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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

Phosphorus-Mobilizing Rhizobacterial Strain Bacillus cereus GS6 Improves Symbiotic Efficiency of Soybean on an Aridisol Amended with Phosphorus-Enriched Compost

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Pedosphere 2017年第6期27卷 1049-1061页

作者： muhammad Saleem arif muhammad RIAZ Sher muhammad SHAHZAD Tahira YASMEEN Shafaqat ALI muhammad Javed AKHTAR Department of Environmental Sciences and Engineering Government College University Faisalabad Department of Soil&Environmental Sciences University College of AgricultureUniversity of Sargodha Institute of Soil&Environmental Science University of Agriculture Faisalabad

Legume plants are an essential component of sustainable farming ***(P) deficiency is a significant constraint for legume production, especially in nutrient-poor soils of arid and semi-arid *** the present study, we conducted a pot experiment to evaluate the effects of a phosphorus-mobilizing plant-growth promoting rhizobacterial strain Bacillus cereus GS6, either alone or combined with phosphate-enriched compost(PEC) on the symbiotic(nodulation-N_2 fixation) performance of soybean(Glycine max(L.) Merr.) on an *** PEC was produced by composting food waste with addition of single super *** bacterial strain *** GS6 showed considerable potential for P solubilization and mobilization by releasing carboxylates in insoluble P(rock phosphate)-enriched *** of *** GS6 in combination with PEC application significantly improved nodulation and nodule N_2 fixation *** to the control(without *** GS6 and PEC), the combined application of *** GS6 with PEC resulted in significantly higher accumulation of nitrogen(N), P, and potassium(K) in grain, shoot, and *** N:P and P:K ratios in nodules were significantly altered by the application of PEC and *** GS6, which reflected the important roles of P and K in symbiotic performance of *** combined application of PEC and *** GS6 also significantly increased the soil dehydrogenase and phosphomonoesterase activities, as well as the soil available N, P, and K *** positive relationships were found between soil organic carbon(C) content, dehydrogenase and phosphomonoesterase activities, and available N, P, and K *** study suggests that inoculation of P-mobilizing rhizobacteria, such as *** GS6, in combination with PEC application might enhance legume productivity by improving nodulation and nodule N_2 fixation efficiency.

关键词： arid and semi-arid regions carboxylate N2 fixation nodulation nutrient availability nutrient-poor soils plant growth-promoting rhizobacteria (PGPR) soil enzymes

A Systematic Literature Review of Deep Learning Algorithms for Segmentation of the COVID-19 Infection

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Computers, Materials & Continua 2023年第6期75卷 5717-5742页

作者： Shroog Alshomrani muhammad arif Mohammed A.Al Ghamdi Department of Computer Science College of Computer and Information SciencesUmm AlQura UniversityMakkah24231Saudi Arabia

Coronavirus has infected more than 753 million people,ranging in severity from one person to another,where more than six million infected people died ***-aided diagnostic(CAD)with artificial intelligence(AI)showed outstanding performance in effectively diagnosing this virus in *** tomography is a complementary diagnostic tool to clarify the damage of COVID-19 in the lungs even before symptoms appear in *** paper conducts a systematic literature review of deep learning methods for classifying the segmentation of COVID-19 infection in the *** used the methodology of systematic reviews and meta-analyses(PRISMA)flow *** research aims to systematically analyze the supervised deep learning methods,open resource datasets,data augmentation methods,and loss functions used for various segment shapes of COVID-19 infection from computerized tomography(CT)chest *** have selected 56 primary studies relevant to the topic of the *** have compared different aspects of the algorithms used to segment infected areas in the CT *** to deep learning in the segmentation of infected areas still need to be developed to predict smaller regions of infection at the beginning of their appearance.

关键词： COVID-19 segmentation chest CT images deep learning systematic review 2D and 3D supervised deep learning

Pulsed Corona Discharges and Their Applications in Toxic VOCs Abatement

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Chinese Journal of Chemical Engineering 1999年第4期7卷 351-362页

作者： muhammad arif Malik Salman Akbar Malik Applied Chemistry Division PINSTECHPO NiloreIslamabadPakistanDepartment of Biological SciencesQuaid-i-Azam UniversityIslamabadPakistan

