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Advances in Applied Mathematics and Mechanics 2012年第4期4卷 422-438页

作者： Vedat Suat Erturk zaid M.Odibat Shaher Momani Department of Mathematics Faculty of Arts and SciencesOndokuz Mayis University55139SamsunTurkey Prince Abdullah Bin Ghazi Faculty of Science and IT Al-Balqa Applied UniversityAl-Salt 19117Jordan The University of Jordan Faculty of ScienceDepartment of MathermaticsAmman 1194Jordan

In this paper,a reliable algorithm based on an adaptation of the standard differential transform method is presented,which is the multi-step differential transform method(MSDTM).The solutions of non-linear oscillators were obtained by *** comparisons between the MSDTM and the classical fourthorder Runge-Kutta method(RK4)reveal that the proposed technique is a promising tool to solve non-linear oscillators.

关键词： Non-linear oscillatory systems differential transform method numerical solution

Nonlinear Components of a Block Cipher over Eisenstein Integers

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Computers, Materials & Continua 2023年第12期77卷 3659-3675页

作者： Mohammad Mazyad Hazzazi Muhammad Sajjad zaid Bassfar Tariq Shah Ashwag Albakri Department of Mathematics College of ScienceKing Khalid UniversityAbha61413Saudi Arabia Department of Mathematics Quaid-I-Azam UniversityIslamabad45320Pakistan Department of Information Technology University of TabukTabuk71491Saudi Arabia Department of Computer Science College of Computer Science&Information TechnologyJazan UniversityJazan45142Saudi Arabia

In block ciphers,the nonlinear components,also known as substitution boxes(S-boxes),are used with the purpose to induce confusion in *** the last decade,most of the work on designing S-boxes over the points of elliptic curves,chaotic maps,and Gaussian integers has been *** main purpose of these studies is to hide data and improve the security levels of crypto *** this work,we design pair of nonlinear components of a block cipher over the residue class of Eisenstein integers(EI).The fascinating features of this structure provide S-boxes pair at a time by fixing three ***,in the same way,by taking three fixed parameters only one S-box is obtained through a prime field-dependent Elliptic curve(EC),chaotic maps,and Gaussian *** newly designed pair of S-boxes are assessed by various tests like nonlinearity,bit independence criterion,strict avalanche criterion,linear approximation probability,and differential approximation probability.

关键词： Eisenstein integers residue class of Eisenstein integers block cipher S-boxes analysis of S-boxes

A Blockchain-Based Architecture for Securing Industrial IoTs Data in Electric Smart Grid

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Computers, Materials & Continua 2023年第3期74卷 5389-5416页

作者： Samir M.Umran Songfeng Lu zaid Ameen Abduljabbar Xueming Tang School of Cyber Science and Engineering Huazhong University of Science and TechnologyWuhan430074China Iraqi Ministry of Industrial and Minerals Iraqi Cement State CompanyBaghdad10011Iraq Shenzhen Huazhong University of Science and Technology Research Institute Shenzhen 518057China Department of Computer Science College of Education for Pure SciencesUniversity of BasrahBasrah61004Iraq

There are numerous internet-connected devices attached to the industrial process through recent communication technologies,which enable machine-to-machine communication and the sharing of sensitive data through a new technology called the industrial internet of things(IIoTs).Most of the suggested security mechanisms are vulnerable to several cybersecurity threats due to their reliance on cloud-based services,external trusted authorities,and centralized architectures;they have high computation and communication costs,low performance,and are exposed to a single authority of failure and *** technology(BC)is widely adopted in the industrial sector for its valuable features in terms of decentralization,security,and *** our work,we propose a decentralized,scalable,lightweight,trusted and secure private network based on blockchain technology/smart contracts for the overhead circuit breaker of the electrical power grid of the Al-Kufa/Iraq power plant as an industrial *** proposed scheme offers a double layer of data encryption,device authentication,scalability,high performance,low power consumption,and improves the industry’s operations;provides efficient access control to the sensitive data generated by circuit breaker sensors and helps reduce power *** also address data aggregation operations,which are considered challenging in electric power smart *** utilize a multi-chain proof of rapid authentication(McPoRA)as a consensus mechanism,which helps to enhance the computational performance and effectively improve the *** advanced reduced instruction set computer(RISC)machinesARMCortex-M33 microcontroller adopted in our work,is characterized by ultra-low power consumption and high performance,as well as efficiency in terms of real-time cryptographic algorithms such as the elliptic curve digital signature algorithm(ECDSA).This improves the computational execution,increases the implementation speed of the asymmetric c

