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Articles 1 - 30 of 152
Full-Text Articles in Physical Sciences and Mathematics
Digital Computer Calculation Of Potential And Potential Gradient Around Bundled Three Phase Lines, Adel Lamei Stefanos
Digital Computer Calculation Of Potential And Potential Gradient Around Bundled Three Phase Lines, Adel Lamei Stefanos
Archived Theses and Dissertations
No abstract provided.
A Framework For Phrase Based Smt In The Technical Translation Domain, Hisham Farouk Khodeir
A Framework For Phrase Based Smt In The Technical Translation Domain, Hisham Farouk Khodeir
Archived Theses and Dissertations
No abstract provided.
Using Parallel Primary Caches To Improve Capacity And Bandwidth, John Rubena Wani
Using Parallel Primary Caches To Improve Capacity And Bandwidth, John Rubena Wani
Archived Theses and Dissertations
No abstract provided.
Error Correction In Quantum Cryptography, Mohamed Salah El Ashmawy
Error Correction In Quantum Cryptography, Mohamed Salah El Ashmawy
Archived Theses and Dissertations
No abstract provided.
Some Optical And Electrical Properties Of Cadmium Sulfide And Lead Sulfide Thin Films Prepared By Electron Beam Deposition, Achiri Celestine Tange
Some Optical And Electrical Properties Of Cadmium Sulfide And Lead Sulfide Thin Films Prepared By Electron Beam Deposition, Achiri Celestine Tange
Archived Theses and Dissertations
No abstract provided.
Resource Optimization Property Manager For Autonomic Computing, Hazem A. M. Sharaf El Din
Resource Optimization Property Manager For Autonomic Computing, Hazem A. M. Sharaf El Din
Archived Theses and Dissertations
No abstract provided.
Moment-Preserving Piecewise Approximation For 1-D And 2-D Signals, Soha M. A. A. Seif
Moment-Preserving Piecewise Approximation For 1-D And 2-D Signals, Soha M. A. A. Seif
Archived Theses and Dissertations
No abstract provided.
Shape Similarity By Deformation Using Polynomial Transformation, Hanan M. Moussa
Shape Similarity By Deformation Using Polynomial Transformation, Hanan M. Moussa
Archived Theses and Dissertations
No abstract provided.
Applying Simulated Annealing As An Intelligent Genetic Mutation Operator For Finding Most Probable Explanations On Bayesian Belief Networks, Sahr Attia Afara
Applying Simulated Annealing As An Intelligent Genetic Mutation Operator For Finding Most Probable Explanations On Bayesian Belief Networks, Sahr Attia Afara
Archived Theses and Dissertations
No abstract provided.
Recurrent Connectionist Models For Map Explanation In Bayesian Networks, Murad Assaggaf
Recurrent Connectionist Models For Map Explanation In Bayesian Networks, Murad Assaggaf
Archived Theses and Dissertations
No abstract provided.
Evidence For Quasi-Periodic Oscillations In The Recurrent Emission From Magnetars And Their Implications On The Neutron Star Properties And Equation Of State, Ahmed Monzer El Mezeini
Evidence For Quasi-Periodic Oscillations In The Recurrent Emission From Magnetars And Their Implications On The Neutron Star Properties And Equation Of State, Ahmed Monzer El Mezeini
Archived Theses and Dissertations
In this thesis, we present an analysis of highly magnetized neutron stars â magnetarsâ , in search for high frequency oscillations in the recurrent emission from the soft gamma repeater SGR 1806-20, and we discuss the physical interpretation of these oscillations and its implications on the neutron star properties and structure. We present evidence for Quasi-Periodic Oscillations (QPOs) in the recurrent outburst activity from the soft gamma repeater SGR 1806-20 using Rossi X-ray Timing Explorer (RXTE) observations. By searching a large sample of bursts for timing signals at the frequencies of the QPOs discovered in the 2004 December 27 giant …
Web Service Quality-Dased Profiling And Selection, Ahmed Magdi Hamza
Web Service Quality-Dased Profiling And Selection, Ahmed Magdi Hamza
Archived Theses and Dissertations
Guaranteeing quality of service has been recently labeled as one of multiple major research challenges in the service oriented architecture. In effect, Web service selection from a set of matched services offering the same functional requirements, and ultimately claiming certain quality of service guarantees about themselves is not enough. A need emerges for the existence of a trusted third party that monitors Web service quality indicators, yet in a way that does not interfere with the normal operation of the Web service itself. The third party will eventually provide consumers with guarantees about Web service quality. In this research we …
Detecting Malicious Vbscripts Using Anomaly Host Based Ids Based On Principal Component Analysis (Pca), Racha M. El-Sokkary
Detecting Malicious Vbscripts Using Anomaly Host Based Ids Based On Principal Component Analysis (Pca), Racha M. El-Sokkary
Archived Theses and Dissertations
No abstract provided.
