Yazar "AGÜ, Mühendislik Fakültesi, Elektrik & Elektronik Mühendisliği Bölümü" için Fakülteler listeleme
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Guided Plasmon Modes of a Graphene-Coated Kerr Slab
Hajian, Hodjat; Rukhlenko, Ivan D.; Leung, Pui Tak; Caglayan, Humeyra; Ozbay, Ekmel (SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA, 2016)We study analytically propagating surface plasmon modes of a Kerr slab sandwiched between two graphene layers. We show that some of the modes that propagate forward at low field intensities start propagating with negative ... -
Improving short-term memory performance of healthy young males using alpha band neurofeedback
Gökşin, Barış; Yılmaz, Bülent; Icoz, Kutay (International Society for Neurofeedback and Research, 2019)To examine whether it was possible to improve short-term memory performance of healthy participants by increasing relative alpha band power (7–11.5 Hz) using neurofeedback, we first converted a commercial EEG device ... -
A joint production and transportation planning problem with heterogeneous vehicles
Toptal, Aysegul; Koc, Utku; Sabuncuoglu, Ihsan (PALGRAVE MACMILLAN LTD, BRUNEL RD BLDG, HOUNDMILLS, BASINGSTOKE RG21 6XS, HANTS, ENGLAND, 2014)We consider a manufacturer's planning problem to schedule order production and transportation to respective destinations. The manufacturer in this setting can use two vehicle types for outbound shipments. The first type ... -
Magnetic micro/nanoparticle flocculation-based signal amplification for biosensing
Mzava, Omary; Tas, Zehra; Icoz, Kutay (DOVE MEDICAL PRESS LTD, PO BOX 300-008, ALBANY, AUCKLAND 0752, NEW ZEALAND, 07.07.2016)We report a time and cost efficient signal amplification method for biosensors employing magnetic particles. In this method, magnetic particles in an applied external magnetic field form magnetic dipoles, interact with ... -
Manipulation of Backscattering From a Dielectric Cylinder of Triangular Cross-Section Using the Interplay of GO-Like Ray Effects and Resonances
Sukharevsky, Ilya O.; Nosich, Alexander I.; Altintas, Ayhan (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA, 2015)A triangular dielectric cylinder (dielectric prism) of the size, in cross-section, comparable to or moderately larger than the wavelength is a scatterer, which blends together two different types of electromagnetic behavior: ... -
Micro- and nanodevices integrated with biomolecular probes
Alapan, Yunus; Icoz, Kutay; Gurkan, Umut A. (PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND, 2015)Understanding how biomolecules, proteins and cells interact with their surroundings and other biological entities has become the fundamental design criterion for most biomedical micro- and nanodevices. Advances in biology, ... -
Motion artifact detection in colonoscopy images
Yılmaz, Bülent; Kaçmaz, Rukiye Nur; Dündar, Mehmet Sait; Doğan, Serkan (The EuroBiotech Journal, 2018)Computer-aided detection is an integral part of medical image evaluation process because examination of each image takes a long time and generally experts’ do not have enough time for the elimination of images with motion ... -
Multiple slow waves and relevant transverse transmission and confinement in chirped photonic crystals
Serebryannikov, Andriy E.; Cakmak, A. Ozgur; Colak, Evrim; Caglayan, Humeyra; Kurt, Hamza; Ozbay, Ekmel (OPTICAL SOC AMER, 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA, 2014)The dispersion properties of rod-type chirped photonic crystals (PhCs) and non-channeled transmission in the direction of the variation of structural parameters from one cell of such a PhC to another are studied. Two types ... -
Nanosecond colloidal quantum dot lasers for sensing
Mutlugun, Evren; Guilhabert, B.; Foucher, Caroline; Haughey, Anne-Marie; Gao, Yuan; Herrnsdorf, Johannes; Sun, Han-Dong; Demir, Hilmi Volkan; Dawson, Martin; Laurand, Nicolas (OPTICAL SOC AMER, 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA, 2014)Low-threshold, gain switched colloidal quantum dot (CQD) distributed-feedback lasers operating in the nanosecond regime are reported and proposed for sensing applications for the first time to the authors' knowledge. The ... -
A new tool for QT interval analysis during sleep in healthy and obstructive sleep apnea subjects: a study on women
Kaya, Kemal Alican; Yilmaz, Bulent (TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY, ATATURK BULVARI NO 221, KAVAKLIDERE, ANKARA, 00000, TURKEY, 2013)By monitoring the Q wave/T wave (QT) interval computed from electrocardiography (ECG) signals during sleep, it is possible to create a link between the ventricular repolarization and sleep stages. In this study, we aimed ... -
Noise-Assisted Multivariate Empirical Mode Decomposition Based Emotion Recognition
