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A Reliable Stochastic Numerical Analysis for Typhoid Fever Incorporating With Protection Against Infection

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Computers, Materials & Continua 2019年第6期59卷 787-804页

作者： muhammad Shoaib arif Ali Raza muhammad Rafiq Mairaj Bibi Rabia Fayyaz Mehvish Naz Umer Javed Department of Mathematics Air UniversityPAF Complex E-9Islamabad44000Pakistan Faculty of Engineering University of Central PunjabLahore54500Pakistan Department of Mathematics Comsats UniversityChak Shahzad CampusIslamabad44000Pakistan Department of Electrical and Computer Engineering Comsats UniversityWah Campus47040IslambadPakistan

In this paper,a reliable stochastic numerical analysis for typhoid fever incorporating with protection against infection has been *** have compared the solutions of stochastic and deterministic typhoid fever *** has been shown that the stochastic typhoid fever model is more realistic as compared to the deterministic typhoid fever *** effect of threshold number T*hold in stochastic typhoid fever *** proposed framework of the stochastic non-standard finite difference scheme(SNSFD)preserves all dynamical properties like positivity,bounded-ness and dynamical consistency defined by Mickens,*** stochastic numerical simulation of the model showed that increase in protection leads to low disease prevalence in a population.

关键词： Typhoid fever stochastic differential equations euler maruyama scheme stochastic euler scheme stochastic runge-kutta scheme stochastic NSFD scheme

Construction of a Computational Scheme for the Fuzzy HIV/AIDS Epidemic Model with a Nonlinear Saturated Incidence Rate

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Computer Modeling in Engineering & Sciences 2024年第2期138卷 1405-1425页

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

This work aimed to construct an epidemic model with fuzzy *** the classical epidemic model doesnot elaborate on the successful interaction of susceptible and infective people,the constructed fuzzy epidemicmodel discusses the more detailed versions of the interactions between infective and susceptible ***-generation matrix approach is employed to find the reproduction number of a deterministic *** analysis and local stability analysis of the systemare also *** solving the fuzzy epidemic model,a numerical scheme is constructed which consists of three time *** numerical scheme has an advantage overthe existing forward Euler scheme for determining the conditions of getting the positive *** establishedscheme also has an advantage over existing non-standard finite difference methods in terms of order of *** stability of the scheme for the considered fuzzy model is also *** the plotted results,it can beobserved that susceptible people decay by rising interaction parameters.

关键词： Epidemic model fuzzy rate parameters next generation matrix local stability proposed numerical scheme

2D Carbon Fiber Reinforced High Density Polyethylene Multi-Layered Laminated Composite Panels:Structural,Mechanical,Thermal,and Morphological Profile

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Journal of Materials Science & Technology 2016年第10期32卷 1077-1082页

作者： Shahzad Maqsood Khan Nafisa Gull muhammad Azeem Munawar Atif Islam Saba Zia muhammad Shafiq Aneela Sabir Syed muhammad Awais muhammad arif Butt muhammad Taqi Zahid Butt Tahir Jamil Department of Polymer Engineering and Technology University of the PunjabLahore 54590Pakistan King Edward Medical University Lahore 54590Pakistan College of Engineering and Emerging Technologies University of the PunjabLahore 54590Pakistan

Carbon fiber reinforced high density polyethylene multi-layered laminated composite panels（HDPE/CF MLCP） with excellent in-plane properties along transverse direction have been formulated. Composite architectures with carbon fiber（CF） designed in 2D layout in conventional composites can alleviate their properties in thickness direction, but all attempts so far developed have achieved restrained success. Here,we have exposed an approach to the high strength composite challenge, without altering the 2D stack design on the basis of concept of fiber reinforced laminated composites that would provide enhanced mechanical and thermal properties along transverse direction. CF sheets allowed the buckling of adjoining plies in 2D MLCP. We fabricated 2D MLCP by stacking the alternative CF and HDPE layers under different loading conditions, which resulted in high strength composites. These plies of CF and HDPE served as unit cells for MLCP, with CF offering much-needed fracture toughness and hardness to these *** 2D HDPE/CF MLCP, we demonstrated noteworthy improvement in physical and chemical interaction between CF and HDPE, in-plane fracture strain, flexural strength（30.684 MPa）, bending modulus（7436.254 MPa）, thermal stability（40.94%）, and surface morphology, upon increasing the CF layers up to twenty, enabling these composites truly for high temperature and high strength applications.

关键词： Multi-layered composite panels Mechanical properties Thermal stability

Highly selective adsorption of rhenium by amyloid-like protein material

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Science China(Technological Sciences) 2024年第5期67卷 1417-1430页

作者： muhammad arif YANG QingMin KANWAL Aisha ZHAO Jian NAWAZ Mohsan REN Hao YANG Peng Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education Xi’an Key Laboratory of Polymeric Soft Matter International Joint Research Center on Functional Fiber and Soft Smart TextileSchool of Chemistry and Chemical EngineeringShaanxi Normal UniversityXi’an710119China School of Chemistry and Chemical Engineering Northwestern Polytechnical UniversityXi’an710072China

