| Institution: | 1. Department of Mathematics, Faculty of Science, Jiangsu University, China;2. Department of Mathematics, El Obour Institutes, Cairo, Egypt;3. Department of Basic Science, Higher technological institute 10th of Ramadan city, Egypt;4. Department of Physics, College of Sciences, University of Bisha, P.O. Box 344, Bisha 61922, Saudi Arabia;5. Physics Department, Faculty of Science, Al–Azhar University, Assiut 71524, Egypt;6. Physics Department, Faculty of Science, University of Jeddah, Jeddah, Saudi Arabia;1. Institute of Transport Research, German Aerospace Center (DLR), Rutherfordstraße 2, 12489 Berlin, Germany;2. Geography Department, Humboldt-Universität zu Berlin, Unter den Linden 6, 10099 Berlin, Germany;1. School of Business IT and Logistics, RMIT University, Australia;2. Department of Analytics & Operations, NUS Business School, and The Logistics Institute-Asia Pacific, National University of Singapore, Singapore |
