” An Image Retrieval Approach Based on Composite Features and Graph Matching”, ICCEE 2009, Dubai –UAE, 28-30 Dec. , pp.466-473 “Robust Blind Image-Adaptive Watermarking”, 25th National Radio Science Conference ( NRSC 2008), Faculty of Engineering, Tanta University, Egypt, March 18-20, 2008. “A Back Propagation Neural Networks for 2-D Object Recognition”, Electronic Engineering Bulletin, No. 18, Faculty of Electronic Engineering, Menofia University, pp. 10-14, July . “Recognition of 2-D Shapes using Complex Neural Networks: a Novel Approach”, Journal of Engineering Applied Science, vol. 45, No. 5, Faculty of Engineering, Cairo University, pp. 811-821, Oct. “Recommendation Heuristic: A Technique for Recognizing Arabic Speech Digits”, Scientific Bulletin, Faculty of Engineering, Ain shams University, Vol. 30, part 2, No. 1. “A Real-Time System for Diagnosing Digital Circuits: A Meta Program Approach”, 3rd International Conference on Artificial Intelligence Applications, Cairo, Egypt, Jan. “A Rule Based Classifier for Handwritten Hindu Numerals”, the Annual Conference ISSR, Cairo University, Vol. 29, Part 4. “An Interactive Intelligent Knowledge Based System for Fault Diagnosis with Interpretation and Updating Facilities”, Scientific Bulletin, Faculty of Engineering, Ain-Shams University, Vol. 29, part 3. Reconstruction of High Resolution Image from a set of Blurred, warped, Undersampled, and Noisy measured Images" 6th international computer Engineering Conference, ICENCO 2010, Dec 28-29, pp. 107-112, Cairo, Egypt. An Approach for Breast Cancer Mass Detection in Mammograms", Journal of Azhar university Engineering Sector, ISSN:1110-6409 A Dynamic Skin Detector Based on Face Skin Tone Color “ A Content Based Image Retrieval Approach Based On Principal Regions Detection”, IJCSI International Journal of Computer Science Issues, Vol. 9, Issue 4, No 1,pp. 204-213, July 2012. A high speed classifier using the arithmetic Fourier Transform A combined Approach: An invariant DCT using MT transform User Authentication with Adaptive Keystroke Dynamics,IJCSI International Journal of Computer Science Issues, Vol. 10, Issue 4, No 2, July 2013 2D Face Recognition System Based on Selected Gabor Filters and Linear Discriminant Analysis LDA 3D face recognition based on normal map features using selected Gabor filters and linear discriminant analysis An Automatic Arabic Sign Language Recognition System (ArSLRS) New Blind Signature Scheme Based on Modified ElGamal Signature for Secure Electronic Voting A hybridised feature selection approach in molecular classification using CSO and GA Blind Signature Schemes based on ElGamal Signature for Electronic Voting: A Survey A Feature level Fusion of Multimodal Biometric Authentication System