Yazar "RTEÜ, Mühendislik ve Mimarlık Fakültesi, Elektrik-Elektronik Mühendisliği Bölümü" için Mühendislik Fakültesi listeleme
-
Localization of leakages in underwater natural gas pipelines for multipath propagation
Mahmutoğlu, Yiğit; Türk, Kadir (Ieee, 2018)Underwater natural gas pipelines (UNGPs) are frequently used to transport natural gas, which is an important energy resource. UNGPs can get punctured because of several reasons such as especially corrosion and their ... -
Low-cost multi-mode diode pumped Tm:YLF laser: Multi-color & Q-switching operations
Beyatlı, Ersen (Elsevier, 2019)In this paper, we report a low-cost multi-mode AlGaAs laser diode pumped broadly-tunable solid-state Tm:YLF laser at room-temperature operating in two different regimes: multi-color and Q-switching. A low-cost multimode ... -
Low-cost multimode diode-pumped Tm:YAG and Tm:LuAG lasers
Beyatli, Ersen (2019)We report a continuous-wave operation of Tm:YAG and Tm:LuAG lasers pumped with a low-cost, multimode AlGaAs laser diode. First, the lifetime and the absorbance behavior of 5 mm, 6% Tm3+ -doped YAG and LuAG crystals were ... -
Magnetic force performance of hybrid multisurface HTS maglev system with auxiliary onboard PMs
Öztürk, Ufuk Kemal; Abdioğlu, Murat; Mollahasanoğlu, Hakkı (IEEE, 2023)The vertical levitation force, guidance force, and magnetic stiffness values, and thus the loading capacity and movement stability of high-temperature superconducting (HTS) Maglev systems, are aimed to be increased in this ... -
Measurement and mapping of the GSM-based electromagnetic pollution in the Black Sea region of Turkey
Tüysüz, Burak; Mahmutoğlu, Yiğit (Taylor & Francis Inc, 2017)Electromagnetic pollution caused by mobile communication devices, a new form of environmental pollution, has been one of the most concerning problems to date. Consequences of long-term exposure to the electromagnetic ... -
Multi-band plasmonic platform utilizing UT-shaped graphene antenna arrays
Ekşioğlu, Yasa; Çetin, Arif E.; Durmaz, Habibe (Springer, 2018)In this work, we introduce a plasmonic platform based on UT-shaped graphene antenna arrays. the proposed multi-resonant platform shows three different resonances, which can be independently tuned. the physical origin of ... -
Multi-criteria decision analysis for wind power plant location selection based on fuzzy AHP and geographic information systems
Eroğlu, Hasan (Springer, 2021)The objective of this study was to find the most suitable places for wind power plants by using geographic information systems (GIS) and the fuzzy analytic hierarchy process (FAHP). To this purpose, a FAHP-GIS based model ... -
A multiple-band perfect absorber for SEIRA applications
Durmaz, Habibe; Li, Yuyu; Çetin, Arif E. (Elsevier Science Sa, 2018)Recently perfect absorbers (PAs) have received significant interest due to their characteristics of complex electric permittivity (epsilon) and magnetic permeability (mu). By rationally designing these artificial structures, ... -
Nano-scale single layer TiO2-based artificial synaptic device
Gül, Fatih (Springer Heidelberg, 2020)Synaptic nano-electronic devices for brain-inspired computing have become increasingly popular because of their biological neuron-like properties such as massive parallelism with lower power consumption. Metal oxide-based ... -
Nanofibrous composites for sodium-ion batteries
Stojanovska, E.; Buyuknalcaci, F.N.; Çalışır, Mehmet Durmuş; Pampal, E.S.; Kilic, A. (University of Ottawa Press, 2018)[No abstract available] -
A neutrosophic VIKOR method-based decision-making with an improved distance measure and score function: case study of selection for renewable energy alternatives
Eroğlu, Hasan; Şahin, Rıdvan (Springer, 2020)In this study, a new score and distance function which provides more accurate results than the studies in the literature and considers the decision maker's cognition has been proposed. in order to show the effects of the ... -
A new evolutionary preprocessing approach for classification of mental arithmetic based EEG signals
Ergün, Ebru; Aydemir, Önder (Springer, 2020)Brain computer interface systems decode brain activities from electroencephalogram (EEG) signals and translate the user's intentions into commands to control and/or communicate with augmentative or assistive devices without ... -
New modified carrier-based level-shifted PWM control for NPC rectifiers considered for implementation in EV fast chargers
Mollahasanoğlu, Merve; Mollahasanoğlu, Hakkı; Okumuş, H. İbrahim (TUBİTAK Scientific & Technical Research Council Turkey, 2023)In this study, the aim is to evaluate three-phase (3ϕ) AC/DC neutral point-clamped (NPC) power factor-corrected (PFC) multilevel converter performance for electric vehicle (EV) fast chargers. Power factor correction for ... -
A new PWM technique for three-phase three-level neutral point clamped rectifier
Mollahasanoğlu, Merve; Mollahasanoğlu, Hakkı; Okumuş, Halil İbrahim (Springer, 2023)In this study, the aim is to evaluate three-phase (3 phi) three-level (3L) neutral point clamped AC/DC rectifier for high-power applications. The rectifier analysis has been simulated using a new modified carrier-based ... -
A new target radar cross section based passive radar surveillance receiver positioning algorithm on real terrain maps
Tüysüz, Burak (Spolecnost Pro Radioelektronicke Inzenyrstvi, 2018)Placing surveillance receivers on passive radar systems is a complex task because of the dependence on third party vendors. This paper presents an efficient and robust algorithm for positioning passive radar surveillance ... -
A new wide area-based algorithm to determine faulted line in series-compensated grid using k-nearest neighbor (k-NN) classification method
Samuk, Doğan Can; Nuroğlu, Fatih Mehmet (Gazi Üniversitesi Mühendislik Mimarlık Fakültesi, 2021)Nowadays, series capacitors are frequently used to increase the transfer capacity and reduce losses on long transmission lines. They also play an important role in improving the voltage stability of the grid. In addition ... -
Nitrogen-doped TiO2 fibers for visible-light-induced photocatalytic activities
Çalışır, Mehmet Durmuş; Güngör, Melike; Demir, Ali; Kılıç, Ali; Khan, Mohammad Mansoob (Elsevier Sci Ltd, 2020)Nitrogen-doped TiO2 fibers (N-TiO2 Fs) were successfully and efficiently fabricated using titanium diisopropoxide bis(acetylacetonate) and polyvinylpyrrolidone (PVP) as a carrier polymer and nitrogen source via centrifugal ... -
A novel efficient PV - battery powered LED lighting scheme
Şahin, Mustafa Ergin; Sharaf, Adel Mahmoud (Ieee, 2017)This paper presents a novel fully controlled, flexible and self-adjusting LED lighting PV-Battery powered scheme using a pulse-width modulation (PWM) switching. This scheme is controlled a dual-loop error driven, time ... -
OFDM performance of ultra wideband in wireless body area network channel
Karan, Yasin; Şaylı, Osman; Kahveci, Salim (Polish Acad Sciences Inst Physics, 2017)Data transfer for health monitoring can be highly critical because of life dependency transmitted data. IEEE 802.15.6 is a standard for wireless body area network published in 2012 to satisfy the reliability which is ... -
Olfaction recognition by EEG analysis using wavelet transform features
Yavuz, Ebru; Aydemir, Önder (Ieee, 2016)The responses of the brain into different information coming from sense organs could be analyzed by various kinds of measuring techniques. Among the existing techniques, Electroencephalography (EEG) is widely used because ...