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Browsing Makina Mühendisliği by Author "Dönmezer Akgül, Fatma Nazlı."

Browsing Makina Mühendisliği by Author "Dönmezer Akgül, Fatma Nazlı."

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  • Accurate thermal characterization and optimization of high lumen led array fixtures 
    Kundakçıoğlu, Haluk. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    High lumen light emitting diode (LED) arrays have been preferred in di erent applications due to their low energy consumption. To maintain the performance of LEDs, heat generated by the LED chips should be removed e ectively. ...
  • Current crowding effects on the thermal performance of AlGaN 
    Göktepe, Emine. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    In the areas, such as automotive, outdoor, and building lighting in which high brightness is very significant, high lumen AlGaN/ GaN light emitting diodes (LED) are preferred due to their low energy consumption vs high ...
  • Modeling localized heating induced size effects in semiconductor devices 
    Dündar, Canberk. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    Micro and nano scale semiconductor devices could undergo localized self-heating that obscures phonon transport and leads to size e ects and peak device temperatures. Consequently, device performance and lifetime are degraded. ...
  • Modified numerical method for thin film thermal conductivity calculation with micro-raman spectroscopy 
    Meydando, Taher. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    Thin film materials have recently drawn a great attention for their wide range of applications in nano- and micro-scale devices. To overcome thermal issues associated with these devices, thin film materials must be ...
  • Phonon mean free path and thermal conductivity analysis of wide and ultra-wide bandgap materials 
    Albar, Esra İlke. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2020., 2020.)
    As the Knudsen number (de ned as the as the ratio of the molecular mean free path length to length scale of the device) increases, materials' thermal properties are compromised due to disruption of phonon movement. If the ...
  • Understanding the ballistic-diffusive thermal transport trends in crystalline semiconductors with molecular dynamics 
    Kaya, Onurcan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2021., 2021.)
    Due to the growing demand of the market, semiconductor device size decreases and power density increases continuously. In today's semiconductor devices, extremely small architecture and localized heating distrupt energy ...

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