and in temperate waters like the Baltic Sea, from seasonal phytoplankton blooms. LÄS MER

  4. 13. Methanol Masers: Tracer of Star Formation

    Författare :Vincent Minier; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The Onsala VLBI group has been conducting an extensive study of the Northern hemisphere methanol masers using the European VLBI Network (EVN) and the VLBA since early 1997. In parallel, a blind survey of the Galactic plane has been undertaken in order to discover new 6. LÄS MER

  5. 14. Exploring Palladium-Mediated 11C/12C-Carbonylation Reactions : PET Tracer Development Targeting the Vesicular Acetylcholine Transporter

    Författare :Sara Roslin; Mats Larhed; Gunnar Antoni; Jonas Eriksson; Luke Odell; Victor Pike; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Carbonylation; palladium; carbon-11; radiochemistry; positron emission tomography; vesicular acetylcholine transporter; vesamicol; alkyl halide; oxidative carbonylation; acylamidine; oxadiazole; heterocycle; Farmaceutisk vetenskap; Pharmaceutical Science;

    Sammanfattning : The work presented herein describes the utilization and exploration of palladium-mediated incorporations of carbon monoxide and/or [11C]carbon monoxide into compounds and structural motifs with biological relevance.The first part of the thesis describes the design, synthesis and 11C-labeling of prospective PET tracers for the vesicular acetylcholine transporter (VAChT), a target affected in several neurodegenerative diseases. LÄS MER

  7. 15. Lattice Boltzmann simulations of tracer diffusion in microswimmer suspensions

    Författare :Henrik Nordanger; Fysikalisk kemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Lattice Boltzmann; microswimmers; active matter; enhanced diffusion;

    Sammanfattning : Suspensions of microswimmers are a class of systems inherently out of equilibrium, due to the mechanical work continuously performed by a large number of active agents. Biological examples are plentiful, as many aquatic microorganisms have the ability to propel themselves. LÄS MER