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Ibrahim Mahariq
College of Engineering and Technology, American University of the Middle East, Kuwait

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Journal article
Published: 03 August 2021 in Alexandria Engineering Journal
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This manuscript is devoted to consider population dynamical model of non-integer order to investigate the recent pandemic Covid-19 named as severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) disease. We investigate the proposed model corresponding to different values of largely effected system parameter of immigration for both susceptible and infected populations. The results for qualitative analysis are established with the help of fixed-point theory and non-linear functional analysis. Moreover, semi-analytical results, related to series solution for the considered system are investigated on applying the transform due to Laplace with Adomian polynomial and decomposition techniques. We have also applied the non-standard finite difference scheme (NSFD) for numerical solution. Finally, both the analysis are supported by graphical results at various fractional order. Both the results are comparable with each other and converging quickly at low order. The whole spectrum and the dynamical behavior for each compartment of the proposed model lying between 0 and 1 are simulated via Matlab.

ACS Style

Muhammad Arfan; Ibrahim Mahariq; Kamal Shah; Thabet Abdeljawad; Ghaylen Laouini; Pshtiwan Othman Mohammed. Numerical computations and theoretical investigations of a dynamical system with fractional order derivative. Alexandria Engineering Journal 2021, 1 .

AMA Style

Muhammad Arfan, Ibrahim Mahariq, Kamal Shah, Thabet Abdeljawad, Ghaylen Laouini, Pshtiwan Othman Mohammed. Numerical computations and theoretical investigations of a dynamical system with fractional order derivative. Alexandria Engineering Journal. 2021; ():1.

Chicago/Turabian Style

Muhammad Arfan; Ibrahim Mahariq; Kamal Shah; Thabet Abdeljawad; Ghaylen Laouini; Pshtiwan Othman Mohammed. 2021. "Numerical computations and theoretical investigations of a dynamical system with fractional order derivative." Alexandria Engineering Journal , no. : 1.

Journal article
Published: 13 May 2021 in Results in Physics
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This current work studies a new mathematical model for SARS-CoV-2. We show how immigration, protection, death rate, exposure, cure rate and interaction of infected people with healthy people affect the population. Our model is SIR model, which has three classes including susceptible, infected and recovered respectively. Here, we find the basic reproduction number and local stability through jacobean matrix. Lyapunvo function theory is used to calculate the global stability for the problem under investigation. Also a nonstandard finite difference sachem (NSFDS) is used to simulate the results.

ACS Style

Zhao-Wei Tong; Yu-Pei Lv; Rahim Ud Din; Ibrahim Mahariq; Gul Rahmat. Global transmission dynamic of SIR model in the time of SARS-CoV-2. Results in Physics 2021, 25, 104253 -104253.

AMA Style

Zhao-Wei Tong, Yu-Pei Lv, Rahim Ud Din, Ibrahim Mahariq, Gul Rahmat. Global transmission dynamic of SIR model in the time of SARS-CoV-2. Results in Physics. 2021; 25 ():104253-104253.

Chicago/Turabian Style

Zhao-Wei Tong; Yu-Pei Lv; Rahim Ud Din; Ibrahim Mahariq; Gul Rahmat. 2021. "Global transmission dynamic of SIR model in the time of SARS-CoV-2." Results in Physics 25, no. : 104253-104253.

Special issue paper
Published: 02 May 2021 in Mathematical Methods in the Applied Sciences
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A qualitative analysis for a nonlinear system of fractional pantograph evolution differential equations (FPEDEs) has been established. Conditions about the solution of the underlying equations have been established in the direction of the existence and uniqueness of the solution. Using results of fixed‐point theorems of Krasnoselskii iterations in Banach spaces, we develop the required results. This research work is enriched by establishing the results related to Ulam–Hyers (UH) stability of the problem under consideration via the tools of nonlinear analysis. To validate the reliability of the obtained results, some pertinent examples are given in the manuscript.

ACS Style

Israr Ahmad; Hussam Alrabaiah; Kamal Shah; Juan J. Nieto; Ibrahim Mahariq; Ghaus Ur Rahman. On coupled nonlinear evolution system of fractional order with a proportional delay. Mathematical Methods in the Applied Sciences 2021, 1 .

AMA Style

Israr Ahmad, Hussam Alrabaiah, Kamal Shah, Juan J. Nieto, Ibrahim Mahariq, Ghaus Ur Rahman. On coupled nonlinear evolution system of fractional order with a proportional delay. Mathematical Methods in the Applied Sciences. 2021; ():1.

