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Visar resultat 6 - 10 av 100 avhandlingar som matchar ovanstående sökkriterier.

  1. 6. Operando Gas Imaging in Heterogeneous Catalysis

    Författare :Jianfeng Zhou; Förbränningsfysik; []
    Nyckelord :planar laser-induced fluoresence; degenerate four wave mixing; gas phase; CO oxidation; model catalyst; hetergeneous catalysis; laser-diagnostiska tekniker; gasfasdetektering; modellkatalys; heterogen katalys;

    Sammanfattning : This thesis deals with the development and application of laser-based techniques, for gas phasecharacterization/gas imaging in heterogeneous catalysis. Two techniques are presented: planar laser-induced fluorescence (PLIF) and degenerate four wave mixing (DFWM). LÄS MER

  3. 7. Zhou Chen : the life and paintings of a Ming professional artist

    Författare :Mette Siggstedt; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES;

    Sammanfattning : Zhou Chen played a major role in the development of professional painting in Suzhou during middle Ming. The thesis presents Zhou’s biography, focussing on his relations to his contemporaries and on the conditions of professional artists in general. LÄS MER

  4. 8. Linear Interpolation D/A Converter Applied to Direct Digital RF Modulators

    Författare :Zhou Yijun; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Elektroteknik; Electrical engineering; SOC.; quadrature modulator; interpolation; filter; DSP; CMOS; DAC;

    Sammanfattning : This thesis deals with techniques for the full integration of radio frequency (RF) transmitter with CMOS technology. The theory and implementation of high performance digital-to-analog converters (DACs) for radio frequency (RF) transmitters have been studied. A linear interpolation DAC architecture is proposed. LÄS MER

  5. 9. Novel skeletal stem and progenitor cells and their regulation

    Författare :Baoyi Zhou; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The development of bone and cartilage, which provide the framework of the skeletal system, is complex. In this context stem and progenitor cells play a crucial role by producing differentiated cells. Hormones are important regulators of this process, with growth hormone (GH) acting as the major endocrine regulator of longitudinal bone growth. LÄS MER

  7. 10. Single-cell analysis of mammalian cardiogenesis elucidating an essential role of outflow tract progenitors

    Författare :Chikai Zhou; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The heart is the first organ to form and start to function during mammalian embryogenesis. This complex organ system is constructed by a diverse set of cell types, involving mesodermal precursors and heart progenitors, at the earliest embryonic stages. LÄS MER