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modeling and Analysis of UAV-Assisted mobile Network with Imperfect Beam Alignment

Computers, materials & Continua 2023年第1期74卷 453-467页

作者： mohamed Amine Ouamri Reem Alkanhel Cedric Gueguen manal Abdullah Alohali sherif S.m.Ghoneim University of Rennes 1/ADOPNET team at IRISA laboratory Rennes35000France Facultéde Technologie Laboratoire d’Informatique Médicale(LIMED)Universitéde BejaiaBejaia06000Algérie Department of Information Technology College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Department of Information Systems College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Electrical engineering department College of EngineeringTaif University P.O.Box 11099Taif21944Saudi Arabia

With the rapid development of emerging 5G and beyond(B5G),Unmanned Aerial Vehicles(UAVs)are increasingly important to improve the performance of dense cellular *** a conventional metric,coverage probability has been widely studied in communication systems due to the increasing density of users and complexity of the heterogeneous *** recent years,stochastic geometry has attracted more attention as a mathematical tool for modeling mobile network *** this paper,an analytical approach to the coverage probability analysis of UAV-assisted cellular networks with imperfect beam alignment has been *** assumption was considered that all users are distributed according to Poisson Cluster Process(PCP)around base stations,in particular,Thomas Cluster Process(TCP).Using thismodel,the impact of beam alignment errors on the coverage probabilitywas ***,the ProbabilityDensity Function(PDF)of directional antenna gain between the user and its serving base station was ***,association probability with each tier was achieved.A tractable expression was derived for coverage probability in both Line-of-Sight(LoS)andNon-Line-of-Sight(NLoS)condition *** results demonstrated that at low UAVs altitude,beam alignment errors significantly degrade coverage ***,for a small cluster size,alignment errors do not necessarily affect the coverage performance.

关键词： Unmanned aerial vehicles coverage analysis stochastic geometry millimeter wave imperfect beam alignment

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Stability Scrutinization of Agrawal Axisymmetric Flow of Nanofluid through a Permeable moving Disk Due to Renewable Solar Radiation with Smoluchowski Temperature and maxwell Velocity Slip Boundary Conditions

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Computer modeling in Engineering & Sciences 2023年第2期134卷 1371-1392页

作者： Umair Khan Aurang Zaib Anuar Ishak Iskandar Waini El-Sayed m.sherif Dumitru Baleanu Department of mathematical Sciences Faculty of Science and TechnologyUniversiti Kebangsaan MalaysiaBangi43600Malaysia Department of mathematics and Social Sciences Sukkur IBA UniversitySukkur65200Pakistan Department of mathematical Sciences Federal Urdu University of ArtsScience&TechnologyKarachi75300Pakistan Fakulti Teknologi Kejuruteraan mekanikal dan Pembuatan Universiti Teknikal Malaysia MelakaMelaka76100Malaysia mechanical Engineering Department College of EngineeringKing Saud UniversityRiyadh11423Saudi Arabia Department of mathematics Cankaya UniversityAnkara06790Turkey Institute of Space Sciences Magurele077125Romania Department of medical Research China Medical University HospitalChina Medical UniversityTaichung40447Taiwan

The utilization of solar energy is essential to all living things since the beginning of *** addition to being a constant source of energy,solar energy(SE)can also be used to generate heat and *** technology enables to convert the solar energy into electricity by using thermal solar *** energy is perhaps the most easily accessible and plentiful source of sustainable ***-based nanofluid has been considered as a method to improve solar collector performance by absorbing incoming solar energy *** goal of this research is to explore theoretically the Agrawal axisymmetric flow induced by Cu-water nanofluid over a moving permeable disk caused by solar ***,the impacts of maxwell velocity and Smoluchowski temperature slip are incorporated to discuss the fine points of nanofluid flow and characteristics of heat *** primary partial differential equations are transformed to similarity equations by employing similarity variables and then utilizing bvp4c to resolve the set of equations *** current numerical approach can produce double solutions by providing suitable initial *** addition,the results revealed that the impact of solar collector efficiency enhances significantly due to nanoparticle volume *** suction parameter delays the boundary layer ***,stability analysis is performed and is found that the upper solution is stable and physically trustworthy while the lower one is unstable.

