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2011
Salama, M. A., A. E. Hassanien, J. Platos, A. A. Fahmy, and V. Snasel, "Rough Sets-based Identification of Heart Valve Diseases using Heart Sounds", Conference on Intelligent Human Computer Interaction , 29-31Aug, 2011.
Hussein, M. M., and S. M. Metwalli, "INTERACTIVE BELT DRIVE MECHANICS USING CAD PROGRAM AND FINITE ELEMENT VALIDATION", FIFTH ASSIUT UNIVERSITY INTERNATIONAL CONFERENCE ON MECHANICAL ENGINEERING ADVANCED TECHNOLOGY FOR INDUSTRIAL PRODUCTION, Assiut, Egypt, 29-31 March, 2011.
Hemeida, A. M., W. A. Farag, and O. A. MAHGOUB, "Modeling and Control of Direct Driven PMSG for Ultra Large Wind Turbines", International Conference of Nuclear and Renewable Energy Engineering (ICNREE 2011), Venice, ITALY, 29 Nov, 2011. modeling_and_control_of_direct_driven_pmsg_for_ultra_large_wind_turbines.pdf
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.
Yehia, Z. A., E. A. M. Samir, S. S. Mona, and F. A. Sahar, "Shift work and occupational accidents", i 20th International Symposium on Shift work and Working Time , Sweden, 28June, 2011.
Yehia, Z. A., E. A. M. Samir, S. S. Mona, and F. A. Sahar, "Shift work and occupational accidents", 20th International Symposium on Shift work and Working Time , Sweden, 28June, 2011.
Aboul-Enein, A. M., F. A. El-Ella, E. A. Shalaby, and H. El-Shemy, "Biologically active compounds of Eichornia crassipes extract manifest potent anticancer and antioxidant activities", The 3rd EPS Global International Forum of Regional andTargeted Cancer Therapies (RTCT) , Shanghai, China, 28-30 Oct, 2011.
Hassan, H. M., W. A. Farag, A. L. Elshafei, and M. S. Saad, "Designing Pitch Controller for Large Wind Turbines via LMI Techniques", IEEE International Conference on Smart Grid and Clean Energy Technologies (ICSGCE2011), Chengdu, China, 28 September, 2011. designing_pitch_controller_for_large_wind_turbines_via_lmi_techniques1.pdf
Hatem, M.E., K. M. Abdelbary, B. A. Mohamed, and N. A. Ahmed., "Effect of two housing systems on the productive and reproductive performance of rabbits", The 4th Egyptian Conference of Rabbit Sciences, Library and Information Center, Faculty of Agriculture, Cairo University, Giza, Egypt., 28 October, 2011. effect_of_two_housing_conditions_on_the_productive_and_reproductive_performance_of_rabbits.pdf
Ghanem, A. H. M., A. S. Zaghloul, and S. El-Ayouti, "Groundwater Lowering in Multi-layer Aquifer Systems: Case Study of Esna City – Egypt", the 64th CWRA National Conference, “Our Water – Our Life – The Most Valuable Resource, St. John’s NL Canada, , 28 june, 2011.. paper-zagh_esna.pdf
Yahya, D., B. AlMogheer, S. Gouda, M. E. Ramly, and A. Abdelwahab, "Basal right ventricular entrainment is superior to apical entrainment in identifying mechanism of supraventricular tachycardia", Europace 2011, Spain, 28 June, 2011. Abstract

Introduction: Differentiation between AVNRT and AVRT can be sometimes challenging. Apical right ventricular (RV) entrainment can help in differentiation, however it has some fallacies. We thought to compare the accuracy of basal RV entrainment to RV apical entrainment in identifying the mechanism of SVT.

Methods: 42 consecutive patients with SVT undergoing catheter ablation were prospectively studied. Apical RV entrainment was performed 20 ms faster than tachycardia cycle length (TCL) initially followed by basal entrainment from the anteroseptal basal RV avoiding His or atrial capture. Postpacing interval (PPI), PPI-TCL, corrected PPI-TCL and Stim-A minus VA were measured.

Results: Entrainment was achieved from both sites of RV in 34 patients (10 men; mean age: 42±15 years), 20 with typical AVNRT, 1 with atypical AVNRT, and 13 with AVRT (8 left sided, 4 right sided, and 1 septal APs). PPI-TCL, cPPI-TCL and SA-VA were significantly longer with basal entrainment in AVNRT (171±30 vs 153±22 ms (p=0.003), 148±21 vs 131±20 ms (p=0.002) and 145±17 vs 136±15 ms (p=0.005) respectively). Receiver Operator Charecteristic (ROC) curves showed higher AUC for the above parameters with basal entrainment compared to apical entrainment. Basal PPI-TCL>110 ms had a sensitivity of 100% and a specificity of 84% for diagnosis of AVNRT. Basal cPPI-TCL>95 ms had a sensitivity of 100% and a specificity of 93% for diagnosis of AVNRT. Basal SA-VA>105 ms had a sensitivity of 100% and a specificity of 93% for diagnosis of AVNRT.

