Bekir Sami Tezekiçi

ORCID: 0000-0003-0941-1829
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Research Areas
  • Neural Networks and Applications
  • Microwave Engineering and Waveguides
  • Advanced Antenna and Metasurface Technologies
  • Advanced Photonic Communication Systems
  • Antenna Design and Analysis
  • Telecommunications and Broadcasting Technologies
  • Cooperative Communication and Network Coding
  • Full-Duplex Wireless Communications
  • Advanced Optical Network Technologies
  • Power Transformer Diagnostics and Insulation
  • Hydraulic and Pneumatic Systems
  • Advanced MIMO Systems Optimization
  • Tunneling and Rock Mechanics
  • Wireless Communication Security Techniques
  • Innovations in Concrete and Construction Materials
  • Electromagnetic Compatibility and Noise Suppression
  • Fuzzy Logic and Control Systems
  • Nanofluid Flow and Heat Transfer
  • Image Processing and 3D Reconstruction
  • Optical Network Technologies
  • Innovative concrete reinforcement materials
  • Material Properties and Applications
  • Rock Mechanics and Modeling
  • Advanced Measurement and Detection Methods
  • Heat Transfer Mechanisms

Niğde Ömer Halisdemir Üniversitesi
2005-2025

In this study, an artificial neural network model has been created in order to estimate the specific heat of Cu-Al2O3/water hybrid nanofluid based on temperature (T) and volume concentration (φ). Specific values prepared five-volume were measured experimentally 20°C 65°C range. The dataset was reserved into three primary parts, with inclusion 901 (70%) for training, 257 (20%) test 129 (10%) validation. As a result comparison experimental values, it is concluded that predicts R-value 0.99994...

10.1002/er.5417 article EN International Journal of Energy Research 2020-05-02

This paper concerns the prediction of energy consumption during raw mill preparation process, which is one steps cement production stage in a factory. kind not only reduces costs but also helps to reduce carbon emissions by means savings. An Artificial Neural Network (ANN) model has been proposed for this aim. The ANN architecture based on multilayer perceptron with Levenberg-Marquardt backpropagation. uses eight factors, contribute consumption, as features input layer. It 20 hidden layers...

10.2139/ssrn.5084486 preprint EN 2025-01-01

A compact, low-loss and narrowband dual-mode microstrip filter is proposed using degenerate modes of a patch resonator loaded with two narrow slots. The structure fed by inset lines connected directly to the centre adjacent edges notches. verified both simulation measurement.

10.1049/el:20045840 article EN Electronics Letters 2004-09-30

In this work, joint relay and antenna selection (JRAS) problem in Full-Duplex (FD) Amplify-and-Forward (AF) relaying network is examined. A dual-hop system with one source, destination N FD AF relays considered. Each equipped <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">r</sub> antennas for receiving xmlns:xlink="http://www.w3.org/1999/xlink">t</sub> transmitting. system, strategy involves choosing the best single receive/transmit at...

10.1109/siu.2015.7129911 article EN 2015-05-01

Medeniyetimizin teknolojideki ve bilhassa bilgi teknolojilerindeki ilerlemesi yakın zamanda ciddi bir seviyeye ulaşmıştır. Bilgi teknolojilerinin en mühim evresini telekomünikasyon alanında atılan adımlar oluşturmaktadır. Telekomünikasyon alt yapısının hayatımıza girişi önceleri telefon şebekeleri amaçlı tasarlanmış olsa da internetin keşfi bilim sağlanan gelişmeler ile altyapıları çeşitlenmiş gelişmiştir. [1] Her araştırma gibi bilimsel olarak başlamış şu an tüm dünyada haberleşmeyi...

10.28948/ngumuh.1444202 article TR cc-by-nc Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi 2024-07-18

In literature improvements in neural learning are reported on, which have been achieved through input data manipulation, based on entirely experimental studies. Theoretical background is not supplied for these studies and networks employed as a "black box" model. Within this work, problem highlighted the impact of modified training sets evaluated order to establish theoretical phenomenon. For end, number binary show how does process depend distribution within sets.

10.1109/melcon.2000.879996 article EN 2005-08-29

Fresh concrete is usually considered as a non-Newtonian fluid since it mixture of aggregate, cement and water. The flow behaviour fresh plays crucial role in the quality high performance concretes. Therefore, knowing rheological characteristics has been an absolute must, to be able control that type concrete. But, determining experimentally not easy task. In this study, considering mixtures materials compose concrete, such slump, yield stress viscosity values were determined theoretically at...

10.1504/ijris.2010.036879 article EN International Journal of Reasoning-based Intelligent Systems 2010-01-01

A W-shaped microshield coupled parallel coplanar waveguide (CP CPW), which is a new type of CP CPW, proposed. Closed-form expressions are presented for calculating the quasistatic parameters this structure by using conformal mapping techniques. The effect conductor backing on coupling between CPWs also discussed. Comparisons made present numerical results and available in microwave literature CPW V-shaped lines (CWVMCLs) with flat backing. In addition, coefficient shown to be significantly...

10.1002/mmce.10035 article EN International Journal of RF and Microwave Computer-Aided Engineering 2002-06-19

The main purpose of this study is to achieve the production and characterization phase change material microcapsules, which can respond quickly thermal changes that be used cool computers. properties prepared microcapsules were analyzed by differential scanning calorimetry (DSC). Based on analyses it concluded microencapsulated PCM prevent computers from overheating acting as a buffer will melt when device warmed up. utilization developed in electronic devices enables reduction cooling load device.

10.2139/ssrn.4664588 article EN SSRN Electronic Journal 2023-01-01

Bu makalede Telekomünikasyon sistemlerinden uzak mesafe haberleşme transmisyon sistemlerinin teknolojik gelişimi ve mevcut durumu incelenmiştir. Aynı zaman da hızla gelişim gösteren sektöründe iletişimin donanım alt yapısını oluşturan telekomünikasyon ihtiyaç duyulan band genişliğini sağlayabilmek adına yapısında ara iletişim sistemleri kapasiteleri araştırılmıştır. JDSU MTS 5800 ölçü aleti kullanarak aktif iletim üzerinden ölçümler alınarak optik veri taşıma mesafeleri için deneysel...

10.28948/ngumuh.516830 article TR cc-by-nc Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi 2019-01-23

Bu makalede iletişimi sağlayan telekomünikasyon sistemleri unsurlarından transmisyon sistemlerinin iletilmek istenilen bilgiye ait trafiğin taşıyabilme kapasiteleri ve bu taşınılabilinen kapasitelerde, kapasitelerine göre taşınan bilginin iletilebileceği en uzak iletim mesafeleri araştırılarak elde edilmiş ara iletişim yönleri ile mukayese edilmiştir. 1970’li yıllardan itibaren geliştirilen sistemlerinde ilk zamanlarda PCM (Pulse Code Modilation) analog sayısal 30 kanal sinyal çevirici...

10.28948/ngumuh.516820 article TR cc-by-nc Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi 2019-01-23

Abstract A rectangular microstrip slotted patch, which provides the bandgap with different manner of a PBG, is successfully demonstrated wideband tuning capability. Both experimental and simulated results confirm that stopband characteristics can easily be controlled by slot dimensions, especially length position. Moreover, proposed structure simple compact for MMIC applications. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 35: 125–128, 2002; Published online in InterScience...

10.1002/mop.10535 article EN Microwave and Optical Technology Letters 2002-09-19
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