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Cross-Layer Hidden Markov Analysis for Intrusion Detection

Computers, Materials & Continua 2022年第2期70卷 3685-3700页

作者： K.Venkatachalam P.Prabu b.Saravana balaji byeong-Gwon Kang Yunyoung Nam mohamed Abouhawwash Department of Computer Science and Engineering CHRIST(Deemed to be University)Bangalore560074India Department of Computer Science CHRIST(Deemed to be University)Bangalore560029India Department of Information Technology Lebanese French UniversityErbil44001KRIraq Department of ICT Convergence Soonchunhyang UniversityAsan31538Korea Department of Mathematics Faculty of ScienceMansoura UniversityMansoura35516Egypt Department of Computational Mathematics Scienceand Engineering(CMSE)Michigan State UniversityEast Lansing48824MIUSA

Ad hoc mobile cloud computing networks are affected by various issues,like delay,energy consumption,flexibility,infrastructure,network lifetime,security,stability,data transition,and link *** the issues above,route failure is prevalent in ad hoc mobile cloud computing networks,which increases energy consumption and delay and reduces *** issues may affect several interconnected nodes in an ad hoc mobile cloud computing *** address these weaknesses,which raise many concerns about privacy and security,this study formulated clustering-based storage and search optimization approaches using cross-layer *** proposed approaches were formed by cross-layer analysis based on intrusion detection ***,the clustering process based on storage and search optimization was formulated for clustering and route maintenance in ad hoc mobile cloud computing ***,delay,energy consumption,network lifetime,and link accomplishment are highly addressed by the proposed *** hidden Markov model is used to maintain the data transition and distributions in the *** data communication network,like ad hoc mobile cloud computing,faces security and confidentiality ***,the main security issues in this article are addressed using the storage and search optimization ***,the new algorithm developed helps detect intruders through intelligent cross layer analysis with theMarkov *** proposed model was simulated in Network Simulator 3,and the outcomes were compared with those of prevailing methods for evaluating parameters,like accuracy,end-to-end delay,energy consumption,network lifetime,packet delivery ratio,and throughput.

关键词： Data transition end-to-end delay energy consumption flexibility hidden Markov model intrusion detection link optimization packet delivery ratio privacy security searching throughput

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ON SINGULAR EQUATIONS INVOLVING FRACTIONAL LAPLACIAN

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Acta Mathematica Scientia 2020年第5期40卷 1289-1315页

作者： Ahmed YOUSSFI Ghoulam OULD mohamed MAHMOUD National School of Applied Sciences Sidi mohamed ben Abdellah University-Fez Laboratory of Mathematical Analysis and Applications My Abdellah Avenue Road ImouzerP.O.Box 72 Fes-Principale30000FezMorocco National School of Applied Sciences Sidi mohamed ben Abdellah University-Fez My Abdellah Avenue Road ImouzerP.0.Box 72 Fes-Principale30000FezMorocco

We study the existence and the regularity of solutions for a class of nonlocal equations involving the fractional Laplacian operator with singular nonlinearity and Radon measure data.

关键词： fractional Laplacian singular elliptic equations measure data

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Modeling and Simulation of Two Axes Gimbal Using Fuzzy Control

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Computers, Materials & Continua 2022年第7期72卷 93-107页

作者： Ayman A.Aly mohamed O.Elhabib bassem F.Felemban b.Saleh Dac-Nhuong Le Department of Mechanical Engineering College of EngineeringTaif UniversityTaif21944Saudi Arabia Control and Mechatronics Division School of Electrical EngineeringUTMJohor Bahru81300Malaysia Institute of Research and Development Duy Tan UniversityDanang550000Vietnam School of Computer Science Duy Tan UniversityDanang550000Vietnam

The application of the guided missile seeker is to provide stability to the sensor’s line of sight toward a target by isolating it from the missile motion and *** main objective of this paper is not only to present the physical modeling of two axes gimbal system but also to improve its performance through using fuzzy logic controlling *** paper is started by deriving the mathematical model for gimbals motion using Newton’s second law,followed by designing the mechanical parts of model using SOLIDWORKS and converted to xml file to connect dc motors and sensors using MATLAb/***,a Mamdani-type fuzzy and a Proportional-Integral-Derivative(PID)controllers were designed using MATLAb *** performance of both controllers was evaluated and tested for different types of input *** simulation results showed that self-tuning fuzzy controller provides better performance,since no overshoot,small steady-state error and small settling time compared to PID controller.