Özel, Pınar; Akan, Aydın; Yılmaz, Bülent (ISTANBUL UNIV, FAC ENGINEERING, ELEKTRIK-ELEKTRONIK MUHENDISLIGI BOLUMU, AVCILAR KAMPUSU, ISTANBUL, 34320, TURKEY, 2018)Emotion state detection or emotion recognition cuts across different disciplines because of the many parameters that embrace the brain's complex neural structure, signal processing methods, and pattern recognition algorithms. ... -
Performance analysis of Hamming code for WSN-based smart grid applications
Yigit, Melike; Gungor, Vehbi Cagri; Boluk, Pinar (TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY, ATATURK BULVARI NO 221, KAVAKLIDERE, ANKARA, 00000, TURKEY, 2018)Many methods have been employed to detect, compare, and correct errors to increase communication reliability and efficiency in wireless sensor networks (WSNs). However, to the best of our knowledge, no existing study has ... -
Photonic-lantern-based coherent LIDAR system
Ozdur, Ibrahim; Toliver, Paul; Woodward, Ted K. (OPTICAL SOC AMER, 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA, 2015)In this work, a photonic-lantern-based coherent LIDAR system is experimentally demonstrated and the voltage signal-to-noise ratio improvement is analyzed. A voltage signal-to-noise ratio (SNRV) improvement of 2.8 is ... -
Prediction of preference and effect of music on preference: a preliminary study on electroencephalography from young women
Yilmaz, Bulent; Gazeloglu, Cengiz; Altindis, Fatih (TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY, ATATURK BULVARI NO 221, KAVAKLIDERE, ANKARA, 00000, TURKEY, 2019)Neuromarketing is the application of the neuroscientific approaches to analyze and understand economically relevant behavior. In this study, the effect of loud and rhythmic music in a sample neuromarketing setup is ... -
Provision of Ancillary Services by a Smart Microgrid: An OPF Approach
Ramos, Jose L. Mart´ınez; Marcolini, Alejandro Marano; Lopez, Francisco P. Garc´ıa; Yravedra, Fernando Almagro; Onen, Ahmet; Yoldas, Yeliz; Khiat, Mounir; Ghomri, Leila; Fragale, Nunziatina (IEEE, 2018)Ancillary services are all services required by the transmission (TSO) or distribution system operator (DSO) to maintain the integrity and stability of the transmission or distribution system as well as the power quality. ... -
Redesign of commercial color filters for color enriched LCD displays
Genç, Sinan; Uran, Can; Mutlugün, Evren (Gdansk University of Technology (GUT),, 2018)Having as much as different colors on displays is the main aim for a high color gamut LCD. Using conventional backlight systems, a blue LED with a YAG phosphor layer implemented onto it, a high portion of CIE 1931 color ... -
RF injection locked 18 GHz regeneratively mode-locked semiconductor laser
Oran, Abdullah; Ozharar, Sarper; Can, Gokhan; Olcer, Ibrahim; Ozdur, Ibrahim (OPTICAL SOC AMER, 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA, 2018)In this manuscript, a semiconductor based fiber ring cavity mode-locked laser regeneratively driven at 18 GHz is presented. The optical spectrum of the laser is centered at 1578 nm. The laser is RF injection locked via an ... -
A robust estimator-based optimal algebraic approach to steam generator feedwater control system
Ablay, Gunyaz (TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY, ATATURK BULVARI NO 221, KAVAKLIDERE, ANKARA, 00000, TURKEY Categories / Classification, 2016)Feedwater control systems are used to maintain the steam generator water level within prescribed narrow limits and to provide constant supply of steam during power demand variations. Current feedwater control systems are ... -
Role of epsilon-near-zero substrates in the optical response of plasmonic antennas
Kim, Jongbum; Dutta, Aveek; Naik, Gururaj V.; Giles, Alexander J.; Bezares, Francisco J.; Ellis, Chase T.; Tischler, Joseph G.; Mahmoud, Ahmed M.; Caglayan, Humeyra; Glembocki, Orest J.; Kildishev, Alexander V.; Caldwell, Joshua D.; Boltasseva, Alexandra; Engheta, Nader (OPTICAL SOC AMER, 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA, 2016)Radiation patterns and the resonance wavelength of a plasmonic antenna are significantly influenced by its local environment, particularly its substrate. Here, we experimentally explore the role of dispersive substrates, ... -
Simultaneous low noise radio frequency tone and narrow linewidth optical comb generation from a regeneratively mode-locked laser
Ozdur, Ibrahim; Ozharar, Sarper; Delfyett, Peter J. (SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS, 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98225 USA, 2014)A regeneratively mode-locked laser with simultaneous low noise radio frequency (RF) tone and optical comb generation is presented. The laser does not need any external RF signal and emits a pulse train at similar to 10 GHz ...