Mohamad Afendee Mohamed
National University of Malaysia
Distributed computingTopologyArtificial intelligenceNonlinear systemAttractorElliptic curve cryptographyScalar multiplicationLyapunov exponentWireless sensor networkEfficient energy useChaoticAddition chainApplied mathematicsComputer networkMathematicsComputer securityComputer scienceControl theoryBacksteppingConjugate gradient methodEquilibrium point
106Publications
7H-index
178Citations
Publications 97
Newest
#1Muqoyyanah (UPSI: Sultan Idris University of Education)H-Index: 4
#2Abu Bakar Suriani (UPSI: Sultan Idris University of Education)H-Index: 17
Last. Tetsuo Soga (Nagoya Institute of Technology)H-Index: 55
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In this study, different titanium dioxide (TiO2) nanostructures and phase were investigated as photoanode film for application in dye-sensitized solar cells. Rutile TiO2 nanorods (NRs)-nanotrees (NTs) and TiO2 NRs-microcauliflowers (MCFs) were synthesized via hydrothermal method for different time. The mixed phase of rutile-anatase film was fabricated by applying TiO2 nanoparticles paste on the synthesized TiO2 NRs-NTs via squeegee method. The counter electrode film was fabricated by spraying de...
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This paper announces a new three-dimensional multistable chaotic jerk system with two saddle-foci equilibrium points and gives a dynamic analysis of the properties of the jerk system such as Lyapunov exponents, phase portraits, equilibrium points and bifurcation analysis. Chaotic jerk systems have a nice triangular structure in their dynamics and they have many engineering applications. Our new jerk system is obtained by modifying the dynamics of the Genesio-Tesi chaotic jerk system (1992), and ...
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By modifying the Genesio-Tesi jerk dynamics (1992), a new jerk system is derived in this research study. The new jerk model is equipped with multistability and dissipative chaos with two saddle-foci equilibrium points. By invoking backstepping technique, new results for synchronizing chaos between the proposed jerk models are successfully yielded. MultiSim software is used to implement a circuit model for the new jerk dynamics. A good qualitative agreement has been shown between the MATLAB simul...
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#1Chimeleze Collins Uchenna (TNB: Universiti Tenaga Nasional)
#1Mohamad Afendee Mohamed (UniSZA: Universiti Sultan Zainal Abidin)H-Index: 7
Last. Lam Kwok Yan (NTU: Nanyang Technological University)H-Index: 1
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Internet of Things (IoT) is a concept that has been widely used to improve business efficiency and customer’s experience. It involves resource constrained devices connecting to each other with a capability of sending data, and some with receiving data at the same time. However, with the sophistication of technology has resulted in IoT applications facing with malware threat. Therefore, it becomes highly imperative to give an understanding of existing state-of-the-art techniques developed to addr...
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#2Naima Hadj SaidH-Index: 2
Last. Mustafa MamatH-Index: 15
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#1Aceng SambasH-Index: 14
Last. Mohamad Afendee Mohamed (UniSZA: Universiti Sultan Zainal Abidin)H-Index: 7
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Abstract In this chapter, we introduce a novel chaotic system with a closed curve consisting of four quarter circles of equilibrium points. The equilibrium curve is symmetric about the straight lines x = ± y . Thus, the new chaotic system exhibits hidden chaotic attractor. The complex behavior of the new chaotic system has been verified by using phase portraits and Lyapunov exponents. We also show that the new chaotic system has multistability and coexisting chaotic attractors for different init...
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#1Aceng SambasH-Index: 14
Last. Ahmad Taher Azar (Prince Sultan University)H-Index: 54
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Abstract Mechanical systems such as hyperjerk dynamical systems and their control constitute an attractive research trend in the literature. This chapter proposes a new 4-D chaotic hyperjerk system with a hyperbolic sinusoidal nonlinearity. In this chapter, we aim to control the chaotic behavior of the new hyperjerk mechanical chaotic system with multi-stability and coexisting attractors. We discuss the qualitative behavior of the new hyperjerk system in detail. Backstepping control is applied t...
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#1Aceng SambasH-Index: 14
Last. Ahmad Taher Azar (Prince Sultan University)H-Index: 54
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Abstract Jerk systems are important classes of 3-D mechanical systems. The analysis and their control of jerk dynamical systems have good applications in engineering. This chapter proposes a new 3-D chaotic jerk system with two quadratic nonlinear terms. We show that the jerk system has a unique rest point at the origin, which is an unstable saddle-focus rest point. We also show that the new jerk system shows multi-stability with coexisting attractors. In this chapter, we aim to control the chao...
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#1Yahia Alemami (UniSZA: Universiti Sultan Zainal Abidin)H-Index: 1
#2Mohamad Afendee Mohamed (UniSZA: Universiti Sultan Zainal Abidin)H-Index: 7
Last. Mustafa Mamat (UniSZA: Universiti Sultan Zainal Abidin)H-Index: 15
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There are various ways of social communication including writing (WhatsApp, Messenger, Facebook, Twitter, Skype, etc), calling (mobile phone) and voice recording (record your voice and then send it to the other party), but there are ways to eavesdropping the calls and voice messages, One way to solve this problem is via cryptographic approach. Chaos cryptography build on top of nonlinear dynamics chaotic system has gained some footstep in data security. It provides an alternative to conventional...
2 CitationsSource
#1KaiLun Eng (UPM: Universiti Putra Malaysia)H-Index: 1
#2Abdullah Muhammed (UPM: Universiti Putra Malaysia)H-Index: 5
Last. Sazlinah Hasan (UPM: Universiti Putra Malaysia)H-Index: 2
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Abstract To achieve the ultimate success of global collaborative resource sharing in Grid computing, an effective and efficient Grid resource management system is necessary and it is only possible if its core component, the scheduler, can perform scheduling in an efficient manner. Scheduling tasks to resources in Grid computing is a challenging task and known as a NP hard problem. In this paper, we propose a novel hybrid heuristic-based algorithm, which synergised the excellent diversification c...
2 CitationsSource