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Packet Drop Battling Mechanism for Energy Aware Detection in Wireless Networks

Computers, Materials & Continua 2021年第2期66卷 2077-2086页

作者： Ahmad F.Subahi Youseef Alotaibi Osamah Ibrahim khalaf F.Ajesh Department of Computer Science University College of Al JamoumUmm Al Qura UniversityMakkah21421Saudi Arabia Department of Computer Science College of Computer and Information SystemsUmm Al Qura UniversityMakkah21421Saudi Arabia Al-Nahrain University Al-Nahrain Nanorenewable Energy Research CentreBaghdad70030Iraq Department of Computer Science and Engineering Musalair College of EngineeringKeralaIndia

Network security and energy consumption are deemed to be two important components of wireless and mobile ad hoc networks(WMANets).There are various routing attacks which harm Ad Hoc *** is because of the unsecure wireless communication,resource constrained capabilities and dynamic *** order to cope with these issues,Ad Hoc On-Demand Distance Vector(AODV)routing protocol can be used to remain the normal networks functionality and to adjust data transmission by defending the networks against black hole *** proposed system,in this work,identifies the optimal route from sender to collector,prioritizing the number of jumps,the battery life,and security,which are fundamental *** have proposed various plans for detecting the shortest route,as well as ensuring energy conversions and defense against threats and *** this regard,the packet drop attack is one of the most destructive attack against WMANet communication and hence merits special *** type of attack may allow the attacker to take control of the attacked hubs,which may lost packets or transmitted information via a wrong route during the packets journey from a source hub to a target ***,a new routing protocol method has been proposed in this *** applies the concept of energy saving systems to conserve energy that is not required by the *** proposed method for energy aware detection and prevention of packet drop attacks in mobile ad hoc networks is termed the Ad Hoc On-Demand and Distance Vector–Packet Drop Battling Mechanism(AODV–PDBM).

关键词： Wireless and mobile ad hoc networks(WMANet) packet drop attack(PDA) ad hoc on-demand distance vector(AODV) dynamic source routing(DSR) packet drop battling mechanism(PDBM)

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Fruit Image Classification Using Deep Learning

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Computers, Materials & Continua 2022年第6期71卷 5135-5150页

作者： Harmandeep Singh gill Osamah Ibrahim khalaf Youseef Alotaibi Saleh Alghamdi Fawaz Alassery Department of Computer Science Guru Arjan Dev Khalsa College Chohla Sahib143408PunjabIndia Al-Nahrain University Al-Nahrain Nano-Renewable Energy Research CenterBaghdad964Iraq Department of Computer Science College of Computer and Information SystemsUmm Al-Qura UniversityMakkah21955Saudi Arabia Department of Information Technology College of Computers and Information TechnologyTaif UniversityTaif21944Saudi Arabia Department of Computer Engineering College of Computers and Information TechnologyTaif UniversityTaif21944Saudi Arabia

Fruit classification is found to be one of the rising fields in computer and machine *** deep learning-based procedures worked out so far to classify images may have some ill-posed *** performance of the classification scheme depends on the range of captured images,the volume of features,types of characters,choice of features from extracted features,and type of classifiers *** paper aims to propose a novel deep learning approach consisting of Convolution Neural Network(CNN),Recurrent Neural Network(RNN),and Long Short-TermMemory(LSTM)application to classify the fruit *** accuracy depends on the extracted and selected optimal *** learning applications CNN,RNN,and LSTM were collectively involved to classify the *** is used to extract the image *** is used to select the extracted optimal features and LSTM is used to classify the fruits based on extracted and selected images features by CNN and *** study shows the supremacy of proposed over existing Support Vector Machine(SVM),Feed-forwardNeural Network(FFNN),and Adaptive Neuro-Fuzzy Inference System(ANFIS)competitive techniques for fruit images *** accuracy rate of the proposed approach is quite better than the SVM,FFNN,and ANFIS *** has been concluded that the proposed technique outperforms existing schemes.