Chicago/Turabian Style

Israr Ahmad; Hussam Alrabaiah; Kamal Shah; Juan J. Nieto; Ibrahim Mahariq; Ghaus Ur Rahman. 2021. "On coupled nonlinear evolution system of fractional order with a proportional delay." Mathematical Methods in the Applied Sciences , no. : 1.

Journal article
Published: 18 March 2021 in Results in Physics
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In this article, we find an approximate analytical solution to the fractional order Swift–Hohenberg (FSH) equation by using a novel iterative method which is named Laplace Adomian decomposition method (LADM). By utilizing the proposed method, we study a nonlinear FSH equation involving and excluding dispersive terms. We compare the results through plots for different fractional order. After that, we study the aforesaid problem under Caputo–Fabrizio fractional order derivative (CFFOD). For the purpose of demonstrating our results, some examples are provided in the paper.

ACS Style

Israr Ahmad; Thabet Abdeljawad; Ibrahim Mahariq; Kamal Shah; Nabil Mlaiki; Ghaus Ur Rahman. Iterative analysis of non-linear Swift–Hohenberg equations under nonsingular fractional order derivative. Results in Physics 2021, 23, 104080 .

AMA Style

Israr Ahmad, Thabet Abdeljawad, Ibrahim Mahariq, Kamal Shah, Nabil Mlaiki, Ghaus Ur Rahman. Iterative analysis of non-linear Swift–Hohenberg equations under nonsingular fractional order derivative. Results in Physics. 2021; 23 ():104080.

Chicago/Turabian Style

Israr Ahmad; Thabet Abdeljawad; Ibrahim Mahariq; Kamal Shah; Nabil Mlaiki; Ghaus Ur Rahman. 2021. "Iterative analysis of non-linear Swift–Hohenberg equations under nonsingular fractional order derivative." Results in Physics 23, no. : 104080.

Journal article
Published: 19 January 2021 in Advances in Difference Equations
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In this paper, we study an initial value problem for a class of impulsive implicit-type fractional differential equations (FDEs) with proportional delay terms. Schaefer’s fixed point theorem and Banach’s contraction principle are the key tools in obtaining the required results. We apply our results to a numerical problem for demonstration purpose.

ACS Style

Arshad Ali; Ibrahim Mahariq; Kamal Shah; Thabet Abdeljawad; Bahaa Al-Sheikh. Stability analysis of initial value problem of pantograph-type implicit fractional differential equations with impulsive conditions. Advances in Difference Equations 2021, 2021, 1 -17.

AMA Style

Arshad Ali, Ibrahim Mahariq, Kamal Shah, Thabet Abdeljawad, Bahaa Al-Sheikh. Stability analysis of initial value problem of pantograph-type implicit fractional differential equations with impulsive conditions. Advances in Difference Equations. 2021; 2021 (1):1-17.

Chicago/Turabian Style

Arshad Ali; Ibrahim Mahariq; Kamal Shah; Thabet Abdeljawad; Bahaa Al-Sheikh. 2021. "Stability analysis of initial value problem of pantograph-type implicit fractional differential equations with impulsive conditions." Advances in Difference Equations 2021, no. 1: 1-17.

Journal article
Published: 01 January 2021 in Computers, Materials & Continua
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ACS Style

Samer Alabed; Ibrahim Mahariq; Mohammad Salman; Mustafa Kuzuoglu. A Novel Beamforming Emulating Photonic Nanojets for Wireless Relay Networks. Computers, Materials & Continua 2021, 69, 575 -588.

AMA Style

Samer Alabed, Ibrahim Mahariq, Mohammad Salman, Mustafa Kuzuoglu. A Novel Beamforming Emulating Photonic Nanojets for Wireless Relay Networks. Computers, Materials & Continua. 2021; 69 (1):575-588.

Chicago/Turabian Style

Samer Alabed; Ibrahim Mahariq; Mohammad Salman; Mustafa Kuzuoglu. 2021. "A Novel Beamforming Emulating Photonic Nanojets for Wireless Relay Networks." Computers, Materials & Continua 69, no. 1: 575-588.

Research article
Published: 29 December 2020 in Numerical Methods for Partial Differential Equations
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In this manuscript, we investigate the existence and the semi‐analytical solutions of the fractional‐order vector‐born disease model using the Caputo–Fabrizio fractional derivative. In this study, we have developed existence results about the solution for the problem under consideration using the results of fixed‐point theory. On the other hand, the semi‐analytical results were obtained via Laplace Adomain decomposition method. The results established using the proposed techniques are in the form of an infinite series which converges rapidly to the exact solution. Furthermore, the obtained results are compared with the result of integer‐order derivatives. The dynamics of the solution is interpreted graphically.