关键词： Agrawal axisymmetric flow solar energy nanofluid heat transfer slip conditions

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Fault Diagnosis in Robot manipulators Using SVm and KNN

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Intelligent Automation & Soft Computing 2023年第2期35卷 1957-1969页

作者： D.maincer Y.Benmahamed m.mansour mosleh Alharthi sherif S.m.Ghonein Laboratoire de Robotiques Parallélisme et Systèmes Embarquer Département Automatique et ControlUniversitédes Sciences et Technologie Houari BoumedieneAlgiersAlgeria Laboratoire de Recherche en Electrotechnique Ecole Nationale PolytechniqueB.P 182El-Harrach16200AlgiersAlgeria Electrical Engineering Department College of EngineeringTaif UniversityP.O.Box 11099Taif21944Saudi Arabia

In this paper,Support Vector machine(SVm)and K-Nearest Neighbor(KNN)based methods are to be applied on fault diagnosis in a robot manipulator.A comparative study between the two classiﬁers in terms of successfully detecting and isolating the seven classes of sensor faults is considered in this *** both classiﬁers,the torque,the position and the speed of the manipulator have been employed as the input ***,it is to mention that a large database is needed and used for the training and testing *** SVm method used in this paper is based on the Gaussian kernel with the parametersγand the penalty margin parameter“C”,which were adjusted via the PSO algorithm to achieve a maximum accuracy *** were carried out on the model of a Selective Compliance Assembly Robot Arm(SCARA)robot manipulator,and the results showed that the Particle Swarm Optimization(PSO)increased the per-formance of the SVm algorithm with the 96.95%accuracy while the KNN algo-rithm achieved a correlation up to 94.62%.These results showed that the SVm algorithm with PSO was more precise than the KNN algorithm when was used in fault diagnosis on a robot manipulator.

关键词： Support Vector machine(SVm) Particle Swarm Optimization(PSO) K-Nearest Neighbor(KNN) fault diagnosis manipulator robot(SCARA)

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Efficient Data Compression of ECG Signal Based on modified Discrete Cosine Transform

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Computers, materials & Continua 2022年第6期71卷 4391-4408页

作者： Ashraf mohamed Ali Hassan mohammed S.Alzaidi sherif S.m.Ghoneim Waleed El Nahal Electronics and Communications Engineering Department Faculty of EngineeringSinai UniversityArishCO 45511Egypt Department of Electrical Engineering College of EngineeringTaif UniversityTaif21944Saudi Arabia Faculty of Technology and Education Suez UniversitySuez43527Egypt Electronics and Communications Engineering Department Faculty of EngineeringMSA UniversityCO 12585Egypt

This paper introduced an efficient compression technique that uses the compressive sensing(CS)method to obtain and recover sparse electrocardiography(ECG)*** recovery of the signal can be achieved by using sampling rates lower than the Nyquist frequency.A novel analysis was proposed in this *** apply CS on ECG signal,the first step is to generate a sparse signal,which can be obtained using modified Discrete Cosine Transform(mDCT)on the given *** transformation is a promising key for other transformations used in this search domain and can be considered as the main contribution of this paper.A small number of wavelet components can describe the ECG signal as related work to obtain a sparse *** technique for ECGsignal compression,which is a novel area of research,is *** signals are introduced randomly between any successive beats of the ***-BIH database can be represented as the experimental database in this domain of ***-BIH database consists of various ECG signals involving a patient and standard ECG *** can be considered as the simulation tool used in this *** proposed method’s uniqueness was inspired by the compression ratio(CR)and achieved by *** performance measurement of the recovered signal was done by calculating the percentage root mean difference(PRD),mean square error(mSE),and peak signal to noise ratio(PSNR)besides the calculation of ***,the simulation results indicated that this work is one of the most important works in ECG signal compression.

