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Elmahdy, H. N., B. B. S. Tawfik, and M. R. Morgan, "Ad Hoc Wireless Networks QOS Enhancement- Dynamic Simulation Approach", nternational Journal of Emerging Trends & Technology in Computer Science (IJETTCS), Impact Factor is 2.524 (ISRA:JIF), vol. 2, issue 3, pp. 138-143, 2013. morgan.pdf
Elmahdy, H. N., "Analytical Study of The Websites in The Arab World and Assessment The Role of Universities and Research Centers in Bridging The Digital Divide", The ISESCO Regional Conference on Bridging The Digital Divide through The Integration of Information and Communication Technologies in Scientific Management, Damascus, Syria, July 13 - 15, 2009.
Elmahdy, H. N., "Arabic Sign Language Translation of The Holy Quraan", The Sixteenth Conference of Arabization of Sciences, Alazhar University, Cairo, April 21-22, 2010.
Elmahdy, H. N., "Arabization of Sciences, as a Main Directory in Distance Learning", The Annual Conference of The Egyptian Society of Arabization of Sciences, Cairo, Jan 27, 2002.
Elmahdy, H. N., H. S. Sobhy, and A. M. Kotb, "ARDS: A Model for Securing Data in Mobile Cloud Computing", The Egyptian Computer Science Journal (ESC), vol. 40, issue 1, pp. 10-25, 2016. a_model_for_securing_data_in_mobile_cloud_ards.pdf
Elmahdy, H. N., M. Sharawy, Eid Emary, and I. A. Saroit, "BAT SWARM Algorithm for Wireless Sensor Networks Life Optimization", International Journal of Science and Research, vol. 3, issue 5, pp. 654-664, 2014.
Elmahdy, H. N., and M. H. Gheith, "Comparative Study of Knowledge Representation", Egyptian Computer Journal , vol. 13, issue 2, pp. 60-78, 1985.
Elmahdy, H. N., "Crossing Safely to The 21st Century and Facing its Technology Threatening", The 2nd. International Conference of Electrical Engineering, The Military Technical College, Cairo, Egypt, , Nov. 22-25, 1999.
Elmahdy, H. N., M. R. Morgan, B. B. S. Tawfik, and A. M. Kotb, "Effect of Topology Parameters Variation on AD-HOC Wireless Network Performance", The CiiT International Journal of Wireless CommunicationI, vol. 5, issue 11, pp. 426–432 , 2013. morgan2.pdf
Mohamed, T. M., H. N. Elmahdy, and H. M. Onsi, "Efficient Watermark Detection by using The Longest Common Substring Technique", Egyptian Informatics Journal, vol. 12, issue 2, pp. 115-123, 2011. taha2.pdf
Elmahdy, H. N., "Electronic Commerce: What, How, and Where?", The E-Commerce and Information Security: Chances vs. Challenges Conference, Cairo, November 16-20, 2008.
Elmahdy, H. N., "Employment of Information Technology Applicable Methodologies in Managing Educational Cybernetics", The ISESECO Regional Education Experts Meeting to Exchange Administrative Applications Experience, Cairo, October 27-31, 2007.
Taha, M. H. N., Nour El Din M. Khalifa, H. N. Elmahdy, and I. A. Saroit, "Energy Based Scheduling Scheme for Wireless Sensor Networks", CiiT International Journal of Wireless Communication,, vol. 4, issue 16, pp. 973-978, 2013. energy_based_scheduling_algorithm_for_wireless_sensor_networks_8.pdf
Elmahdy, H. N., and M. A. B. Mohamed, "Enhancing The Life Quality of Elderly Using Ambient Intelligent Technology (AmIT).", Egyptian Computer Science Journal, vol. 41, issue 3, pp. 25-32, 2017.
Elmahdy, H. N., and A. A. Fahmy, "Evaluation of WebCam Architecture Challenges", Computer Science and Engineering Journal CSE (ACSE-AIML-GVIP), vol. 1, issue 1, pp. 1-7, 2004.
Elmahdy, H. N., "Evolution of Using Information Technology in Education", The Proceedings of The First International Conference of Information and Communication Technology in Pre-University Education, Cairo, April 22-24, 2007.
Elmahdy, H. N., and T. P. Maginnis, "Fax Transmission Across Network", The Egyptian Computer Journal, vol. 25, issue 2, pp. 119-135, 1997.
Elmahdy, H. N., "Feasibility of E-Voting in Egypt after Jan. 25th Revolution", Symposium of The Election through The Communications and Information Technologies, Cairo, 29 Mar, 2011.
Elmahdy, H. N., M. Sharawi, E. Emary, and I. A. Saroit, "Flower Pollination Optimization Algorithm for Wireless Sensor Network Lifetime Global Optimization", International Journal of Soft Computing and Engineering(IJSCE), vol. 4, issue 3, pp. 54-59, 2014.
Elmahdy, H. N., M. H. Gheith, and A. A. Fahmy, "How to get benefits from Artificial Intelligence in the Countries of Arabic Co- operation Counsel", The Association of the Inhabitance of in the Countries of Arabic Co-operation Counsel, Cairo, Mar. 11-12, 1990.
Elmahdy, H. N., A. S. Anwar, K. A. R. E. E. M. KAMAL, and H. zawbaa, "Human Ear Recognition using Fuzzy K-Nearest Neighbor", The 1st. International Conference on Advanced Intelligent Systems and Informatics (Springer AISI2015), Benisuef, Egypt, pp. 1-7, 2015.
