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Toplam kayıt 56, listelenen: 31-40
A new target radar cross section based passive radar surveillance receiver positioning algorithm on real terrain maps
(Spolecnost Pro Radioelektronicke Inzenyrstvi, 2018)
Placing surveillance receivers on passive radar systems is a complex task because of the dependence on third party vendors. This paper presents an efficient and robust algorithm for positioning passive radar surveillance ...
Efficiency improvement for a DC-DC quadratic power boost converter by applying a switch turn-off lossless snubber structure based on zero voltage switching
(Kaunas Univ Technology, 2018)
So as to keep the converter in small size, high switching frequencies are normally used. As a result, in higher frequencies, switching losses seriously affect the efficiency. Current and voltage stresses on power switch ...
Widely unable dual-wavelength operation of Tm:YLF, Tm:LuAG, and Tm:YAG lasers using off-surface optic axis birefringent filters
(Optical Soc Amer, 2018)
In this work, we have demonstrated dual-wavelength continuous-wave laser operation in diode-end-pumped Tm:YLF, Tm:LuAG, and Tm:YAG lasers. A 3-mm-thick quartz birefringent filter with an optical axis 45 degrees to the ...
Thermoelectric transport behaviours of n-type Mg-2 (Si,Sn,Ge) quaternary solid solutions
(Keai Publishing Ltd, 2019)
Mg2X (X=Si, Sn, and Ge) based systems have attracted widespread attention owing to their various benefits in thermoelectric applications. in particular, to date, ternary Mg2X based solid solutions have become one of the ...
Kararlı durumda seri kapasitörlerin iletim şebekesine etkilerinin incelenmesi
(2019)
Artan nüfus ve gelişen sanayi ile birlikte elektrik enerjisi ihtiyacı günden güne artmaktadır. Bu talebin karşılanması için yeni üretim tesisleri birincil enerji kaynaklarına yakın yerlerde kurulmakta ve iletim şebekesi ...
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 ...
QPSK-dual carrier modulation for ultra-wideband communication in body area network channels
(2019)
Dual carrier modulation (DCM) using orthogonal frequency-division multiplexing (OFDM) improves the performance in multipath fading channels. In the literature DCM is proposed with 16-quadrature amplitude modulation (16QAM) ...
Efects of Covid‑19 outbreak on environment and renewable energy sector
(Springer, 2020)
Many articles have been written in the medical feld related to the Covid-19 outbreak that has surrounded the World and killed many people. However, its environmental and energy impacts have not been sufciently studied. ...
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 ...
Effect of air pressure on nanofiber production in solution blowing method
(Gazi Univ, Fac Engineering Architecture, 2020)
In this study, effect of air pressure on nanofiber diameter and morphology was studied for solution blowing technique. A computational fluid dynamics (CFD) analysis was realized via ANSYS (R) Fluent software, and the results ...