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MHD Maxwell Fluid with Heat Transfer Analysis under Ramp Velocity and Ramp Temperature Subject to Non-Integer Differentiable Operators

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Computer Modeling in Engineering & Sciences 2021年第2期126卷 821-841页

作者： Thabet Abdeljawad Muhammad bilal riaz Syed Tauseef Saeed Nazish Iftikhar Department of Mathematics and General Sciences Prince Sultan UniversityRiyadh12435Saudi Arabia Department of Medical Research China Medical UniversityTaichung404Taiwan Department of Computer Science and Information Engineering Asia UniversityTaichung41354Taiwan Department of Mathematics University of Management and TechnologyLahore54770Pakistan Institute for Groundwater Studies(IGS) University of the Free StateBloemfontein9301South Africa Department of Science&Humanities National University of Computer and Emerging SciencesLahore54000Pakistan

The main focus of this study is to investigate the impact of heat generation/absorption with ramp velocity and ramp temperature on magnetohydrodynamic(MHD)time-dependent Maxwell fluid over an unbounded plate embedded in a permeable ***-dimensional parameters along with Laplace transformation and inversion algorithms are used to find the solution of shear stress,energy,and velocity ***,new fractional differential operators are used to define ramped temperature and ramped *** obtained analytical solutions are plotted for different values of emerging *** time derivatives are used to analyze the impact of fractional parameters(memory effect)on the dynamics of the *** making a comparison,it is observed that the fractional-order model is best to explain the memory effect as compared to classical *** results suggest that the velocity profile decrease by increasing the effective Prandtl *** existence of an effective Prandtl number may reflect the control of the thickness of momentum and enlargement of thermal *** incremental value of the M is observed for a decrease in the velocity field,which reflects to control resistive ***,it is noted that the Atangana-Baleanu derivative in Caputo sense(ABC)is the best to highlight the dynamics of the *** influence of pertinent parameters is analyzed graphically for velocity and energy *** for skin friction and Nusselt number are also derived for fractional differential operators.

关键词： MHD Maxwell fluid fractional differential operator heat generation absorption thermal effect non-singular kernels

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Dynamical Analysis of Radiation and Heat Transfer on MHD Second Grade Fluid

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Computer Modeling in Engineering & Sciences 2021年第11期129卷 689-703页

作者： Aziz-Ur-Rehman Muhammad bilal riaz Syed Tauseef Saeed Shaowen Yao Department of Mathematics University of Management and TechnologyLahore54770Pakistan Institute for Groundwater Studies(IGS) University of the Free StateBloemfontein9301South Africa Department of Science&Humanities National University of Computer and Emerging SciencesLahore54000Pakistan School of Mathematics and Information Science Henan Polytechnic UniversityJiaozuo454000China

Convective flow is a self-sustained flow with the effect of the temperature *** density is non-uniform due to the variation of *** effect of the magnetic flux plays a major role in convective *** process of heat transfer is accompanied by a mass transfer process;for instance,condensation,evaporation,and chemical *** to the applications of the heat and mass transfer combined effects in a different field,the main aim of this paper is to do a comprehensive analysis of heat and mass transfer of MHD unsteady second-grade fluid in the presence of ramped boundary conditions near a porous *** dynamical analysis of heat transfer is based on classical differentiation with no memory *** non-dimensional form of the governing equations of the model is *** are solved by the classical integral(Laplace)transform technique/method with the convolution theorem and closed-form solutions are attained for temperature,concentration,and *** physical aspects of distinct parameters are discussed via graph to see the influence on the fluid concentration,velocity,and *** results suggest that the velocity profile decrease by increasing the Prandtl *** existence of a Prandtl number may reflect the control of the thickness of momentum and enlargement of thermal ***,to validate our results,some results are recovered from the literature.

关键词： Heat transfer magnetic effect ramped conditions porous medium Laplace transform thermal radiation

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Redefined Extended Cubic B-Spline Functions for Numerical Solution of Time-Fractional Telegraph Equation

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Computer Modeling in Engineering & Sciences 2021年第4期127卷 361-384页

作者： Muhammad Amin Muhammad Abbas Dumitru Baleanu Muhammad Kashif Iqbal Muhammad bilal riaz Department of Mathematics National College of Business Administration&EconomicsLahore54660Pakistan Department of Mathematics University of SargodhaSargodha40100Pakistan Department of Mathematics Faculty of Arts and SciencesCankaya UniversityAnkara06530Turkey Department of Medical Research China Medical University HospitalChina Medical UniversityTaichung40402Taiwan Institute of Space-Sciences Bucharest077125Romania Department of Mathematics Government College UniversityFaisalabad38000Pakistan Department of Mathematics University of Management and TechnologyLahore54700Pakistan

This work is concerned with the application of a redefined set of extended uniform cubic B-spline(RECBS)functions for the numerical treatment of time-fractional Telegraph *** presented technique engages finite difference formulation for discretizing the Caputo time-fractional derivatives and RECBS functions to interpolate the solution curve along the spatial *** analysis of the scheme is provided to ensure that the errors do not amplify during the execution of the numerical *** derivation of uniform convergence has also been *** computational experiments are executed to verify the theoretical *** results are compared with the existing schemes and it is concluded that the present scheme returns superior outcomes on the topic.