关键词： Image classification feature extraction type-II fuzzy logic integrator generator deep learning

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A new nonlinear oscillator with infinite number of coexisting hidden and self-excited attractors

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Chinese Physics B 2018年第4期27卷 208-213页

作者： Yan-Xia Tang Abdul Jalil M khalaf Karthikeyan Rajagopal Viet-Thanh Pham Sajad Jafari Ye Tian College of Science Hebei North University Zhangjiakou 075000 China Engineering Technology Research Center of Population Health lnformatization in Hebei Province Zhangjiakou 075000 China Department of Mathematics Faculty of Computer Science and Mathematics University of Kufa Najaf Iraq Department of Electrical and Communication Engineering the PNG University of Technology Lae Centre for Nonlinear Dynamics Defense University Ethiopia Modeling Evolutionary Algorithms Simulation and Artificial Intelligence Faculty of Electrical & Electronics Engineering Ton Duc Thang University Ho Chi Mirth City Vietnam Biomedical Engineering Department Amirkabir University of Technology Tehran 15875-4413 Iran

In this paper,we introduce a new two-dimensional nonlinear oscillator with an infinite number of coexisting limit *** limit cycles form a layer-by-layer structure which is very *** percent of these limit cycles are self-excited attractors while sixty percent of them are hidden *** this new system to its forced version,we introduce a new chaotic system with an infinite number of coexisting strange *** implement this system through field programmable gate arrays.

关键词： chaotic oscillators multistability hidden attractors

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Development of Mobile App to Support the Mobility of Visually Impaired People

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Computers, Materials & Continua 2022年第11期73卷 3473-3495页

作者： R.Meenakshi R.Ponnusamy Saleh Alghamdi Osama Ibrahim khalaf Youseef Alotaibi Center for Artificial Intelligence&Research Chennai Institute of TechnologyKundrathur600069India Department of Information Technology College of Computers and Information TechnologyTaif UniversityTaifSaudi Arabia Al-Nahrain Nano-Renewable Energy Research Center Al-Nahrain UniversityBaghdadIraq Department of Computer Science College of Computer and Information SystemsUmm Al-Qura UniversityMakkahSaudi Arabia

In 2017,it was estimated that the number of persons of all ages visually affected would be two hundred and eighty-five million,of which thirty-nine million are *** are several innovative technical solutions available to facilitate the movement of these *** next big challenge for technical people is to give cost-effective *** of the challenges for people with visual impairments is navigating safely,recognizing obstacles,and moving freely between locations in unfamiliar environments.A new mobile application solution is developed,and the application can be installed in android *** application will visualize the environment with portable cameras and persons with visual impairment directly to the *** designed system mainly uses the YOLO3 program to identify and locate the distance between the objects and the ***,it determines the direction of the ***,the system will give the voice command to teach/inform the visually impaired people to navigate the *** is a novel work at the global *** proposed approach is cost-effective and affordable to all strata of society.

关键词： Visual Impairment cost-effective YOLO(“You Only Look Once”) computer vision object recognition CNN(Convolution Neural Networks) virtual mapping navigate voice command

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Multicomponent synthesis and designing of tetrasubstituted imidazole compounds catalyzed via ionic-liquid for acid steel corrosion protection:Experimental exploration and theoretical calculations

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Chinese Journal of Chemical Engineering 2023年第3期55卷 304-319页

作者： Hany M.Abd El-Lateef Mai M.khalaf K.Shalabi Antar A.Abdelhamid Department of Chemistry College of ScienceKing Faisal UniversityAl-Ahsa 31982Saudi Arabia Department of Chemistry Faculty of ScienceSohag UniversitySohag 82524Egypt Chemistry Department Faculty of ScienceMansoura UniversityMansouraEgypt Chemistry Department Faculty of ScienceAlbaha UniversityAlbaha 1988Saudi Arabia