Conclusions: Entrainment from the anteroseptal basal RV is a simple maneuver that is superior to apical ventricular entrainment in identifying the mechanism of SVT.

Al-Mashat, T. M., F. A. El-Licy, and A. I. Salah, "Cloud Community Framework for Web Services Using Ontology", The 46th Annual Conference On Statistics, Computer Sciences And Operations Research, ISSR- Cairo University, Giza, Egypt, 28 December, 2011. semantic_community_cloud_framework.pdf
Mohamed, I. M., J. He, and H. A. Nasr-El-Din, "Permeability Change during CO2 Injection in Carbonate Formations: Experimental Study", SPE Production Operations Symposium, Oklahoma City, Oklahoma, USA, 27–29 March, 2011.
Hassanien, A. E., "Feature evaluation based Fuzzy C-Mean classification", Fuzzy Systems (FUZZ), 2011 IEEE International Conference on , 27-30 June 2011 . Abstract

Fuzzy C-Means Clustering, FCM, is an iterative algorithm whose aim is to find the center or centroid of data clusters that minimize an assigned dissimilarity function. The degree of being in a certain cluster can be defined in terms of the distance to the cluster-centroid. The domain knowledge is used to formulate an appropriate measure. However the Euclidean distance is considered as a general measure for such value. The calculation of the Euclidean distance doesn't take into consideration the degree of relevance of each feature to the classification model. In this paper, scoring methods like ChiMerge and Mutual information are used in the FCM model to improve the calculation of the Euclidean distance. Experimental results demonstrate the better performances of the improved FCM on UCI benchmark data sets rather than the ordinary FCM, where the ordinary FCM uses in classification either all features or the most important features while the improved FCM uses all the features but the Euclidean Distance will be calculated according to the relevance degree of each feature.

Farouk, A., and H. M. El-Boghdadi, "On the Influence of Selection Function on the Performance of Fat-Trees under Hot-Spot Traffic", The 9th ACS/IEEE International Conference on Computer Systems and Applications , Sharm El-Sheikh, Egypt, 27-30 December, 2011.
Badawy, W. A., ""The application of nanotechnology in solar cell fabrication"", Egyptian National Commission for UNESCO, November 27-29, 2011, Cairo, Egypt-UNESCOpublications , Cairo, Egypt-, 27 November, 2011.
nawar, A., D. Ragab, R. Elhusseiny, and A. Abdelaziz, " Optimization of v-v delay interval in CRT using Echocardiography compared to QRS width in surface ECG ", Europace, Madrid Spain, 27 june, 2011.
Badawy, W. A., "“Applications of nanotechnology and nanoporous structures in solar energy conversion”. ", Arab Forum 2001 "Industrial Applications of Nanotechnology", 27-29 Dec. 2011, Hilton Dream, Dreamland, 6th October City, Giza, Egypt , Hilton Dream, Dreamland, 6th October City, Giza, Egypt, 27 December, 2011.
Elsherpieny, E. A., and A. O. F. El_Maboud, "The Empirical Probability GeneratingM ethod for Inverted Poisson Distribution Based on Rapid Estimation", The 46'h Annual Conference.on Statistics, Computer Sciences and Operation Researc, ISSR. Cairo University, Egypt, 26-29Dec, 2011. emprical.pdf
Elsherpieny, E. A., and A. M. Saad, "Parameters Estimation for the Two-Parameter Gamma Distribution Using Different Methods", The 46th Anrrual Conference on Statistics, Computer Sciences and Operation Research, ISSR Cario University, Egypt, 26-29 Dec., 2011. parameters_estimation_gamma.pdf
Mohamed, A. M., M. H. Rasmy, and H. M. Abdelsalam, "Partner Selection in Virtual Enterprises with Minimum Cost and Time", proceedings of the 46th Annual Conference on Statistics, Computer Science, and Operations Research, Cairo, Egypt, 26-29 Dec., 2011. Abstract

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El-sherpieny, E. A., and M. A. Ahmed, "on The Kumaraswamy-Gumbel Minimum Distribution", The 46, Annual Conference on Statistics &Computer Science and Operation Research, ISSR- CAIRO UNIVERSITY, EGYPT, 26-29 Dec 2011. kumaraswamy.pdf
Eldin, M. M., "Dynamic Cervical Implant, Our Experience", 2nd Middle East Neurosurgical Symposium , Cairo, Egypt, 26-28 January, 2011.
Eldin, M. M., "Percutaneous Lumbar Nucleoplasty for the Treatment of Discogenic Pain", 2nd Middle East Neurosurgical Symposium , Cairo, Egypt, 26-28 January, 2011.
Eldin, M. M., "Percutaneous Lumbar Transpedicular Fixation", 2nd Middle East Neurosurgical Symposium , Cairo, Egypt, 26-28 January, 2011.
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