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A New Multi Chaos-Based Compression Sensing Image Encryption

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Computers, Materials & Continua 2023年第7期76卷 437-453页

作者： Fadia Ali Khan jameel ahmed Suliman A.Alsuhibany Department of Electrical Engineering Riphah International UniversityIslamabad44000Pakistan Department of Computer Science College of ComputerQassim UniversityBuraydah51452Saudi Arabia

The advancements in technology have substantially grown the size of image *** image encryption algorithms have limited capabilities to deal with the emerging challenges in big data,including compression and noise *** image encryption method that is based on chaotic maps and orthogonal matrix is proposed in this *** proposed scheme is built on the intriguing characteristics of an orthogonal *** Schmidt disperses the values of pixels in a plaintext image by generating a random orthogonal matrix using logistic chaotic *** the diffusion process,a block-wise random permutation of the data is performed using *** proposed scheme provides sufficient security and resilience to JPEG compression and channel noise through a series of experiments and security *** enables Partial Encryption(PE)for faster processing as well as complete encryption for increased *** higher values of the number of pixels change rates and unified average change intensity confirm the security of the encryption *** contrast to other schemes,the proposed approach can perform full and partial encryption depending on security requirements.

关键词： Chaos compression image encryption

Fabrication and characterization of gold nano particles for DNA biosensor applications

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Chinese Chemical Letters 2016年第5期27卷 801-806页

作者： ahmed Mishaal mohammed Chemistry Department College of Science Anbar University Institutes of Nano Electronic Engineering University Malaysia Perlis

This research involves the preparation ofa biosensor using silicon oxide for biomedical applications, and its effective use for the detection of target DNA hybridization. An electrochemical DNA biosensor was successfully fabricated by using （3-aminopropyl） tri-ethoxysilane （APTES） as a linker molecule combined with gold nanoparticles （GNPs） on a thermally oxidized 5i02 thin film. The size of the GNPs was calculated by utilizing UV-vis data with an average calculated particle size within the range of 30 - 5 nm, and characterization by transmission electron microscopy （TEM） and atomic force microscopy （AFM）. The GNP-modified SiO2 thin films were electrically characterized through the measurement of capacitance, permittivity and conductivity using a low-cost dielectric analyzer. The capacitance, permittivity and conductivity profiles of the fabricated sensor clearly differentiated DNA immobilization and hybridization.

关键词： Gold nanoparticlesElectrochemical DNA hybridization Dielectric analyzer

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Joint optimization for secure ambient backscatter communication in NOMA-enabled IoT networks

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Digital Communications and Networks 2023年第1期9卷 264-269页

作者： Wali Ullah Khan Furqan jameel Asim Ihsan Omer Waqar Manzoor ahmed Interdisciplinary Centre for Security Reliability and Trust(SnT)/SigComUniversity of LuxembourgLuxembourg Department of Communications and Networking Aalto University02150EspooFinland Department of Communication and Information Engineering Shanghai Jiao Tong UniversityShanghai200240China Department of Engineering Thompson Rivers University(TRU)British Columbia(BC)Canada College of Computer Science and Technology Qingdao UniversityQingdao266071China

Non-Orthogonal Multiple Access(NOMA)has emerged as a novel air interface technology for massive connectivity in Sixth-Generation(6G)*** recent integration of NOMA in Backscatter Communication(BC)has triggered significant research interest due to its applications in low-powered Internet of Things(IoT)***,the link security aspect of these networks has not been well *** article provides a new optimization framework for improving the physical layer security of the NOMA ambient BC *** system model takes into account the simultaneous operation of NOMA IoT users and the Backscatter Node(BN)in the presence of multiple EavesDroppers(EDs).The EDs in the surrounding area can overhear the communication of Base Station(BS)and BN due to the wireless broadcast ***,the chief aim is to enhance link security by optimizing the BN reflection coefficient and BS transmit *** gauge the performance of the proposed scheme,we also present the suboptimal NOMA and conventional orthogonal multiple access as benchmark *** Carlo simulation results demonstrate the superiority of the NOMA BC scheme over the pure NOMA scheme without the BC and conventional orthogonal multiple access schemes in terms of system secrecy rate.

