Now showing items 1-5 of 5

    • Additive neural network for forest fire detection 

      Pan, H.; Badawi, D.; Zhang, X.; Çetin, Ahmet Enis (Springer, 2020)
      In this paper, we introduce a video-based wildfire detection scheme based on a computationally efficient additive deep neural network, which we call AddNet. This AddNet is based on a multiplication-free vector operator, ...
    • A hole accelerator for InGaN/GaN light-emitting diodes 

      Zhang, Z. H.; Liu, W.; Tan, S. T.; Ji, Y.; Wang, L.; Zhu, B.; Zhang, Y.; Lu, S.; Zhang, X.; Hasanov, N.; Sun, X. W.; Demir, Hilmi Volkan (AIP Publishing, 2014)
      The quantum efficiency of InGaN/GaN light-emitting diodes (LEDs) has been significantly limited by the insufficient hole injection, and this is caused by the inefficient p-type doping and the low hole mobility. The low ...
    • InGaN/GaN multiple-quantum-well light-emitting diodes with a grading InN composition suppressing the Auger recombination 

      Zhang Z.-H.; Liu W.; Ju, Z.; Tan S.T.; Ji Y.; Kyaw, Z.; Zhang, X.; Wang, L.; Sun, X. W.; Demir, Hilmi Volkan (AIP Publishing, 2014)
      In conventional InGaN/GaN light-emitting diodes (LEDs), thin InGaN quantum wells are usually adopted to mitigate the quantum confined Stark effect (QCSE), caused due to strong polarization induced electric field, through ...
    • On the mechanisms of InGaN electron cooler in InGaN/GaN light-emitting diodes 

      Zhang, Z. H.; W. L.; Tan, S. T.; Ju, Z.; Ji, Y.; Kyaw, Z.; Zhang, X.; Hasanov, N.; Zhu, B.; Lu, S.; Zhang, Y.; Sun, X. W.; Demir, Hilmi Volkan (Optical Society of America, 2014)
      Electron overflow limits the quantum efficiency of InGaN/GaN light-emitting diodes. InGaN electron cooler (EC) can be inserted before growing InGaN/GaN multiple quantum wells (MQWs) to reduce electron overflow. However, ...
    • Polygenic risk score increases schizophrenia liability through cognition-relevant pathways 

      Toulopoulou, Timothea; Zhang, X.; Cherny, S.; Dickinson, D.; Berman, K. F.; Straub, R. E.; Sham, P.; Weinberger, D. R. (Oxford University Press, 2019)
      Cognitive deficit is thought to represent, at least in part, genetic mechanisms of risk for schizophrenia, with recent evidence from statistical modelling of twin data suggesting direct causality from the former to the ...