Five new tetrasubstituted imidazoles were designed with outstanding yields(83%-92%) in the occurrence of ionic liquid-based-pyridinium as a catalyst. The constructions of all synthesized derivatives were established by spectral tools and their purities were verified using thin-layer chromatography(TLC), displaying single-spot. The performance of corrosion protection of the prepared imidazole derivatives was examined theoretically and practically for acid steel corrosion. The experimental study was conducted by electrochemical(electrochemical impedance spectroscopy(EIS) and Tafel polarization(PPS)) *** findings from the used approaches concluded that the synthesized compounds were wellorganized inhibitors with an efficiency of 90.7%-98.5% at 50℃ and 0.7 mmol·L^(-1). The Tafel polarization results indicate the protective action of the additives was under mixed-monitoring. The additive adsorption on the electrode interface performed as a distinguished aspect for protection. The surface exploration on the blank and protected metal was completed by field emission scanning electron microscopy(FESEM). Computational studies by Monte Carlo(MC) simulation and quantum chemical calculation(DFT)were related to practical findings. The corrosion protection adsorption mechanism was reinforced by the preferable fitted Langmuir isotherm model. All findings from the applied-inspected approaches alternately confirm each other.

关键词： Adsorption Ionic-liquid catalyst Tetrasubstituted imidazoles Corrosion Pickling acid Mathematical modeling

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Information Centric Networking Based Cooperative Caching Framework for 5g Communication Systems

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Computers, Materials & Continua 2024年第9期80卷 3945-3966页

作者： R.Mahaveerakannan Thanarajan Tamilvizhi Sonia Jenifer Rayen Osamah Ibrahim khalaf Habib Hamam Department of Computer Science and Engineering Saveetha School of EngineeringSaveetha Institute of Medical and Technical SciencesChennai602105India Department of Computer Science and Engineering Panimalar Engineering CollegeChennai600123India Department of Computer Science and Engineering Sathyabama Institute of Science and TechnologyChennai600119India Department of Solar Energy Al-Nahrain Research Center for Renewable EnergyAl-Nahrain UniversityJadriyaBaghdad64074Iraq Faculty of Engineering Universitéde MonctonNew BrunswickE1A3E9Canada Hodmas University College Mogadishu521376Somalia Bridges for Academic Excellence Tunis1002Tunisia School of Electrical Engineering University of JohannesburgAuckland ParkJohannesburg2006South Africa

The demands on conventional communication networks are increasing rapidly because of the exponential expansion of connected multimedia *** light of the data-centric aspect of contemporary communication,the information-centric network(ICN)paradigm offers hope for a solution by emphasizing content retrieval by name instead of *** 5g networks are to meet the expected data demand surge from expanded connectivity and Internet of Things(IoT)devices,then effective caching solutions will be required tomaximize network throughput andminimize the use of ***,an ICN-based Cooperative Caching(ICN-CoC)technique has been used to select a cache by considering cache position,content attractiveness,and rate *** findings show that utilizing our suggested approach improves caching regarding the Cache Hit Ratio(CHR)of 84.3%,Average Hop Minimization Ratio(AHMR)of 89.5%,and Mean Access Latency(MAL)of 0.4 *** a framework,it suggests improved caching strategies to handle the difficulty of effectively controlling data consumption in 5g *** improvements aim to make the network run more smoothly by enhancing content delivery,decreasing latency,and relieving *** improving 5g communication systems’capacity tomanage the demands faced by modern data-centric applications,the research ultimately aids in advancement.

