“A Computer Package for Adjusting Two Dimensional Geodetic Networks.” The Third International Symposium on Recent Crustal Movements in Africa. “Optimal Design Problem for Geodetic Monitoring Networks Using Simulation Process.” Second Conference on Civil Engineering, M.T.C. “Towards Orthometric Heights Determination From Applications of Gravimetric Geoid (GEOID95) Combined With GPS Observations in Egypt”. Al Azhar University (C.E.R.M) Vol. 18, No 7, pp 884-905, Cairo, Egypt Dec. ”Geodynamical Studies Using GPS Measurement at the Area Around Greater Cairo, Egypt”. The Ninth International Symposium on Recent Crustal Movements (CRCM’ 98), Cairo, Egypt . "Potential of planemetric accuracy of single Ikonos Imagry " Al Azhar University (C.E.R.M) Vol 23. No 3, Cairo, Egypt July . "Analysis of the Established Egyptian National Gravity Standardization Network of 1997 (ENGSN97)". Al Azhar University (C.E.R.M) Vol 23. No 3, Cairo, Egypt July . "Obtaining Orthometric Heights with High Accuracy by GPS Observations over Small Areas in Egypt". Al Azhar University (C.E.R.M) Vol 23. No 4, Cairo, Egypt October . “Performance of Global Geopotential Earth Models Over Egypt as an Alternative for the Unavailable Accurate Local Geoid Model.” Al Azhar University (C.E.R.M), Vol. (23), No. (3), July. “A Proposed Approach to Update Large-Scale Maps in Developing Countries Using High-Resolution Satellite Imagery.” Al Azhar University (C.E.R.M), Vol. (24), No. (1), January . “Visibility Study Towards the Implementation of GPS Real Time Kinematic Positioning Technique (GPS-RTK) in Cadastral Maps Production in Egypt.” Al Azhar University (C.E.R.M), Vol. (24), No. (3), July . "Comparative Study for Different Transformation Models Applied on Geodetic Coordinate Systems". Al Azhar University (C.E.R.M) Vol 25. No 3, Cairo, Egypt October . " Application of High-Resolution Satellite Imagery for Large Scale Maps Updating". Engineering Research Journal (E.R.J) Shoubra Faculty of Engineering Vol 1, Cairo, Egypt June. "Creation and Verification of Digital Elevation Model (DEM) Applied to Sinai Peninsula". Engineering Research Journal (E.R.J) Shoubra Faculty of Engineering Vol 1, Cairo, Egypt June. "Accuracy Investigation of the Ortho-rectification Strategies for High-Resolution Satellite Images ". Al Azhar University (C.E.R.M ) Vol 26. No 2, Cairo, Egypt April. "Classification and Generalization Approach for the Automatic Extraction of Buildings from High Resolution Satellite Images”. Al Azhar University (C.E.R.M )Vol 27. No 3, Cairo, Egypt October. "Investigation the Effect of Using The Local Datum Instead of WGS – 84 in Processing the GPS Observation´´ , Al Azhar University (CERM), Vol. 27 No. 2 pp 519 – 530 . Cairo, Egypt April . "Optimum Implementation of the Polynomials in Coordinate Transformation Process”, AL Azhar University (C.E.R.M), Vol.27 No. 2 pp 500 – 518. Cairo, Egypt April. " Semi automated Mosaic Algorithm For Close Range Photogrammetry ”. Helwan University, Engineering Research Journal Vol 108. Mataria, Egypt. "Remove-Restore Techniques for Improving the Datum Transformation Process´´, AL Azhar University (C.E.R.M), Vol. 28 No. 1 Cairo, Egypt January. ”Accuracy Assessment of Modern Classification Techniques For Automatic Feature Extraction From Very High Satellite Imagery” Al Azhar University (C.E.R.M )Vol 29. No 3, Cairo, Egypt July . ”Automatic Building Extraction using a Distance from a Variant Mean Classification and Hough Transforms”., Al Azhar University (C.E.R.M ), Vol. 31 No. 1,Cairo. ” Performance evaluation of classification trees for building detection from aerial images and lidar data: a comparison of classification trees models”. Reviewed and accepted for the International Journal of Remote Sensing, Manuscript ID TRES-PAP-0626. ”Evaluation of the self-organizing map classifier for building detection from lidar data and multispectral aerial images”. Journal of Spatial Science, Vol. (54), No. (2), December. ” Aerial images and lidar data fusion for automatic feature extraction using the self-organizing map (SOM) classifier”, In: Bretar F, Pierrot-Deseilligny M, Vosselman G (Eds), Laser scanning 2009, IAPRS, Vol. XXXVIII, Part 3/W8 – Paris, France, September 1-2, pp. 317 – 322 ” The Relationship between Mean Sea Levels of the Mediterranean and the Red Seas through Port Said and Sues”First international conference for arab union of surveyours, Lebanon 2009 “ The Effect of Different Tropospheric Models on long Baselines ”, Journal of The National Res. Inst. of Astronomy and Geophysics Ser. No."G21" (Special Issue ).Cairo , Egypt. “Crustal Deformation Studies in the Northern Part of Aswan Lake using GPS Technique” Journal of The National Res. Inst. of Astronomy and Geophysics Ser. No."G28" (Special Issue ).Cairo , Egypt. “Absolute Sea Level Rise Estimation at Alexandria Using Tide Records and GPS Observations” FIG working week in morocco -May. Effect of Doppler Station Separation on Strengthening Terrestrial Networks.(C.E.R.M), Al Azhar University, July 1985. “A Regional Best Fitting Datum for Egypt.” Scientific Bulletin, Ain Shams University, 1988 Towards a Quick and Reasonable Orientation of the Recent Established Triangulation Nets in Egypt Combination of Doppler Networks with Terrestrial Networks.” (C.E.R.M), Al Azhar University, July 1985 “A Proposed Method for Establishing Third or Lower Order Ground Control Points Using Classical Intersection Technique Combined with E.D.M. Measurements.” Scientific Bulletin, Ain Shams University, 1989 “Reliability Analysis of Different Transformation Models between Terrestrial and Satellite systems as Applied to the Egyptian Geodetic Networks.” (C.E.R.M), Al Azhar University, 1989. “Merits of Minimizing the Squares of the Deflection Components versus Minimizing the Squares of Geoidal Undulations for Determining Best Fitting Datum’s.” Scientific Bulletin, Ain Shams University, 1989 “Merits of Using Inner Accuracy Theory in Adjusting First Order Leveling Networks.” The Third International Symposium on Recent Crustal Movements in Africa, 1990. “Enhancement of the Egyptian Gravimetric Geoid 1995 Using GPS Observations.” Presented in The International Union of Geodesy (IUG) on GIS/GPS Symposium, Istanbul, Turkey, 15-19 Sept. 1997. “Which Geoid Fits Egypt Better. ” Presented in The International Union of Geodesy (IUG) on GIS/GPS Symposium, Istanbul, Turkey, 15-19 Sept. 1997. “Sea Surface Topography For The Red Sea And The Eastern Part Of The Mediterranean Sea Based On Ers-1 Satellite Altimetry Data Analysis.” Presented in The Fifth International Conference Of Al Azhar University Dec 1997 Three Dimensional Adjustment and Simulation for the Egyptian Geodetic Networks.” Fifth Regional Cartographic Conference for Africa, Cairo, Egypt, 1983. “ Sea Surface Slope and Variation Along the Egyptian Delta Coast”First international conference for arab union of surveyours, Lebanon 2009. "Investigating the Behavior of the Earth's Crust in Sinai Peninsula after the Earthquake of 1995". Al Azhar University (C.E.R.M) Vol 24. No 1, Cairo, Egypt June (2002). “The Use of GPS Technology in Establishing Third Order Geodetic Networks in Egypt”, The Bulletin of the Faculty of Engineering, Al Azhar University, Egypt ,March 1998. .,” Integrating multiple classifiers with fuzzy majority voting for improved land cover classification”. Accepted in part A of volume 39(3) of the ISPRS International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences. PVC 2010 international conference ,paris,France,1-3 September (2010). “Combining statistical and neural classifiers using Dempster-Shafer theory of evidence for improved building detection.” ,the 15Th Australian Remote Sensing and Photogrammetry Conference. Alice Springs, 13-17 September (2010). Multiple polynomial-based generation of DEM from topographic contour data Towards a semi-kinematic datum for Egypt Developing a New Dry Zenith Path Delay Model for Egypt Towards a good urban development plan in Sinai through land site suitability maps Real Geodetic Map (Map without Projection) Realization of unification height system between Arab regions