关键词： Extended cubic B-spline redefined extended cubic B-spline time fractional telegraph equation caputo fractional derivative finite difference method convergence

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采用控制理论方法制备量子门

采用控制理论方法制备量子门

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作者： bilal riaz 中国科学技术大学

学位级别：硕士

本论文的重点是利用控制理论和工程方法实现量子门。由于量子门的实现对于实现量子计算机的实现非常重要,控制量子门系统的量子系统方法对量子计算机的实现非常重要。本文基于Lyapunov方法研究了—个量子比特量子门的实现,并采用最优控... 详细信息

本论文的重点是利用控制理论和工程方法实现量子门。由于量子门的实现对于实现量子计算机的实现非常重要,控制量子门系统的量子系统方法对量子计算机的实现非常重要。本文基于Lyapunov方法研究了—个量子比特量子门的实现,并采用最优控制方法实现了两个量子比特量子门。为了实现—个量子位量子门,我们采用了基于Lyapunov的方法,这是因为—个量子位系统是最简单的量子系统,—个量子位系统的演化要么位于布洛赫球体上要么在其内部,这非常简单,几何结构,这类系统的演化类似于球体上或球体内的经典旋转。多量子比特量子系统不同于—个量子比特系统,因为我们不能将它们的演化看作是球上的演化,这是由于相互作用的结果导致多量子比特量子系统的纠缠,这是我们的主要原因没有将我们的Lyapunov方法扩展到多量子位系统。为了实现多量子比特量子系统的相干控制,最广泛采用的方法是最优量子控制。基于最优控制的策略具有的优点是,在实现中也可以考虑诸如控制频带限制和幅度限制的实验性约束。因此,对于两个量子位量子门合成,我们应用了最佳控制方法如Krotov方法,GRAPE,CRAB以及CRAB和GRAPE的组合。在本论文中,对于具有Ising型漂移的封闭两个量子比特量子系统的可控非门的制备,所有这些方法都进行了研究和比较。本文还表明,基于梯度的量子门设计优化控制方法比非梯度方法有更好的表现。

关键词： Lyapunov Method Quantum Gate CRAB GRAPE Krotov Method

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Lyapunov Based Control for One Qubit Quantum Gates in Coherence Vector Formulation

Lyapunov Based Control for One Qubit Quantum Gates in Cohere...

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第37届中国控制会议

作者： bilal riaz Shuang Cong Shahid Qamar Department of Automation University of science and Technology of China

The design of one qubit quantum gates with Lyapunov-based method is studied in this paper. Firstly, one qubit quantum control system is described in the coherence vector formation, then two types of Lyapunov functions are selected to implement NOT gate. The performances of control laws derived from both Lyapunov functions are compared and analyzed by means of the simulations for the NOT gate implementation.

关键词： Qubit Quantum Gates Lyapunov-based Control coherence vector

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The quasi-Gramian solution of a non-commutative extension of the higher-order nonlinear Schr?dinger equation

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Communications in Theoretical Physics 2024年第3期76卷 51-61页

作者： H W A riaz J Lin Department of Physics Zhejiang Normal UniversityJinhua 321004China

The nonlinear Schr?dinger(NLS)equation,which incorporates higher-order dispersive terms,is widely employed in the theoretical analysis of various physical *** this study,we explore the non-commutative extension of the higher-order NLS *** treat real or complex-valued functions,such as g_(1)=g_(1)(x,t)and g_(2)=g_(2)(x,t)as non-commutative,and employ the Lax pair associated with the evolution equation,as in the commutation *** derive the quasi-Gramian solution of the system by employing a binary Darboux *** soliton solutions are presented explicitly within the framework of *** visually understand the dynamics and solutions in the given example,we also provide simulations illustrating the associated ***,the solution can be used to study the stability of plane waves and to understand the generation of periodic patterns within the context of modulational instability.

关键词： integrable systems Darboux transformation solitons

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ROBO-SPOT:Detecting Robocalls by Understanding User Engagement and Connectivity Graph

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Big Data Mining and Analytics 2024年第2期7卷 340-356页

作者： Muhammad Ajmal Azad Junaid Arshad Farhan riaz College of Comnputer Science Birmingham City UniversityBirminghamB55JUUK School of Computer Science University of LincolnLincolnLN67TSUK

Robo or unsolicited calls have become a persistent issue in telecommunication networks,posing significant challenges to individuals,businesses,and regulatory *** calls not only trick users into disclosing their private and financial information,but also affect their productivity through unwanted phone ringing.A proactive approach to identify and block such unsolicited calls is essential to protect users and service providers from potential ***,this paper proposes a solution to identify robo-callers in the telephony network utilising a set of novel features to evaluate the trustworthiness of callers in a *** trust score of the callers is then used along with machine learning models to classify them as legitimate or *** use a large anonymized dataset(call detailed records)from a large telecommunication provider containing more than 1 billion records collected over 10 *** have conducted extensive evaluation demonstrating that the proposed approach achieves high accuracy and detection rate whilst minimizing the error ***,the proposed features when used collectively achieve a true-positive rate of around 97%with a false-positive rate of less than 0.01%.

