شبكة التخطيط العمراني بسم الله الرحمن الرحيم
للكاتبين : El-Sayed A. M. Hasaneen1, Mohamed Moness2, and Mohamed Sabry3 1Electrical Engineering Department, Faculty of Engineering, El-Minia University, El-Minia 2Computer and system Engineering Dept., Faculty of Engineering, El-Minia University, El-Minia 3Electrical Engineering Department, Faculty of Engineering, Al-Azhar University, Qena ABSTRACT This paper presents detailed analysis and design of light-emitting diodes for optoelectronic applications. Both internal and external efficiencies are …
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TIME OF USE PRICING FOR LOAD MANAGEMENT PROGRAMS IN EGYPTIAN ELECTRICITY HOLDING COMPANY
للكاتبين : * Kamel A. Shoush, ** Ahmed S. Ahmed * Al-Azhar University, Faculty Of Engineering , Nasr City – Cairo – Egypt ** Petroleum pipeline Co. Cairo –Egypt. P.O.B. 1104 Cairo, Egypt . . Abstract Load management (LM) means the strategies implemented by the electric power utility to systematically affect the utilization time and amount of electric energy by …
أكمل القراءة »EVALUATION AND UPGRADING OF PHYSICAL PROTECTION SYSTEM OF A HYPOTHETICAL NUCLEAR FACILITY AGAINST SABOTAGE THREAT
للكاتبين : A.E. Mansour * and A. A. Wadoud ** *Faculty of Engineering, Al-Azhar University, Cairo, Egypt **Nuclear Research Center, Atomic Energy Authority, Reactors Department, Cairo, Egypt ABSTRACT The physical protection system (PPS) is designed to prevent radiological sabotage and/or theft of nuclear materials present within the nuclear facility. The PPS design includes the determination of the PPS objectives, the …
أكمل القراءة »BAD-DATA PRE-CLEANING AND STATE ESTIMATION USING STATIONARITY CONDITIONS AND OPTIMAL METER-PLACEMENT OF ELECTRICAL POWER NETWORKS
للكاتب : A. E. MANSOUR Electrical Engineering Department, Faculty of Engineering, AL-Azhar University ABSTRACT In a previous work of the author, an optimal method for minimum meter configuration system of electric power network has been presented. Such a system does satisfy the necessary and sufficient conditions for the detectability and identifiability of bad-data with minimum meter number and minimum cost …
أكمل القراءة »DAIMENSIONING THE COMMUTATING CAPACITORS OF CURRENT SOURCE INVERTER FED INDUCTION MOTOR TO ACHIEVE PERIODICAL INVERTER OPERATION AND CONSTANT TORQUE RANGE
للكاتب : J. S. Abdulmalek University of 7th October/ College of Engineering/Misurata ABSTRACT The theory of analysis and design the current source inverter fed squirrel cage induction motor was fully considered in the literature. In the recent years the research is directed to improve and design the different control strategies. But the numerical design of the power circuit elements with …
أكمل القراءة »ASSESSMENT AND PERFORMANCE EVALUATION OF LOW PRIORITY SERVICES CONTROL MECHANISM VIA NETWORK END POINTS
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 …
أكمل القراءة »DEFENDING AGAINST DISTRIBUTED DENIAL OF SERVICE (DDoS) ATTACKS BY SERVER-CENTRIC ROUTER THROTTLES METHOD
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 …
أكمل القراءة »COMPARATIVE STUDY OF SWITCHED CAPACITOR FILTER TECHNIQUES
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 …
أكمل القراءة »ASSESSMENT AND PERFORMANCE EVALUATION WIMAX PHYSICAL LAYER
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 …
أكمل القراءة »AN EXPERIMENTAL STUDY TO DETERMINE THE LIFE TIME OF NATURALLY AGED TRANSFORMER OIL
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 …
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