(3NhGU GdehGO GdUdHI (B= s properties of solid materials - (3eMeO eMeO GdRjOjIs ((3GdbGgQI (B:s (3GdOGQ GdYQHjI ddfTQ h GdJhRjY ,s, 2008)
(3HHdjhLQGajI (B: (3U (B511 - 513s
Keywords: (3GdPQGJs; (3GdehGO GdYGRdIs; (3GdehGO GdUdHIs