Browsing by Author "Yılmaz, Melek"
Now showing items 1-5 of 5
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Atomic collisions and free lepton pair production
Güçlü, Mehmet Cem; Yılmaz, Melek (2005)In this work we have calculated the total cross sections of electron-positron pair production for the collisions of fully stripped gold ions for various energies. We have also compared our calculation with other methods. -
Cosmic ray intensity variation during a CME
Kandemir, Gulcın; Geçkinli, Melih; Fırat, Coşkun; Yılmaz, Melek; Özuğur, B (Pergamon-Elsevier Science Ltd, 2002)The June 6 2000 coronal mass ejection was an exceptional full halo which made it possible to measure cosmic ray (CR) decrease with a simple experimental set-up. Variation in the local secondary cosmic ray density has been ... -
Coulomb corrections in the lepton-pair production in ultrarelativistic nuclear collisions
Güçlu, Mehmet C.; Kovankaya, G.; Yılmaz, Melek (Amer Physical Soc., 2005)We solve the perturbative electron-positron pair production exactly by calculating the second-order Feynman diagrams. We compare our result with Born methods that include Coulomb corrections. We find that a small-momentum ... -
Design of low-pass ladder networks with mixed lumped and distributed elements by means of artificial neural networks
Şengül, Metin Y.; Özmen, Atilla; Yılmaz, Melek (AVES YAYINCILIK, 2003)In this paper, calculation of parameters of low-pass ladder networks with mixed lumped and distributed elements by means of artificial neural networks is given. The results of ANN are compared with the values that are ... -
On the inverse point-source problem of the poisson equation
Yılmaz, Melek; Şengül, Metin Y.; Geçkinli, Melih (Istanbul University, 2005)In this work a basic inverse heat conduction problem of a simple 2-D model with steady state heat source is taken into view. The physical problem is for a square region with uniform thermophysical properties and a point ...