关键词： Information-centric networking caching schemes 5g communication non-negative matrix factorization(NMF) weighted clustering algorithm

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Isotherm and kinetic studies on the adsorption of humic acid molecular size fractions onto clay minerals

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Acta geochimica 2019年第6期38卷 863-871页

作者： Mohamed E.A.El-Sayed Moustafa M.R.khalaf James A.Rice Department of Chemistry and Biochemistry South Dakota State UniversityBrookingsSD 57007USA Soils Waterand Environmental Research InstituteAgriculture Research CenterEl-GizaEgypt Chemistry Department Faculty of ScienceMinia UniversityEl-Minia 61519Egypt

Humic acid(HA)can adsorb onto mineral surfaces,modifying the physicochemical properties of the ***,understanding the sorption behavior of HA onto mineral surfaces is of particular interest,since the fate and transport of many organic and inorganic contaminants are highly correlated to HA adsorbed onto clay *** to the extreme heterogeneity of HA,the extracted IHSS Leonardite humic acid(LHA)used in this work was fractionated using an ultrafiltration technique(UF)into different molecular size fractions(Fr1,>0.2μm;Fr2,0.2 pm-300,000 daltons;Fr3,300,000-50,000 daltons;Fr4,50,000-10,000 daltons;Fr5,10,000-1000 daltons).Equilibrium and the kinetics of LHA and fraction adsorption onto kaolinite and montmorillonite were *** results demonstrated that the maximum adsorption capacity of LHA,Frl,Fr2,Fr3,Fr4,and Fr5 was 5.99,13.69,10.29,7.02,5.9&and 5.09 on kaolinite while it was 8.29,22.62,13.17,8.91,8.62,and 5.69 on montmorillonite,*** adsorption equilibrium data showed that the adsorption behavior of LHA and its fractions could be described more practically by the Langmuir model than the Freundlich *** rate of humic acid fraction adsorption onto clays increased with decreasing molecular size fraction and increasing carboxylic group ***-first-and second-order models were used to assess the kinetic data and the rate *** results explained that LHA and its fractions adsorption on clay minerals conformed more to pseudosecondo rder.

关键词： Kaolinite Montmorillonite Leonardite humic acid Humic acid fractions Kinetics Equilibrium

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Spectrum of esophageal motility disorders in patients with liver cirrhosis

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World Journal of Hepatology 2020年第12期12卷 1158-1167页

作者： Mohamed khalaf Donald Castell Puja Sukhwani Elias Department of gastroenterology and Hepatology Medical University of South CarolinaCharlestonSC 29401United States Department of Internal Medicine Medical University of South CarolinaCharlestonSC 29425United States

Disorders of esophageal motility have been described in patients with cirrhosis in a small number of *** this review,we aim to provide an overview of the available evidence on esophageal motility disorders in cirrhosis and their clinical *** review delves into the following concepts:(1)gastroesophageal reflux disease is common in liver cirrhosis due to many mechanisms;however,when symptomatic it is usually nocturnal and has an atypical presentation;(2)Endoscopic band ligation is better than sclerotherapy in terms of its effect on esophageal motility and seems to correct dysmotilities resulting from the mechanical effect of esophageal varices;(3)Chronic alcoholism has no major effects on esophageal motility activity other than lower esophageal sphincter hypertension among those with alcoholic autonomic neuropathy;(4)An association between primary biliary cholangitis and scleroderma can be present and esophageal hypomotility is not uncommon in this scenario;and(5)Cyclosporin-based immunosuppression in liver transplant patients can have a neurotoxic effect on the esophageal myenteric plexus leading to reversible achalasia-like manifestations.