关键词： Smart grids industrial IoTs electric power system blockchain technology IoT applications industry 4.0 decentralization applications

Mordell Elliptic Curve Based Design of Nonlinear Component of Block Cipher

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Computers, Materials & Continua 2022年第11期73卷 2913-2930页

作者： Hafeez ur Rehman Tariq Shah Mohammad Mazyad Hazzazi Ali Alshehri Bassfar zaid Department of Mathematics Quaid-i-Azam UniversityIslamabadPakistan Department of Mathematics College of ScienceKing Khalid UniversityAbhaSaudi Arabia Department of Computer Science University of TabukTabuk71491Saudi Arabia Department of Information Technology University of TabukTabuk71491Saudi Arabia

Elliptic curves(ECs)are deemed one of the most solid structures against modern computational attacks because of their small key size and high *** many well-known cryptosystems,the substitution box(Sbox)is used as the only nonlinear portion of a security ***,it has been shown that using dynamic S-boxes rather than static S-boxes increases the security of a *** conferred study also extends the practical application of ECs in designing the nonlinear components of block ciphers in symmetric key *** this study,instead of the Mordell elliptic curve(MEC)over the prime field,the Galois field has been engaged in constructing the S-boxes,the main nonlinear component of the block ***,the proposed scheme uses the coordinates of MEC and the operation of the Galois field to generate a higher number of S-boxes with optimal nonlinearity,which increases the security of *** proposed S-boxes resilience against prominent algebraic and statistical attacks is evaluated to determine its potential to induce confusion and produce acceptable results compared to other ***,the majority logic criteria(MLC)are used to assess the new S-boxes usage in the image encryption application,and the outcomes indicate that they have significant cryptographic strength.

关键词： Galois field Mordell elliptic curve nonlinearity substitution box

Detection of Copy-Move Forgery in Digital Images Using Singular Value Decomposition

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Computers, Materials & Continua 2023年第2期74卷 4135-4147页

作者： zaid Nidhal Khudhair Farhan Mohamed Amjad Rehman Tanzila Saba Saeed Ali bahaj Faculty of Engineering School of ComputingUniversity Technology of MalaysiaJohar BahruMalaysia UTM-IRDA MaGICX Institute of Human Centered EngineeringUniversiti Teknologi MalaysiaMalaysia Artificial Intelligence&Data Analytics Lab CCIS Prince Sultan University Riyadh Saudi Arabia Computer Techniques Engineering Department Faculty of Information TechnologyImam Ja’afar Al-Sadiq UniversityBaghdadIraq

This paper presents an improved approach for detecting copy-move forgery based on singular value decomposition(SVD).It is a block-based method where the image is scanned from left to right and top to down by a sliding window with a determined *** each step,the SVD is ***,the diagonal matrix’s maximum value(norm)is selected(representing the scaling factor for SVD and a fixed value for each set of matrix elements even when rotating thematrix or scaled).Then,the similar norms are grouped,and each leading group is separated into many subgroups(elements of each subgroup are neighbors)according to 8-adjacency(the subgroups for each leading group must be far from others by a specific distance).After that,a weight is assigned for each subgroup to classify the image as forgery or ***,the F1 score of the proposed system is measured,reaching 99.1%.This approach is robust against rotation,scaling,noisy images,and illumination *** is compared with other similarmethods and presents very promised results.

