Papers Published in Conference Proceedings:

1- M. Abdel-Halim, S. Abdel-Khalek, “A new algorithm for image thresholding based on two-dimensional Tsallis entropy”, Conference on Computers and their Applications, Al-Azhar University, Egypt , 8 October 2008 .

2-Abdel Badeeh M. Salem , Ahmed A. A. Radwan, Mohamed A. El-Sayed, “Algorithms for Drawings of Proper Level Graphs on a Grid”, 15th International Conference on Computer Theory and Applications (ICCTA’2005) , Alexandria, Egypt, 6 - 8 September 2005.

3- Ahmed A. A. Radwan, Mohamed A. El-Sayed, “New Algorithm for Convex Grid Drawings of 3-connected Planar Graph”, INFOS 2004 Conference, Faculty of computers & information, Cairo University, 6-8 March 2004 .

4 - Ahmed A. A. Radwan, Mohamed A. El-Sayed, “Using Genetic Algorithm for Drawing Triangulated Planar Graphs ”,13th International Conference on Computer Theory and Applications (ICCTA’2003, 26 - 28 August 2003, Alexandria, Egypt

5- Ahmed A. A. Radwan, Mohamed A. El-Sayed, “New Algorithm for Drawing Planar Straight-Line Graphs”,12th International Conference on Computer Theory and Applications (ICCTA’2002), 27-29 August 2002, Alexandria, Egypt

Papers Published in Journals:

1- Ahmed A. A. Radwan, Mohamed A. El-Sayed, "A Linear-time Algorithm for Drawings a Planar Graph on an (n-2)×(n-2) Grid ", International Journal of Applied Mathematics, Volume 2 No. 4, 483-494, 2000 .

2- Ahmed A. A. Radwan, Mohamed A. El-Sayed, "Linear-time Algorithm for Convex Grid Drawings of 3-connected Planar Graph", International Journal of Applied Mathematics, Volume 2 No. 11, 1335-1348, 2000.

3- Ahmed A. A. Radwan and Mohamed A. El-Sayed , “New Algorithm for Drawing Planar Straight-Line graphs”. International Journal of Applied Mathematics, Vol. 11, No. 3 , 265-282, 2002.

4 - Ahmed A. A. Radwan, Mohamed A. El-Sayed, “Using Genetic Algorithm for Drawing Triangulated Planar Graphs”, Jour. Inst. Math. & Computer Sciences, (Comp. Sc. Ser.) Volume 15, Number 1, Pages :137-147, 2004 .

5- Ahmed A. A. Radwan, Mohamed A. El-Sayed, “New Algorithm for Convex Grid Drawings of 3-connected Planar Graph”, International Journal of Applied Mathematics, Volume 17, Number 1, Pages:107-125, 2005t

6- Abdel-Badeeh M. Salem , Ahmed A. A. Radwan, Mohamed A. El-Sayed, “Algorithms for Drawings of Proper Level Graphs on a Grid”, 15th International Conference on Computer Theory and Applications (ICCTA’2005), Egypt, 6 - 8 Sep. 2005.

7- Mohamed A. El-Sayed, S. Abdel-Khalek, “A new algorithm for image thresholding based on two-dimensional Tsallis entropy”, Accepted, 2008.