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Toplam kayıt 73, listelenen: 41-50
Analysing the performance, fuel cost and emission parameters of the 50 MW simple and recuperative gas turbine cycles using natural gas and hydrogen as fuel
(Elsevier, 2020)
In the present study, firstly, the power production, thermal and exergy efficiencies were calculated for the simple and recuperative gas turbine cycles at constant power production (50 MW) and turbine outlet temperature ...
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 ...
Quantized control settings based tuning of a heaving wave energy converter in irregular seas
(Taylor and Francis Inc., 2016)
The increasing awareness of environmental issues attracts more attention on environmentally friendly energy sources. This leads to increasing research on effective use of renewable energy sources. Among them, wave energy ...
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 ...
Katı Yakıtlı Roket ALP-01 Tasarımı, Modellemesi ve Simülasyonu
(Avrupa Bilim ve Teknoloji Dergisi, 2019)
Bu çalışmada katı yakıtlı alçak irtifa roketi ALP-01’in CAD tasarımı yapılmıştır. 1500 metre irtifa için roket boyutları; seçilen motor için optimize edilmiştir. Burun konisi geometrisi olarak Parabolik tip tercih edilmiş ...
Efficient AC-DC power factor corrected boost converter design for battery charger in electric vehicles
(Elsevier, 2021)
With the widespread use of electric vehicles (EVs), the design of a highly quality and efficient battery charger has become an important research topic. In this study, an efficient AC-DC power factor corrected (PFC) boost ...
Chiral metamaterial-based sensor applications to determine quality of car lubrication oil
(SAGE Publications, 2021)
Motor oils have to be changed periodically in a period of 10.000-20.000 km according to the motor types. A chiral metamaterial sensor that operates in X band is developed to determine the quality of motor oils, numerically ...
Investigation of cotton fabric composites as a natural radar-absorbing material
(Emerald Group Publishing Ltd., 2020)
Purpose The purpose of this paper is to investigate cotton fabric behavior that is exposed to radar waves between selected operation frequencies as an alternative radar-absorbing material (RAM) response. Cotton fabric ...
Improved Modeling of Microwave Structures Using Performance-Driven Fully-Connected Regression Surrogate
(Institute of Electrical and Electronics Engineers Inc., 2021)
Fast replacement models (or surrogates) have been widely applied in the recent years to accelerate simulation-driven design procedures in microwave engineering. The fundamental reason is a considerable-and often prohibitive-CPU ...
Monopole antenna integrated cavity resonator for microwave imaging
(SPIE, 2021)
We present a system that displays an image of any metal structure in a scene by the use of microwave radiation from a cavity resonator in a 10-GHz frequency band. An 80 mm x 80 mm mushroom-like electromagnetic band gap ...