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A Computational Analysis to Burgers Huxley Equation

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Computers, Materials & Continua 2021年第5期67卷 2161-2183页

作者： Muhammad saqib Muhammad Shoaib Arif Shahid Hasnain Daoud S.Mashat Department of Mathematics Numl UniversityIslamabad44000Pakistan Department of Mathematics Air UniversityIslamabad44000Pakistan Department of Mathematics Air UniversityMultan CampusMultan66000Pakistan Department of Mathematics King Abdulaziz UniversityJeddahSaudi Arabia

The efficiency of solving computationally partial differential equations can be profoundly highlighted by the creation of precise,higher-order compact numerical scheme that results in truly outstanding accuracy at a given *** objective of this article is to develop a highly accurate novel algorithm for two dimensional non-linear Burgers Huxley(BH)*** proposed compact numerical scheme is found to be free of superiors approximate oscillations across discontinuities,and in a smooth ow region,it efciently obtained a high-order *** particular,two classes of higherorder compact nite difference schemes are taken into account and compared based on their computational *** stability and accuracy show that the schemes are unconditionally stable and accurate up to a two-order in time and to six-order in ***,algorithms and data tables illustrate the scheme efciency and decisiveness for solving such non-linear coupled *** is scaled in terms of L_(2) and L_(∞) norms,which validate the approximated results with the corresponding analytical *** investigation of the stability requirements of the implicit method applied in the algorithm was carried *** agreement was constructed under indistinguishable computational *** proposed methods can be implemented for real-world problems,originating in engineering and science.

关键词： Burgers Huxley equation nite difference schemes HOC schemes Thomas algorithm Von-Neumann stability ana

Efficiency of KOH-modified rice straw-derived biochar for reducing cadmium mobility, bioaccessibility and bioavailability risk index in red soil

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Pedosphere 2020年第6期30卷 874-898页

作者： saqib BASHIR Qaiser HUSSAIN Jun ZHU Qingling FU David HOUBEN Hongqing HU Key Laboratory of Arable Land Conservation Middle and Lower Reaches of Yangtse RiverMinistry of AgricultureCollege of Resources and EnvironmentHuazhong Agricultural UniversityWuhan 430070China Department of Soil and Environmental Science Ghazi UniversityDera Ghazi Khan 32200Pakistan Department of Soil Science&SWC PMAS-Arid Agriculture UniversityRawalpindi 46300Pakistan AGHYLE UniLaSalleBeauvais 60011France

Cadmium(Cd)pollution in agricultural soils has exerted a serious threat due to continuous application of pesticides,fertilizers,and wastewater *** present study aimed to test the efficiency of KOH-modified and non-modified rice straw-derived biochar(KBC and BC,respectively)for reducing Cd solubility and bioavailability in Cd-contaminated ***-contaminated soil was incubated for 60 d with 15 and 30 g kg-1 BC and *** the end of incubation,Cd mobility was estimated by the European Community Bureau of Reference sequential extraction and toxicity characteristic leaching procedure(TCLP),while bioavailability was determined using 1 molL-1 NH4NO3 *** bioavailability risk index and bioaccessibility,assessed by a simple bioaccessibility extraction test,of Cd were used to examine the potential effects of Cd on living *** results indicated that application of both KBC and BC significantly increased soil p H,cation exchange capacity,nutrients,and organic *** soluble fraction of Cd was significantly decreased by 30.3%and 27.4%,respectively,with the addition of KBC and BC at 30 g kg-1 compared to the control(without biochar addition).Similarly,the bioaccessible Cd was significantly decreased by 32.4%and 25.2%,respectively,with the addition of KBC and BC at 30 g kg-1 compared to the *** addition,both KBC and BC significantly reduced Cd leaching in the TCLP and NH4NO3-extractable Cd in the amended soil compared to the *** reduction in Cd solubility and bioaccessibility by KBC and BC may be due to significant increases in soil pH and surface ***,KBC at an application rate of 30 g kg-1 demonstrated positive results as soil amendment for Cd immobilization,and reduced bioaccessible Cd in contaminated soil.

