Search for dissertations about: "bipolar distribution"

Showing result 6 - 10 of 24 swedish dissertations containing the words bipolar distribution.

  2. 6. Simulation and Characterization of Silicon Carbide Power Bipolar Junction Transistors

    Author : Benedetto Buono; Mikael Östling; Gunnar Malm; Martin Domeij; Lothar Frey; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; silicon carbide; power device; BJT; diode; simulation; characterization; current gain; on-resistance; breakdown voltage; forward voltage drop; degradation; SRA - ICT; SRA - Informations- och kommunikationsteknik;

    Abstract : The superior characteristics of silicon carbide, compared with silicon, have suggested considering this material for the next generation of power semiconductor devices. Among the different power switches, the bipolar junction transistor (BJT) can provide a very low forward voltage drop, a high current capability and a fast switching speed. READ MORE

  4. 7. Metall organic vapour phase epitaxy for advanced III-V devices

    Author : Nils Nordell; Sture Petersson; Gunnar Landgren; Ferdinand Scholz; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Metalorganic vapour phase epitaxy MOVPE ; III-V compound semiconductors; epitaxial uniformity; p-type doping profiles; epitaxial regrowth; chlorine-MOVPE; buried heterostructure laser; heterostructure bipolar transistor; Electrical Engineering; Elektro- och systemteknik;

    Abstract : Metalorganic vapour phase epitaxy (MOVPE) has proven to be a successful method for growth of structures for advanced optoelectronic semiconductor devices in III-V compounds. This thesis deals with technological and process related aspects of MOVPE from an experimental perspective. READ MORE

  5. 8. Distribution and regulation of neuropeptide Y and its receptors in the human and rat brain : role in affective disorders

    Author : Laura Caberlotto; Karolinska Institutet; Karolinska Institutet; []
    Keywords : neuropeptide Y; neuropeptide Y receptors; human; depression; Flinder Sensitive Line rats; in situ hybridization; receptor autoradiography; immunohistochemistry;

    Abstract : Neuropeptide Y (NPY) is one of the most abundant peptides found within the mammalian brain. Many studies have documented that this 36-amino acid peptide exerts a wide range of central effects. READ MORE

  6. 9. Cytoskeletal Regulation During Embryonic Development in Drosophila melanogaster

    Author : Mojgan Padash; Udo Häckers grupp Utvecklingsbiologi i invertebrater; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Naturvetenskap; Natural science; DRhoGEF2; Actin cytoskeleton; Rho GTPase;

    Abstract : The development of multicellular organisms is associated with extensive rearrangements of cells and tissues. The driving force for these rearrangements is generated by the cell's actin cytoskeleton. During many morphogenetic processes dynamic rearrangement of the actin cytoskeleton is regulated by small GTPases of the Rho-family. READ MORE

  7. 10. The Remaking of American Strategy toward Iran and Iraq : Outline of a Theory of Foreign Policy Change

    Author : Idris Ahmedi; Jan Hallenberg; Ulf Mörkenstam; Jens Bartelson; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Theory; Foreign Policy Change; Grand Strategy; Realism; Constructivism; the United States; Iran; Iraq; Political Science; statsvetenskap;

    Abstract : This study sets out to develop a realist-constructivist theory of foreign policy change. The theory claims that whenever policymakers believe that the distribution of power favors an expansive grand strategy or necessitates retrenchment, they will act accordingly. READ MORE