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impact of Joule heating and multiple slips on a Maxwell nanofluid flow past a slendering surface

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Communications in Theoretical Physics 2022年第1期74卷 1-15页

作者： Hijaz ahmadand Shafiq ahmad muhammad Naveed Khan Sohail Nadeem Aysha Rehman Hijaz ahmad Rifaqat AN Department of Mathematics Quaid-I-Azam University 45320Islamabad 44000Pakistan Department of Mathematics University of GujratGujrat50700 Pakistan Section of Mathematics International Telematic University UninettunoCorso Vittorio Emanuele II3900186 RomaItaly Department of Mathematics College of Science and ArtsMuhayilKing Khalid University 9004AbhaSaudi Arabia

This manuscript presents a study of three-dimensional magnetohydrodynamic Maxwell nanofluid flow across a slendering stretched surface with Joule *** impact of binary chemical reactions,heat generation,thermal radiation,and thermophoretic effect is also taken into *** multiple slip boundary conditions are utilized at the boundary of the *** appropriate similarity variable is used to transfer the flow modeled equations into ODEs,which are numerically solved by the utilization of the MATLAB bvp4c *** involved parameter's impact on the concentration,velocity,and temperature distribution are scrutinized with *** transport rates(mass,heat)are also investigated using the same variables,with the results reported in tabulated *** is seen that the fluid relaxation,magnetic,and wall thickness characteristics diminish the velocities of ***,the velocity,concentration,and temperature slip parameters reduce the velocities of fluid,temperature,and concentration *** results are compared to existing studies and shown to be in dependable agreement.

关键词： Maxwell nanofluid slendering stretching surface Joule heating thermal radiation thermophoretic effect

Computational investigation of Hand Foot Mouth Disease Dynamics with Fuzziness

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Computers, Materials & Continua 2023年第5期75卷 4175-4189页

作者： Dumitru Baleanu Fazal Dayan Nauman Ahmed muhammad Rafiq Ali Raza muhammad Ozair ahmad Department of Mathematics Cankaya UniversityBalgatAnkara06530Turkey Department of Medical Research China Medical UniversityTaichung406040Taiwan Department of Computer Science and Mathematics Lebanese American UniversityBeirutLebanon Department of Mathematics School of ScienceUniversity of Management and TechnologyLahore54000Pakistan Department of Mathematics and Statistics University of LahoreLahore54590Pakistan Department of Mathematics Faculty of Science and TechnologyUniversity of Central PunjabLahore54000Pakistan Near East University Mathematics Research CenterDepartment of MathematicsNear East Boulevard99138Nicosia/Mersin 10Turkey Department of Mathematics Govt.Maulana Zafar Ali Khan Graduate College WazirabadPunjab Higher Education Department(PHED)Lahore54000Pakistan

The first major outbreak of the severely complicated hand,foot and mouth disease(HFMD),primarily caused by enterovirus 71,was reported in Taiwan in *** surveillance is needed to assess the spread of *** parameters we use in mathematical models are usually classical mathematical parameters,called crisp parameters,which are taken for *** any biological or physical phenomenon is best explained by *** represent a realistic situation in any mathematical model,fuzzy parameters can be very *** articles have been published on how to control and prevent HFMD from the perspective of public health and statistical ***,few works use fuzzy theory in building models to *** this context,we examined anHFMD model with fuzzy parameters.A Non Standard Finite Difference(NSFD)scheme is developed to solve the *** developed technique retains essential properties such as positivity and dynamic *** simulations are presented to support the analytical *** convergence and consistency of the proposed method are also *** proposed method converges unconditionally while the many classical methods in the literature do not possess this *** this regard,our proposed method can be considered as a reliable tool for studying the dynamics of HFMD.

