ﻏــــﺯﺓ– ﺍﻟﺟـﺎﻣــﻌــﺔ ﺍﻹﺳﻼﻣﻳﺔThe Islamic University – Gaza ﻋـــــﻣـــﺎﺩﺓ ﺍﻟـﺩﺭﺍﺳـﺎﺕ ﺍﻟـﻌـﻠـﻳـﺎDeanery of Graduate Studies ﻛــﻠـﻳـــــﺔ ﺍﻟــﻬــﻧــــﺩ ﺳــــــــــــﺔFaculty of Engineering ﺍﻟﻬﻧﺩﺳـــــــﺔ ﺍﻟﻛــــﻬـﺭﺑـﺎﺋﻲ ـــــ ـﺔElectrical Engineering Comparative Study for Controller Design of Time-delay Systems Wesam H. Sakallah Advisor Dr. Hatem A. Elaydi “This Thesis is Submitted in Partial Fulfillment of the Requirements for the Degree of Master of Science in Electrical Engineering ” ﻡ2009 – ﻫــ1430