关键词： Gimbal system self-tuning fuzzy proportional-integral-derivative(PID)control cross coupling

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New Polymer Syntheses Part 60: A Facile Synthetic Route to Polyamides based on Thieno[2,3-b]thiophene and Their Corrosion Inhibition behavior

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Chinese Journal of Polymer Science 2018年第7期36卷 835-847页

作者： Kamal I.Aly Amr H.Moustafa Essam K.Ahmed Hany M.Abd El-lateef mohamed Gamal mohamed Sahar M.mohamed Polymer Research Lab Chemistry Department Faculty of Science Assiut University Chemistry Department Faculty of Science Sohag University Chemistry Department Faculty of Science Minia University Chemistry Department College of Science King Faisal university

Polyamides containing thieno[2,3-b]thiophene moiety were prepared via a simple polycondensation reaction of the diaminothieno[2,3-b]thiophene monomer la with different kinds of diacid chlorides （including oxalyl, adipoyl, sebacoyl, isophthaloyl, terephthaloyl, 4,4＇-azodibenzoyl, 3,3＇-azodibenzoyl, p-phenylene diacryloyl） in the presence of LiC1 and NMP as a solvent through lowtemperature solution polycondensation. The chemical structures of model compound and synthesized polyamides were confirmed by FTIR, nuclear magnetic resonance spectroscopy （including 1 H-NMR and 13 C-NMR） and elemental analysis. In addition, the thermal stability, crystallinity structure and surface morphology of synthesized polyamides were characterized via thermogravametric analysis （TGA）, wide-angle X-ray diffraction analysis （WAXD） and scanning electron microscopy （SEM）. Also, the corrosion inhibition behavior of selected examples ofpolyamides was investigated; the inhibitive effect of the investigated polymers for carbon steel in 1.0 mol＇L-1 HCI was studied using potentiodynamic polarization （PDP） and electrochemical impedance spectroscopy （EIS） methods. PDP results displayed that the polyamides containing thieno[2,3-b]thiophene moiety can be as mixed-type inhibitors. The inhibition efficiency （P, %） was found to be in the range from 67.13% to 96.01%. There is an increase in P by the synthesized polymers in comparison to the starting monomer. The adsorption of these polymers was found to obey Langmuir adsorption isotherm.

关键词： Thieno[2 3-b]thiophene Polymer synthesis Thermal properties Industrial applications Corrosion inhibition

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Analytical approximate solution for nonlinear space-time fractional Klein Gordon equation

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Chinese Physics b 2013年第1期22卷 33-38页

作者： Khaled A. Gepreel mohamed S. mohameda Mathematics Department Faculty of Science Zagazig University Zagazig Egypt Mathematics Department Faculty of Science Taif University Taif Saudi Arabi Mathematics Department Faculty of Science Al-Azhar University Nasr City 11884 Cairo Egypt

The fractional derivatives in the sense of Caputo and the homotopy analysis method are used to construct an approximate solution for the nonlinear space-time fractional derivatives Klein-Gordon equation. The numerical results show that the approaches are easy to implement and accurate when applied to the nonlinear space-time fractional derivatives Klein- Gordon equation. This method introduces a promising tool for solving many space-time fractional partial differential equations. This method is efficient and powerful in solving wide classes of nonlinear evolution fractional order equations.

关键词： homotopy analysis method nonlinear space-time fractional Klein-Gordon equation Caputo derivative

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Distribution network reconfiguration using feasibility-preserving evolutionary optimization

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Journal of Modern Power Systems and Clean Energy 2019年第3期7卷 589-598页

作者： Alberto LANDEROS Slawomir KOZIEL mohamed FAbDEL-FATTAH School of Science and Engineering Reykjavik University101 ReykjavikIceland Faculty of Electronics Telecommunications and InformaticsGdansk University of Technology80-233Gdan′skPoland

Distribution network reconfiguration(DNR) can significantly reduce power losses, improve the voltage profile, and increase the power quality. DNR studies require implementation of power flow analysis and complex optimization procedures capable of handling large combinatorial problems. The size of distribution network influences the type of the optimization method to be applied. Straightforward approaches can be computationally expensive or even prohibitive whereas heuristic or meta-heuristic approaches can yield acceptable results with less computation cost. In this paper, a customized evolutionary algorithm has been introduced and applied to power distribution network reconfiguration. The recombination operators of the algorithm are designed to preserve feasibility of solutions(radial structure of the network) thus considerably reducing the size of the search space. Consequently, improved repeatability of results as well as lower overall computational complexity of the optimization process have been achieved. The optimization process considers power losses and the system voltage profile, both aggregated into a scalar cost function. Power flow analysis is performed with the Open Distribution System Simulator,a simple and efficient simulation tool for electric distribution systems. Our approach is demonstrated using several networks of various sizes. Comprehensive benchmarking indicates superiority of the proposed technique over state-of-the-art methods from the literature.

关键词： Distribution network reconfiguration(DNR) Feasibility-preserving evolutionary optimization Power loss reduction Radial networks Voltage profile

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Generalized thermoelasticity of the thermal shock problem in an isotropic hollow cylinder and temperature dependent elastic moduli

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Chinese Physics b 2012年第1期21卷 289-294页

作者： Ibrahim A.Abbas mohamed I.A.Othman Department of Mathematics Faculty of Science and Arts-KhulaisKing AbdulAziz UniversityJeddahSaudi Arabia Department of Mathematics Faculty of ScienceSohag UniversitySohagEgypt Department of Mathematics Faculty of ScienceZagazig UniversityP.O.Box 44519ZagazigEgypt

In this paper, we construct the equations of generalized thermoelasicity for a non-homogeneous isotropic hollow cylider with a variable modulus of elasticity and thermal conductivity based on the Lord and Shulman theory. The problem has been solved numerically using the finite element method. Numerical results for the displacement, the temperature, the radial stress, and the hoop stress distributions are illustrated graphically. Comparisons are made between the results predicted by the coupled theory and by the theory of generalized thermoelasticity with one relaxation time in the cases of temperature dependent and independent modulus of elasticity.