关键词： Hand foot mouth disease fuzzy parameters NSFD scheme convergence consistency

Stochastic neuro-swarming intelligence paradigm for the analysis of magneto-hydrodynamic Prandtl-Eyring fluid flow with diffusive magnetic layers effect over an elongated surface

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Chinese Journal of Chemical Engineering 2024年第10期74卷 295-311页

作者： Zeeshan ikram Butt iftikhar ahmad muhammad Shoaib Syed ibrar Hussain Hira ilyas muhammad Asif Zahoor Raja Department of Mathematics University of GujratGujrat 50700Pakistan Yuan Ze University AI CenterTaoyuanTaiwan 320China Department of Mathematics and Computer Science University of PalermoVia Archirafi 34Palermo 90123Italy Department of Mathematics University of HoustonHoustonTX 77204USA Department of Physical Sciences University of ChenabGujrat 50700Pakistan Future Technology Research Centre National Yunlin University of Science and TechnologyYunlinTaiwan 64002China

in recent years,the integration of stochastic techniques,especially those based on artificial neural networks,has emerged as a pivotal advancement in the field of computational fluid *** techniques offer a powerful framework for the analysis of complex fluid flow phenomena and address the uncertainties inherent in fluid dynamics *** this trend,the current investigation portrays the design and construction of an important technique named swarming optimized neuroheuristic intelligence with the competency of artificial neural networks to analyze nonlinear viscoelastic magneto-hydrodynamic Prandtl-Eyring fluid flow model,with diffusive magnetic layers effect along an extended *** currently designed computational technique is established using inverse multiquadric radial basis activation function through the hybridization of a well-known global searching technique of particle swarm optimization and sequential quadratic programming,a technique capable of rapid convergence *** most appropriate scaling group involved transformations that are implemented on governing equations of the suggested fluidic model to convert it from a system of nonlinear partial differential equations into a dimensionless form of a third-order nonlinear ordinary differential *** transformed/reduced fluid flow model is solved for sundry variations of physical quantities using the designed scheme and outcomes are matched consistently with Adam's numerical technique with negligible magnitude of absolute errors and mean square ***,it is revealed that the velocity of the fluid depreciates in the presence of a strong magnetic field *** efficacy of the designed solver is depicted evidently through rigorous statistical observations via exhaustive numerical experimentation of the fluidic problem.

关键词： PrandtleEyring fluid Particle swarm optimization Hydrodynamic Neural networks Computational fluid dynamics

A panoramic view of Li_(7)P_(3)S_(11) solid electrolytes synthesis, structural aspects and practical challenges for all-solid-state lithium batteries

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Chinese Journal of Chemical Engineering 2021年第11期34卷 16-36页

作者： muhammad Khurram Tufail Niaz ahmad Le Yang Lei Zhou muhammad Adnan Naseer Renjie Chen Wen Yang Key Laboratory of Cluster Science of Ministry of Education Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials School of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 100081China School of Material Science and Engineering Beijing Institute of TechnologyBeijing 100081China institute of Advanced Technology Beijing Institute of TechnologyJinan 250300China

The development of an inorganic electrochemical stable solid-state electrolyte is essentially responsible for future state-of-the-art all-solid-state lithium batteries(ASSLBs).Because of their advantages in safety,working temperature,high energy density,and packaging,ASSLBs can develop an ideal energy storage system for modern electric vehicles(EVs).A solid electrolyte(SE)model must have an economical synthesis approach,exhibit electrochemical and chemical stability,high ionic conductivity,and low interfacial *** to its highest conductivity of 17 mS·cm^(-1),and deformability,the sulfide-based Li_(7)P_(3)S_(11) solid electrolyte is a promising contender for the high-performance bulk type of ***,we present a current glimpse of the progress of synthetic procedures,structural aspects,and ionic conductivity improvement *** elucidation and mechanistic approaches have been extensively discussed by using various characterization *** chemical stability of Li_(7)P_(3)S_(11) could be enhanced via oxide doping,and hard and soft acid/base(HSAB)concepts are also *** issues to be undertaken for designing the ideal solid electrolytes,interfacial challenges,and high energy density have been *** review aims to provide a bird’s eye view of the recent development of Li_(7)P_(3)S_(11)-based solid-state electrolyte applications and explore the strategies for designing new solid electrolytes with a target-oriented approach to enhance the efficiency of high energy density allsolid-state lithium batteries.