关键词： Esophagus Motility Cirrhosis Dysmotility gastroesophageal reflux disease Manometry

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QoS in FANET Business and Swarm Data

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Computers, Materials & Continua 2022年第7期72卷 1877-1899页

作者： Jesús Hamilton Ortiz Carlos Andrés Tavera Romero Bazil Taha Ahmed Osamah Ibrahim khalaf Close Mobile R&D Telecommunications LS MadridEspaña COMBA I+D Research group of Universidad Santiago de Cali CaliColombia Autonomous of Madrid University MadridEspaña Al-Nahrain Nanorenewable Energy Research Center in Al-Nahrain University BagdadIraq

This article shows the quality of services in a wireless swarm of drones that form an ad hoc network between them Fly Ad Hoc Networks(FANET).Each drone has the ability to send and receive information(like a router);and can behave as a hierarchical node whit the intregration of three protocols:Multiprotocol Label Switch(MPLS),Fast Hierarchical AD Hoc Mobile(FHAM)and Internet Protocol version 6(IPv6),in conclusion MPLS+FHAM+*** metrics analyzed in the FANET are:delay,jitter,throughput,lost and sent packets/*** process was carried out with swarms composed of 10,20,30 and 40 units;In this work,the stage with 40 droneswas analyzed showing registration processes,and sentmessages sequences between different drones that were part of the same swarm.A special analysis about the traffic between drones(end-to-end)was carried out,as well as the possible security flaws in each drone and the current status and future trends in real *** future trends,in a real environment,we took as a starting point,metrics results obtained in the simulation(positive according to the obtained results).These results gave us a clear vision of how the network will behave in a real environment with the aim to carry out the experiment on a physical level in the near *** work also shows the experience quality from the service quality metrics obtained through a mathematical *** quality of experience model will allow us to use it objectively in the agricultural sector,which is a great interest area and is where we are working with *** in this article we show our advances for a business model applied to the aforementioned agricultural sector,as well as the data analysis and services available to the end *** services available to the end customer have been classified into a basic,medium,advanced and plus level.

关键词： Ad hoc home agent(AHA) ad hoc mobile node(AMN) ad hoc correspondent node(ACN) ad hoc mobile anchor point(AMAP) fast hierarchical AD hoc mobile IPv6(FHAMIPv6) label switching router(LSR)label edge router(LER) mobile ad hoc networks(MANET)fly ad hoc network(FANET) quality of services(QoS) quality of experience(QoE)

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Fault Coverage-Based Test Case Prioritization and Selection Using African Buffalo Optimization

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Computers, Materials & Continua 2023年第3期74卷 6755-6774页

作者： Shweta Singhal Nishtha Jatana Ahmad F Subahi Charu gupta Osamah Ibrahim khalaf Youseef Alotaibi Indira gandhi Delhi Technical University for Women Delhi110006India Maharaja Surajmal Institute of Technology New Delhi110058India Department of Computer Science University College of Al JamoumUmm Al-Qura UniversityMakkah21421Saudi Arabia Bhagwan Parshuram Institute of Technology RohiniNew Delhi110085India Al-Nahrain University Al-Nahrain Nanorenewable Energy Research CenterBaghdad64074Iraq Department of Computer Science College of Computer and Information SystemsUmm Al-Qura UniversityMakkah21955Saudi Arabia

Software needs modifications and requires revisions *** to these revisions,retesting software becomes essential to ensure that the enhancements made,have not affected its bug-free *** time and cost incurred in this process,need to be reduced by the method of test case selection and *** is observed that many nature-inspired techniques are applied in this *** Buffalo Optimization is one such approach,applied to regression test selection and *** this paper,the proposed work explains and proves the applicability of the African Buffalo Optimization approach to test case selection and *** proposed algorithm converges in polynomial time(O(n^(2))).In this paper,the empirical evaluation of applying African Buffalo Optimization for test case prioritization is done on sample data set with multiple *** astounding 62.5%drop in size and a 48.57%drop in the runtime of the original test suite were *** obtained results are compared with Ant Colony *** comparative analysis indicates that African Buffalo Optimization and Ant Colony Optimization exhibit similar fault detection capabilities(80%),and a reduction in the overall execution time and size of the resultant test *** results and analysis,hence,advocate and encourages the use of African Buffalo Optimization in the area of test case selection and prioritization.

关键词： Test case prioritization regression testing test case selection African buffalo optimization nature-inspired meta-heuristic

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