关键词： Compressive sensing sparse beats of hearts compression ratio percentage root mean difference

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Classification of Electroencephalogram Signals Using LSTm and SVm Based on Fast Walsh-Hadamard Transform

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Computers, materials & Continua 2023年第6期75卷 5271-5286页

作者： Saeed mohsen sherif S.m.Ghoneim mohammed S.Alzaidi Abdullah Alzahrani Ashraf mohamed Ali Hassan Electronics and Communications Engineering Department Al-Madinah Higher Institute for Engineering and TechnologyGiza12947Egypt Department of Artificial Intelligence Engineering Faculty of Computer Science and EngineeringKing Salman International University(KSIU)South Sinai46511Egypt Department of Electrical Engineering College of EngineeringTaif UniversityTaif21944Saudi Arabia Department of Electronics and Communications Engineering October High Institute for Engineering and Technology6th of October CityGiza12596Egypt

Classification of electroencephalogram(EEG)signals for humans can be achieved via artificial intelligence(AI)***,the EEG signals associated with seizure epilepsy can be detected to distinguish between epileptic and non-epileptic *** this perspective,an automated AI technique with a digital processing method can be used to improve these *** paper proposes two classifiers:long short-term memory(LSTm)and support vector machine(SVm)for the classification of seizure and non-seizure EEG *** classifiers are applied to a public dataset,namely the University of Bonn,which consists of 2 classes–seizure and *** addition,a fast Walsh-Hadamard Transform(FWHT)technique is implemented to analyze the EEG signals within the recurrence space of the ***,Hadamard coefficients of the EEG signals are obtained via the ***,the FWHT is contributed to generate an efficient derivation of seizure EEG recordings from non-seizure EEG ***,a k-fold cross-validation technique is applied to validate the performance of the proposed *** LSTm classifier provides the best performance,with a testing accuracy of 99.00%.The training and testing loss rates for the LSTm are 0.0029 and 0.0602,respectively,while the weighted average precision,recall,and F1-score for the LSTm are 99.00%.The results of the SVm classifier in terms of accuracy,sensitivity,and specificity reached 91%,93.52%,and 91.3%,*** computational time consumed for the training of the LSTm and SVm is 2000 and 2500 s,*** results show that the LSTm classifier provides better performance than SVm in the classification of EEG ***,the proposed classifiers provide high classification accuracy compared to previously published classifiers.

关键词： Electroencephalogram LSTm SVm fast Walsh-Hadamard transform seizure accuracy sensitivity specificity

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A focus on parietal cells as a renewing cell population

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World Journal of Gastroenterology 2010年第5期16卷 538-546页

作者： sherif m Karam Department of Anatomy Faculty of Medicine and Health Sciences United Arab Emirates University Al-Ain PO Box 17666 United Arab Emirates

The fact that the acidsecreting parietal cells undergo continuous renewal has been ignored by many gastroenterologists and cell biologists. In the past, it was thought that these cells were static. However, by using 3Hthymidine radioautography in combination with electron microscopy, it was possible to demonstrate that parietal cells belong to a continuously renewing epithelial cell lineage. In the gastric glands, stem cells anchored in the isthmus region are responsible for the production of parietal cells. The stem cells give rise to three main progenitors: prepit, preneck and preparietal cells. Parietal cells develop either directly from the noncycling preparietal cells or less commonly via differentiation of the cycling prepit and preneck cell progenitors. The formation of a parietal cell is a sequential process which involves diminishment of glycocalyx, production of cytoplasmic tubulovesicles, an increase in number and length of microvilli, an increase in number and size of mitochondria, and fi nally, expansion and invagination of the apical membrane with the formation of an intracellular canalicular system. Little is known about the genetic counterparts of these morphological events. However, the time dimension of parietal cell production and the consequences of its alteration on the biological features of the gastric gland are well documented. The production of a new parietal cell takes about 2 d. However, mature parietal cells have a long lifespan during which they migrate bidirectionally while their functional activity for acid secretion gradually diminishes. Following an average lifespan of about 54 d, in mice, old parietal cells undergo degeneration and elimination. Various approaches for genetic alteration of the development of parietal cells have provided evidence in support of their role as governors of the stem/progenitor cell proliferation and differentiation programs. Revealing the dynamic features and the various roles of parietal cells would help

关键词： Cell differentiation Cell dynamics Cell renewal Oxyntic gland Oxyntic mucosa Parietal cell Preparietal cell

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Double Deep Q-Network method for Energy Efficiency and Throughput in a UAV-Assisted Terrestrial Network

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Computer Systems Science & Engineering 2023年第7期46卷 73-92页