关键词： generalized thermoelsticity thermal shock temperature dependent elastic moduli finiteelement method

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Prevalence and associations of non-retinopathy ocular conditions among older Australians with self-reported diabetes:The National Eye Health Survey

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International Journal of Ophthalmology(English edition) 2020年第10期13卷 1642-1651页

作者： Joshua Foreman Stuart Keel Myra b McGuinness Jonathan G Crowston Hugh R Taylor mohamed Dirani Centre for Eye Research Australia the Royal Victorian Eye&Ear HospitalVictoria 3002MelbourneAustralia Ophthalmology Department of Surgerythe University of MelbourneVictoria 3010MelbourneAustralia Indigenous Eye Health Unit Melbourne School of Population and Global Healththe University of MelbourneVictoria 3010MelbourneAustralia Singapore Eye Research Institute Singapore National Eye Centre168751Singapore

AIM:To determine the prevalence and associations of non-retinopathy ocular conditions among older Australian adults with ***:Multistage random-cluster sampling was used to select 3098 non-indigenous Australians aged 50 y or older(46.4%male)and 1738 indigenous Australians aged 40 y or older(41.1%male)from all levels of geographic remoteness in *** underwent a standardised questionnaire to ascertain diabetes history,and a clinical examination to identify eye *** determined the prevalence of uncorrected refractive error,visually significant cataract,cataract surgery,age-related macular degeneration,glaucoma,ocular hypertension,retinal vein occlusion and epiretinal membrane among those with and without self-reported ***:Participants with self-reported diabetes had a higher prevalence of cataract surgery than those without diabetes(28.8%vs 16.9%,OR 1.78,95%CI:1.35-2.34 among non-indigenous Australians,and 11.3%vs 5.2%,OR 1.62,95%CI:1.22-2.14 among indigenous Australians).Diabetic retinopathy(DR)increased the odds of cataract surgery among self-reported diabetic indigenous and nonindigenous Australians(OR 1.89,P=0.004 and OR 2.33,Pbetes for≥20 y and having vision-threatening DR increased the odds of cataract surgery among indigenous Australians with diabetes(OR 3.73,P=0.001 and 7.58,Pbetes epidemic,interventions to reduce the impact of diabetes-related blindness should include increased cataract surgery services.

关键词： retinopathy diabetes prevalence public health national survey cataract

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The effect of rotation on plane waves in generalized thermo-microstretch elastic solid with one relaxation time for a mode-I crack problem

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Chinese Physics b 2011年第7期20卷 266-278页

作者： Kh.Lotfy mohamed I.A.Othman Department of Mathematics Faculty of ScienceZagazig UniversityP.O.Box 44519ZagazigEgypt Department of Mathematics Faculty of SciencealmithnabQassim UniversityP.O.Box 6666AlmithnabKingdom of Saudi Arabia

The present paper is aimed at studying the effect of rotation on the general model of the equations of the generalized thermo-microstretch for a homogeneous isotropic elastic half-space solid, whose surface is subjected to a Mode-I crack problem. The problem is studied in the context of the generalized thermoelasticity Lord Shulman＇s （L-S） theory with one relaxation time, as well as with the classical dynamical coupled theory （CD）. The normal mode analysis is used to obtain the exact expressions for the displacement components, the force stresses, the temperature, the couple stresses and the microstress distribution. The variations of the considered variables through the horizontal distance are illustrated graphically. Comparisons of the results are made between the two theories with and without the rotation and the microstretch constants.

关键词： Lord-Shulman's theory thermoelasticity microrotation microstretch

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Role of visfatin in obesity-induced insulin resistance

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World Journal of Clinical Cases 2022年第30期10卷 10840-10851页

作者： Mona mohamed Ibrahim Abdalla Physiology Department Human Biology DivisionSchool of MedicineInternational Medical UniversityKuala Lumpur 57000Bukit JalilMalaysia

The growing worldwide burden of insulin resistance(IR) emphasizes the importance of early identification for improved ***,particularly visceral obesity,has been a key contributing factor in the development of *** obesity-associated chronic inflammatory state contributes to the development of obesity-related comorbidities,including ***,which are released by adipose tissue,have been investigated as possible indicators of *** was one of the adipocytokines that attracted attention due to its insulinmimetic *** is released from a variety of sources,including visceral fat and macrophages,and it influences glucose metabolism and increases *** relationship between visfatin and IR in obesity is *** a result,the purpose of this review was to better understand the role of visfatin in glucose homeostasis and to review the literature on the association between visfatin levels and IR,cardiovascular diseases,and renal diseases in obesity.

关键词： Homeostatic model assessment for insulin resistance Insulin resistance Obesity Visfatin pre-b cell colony enhancing factor Nicotinamide phosphoribosyl-transferase enzyme Diabetes Adipocytokines

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