Sökning: "arman"

Visar resultat 1 - 5 av 14 avhandlingar innehållade ordet arman.

  1. 1. Probing Atomic Scale Structure and Catalytic Properties of Cobalt Oxide Model Catalysts

    Författare :Alif Arman; Synkrotronljusfysik; []
    Nyckelord :catalysis; model systems; Co3O4 111 ; Co3O4 100 ; CoO 111 ; X-ray photoelectron spectroscopy; Scanning tunneling microscopy; Fysicumarkivet A:2017:Arman;

    Sammanfattning : Cobalt oxides are known to be active catalysts for a number of chemical reactions, but very little is known about the atomic scale processesresponsible for the activity. The research presented in this thesis is focused on obtaining an atomic scale understanding of the chemistry of wellcharacterizedcobalt oxide model catalyst surfaces consisting of pristine and defective CoO and Co3O4 thin films with the (111) and (100)terminations supported by Ag(100), Ir(100), and Au(111) single crystal surfaces. LÄS MER

  3. 2. Laser-Based Investigations of Combustion Phenomena in Gas Turbine Related Burners

    Författare :Arman Subash; Förbränningsfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Combustion; Gas turbine; Chemiluminescence; laser-based techniques; LIF; PIV; DLE; TARS; CH4; H2; OH; CH20; Equivalence ratio; flame stabilization; LBO; Flashback; RPL; Fysicumarkivet A:2018:Subash;

    Sammanfattning : Experiments were performed on various combustion devices to investigate the flames employing different optical measurement techniques under atmospheric pressure conditions. Non-intrusive laser-based techniques provided in-situ information concerning different parameters of the combustion process, with a high degree of temporal and spatial resolution. LÄS MER

  4. 3. Modulation of Modular Multilevel Converters for HVDC Transmission

    Författare :Arman Hassanpoor; Hans-Peter Nee; Staffan Norrga; Rainer Marquardt; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HVDC; switching schemes; modulation; high power converters; power grids; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : The outstanding features of modular multilevel converters (MMC) have recently gained much attention in the high-voltage direct-current (HVDC) transmission field. Power quality, converter cost and system performance are three crucial aspects of HVDC MMCs which are directly linked to the converter modulation and switching schemes. LÄS MER

  5. 4. Molecular Profiling of the Population Dynamics : Foundation and Expansion of an Archaic Domesticate

    Författare :Arman Ardalan; Peter Savolainen; Love Dalén; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Dog; wolf; dingo; mtDNA; NRY; SNP; Madagascar; Australia; domestication;

    Sammanfattning : "An ‘exponential growth of science’ throughout modern history has been frequently boasted by numerous narcissistic accounts of ‘modern humanity.’ Nonetheless, ‘modern science’ seems to have overwhelmingly compromised on its original promises by fitting into an ‘industrial scheme. LÄS MER

  7. 5. Fragmentation and power in managerial work in health care. A study of first and second line-managers

    Författare :Rebecka Arman; Göteborgs universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; mangerial work; health care management; shadowing; fragmentation; disciplinary power; legitimacy; accountability; quantification; normalization;

    Sammanfattning : .... LÄS MER