关键词： social network analysis reputation unwanted calls robo-callers telephone network Spam Over Internet Technology(SPIT)

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Optimization Algorithms of PERT/CPM Network Diagrams in Linear Diophantine Fuzzy Environment

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Computer Modeling in Engineering & Sciences 2024年第4期139卷 1095-1118页

作者： Mani Parimala Karthikeyan Prakash Ashraf Al-Quran Muhammad riaz Saeid Jafari Department of Mathematics Bannari Amman Institute of TechnologySathyamangalamTamil Nadu638401India Basic Sciences Department Preparatory Year DeanshipKing Faisal UniversityAl-Ahsa31982Saudi Arabia Department of Mathematics University of the PunjabLahorePakistan College of Vestsjaelland South Herrestraede 11Slagelse4200Denmark

The idea of linear Diophantine fuzzy set(LDFS)theory with its control parameters is a strong model for machine learning and optimization under *** activity times in the critical path method(CPM)representation procedures approach are initially static,but in the Project Evaluation and Review Technique(PERT)approach,they are *** study proposes a novel way of project review and assessment methodology for a project network in a linear Diophantine fuzzy(LDF)*** LDF expected task time,LDF variance,LDF critical path,and LDF total expected time for determining the project network are all computed using LDF numbers as the time of each activity in the project *** primary premise of the LDF-PERT approach is to address ambiguities in project network activity timesmore simply than other approaches such as conventional PERT,Fuzzy PERT,and so *** LDF-PERT is an efficient approach to analyzing symmetries in fuzzy control systems to seek an optimal *** also present a new approach for locating LDF-CPM in a project network with uncertain and erroneous activity *** the available resources and activity times are imprecise and unpredictable,this strategy can help decision-makers make better judgments in a project.A comparison analysis of the proposed technique with the existing techniques has also been *** suggested techniques are demonstrated with two suitable numerical examples.

关键词： Linear Diophantine fuzzy graphs project management PERT CPM linear Diophantine fuzzy numbers score function accuracy function

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Customizable multifunctional metasurface absorber based on bidirectional deep neural networks covering the quasi-entire terahertz band

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Chinese Optics Letters 2024年第6期22卷 182-190页

作者： Zhipeng Ding Wei Su Lipeng’an Ye Yuanhang Zhou Wenlong Li riaz Ali Bin Tang Hongbing Yao College of Mechanics and Engineering Science Hohai UniversityNanjing 211100China School of Microelectronics and Control Engineering Changzhou UniversityChangzhou 213164China

In this work, we propose a novel approach that combines a bidirectional deep neural network(BDNN) with a multifunctional metasurface absorber(MMA) for inverse design, which can effectively address the challenge of on-demand customization for absorbers. The inverse design of absorption peak frequencies can be achieved from 0.5 to 10 terahertz(THz), covering the quasi-entire THz band. Based on this, the BDNN is extended to broadband absorption, and the inverse design yields an MMA at the desired frequency. This work provides a broadly applicable approach to the custom design of multifunctional devices that can facilitate the evaluation and design of metasurfaces in electromagnetic absorption.

关键词： terahertz inverse design bidirectional deep neural network metasurface

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Elevating Image Steganography:A Fusion of MSB Matching and LSB Substitution for Enhanced Concealment Capabilities

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Computers, Materials & Continua 2024年第5期79卷 2923-2943页

作者： Muhammad Zaman Ali Omer riaz Hafiz Muhammad Hasnain Waqas Sharif Tenvir Ali Gyu Sang Choi Department of Information Technology The Islamia University of BahawalpurBahawalpur63100Pakistan Department of Computer Science The Islamia University of BahawalpurBahawalpur63100Pakistan School of Computer Science and Engineering Yeungnam UniversityGyeongbuk38541Korea

In today’s rapidly evolving landscape of communication technologies,ensuring the secure delivery of sensitive data has become an essential *** overcome these difficulties,different steganography and data encryption methods have been proposed by researchers to secure *** of the proposed steganography techniques achieve higher embedding capacities without compromising visual imperceptibility using LSB *** this work,we have an approach that utilizes a combinationofMost SignificantBit(MSB)matching andLeast Significant Bit(LSB)*** proposed algorithm divides confidential messages into pairs of bits and connects them with the MSBs of individual pixels using pair matching,enabling the storage of 6 bits in one pixel by modifying a maximum of three *** proposed technique is evaluated using embedding capacity and Peak Signal-to-Noise Ratio(PSNR)score,we compared our work with the Zakariya scheme the results showed a significant increase in data concealment *** achieved results of ourwork showthat our algorithmdemonstrates an improvement in hiding capacity from11%to 22%for different data samples while maintaining a minimumPeak Signal-to-Noise Ratio(PSNR)of 37 *** findings highlight the effectiveness and trustworthiness of the proposed algorithm in securing the communication process and maintaining visual integrity.

关键词： Steganography most significant bit(MSB) least significant bit(LSB) peak signal-to-noise ratio(PSNR)

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