关键词： Li_(7)P_(3)S_(11)solid electrolyte 30Li_(2)S-70P_(2)S_(5)glass ceramics Chemical stability Electrolyte/electrode interphase High energy density all-solid-state lithium batteries

Social Distancing and isolation Management Using Machine-to-Machine Technologies to Prevent Pandemics

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Computers, Materials & Continua 2021年第6期67卷 3545-3562页

作者： muhammad Saad Maaz Bin ahmad muhammad Asif Khalid Masood Mohammad A.Al Ghamdi College of Computing and information Sciences PAF KIETKarachiPakistan Department of Computer Science Lahore Garrison UniversityLahorePakistan Department of Computer Science Umm Al-Qura UniversityMakkah CitySaudi Arabia

Social distancing and self-isolation management are crucial preventive measures that can save millions of lives during challenging pandemics of diseases such as the Spanish u,swine u,and coronavirus disease 2019(COViD-19).This study describes the comprehensive and effective implementation of the industrial internet of Things and machine-to-machine technologies for social distancing and smart self-isolation *** technologies can help prevent outbreaks of any disease that can disperse widely and develop into a ***,a smart wristband is proposed that incorporates Bluetooth beacon technology to facilitate the tracing and tracking of Bluetooth Low Energy beacon packets for smart contact ***,the connectivity of the device with Android or iOS applications using long-term evolution technology is realized to achieve ***,mathematical formulations are proposed to measure the distance between coordinates in order to detect geo-fencing *** formulations are specically designed for the virtual circular and polygonal boundaries used to restrict suspected or infected persons from trespassing in predetermined areas,e.g.,at home,in a hospital,or in an isolation *** proposed framework outperforms existing solutions,since it is implemented on a wider scale,provides a range of functionalities,and is cost-effective.

关键词： Coronavirus disease 2019 pandemic machine-to-machine industrial internet of things social distance geo-fencing

Modelling insurance Losses with a New Family of Heavy-Tailed Distributions

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Computers, Materials & Continua 2021年第1期66卷 537-550页

作者： muhammad Arif Dost muhammad Khan Saima Khan Khosa muhammad Aamir Adnan Aslam Zubair ahmad Wei Gao Department of Statistics Abdul Wali Khan UniversityMardan23200Pakistan Department of Statistics Bahauddin Zakariya UniversityMultan60800Pakistan Department of Natural Sciences and Humanities University of Engineering and TechnologyLahore54000Pakistan Department of Statistics Yazd UniversityYazd89175-741Iran School of information Science and Technology Yunnan Normal UniversityKunming650500China

The actuaries always look for heavy-tailed distributions to model data relevant to business and actuarial risk *** this article,we introduce a new class of heavy-tailed distributions useful for modeling data in financial sciences.A specific sub-model form of our suggested family,named as a new extended heavy-tailed Weibull distribution is examined in *** basic characterizations,including quantile function and raw moments have been *** estimates of the unknown parameters of the new model are obtained via the maximum likelihood estimation *** judge the performance of the maximum likelihood estimators,a simulation analysis is performed in ***,some important actuarial measures such as value at risk and tail value at risk are also computed.A simulation study based on these actuarial measures is conducted to exhibit empirically that the proposed model is *** usefulness of the proposed family is illustrated by means of an application to a heavy-tailed insurance loss data *** practical application shows that the proposed model is more flexible and efficient than the other six competing models including(i)the two-parameter models Weibull,Lomax and Burr-Xii distributions(ii)the three-parameter distributions Marshall-Olkin Weibull and exponentiated Weibull distributions,and(iii)a well-known four-parameter Kumaraswamy Weibull distribution.

关键词： Weibull distribution actuarial measures heavy-tailed distributions estimations insurance losses

A Mathematical Approach for Generating a Highly Non-Linear Substitution Box Using Quadratic Fractional Transformation

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Computers, Materials & Continua 2023年第11期77卷 2565-2578页

作者： Abid Mahboob muhammad Asif Rana muhammad Zulqarnain imran Saddique Hijaz ahmad Sameh Askar Department of Mathematics Division of Science and TechnologyUniversity of EducationLahorePakistan Department of Mathematics University of Management and TechnologySialkot Campus51310Pakistan School of Mathematical Sciences Zhejiang Normal UniversityJinhua321004China Department of Mathematics University of Management and TechnologyLahore54770Pakistan Section of Mathematics International Telematic University UninettunoCorso Vittorio Emanuele IIRoma39-00186Italy Department of Statistics and Operations Research College of ScienceKing Saud UniversityP.O.Box 2455Riyadh11451Saudi Arabia

