http://dspace-su.server.ly:8080/xmlui/handle/123456789/572 2026-05-03T12:59:02Z http://dspace-su.server.ly:8080/xmlui/handle/123456789/653 Impacts of U and Inverted U-Bends on Vertical Gas-Liquid Two-Phase Fluids Almabrok Abushanaf Almabrok The current work is experimentally based which is conducted on the purpose of studying the impacts of U and inverted U-bends on gas/liquid behavior in a vertical upward and downward flow line. The main instruments used are wire mesh sensor (WMS) and liquid film probes. Both devices are installed at the top and bottom locations of upward and downward sections. Probability density functions (PDFs) and time traces of averaged void fraction are applied to reveal the flow behavior inside this configuration. It is very obvious from achieved results that the flow structure in the adjacent parts of the bends is significantly different from those apart away. These bends act on distribution of the flow and change it from uniform to un uniform in adjacent straight sections of the pipeline. This is attributed to the action of centrifugal and gravitational forces that generated by the bends. The results are further explained by analysis the reconstructed images obtained from Wire Mesh Sensor technique, and circumferential distribution of liquid film that measured by conductive film probes. The data of liquid film profile are consistent with PDFs and time traces data extracted by WMS. 2023-01-01T00:00:00Z http://dspace-su.server.ly:8080/xmlui/handle/123456789/651 Cloud Computing and Artificial Intelligence: A Scoping Literature Review Naiema M.A. Mohamed In the past two decades, Cloud Computing (CC) and Artificial Intelligence (AI) technologies have witnessed amazing growth, and the majority of organizations and companies around the world have become more aware of the importance of these technologies. AI and CC together are often referred to as the "AI cloud". Using AI in the cloud can improve cloud performance and efficiency while driving digital transformation in enterprises and making business operations more efficient and strategic, while also providing additional flexibility, agility, and cost savings. As a result, AI helps make the complex processes of the AI cloud better. Academics from different fields of expertise try to solve cloud-related problems; there are an increasing number of studies underway in CC service formation and AI applications. This paper will discuss some theoretical points of view, the impact of using AI in the cloud field, and discover the most important AI techniques used to find solutions to various challenges related to the cloud 2023-01-01T00:00:00Z http://dspace-su.server.ly:8080/xmlui/handle/123456789/647 Electromagnetic Radiation Measurements from Mobile Base Stations in Sirte Fatma Shkal The main objective of this work is to evaluate the power radiated from mobile base stations by measuring the power density of chosen base stations on particular schools and sites of local communication networks in Sirte city. The measurements were conducted on three schools on which mobile phone base stations were installed and three open greenfield areas; the measurement was performed at different distances and directions from mobile base stations using RF Field Strength Meter instrument. The measured data were compared with International Commission on Non-Ionizing Radiation Protection (ICNIRP) guidelines, to ensure that the radiation levels are within the permitted levels. 2023-01-01T00:00:00Z http://dspace-su.server.ly:8080/xmlui/handle/123456789/646 Elliptic Aperture Coaxial Sensor Mabrouka Haiba A. Ehtaiba Flat open-ended coaxial sensors are increasingly popular for numerous measurement techniques, as a non-destructive method, due to the increased sensitivity and contrast obtained at microwave frequencies. The flat aperture of the sensor limits the practical application of such a method, particularly in diagnosis. In this paper, an elliptic aperture coaxial sensor with small dimensions is introduced and numerically analysed. Using finite element method, the radiation from the elliptical aperture into a two-layer dielectric medium is examined. Explicit contrast of reflection coefficient in both magnitude and phase, and high sensing depth are obtained with such a sensor aperture at low microwave frequencies of 0.1, 0.3, 1, and 3 GHz. 2023-01-01T00:00:00Z