Sökning: "excess current"

Visar resultat 16 - 20 av 117 avhandlingar innehållade orden excess current.

  1. 16. The Impact of the Skin Effect on Deep Submicron Integrated Circuits

    Författare :Daniel Andersson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Since the first chip was manufactured in a CMOS technology there has been a drive to shrink dimensions of both wires and transistors. The reason is that down-scaling enables designs with more functionality and higher performance. However, with the 0.25um process, interconnects became as important as the gate delay. LÄS MER

  3. 17. Monolithic Integrated Oscillators - Phase Noise Analysis and Inductor Modeling

    Författare :Niklas Troedsson; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; monolithic inductor; Monolithic integrated oscillator; CMOS; Bluetooth; low voltage; voltage controlled oscillator; Elektronik och elektroteknik; Electronics and Electrical technology; inductor modeling; phase noise analysis; quadrature voltage controlled oscillator;

    Sammanfattning : This doctoral dissertation studies voltage controlled oscillators (VCOs) that operate at low supply voltages. Due to smaller transistor sizes and lower supply voltage ratings with every new CMOS technology, voltage headroom is diminishing. LÄS MER

  4. 18. Physical activity, cardiovascular fitness and abdominal adiposity in children and adolescents

    Författare :Francisco B Ortega Porcel; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Physical activity; accelerometry; fitness; aerobic capacity; adiposity; waist circumference; children; adolescents;

    Sammanfattning : Cardiovascular fitness (CVF) and adiposity, especially abdominal adiposity, are well-known factors associated with general health status in childhood and adolescents. Physical activity (PA) may play a crucial role in CVF enhancement and the prevention of abdominal adiposity accumulation. LÄS MER

  5. 19. Fullerene γ-Cyclodextrin Complexes

    Författare :Thomas Andersson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; C60; a-cyclodextrin; aggregates; FAB LSIMS; Buckminsterfullerene; g-cyclodextrin; b-cyclodextrin; ring-currents; fullerene; host-guest; C70;

    Sammanfattning : The fullerenes, C60 and C70, can form inclusion complexes with .gamma.-cyclodextrin as the host. The complexes are formed by refluxing a water solution of . LÄS MER

  7. 20. Climate-associated human health effects

    Författare :Tzu Tung Chen; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; malaria; Plasmodium vivax; mortality; historical epidemiology; vector-borne diseases; climate change; Nordic countries;

    Sammanfattning : The intensifying impacts of climate change on human health represent a significant and pressing global health threat of the current century. This encompasses both short and long-term effects on human health, as well as ecosystem changes linked to rapid shifts in climate, and the subsequent spread of vector-borne diseases. LÄS MER