Die Synchronmaschine mit Speisung & Regelung uber Gleich-stromzwischenkreis-umrichter einschliesslich des Feldschwaechbereiches Diss. THD. D17 1983. Steady-State Analysis of Self-Controlled Synchronous Machine Drive, 11th International Congress for Statics, Computer Science, Social and Demographic Research, Cairo-Egypt, 1986. A Study of Power, Torque, and Speed Variations of Converter-fed Synchronous Machine. Scientific Bulletin of Ain Shams University Faculty of Engineering, No. 19, Vol. 2, Elect. Eng. Cairo-Egypt . Firing scheme of self- controlled synchronous machine drive; Scientific Bulletin, Ain Shams University, Faculty of Engineering, No. 19, Vol. 2, Elec. Eng. PWM Self-Controlled Synchronous Machine Drive with Sinusoidal Current Wave Form using Power. Association for the Advancement of Modelling and Simulation Techniques in Enterprises. Cairo March 1987. Effect of the adopted Model-Order in Power System Representation on the resulting Modes. Association for the Advancement of Modelling and Simulation Techniques in Enterprises. Cairo March 1987. A Simplified Dynamic-Model and Closed-Loop Control of Synchronous Machine-Drive – Part I. 12th International Congress for Statistics, Computer Science, Social and Demographic Research Cairo-Egypt. A Simplified Dynamic-Model and Closed-Loop Control of Synchronous Machine-Drive – Part II. 12th International Congress for Statistics, Computer Science, Social and Demographic Research Cairo-Egypt. Control Scheme of a Permanent Magnet Synchronous Machine Drive:, 2nd Conference on Aeronautical Sciences and Aviation Technology, Technical College Cairo-Egypt . Choppered Dc Motor Drive using MOS and Bipolar Power Transistors. 2nd Conference on Aeronautical Sciences and Aviation Technology, Technical College Cairo-Egypt . Modelling of Brushless Motor Based on the Network and Graph Theory. Engineering Research Bulletin Faculty of Engineering University of Monofia. A Power Simulator for a Photo voltaic Array using a switching Amplifier. Armed Forces scientific Research Journal. Firing scheme of self- controlled synchronous machine drive; Scientific Bulletin, Ain Shams University, Faculty of Engineering, No. 19, Vol. 2, Elec. Eng. Firing Circuits for Phase-controlled Converters , Mansoura Engineering Journal (MEJ) Vol. 13, No. 2, Dec. 1988 E. 13. Power Factor Correction of a Permanent-magnet Synchronous Machine-Drive using a Transistorized Inverter with Bypass Ways; Mansoura Engineering Journal (MEJ) Vol. 13, No. 2, E. 13. Speed Control of a Microprocessor Based DC Drive :Part I: Design of control loops; 3rd Conference on Aeronautical Sciences and Aviation Technology - Military Technical College - Cairo. Speed Control of a Microprocessor Based DC Drive : Part II: Hardware and Software Implementation; 3rd Conference on Aeronautical Sciences and Aviation Technology - Military Technical College - Cairo . Speed Control of an Induction Machine Drive System; 14th. INT. CONF. for STAT. , Comp., & DEMO. RES. , CAIRO 25-30 MARCH 1989., 2ND. Vol. 39-53. Speed Control Of Three-phase Induction Motor Drive"; fourth A.S.A.T. Conference may 1991, Cairo, PP. (EE5-636)-(EE5-645). Micro-Computer Oriented Firing Scheme For A Dc Dual Converter Drive System, Bulletin of Faculty of Eng. & Tech. Uni. Of Helwan, Volume 3, June 1992. Control Scheme For A Micro-Computer Four-Quadrants DC-Machine Drive System, Bulletin of Faculty of Eng. & Tech. Uni. Of Helwan, Volume 4. Speed Control of Drive Systems Without Speed Sensors, Bulletin of Faculty of Eng. & Tech. Uni. Of Helwan, Volume 4. Three-Phase Inverter With Commutation Circuit Connected To The Load Neutral Point. Bulletin of Faculty of Eng. & Tech. Uni. Of Helwan, Volume 1. Micro-Computer Control Of A Low Power Mobile Robot, 18th International Conference for Statistics, Computer Science Scientific & Social Applications. Motion Control Of A Low Power Mobile Robot, 18th International Conference for Statistics, Computer Science Scientific & Social Applications, Apr. 1993. Implementation Of A Field Oriented Induction Motor Drive Using A Single Chip Micro-Controller. 18th International Conference for Statistics, Computer Science Scientific & Social Applications. Design and Implementation Of A Space Vector Modulator using A Single Chip Micro-controller. 18th International Conference for Statistics, Computer Science Scientific & Social Applications. Computer Control Of A PWM Induction Machine Drive System, fifth A.S.A.T. Conference may 1993, Cairo, PP. (EE3-535)-(EE3-549).