Sökning: "Interaktioner"

Visar resultat 26 - 30 av 375 avhandlingar innehållade ordet Interaktioner.

  1. 26. Multi-Meson Dynamics in Chiral Perturbation Theory

    Författare :Mattias Sjö; Partikel- och kärnfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Spridningsamplituder; Effektiv Fältteori; Spontant symmetribrott; Ickelinjära sigmamodellen; Kirala Lagrangianer; Hadronspektroskopi; Strukturer och Interaktioner; Gitter-QCD; Scattering amplitudes; Effective Field Theories; Spontaneous Symmetry Breaking; Nonlinear sigma model; Chiral Lagrangians; Hadronic Spectroscopy; Structure and Interactions; Lattice QCD;

    Sammanfattning : This thesis concerns scattering of light mesons in the case where the number of external particles exceeds four (that is, three or more particles in the initial or final state), calculated using chiral perturbation theory.This is both of theoretical interest in the study of scattering amplitudes, and relevant for systems of three or more pions simulated using lattice quantum chromodynamics. LÄS MER

  3. 27. A song of ice and mud : Interactions of microbes with roots, fauna and carbon in warming permafrost-affected soils

    Författare :Sylvain Monteux; Ellen Dorrepaal; Frida Keuper; James T. Weedon; Joshua Schimel; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; microbial communities; permafrost; functional limitations; rhizosphere; SOM decomposition; soil fauna; climate change; carbon dioxide;

    Sammanfattning : Permafrost-affected soils store a large quantity of soil organic matter (SOM) – ca. half of worldwide soil carbon – and currently undergo rapid and severe warming due to climate change. LÄS MER

  4. 28. Psykets laboratorium : Skildringar av drogexperiment i Weimarrepubliken

    Författare :Isabelle Ståhl; Victoria Fareld; Staffan Bergwik; Torbjörn Gustafsson Chorell; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Self Experiment; Literature and Science studies; Interwar Period; Weimar Republic; Philosophy; Psychosis; Subjective experience; Drug protocols; Germany; Psychiatrists; Literatur und Wissen; Walter Benjamin; Rausch; Interaktioner mellan psykiatri och litteratur; Inlevelseorienterade perspektiv i psykiatri; Psykologi; Drogexperiment; Psykiatriker; History of Ideas; idéhistoria;

    Sammanfattning : Psykets laboratorium – skildringar av drogexperiment i Weimarrepubliken investigates texts produced during psychiatric self-experiments with psychedelic drugs in the Weimar Republic in the 1920s, featuring the philosopher Walter Benjamin (1892-1940) as a research subject. In these self-experiments, physicians and volunteer subjects wrote down their experiences of psychotic states that were evoked through the use of psychedelic drugs. LÄS MER

  5. 29. Virus-host interactions in HIV-1 and HIV-2 infections

    Författare :Emil Johansson; HIV-1 och HIV-2 värd interaktioner; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; HIV-1; HIV-2; Viraemia; Disease Progression; Immune perturbations; Plasma proteomics;

    Sammanfattning : .... LÄS MER

  7. 30. Study on Metallic Melt Coolant Interactions and Debris Bed Formation in a Water Pool

    Författare :Yan Xiang; Weimin Ma; Sevostian Bechta; Andrei A. Komlev; Michael Buck; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Severe accident; fuel coolant interactions; metallic melt; jet fragmentation; debris bed; CLSVOF.; Svåra haverier; interaktioner mellan bränsle och kylmedel; metallsmälta; jetfragmentering; grusbädd; CLSVOF; Kärnenergiteknik; Nuclear Engineering;

    Sammanfattning : To assess corium coolability during severe accidents of LWR, significant number of studies have been conducted previously to investigate the characteristics of debris beds formed from FCI due to fragmentation of molten corium and settlement of the fragments in a water pool. However, their focus has been placed on the oxidic component (UO2/ZrO2) of corium, while little attention has been paid to the debris bed formation due to FCI of the metallic component (Zr/Fe) of corium. LÄS MER