Atp Synthase: Investigating Its In Vivo Rotation And Testing The Inhibitory Effects Of Diarylquinolines, Sarah Hassan Radwan
Atp Synthase: Investigating Its In Vivo Rotation And Testing The Inhibitory Effects Of Diarylquinolines, Sarah Hassan Radwan
Archived Theses and Dissertations
No abstract provided.
Effect Of Pressure On The Electrical Transport And Structural Properties Of Ybnio3, Mostafa Gala El Dine Zeama
Effect Of Pressure On The Electrical Transport And Structural Properties Of Ybnio3, Mostafa Gala El Dine Zeama
Archived Theses and Dissertations
No abstract provided.
Measuring Atmospheric Scattering From Digital Images Of Urban Scenery Using Temporal Polarization-Based Vision, Tarek El-Gaaly
Measuring Atmospheric Scattering From Digital Images Of Urban Scenery Using Temporal Polarization-Based Vision, Tarek El-Gaaly
Archived Theses and Dissertations
Suspended atmospheric particles (particulate matter) are a form of air pollution that visually degrades urban scenery and is hazardous to human health and the environment. Current environmental monitoring devices are limited in their capability of measuring average particulate matter (PM) over large areas. Quantifying the visual effects of haze in digital images of urban scenery and correlating these effects to PM levels is a vital step in more practically monitoring our environment. Current image haze extraction algorithms remove all the haze from the scene and hence produce unnatural scenes for the sole purpose of enhancing vision. We present two algorithms …
An Extended Configurable Uml Activity Diagram And A Transformation Algorithm For Business Process Reference Modeling, Yosra Osama Badr
An Extended Configurable Uml Activity Diagram And A Transformation Algorithm For Business Process Reference Modeling, Yosra Osama Badr
Archived Theses and Dissertations
Enterprise Resource Planning (ERP) solutions provide generic off-the-shelf reference models usually known as "best practices". The configuration !individualization of the reference model to meet specific requirements of business end users however, is a difficult task. The available modeling languages do not provide a complete configurable language that could be used to model configurable reference models. More specifically, there is no algorithm that monitors the transformation of configurable UML Activity Diagram (AD) models while preserving the syntactic correctness of the model. To fill these gaps we propose an extended UML AD modeling language which we named Configurable UML Activity Diagram (C-UML …
Software Quality Attribute Measurement And Analysis Based On Class Diagram Metrics, Dalia Rizk
Software Quality Attribute Measurement And Analysis Based On Class Diagram Metrics, Dalia Rizk
Archived Theses and Dissertations
Software quality measurement lies at the heart of the quality engineering process. Quality measurement for object-oriented artifacts has become the key for ensuring high quality software. Both researchers and practitioners are interested in measuring software product quality for improvement. It has recently become more important to consider the quality of products at the early phases, especially at the design level to ensure that the coding and testing would be conducted more quickly and accurately. The research work on measuring quality at the design level progressed in a number of steps. The first step was to discover the correct set of …
Diffraction Of X-Waves From Multiple Rectangular Slits In An Opaque Screen, Ahmed El Saeed El Halawani
Diffraction Of X-Waves From Multiple Rectangular Slits In An Opaque Screen, Ahmed El Saeed El Halawani
Archived Theses and Dissertations
No abstract provided.
Performance Evaluation Of The Factored Model For Arabic To English Phrase Based Statistical Machine Translation, Mireille Anwar
Performance Evaluation Of The Factored Model For Arabic To English Phrase Based Statistical Machine Translation, Mireille Anwar
Archived Theses and Dissertations
No abstract provided.
Geotechnical Investigation Of The New Site Of The American University In Cairo, Yehia Abdel Maksoud Abdallah Eissa
Geotechnical Investigation Of The New Site Of The American University In Cairo, Yehia Abdel Maksoud Abdallah Eissa
Archived Theses and Dissertations
No abstract provided.
Ab Initio Techniques For Methane, Nora Mohamed Hassan Mohamed
Ab Initio Techniques For Methane, Nora Mohamed Hassan Mohamed
Archived Theses and Dissertations
No abstract provided.
Pulsed Laser Deposition Of Bismuth Telluride Compounds For Human Body Energy Scavengers, Ahmed Abdel Aziz
Pulsed Laser Deposition Of Bismuth Telluride Compounds For Human Body Energy Scavengers, Ahmed Abdel Aziz
Archived Theses and Dissertations
No abstract provided.