Nowadays,one of the most important difficulties is the protection and privacy of confidential *** address these problems,numerous organizations rely on the use of cryptographic techniques to secure data from illegal activities and *** cryptographic ciphers use the non-linear component of block cipher to ensure the robust encryption process and lawful decoding of plain data during the decryption *** the designing of a secure substitution box(S-box),non-linearity(NL)which is an algebraic property of the S-box has great ***,the main focus of cryptographers is to achieve the S-box with a high value of *** this suggested study,an algebraic approach for the construction of 16×16 S-boxes is provided which is based on the fractional transformation Q(z)=1/α(z)^(m)+β(mod257)and finite *** technique is only applicable for the even number exponent in the range(2-254)that are not multiples of ***,we choose a quadratic fractional transformation,swap each missing element with repeating elements,and acquire the initial *** the second stage,a special permutation of the symmetric group S256 is utilized to construct the final S-box,which has a higher NL score of 112.75 than the Advanced Encryption Standard(AES)S-box and a lower linear probability score of *** addition,a tabular and graphical comparison of various algebraic features of the created S-box with many other S-boxes from the literature is provided which verifies that the created S-box has the ability and is good enough to withstand linear and differential *** different analyses,it is ensured that the proposed S-boxes are better than as compared to the existing *** these S-boxes can be utilized in the security of the image data and the text data.

关键词： Block cipher S-box data security fractional transformation

Comparison of bioavailability and pharmacokinetics of diclofenac sodium and diclofenac potassium in normal and dehydrated rabbits

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药学学报 2009年第1期44卷 80-84页

作者： Mahmood ahmad muhammad iQBAL Ghulam MURTAZA Department of Pharmacy Faculty of Pharmacy and Alternative Medicines the lslamia University of Bahawalpur Bahawalpur 63100 Pakistan

Two different salts of diclofenac,diclofenac sodium and diclofenac potassium,in tablet dosage form were tested for their bioavailability and disposition kinetics in a group of eighteen rabbits in normal and experimentally induced dehydrated conditions with a wash out period of 7 days between both stages of *** and physiological parameters were also measured in both normal and dehydrated *** levels in plasma were determined using a validated reversed phase HPLC *** kinetic parameters ***0-∞,Cmax,Tmax and other disposition kinetics were obtained with non-compartmental *** parameters *** cell volume,plasma glucose and total lipid concentration in dehydrated rabbits increased *** concentration of diclofenac sodium and diclofenac potassium decreased significantly in water deprived *** comparison,diclofenac potassium in normal and dehydrated state of the same group of rabbits showed a significantly increased plasma concentration when compared with diclofenac sodium.

关键词：生物药效率药物动力学药物化学生物化学

Enhanced Topic-Aware Summarization Using Statistical Graph Neural Networks

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Computers, Materials & Continua 2024年第8期80卷 3221-3242页

作者： Ayesha Khaliq Salman Afsar Awan Fahad ahmad muhammad Azam Zia muhammad Zafar iqbal Department of Computer Science University of Agriculture FaisalabadFaisalabadPunjab37300Pakistan School of Computing Faculty of TechnologyUniversity of PortsmouthSouthseaPortsmouthPO12UPUK Department of Mathematics and Statistics University of Agriculture FaisalabadFaisalabadPunjab37300Pakistan

The rapid expansion of online content and big data has precipitated an urgent need for efficient summarization techniques to swiftly comprehend vast textual documents without compromising their original *** approaches in Extractive Text Summarization(ETS)leverage the modeling of inter-sentence relationships,a task of paramount importance in producing coherent *** study introduces an innovative model that integrates Graph Attention Networks(GATs)with Transformer-based Bidirectional Encoder Representa-tions from Transformers(BERT)and Latent Dirichlet Allocation(LDA),further enhanced by Term Frequency-inverse Document Frequency(TF-iDF)values,to improve sentence selection by capturing comprehensive topical *** approach constructs a graph with nodes representing sentences,words,and topics,thereby elevating the interconnectivity and enabling a more refined understanding of text *** model is stretched to Multi-Document Summarization(MDS)from Single-Document Summarization,offering significant improvements over existing models such as THGS-GMM and Topic-GraphSum,as demonstrated by empirical evaluations on benchmark news datasets like Cable News Network(CNN)/Daily Mail(DM)and *** results consistently demonstrate superior performance,showcasing the model’s robustness in handling complex summarization tasks across single and multi-document *** research not only advances the integration of BERT and LDA within a GATs but also emphasizes our model’s capacity to effectively manage global information and adapt to diverse summarization challenges.

关键词： Summarization graph attention network bidirectional encoder representations from transformers Latent Dirichlet Allocation term frequency-inverse document frequency