Results 21 to 30 of about 3,567 (243)
Scientific Reports, 2023 The coupled equations of pollution and aeration for flow in a river were studied under generalized assumptions in terms of parameter dependency on space and time, as well as general boundary constraints.
Philopatir B. Raafat +2 more
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The evolution of binary system from predynastic Egypt to Leibniz era [PDF]
Journal of Mahani Mathematical ResearchEgyptians of the predynastic era had a good decimal number system for counting and addition. Although, up to some times, they had problem in counting beyond a million, by the dawn of their history, Narmer, the founder of the first Egyptian dynasty had ...
Z. Pourfereidouni, M. Radjabalipour
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Identity evolution of STEM teachers in Egyptian STEM schools in a time of transition: a case study
International Journal of STEM Education, 2020 Background The study was initiated as a response to the growing Science, Technology, Engineering, and Mathematics (STEM) experience in Egypt in terms of the growing number of schools, number of students admitted, and the effect of this experience on the ...
Mohamed El Nagdi, Gillian Roehrig
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Fractal and Fractional, 2023 The main aim of this paper is to introduce a new class of orthogonal polynomials that generalizes the class of Chebyshev polynomials of the first kind. Some basic properties of the generalized Chebyshev polynomials and their shifted ones are established.
Waleed Mohamed Abd-Elhameed +1 more
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Mathematics, 2020 In this article, a progressive-stress accelerated life test (ALT) that is based on progressive type-II censoring is studied. The cumulative exposure model is used when the lifetime of test units follows Pareto-IV distribution.
A. M. Abd El-Raheem +3 more
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رؤية مقترحة لأولويات البحث في مجال "إعداد معلم الرياضيات" في ضوء المقارنة بين توجهات البحوث المعاصرة المنشورة محليًا وعالميًا (دراسة تحليلية- مقارنة- تطويرية) [PDF]
مجلة تربويات الرياضيات, 2018 يعد مجال البحث في تعليم الرياضيات وتعلمها بصفة عامة، والبحث في مجال "إعداد المعلم" بخاصة من المجالات البحثية التي حظيت باهتمام الباحثين، ومع ازدياد عدد البحوث في هذا المجال المنشورة على مختلف المستويات سواء کانت محلية أو قومية أو عالمية في مختلف المجلات ...
فاطمة فتوح أحمد الجزار
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Intelligent improvement of Kalman filter based on artificial intelligence for sensorless speed estimation and control of DC motors [PDF]
FME TransactionsThe state estimation is considered as an essential and complex task for accurate and efficient plant control and monitoring in industrial applications. The measuring system including sensors is a significant investments for any control systems to monitor
Essa Mohamed El-Sayed M. +2 more
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Awareness of Preservice Mathematics Teachers about Prehistoric and Ancient Number Systems
Malikussaleh Journal of Mathematics Learning, 2020 This study seeks to analyse the awareness of the pre-service teachers on the counting methods, systems and tools used in the prehistoric method and the Ancient period and to examine the distribution of this awareness by gender.
Nazan Mersin +2 more
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Advanced Intelligent Systems, EarlyView.This paper introduces a resource‐aware Contrastive Scattering Meta‐Learning (CSML) framework for acoustic anomaly detection. By leveraging training‐free wavelet scattering and metric‐based meta‐learning, the model achieves competitive performance with only 50 K learnable parameters—a 98% reduction compared to state‐of‐the‐art frameworks—enabling ...
Rami Zewail, Bassem Mokhtar
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Regional Science Policy &Practice, EarlyView., 2021 Abstract Knowledge and innovation have become a significant source of modern regional development. The paper aims to study the spatial association of innovation and model innovation, besides critiquing regional innovation policy, using the regional knowledge production function approach.
Mohamed Abouelhassan Ali
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