Browsing Makale Koleksiyonu by Title
Now showing items 184-203 of 238
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Radar Absorber Fabric Design Based on Periodic Arrays of Circular Shaped Conductive Patches
(Celal Bayar University, 2022)In this study, the design and electrical tests of radar absorber fabric containing an array of circular shaped conductive patches positioned on a neoprene fabric are presented.In the designs, electrical performance of the ... -
Radiation pattern reconfigurable cubical antenna array for 2.45 GHz wireless communication applications
(Springer, 2022)In this paper a single-fed four-faced multidirectional compact antenna is introduced for 2.45 GHz indoor wireless applications. Firstly, a slotted patch antenna is designed to operate at 2.45 GHz and its equivalent circuit ... -
Rapid Design of 3D Reflectarray Antennas by Inverse Surrogate Modeling and Regularization
(Institute of Electrical and Electronics Engineers Inc., 2023)Reflectarrays (RAs) exhibit important advantages over conventional antenna arrays, especially in terms of realizing pencil-beam patterns without the employment of the feeding networks. Unfortunately, microstrip RA ... -
A real-time cost optimization of two-section oven system with discrete gradient extremum seeking control: An experimental study in iron and steel industry
(Elsevier, 2023)The heavy industry plants are focused on finding ways to minimize energy costs, which is one of the most significant costs of production. In this paper, a case study on a real oven system used in a steel strip production ... -
Recognizing Students and Detecting Student Engagement with Real-Time Image Processing
(MDPI, 2022)With COVID-19, formal education was interrupted in all countries and the importance of distance learning has increased. It is possible to teach any lesson with various communication tools but it is difficult to know how ... -
A reflection-only method for characterizing PEC-backed anisotropic materials using waveguide higher order modes
(Wiley, 2020)This paper presents a new reflection-only set-up for characterizing the properties of an anisotropic PEC-backed materials. Albeit, the reflection-only methods are established long ago, they are not elaborated appropriately ... -
A review and research on fuel cell electric vehicles: Topologies, power electronic converters, energy management methods, technical challenges, marketing and future aspects
(Elsevier, 2021)The implementations of fuel cells (FCs) in the vehicle industry have gained great attention for the last few decades owing to simple utilization, silent operation, high efficiency and modular structure. Technological ... -
A review and research on fuel cell electric vehicles: Topologies, power electronic converters, energy management methods, technical challenges, marketing and future aspects
(Elsevier, 2021)The implementations of fuel cells (FCs) in the vehicle industry have gained great attention for the last few decades owing to simple utilization, silent operation, high efficiency and modular structure. Technological ... -
Review of fuel cells to grid interface: Configurations, technical challenges and trends
(Elsevier, 2019)With the development of clean energy technologies, the integration studies of electrical grids and fuel cells have increased significantly in research and practical implementations because of increasing power demand, ... -
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 ... -
Risk assessment of renewable energy and multi-carrier energy storage integrated distribution systems
(Wiley, 2022)High-power renewable energy sources (RESs) are recognized as a significant trend for the development of power distribution systems in an eco-friendly manner. Due to the aging of distribution system infrastructure, many ... -
A Roadmap for Digitalization of Industrial Processes
(Avrupa Bilim ve Teknoloji Dergisi, 2020)Migrating the industry and society into digital area have gradually been increased in recent years. Digitalization has made our life more efficient and faster. As a result of digitalization, the Fourth Industrial Revolution, ... -
Seismic metamaterials for low-frequency mechanical wave attenuation
(Springer, 2021)In this study, a triangular array of cylindrical holes was shown to function as a local resonator to seismic metamaterials against the vibration generator loading in the geophysics concept. The field test showed that the ... -
Sensitive Metamaterial Sensor for Distinction of Authentic and Inauthentic Fuel Samples
(Springer, 2017)A metamaterial-based sensor has been realized to distinguish authentic and inauthentic fuel samples in the microwave frequency regime. Unlike the many studies in literature on metamaterial-based sensor applications, this ... -
Sensory applications of resonator based metamaterial absorber
(Elsevier GmbH, 2018)Metamaterials are attractive media for scientific society for their potential multi-functional and a wide range of applications due to their unusual electromagnetic properties. In this paper, we present several important ... -
Simulated and experimental studies of a multi-band symmetric metamaterial absorber with polarization independence for radar applications
(Institute of Physics, 2022)We develop a simple new design for a multi-band metamaterial absorber (MTMA) for radar applications. Computer Simulation Technology (CST) Studio Suite 2018 was used for the numerical analysis and absorption study. The ... -
Simulated and experimental verification of the microwave dual-band metamaterial perfect absorber based on square patch with a 45(0) diagonal slot structure
(Taylor and Francis, 2021)In this paper, we designed a dual band metamaterial perfect absorber (MPA) for Ku band applications. The overall ultrathin layer of proposed absorber consists of square patch with 450 diagonal slot structure within a copper ... -
Simulation and lithographic fabrication of a triple band terahertz metamaterial absorber coated on flexible polyethylene terephthalate substrate
(The Optical Society, 2022)A triple band metamaterial absorber in the terahertz range, incorporating a three closed circle ring resonator, was designed and fabricated on flexible polyethylene terephthalate “PET” substrate. The proposed design was ... -
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 ... -
Sinusoidally located concrete metastructures for attenuation of seismic surface vibrations
(Springer, 2022)In this numerical and experimental study, we designed sinusoidal located concrete-based boreholes which are candidate for seismic shielding applications. To attenuate seismic wave transmission in an area, proposed design ...
