Başlık için Mühendislik Fakültesi listeleme
Toplam kayıt 847, listelenen: 394-413
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Graphene terahertz plasmons: A combined transmission spectroscopy and raman microscopy study
(Amer Chemical Soc, 2017)Graphene provides a promising materials platform for fundamental studies and device applications in plasmonics. Here we investigate the excitation of THz plasmon polaritons in large-area graphene samples on standard oxidized ... -
Graphene-metallic nanocomposites as modifiers in electrochemical glucose biosensor transducers
(Iop Publishing Ltd, 2016)Graphene sheets and three different graphene-metallic nanocomposites including graphene-copper (graphene-Cu), graphene-nickel (graphene-Ni) and graphene-platinum (graphene-Pt) were prepared and characterized in the first ... -
Green hydrogen and fuel cell systems
(Wiley-Blackwell, 2013)This special issue consists of original, peer-reviewed articles, most of which were presented at the Sixth International Green Energy Conference (IGEC-6), held in Eskisehir, Turkey, on 5–9 June 2011. -
Green hydrogen energy system: A policy on reducing petroleum-based global unrest
(Inderscience Publishers, 2016)This paper investigates the role of green hydrogen energy system in reducing petroleum-based global unrest. For this purpose, in terms of the policy parameters, the followings are discussed: 1) the main factors accelerating ... -
Growth and characterization of Ag/n-ZnO/p-Si/Al heterojunction diode by sol-gel spin technique
(Elsevier Science Sa, 2013)Polycrystalline ZnO thin film was obtained on the p-Si for the heterojunction diode fabrication by sol-gel method. X-ray diffraction study showed that the texture of the film is hexagonal with a strong (002) preferred ... -
Harmonic problems in renewable and sustainable energy systems: A comprehensive review
(Elsevier, 2021)Harmonics are known as distortions in the form of voltage and current, which are driven by the nonlinear loads in the network. Harmonics can be basically asserted as the most common problem in renewable-based power generation ... -
Hava değişim katsayısının kirleticileri uzaklaştırma performansına etkisinin incelenmesi
(Gazi Üniversitesi, 2021)In this study, the effect of air change rate on particle dispersion is investigated experimentally and numerically for different contaminant source positions. An experimental study is carried out on a reduced scale model ... -
Hava hedeflerinin tespiti için yakın gerçek zamanlı çoklu frekans bandı destekli pasif radar sisteminin geliştirilmesi
(Gazi Univ, Fac Engineering Architecture, 2019)Passive radars are radar systems that do not have a transmitter of their own but can identify and follow targets by using the transmitters located in the environment. the interest in passive radar systems, whose history ... -
Hava taşıtlarının denizaltı pasif akustik sistemle uzaktan algılanma mesafelerinin incelenmesi
(TUBİTAK Scientific & Technical Research Council Turkey, 2021)The seas, which covers approximately 2/3 of our world, contain many living species as well as many human-made structures. Today, passive acoustic listening in underwater environment is used in many applications such as ... -
Heat dissipation and fluid flow in micro-channel heat sink equipped with semi-elliptical pin-fin structures: A numerical study
(Elsevier, 2024)Effective thermal management and temperature regulation are crucial for the optimal performance and safety of miniaturized modern electronic, electrical, and electrochemical devices, as they are prone to overheating. ... -
Heat storage and release performance of cascade phase change units for solar heating in a severe cold region of China
(MDPI, 2022)The heat storage and release performance of cascade phase change units are investigated numerically for users in Inner Mongolia's severe cold region. Three schemes of phase change material combinations are thoroughly tested. ... -
Heat transfer studies on solar parabolic trough collector using corrugated tube receiver with conical strip inserts
(MDPI, 2023)The heat transfer characteristics of the working fluid passing through the absorber of a solar parabolic trough collector (SPTC) can be enhanced by the creation of a turbulence effect. Therefore, a novel idea was implemented ... -
Heavy aggregate and different admixtures effect on pavings: pyrite, corundum and water-retaining polymer
(Pontificia Universidad Catolica de Chile, Escuela de Construccion Civil, 2024)Concrete pavings are widely used in the construction industry as flooring for decorative and structural purposes in the gardens, parks, and roads of America, and Europe. In the present study, the effects of pyrite, corundum, ... -
Heuristic algorithm-based estimation of rotor resistance of an induction machine by slot parameters with experimental veri cation
(2017)The estimations of induction machine equivalent circuit parameters are still being widely used in the analysis and in determining the characteristics of the machine. Since the most important part of the machine is the rotor ... -
Hf2Co11 thin films: Rare-earth-free permanent nanomagnets
(Elsevier Science Sa, 2017)Hf2Co11 thin films were deposited on single crystalline Si(100) substrates by using conventional direct current (DC) magnetron sputtering with a Hf2Co11 alloy target. All films were grown at room temperature with 120W ... -
Human-animal recognition in camera trap images
(Ieee, 2018)Camera trap is an image sensor that is widely used in monitoring biodiversity, identifying and tracking species in natural life. in this study, we investigate human-animal distinction in image dataset obtained from camera ... -
A hybrid BCI using singular value decomposition values of the fast walsh-hadamard transform coefficients
(IEEE, 2023)One of the main goals of a brain computer interface (BCI) is to enable a communication channel between the brain and electronic devices by converting neural activity into control commands either for devices or applications. ... -
Hybrid floating solar plant designs: A review
(MDPI, 2021)The world's demand for electricity will double by 2050. Despite its high potential as an eco-friendly technology for generating electricity, solar energy only covers a small percentage of the global demand. One of the ... -
Hybrid machine learning model coupled with school closure for forecasting covıd-19 cases in the most affected countries
(2021)Coronavirus disease (Covid-19) caused millions of confirmed cases and deaths worldwide since first appeared in China. Forecasting methods are essential to take precautions early and control the spread of this rapidly ... -
A hybrid PV-battery/supercapacitor system and a basic active power control proposal in MATLAB/simulink
(Mdpi, 2020)An increase in the integration of renewable energy generation worldwide brings along some challenges to energy systems. Energy systems need to be regulated following grid codes for the grid stability and efficiency of ...