关键词： bioaccessible Cd Cd fractionation Cd immobilization NH4NO3-extractable Cd sequential extraction soilpH

Towards Aspect Based Components Integration Framework for Cyber-Physical System

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Computers, Materials & Continua 2022年第1期70卷 653-668页

作者： Sadia Ali Yaser Hafeez Muhammad Bilal saqib Saeed Kyung Sup Kwak University Institute of Information Technology Pir Mehr Ali Shah Arid Agriculture UniversityRawalpindi46000Pakistan Department of Computer Engineering Hankuk University of Foreign StudiesYongin-si17035Korea Department of Computer Information Systems College of Computer Science and Information TechnologyImam Abdulrahman Bin Faisal UniversityP.O.Box 1982DammamSaudi Arabia Department of Information and Communication Engineering Inha UniversityIncheon22212Korea

Cyber-Physical Systems(CPS)comprise interactive computation,networking,and physical *** integrative environment of CPS enables the smart systems to be aware of the surrounding physical *** systems,such as smart health care systems,smart homes,smart transportation,and smart cities,are made up of complex and dynamic *** components integration development approach should be based on the divide and conquer *** way multiple interactive components can reduce the development complexity *** reusability enhances efficiency and consistency in CPS,encapsulation of component functionalities and a well-designed user interface is vital for the better end-user’s Quality of Experience(QoE).Thus,incorrect interaction of interfaces in the cyber-physical system causes system ***,interface failures occur due to false,and ambiguous requirements analysis and ***,to resolve this issue semantic analysis is required for different stakeholders’viewpoint analysis during requirement specification and components *** work proposes a framework to improve the CPS component integration process,starting from requirement specification to prioritization of components for *** semantic analysis and assessing the reusability of specifications,the framework uses text mining and case-based reasoning *** framework has been tested experimentally,and the results show a significant reduction in ambiguity,redundancy,and irrelevancy,as well as increasing accuracy of interface interactions,component selection,and higher user satisfaction.

关键词： Cyber-physical systems component-based development casebased reasoning prioritization requirement management specification text mining

Research on Robust Watermarking Method of Digital Image Using SURF and DCT

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Research on Robust Watermarking Method of Digital Image Usin...

作者： Nawaz saqib Ali 海南大学

学位级别：硕士

在计算机网络技术、多媒体技术和信息技术的不断发展中,数字化已成为显示信息的主要手段。从而促进了数字多媒体信息的存储,复制和传播。在这种情况下,对数字图像,音乐等的任意编辑,复制,修改和传播没有任何限制,这会导致各种社会问题,... 详细信息

在计算机网络技术、多媒体技术和信息技术的不断发展中,数字化已成为显示信息的主要手段。从而促进了数字多媒体信息的存储,复制和传播。在这种情况下,对数字图像,音乐等的任意编辑,复制,修改和传播没有任何限制,这会导致各种社会问题,例如信息安全,版权纠纷和盗版。随着网络和多媒体的发展,数字水印技术作为一种有效的版权保护方法已受到关注。使用基于图像特征的算法来提高数字水印算法的抗几何攻击能力已受到广泛关注。水印图像的常见攻击可分为常规攻击和几何攻击。常规攻击主要包括高斯滤波,噪声攻击,图像压缩等。几何攻击主要包括旋转,缩放,平移和剪切等操作。数字水印算法的鲁棒性是重要的性能指标。当前的水印算法对几何攻击的抵抗力是一个难以解决的问题。这项研究使用水印技术,将水印信息与宿主图像的特征相关联。所研究的算法具有更好的鲁棒性,尤其是对几何攻击的抵抗力。主要研究内容如下:(1)研究了基于SURF感知哈希和DCT的鲁棒盲水印算法。该算法首先利用仿射变换与特征矩阵结合混沌加密技术对水印图像进行预处理,增强水印的机密性,对载体图像进行分块和DCT系数提取。通过修改DCT系数。完成水印的嵌入。并可以实现水印的盲提取。研究发现,SURF算法对几何攻击具有良好的鲁棒性,但是在感知哈希过程中需要优化特征模块的选择。(2)研究了基于SURF和DCT特征的鲁棒零水印算法,该算法也有助于双水印。首先,将原始图像从RGB空间转换为YUV空间,并提取亮度分量的SURF(加速鲁棒特征)。标记点,根据特征点的主要方向构造一个描述向量,实验结果表明,该算法有较好的鲁棒性。(3)研究了基于SURF和DCT和SVD的鲁棒水印算法。针对数字图像水印算法嵌入容量小,抗几何攻击性弱的问题,提出了一种基于加速鲁棒特征算法(SURF),冗余离散小波变换(RDWT)和奇异值分解(SVD)的数字水印算法。利用SURF算法的旋转不变性和平移不变性提取特征点,并对载波图像和水印图像进行RDWT和SVD变换以及逆变换,以实现水印的嵌入和提取。引入了随机采样一致性算法来优化特征点匹配结果。实验结果表明,该算法提高了嵌入水印的能力,有效提高了抗几何攻击的鲁棒性。