ACS Style

Fazal Haq; Ibrahim Mahariq; Thabet Abdeljawad; Nabil Maliki. A new approach for the qualitative study of vector born disease using Caputo–Fabrizio derivative. Numerical Methods for Partial Differential Equations 2020, 37, 1809 -1818.

AMA Style

Fazal Haq, Ibrahim Mahariq, Thabet Abdeljawad, Nabil Maliki. A new approach for the qualitative study of vector born disease using Caputo–Fabrizio derivative. Numerical Methods for Partial Differential Equations. 2020; 37 (2):1809-1818.

Chicago/Turabian Style

Fazal Haq; Ibrahim Mahariq; Thabet Abdeljawad; Nabil Maliki. 2020. "A new approach for the qualitative study of vector born disease using Caputo–Fabrizio derivative." Numerical Methods for Partial Differential Equations 37, no. 2: 1809-1818.

Journal article
Published: 12 November 2020 in Results in Physics
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This work is the consideration of a fractal fractional mathematical model on the transmission and control of corona virus (COVID-19), in which the total population of an infected area is divided into susceptible, infected and recovered classes. We consider a fractal-fractional order SIR type model for investigation of Covid-19. To realize the transmission and control of corona virus in a much better way, first we study the stability of the corresponding deterministic model using next generation matrix along with basic reproduction number. After this, we study the qualitative analysis using “fixed point theory” approach. Next, we use fractional Adams-Bashforth approach for investigation of approximate solution to the considered model. At the end numerical simulation are been given by matlab to provide the validity of mathematical system having the arbitrary order and fractal dimension.

ACS Style

Kamal Shah; Muhammad Arfan; Ibrahim Mahariq; Ali Ahmadian; Soheil Salahshour; Massimiliano Ferrara. Fractal-Fractional Mathematical Model Addressing the Situation of Corona Virus in Pakistan. Results in Physics 2020, 19, 103560 .

AMA Style

Kamal Shah, Muhammad Arfan, Ibrahim Mahariq, Ali Ahmadian, Soheil Salahshour, Massimiliano Ferrara. Fractal-Fractional Mathematical Model Addressing the Situation of Corona Virus in Pakistan. Results in Physics. 2020; 19 ():103560.

Chicago/Turabian Style

Kamal Shah; Muhammad Arfan; Ibrahim Mahariq; Ali Ahmadian; Soheil Salahshour; Massimiliano Ferrara. 2020. "Fractal-Fractional Mathematical Model Addressing the Situation of Corona Virus in Pakistan." Results in Physics 19, no. : 103560.

Journal article
Published: 15 September 2020 in Applied Sciences
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This work investigated the capability of multilayer perceptron artificial neural network (MLP–ANN), stochastic gradient boosting (SGB) tree, radial basis function artificial neural network (RBF–ANN), and adaptive neuro-fuzzy inference system (ANFIS) models to determine the heat capacity (Cp) of ionanofluids in terms of the nanoparticle concentration (x) and the critical temperature (Tc), operational temperature (T), acentric factor (ω), and molecular weight (Mw) of pure ionic liquids (ILs). To this end, a comprehensive database of literature reviews was searched. The results of the SGB model were more satisfactory than the other models. Furthermore, an analysis was done to determine the outlying bad data points. It showed that most of the experimental data points were located in a reliable zone for the development of the model. The mean squared error and R2 were 0.00249 and 0.987, 0.0132 and 0.9434, 0.0320 and 0.8754, and 0.0201 and 0.9204 for the SGB, MLP–ANN, ANFIS, and RBF–ANN, respectively. According to this study, the ability of SGB for estimating the Cp of ionanofluids was shown to be greater than other models. By eliminating the need for conducting costly and time-consuming experiments, the SGB strategy showed its superiority compared with experimental measurements. Furthermore, the SGB displayed great generalizability because of the stochastic element. Therefore, it can be highly applicable to unseen conditions. Furthermore, it can help chemical engineers and chemists by providing a model with low parameters that yields satisfactory results for estimating the Cp of ionanofluids. Additionally, the sensitivity analysis showed that Cp is directly related to T, Mw, and Tc, and has an inverse relation with ω and x. Mw and Tc had the highest impact and ω had the lowest impact on Cp.

ACS Style

Reza Daneshfar; Amin Bemani; Masoud Hadipoor; Mohsen Sharifpur; Hafiz Ali; Ibrahim Mahariq; Thabet Abdeljawad. Estimating the Heat Capacity of Non-Newtonian Ionanofluid Systems Using ANN, ANFIS, and SGB Tree Algorithms. Applied Sciences 2020, 10, 6432 .