关键词： 6G Non-orthogonal multiple access Ambient backscatter communication Internet-of-things Joint optimization Physical layer security

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A Secure and Lightweight Chaos Based Image Encryption Scheme

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Computers, Materials & Continua 2022年第10期73卷 279-294页

作者： Fadia Ali Khan jameel ahmed Fehaid Alqahtani Suliman A.Alsuhibany Fawad ahmed Jawad Ahmad Department of Electrical Engineering Riphah International UniversityIslamabad44000Pakistan Department of Computer Science King Fahad Naval AcademyAl Jubail35512Saudi Arabia Department of Computer Science College of ComputerQassim UniversityBuraydah51452Saudi Arabia Department of Cyber Security Pakistan Navy Engineering CollegeNUSTKarachi 75350Pakistan School of Computing Edinburgh Napier UniversityEdinburghEH105DTUnited Kingdom

In this paper,we present an image encryption scheme based on the multi-stage chaos-based image encryption *** method works on the principle of confusion and *** proposed scheme containing both confusion and diffusion modules are highly secure and effective as compared to the existing ***,an image(red,green,and blue components)is partitioned into blocks with an equal number of *** block is then processed with Tinkerbell Chaotic Map(TBCM)to get shuffled pixels and shuffled *** Fractal Function(CFF)change the value of pixels of each color component(layer)to obtain a random *** the obtained random sequence,three layers of plain image are ***,with each encrypted layer,Brownian Particles(BP)are XORed that added an extra layer of *** experimental tests including a number of statistical tests validated the security of the presented *** results reported in the paper show that the proposed scheme has higher security and is lightweight as compared to state-of-the-art methods proposed in the literature.

关键词： Chaos fractals fibonacci tinkerbell chaotic map confusion diffusion brownian motion

A Fuzzy Logic Based Power-Efficient Run-Time Reconfigurable Multicore System

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Chinese Journal of Electronics 2018年第3期27卷 549-555页

作者： Shaheryar Najam Muhammad Yasir Qadri Zohaib Najam jameel ahmed Nadia N.Qadri Electrical Engineering Department Riphah International University School of Computer Science and Electronic Engineering University of Essex Electrical Engineering Department HITEC University Department of Electrical Engineering COMSATS Institute of Information Technology

Increasing demand for better throughput and performance has motivated designers to come up with more sophisticated processors with innovative designs. Such designs for multicore architectures offer large amount of parallelism which is often underutilized and thus becomes overhead and liability. Due to these advancements, there has been a exponential increase in power consumption and heat dissipation of computing devices. Under these circumstances, an ideal system would be a reconfigurable system that can switch off all underutilized resources and work with only required ones. There is a need of reconfigurable computing devices and processors that are smart enough to configure themselves dynamically on runtime to find balance between throughput and power-consumption. This paper proposes a novel fuzzy logic based Dynamic voltage and frequency scaling(DVFS)and power-gating enabled controller which is capable of reducing power-consumption without affecting throughput and overall performance of the system. The design is implemented on Intel processor using Ubuntu as an operating system. Implementation results show that proposed Fuzzy logic controller(FLC) reduces power-consumption upto 40% by reconfiguring the processor dynamically without compromising the throughput.

关键词： DVFS Fuzzy logic controller Energy Throughput

Robust Multi-Output Machine Learning Regression for Seismic Hazard Model Using Peak Crust Acceleration Case Study,Turkey,Iraq and Iran

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Journal of Earth Science 2023年第5期34卷 1447-1464页

作者： Shaheen mohammed Saleh ahmed Hakan Guneyli Department of Geology College of ScienceKirkuk UniversityKirkuk 36001Iraq Department of Geology Faculty EngineeringCukurova UniversityBalcali-Adana 01330Turkey

This paper for the first time improved a Robust Multi-Output machine learning regression model for seismic hazard zoning of Turkey, Iraq and Iran using constructed 3-D shear-wave velocity(Vs), seismic tomography dataset model for the crust and uppermost mantle beneath the study area. The focus of this paper’s opportunity is to develop a scientific framework leveraging machine learning that will ultimately provide the rapid and more complete characterization of earthquake properties. This work can be targeted at improving the seismic hazard zones system ability to detect and associate seismic signals, or at estimating other seismic characteristics(crust acceleration and crust energy) while traditionally, methods cannot monitor the earthquakes system. This work has derived some physical equations for extraction of many variables as inputs for our developed machine learning model based on a reliable understanding of the tomography data to physical variables by preparing huge dataset from different physical conditions of crust. We have extracted the velocity values of the shear waves from the original NETCDF file, which contains the S velocity values for every one km of the depths of the crust for the study area from one km down to the uppermost mantle beneath the Middle East. For the first time, this study calculated new seismic hazard parameter called Peak Crust Acceleration(PCA) for seismic hazard analysis by considering the transmitted initial seismic energy through the Earthy wrote in python language ’s crust layers from hypocenter. All machine learning algorithms in this studusing anaconda platform the open-source Individual Edition(Distribution).