关键词：数字水印医学图像水印 SURF DCT

Comparative Efficacy of Weed Control Practices for Parthenium Weed and Sunflower Crop under Varying Tillage Systems

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Phyton-International Journal of Experimental Botany 2020年第3期89卷 727-742页

作者： Noor Ahmad Rana Nadeem Abbas Asif Tanveer Zulfiqar Ahmad saqib Deaprtment of Agronomy University of Agriculture FaisalabadFaisalabad7800Pakistan Institute of Soil and Environmental Science University of Agriculture FaisalabadFaisalabad7800Pakistan

Parthenium poses serious threat to modern crop production system and necessitate evaluating control practices for its effective *** of different weed control practices for controlling parthenium was explored in conventional and deep tillage systems in the field *** hoeing(20 and 35 days after emergence),S-Metolachlor(pre-emergence herbicide),sorghum straw mulch@5 tons ha-1 and combination of hand hoeing and sorghum straw mulch(hand hoeing at 20 and straw mulch at 35 days after emergence)were used as weed control *** check where no weed control measure was applied was also included in this experiment for *** concluded that the all weed management treatments significantly reduced parthenium density,its fresh and dry biomass during both the years of study as compared to weedy *** sunflower achene yield was recorded in hand hoeing(20 and 35 days after emergence)in combination with deep ***,mold bold plough used for the purpose of deep tillage should be encouraged for better control of parthenium and higher achene yield of sunflower crop(3293.3 kg ha^(-1) in 2017 and 3221.3 kg ha^(-1) in 2018).Moreover,is also inferred that total dose of herbicide might be reduced by using hoeing and mulching in an integrated way.

关键词： Parthenium mulch hoeing tillage s-metolachlor sunflower

Analysis of Silver Nanoparticles in Engine Oil: Atangana–Baleanu Fractional Model

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Computers, Materials & Continua 2021年第6期67卷 2915-2932页

作者： saqib Murtaza Farhad Ali Nadeem Ahmad Sheikh Ilyas Khan Kottakkaran Sooppy Nisar Department of Mathematics City University of Science and Information TechnologyPeshawar25000Pakistan Computational Analysis Research Group Ton Duc Thang UniversityHo Chi Minh City70000Vietnam Faculty of Mathematics and Statistics Ton Duc Thang UniversityHo Chi Minh City70000Vietnam Department of Mathematics College of Science Al-ZulfiMajmah UniversityAl-Majmah11952Saudi Arabia Department of Mathematics College of Arts and SciencePrince Sattam bin Abdulaziz UniversityWadi Al-Dawaser11991Saudi Arabia

The present article aims to examine the heat and mass distribution in a free convection flow of electrically conducted,generalized Jeffrey nanofluid in a heated rotatory *** flow analysis is considered in the presence of thermal radiation and the transverse magnetic field of strength *** medium is porous accepting generalized Darcy’s *** motion of the fluid is due to the cosine oscillations of the *** has been formed by the uniform dispersing of the Silver nanoparticles in regular engine *** problem has been modeled in the form of classical partial differential equations and then generalized by replacing time derivative with Atangana–Baleanu(AB)time-fractional *** taking the Laplace transform technique(LTT)and using physical boundary conditions,exact expressions have been obtained for momentum,energy,and concentration *** impact of a number of parameters on fluid flow is shown *** numerical tables have been computed for variation in the rate of heat and mass transfer with respect to rooted ***,the classical solution is recovered by taking the fractional parameter approaching *** is worth noting that by adding silver nanoparticles in regular engine oil,its heat transfer rate increased by 14.59%,which will improve the life and workability of the engine.

关键词： Jeffrey fluid silver nanoparticles engine oil Atangana-Baleanu fractional derivatives Laplace transform technique

Configurations and Control of Traction Motors for Electric Vehicles:A Review

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Chinese Journal of Electrical Engineering 2017年第3期3卷 1-17页

作者： saqib Jamshed Rind Yaxing Ren Yihua Hu Jibing Wang Lin Jiang Department of Electrical Engineering and Electronics The University of LiverpoolL693BXUK Sicher Elevator Co. Ltd.Huzhou 313009China