作者： mohamed Amine Ouamri Reem Alkanhel Daljeet Singh El-sayed m.El-kenaway sherif S.m.Ghoneim University Grenoble Alpes CNRSGrenoble INPLIGDRAKKAR Teams38000GrenobleFrance Laboratoire d’informatique médical Universitéde BejaiaTarga OuzemourQ22R+475Algeria Department of Information Technology College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Department of Research and Development Centre for Space ResearchSchool of Electronics and Electrical EngineeringLovely Professional UniversityPhagwara144411India Department of Communication and Electronics Delta Higher Institute of Engineering and TechnologyMansouraEgypt Electrical Engineering Department College of EngineeringTaif UniversityP.O.BOX 11099Taif21944Saudi Arabia

Increasing the coverage and capacity of cellular networks by deploying additional base stations is one of the fundamental objectives of fifth-generation(5G)***,it leads to performance degradation and huge spectral consumption due to the massive densification of connected devices and simultaneous access *** meet these access conditions and improve Quality of Service,resource allocation(RA)should be carefully ***,RA problems are nonconvex optimizations,which are performed using heuristic methods,such as genetic algorithm,particle swarm optimization,and simulated ***,the application of these approaches remains computationally expensive and unattractive for dense cellular ***,artificial intelligence algorithms are used to improve traditional RA *** learning is a promising tool for addressing resource management problems in wireless *** this study,we investigate a double deep Q-network-based RA framework that maximizes energy efficiency(EE)and total network throughput in unmanned aerial vehicle(UAV)-assisted terrestrial ***,the system is studied under the constraints of ***,the optimization problem is formulated as a mixed integer nonlinear *** this framework,we evaluated the effect of height and the number of UAVs on EE and ***,in accordance with the experimental results,we compare the proposed algorithm with several artificial intelligence *** results indicate that the proposed approach can increase EE with a considerable throughput.

关键词： UAV terrestrial network reinforcement learning mmWave resource allocation

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Robust and High Accuracy Algorithm for Detection of Pupil Images

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Computers, materials & Continua 2022年第10期73卷 33-50页

作者： Waleed El Nahal Hatim G.Zaini Raghad H.Zaini sherif S.m.Ghoneim Ashraf mohamed Ali Hassan Electronics and Communications Engineering Department Faculty of EngineeringMSA UniversityCO12585Egypt Computer Engineering Department College of Computer and Information TechnologyTaif UniversityTaif21944Saudi Arabia Faculty of Health and Rehabilitation Sciences Princess Nourah bint Abdulrahman UniversityRiyadhSaudi Arabia Department of Electrical Engineering College of EngineeringTaif UniversityTaif21944Saudi Arabia Electronics and Communications Engineering Department Faculty of EngineeringSinai UniversityArishCO45511Egypt

Recently,many researchers have tried to develop a robust,fast,and accurate *** algorithm is for eye-tracking and detecting pupil position in many applications such as head-mounted eye tracking,gaze-based human-computer interaction,medical applications(such as deaf and diabetes patients),and attention *** real-world conditions challenge the eye appearance,such as illumination,reflections,and *** the other hand,individual differences in eye physiology and other sources of noise,such as contact lenses or *** present work introduces a robust pupil detection algorithm with and higher accuracy than the previous attempts for real-time analytics *** proposed circular hough transform with morphing canny edge detection for Pupillometery(CHmCEP)algorithm can detect even the blurred or noisy images by using different filtering methods in the pre-processing or start phase to remove the blur and noise and finally the second filtering process before the circular Hough transform for the center fitting to make sure better *** performance of the proposed CHmCEP algorithm was tested against recent pupil detection *** and results show that the proposed CHmCEP algorithm achieved detection rates of 87.11,78.54,58,and 78 according to´Swirski,ExCuSe,Else,and labeled pupils in the wild(LPW)data sets,*** results show that the proposed approach performs better than the other pupil detection methods by a large margin by providing exact and robust pupil positions on challenging ordinary eye pictures.

