Affiliation: | Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, Topi, Swabi, NWFP, 23640, Pakistan;Physical Technical Institute of Academy of Sciences, Dushanbe 734025, Tajikistan; Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, Topi, Swabi, NWFP, 23640, Pakistan;Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, Topi, Swabi, NWFP, 23640, Pakistan;Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, Topi, Swabi, NWFP, 23640, Pakistan;St.Cloud State University, MN 56301-4498, USA;Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, Topi, Swabi, NWFP, 23640, Pakistan;Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, Topi, Swabi, NWFP, 23640, Pakistan |