In recent decades,worldwide global warming and reduction in petroleum resources have accelerated researcher’s attention to produce alternative sustainable and environmentally clean transportation *** of vehicular technology is capable of curbing the environmental pollution problem in an efficient and effective way,due to high efficiency electric motors,development and advancement in the field of power electronic devices,digital signal processing and advanced control *** article presents a comprehensive review on different configurations/architecture of electric vehicles(EVs)and hybrid electric vehicles(HEVs),traction motors for electric propulsion system and high performance speed sensorless control of traction *** basic architecture key components of hybrid vehicle and different power train configurations with respect to applications and limitations are *** integral part of electric propulsion system,traction motor classes for desired operational characteristics and limitations are summarized from a system perspective with the latest *** performance traction motor control techniques are discussed with respect to automotive ***,speed sensorless control techniques research trends as well as an extensive review on rotor speed estimation techniques for robust and efficient sensorless traction drive control are *** article provides state of the art key global trends and tradeoff of various technologies with future trends and potential areas of research.

关键词： Electric vehicle architecture vehicle powertrain configurations traction motors traction drive control motor sensorless control

Intelligent Dynamic Gesture Recognition Using CNN Empowered by Edit Distance

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Computers, Materials & Continua 2021年第2期66卷 2061-2076页

作者： Shazia saqib Allah Ditta Muhammad Adnan Khan Syed Asad Raza Kazmi Hani Alquhayz Department of ComputerScience Lahore Garrison UniversityLahore54000Pakistan Department of Information Sciences Division of Science&TechnologyUniversity of EducationLahore54000Pakistan GC University Lahore54000Pakistan Department of Computer Science and Information College of Sciencein ZulfiMajmaah UniversityAl-Majmaah11952Saudi Arabia

Human activity detection and recognition is a challenging *** surveillance can benefit greatly by advances in Internet of Things(IoT)and cloud *** intelligence IoT(AIoT)based devices form the basis of a smart *** research presents Intelligent dynamic gesture recognition(IDGR)using a Convolutional neural network(CNN)empowered by edit distance for video *** proposed system has been evaluated using AIoT enabled devices for static and dynamic gestures of Pakistani sign language(PSL).However,the proposed methodology can work efficiently for any type of *** proposed research concludes that deep learning and convolutional neural networks give a most appropriate solution retaining discriminative and dynamic information of the input *** research proposes recognition of dynamic gestures using image recognition of the keyframes based on CNN extracted from the human *** distance is used to find out the label of the word to which those sets of frames belong *** simulation results have shown that at 400 videos per human action,100 epochs,234×234 image size,the accuracy of the system is 90.79%,which is a reasonable accuracy for a relatively small dataset as compared to the previously published techniques.

关键词： Sign languages keyframe edit distance misrate accuracy

ChainApparel: A Trustworthy Blockchain and IoT-Based Traceability Framework for Apparel Industry 4.0

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Computers, Materials & Continua 2023年第11期77卷 1837-1854页

作者： Muhammad Shakeel Faridi saqib Ali Guojun Wang Salman Afsar Awan Muhammad Zafar Iqbal Department of Computer Science University of AgricultureFaisalabad38000Pakistan School of Computer Science Guangzhou UniversityGuangzhou510006China Department of Mathematics and Statistics University of AgricultureFaisalabad38000Pakistan

Trustworthiness and product traceability are essential factors in the apparel industry 4.0 for establishing successful business relationships among stakeholders such as customers,manufacturers,suppliers,and *** stakeholder has implemented different technology-based systems to record and track product ***,these systems work in silos,and there is no intra-system communication,leading to a lack of complete supply chain traceability for all apparel ***,apparel stakeholders are reluctant to share their business information with business competitors;thus,they involve third-party auditors to ensure the quality of the final ***,the apparel manufacturing industry faces challenges with counterfeit products,making it difficult for consumers to determine the authenticity of the ***,in this paper,a trustworthy apparel product traceability framework called ChainApparel is developed using the Internet of Things(IoT)and blockchain to address these challenges of authenticity and traceability of apparel ***,multiple smart contracts are designed and developed for registration,process execution,audit,fault,and product traceability to authorize,validate,and trace every business transaction among the apparel ***,the real-time performance analysis of ChainApparel is carried out regarding transaction throughput and latency by deploying the compute nodes at different geographical locations using Hyperledger *** results conclude that ChainApparel accomplished significant performance under diverse workloads while ensuring complete traceability along the complex supply chain of the apparel ***,the ChainApparel framework helps make the apparel product more trustworthy and transparent in the market while safeguarding trust among the industry stakeholders.

关键词： Blockchain smart contracts hyperledger fabric Internet of Things traceability apparel industry 4.0