AMA Style

Reza Daneshfar, Amin Bemani, Masoud Hadipoor, Mohsen Sharifpur, Hafiz Ali, Ibrahim Mahariq, Thabet Abdeljawad. Estimating the Heat Capacity of Non-Newtonian Ionanofluid Systems Using ANN, ANFIS, and SGB Tree Algorithms. Applied Sciences. 2020; 10 (18):6432.

Chicago/Turabian Style

Reza Daneshfar; Amin Bemani; Masoud Hadipoor; Mohsen Sharifpur; Hafiz Ali; Ibrahim Mahariq; Thabet Abdeljawad. 2020. "Estimating the Heat Capacity of Non-Newtonian Ionanofluid Systems Using ANN, ANFIS, and SGB Tree Algorithms." Applied Sciences 10, no. 18: 6432.

Preprint
Published: 07 September 2020
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A micromechanical model is implemented to indicate the progressive fatigue problem of a laminated composite with a central circular hole under fatigue loading based on a finite element model. The mechanical properties of the composite lamina are represented based on the characteristics of the fiber and the matrix through a micromechanics model. An appropriate algorithm is then adopted to simulate fatigue damage development in the composite lamina. According to this algorithm, the stress field of the composite subjected to fatigue load is initially obtained using the finite element method. Finally, the predicted results of the stresses in the constituents i.e. fiber and matrix are determined according to the micromechanical bridging model. Finally applying proper damage driving relations leads to damage degree in each element. The proposed model is proven to be successful in the observation of the fatigue behavior with stiffness degradation in each element of the composite in each cycle. Results are reported and validated using those micromechanical models and experimental data available in the literature.

ACS Style

Mohammad Ghalandari; Hossein Toozandehjani; Ibrahim Mahariq. A Finite Element based Micromechanical Model to Simulate Fatigue Damage Development in Open-Hole Laminated Composites. 2020, 1 .

AMA Style

Mohammad Ghalandari, Hossein Toozandehjani, Ibrahim Mahariq. A Finite Element based Micromechanical Model to Simulate Fatigue Damage Development in Open-Hole Laminated Composites. . 2020; ():1.

Chicago/Turabian Style

Mohammad Ghalandari; Hossein Toozandehjani; Ibrahim Mahariq. 2020. "A Finite Element based Micromechanical Model to Simulate Fatigue Damage Development in Open-Hole Laminated Composites." , no. : 1.

Preprint
Published: 06 September 2020
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In this study, the elastic properties of composite materials are investigated, considering the effects of separation of fiber-matrix joint boundary and matrix failure. In this method, by assuming periodic microstructure and using a linear approximation of the displacement field by applying continuity and equilibrium conditions, the composite fiber composite relation is determined. The effect of separation is assumed by introducing tangential and normal scalar parameters in the equations by assuming the displacement field jump at the common boundary. In order to express the effect of matrix micro-cracks, the fracture mechanics framework of continuous environments was used and the micro-cracks parallel to the fibers, perpendicular to the fibers and in the thickness direction with scalar parameters were expressed. At the end of the effect of these parameters the results are presented in graphs. The results show that the presence of defective joint at the joint boundary and the matrix micro-components reduce the hardness of the composite and thus it’s bearing load, which is more significant at the defective joint state.

ACS Style

Mohammad Ghalandari; Hossein Toozandehjani; Ibrahim Mahariq; Thabet Abeljawad. Determination of Composite Properties in the Presence of Fiber Deboning and Matrix Damage by Using the Method of Cell. 2020, 1 .

AMA Style

Mohammad Ghalandari, Hossein Toozandehjani, Ibrahim Mahariq, Thabet Abeljawad. Determination of Composite Properties in the Presence of Fiber Deboning and Matrix Damage by Using the Method of Cell. . 2020; ():1.

Chicago/Turabian Style

Mohammad Ghalandari; Hossein Toozandehjani; Ibrahim Mahariq; Thabet Abeljawad. 2020. "Determination of Composite Properties in the Presence of Fiber Deboning and Matrix Damage by Using the Method of Cell." , no. : 1.

