Sökning: "Stefan Schmidt"

Hittade 4 avhandlingar innehållade orden Stefan Schmidt.

  1. 1. Dark Matter Phenomenology in Astrophysical Systems

    Författare :Stefan Clementz; Mattias Blennow; Kai Schmidt-Hoberg; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fysik; Physics;

    Sammanfattning : There is now a great deal of evidence in support of the existence of a large amount of unseen gravitational mass, commonly called dark matter, from observations in astrophysical systems of sizes ranging from that of dwarf galaxies to the scale of the entire Universe. One of the most promising explanations for this unseen mass is that it consists of a species of unobserved elementary particles. LÄS MER

  3. 2. Wafer-level heterogeneous integration of MEMS actuators

    Författare :Stefan Braun; Göran Stemme; Martin A. Schmidt; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Microelectromechanical systems; MEMS; silicon; wafer-level; integration; heterogeneous integration; transfer integration; packaging; assembly; wafer bonding; adhesive bonding; eutectic bonding; release etching; electrochemical etching; microvalves; microactuator; Shape Memory Alloy; SMA; NITINOL; TiNi; NiTi; cold-state reset; bias spring; stress layers; crossbar switch; routing; switch; switch array; electrostatic actuator; S-shaped actuator; zipper actuator; addressing; transfer stamping; blue tape; Computer engineering; Datorteknik;

    Sammanfattning : This thesis presents methods for the wafer-level integration of shape memory alloy (SMA) and electrostatic actuators to functionalize MEMS devices. The integration methods are based on heterogeneous integration, which is the integration of different materials and technologies. LÄS MER

  4. 3. Growth rate control of periplasmic product retention in Escherichia coli

    Författare :Emma Bäcklund; Gen Larsson; Stefan Schmidt; Amelie Eriksson Karlström; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Escherichia coli; fed-batch; outer membrane proteins; recombinant proteins; specific growth rate; periplasmic retention; phosphotransferase system; high cell density cultivation; acetate formation; Bioengineering; Bioteknik;

    Sammanfattning : The recombinant product is secreted to the periplasm in many processes where E. coli is used as host. One drawback with secretion is the undesired leakage of the periplasmic products to the medium. The aim of this work was to find strategies to influence the periplasmic retention of recombinant products. LÄS MER

  5. 4. Ariska idoler : Den indoeuropeiska mytologin som ideologi och vetenskap

    Författare :Stefan Arvidsson; Stefanie von Schnurbein; Växjö universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Wilhelm Schmidt; George Dumézil; Aryan; Indo-European; History of Religion; Mythology; Myth; Historiography; Humanities; Ideology; Philology; Old Norse Myth; Germanic Religion; Vedic Religion; Friedrich Max Müller; Greek Religion; Marija Gimbutas; Theology; History of religion; Religionshistoria; Religionsvetenskap; Study of Religions; George Dumézil; Wilhelm Schmidt; Aryan; Indo-European; History of Religion; Mythology; Myth; Historiography; Humanities; Ideology; Philology; Old Norse Myth; Germanic Religion; Vedic Religion; Friedrich Max Müller; Greek Religion; Marija Gimbutas; Theology; Teologi;

    Sammanfattning : By using ancient texts, medieval documents, philological observations, and archaeological artifacts, scholars have reconstructed a prehistorical world and religion. The people who upheld this culture have been named, inter alia, "Indo-Europeans", "Aryans", "Japhetites" and "Wiros". LÄS MER