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10 articles for “A. K. Helmy”
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Review ArticleOpen accessIn the author namesE-Commerce Challenges, Definitions, Solutions and EvaluationYehia Helmy, Merna Ashraf, Laila AbdelhamidIn the e-commerce [business-to-consumer] domain, where the number of options is overwhelming. New enterprises must filter, prioritize and use important information efficiently in order to compete effectively and achieve a competitive advantage. There are numerous inventive solutions available to assist new firms in succeeding in the fast-paced worldwide expansion of e-commerce and overcoming these hurdles. This study examines the various … …Journal of Computer Science, Vol. 19, Issue 9 · 17 Aug 2023 · 6,503 accessesView PDFCite
Research ArticleOpen accessIn the author namesEffect of Gamma Radiation on Oil Quality of Dried Mint LeavesAbd El-Rahman Abd El-Raouf Ahmed, Gamal Kamal Arafa, Helmy El-Sayed Hassan, Hend Nabil MohamedThe green mint crop is considered a medicinal and aromatic plant grown in most of Egypt's governors and it has multiple uses, whether it is used fresh or dried or mint oil is extracted from it and mint is also known as its medicinal importance as research has proven that it has many health benefits. This research was conducted to … …American Journal of Agricultural and Biological Sciences, Vol. 15, Issue 1 · 25 May 2020 · 7,468 accessesView PDFCite
Research ArticleOpen accessIn the author namesA Clustering based Approach for Contextual Anomaly Detection in Internet of ThingsDina ElMenshawy, Waleed Helmy, Neamat El-TaziInternet of Things (IoT) is a network which connects different communication devices with the internet to attain quick, robust and real-time information transfer and communication, achieving intelligent management. IoT is still in its infancy so it faces numerous challenges varying from data management to security concerns. Sensors generate enormous quantities of data that need to be handled efficiently to have … …Journal of Computer Science, Vol. 15, Issue 8 · 24 Aug 2019 · 7,587 accessesView PDFCite
Research ArticleOpen accessIn the author namesBasalt as Pozzolana and Filler in Ordinary Portland CementH. El-Didamony, I.M. Helmy, Randa M. Osman, A.M. HabboudPozzolana is defined as a siliceous or siliceous and aluminous materials which in itself possess little or no cementing properties, but will in a finally divided form and in the presence of moisture react with Ca(OH)2 at ordinary temperature to form compound possessing cementious properties. Pozzolanic cement contains Portland cement as one of their main components in addition to natural … …American Journal of Engineering and Applied Sciences, Vol. 8, Issue 2 · 24 Jun 2015 · 7,908 accessesView PDFCite
Research ArticleOpen accessIn the author namesSUPER RESOLUTION FOR EGYPTSAT-1 IMAGES WITH ERRATIC SHIFTA. H. Nasr, Gh.S. El-Tawel, A. K. HelmyThe key point of the Super-Resolution (SR) process is the accurate registration of the low resolution images, i.e., accurate measuring of the fixed shift between them, to obtain high resolution image. Due to certain malfunction, some Egyptsat-1 images have inconsistent sub-pixel shift. Therefore, in this study we propose a methodology to use this kind of shift for reconstructing a SR … …Journal of Computer Science, Vol. 10, Issue 7 · 17 Jun 2014 · 6,945 accessesView PDFCite
Research ArticleOpen accessIn the author namesNeural Network Change Detection Model for Satellite Images Using Textural and Spectral CharacteristicsA. K. Helmy, Gh. S. El-TaweelProblem statement: Change detection is the process of identifying difference of the state of an object or phenomena by observing it at different time. Essentially, it involves the ability to quantify temporal effects using multi-temporal data sets. Information about change is necessary for evaluating land cover and the management of natural resources. Approach: A neural network model based on both … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 4 · 4 Nov 2010 · 8,162 accessesView PDFCite
Research ArticleOpen accessIn the author namesSpeckle Suppression of Radar Images Using Normalized ConvolutionA. K. Helmy, G. S. El-TaweelProblem statement: Synthetic Aperture Radar (SAR) images are becoming more widely used in remote sensing applications. SAR uses microwave radiation to illuminate the earth's surface. The coherent microwave illumination, however, suffers from fading effects result in generating a multiplicative speckle noise that corrupts SAR images. Approach: Through this study, scheme to reduce speckles was proposed, it was designed to accomplish … …Journal of Computer Science, Vol. 6, Issue 10 · 5 Aug 2010 · 7,264 accessesView PDFCite
Research ArticleOpen accessIn the author namesBoarding School Students Monitoring Systems (E-ID) Using Radio Frequency IdentificationHerdawatie Bt Abdul Kadir, Mohd Helmy Abd. Wahab, Siti Nurul Aqmariah Bt Mohd KanafiahProblem statement: Monitoring Boarding school student movement using the old-fashioned study system is inefficient and brings difficulty to the hostel management to check attendance manually. By using RFID technology, student movement is quick and easy. Approach: The application of RFID Matrix Card system as a boarding school students monitoring system (E-ID) were purposed to improve school management system and to … …Journal of Social Sciences, Vol. 5, Issue 3 · 30 Sep 2009 · 9,122 accessesView PDFCite
Research ArticleOpen accessIn the author namesPerformance Evaluation of a QoS-Aware Mechanism for Polling-Based High-Speed Network InterfacesSalman Al-Qahtani, Tarek Helmy, Khaled SalahThe explosive growth of the high-speed multimedia networks and the widespread use of web-based related applications place new demands on the network servers. The network end systems such as PC-Router, network server and host connected to high speed links must satisfy QoS requirements for multimedia traffics such as delay and loss ratio. Most works on operating systems support for high-speed … …Journal of Computer Science, Vol. 1, Issue 4 · 31 Dec 2005 · 6,570 accessesView PDFCite
Research ArticleOpen accessIn the author namesEffect of Tropical Alfalfa on Cholesterol (Egg and Blood) and Layer Chicken Meat QualityBambang Suwignyo, Eprilia Aristia Rini, Heru Sasongko et al.Tropical alfalfa is a cultivar of alfalfa with high protein content and good adaptability with the local name Kacang Ratu BW. The supplementation of duck feed with tropical alfalfa or Kacang Ratu BW may reduce the cholesterol levels in duck meat with the presence of saponin. This study aimed to determine the effects of Kacang Ratu BW supplementation on egg … …American Journal of Animal and Veterinary Sciences, Vol. 18, Issue 3 · 22 Sep 2023 · 5,249 accessesView PDFCite