Journal article
Published: 04 September 2020 in Photonics
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A novel, programmable, mode-locked fiber laser design is presented and numerically demonstrated. The laser programmability is enabled by an intracavity optical phase-only pulse shaper, which utilizes the same linearly chirped fiber Bragg grating (LC-FBG) from its two opposite ends to perform real-time optical Fourier transformation. A binary bit-pattern generator (BPG) operating at 20-Gb/s and producing a periodic sequence of 32 bits every 1.6 ns, is subsequently used to drive an optical phase modulator inside the laser cavity. Simulation results indicate stable programmable intensity profiles for each optimized user defined 32 code words. The laser operated in the self-similar mode-locking regime, enabling wave-breaking free operation. The programmable 32 bit code word targeting a specific intensity profile was determined using 100 generations of the genetic algorithm. The control of ultrashort pulse intensity profiles on the picosecond and femtosecond time scales is difficult. The process of stretching and compressing the pulse in the time domain allows for a slower BPG to impose a predefined phase modulation prior to pulse compression. This results in control over the fine features of the intensity profile of the compressed pulse on a picosecond or femtosecond time scale inside the laser cavity. The stability of the proposed scheme depends on the consistency and accuracy of the BPG rise and fall times in practice.

ACS Style

Abdullah Karar; Raymond Ghandour; Ibrahim Mahariq; Shadi Alboon; Issam Maaz; Bilel Neji; Julien Barakat. A Programmable Mode-Locked Fiber Laser Using Phase-Only Pulse Shaping and the Genetic Algorithm. Photonics 2020, 7, 69 .

AMA Style

Abdullah Karar, Raymond Ghandour, Ibrahim Mahariq, Shadi Alboon, Issam Maaz, Bilel Neji, Julien Barakat. A Programmable Mode-Locked Fiber Laser Using Phase-Only Pulse Shaping and the Genetic Algorithm. Photonics. 2020; 7 (3):69.

Chicago/Turabian Style

Abdullah Karar; Raymond Ghandour; Ibrahim Mahariq; Shadi Alboon; Issam Maaz; Bilel Neji; Julien Barakat. 2020. "A Programmable Mode-Locked Fiber Laser Using Phase-Only Pulse Shaping and the Genetic Algorithm." Photonics 7, no. 3: 69.

Journal article
Published: 21 July 2020 in Photonics
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We numerically investigate the generation of photonic nanojets (PNJs) and the excitation of whispering gallery modes (WGMs) supported by both smooth and corrugated dielectric micro-cylinders under point-source illumination. Results show that the location of the point-source defines the location and properties of PNJs, whereas stability of WGMs exists in smooth micro-cylinders but vanishes in corrugated ones. It is shown that the location of the point-source acts as an additional degree of freedom for controlling the characteristics of the generated PNJs for both smooth and corrugated dielectric micro-cylinders. Furthermore, the influence of the point-source location on the stability of the excited WGMs was diminished for the smooth micro-cylinders, while being fully pronounced for their corrugated counterparts.

ACS Style

Ibrahim Mahariq; Thabet Abdeljawad; Abdullah Karar; Shadi Alboon; Hamza Kurt; Alexey Maslov. Photonic Nanojets and Whispering Gallery Modes in Smooth and Corrugated Micro-Cylinders under Point-Source Illumination. Photonics 2020, 7, 50 .

AMA Style

Ibrahim Mahariq, Thabet Abdeljawad, Abdullah Karar, Shadi Alboon, Hamza Kurt, Alexey Maslov. Photonic Nanojets and Whispering Gallery Modes in Smooth and Corrugated Micro-Cylinders under Point-Source Illumination. Photonics. 2020; 7 (3):50.

Chicago/Turabian Style

Ibrahim Mahariq; Thabet Abdeljawad; Abdullah Karar; Shadi Alboon; Hamza Kurt; Alexey Maslov. 2020. "Photonic Nanojets and Whispering Gallery Modes in Smooth and Corrugated Micro-Cylinders under Point-Source Illumination." Photonics 7, no. 3: 50.

Preprint content
Published: 30 May 2020
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BACKGROUND COVID-19 has not only psychological but also economic and social effects and social media increased the negative effects by disseminating COVID-19 infodemic. OBJECTIVE This study aims to investigate impact of the global infection rate on social media posting during the COVID-19 pandemic. METHODS The study analyzed 179+ million tweets collected between March 22nd and April 13th, 2020, and global COVID-19 infection rate by using evolutionary clustering analysis. RESULTS The results indicated six clusters constructed for each term type, including three-level n-grams (unigrams, bigrams, and trigrams). The frequent occurrences of unigrams (“COVID-19”, “virus”, “government”, “people”, etc.), bigrams (“COVID-19”, “COVID-19 cases”, “times share”, etc.), and trigrams (“COVID 19 crisis”, “things help stop”, “trying times share”). The results demonstrated that the unigram trends on Twitter were up to about two times and 54 times more common than bigram and trigram terms, respectively. Unigrams like “home” or “need” also became important as these terms reflected the main concerns of people during this period. Taken together, the present findings confirm that many tweets were used to broadcast people’s prevalent topics of interest during the COVID-19 pandemic. Further, the results indicated that the number of COVID-19 infections has a significant impact on all clusters, being strong on 86% of clusters and moderate on 16% of clusters. The downward slope in the global infection rate reflected the start of the trending of “social distancing” and “stay at home.” CONCLUSIONS These findings suggested that infection rates have a significant impact on social media postings during the COVID-19 pandemic.

