• Multimode beam propagation through atmospheric turbulence 

  Gökçe, Muhsin Caner; Baykal, Yahya; Ata, Yalçın; Gerçekcioğlu, Hamza (2024-02)

  The investigation focuses on studying the propagation characteristics of multimode lasers in the turbulent amosphere. By employing the Huygens-Fresnel integral, we develop analytical formulations for various propagation ...
• Depth dependence of oceanic turbulence optical power spectrum under any temperature and salinity concentration 

  Gerçekcioğlu, Hamza; Baykal, Yahya (2024-04-01)

  The Oceanic Turbulence Optical Power Spectrum (OTOPS) with depth variations is acquired under any temperature and salinity concentration. It is supposed that specific medium is the Atlantic Ocean at high latitude and the ...
• Cost optimization of oil type distribution transformer using multi-objective genetic algorithm 

  Telli, Simay; İskender, İres; Yükselen, Emir (2024-03-31)

  The demand for electrical energy is increasing day by day with the development of technology in the world. Distributing electric energy to all regions that need energy is a principal issue, and this necessitates the use ...
• Correlations of multimode optical incidences in a turbulent biological tissue 

  Baykal, Yahya; Gökçe, Muhsin Caner; Gerçekcioğlu, Hamza; Ata, Yalçın (2023)

  In a turbulent biological tissue, field correlations at the observation plane are found when a multimode optical incidence is used. For different multimode structures, variations of the multimode field correlations are ...
• CASE STUDY ON THERMAL OPTIMIZATION OF OIL IMMERSED TRANSFORMER USED IN SOLAR POWER PLANT BASED ON GENETIC ALGORITHM AND COMPUTATIONAL FLUID DYNAMICS 

  Yükselen, Emir; İskender, İres (2023)

  Transformers are one of the most capital investments in the solar power generation. Their safe and stable operations in the electrical networks are important. The main failure factor of transformers is the high temperature ...
• Antenna Synthesis by Levin’s Method using Reproducing Kernel Functions 

  Şener, Göker (2023-07)

  An antenna synthesis application is presented by solving a highly oscillatory Fourier integral using a stable and accurate Levin’s algorithm. In antenna synthesis, the current distribution is obtained by the inverse Fourier ...
• Using wavelet transform self-similarity for effective multiple description video coding 

  Choupani, Roya; Wong, Stephan; Tolun, Mehmet (IEEE, 2016)

  Video streaming over unreliable networks requires preventive measures to avoid quality deterioration in the presence of packet losses. However, these measures result in redundancy in the transmitted data which is utilized ...
• Yeni Rotalama Algoritmalarının 802.16j AĞI Etkin Çıktı Oranı Artırımına Düşük Araç Hızları Altındaki Etkileri 

  Preveze, Barbaros (2011)

  Çoklu ortam verileri içeren kablosuz gezgin ağlarda, yeni bilişsel yöntemler ve rotalama algoritmaları kullanılarak, sistemdeki rota ömrü, bağlantı kesinti miktarı, ortalama sekme sayısı ve paket kaybı gibi performans ...
• Underwater turbulence effect on optical imaging 

  Ata, Yalçın; Gökçe, Muhsin Caner; Baykal, Yahya (2022-05-01)

  Modulation transfer function (MTF) of oceanic turbulence plays an essential role in the design and quality of underwater image sensing systems capturing optical signals. MTF gives clues about the characteristics of turbulence ...
• Ultra Geniş Bant Uygulamaları İçin Tasarlanmış Bir Düzlemsel Eliptik Tek Kutuplu Anten 

  Şener, Göker (2022)

  Bu makalede 1-10 GHz ultra geniş bantta ışıma yapabilen bir düzlemsel eliptik tek kutuplu anten tasarlanmıştır. Yapısal olarak düzlemsel tek kutuplu antenler mikro şerit antenlerin kalınlığının arttırılarak toprak düzleminin ...
• Scintillation of Laser Beams in Weak Atmospheric Turbulence for Aerial Vehicle in the Use of LIDAR 

  Gercekcioglu, Hamza; Baykal, Yahya Kemal (2022)

  Formulation of on-axis scintillation of laser beams is found in weak atmospheric turbulence for aerial vehicle in the use of light detection and ranging (LIDAR) systems by employing the Rytov method. The formulation derived ...
• SDN-Driven Internet of Health Things: A Novel Adaptive Switching Technique for Hospital Healthcare Monitoring System 

  Preveze, Barbaros; Alkhayyat, Ahmed; Abedi, Firas; Jawad, Aqeel Mahmood; Abosinnee, Ali S. (2022)

  In the last decent, the number of Internet of Things (IoT) health-based paradigm reached to a huge number of users, services, and applications across different disciplines. Thus, hundreds of wireless devices seem to be ...
• Underwater turbulence, its effects on optical wireless communication and imaging: A review 

  Baykal, Yahya; Ata, Yalçın; Gökçe, Muhsin C. (2022-12)

  Theory of optical turbulence in underwater medium and the effects of underwater turbulence on various applications done in underwater or under ocean are reviewed. A detailed survey of underwater turbulence studies in ...
• Silicon-based core-shell nanoparticle's nanobiomedical characterisation 

  Sana, Farzin Asghari; Farhadnia, Farshad; Salmanogli, Ahmad (2019)

  Using functionalised nanoparticles in nanobiomedical applications cause to raise questions about unintentional effect of such powerful agents on the human body. In other words, the study of nanoparticle toxicity can be ...
• Unbalanced Operation in Transformers Used in PV Plants 

  Yükselen, Emir; Iskender, Ires (2022-12)

  Renewable energy has become the most preferred energy sources today due to its environmental and economic advantages. One of the renewable energies is solar energy, in which Photovoltaic (PV) cells are used to convert solar ...
• Real-Time Encryption/Decryption Algorithm with A Fractional Chaotic System of Various Data: Image, Speech, and Text 

  Ataş, Muhammet Taha; Güler, Hasan (2022-08)

  Nowadays, a fractional-order chaotic system is commonly used in digital cryptosystem applications due to its precision to initial conditions and their unpredictability. This paper proposed an encryption-decryption of image, ...
• Pi Control Of A Novel Power Converter By Using Heuristic Optimization 

  Tülay, Gencer; Karakaya, Mehmet; İskender, İres (2021-12)

  In this study, obtaining the PI control coefficients of a power converter using the heuristic optimization method was investigated. A new converter has been designed to increase the lifetime of the energy storage unit of ...
• Performance of a free-space optical communication system employing receive diversity techniques in anisotropic atmospheric non-Kolmogorov turbulence 

  Ata, Yalçın; Baykal, Yahya Kemal; Gökçe, Muhsin Caner (2022-08)

  In this paper, bit error rate (BER) performance of a free-space optical communication (FSOC) system operating in anisotropic non-Kolmogorov weak turbulence is investigated together with the spatial diversity techniques. ...
• Performance evaluation of aeronautical uplink/downlink free-space optical communication system with adaptive optics over gamma-gamma turbulence channel 

  Gökçe, Muhsin Caner; Ata, Yalçın; Baykal, Yahya Kemal (2022-10)

  In this study, we analyze the effect of adaptive optics corrections on the performance of an aeronautical free-space optical (FSO) system with bidirectional slant path uplink and downlink communication channels. The ...
• Navigation Under GNSS Denied Environments: Zero Velocity and Zero Turning Update 

  Çifdalöz, Oğuzhan (2022-08)

  The objective of this paper is to present a method which bounds the error of an inertial navigation system (INS) when Global Navigation Satellite System (GNSS) is not available. Inertial navigation systems utilize gyroscopes ...

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