关键词： Pupil detection eye tracking pupil edge morphing techniques eye images dataset

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Engineered Cleistogamy in Camelina sativa for bioconfinement

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Horticulture Research 2023年第2期10卷 275-285页

作者： Debao Huang Liwei Gao Jeremy mcAdams Fangzhou Zhao Hongyan Lu Yonghui Wu Jeremy martin sherif msherif Jayasankar Subramanian Hui Duan Wusheng Liu Department of Horticultural Science North Carolina State UniversityRaleighNC 27607USA College of Life Sciences Ganzhou Normal UniversityGanzhouJiangxi 341000China National Center for Soybean Improvement State Key Laboratory of Crop Genetics and Germplasm EnhancementNanjing Agricultural UniversityNanjingJiangsu 210095China College of Food Science and Engineering Wuhan Polytechnic UniversityWuhanHubei 430048China Sandhills Research Station North Carolina State UniversityJackson SpringsNC 27281USA Vineland Research Station Department of Plant AgricultureUniversity of GuelphVinland StationON LOR 2E0Canada Alson H.Smith Jr.Agricultural Research and Extension Center School of Plant and Environmental SciencesVirginia TechWinchesterVA 22602USA USDA-ARS U.S.National ArboretumFloral and Nursery Plants Research UnitBeltsville Agricultural Research Center(BARC)-WestBeltsvilleMD 20705USA

Camelina sativa is a self-pollinating and facultative outcrossing oilseed *** engineering has been used to improve camelina yield potential for altered fatty acid composition,modified protein profiles,improved seed and oil yield,and enhanced drought *** deployment of transgenic camelina in the field posits high risks related to the introgression of transgenes into nontransgenic camelina and wild ***,effective bioconfinement strategies need to be developed to prevent pollen-mediated gene f low(PmGF)from transgenic *** the present study,we overexpressed the cleistogamy(i.e.f loral petal non-openness)-inducing PpJAZ1 gene from peach in transgenic *** camelina overexpressing PpJAZ1 showed three levels of cleistogamy,affected pollen germination rates after anthesis but not during anthesis,and caused a minor silicle abortion only on the main *** also conducted field trials to examine the effects of the overexpressed PpJAZ1 on PmGF in the field,and found that the overexpressed PpJAZ1 dramatically inhibited PmGF from transgenic camelina to non-transgenic camelina under the field ***,the engineered cleistogamy using the overexpressed PpJAZ1 is a highly effective bioconfinement strategy to limit PmGF from transgenic camelina,and could be used for bioconfinement in other dicot species.

关键词： drought expressing limit

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multi-mode Frequency Reconfigurable Conformal Antenna for modern Electronic Systems

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Computers, materials & Continua 2022年第11期73卷 3861-3877页

作者： Abir Zaidi Esraa mousa Ali Abdullah G.Alharbi Salah Ud-Din Khan mohammad Alsharef mohammed S.Alzaidi sherif S.m.Ghoneim Laboratory EEA&TI Faculty of Science and Techniques(FSTM)MohammediaHassan II UniversityCasablancaMorocco Faculty of Aviation Sciences Amman Arab UniversityAmman11953Jordan Department of Electrical Engineering Faculty of EngineeringJouf UniversitySakaka42421Saudi Arabia Sustainable Energy Technologies Center College of EngineeringKing Saud UniversityP.O.Box 800Riyadh11421Saudia Arabia Electrical Engineering Department College of EngineeringTaif UniversityP.O.Box 11099Taif21944Saudi Arabia

The article presents a miniaturized monopole antenna dedicated to modern flexible electronic *** antenna combines three fundamental properties in a single ***,it is characterized by a compact size compared to the state-of-the-art literature with an overall size of 18×18×0.254 mm3,secondly,the proposed antenna integrates the reconfigurability function of frequency,produced by means of a Positive-IntrinsicNegative(PIN)diode introduced into the radiating ***,the antenna is able to switch between different frequencies and different modes,making it suitable to meet the ever-changing demands of communication ***,the antenna is equipped by the property of *** fact,a conformability test is performed and has demonstrated the stability of the antenna performance under normal and bending ***,in order to demonstrate the potential of the proposed antenna,a comparison between the simulated and measured results is made and turned out to be a strong agreement,making the antenna an excellent candidate for future miniaturized rigid and conformal devices.

关键词： monopole antenna frequency reconfigurable co-planar waveguide(CPW)fed flexible electronics compact size

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