ACS Style

Ibrahim Arpaci; Thabet Abdeljawad; Shadi Al Shehabi; Ibrahim Mahariq; Ahmet E. Topcu. An evolutionary clustering analysis of the social media content and global infection rate during the COVID-19 pandemic (Preprint). 2020, 1 .

AMA Style

Ibrahim Arpaci, Thabet Abdeljawad, Shadi Al Shehabi, Ibrahim Mahariq, Ahmet E. Topcu. An evolutionary clustering analysis of the social media content and global infection rate during the COVID-19 pandemic (Preprint). . 2020; ():1.

Chicago/Turabian Style

Ibrahim Arpaci; Thabet Abdeljawad; Shadi Al Shehabi; Ibrahim Mahariq; Ahmet E. Topcu. 2020. "An evolutionary clustering analysis of the social media content and global infection rate during the COVID-19 pandemic (Preprint)." , no. : 1.

Journal article
Published: 28 May 2020 in Journal of Medical Internet Research
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Background Among a variety of dynamics that may have effects on internet-related behaviors, cultural orientation is particularly important. Previous studies suggest that individualism is a strong determinant of certain behaviors. In addition, findings suggest that vertical individualism may lead to the development of more tolerance for addiction and aggression on the internet. Objective This study aimed to investigate whether vertical individualism has significant positive effects on cyberbullying and internet addiction and whether horizontal individualism has significant negative effects on cyberbullying and internet addiction. A theoretical model was specified to test the relationships among vertical versus horizontal individualism, cyberbullying, and internet addiction. Methods A total of 665 college students were selected using a convenience sampling method and willingly participated in the study. Participants’ ages ranged from 17 to 19 years (mean 17.94 years, SD 1.12 years). Of the group, 462 were women (462/665, 69.5%), and 203 were men (203/665, 30.5%). Study majors represented were mathematics (113/665, 17%), sciences (102/665, 15.3%), instructional technology (99/665, 14.9%), psychology (98/665, 14.7%), and others (253/665, 38.1%). Self-report instruments were used to measure vertical/horizontal individualism, cyberbullying, and internet addiction. Results Results show a significant positive effect of vertical individualism (effect size 0.10) and significant negative effect of horizontal individualism (effect size –0.12) on cyberbullying. In addition, the direct effect of vertical individualism on internet addiction was significant (effect size 0.28), but the direct effect of horizontal individualism was not (effect size –0.05). Internet addiction had a significant direct effect on cyberbullying (effect size 0.39) as well as an intervening effect on the relationship between vertical individualism and cyberbullying. Results also indicate significant gender differences in cultural patterns and internet addiction. Conclusions The findings suggest that horizontal and vertical individualism have significant effects on internet addiction. The findings also suggest that vertical individualists are more vulnerable to internet addiction. Further, the findings indicate a significant relationship between internet addiction and cyberbullying.

ACS Style

Ibrahim Arpaci; Thabet Abdeljawad; Mustafa Baloğlu; Şahin Kesici; Ibrahim Mahariq. Mediating Effect of Internet Addiction on the Relationship Between Individualism and Cyberbullying: Cross-Sectional Questionnaire Study. Journal of Medical Internet Research 2020, 22, e16210 .

AMA Style

Ibrahim Arpaci, Thabet Abdeljawad, Mustafa Baloğlu, Şahin Kesici, Ibrahim Mahariq. Mediating Effect of Internet Addiction on the Relationship Between Individualism and Cyberbullying: Cross-Sectional Questionnaire Study. Journal of Medical Internet Research. 2020; 22 (5):e16210.

Chicago/Turabian Style

Ibrahim Arpaci; Thabet Abdeljawad; Mustafa Baloğlu; Şahin Kesici; Ibrahim Mahariq. 2020. "Mediating Effect of Internet Addiction on the Relationship Between Individualism and Cyberbullying: Cross-Sectional Questionnaire Study." Journal of Medical Internet Research 22, no. 5: e16210.

