Electrical and Electronic Engineering / Elektrik-Elektronik Mühendisliği: Recent submissions

  • Analysis of functional brain connections for positive-negative emotions using phase locking value 
    Dasdemir, Yasar; Yildirim, Esen; Yildirim, Serdar (COGNITIVE NEURODYNAMICS / SPRINGER, 2017-12)
    In this study, we investigate the brain networks during positive and negative emotions for different types of stimulus (audio only, video only and audio + video) in , and bands in terms of phase locking value, a nonlinear ...
  • A robust polynomial regression-based voice activity detector for speaker verification 
    Disken, Gokay; Tufekci, Zekeriya; Cevik, Ulus (EURASIP JOURNAL ON AUDIO SPEECH AND MUSIC PROCESSING / SPRINGER INTERNATIONAL PUBLISHING AG, 2017-10)
    Robustness against background noise is a major research area for speech-related applications such as speech recognition and speaker recognition. One of the many solutions for this problem is to detect speech-dominant regions ...
  • LWIR all-atomic layer deposition ZnO bilayer microbolometer for thermal imaging 
    Poyraz, Muhammet; Gorgulu, Kazim; Sisman, Zulkarneyn; Tanrikulu, Mahmud Yusuf; Okyay, Ali Kemal (OPTICAL ENGINEERING / SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS, 2017-03)
    We propose an all-ZnO bilayer microbolometer, operating in the long-wave infrared regime that can be implemented by consecutive atomic layer deposition growth steps. Bilayer design of the bolometer provides very high ...
  • Digitally alloyed ZnO and TiO2 thin film thermistors by atomic layer deposition for uncooled microbolometer applications 
    Tilkioglu, Bilge T.; Bolat, Sami; Tanrikulu, Mahmud Yusuf; Okyay, Ali Kemal (JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A / A V S AMER INST PHYSICS, 2017-03)
    The authors demonstrate the digital alloying of ZnO and TiO2 via atomic layer deposition method to be utilized as the active material of uncooled microbolometers. Depositions are carried out at 200 degrees C. Crystallinity ...
  • Speaker Model Clustering to Construct Background Models for Speaker Verification 
    Disken, Gokay; Tufekci, Zekeriya; Cevik, Ulus (ARCHIVES OF ACOUSTICS / POLSKA AKAD NAUK, POLISH ACAD SCIENCES, INST FUNDAMENTAL TECH RES PAS, 2017)
    Conventional speaker recognition systems use the Universal Background Model (UBM) as an imposter for all speakers. In this paper, speaker models are clustered to obtain better imposter model representations for speaker ...
  • Atomic layer deposition synthesized TiOx thin films and their application as microbolometer active materials 
    Tanrikulu, Mahmud Yusuf; Rasouli, Hamid Reza; Ghaffari, Mohammad; Topalli, Kagan; Okyay, Ali Kemal (JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A / A V S AMER INST PHYSICS, 2016-05)
    This paper demonstrates the possible usage of TiOx thin films synthesized by atomic layer deposition as a microbolometer active material. Thin film electrical resistance is investigated as a function of thermal annealing. ...
  • Dağıtım Sistemleri için Çok Fonksiyonlu Statik Senkron Kompanzatör 
    Saribulut, Lutfu; Teke, Ahmet; Latran, Mohammad Barghi (Gazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi = JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY / Gazi Üniversitesi = GAZI UNIVERSITY, 2016)
    Güç Kalitesi problemleri, elektronik cihazların ve hassas yüklerin zarar görmesine ve verimsiz çalışmalarına neden olmakta, önemli ölçüde ekonomik kayıplara yol açmaktadır. Bu problemlerin giderilmesinde, sistem dinamiklerindeki ...
  • Theoretical analysis of doping management and its effects on power scaling 
    Tandirovic Gursel, Amira; Elahi, Parviz; Ilday, Fatih Omer; Ozyazici, Mustafa Sadettin (TURKISH JOURNAL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCES / TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY, 2016)
    Thermal load and nonlinear effects are two contrary phenomena that make up important drawbacks in rapid progress of high-power fiber lasers. To minimize the thermal load, which limits the average power, doping concentration ...
  • An all-ZnO microbolometer for infrared imaging 
    Kesim, Yunus Emre; Battal, Enes; Tanrikulu, M. Yusuf; Okyay, Ali K. (INFRARED PHYSICS & TECHNOLOGY / ELSEVIER SCIENCE BV, 2014-11)
    Microbolometers are extensively used for uncooled infrared imaging applications. These imaging units generally employ vanadium oxide or amorphous silicon as the active layer and silicon nitride as the absorber layer. ...

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