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Review and insight on the behavioral aspects of cybersecurity

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Cybersecurity 2018年第1期1卷 749-766页

作者： Rachid ait Maalem lahcen Bruce Caulkins Ram Mohapatra Manish Kumar University of Central Florida Mathematics DepartmentOrlandoFL 32816USA Institute for Simulation and Training 3100 Technology PkwyOrlandoFL 32826USA Birla Institute of Technology and Sciences-Pilani Hyderabad CampusHyderabad 500078TelanganaIndia

Stories of cyber attacks are becoming a routine in which cyber attackers show new levels of intention by sophisticated attacks on ***,cybercriminals have figured out profitable business models and they take advantage of the online anonymity.A serious situation that needs to improve for networks’***,a paradigm shift is essential to the effectiveness of current techniques and *** the majority of cyber incidents are human enabled,this shift requires expanding research to underexplored areas such as behavioral aspects of *** is more vital to focus on social and behavioral issues to improve the current *** paper is an effort to provide a review of relevant theories and principles,and gives insights including an interdisciplinary framework that combines behavioral cybersecurity,human factors,and modeling and simulation.

关键词： Cybersecurity Behavioral aspects Human factors Crime theories

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Discrete Pseudo Almost Periodic Solutions for Some Difference Equations

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Advances in Pure Mathematics 2011年第4期1卷 118-127页

作者： Elhadi ait Dads Khalil Ezzinbi lahcen Lhachimi University Cadi Ayyad Faculty of Sciences Semlalia Department of Mathematics Marrakesh Morocco

In this work, we study the existence and uniqueness of pseudo almost periodic solutions for some difference equations. Firstly, we investigate the spectrum of the shift operator on the space of pseudo almost periodic sequences to show the main results of this work. For the illustration, some applications are provided for a second order differential equation with piecewise constant arguments.

关键词： Difference Equations Pseudo Almost Periodic Sequences Schift Operator

Exponential Dichotomy and Eberlein-Weak Almost Periodic Solutions

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Applied Mathematics 2012年第9期3卷 969-975页

作者： Elhadi ait Dads Samir Fatajou lahcen Lhachimi Départment de Mathématiques Faculté des Sciences Semlalia Université Cadi Ayyad Marrakesh Morocco Laboratoire L. M. C. Départment de Mathématiques et Informatique Faculté Polydisciplinaire-Safi (FPS)Université Cadi Ayyad Safi Morocco

We give sufficient conditions ensuring the existence and uniqueness of an Eberlein-weakly almost periodic solution to the following linear equation dx/dt(t) = A(t)x(t) + f(t) in a Banach space X, where (A(t)) t ∈□ is a family of infinitesimal generators such that for all t ∈□, A(t + T) = A(t) for some T > 0, for which the homogeneuous linear equation dx/dt(t) = A(t)x(t) is well posed, stable and has an exponential dichotomy, and f:□ →X is Eberlein-weakly amost periodic.

关键词： Bounded Solutions Almost Periodic and Eberlein Weak Almost Periodic Functions Exponential Dichotomy Linear Differential Equations

Numerical Study of the Free Convection of a Hybrid Nano-Fluid Filling a Three-Dimensional Cavity Exposed to a Horizontal Magnetic Field

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Frontiers in Heat and Mass Transfer 2024年第6期22卷 1865-1885页

作者： Mouna Benshab Said Bouchta M’barek Feddaoui Abdellatif Dayf jaouad Bouchta Abderrahman Nait Alla GEMS Laboratory Ibn Zohr UniversityENSAAgadir80000Morocco FSAAM Ibn Zohr UniversityAit Melloul86153Morocco

This paper presents a numerical study on natural convection and heat transfer using a hybrid nanofluid within a three-dimensional cavity under the influence of a magnetic *** primary objective of this research is to analyze how various magnetic field conditions affect the thermal performance of the hybrid nanofluid,particularly in terms of heat transfer and fluid *** objectives include evaluating the effects of the Rayleigh number,nanoparticle volume fraction,and Hartmann number on the dynamic and thermal fields,as well as the overall heat transfer *** transport equations were discretized using the finite volume method,and the SIMPLEC algorithm was employed to couple the velocity and pressure *** vertical walls of the cavity were subjected to different heating conditions,while the horizontal walls were assumed to be *** results,presented in the form of isotherms,streamlines,and Nusselt numbers,indicate that at low Hartmann numbers,heat transfer is enhanced due to better fluid circulation and more effective thermal dissipation,particularly with increasing Rayleigh numbers and nanoparticle volume ***,at higher Hartmann numbers,the magnetic field’s influence becomes dominant,significantly reducing heat transfer *** conclusion,the study shows that the hybrid nanofluid outperforms pure water and simple nanofluids in terms of thermal performance at low magnetic field ***,its effectiveness diminishes as the Hartmann number *** findings suggest the need for alternative strategies to improve heat transfer in industrial applications involving strong magnetic fields,such as in particle accelerators or nuclear magnetic resonance(NMR)devices.

关键词： Nanofluid hybrid free convection magnetic field finite volume