Elmahdy, H. N., 
A. S. Anwar, and 
D. K. K. A.Ghany, "Human Ear Recognition Using Geometrical Features Extraction
", International Conference on Communication, Management and Information Technology (ICCMIT 2015) Procedia Computer Science 65 ( 2015 ) pp: 529 – 537, Prague-Czech, April 20-22, 2015. procs_iccmit_anwar_camera_ready.pdfasmaa1.pdf
Elhamahmy, M. E., H. N. Elmahdy, and I. A. Saroit, "Impact of Data Set Distinction and Normalization in C5.0 Decision Tree", he Second International Conference on Cybercrime & Information Security, Egypt, Nov. 1-2, 2010.
Mahmoud, N. E., and H. N. Elmahdy, "The Impact of Frame Rate on Securing Real Time Transmission of Video over IP Networks", The IEEE International Conference on Networking and Media Convergence (ICNM'09), Cairo, Egypt, March 24-25, pp. 57-61, 2009.
Elmahdy, H. N., and M. H. N. Taha, "The Impact of Packet Size and Packet Dropping Probability on Bit Loss of VoIP Networks", ICGST International Journal on Computer Network and Internet Research, CNIR, vol. 8, issue 2, pp. 25-29, 2009.
Khalifa, S. S., H. N. Elmahdy, I. A. Saroit, and S. E. - O. H. Ahmed, "An Implementation of High Speed Bluetooth over IEEE 802.11g", CiiT International Journal of Wireless Communication, vol. 3, issue 7, pp. 546 - 552, 2011.
Alzurqa, E. A., H. N. Elmahdy, and G. Darwish, "Improved and Simple Scheduling Scheme for Real-Time Data Communication in Wireless Sensor Networks", INTERNATIONAL JOURNAL of COMPUTERS, ISSN: 1998-4308, vol. 2, issue 1, pp. 462-469, 2008.
Elmahdy, H. N., B. M.Almezgagi, and W. M. A. Shalaby, "Improved Iris Verification System", CGST Journal of Graphics, Vision Image Processing, vol. 14, issue 1, pp. 29--38, 2014. basma1.pdf
Elmahdy, H. N., and M. A. Saleh, "Improvement of Arabic Spam Web Pages Detection Using New Robust Features", The IOSR Journal of Computer Engineering (IOSR-JCE), , vol. 16, issue 2, pp. 24-35, 2014.
Elmahdy, H. N., and T. P. Maginnis, "Improving Fax Transmission Performance", The 1997 International Symposium on Multimedia Information Processing, Taipei , Taiwan, Dec. 11-13, Academia, Sinica, pp. 318-325, 1997.
Elmahdy, H. N., and M. L. Ramdan, "Improving the Performance of Anti-GPS Signal", The 11th WSEAS International Conference on AUTOMATIC CONTROL, MODELING and SIMULATION (ACMOS '09, Istanbul, Turkey, May 30 - June 1, pp. 17-22, 2009.
Dahab, Y. A., H. E. N. mahdy, and I. A. Saroit, "Improving The Performance of IEEE 802.11e using A Dynamic Adaptation Approach", CiiT International Journal of Wireless Communication, vol. 2, issue 9, pp. 276-280, 2010.
Elmahdy, H. N., A. M. I. R. A. KOTB, and K. A. R. I. M. Y. O. U. S. S. E. F. A. EL-HALIM, "Improving The Performance of Security of Real-Time Video over IP", he 10th WSEAS International Conference on APPLIED INFORMATICS AND COMMUNICATIONS (AIC '10), Taipei, Taiwan, August 20-22, pp. 135-140, 2010.
Elmahdy, H. N., K. Rajoob, M. A. Refaey, and M. A. Kotb, "Improving The Recognition of Heart Murmur", International Journal of Advanced Computer Science and Applications (IJACSA), vol. 7, issue 7, pp. 1-10, 2016. improving_the_recognition_of_heart_murmur.pdf
Elmahdy, H. N., W. Mourad, B. B. S. Tawfik, I. A. Saroit, and S. E. arek habian, "Improving Wireless Sensor Networks Life Time", The Egyptian Computer Science Journal (ESC, vol. 40, issue 1, pp. 1-9, 2016. walid-secand-paper4-ecsjournal.pdf
Elmahdy, H. N., "Integrated Arabic Closed Caption Synchronization with Arabic Sign Language by Using SMIL", The International Conference on Intelligent Computing and Information Systems CICS, Cairo, March 19-22, pp. 89-100, 2009.
Elmahdy, H. N., M. H. Gheith, and A. A. Fahmy, "A Knowledge Base System for Representing Islamic Jurisprudence Knowledge and Understanding Arabic Natural Language Query", he Association of Using Arabic Language in Information Technology, Saudi Arabia, May. 1992.
Elmahdy, H. N., "Learning in the Digital Age in Islamic Countries", The International Conference on Diffusion of ICTs in Academia: Learning in the Digital Age in Islamic Countries, Khartoum, Republic of Sudan, October 4 - 5, 2010.
Dahab, Y. A., H. E. N. mahdy, and I. A. Saroit, "A Load Aware Routing Protocol for Mobile Ad hoc Networks", CiiT International Journal of Wireless Communication, vol. 3, issue 4, pp. 254-260, 2011. paper2.pdf
Elmahdy, H. N., "Machine Learning Applications in Medical Diagnosis", IASTD International Conference on Computer Systems and Applications, Yarmouk University in Lrbid, Jordan, April 1998.