Sökning: "Laboratory plasma experiments"

Visar resultat 16 - 20 av 26 avhandlingar innehållade orden Laboratory plasma experiments.

1. 16. Autoionizing states and their relevance in electron-ion recombination

   Författare :Dragan Nikolić; Eva Lindroth; Gleb Gribakin; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Electron-ion recombination; Autoionization; Electron correlation calculations; Doubly excited states; Relativistic many-body perturbation theory; Coupled-cluster methodology; Intruder state problem; Physics; Fysik;

   Sammanfattning : Atomic physics plays an important role in determining the evolution stages in a wide range of laboratory and cosmic plasmas. Therefore, the main contribution to our ability to model, infer and control plasma sources is the knowledge of underlying atomic processes. LÄS MER

3. 17. Methods for detection of HIV-2/SIV infections

   Författare :Lilian Walther Jallow; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : The main objective of this thesis was to develop and improve laboratory methods for detection of HIV-2 in infected humans and detection of HIV-2/SIV in experimentally infected cynomolgus monkeys. Early in the HIV epidemic no assays were commercially available for detection of HIV-2/SIV infections and laboratory testing often relied on cross-reactivity in the assays. LÄS MER

4. 18. Stable bromine isotopic composition of methyl bromide : Method development and applications

   Författare :Axel Horst; Örjan Gustafsson; Detlef Schulz-Bull; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Applied Environmental Science; tillämpad miljövetenskap;

   Sammanfattning : The isotopic composition of ozone depleting methyl halides may provide valuable information on the sources and sinks of these compounds. However, so far mostly stable carbon isotope analysis of methyl chloride and methyl bromide (CH3Br) has been attempted. LÄS MER

5. 19. Study of Catalyst Deactivation in Three Different Industrial Processes

   Författare :Ann-Charlotte Larsson; Mehri Sanati; Ferruccio Trifiro; Växjö universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; deactivation; catalyst; SCR; VOC; steam reforming; aerosol particle; potassium; zinc; ash salts; biomass; organosilicon; Chemical engineering; Kemiteknik; Kemi; Chemistry;

   Sammanfattning : Deactivation of catalysts were investigated focusing on three industrial processes: 1) Selective Catalytic Reduction (SCR) for abatement of NOx from biomass combustion using V2O5-WO3 /TiO2 catalysts; 2) Catalytic oxidation of volatile organic compounds (VOC) from printing industries using a Pt/γ-Al2O3 catalyst; and 3) Ni and Pt/Rh catalysts used in steam reforming reaction of bio-syngas obtained from biomass gasification.The aim has been to simulate industrial conditions in laboratory experiments in order to comprehend influence of compounds affecting catalysts performance. LÄS MER

7. 20. Dissociative recombination of organic molecular ions of relevance for interstellar clouds and Titan's upper atmosphere

   Författare :Erik Vigren; Wolf D. Geppert; Ian Sims; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Dissociative recombination; Astrochemistry; Physics; Fysik; kemisk fysik; Chemical Physics;

   Sammanfattning : This thesis presents experimental studies on the dissociative recombination (DR) of the organic molecular ions CD3CND+, CH2CHCNH+, CH3CH2CNH+, CD3CDO+, CH3CHO+ and DCOOD2+. The experiments were all performed at the heavy ion storage ring CRYRING at the Manne Siegbahn Laboratory in Stockholm, Sweden. LÄS MER