关键词： Forgery image forensic image processing region duplication SVD transformation technological development

An Optimized Data Fusion Paradigm for WSN Based on Neural Networks

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Computers, Materials & Continua 2021年第10期69卷 1097-1108页

作者： Moath Alsafasfeh zaid A.Arida Omar A.Saraereh Qais Alsafasfeh Salem Alemaishat Department of Computer Engineering Al-Hussein Bin Talal UniversityMa’anJordan School of Computing and Informatics Al Hussein Technical UniversityAmman11831Jordan Department of Electrical Engineering Hashemite UniversityZarqa13133Jordan Department of Electrical Power and Mechatronics Tafila Technical UniversityTafilaJordan School of Computing and Informatics Al-Hussein Technical University KHBPAmman11855Jordan

Wireless sensor networks(WSNs)have gotten a lot of attention as useful tools for gathering *** energy problem has been a fundamental constraint and challenge faced by many WSN applications due to the size and cost constraints of the sensor *** paper proposed a data fusion model based on the back propagation neural network(BPNN)model to address the problem of a large number of invalid or redundant *** three layeredbased BPNNs and a TEEN threshold,the proposed model describes the cluster structure and filters out unnecessary *** the information transmission process,the neural network’s output function is used to deal with a large amount of sensing data,where the feature value of sensing data is extracted and transmitted to the sink *** terms of life cycle,data traffic,and network use,simulation results show that the proposed data fusion model outperforms the traditional TEEN *** a result,the proposed scheme increases the life cycle of the network thereby lowering energy usage and traffic.

关键词： WSN clustering data collection neural networks

Determination of the antioxidant activity based on the content changes in fatty acid methyl esters in vegetable oils

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Journal of Chinese Pharmaceutical Sciences 2014年第12期23卷 873-877页

作者： Housam Haj Hamdo zaid Al-Assaf Warid Khayata Department of Analytical and Food Chemistry Faculty of Pharmacy Aleppo University Department of Analytical and Food Chemistry Faculty of Pharmacy Damascu University

Free radicals, which are generated in several biochemical reactions in the body, have been implicated as mediators of many diseases, including cancer, atherosclerosis and heart diseases. Although the endogenous antioxidants can scavenge these free radicals, they are often insufficient to maintain the in vivo redox balance. The antioxidant activity(AOA) was examined by addition of each tested antioxidants [alpha-tocopherol(α-T), beta-tocopherol(β-T), gamma-tocopherol(γ-T), delta-tocopherol(δ-T), butylated hydroxyanisole(BHA), 2,6-di-tert-butyl-4-methylphenol(BHT), and ascorbyle palmitate(AP)] to four types of different vegetable oils(sunflower oil, soybean oil, corn oil and olive oil). Moreover, content changes in fatty acids were then investigated every 3 months during the storage period. The results showed that the AOA was different among the tested antioxidants. The AOA for BHA was the most for different types of oil compared with other antioxidants, whereas the δ-T possessed the lowest AOA.

关键词： Antioxidant Activity Vegetable oil FAMEs Tocopherol

Knowledge,attitude,and practices toward osteoporosis among Jordanian nurses

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Frontiers of Nursing 2023年第3期10卷 327-333页

作者： Alsalti zaid Abu Alhaja Eyad Abu Nab Hamzeh Department of Nursing Abdali HospitalAmman 11190Jordan Quality Patient Safety and Experience DepartmentAbdali HospitalAmman 11190 Jordan College of Nursing Israa UniversityAmman 11190Jordan

Objective:To identify the level of knowledge,attitude,and practice(KAP)toward osteoporosis among Jordanian ***:A cross-sectional design was adopted in this study.A convenience sample of 443 Jordanian nurses were recruited from the public and private healthcare settings in *** assessment tool used in the current study contained 35 items,measuring KAP among Jordanian nurses toward *** correlation Pearson test and regression test were used to analyze data using Statistical Package for Social Sciences,version ***:The total KAP scores were 33.53,37.65,and 22.7,*** results revealed that Jordanian nurses have a moderate level of KAP toward ***:Jordanian nurses showed a moderate KAP toward osteoporosis,which should be improved as an effective step to reducing the growing incidences of *** lack of KAP holds a serious and growing impact on the Jordanian health sector and patients’health in terms of cost,healthcare resources,and social *** can play a valuable role in educating patients on bone fracture causes,perceived percentage,risks,and prevention,as well as in helping them with nutrition and lifestyle recommendations.

