Dief, H., and Zeng, David. "Evaluating the Liquefaction Potential of Silty Sands in a Centrifuge" Proceedings of the 62nd Canadian Geotechnical Conference, GeoHalifax 2009, Halifax, Nova Scotia, Canada (September 20-24, 2009).

Dief H., and Figueroa, J.L. "Liquefaction assessment by the unit energy concept through centrifuge and torsional shear tests ", Canadian Geotechnical Journal, 44: 1286-1297, November 2007.

Dief H., and Figueroa, J.L. "Shake Table Calibration and Specimen Preparation for Liquefaction Studies in the Centrifuge", Geotechnical Testing Journal, American Society for Testing and Materials (ASTM), Vol. 26. No. 3, December 2003.

Dief H. "Correlation Studies of Measured and Predicted Bearing Capacity of Driven Piles" Housing and Building Research Center of the Egyptian Geotechnical Society Soil Mechanics and Foundations Journal, Vol. 13, Pt.1- June 2002.

Dief, H., and El-Kilany, M "The Behavior of Laterally Loaded Model Piles with Minor Anomalies in Dense Sand" Housing and Building Research Center of the Egyptian Geotechnical Society Soil Mechanics and Foundations Journal, Vol. 14, Pt.2- December 2003.

Figueroa, J.L. and Dief, H., "Effectiveness of vertical drains in reducing the liquefaction potential of silty Sands" Proceedings of the International Conference on Physical Modeling in Geotechnics-6th ICPMG, The Hong Kong University of Science and Technology, Hong Kong (August 4-6, 2006).

Dief, H. "Evaluation of the Beta Method for Pile Integrity Testing" proceedings of The Fifth International Geotechnical Engineering Conference, Cairo University, Egypt (January 11-13, 2005).

Abdel Rahman Amira, Guirguis, Nadia, and Dief, H., "Assessment of Liquefaction Potential of New Damietta, Egypt" proceedings of The International Conference on Future Vision and Challenges for Urban Development, Housing and Building Research Center, Cairo, Egypt (December 20-22, 2004).

Dief, H., and Figueroa, J.L. "Comparative Study of The Level of Energy to Liquefaction Determined from Torsional Shear and Centrifuge Tests" Proceedings of the International Conference on Physical Modeling in Geotechnics, St. John s, Newfoundland, Canada (July 10-12, 2002).

Dief, H., and Figueroa, J.L. "Dynamic Behavior of a Liquefiable Sand Deposit With Gravel Drains in the Centrifuge" Proceedings of Military Technical College 4th International Conference on Civil & Architecture Engineering, Cairo, Egypt (May 14-16, 2002)

Figueroa, J.L., Liang L. and Dief H. "Energy-based Simulation of the Seismic Response of Horizontal Soil Layers" Proceedings of the International Symposium on Geotechnical Centrifuge Modeling and Networking, The Hong Kong University of Science and Technology, Hong Kong (December 8-9, 2001)

Dief, H., and Figueroa, J.L. "Liquefaction Assessment by the Energy Method Through Centrifuge Modeling" Proceedings of the International Workshop on Earthquake Simulation in Geotechnical Engineering, Case Western Reserve University, Cleveland, Ohio, USA (November 8-10, 2001)

Dief, H., Figueroa, J.L., Saada, A.S. "Validation of the Energy-Based Method for Evaluating Soil Liquefaction in Centrifuge" Proceedings of Fourth International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics, San Diego, California, USA (March 26-31, 2001) Dief, H., and Figueroa, J.L. "Evaluation of Soil Liquefaction by Energy Principles Using Centrifuge Modeling" Proceedings of GeoEng2000 (International Conference: on Geotechnical & Geological Engineering), Melbourne, Australia (Nov. 19-24, 2000)

Figueroa, J.L., Saada, A.S., Dief H. and Dietz C. P. "Development of the Geotechnical Centrifuge at Case Western Reserve University" Proceedings of the International Conference: CENTRIFUGE 98, Tokyo, September, T. Kimura, O. Kusakabe and J. Takemura Eds, Vol. 1. (September 23-25, 1998)

Hashem M., Abdel Salam S. and Dief, H., "Experimental and Numerical Analyses of Continuous Strip Footing", Proceedings of Military Technical College Conference on Civil Engineering, Cairo, Egypt (March 5-6, 1991)