Modeling And Design Of High Force Rfmems Contact Switches, Joseph Eid Estefanous Zekry
Modeling And Design Of High Force Rfmems Contact Switches, Joseph Eid Estefanous Zekry
Archived Theses and Dissertations
This thesis describes the modeling and design issues of high force electrostatically actuated RFMEMS contact switches. Various reliability issues and challenges are associated with the design of RFMEMS contact switches. The reliability of microcontacts is of major importance in increasing the lifetime of such devices. A semi-analytical model based on the beam deflection theory is developed to calculate the contact force delivered by parallel-plate electrostatically actuated switch structures. The model is capable of fast and accurate static solution for complicated switch structures which are normally analyzed using finite element analysis techniques. High force designs are presented together with finite element …
Seismic Field Survey Of The Ground Of The National Research Institute Of Astronomy And Geophysics, Mohamed Said Hanno
Seismic Field Survey Of The Ground Of The National Research Institute Of Astronomy And Geophysics, Mohamed Said Hanno
Archived Theses and Dissertations
No abstract provided.
Investigation Of Auni5 Films Deposited By Laser Ablation For Rf Mems Switches, Noha Sameh Ahmed Farghal
Investigation Of Auni5 Films Deposited By Laser Ablation For Rf Mems Switches, Noha Sameh Ahmed Farghal
Archived Theses and Dissertations
No abstract provided.
An Experimental Study Of Single Mode Fiber-Optic Sensors, Joumana Mohamed Taysir El-Rifai
An Experimental Study Of Single Mode Fiber-Optic Sensors, Joumana Mohamed Taysir El-Rifai
Archived Theses and Dissertations
This thesis is intended to investigate and study various types of single-mode fiber optic sensors. Single-mode fibers will be first defined and understood in order to proceed. We will provide a description of their geometry, the method by which they propagate light and how they can be utilized as sensors. Attention will also be paid to the nature of the optical components used with single-mode fibers, such as: optical sensors and detectors. Since single-mode fiber sensors depend essentially on the interference and the coherence of light, they will also be discussed. Finally, three different single-mode fiber sensor setups will be …
Surface And Acidic Properties Of Mixed Zirconium And Titanium Oxides, Sofi-Rosamelia Bahgat Mahmoud Bahgat
Surface And Acidic Properties Of Mixed Zirconium And Titanium Oxides, Sofi-Rosamelia Bahgat Mahmoud Bahgat
Archived Theses and Dissertations
he surface and acidic properties of mixed sulfated zirconium and titanium oxides were investigated in the present study. One mode of preparation was followed entailing the use of zirconium sulfate and titanium oxysulfate as starting materials in a 1:1 ratio, and ammonium hydroxide as a precipitating agent. The resulting oxides were subjected to different extents of washing with water to vary their sulfate content. The mixed oxides were then analyzed by nitrogen adsorption, infrared spectroscopy, differential thermal analysis, thermogravimetric analysis, and elemental analysis for sulfur content. The number of acidic sites was determined from the saturation values of the adsorption …
Parallel Versus Iterated: Comparing Population Oriented And Chained Sequential Simulated Annealing Approaches To Cost-Based Abduction, Heba Abdallah Amer
Parallel Versus Iterated: Comparing Population Oriented And Chained Sequential Simulated Annealing Approaches To Cost-Based Abduction, Heba Abdallah Amer
Archived Theses and Dissertations
Stochastic search techniques are used to solve NP-hard combinatorial optimization problems. Simulated annealing, genetic algorithms and hybridization of both, all attempt to find the best solution with minimal cost and time. Guided Evolutionary Simulated Annealing is one technique of such hybridization. It is based on evolutionary programming where a number of simulated annealing chains are working in a generation to find the optimum solution for a problem. Abduction is the problem of finding the best explanation to a given set of observations. In AI, this has been modeled by a set of hypotheses that need to be assumed to prove …
Detecting Malicious Vbscripts Using Anomaly Host Based Ids Based On Principal Component Analysis (Pca), Racha El Sokkary
Detecting Malicious Vbscripts Using Anomaly Host Based Ids Based On Principal Component Analysis (Pca), Racha El Sokkary
Archived Theses and Dissertations
Intrusion detection research over the last twenty years has focused on the threat of individuals illegally hacking into systems. Nowadays, intrusion threat to computer systems has changed radically. Instead of dealing with hackers, most current works focus on defending the system against code-driven attacks. Today’s web script codes such as VBScript are receiving increasing focus as a backdoor for attacking many computers through e-mail attachments or infected web sites. The nature of these malicious codes is that they can spread widely causing serious damages to many applications. Moreover, the majority of anti-virus tools used today are able to detect known …