关键词： knowledge attitude practice osteoporosis health belief model

Not so black,not so white:differences in microorganism load of contiguous feathers from white stork chicks

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Current Zoology 2021年第3期67卷 263-270页

作者： zaid Al Rubaiee Haider Al Murayati Marcin Tobolka Piotr Tryjanowski Anders Pape MФller Department of Biology College of ScienceMustansiriya UniversityBaghdadIraq Institute of Zoology Poznan University of Life SciencesPoznanPL-60-625Poland Ecologie Systematique Evolution Universite Paris-SudCNRSAgroParisTechUniversite Paris-SaclayOrsay CedexF-91405France College of Life Sciences Beijing Normal UniversityBeijing100875China

Many organisms are characterized by strikingly contrasting black and white coloration,but the function of such contrasts has been inadequately *** this article,we tested the function of black and white contrasting plumage in white stork Ciconia ciconia *** found greater abundance and diversity of microorganisms on black compared with adjacent white *** addition,nest size was positively correlated with the abundance and diversity of microorganisms on white *** initiation distance(FID),defined as the distance at which adult white storks took flight when approached by a human,was negatively correlated with most measurements of microorganism *** success was generally positively correlated with the abundance and diversity of microorganisms on black *** feather growth rate was positively correlated with some and negatively correlated with other measurements of microbial abundance and ***,chick growth was negatively correlated with the number of microbial species on black feathers and positively with the abundance and diversity of microorganisms on white *** findings are consistent not only with the role of microorganisms in the maintenance of a benign microbial environment which differs between black and white feathers,but also with the hypothesis that several taxa of microorganisms found in black and white plumage are virulent,with negative effects on the fitness of their hosts.

关键词： accumulation of microorganisms Ciconia ciconia fungi microbiome

Phenotypic variations of wheat cultivars from the North China Plain in response to cadmium stress and associated single nucleotide polymorphisms identified by a genome-wide association study

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Pedosphere 2022年第4期32卷 555-564页

作者： Imdad Ullah zaid Sajid Hanif MUHAMMAD Na ZHANG Xin ZHENG Likun WANG Xiaofang LI Centre for Agricultural Resources Research Institute of Genetics and Developmental BiologyChinese Academy of SciencesShijiazhuang 050021China University of Chinese Academy of Sciences Beijing 100049China

Understanding the genetic mechanisms for cadmium (Cd) uptake and translocation in common wheat (Triticum aestivum) is of significance in food Cd contamination control. In this study, a diverse panel of 132 wheat cultivars was collected from the North China Plain. The cultivars were evaluated in terms of their phenotypic variations in response to Cd stress and subjected to a genome-wide association study (GWAS) to identify single nucleotide polymorphisms (SNPs) associated with the phenotypic variations at the seedling stage. Significant phenotypic variations with high heritability were observed among the wheat cultivars exposed to 40 μmol L-1 Cd for the studied traits, including root length (RL), shoot length (SL), root and shoot dry biomasses (RDW and SDW, respectively), root and shoot Cd concentrations (RCD and SCD, respectively), and Cd translocation factor (TF). Mean RCD, SCD, and TF ranged from 1.0 to 33.8, 0.125 to 2.022, and 0.009 to 0.321 mg g-1, respectively. Cluster analysis showed that wheat cultivars with higher RL, SL, RDW, and SDW under Cd stress were able to accumulate more Cd in root, leading to a lower Cd TF. Mixed linear model-based association analysis detected 17 novel significant marker-trait associations (MTAs), four of which were significant at a genome-wide scale. Most of the significant MTAs controlled Cd TF and explained 17.17%–26.47% of the phenotypic variations. Some of the SNP loci were physically close to a reported Cd-related quantitative trait locus or gene on wheat chromosomes. Results of this study provided a list of wheat cultivars with the potential of low Cd accumulation and enriched our knowledge on the genetic basis of Cd uptake and translocation in wheat. Pyramiding breeding of superior alleles detected in this study may additionally reduce Cd accumulation of improved wheat cultivars with excellent agronomic traits.

关键词： cadmium uptake common wheat marker-trait association phenotypic variation quantitative trait locus translocation factor