Plasma processes are among the emerging technologies for volatile organic compounds (VOCs) abatement[1]. Both thermal plasmas and non-equilibrium plasmas (cold plasmas) are being developed for VOCs cleanup[2,3]. Particularly, pulsed corona discharges offer several advantages over conventional VOCs abatement techniques[4-7]. To optimize the existing technology and to develop it further, there is need to understand the mechanisms involved in plasma chemical reactions. Furthermore, it is strongly desirable to be able to predict the behavior of new VOCs in non-equilibrium plasma environment from the data known for a few representative compounds. Pulsed corona discharge technique is introduced here with citation of relevant literature. Fundamental principles, useful for predicting the VOCs' decomposition behavior, have been worked out from the published literature. Latest developments in the area, targeted to minimize the energy losses, improve the VOCs destruction efficiency and reduce the generation of unwanted organic and inorganic by-products, are presented.

关键词： corona discharges volatile organic compounds air purification water purification nonequilibrium plasma

Mass Transfer of MHD Nanofluid in Presence of Chemical Reaction on A Permeable Rotating Disk with Convective Boundaries, Using Buongiorno’s Model

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Computer Modeling in Engineering & Sciences 2018年第7期116卷 31-49页

作者： muhammad Shoaib arif Yasir Nawaz Mairaj Bibi Zafar Ali Department of Mathematics Air UniversityPAF Complex E-9Islamabad44000Pakistan Department of Mathematics Comsats UniversityPark Road Chak Shahzad CampusIslamabad44000Pakistan

This communiquéis opted to study the flow of nanofluid because of heated disk rotation subjected to the convective boundaries with chemical reaction of first *** Buongiorno’s model for nanofluids is used due to its wide range of applications and the rotating disk under investigation is *** magneto Reynolds parameter and boundary layer assumptions are carried out to formulate the *** system of nonlinear partial differential equations governing the flow problem is converted into the set of ordinary differential equations by using particular relations known as Von Karman *** complicated set of coupled ordinary differential equations with complicated boundary conditions is set to solve by an analytical technique Homotopy Analysis Method(HAM).Whereby the results obtained by the aforementioned method are provided analytically and analyzed *** validation of the work is confirmed by providing comparison of previous works in tabular *** of chemical reaction parameter on mass transfer rate is also highlighted tabularly for its *** and Sherwood numbers calculated and compared to the like literature and found in good agreement.

关键词： Chemical reaction rotating disk nanoparticles velocity slip magnetic effect.

Numerical Study for Magnetohydrodynamic(MHD)Unsteady Maxwell Nanofluid Flow Impinging on Heated Stretching Sheet

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Computer Modeling in Engineering & Sciences 2022年第11期133卷 303-325页

作者： muhammad Shoaib arif muhammad Jhangir Yasir Nawaz Imran Abbas Kamaleldin Abodayeh Asad Ejaz Department of Mathematics and Sciences College of Humanities and SciencesPrince Sultan UniversityRiyadh11586Saudi Arabia Department of Mathematics Air UniversityIslamabad44000Pakistan

The numerous applications of Maxwell Nanofluid Stagnation Point Flow,such as those in production industries,the processing of polymers,compression,power generation,lubrication systems,food manufacturing and air conditioning,among other applications,require further research into the effects of various parameters on flow *** this paper,a study has been carried out for the heat andmass transfer of Maxwell nanofluid flow over the heated stretching sheet.A mathematical model with constitutive expressions is constructed in partial differential equations(PDEs)through obligatory basic conservation laws.A series of transformations are then used to take the system into an ordinary differential equation(ODE).The boundary conditions(BCs)are also treated similarly for transforming into first-order ordinary differential equations(ODEs).Then these ODEs are computed by using the Shooting *** effect of factors on the skin friction coefficient,the local Nusselt number,and the local Sherwood number are explored,and the results are displayed *** obtained results demonstrate that by increasing the values of the Maxwell and slip velocity parameters,velocity *** investigators tasked with addressing unresolved difficulties in the realm of enclosures used in industry and engineering,we thought this work would serve as a guide.