关键词： robust multi-output regressor tomography peak crust acceleration NETCDF machine learning hazards

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URL Phishing Detection Using Particle Swarm Optimization and Data Mining

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Computers, Materials & Continua 2022年第12期73卷 5625-5640页

作者： Saeed M.Alshahrani Nayyar ahmed Khan jameel Almalki Waleed Al Shehri College of Computing and IT-Shaqra University Shaqra155572Saudi Arabia Department of Computer Science College of Computer in Al-LeithUmm Al-Qura UniversityMakkahSaudi Arabia

The continuous destruction and frauds prevailing due to phishing URLs make it an indispensable area for *** techniques are adopted in the detection process,including neural networks,machine learning,or hybrid techniques.A novel detection model is proposed that uses data mining with the Particle Swarm Optimization technique(PSO)to increase and empower the method of detecting phishing *** selection based on various techniques to identify the phishing candidates from the URL is *** this approach,the features mined from the URL are extracted using data mining *** features are selected on the basis of URL *** classification of these features identified by the data mining rules is done using PSO *** selection of features with PSO optimization makes it possible to identify phishing *** a large number of rule identifiers,the true positive rate for the identification of phishing URLs is maximized in this *** experiments show that feature selection using data mining and particle swarm optimization helps tremendously identify the phishing URLs based on the structure of the URL ***,it can minimize processing time for identifying the phishing website ***,the approach can be beneficial to identify suchURLs over the existing contemporary detecting models proposed before.

关键词： Phishing particle swarm optimization feature selection data mining classification cloud application

A novel algorithm for distance measurement using stereo camera

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CAAI Transactions on Intelligence Technology 2022年第2期7卷 177-186页

作者： Elmehdi Adil mohammed Mikou ahmed Mouhsen MISI Laboratory Faculty of Sciences and TechniquesHassan First University of SettatSettatMorocco IMII Laboratory Faculty of Sciences and TechniquesHassan First University of SettatSettatMorocco

Distance estimation can be achieved by using active sensors or with the help of passive sensors such as *** stereo vision system is generally composed of two cameras to mimic the human binocular *** this paper,a Python-based algorithm is pro-posed to find the parameters of each camera,rectify the images,create the disparity maps and finally use these maps for distance *** using real-time im-ages,which were captured from our stereo vision system,of different obstacles posi-tioned at multiple distances(60-200 cm)prove the effectiveness of the proposed program and show that the calculated distance to the obstacle is relatively *** accuracy of distance measurement is up to 99.83%.The processing time needed to calculate the distance between the obstacle and the cameras is less than 0.355 s.

关键词： computer vision disparity maps distance measurement Python stereoscopic processing

Ding w-Flat Modules and Dimensions

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Algebra Colloquium 2018年第2期25卷 203-216页

作者： Fuad Ali ahmed Almahdi mohammed Tamekkante Department of Mathematics Faculty of Sciences King Khalid University P. O. Box. 9004 Abha Saudi Arabia Laboratory MACS Faculty of Sciences University Moulay Ismail 5000 P.B. 11201 Zitoune Meknes Morocco

The introduction of w-operation in the class of flat modules has been successful. Let R be a ring. An R-module M is called a w-fiat module if Tor1r（M, N） is GV-torsion for all R-modules N. In this paper, we introduce the w-operation in Gorenstein homological algebra. An R-module M is called Ding w-flat if there exists an exact sequence of projective R-modules ... → P1 → P0 → p0 → p1 → ... such that M Im（P0 → p0） and such that the functor HomR （-,F） leaves the sequence exact whenever F is w-flat. Several well- known classes of rings are characterized in terms of Ding w-flat modules. Some examples are given to show that Ding w-flat modules lie strictly between projective modules and Gorenstein projective modules. The Ding w-flat dimension （of modules and rings） and the existence of Ding w-flat precovers are also studied.

关键词： w-fiat module and dimension Gorenstein projective module and dimension,strongly Gorenstein flat module