Machinability of Aluminum Pressure Die Castings By Core Drilling. M.Sc. Thesis, Cairo University Effect of Porosity on the Machinability of Aluminum Pressure Die Castings. Second Symposium on Foundry Technology CMRDI, Machining Characteristics of Spheroidal Graphite Cast Iron. Dissertation, Cairo University Effect of Mg-Treatment on the machinability of Spheroidal Graphite Cast Iron. Current Advances in Mechanical Design and Production, Proceedings of the 1st International Conference on Mechanical Design and Production, Cairo University, Dec. 27-29 Evaluation of Nodularity in Ductile Cast Iron. Proceeding of the 1st International Conference on Production Engineering, Design and Control, Alexandria University, Dec. 27-29 Factors Affecting Nodularity and Properties of Spheroidal Graphite Cast Iron. Alsebaka Journal, Nr. 20, The Use of Agricultural Wastes in Solar Heaters. 5th International Conference on Renewable Energy, Miami, California, USA, Dec.13-15 Factors Affecting the Cutting Resistance of Steel. 2nd Cairo University Conference on Mechanical Design and Production, Dec. 27-29 Mechanism of Formation of Flank adhesion during the Machining of Spheroidal Graphite Iron. 2nd Joint International Zagazig University and Leisister Polytechnic Conference on Production Engineering, April 13-15, Optimum Conditions for the Machining of Nodular Iron. Proceeding of the 2nd International Conference on Production Engineering, Design and Control, Alexandria University, Dec. 27-29, The Deformation of a Thin Ring under Equal and Equally Spaced Radial Forces and its Utilization in the Production of Three Lobe Bearings. Proceeding of the 2nd International Conference on Production Engineering, Design and Control, Alexandria University, Dec. 27-29 The Role of Ductility in Metal Cutting. 3rd Cairo University Conference on Mechanical Design and Production, Dec. 28-30 Tool Wear – the main Measure of Machinability. Bulletin of the Faculty of Engineering, Elminia University, vol 5, Part 1 Influence of Drill Wear on Burr Formation. Proceeding of the 3rd International Conference on Production Engineering, Design and Control, Alexandria University, Dec. 12-14 Machining Characteristics of Copper Cast Alloys. Proceeding of the 3rd International Conference on Production Engineering, Design and Control, Alexandria University, Dec. 12-14 Influence of Fluctuating Depth of Cut on Life of Turning Tools. Bulletin of the Faculty of Engineering, Elminia University, vol 5, Part 1 An Investigation ito the Static Characteristics of Hydraulic Control Elements. Proceeding of the 3rd International Conference on Production Engineering, Design and Control, Alexandria University, Dec. 12-14 On the Evaluation of Nodularization in Ductile Cast Iron. 3rd Conference on Metal Casting, Cairo, March 31-April 2 Roughness Characteristics of Machined Surfaces. IASTED – International Symposium Reliability and Quality Control, Paris, France June 24-26, Improving Cutting Performance by Thread Tapping. 2nd International Ain-Shams University Conference on Production Engineering, Design for Development. Cairo, Dec.29-31, Machining Characteristics of Die Casting Aluminum Alloy GD-AlSi17Cu4FeMg. 2nd International Ain-Shams University Conference on Production Engineering, Design for Development. Cairo, Dec.29-31 The Application of Self-acting Gas-lubricated three lobe journal Bearings to High Precision Machine Tools. IASTED – International Symposium Reliability and Quality Control, Paris, France June 22,23 Selection of Substitutional Machining Methods. 11th (1st International) Annual Operation Research Conference of Zagazig University, Cairo Nov. 28-30 Influence of Skin Layer Characteristics on the Wear Behavior of Cutting Tools. 4th Cairo University Conference on Mechanical Design and Production, Dec. 27-29 Nodularity of Graphite in Ductile Cast Iron. Scientific Report, TM.94.18, Laboratory of Thermal Processing of Materials, Institute of Manufacturing Engineering, Technical University of Denmark, Lyngby, Denmark, Modifying a new Method for the evaluation of Nodularity in Ductile Cast Iron. 31st Foundry Conference and Exhibition, Brno, Czech Republic, Sept.27,28 Nodularity as an Indexof Tensile Properties of Ferritic Ductile Cast Iron. Scientific Report, TM.94.18, Laboratory of Thermal Processing of Materials, Institute of Manufacturing Engineering, Technical University of Denmark, Lyngby, Denmark, Study of Strip Rolling Process of A Nonferrous Metal. M.Sc. Thesis, BHIT Parametric Studies and Optimization of Wire Electrochemical Turning Process. M.Sc. Thesis, Benha University