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Community Detection Applications in Mobile Networks:Towards Data-Driven Design for Next Generation Cellular Networks

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Journal of Communications and Information Networks 2023年第2期8卷 155-163页

作者： ayman Gaber Nashwa Abdelbaki Tamer arafa School of Information Technology and Computer Science Nile UniversityGiza 12677Egypt

The existing radio access network(RAN)is facing many challenges to meet the very strict speed and latency requirements by different mobile applications in addition to the increasing pressure to reduce operating *** and development in RAN have been accelerated to tackle these challenges and to define how next generation mobile networks should look *** role of machine learning(ML)and artificial intelligence(AI)driven innovations within the RAN domain is strengthening and attracting lots of attention to tackle many of the challenging *** this paper we surveyed RAN network base stations(BSs)clustering and its applications in the *** paper also demonstrates how to leverage community detection algorithms to understand underlying community structures within *** areas(TAs)novel framework was developed by adapting existing community detection algorithm to solve the problem of statically partitioning a set of BSs into TA according to mobility ***,live network dataset in dense urban part of Cairo is used to assess how the developed framework is used to partition this part of the network more efficiently compared to other clustering *** obtained showed that the new methodology saved up to 34.6%of inter TA signaling overhead and surpassing other conventional clustering algorithms.

关键词： RAN mobility optimization RAN intelligence community detection ML

Performance Analysis of an Artificial Intelligence Nanosystem with Biological Internet of Nano Things

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Computer Modeling in Engineering & Sciences 2022年第10期133卷 111-131页

作者： Saied M.Abd El-atty Nancy a.arafa Atef Abouelazm Osama Alfarraj Konstantinos A.Lizos Farid Shawki Department of Electronics and Electrical Communications Engineering Faculty of Electronic EngineeringMenoufia UniversityMenoufEgypt Computer Science Department Community CollegeKing Saud UniversityRiyadhSaudi Arabia Department of Informatics Faculty of Mathematics and Natural SciencesUniversity of Oslo(UiO)OsloNorway

Artificial intelligence(AI)has recently been used in nanomedical applications,in which implanted intelligent nanosystems inside the human body were used to diagnose and treat a variety of ailments with the help of the Internet of biological Nano Things(IoBNT).Biological circuit engineering or nanomaterial-based architectures can be used to approach the *** nanomedical applications,the blood vascular medium serves as a communication channel,demonstrating a molecular communication system based on flow and *** paper presents a performance study of the channel capacity for flow-based-diffusive molecular communication nanosystems that takes into account the ligand-receptor binding *** earlier studies,we take into account the effects of biological physical characteristics such as blood pressure,blood viscosity,and vascular diameter on channel ***,in terms of drug transmission error probability,the inter-symbol interference(ISI)phenomenon is applied to the proposed *** numerical results show that the proposed AI nanosystems-based IoBNT technology can be successfully implemented in future nanomedicine.

关键词： Nanosystem AI Internet of biological Nano Things(IoBNT) channel capacity

A different approach for conformable fractional biochemical reaction–diffusion models

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Applied Mathematics(A Journal of Chinese Universities) 2020年第4期35卷 452-467页

作者： Anas arafa Department of Mathematics and Computer Science Faculty of SciencePort Said UniversityPort SaidEgypt

This paper attempts to shed light on three biochemical reaction-diffusion models:conformable fractional Brusselator,conformable fractional Schnakenberg,and conformable fractional *** is done using conformable residual power series(hence-form,CRPS)technique which has indeed,proved to be a useful tool for generating the ***,CRPS is an effective method of solving nonlinear fractional differential equations with greater accuracy and ease.

关键词： Brusselator model Schnakenberg model Gray-Scott model conformable fractional derivatives residual power series method

Low band gap frequencies and multiplexing properties in 1D and 2D mass spring structures

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Chinese Physics B 2016年第11期25卷 333-339页

作者： arafa H Aly Ahmed Mehaney Physics Department Faculty of Sciences Beni-Suef University

This study reports on the propagation of elastic waves in 1D and 2D mass spring *** analytical and computation model is presented for the 1D and 2D mass spring systems with different *** enhancement in the band gap values was obtained by modeling the structures to obtain low frequency band gaps at small ***,the evolution of the band gap as a function of mass value is *** attention is devoted to the local resonance property in frequency ranges within the gaps in the band structure for the corresponding infinite periodic lattice in the 1D and 2D mass spring system.A linear defect formed of a row of specific masses produces an elastic waveguide that transmits at the narrow pass band *** frequency of the waveguides can be selected by adjusting the mass and stiffness coefficients of the materials constituting the ***,we pay more attention to analyze the wave multiplexer and DE-multiplexer in the 2D mass spring *** show that two of these tunable waveguides with alternating materials can be employed to filter and separate specific frequencies from a broad band input *** presented simulation data is validated through comparison with the published research,and can be extended in the development of resonators and MEMS verification.

关键词： multiplexing waveguide tunable separate dimensions devoted verification stiffness validated infinite

Peltier Coefficient and Photon-Assisted Tunnelling in Quantum Point Contact

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Chinese Physics Letters 2008年第12期25卷 4399-4401页

作者： arafa H. Aly Department of Physics Zaragoza University Zaragoza 50009 Spain Department of Physics Inha University 402-751 South Korea Department of Physics Faculty of Sciences Beni-Suef University Egypt

We present the Peltier coefficient and thermal transport in quantum point contact （QPC）, under the influence of external fields and different temperatures. Also we obtain the oscillations of the Peltier coefficient in external fields. Numerical calculations of the Peltier coefficient are performed at different applied voltages, amplitudes and temperatures. The obtained results are consistent with the experimental data in the literature.