Research article
Published: 27 May 2020 in BioMed Research International
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In this article, a qualitative analysis of the mathematical model of novel corona virus named COVID-19 under nonsingular derivative of fractional order is considered. The concerned model is composed of two compartments, namely, healthy and infected. Under the new nonsingular derivative, we, first of all, establish some sufficient conditions for existence and uniqueness of solution to the model under consideration. Because of the dynamics of the phenomenon when described by a mathematical model, its existence must be guaranteed. Therefore, via using the classical fixed point theory, we establish the required results. Also, we present the results of stability of Ulam’s type by using the tools of nonlinear analysis. For the semianalytical results, we extend the usual Laplace transform coupled with Adomian decomposition method to obtain the approximate solutions for the corresponding compartments of the considered model. Finally, in order to support our study, graphical interpretations are provided to illustrate the results by using some numerical values for the corresponding parameters of the model.

ACS Style

Kamal Shah; Thabet Abdeljawad; Ibrahim Mahariq; Fahd Jarad. Qualitative Analysis of a Mathematical Model in the Time of COVID-19. BioMed Research International 2020, 2020, 1 -11.

AMA Style

Kamal Shah, Thabet Abdeljawad, Ibrahim Mahariq, Fahd Jarad. Qualitative Analysis of a Mathematical Model in the Time of COVID-19. BioMed Research International. 2020; 2020 ():1-11.

Chicago/Turabian Style

Kamal Shah; Thabet Abdeljawad; Ibrahim Mahariq; Fahd Jarad. 2020. "Qualitative Analysis of a Mathematical Model in the Time of COVID-19." BioMed Research International 2020, no. : 1-11.

Journal article
Published: 14 March 2020 in Alexandria Engineering Journal
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In this paper, a new approach is used to obtain the nonlinear mode for a flexible cantilever beam. The dependency of resonance of the beam on the exciting force amplitude is observed experimentally and theoretically. In this regard, the end response of a cantilever beam under the base excitation is measured for various force amplitudes. Then, by using the nonlinear normal modes, the reduced-order governing equation is obtained. The discrete model obtained according to identification of nonlinear terms can predict the frequency response of the beam and jump phenomenon properly. Comparison between experimental data and theoretical outputs show acceptable agreement.

ACS Style

Thabet Abdeljawad; Ibrahim Mahariq; Mobin Kavyanpoor; Mohammad Ghalandari; Narjes Nabipour. Identification of nonlinear normal modes for a highly flexible beam. Alexandria Engineering Journal 2020, 59, 2419 -2427.

AMA Style

Thabet Abdeljawad, Ibrahim Mahariq, Mobin Kavyanpoor, Mohammad Ghalandari, Narjes Nabipour. Identification of nonlinear normal modes for a highly flexible beam. Alexandria Engineering Journal. 2020; 59 (4):2419-2427.

Chicago/Turabian Style

Thabet Abdeljawad; Ibrahim Mahariq; Mobin Kavyanpoor; Mohammad Ghalandari; Narjes Nabipour. 2020. "Identification of nonlinear normal modes for a highly flexible beam." Alexandria Engineering Journal 59, no. 4: 2419-2427.

Journal article
Published: 28 January 2020 in Alexandria Engineering Journal
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Nonlinear identification of a narrow cantilever blade undergoing free vibration was studied. In the absence of forced excitation and because of general data deficiency of this system, the current identification methods cannot be applied with sufficient accuracy. A new identification approach was introduced in the present study based on nonlinear free vibration decay. Nonlinear free response of the presented system is determined by the coupling of generalized variation iteration and the modified differential transformation methods. The comparisons between the experiments and calculations is highlighted the good accuracy of the identified nonlinear model.

ACS Style

Ibrahim Mahariq; Mobin Kavyanpoor; Mohammad Ghalandari; Mohammad Alhuyi Nazari; Dieu Tien Bui. Identification of nonlinear model for rotary high aspect ratio flexible blade using free vibration response. Alexandria Engineering Journal 2020, 59, 2131 -2139.

AMA Style

Ibrahim Mahariq, Mobin Kavyanpoor, Mohammad Ghalandari, Mohammad Alhuyi Nazari, Dieu Tien Bui. Identification of nonlinear model for rotary high aspect ratio flexible blade using free vibration response. Alexandria Engineering Journal. 2020; 59 (4):2131-2139.

Chicago/Turabian Style

Ibrahim Mahariq; Mobin Kavyanpoor; Mohammad Ghalandari; Mohammad Alhuyi Nazari; Dieu Tien Bui. 2020. "Identification of nonlinear model for rotary high aspect ratio flexible blade using free vibration response." Alexandria Engineering Journal 59, no. 4: 2131-2139.