关键词： Maxwell fluid stagnation point flow heat and mass transfer thermal radiations shooting method

A Numerical Efficient Technique for the Solution of Susceptible Infected Recovered Epidemic Model

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Computer Modeling in Engineering & Sciences 2020年第8期124卷 477-491页

作者： muhammad Shoaib arif Ali Raza Kamaleldin Abodayeh muhammad Rafiq Mairaj Bibi Amna Nazeer Stochastic Analysis and Optimization Research Group Department of MathematicsAir UniversityPAF Complex E-9Islamabad44000Pakistan Department of Mathematics National College of Business Administration and EconomicsLahorePakistan Department of Mathematics and General Sciences Prince Sultan UniversityRiyadhSaudi Arabia Faculty of Engineering University of Central PunjabLahorePakistan Department of Mathematics Comsats University IslamabadIslamabadPakistan

The essential features of the nonlinear stochastic models are positivity,dynamical consistency and *** features have a significant role in different fields of computational biology and many *** aim of our paper,to achieve the comparison analysis of the stochastic susceptible,infected recovered epidemic *** stochastic modelling is a realistic way to study the dynamics of compartmental modelling as compared to deterministic *** effect of reproduction number has also observed in the stochastic susceptible,infected recovered epidemic *** comparison analysis,we developed some explicit stochastic techniques,but they are the time-dependent *** implicitly driven explicit technique has developed for the stochastic susceptible,infected recovered epidemic *** the support,some theorems and graphical illustration has ***,the time efficiency of this method makes it easy to find the solution of the stochastic *** comparison with other techniques shows the efficacy and reliability of the designed technique.

关键词： Epidemiolocal model stochastic differential equations stochastic techniques convergence analysis

Numerical Analysis of Stochastic Vector Borne Plant Disease Model

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Computers, Materials & Continua 2020年第4期63卷 65-83页

作者： Kamaledin Abodayeh Ali Raza muhammad Shoaib arif muhammad Rafiq Mairaj Bibi Rabia Fayyaz Department of Mathematics and General Sciences Prince Sultan UniversityRiyadhSaudi Arabia Stochastic Analysis&Optimization Research Group Department of MathematicsAir UniversityPAF Complex E-9Islamabad44000Pakistan Faculty of Engineering University of Central PunjabBathindaLahorePakistan Department of Mathematics Comsats UniversityChak Shahzad CampusIslamabadPakistan

We are associating the solutions of stochastic and deterministic vector borne plant disease model in this *** dynamics of plant model depends upon threshold number P^(∗).If P^(∗)1 explains the persistence of ***,standard numerical systems do not behave well in certain *** have been proposed a structure preserving stochastic non-standard finite difference system to analyze the behavior of *** system is dynamical consistent,positive and bounded as defined by Mickens.

关键词： Vector borne plant model stochastic numerical systems stability

An Abstractive Summarization Technique with Variable Length Keywords as per Document Diversity

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Computers, Materials & Continua 2021年第3期66卷 2409-2423页

作者： muhammad Yahya Saeed muhammad Awais muhammad Younas muhammad arif Shah Atif Khan M.Irfan Uddin Marwan Mahmoud Department of Software Engineering Government College UniversityFaisalabadFaisalabad38000Pakistan Department of IT and Computer Science Pak-Austria Fachhochschule Institute of Applied Sciences and TechnologyHaripurPakistan Department of Computer Science Islamia College PeshawarPeshawarPakistan Institute of Computing Kohat University of Science and TechnologyKohatPakistan Faculty of Applied Studies King Abdulaziz UniversityJeddahSaudi Arabia

Text Summarization is an essential area in text mining,which has procedures for text *** natural language processing,text summarization maps the documents to a representative set of descriptive ***,the objective of text extraction is to attain reduced expressive contents from the text *** summarization has two main areas such as abstractive,and extractive *** text summarization has further two approaches,in which the first approach applies the sentence score algorithm,and the second approach follows the word embedding *** such text extractions have limitations in providing the basic theme of the underlying *** this paper,we have employed text summarization by TF-IDF with PageRank keywords,sentence score algorithm,and Word2Vec word *** study compared these forms of the text summarizations with the actual text,by calculating cosine ***,TF-IDF based PageRank keywords are extracted from the other two extractive *** intersection over these three types of TD-IDF keywords to generate the more representative set of keywords for each text document is *** technique generates variable-length keywords as per document diversity instead of selecting fixedlength keywords for each *** form of abstractive summarization improves metadata similarity to the original text compared to all other forms of summarized *** also solves the issue of deciding the number of representative keywords for a specific text *** evaluate the technique,the study used a sample of more than eighteen hundred text *** abstractive summarization follows the principles of deep learning to create uniform similarity of extracted words with actual text and all other forms of text *** proposed technique provides a stable measure of similarity as compared to existing forms of text summarization.

关键词： Metadata page rank sentence score word2vec cosine similarity This