1 Division of Mechanics, Faculty of Civil Engineering, Istanbul Technical University, Maslak, 34469 Istanbul, Turkey 2 Department of Plasma Theory, Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv 03680, Ukraine 3 Department of Mathematics and Statistics, Dalhousie University, Halifax NS, Canada B3H 4R2 4 Research Laboratory for Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA 5 Department of Mechanical Engineering, Faculty of Engineering, National University of Singapore, Singapore 117576 6 MITRE Corporation, 3101 Virginia Ave, Silver Spring, MD 20910, USA 7 Department of Electrical and Electronics Engineering, Faculty of Engineering, Trakya University, 22030 Edirne, Turkey