Rektörlüğe Bağlı BirimlerOther Unitshttps://hdl.handle.net/20.500.12513/112024-04-14T14:47:10Z2024-04-14T14:47:10ZEffect of Sampling Rate on Transient Based RF FingerprintingTascioglu, SelcukKose, MemduhTelatar, Ziyahttps://hdl.handle.net/20.500.12513/31122019-11-24T20:58:34Z2017-01-01T00:00:00ZEffect of Sampling Rate on Transient Based RF Fingerprinting
Tascioglu, Selcuk; Kose, Memduh; Telatar, Ziya
In this paper, effect of sampling rate on the performance of transmitter identification system using transient-based RF fingerprints is considered. Two different existing RF fingerprinting techniques have been employed to investigate the performance of a transmitter identification system by using experimental data collected at a high sampling rate. Decimation was carried out to analyze the effect of lower sampling rates. It has been shown that transient-based RF fingerprinting methods can be effectively used for identification of wireless transmitters at low sampling rates.
10th International Conference on Electrical and Electronics Engineering (ELECO) -- NOV 30-DEC 02, 2017 -- Bursa, TURKEY; WOS: 000426978800203
2017-01-01T00:00:00ZStructural, Elastic, Electronic, Magnetic and Vibrational Properties of CuCoMnGa under PressureIyigor, AhmetUgur, Sulehttps://hdl.handle.net/20.500.12513/31112019-11-24T20:58:34Z2014-01-01T00:00:00ZStructural, Elastic, Electronic, Magnetic and Vibrational Properties of CuCoMnGa under Pressure
Iyigor, Ahmet; Ugur, Sule
Simos, TE; Kalogiratou, Z; Monovasilis, T
First principles calculations for the structural, electronic, elastic and phonon properties of the cubic quaternary heusler alloy CuCoMnGa on pressure have been reported by density functional theory (DFT) within generalized gradient approximation (GGA). The calculated values of the elastic constants were used for estimations of the Debye temperatures, the bulk modulus, the shear modulus, the young modulus E, the poisson's ratio sigma and the B/G ratio. The elastic constants satisfy all of the mechanical stability criteria. The electronic structures of the ferromagnetic configuration for CuCoMnGa have a metallic character. The estimated magnetic moment per formula unit is 3.76 mu(B). The phonon dispersion is studied using the supercell approach, and the stable nature at 0.2 GPa pressure is observed.
International Conference of Computational Methods in Sciences and Engineering 2014 (ICCMSE) -- APR 04-07, 2014 -- Athens, GREECE; WOS: 000346015200047
2014-01-01T00:00:00ZCalculations of Structural, Elastic, Electronic, Magnetic and Phonon Properties of FeNiMnAl by the First PrinciplesUgur, SuleIyigor, Ahmethttps://hdl.handle.net/20.500.12513/31092019-11-24T20:58:33Z2014-01-01T00:00:00ZCalculations of Structural, Elastic, Electronic, Magnetic and Phonon Properties of FeNiMnAl by the First Principles
Ugur, Sule; Iyigor, Ahmet
Simos, TE; Kalogiratou, Z; Monovasilis, T
The electronic, elastic and dynamical properties of the quaternary alloy FeNiMnAl have been investigated using a pseudopotential plane wave method within the generalized gradient approximation (GGA). We determined the lattice parameters and the bulk modulus B. In addition, the elastic properties such as elastic constans (C-11, C-12 and C-44), the shear modulus G, the young modulus E, the poisson's ratio sigma and the B/G ratio are also given. The FeNiMnAl Heusler alloy exhibit a ferromagnetic half-metallic behavior with the total magnetic moment of 4.02 mu(B). The phonon dispersion of FeNiMnAl has been performed using the density functional theory and the direct method with 2x2x2 supercell.
International Conference of Computational Methods in Sciences and Engineering 2014 (ICCMSE) -- APR 04-07, 2014 -- Athens, GREECE; WOS: 000346015200045
2014-01-01T00:00:00ZAb-initio study of the structural, electronic, elastic and vibrational properties of HfX (X = Rh, Ru and Tc)Iyigor, A.Ozduran, M.Usnsal, M.Ornek, O.Arikan, N.https://hdl.handle.net/20.500.12513/31072019-11-24T20:58:33Z2017-01-01T00:00:00ZAb-initio study of the structural, electronic, elastic and vibrational properties of HfX (X = Rh, Ru and Tc)
Iyigor, A.; Ozduran, M.; Usnsal, M.; Ornek, O.; Arikan, N.
The structural, elastic, electronic and phonon properties of HfX (X = Rh, Ru and Tc) in the caesium-chloride phase have been investigated using the density functional theory within the generalized gradient approximation. The optimized lattice constant (a(0)), bulk modulus (B) and the elastic constants (C-ij) are evaluated. The results are in a good agreement with the available experimental and theoretical data in the literature. Electronic band structures and densities of states have been derived for these compounds. The present band structure calculations indicate that the phases of caesium-chloride HfX (X = Rh, Ru and Tc) compounds are metals. Phonon dispersion curves and their corresponding total and projected density of states have been obtained using the direct method. The phonon spectra suggest that these compounds are dynamically stable in the caesium-chloride phase.
WOS: 000396759100004
2017-01-01T00:00:00Z