Journal article
Published: 09 January 2020 in International Journal of Renewable Energy Development
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The existence of magnetic field around high-voltage overhead transmission lines or low-voltage distribution lines is a known fact and well-studied in the literature. However, the interaction of this magnetic field either with transmission or distribution towers has not been investigated. Noteworthy it is to remember that this field is time-varying with a frequency of 50 Hz or 60 Hz depending on the country. In this paper, we studied for the first time the eddy currents in towers which are made of metals. As the geometrical structures of towers are extremely complex to model, we provide a simple approach based on principles of electromagnetism in order to verify the existence of power loss in the form of eddy currents. The frequency-domain finite difference method is adapted in the current study for simulating the proposed model. The importance of such a study is the addition of a new type of power loss to the power network due to the fact that some towers are made of relatively conductive materials.©2020. CBIORE-IJRED. All rights reserved

ACS Style

Ibrahim Mahariq; Svetlana Beryozkina; Huda Mohammed; Hamza Kurt. On the Eddy Current Losses in Metallic Towers. International Journal of Renewable Energy Development 2020, 9, 1 -6.

AMA Style

Ibrahim Mahariq, Svetlana Beryozkina, Huda Mohammed, Hamza Kurt. On the Eddy Current Losses in Metallic Towers. International Journal of Renewable Energy Development. 2020; 9 (1):1-6.

Chicago/Turabian Style

Ibrahim Mahariq; Svetlana Beryozkina; Huda Mohammed; Hamza Kurt. 2020. "On the Eddy Current Losses in Metallic Towers." International Journal of Renewable Energy Development 9, no. 1: 1-6.

Preprint content
Published: 11 September 2019
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BACKGROUND Among a variety of dynamics that may have effects on internet-related behaviors, cultural orientation is particularly important. Previous studies suggest that individualism is a strong determinant of certain behaviors. In addition, findings suggest that vertical individualism may lead to the development of more tolerance for addiction and aggression on the internet. OBJECTIVE This study aimed to investigate whether vertical individualism has significant positive effects on cyberbullying and internet addiction and whether horizontal individualism has significant negative effects on cyberbullying and internet addiction. A theoretical model was specified to test the relationships among vertical versus horizontal individualism, cyberbullying, and internet addiction. METHODS A total of 665 college students were selected using a convenience sampling method and willingly participated in the study. Participants’ ages ranged from 17 to 19 years (mean 17.94 years, SD 1.12 years). Of the group, 462 were women (462/665, 69.5%), and 203 were men (203/665, 30.5%). Study majors represented were mathematics (113/665, 17%), sciences (102/665, 15.3%), instructional technology (99/665, 14.9%), psychology (98/665, 14.7%), and others (253/665, 38.1%). Self-report instruments were used to measure vertical/horizontal individualism, cyberbullying, and internet addiction. RESULTS Results show a significant positive effect of vertical individualism (effect size 0.10) and significant negative effect of horizontal individualism (effect size –0.12) on cyberbullying. In addition, the direct effect of vertical individualism on internet addiction was significant (effect size 0.28), but the direct effect of horizontal individualism was not (effect size –0.05). Internet addiction had a significant direct effect on cyberbullying (effect size 0.39) as well as an intervening effect on the relationship between vertical individualism and cyberbullying. Results also indicate significant gender differences in cultural patterns and internet addiction. CONCLUSIONS The findings suggest that horizontal and vertical individualism have significant effects on internet addiction. The findings also suggest that vertical individualists are more vulnerable to internet addiction. Further, the findings indicate a significant relationship between internet addiction and cyberbullying.

ACS Style

Ibrahim Arpaci; Thabet Abdeljawad; Mustafa Baloğlu; Şahin Kesici; Ibrahim Mahariq. Mediating Effect of Internet Addiction on the Relationship Between Individualism and Cyberbullying: Cross-Sectional Questionnaire Study (Preprint). 2019, 1 .

AMA Style

Ibrahim Arpaci, Thabet Abdeljawad, Mustafa Baloğlu, Şahin Kesici, Ibrahim Mahariq. Mediating Effect of Internet Addiction on the Relationship Between Individualism and Cyberbullying: Cross-Sectional Questionnaire Study (Preprint). . 2019; ():1.

Chicago/Turabian Style

Ibrahim Arpaci; Thabet Abdeljawad; Mustafa Baloğlu; Şahin Kesici; Ibrahim Mahariq. 2019. "Mediating Effect of Internet Addiction on the Relationship Between Individualism and Cyberbullying: Cross-Sectional Questionnaire Study (Preprint)." , no. : 1.