Browsing Makale Koleksiyonu by Issue Date
Now showing items 1-20 of 238
-
PID parametrelerinin ayarlama yöntemleri: 2. derece sistem modeline uygulanması ve karşılaştırmalı olarak değerlendirilmesi
(Çukurova Üniversitesi Mühendislik-Mimarlik Fakültesi Dergisi, 2015)PID denetleyiciler, özellikle ayarlanacak parametrelerinin az olması ve yüksek başarımı nedeniyle negatif geri beslemeli kontrol sistemlerinde tercih edilmektedir. Literatürde, PID parametrelerinin ayarlanmasına yönelik ... -
Polarization angle independent metamaterial absorber based on circle-shaped resonators with interference theory
(World Scientific Publishing Co. Pte Ltd, 2015)We theoretically and numerically designed a perfect metamaterial absorber at microwave frequencies. The proposed design has a very simple geometry, wide band properties and provides perfect absorption for all polarization ... -
Perfect metamaterial absorber-based energy harvesting and sensor applications in the industrial, scientific, and medical band
(SPIE-Soc Photo-Optical Instrumentation Engineers, 2015)An electromagnetic (EM) energy harvesting application based on metamaterials is introduced. This application is operating at the the industrial, scientific, and medical band (2.40 GHz), which is especially chosen because ... -
Tunable perfect metamaterial absorber design using the golden ratio and energy harvesting and sensor applications
(Springer, 2015)We present the design, characterization, theoretical and experimental verification of a tunable perfect metamaterial absorber (MA) based electromagnetic (EM) energy harvesting and sensor application. We have used the golden ... -
90° degrees Polarization rotator and antireflector using meanderline chiral metamaterials: Analytical and numerical approach
(Elsevier GmbH, 2015)We demonstrate theoretically and numerically a chiral slab that can exhibit optical activity, circular dichroism, and antireflection in detail. Copolar and crosspolar transmitted and reflected waves depending on permittivity, ... -
Dynamic and tunable chiral metamaterials with wideband constant chirality over a certain frequency band
(Elsevier GmbH, 2015)We present numerically and experimentally a dynamic chiral metamaterial (MTM) that creates strong optical activity and circular dichroism. The proposed tunable structure has a very simple and more efficient configuration ... -
Estimation of PLC channels: An adaptive simplified map approach
(Istanbul University, 2015)An adaptive channel estimation method, to be used in Power Line Communication systems with Orthogonal Frequency Division Multiplexing modulation, is presented in this paper. The proposed Maximum A-Posteriori based estimator ... -
Çelik lif ile güçlendirilmiş betonlarda lif yönünü ve dağılımını belirlemede yeni bir yaklaşım
(Çukurova Üniversitesi Mühendislik-Mimarlik Fakültesi Dergisi, 2016)Beton, basınç dayanımı yüksek, çekme dayanımı düşük, gevrek bir malzemedir. Beton içerisinde lifli malzemelerin kullanılması betonun eğilme dayanımını, çekme dayanımını, darbe dayanımını, yorulma direncini, yangın ve ... -
New generation chiral metamaterials with small and flat chirality over a certain frequency band based on circular split ring resonators for microwave filter applications
(World Scientific Publishing Co. Pte Ltd, 2016)There are many studies in literature on chiral metamaterials (MTMs) to obtain large chiralities with dynamic optical activities. With this regard, this new generation planar chiral MTM study focuses on a small, non-dispersive ... -
Tunable perfect metamaterial absorber and sensor applications
(Springer, 2016)Operation frequencies of traditional metamaterial absorbers are fixed meaning that it is not possible to change that frequency after the fabrication. Therefore, more studies are focused on the design of Tunable metamaterial ... -
U-shaped frequency selective surfaces for single- and dual-band applications together with absorber and sensor configurations
(Institution of Engineering and Technology, 2016)In this study, the frequency selective surface (FSS), absorbance and sensing applications of new unit cells comprised of single, double and quad U-shaped metallic elements are numerically and experimentally investigated. ... -
Multi-band polarization independent cylindrical metamaterial absorber and sensor application
(World Scientific Publishing Co. Pte Ltd, 2016)A multi-band perfect metamaterial absorber (MA) based on a cylindrical waveguide with polarization independency is numerically presented and investigated in detail. The proposed absorber has a very simple configuration, ... -
Electromagnetic energy harvesting and density sensor application based on perfect metamaterial absorber
(World Scientific Publishing Co. Pte Ltd, 2016)The proposed study presents an electromagnetic (EM) energy harvesting and density sensor application based on a perfect metamaterial absorber (MA) in microwave frequency regime. In order to verify the absorption behavior ... -
New generation chiral metamaterials based on omega resonators with small and smooth chirality over a certain frequency band
(World Scientific Publishing Co. Pte Ltd, 2016)In this paper, we have designed, simulated and analyzed a new generation chiral metamaterials (MTMs) with two geometries. There are various types of chiral MTM structures in the literature and almost all of them are indented ... -
Dynamical chiral metamaterial with giant optical activity and constant Chirality over a certain frequency band
(Applied Computational Electromagnetics Society (ACES), 2016)We demonstrate numerically and experimentally a dynamical chiral metamaterial that uniaxially creates giant optical activity and circular dichroism. In addition, the structure gives a high negative refractive index due to ... -
Akaryakıt sektörü için metamalzeme tabanlı sensör tasarımı ve uygulaması
(Kırıkkale Üniversitesi, 2017)Metamalzemelerin sinyal emilimi, anten, sensör, süper lens vb. birçok uygulama alanı bulunmaktadır. Bu çalışmada ise metamalzemelerin sensör alanındaki önemli uygulamalarından birine değinilmiştir. Bu uygulama, akaryakıt ... -
Sinter makinesinin örüntü tanıma tabanlı otomatik hız kontrolü
(Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi, 2017)Sinter tesisleri, yüksek fırın kullanılarak demir çelik üretimi yapılan entegre demir çelik fabrikalarının önemli bir parçasıdır. Sinter tesislerinin ana bölümlerinden biri olan sinter makinesinde toz cevherin sinterleşmesi ... -
Microwave metamaterial absorber for sensing applications
(Elsevier, 2017)A metamaterial absorber (MA) based sensor is designed and analysed for various important applications including pressure, temperature, density, and humidity sensing. Material parameters, as well as equivalent circuit model ... -
Broad-band polarization-independent metamaterial absorber for solar energy harvesting applications
(Elsevier, 2017)A novel broad-band polarization-independent with wide-angle metamaterial absorber(MA) is investigated and demonstrated for solar energy harvesting applications. The proposed MA is composed of two metal layers which have ... -
A review of magnetically controlled shunt reactor for power quality improvement with renewable energy applications
(Elsevier, 2017)Renewable energy sources are widely available on Earth; hence they have attracted much interest in both research and practical applications. In the large scale renewable energy system, power quality into the grid, especially ...