关键词： field emission molybdenum dioxide enhancement factor

Convenient One Pot Synthesis and Antibacterial Evaluation of Some New Mannich Bases Carrying 1,2,4-Triazolyl Moiety

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Chinese Journal of Chemistry 2011年第8期29卷 1661-1668页

作者： arafa, Wael A. A Mohamed, Asmaa S Department of Chemistry Faculty of Science Fayoum University Fayoum Egypt Department of Medical Chemistry Theodor Bilharz Research Institute Egypt

A series of Mannich bases were synthesized by a three-component Mannich reaction. The newly synthesized compounds were well characterized by elemental analyses, IR, NMR and mass spectroscopic studies. The potential antibacterial effects of the synthesized compounds were investigated using standard bacterial strains： Gram-positive and Gram-negative bacteria. Interestingly, all the synthesized compounds were observed to be promising leads, possessing moderate to significant inhibitory activity as compared to standard.

关键词： bi- 1,2,4-triazoles Schiff bases Mannich bases regioselectivity antibacterial activity

Influence of temperature on the properties of one-dimensional piezoelectric phononic crystals

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Chinese Physics B 2018年第9期27卷 342-345页

作者： Ahmed Nagaty Ahmed Mehaney arafa H Aly Physics Department Faculty of Sciences Beni-Suef University

The current study investigates the influence of temperature on a one-dimensional piezoelectric phononic crystal using tunable resonant frequencies. Analytical and numerical examples are introduced to emphasize the influence of temperature on the piezoelectric phononic crystals. It was observed that the transmission spectrum of a one-dimensional phononic crystal containing a piezoelectric material（0.7 PMN-0.3 PT） can be changed drastically by an increase in *** resonant peak can be shifted toward high or low frequencies by an increase or decrease in temperature, ***, we deduced that temperature can exhibit a large tuning in the phononic band gaps and in the local resonant frequencies depending on the presence of a piezoelectric material. Such result can enhance the harvesting energy from piezoelectric materials, especially those that are confined in a phononic crystal.

关键词： phononic crystals resonant modes piezoelectric material thermal properties and temperature

Design, Sonosynthesis, Quantum-Chemical Calculations, and Evaluation of New Mono-and Bis-pyridine Dicarbonitriles as Antiproliferative Agents

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Chinese Journal of Chemistry 2020年第5期38卷 501-508页

作者： Wael Abdelgayd Ahmed arafa Modather F.Hussein Chemistry Department College of ScienceJouf UniversityP.O.Box 2014SakakaAljoufKingdom of Saudi Arabia Chemistry Department Faculty of ScienceFayoum UniversityP.O.Box 63514Fayoum CityEgypt Chemistry Department Faculty of ScienceAl-Azhar UniversityAsyut branchEgypt

A highly efficient,simple,and clean single-step sonosynthetic procedure has been sophisticated for assembling new series of mono-and bis-pyridine dicarbonitriles from ketones,HCl,and *** presented protocol is applicable for the preparation of a broad range of uniquely substituted pyridine dicarbonitriles and seems to be superior in comparison with other previously reported *** antiproliferative impact of the newly synthesized derivatives was screened towards three representative cancer cell lines(MCF-7,A549,and HCT116).Most of the evaluated derivatives showed a moderate to excellent anti-proliferative activity towards the selected cell *** these,compounds 4h,4k,10,12a,and 12b showed both potent anticancer activity(ICs058μM)on non-tumorigenic cells(MCF-10A and NCM460),suggesting their promising potential to be lead molecules for future antitumor drug *** structure-activity relationships have been also ***,quantum chemical studies based on Density Functional Theory(DFT)of the synthesized compounds were investigated and found to be consistent with the in vitro inhibitory activities.

关键词： pyridine nitrile synthesis

Structural damage assessment criteria for reinforced concrete buildings by using a Fuzzy Analytic Hierarchy process

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Underground Space 2018年第3期3卷 243-249页

作者： Khader M.Hamdia Mohammed arafa Mamoun Alqedra Institute of Structural Mechanics Bauhaus-Universitat Weimar99423 WeimarGermany Department of Civil Engineering The Islamic University of GazaGazaPalestine

Reinforced concrete structures are often exposed to many types of damages and deteriorations due to different causes and exposure conditions during their life *** of such structures is inherently subjected to uncertainty and ambiguity,where subjective opinion and incomplete numeric data are *** the damage assessment process,estimating the importance of assessment criteria is an important field in itself,and depends heavily on the experience and expertise of *** aim of this study is to present a fuzzy-based assessment model,which estimates the importance of structural assessment criteria for concrete *** work aims also at studying,identifying,and prioritizing assessment *** assessment criteria are based on close visual inspections and simple measurements that do not require special testing or long-term *** main assessment criteria include the state of building history,environmental conditions,structural capacity,durability,and professional involvement in *** of them has two levels of *** criteria weights are obtained based on the opinions of experts using the Fuzzy Analytic Hierarchy Process(FAHP)*** application of the FAHP method showed that the most important criteria is the structural capacity with a weighting factor of 50.1%,followed by the environmental condition as second,with a weighting factor of 22.5%.

关键词： Assessment criteria Uncertainty Fuzzy logic Analytic hierarchy process Building evaluation