Search for dissertations about: "threshold voltage"

Showing result 11 - 15 of 57 swedish dissertations containing the words threshold voltage.

  2. 11. Surface Charge Dynamics on Polymeric Insulating Materials for High Voltage Applications

    Author : Shahid Alam; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HVDC insulation.; gas neutralization; decay rate; Surface charging; electrical conductivity; surface potential; charge transport; ambient pressure;

    Abstract : To meet increasing demands in electric energy, it is essential to enhance production of electricity from renewable energy sources (solar, wind and hydro). Such generation sites, however, are usually separated from consumption sites by long distances. READ MORE

  4. 12. Design Space Exploration of Digital Circuits for Ultra-low Energy Dissipation

    Author : Syed Muhammad Yasser Sherazi; Institutionen för elektro- och informationsteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CMOS; ultra low-voltage; ultra low-energy; subthreshold sub-VT ; body biasing; pipelining; unfolding; half-band digital filter.;

    Abstract : The ever expanding market of ultra portable electronic products is compelling the designer to invest major efforts in the development of small and low energy electronic devices. The driving force and benefactors of such devices are (but not limited to) e-health system, sensor network applications, security systems, environmental applications, and home automation systems. READ MORE

  5. 13. Stimulus evoked transient dynamics in the primary visual cortex in vivo : voltage sensitive dye and extracellular recordings

    Author : David Eriksson; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : In this study we investigated how the primary visual cortex responds to a change in the visual scene. In analogy to dynamical systems theory such temporal step input gives information about the rules governing the system. READ MORE

  6. 14. Role of potassium channels in regulating neuronal activity

    Author : Göran Klement; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Potassium channels; threshold dynamics; trafficking; hERG; SMOCs; excitability;

    Abstract : The firing behaviour of excitable cells is fundamental for the information processing in multicellular organisms, varying from single spikes to different forms of repetitive firing. Of the many regulators, voltage gated potassium channels play a major role. In this thesis some aspects of the potassium channel regulation of firing are explored. READ MORE

  7. 15. K+ channels in the inner ear : electrophysiological and molecular studies

    Author : Guihua Liang; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Cochlea; gene expression; hair cell; immunohistochemistry; KCNQ; lead; M current; mercury; patch clamp; RT-PCR; voltage-gated potassium channels;

    Abstract : Potassium channels are involved in several fundamental cellular processes. Heavy metals, such as mercury and lead, are widespread toxic pollutants and have been shown to act on various ion channels in the central nervous system. READ MORE