للكاتبين : 1Mohamed M. Fakhr Eldin ,2 Mohsen M. Tantawy , 2 Bahnasy M. Nosier 1Arab Academy for Science and Technology and Maritime 2National Telecom. Institute ABSTRACT Low Priority Transmission Control Protocol, TCP-LP is a new distributed congestion control algorithm. TCP-LP provide low-priority service “as compared to the existing best effort” from the network end points. TCP-LP used to improve …

 للكاتبين : 1Mohamed Kiwan , 2Mohsen M. Tantawy , 2Bahnasy M. nossier 1Arab Academy for science and technology and maritime 2National Telecom. Institute ABSTRACT Distributed Denial of Service (DDoS) attacks are a significant threat to the availability of any networks and systems. This will be weighty if this network or system provides electronic governmental services. Public-access networks need to handle …

 للكاتبين : Tarek Kandil, Mohamed Askoura and El-Said A. Osman Al-Azhar University, Electrical Department Nasr City, Cairo, Egypt ABSTRACT In recent years there has been an increasing concern over the introduction of current harmonics in power supply systems owing to the use of nonlinear loads. However, conventional filtering techniques, which use passive filters, are inflexible because they cannot cope with …

 للكاتبين : 1Amr Sayed Hassan, 2 Mohsen M. Tantawy, 2Bahnasy M. nossier 1National Telecom.Regulatory Authority (NTRA) 2 National Telecom. Institute ABSTRACT WIMAX is one of Broadband Wireless Access (BWA) which offers high speed voice, video and data services for the “last mile,” which is presently dominated by the cable and digital subscriber line (DSL) technologies. The biggest advantage BWA has …

 للكاتبين : Osama El-Sayed Gouda1 And Ali Hassan Ibrahim Mansour2 1Faculty of Engineering,Cairo University,Egypt 2Faculty of Engineering,Al-azhar University Qena ,Egypt ABSTRACT Several efforts have been made over the past years to study the electrical, physical and chemicals properties of insulating oils. Among those efforts there is a property of natural aged oils (real oil samples corresponding to the scale of …

للكاتب Zoubeida HAFDI Department of electrical , University of Batna Rue Chahid Boukhlouf Mohamed El Hadi, Batna-ALGERIE  

 للكاتبين : Osama Ismail Mohammed, Hossam Fattah, and M.M.A.Zahra Faculty of Engineering, Al Azhar University Cairo –Egypt ABSTRACT One of the basic tasks for Automatic or Manual , robot’s motion control subsystem is to accurately follow a given trajectory. The error between the present posture x(t) = [x(t) y(t) '(t)]T and the reference trajectory is to be minimized , in …

Second International Conference on Energy and Sustainablity 23 – 25 June 2009 Bologna, Italy IntroductionThe way in which our Society exists, operates and develops is strongly influenced by the way in which energy is produced and consumed. No process in Industry can be performed without sufficient supply of energy, and without Industry there can be no production of commodities on …

Fifteenth International Conference on Urban Transport and the Environment 22 – 24 June 2009 Bologna, Italy  Introduction This International Conference on Urban Transport and the Environment has been successfully reconvened annually for the last fourteen years. It has always attracted a wide international spread of delegates and is well established as the premier annual event of its type. It first …

Fourth International Conference on Sustainable Development and Planning 13 – 15 May 2009 Cyprus IntroductionFollowing the success of the first three meetings (Skiathos, Greece 2003, Bologna, Italy 2005, and Algarve, Portugal 2007) it has been decided to reconvene the International Conference on Sustainable Development and Planning in 2009. The Conference addresses the subjects of regional development in an integrated way …