الفهرس 
General IntroductionOnly 14 pages are availabe for public view
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Abstract
The present work deals with the optical and dynamic behaviour of annealed and quenched fibers with the ends of the sample free(Egyptian PET and Japanese Nylon 66) subject to mechanical strain to study some structure and physical properties of these fibers. Six independent techniques were used in this work to study the optical anisotropy in these fibers.