Rhenium separation from molybdenum in molybdenite minerals and waste leachate has become an emerging *** this challenge,we prepared a set of protein-based alkylamine/alkylammonium salts complexes as extractants for selective uptake of rhenium from molybdenum,where the protein component turned into the insoluble amyloid-like structure when its internal disulfide bonds were reduced,namely phase-transition *** them,the phase-transited lysozyme and methyletrioctyleammonium chloride complex(PTL-N263)exhibited the most efficient adsorption at the alkaline condition for the electrostatic interaction between negatively charged metal ions with positively charged center(R_(4)N^(+))in N263,where negatively charged protein residues hindered the ion exchange of Cl^(-)in N263 for larger size Mo species(Mo_(7)O_(24)^(6-))than smaller size Re species(ReO^(4-)).The adsorption follows the Freundlich model and pseudo-second-order kinetics,which exhibits toplevel adsorption performance with a maximum adsorption capacity of 124 mg/g and a separation factor(β_(Re/Mo))of 2.78×10^(3)for *** adsorption capacity per unit area(57.2 mg/(g m^(2)))is 1.6–41 times higher than previously reported adsorbents,and the cost for adsorbing 1 g of Re(VII)is$1.07,indicating its industrial *** adsorption strategy can be applied to separating Re from Mo in binary solutions and industrial wastewater with other competing ions.

关键词： amyloid phase-transited lysozyme selective adsorption rhenium waste leachate solution

Numerical Treatment for Stochastic Computer Virus Model

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Computer Modeling in Engineering & Sciences 2019年第8期120卷 445-465页

作者： Ali Raza muhammad Shoaib arif muhammad Rafiq Mairaj Bibi muhammad Naveed muhammad Usman Iqbal Zubair Butt Hafiza Anum Naseem Javeria Nawaz Abbasi Department of Mathematics Stochastic Analysis&Optimization Research GroupAir UniversityPAF Complex E-9IslamabadPakistan Faculty of Engineering University of Central Punjab LahorePakistan Department of Mathematics Comsats UniversityPark Road Chak Shahzad CampusIslamabadPakistan Faculty of Computing National College of Business Administration and Economics LahorePakistan

This writing is an attempt to explain a reliable numerical treatment for stochastic computer virus *** are comparing the solutions of stochastic and deterministic computer virus *** paper reveals that a stochastic computer virus paradigm is pragmatic in contrast to the deterministic computer virus *** of threshold number C^?hold in stochastic computer virus *** C^?1 shows virus persists in the computer ***,stochastic numerical methods fail to cope with large step sizes of *** suggested structure of the stochastic non-standard finite difference scheme(SNSFD)maintains all diverse characteristics such as dynamical consistency,boundedness and positivity as defined by *** numerical treatment for the stochastic computer virus model manifested that increasing the antivirus ability ultimates small virus dominance in a computer community.

关键词： Computer virus,euler maruyama scheme stochastic differential equations stochastic euler scheme stochastic runge-kutta scheme stochastic NSFD scheme stability

Numerical Simulations for Stochastic Computer Virus Propagation Model

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Computers, Materials & Continua 2020年第1期62卷 61-77页

作者： muhammad Shoaib arif Ali Raza muhammad Rafiq Mairaj Bibi Javeria Nawaz Abbasi Amna Nazeer Umer Javed Stochastic Analysis&Optimization Research Group Department of MathematicsAir UniversityPAF Complex E-9IslamabadPakistan Faculty of Engineering University of Central Punjab LahorePakistan Department of Mathematics Comsats UniversityChak Shahzad CampusIslamabadPakistan Department of Electrical and Computer Engineering Comsats UniversityWah CampusIslamabadPakistan

We are presenting the numerical simulations for the stochastic computer virus propagation model in this *** are comparing the solutions of stochastic and deterministic computer virus *** of a threshold number R0 hold in stochastic computer virus *** R_(0)1 shows virus rapidly spread in the computer ***,stochastic numerical techniques fail to cope with large step sizes of *** suggested structure of the stochastic non-standard finite difference technique can never violate the dynamical *** this basis,we can suggest a collection of strategies for removing virus’s propagation in the computer population.

关键词： Computer virus propagation model Stochastic modelling Stochastic processes Stochastic techniques Convergence analysis

Effects of arbuscular mycorrhizal fungi on carbon assimilation and ecological stoichiometry of maize under combined abiotic stresses

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Journal of Plant Ecology 2024年第2期17卷 74-88页

作者： Qiong Ran Songlin Zhang muhammad arif Xueting Yin Shanshan Chen Guangqian Ren School of Management Chongqing University of TechnologyChongqing 400054China Key Laboratory of Reservoir Aquatic Environment Chongqing Institute of Green and Intelligent TechnologyChinese Academy of SciencesChongqing 400714China Key Laboratory of Eco-environments in Three Gorges Reservoir Region(Ministry of Education) State Cultivation Base of Eco-agriculture for Southwest Mountainous LandSchool of Life SciencesSouthwest UniversityChongqing 400715China Institute of Environment and Ecology Academy of Environmental Health and Ecological SecuritySchool of the Environment and Safety EngineeringJiangsu UniversityZhenjiang 212013China

Arbuscular mycorrhizal fungi(AMF)enhance plant tolerance to abiotic stresses like salinity and improve crop ***,their effects are variable,and the underlying cause of such variation remains largely *** study aimed to assess how drought modifed the effect of AMF on plant resistance to high calcium-saline stress.A pot experiment was performed to examine how AMF inoculation affects the growth,photosynthetic activity,nutrient uptake and carbon(C),nitrogen(N)and phosphorus(P)stoichiometric ratio(C:N:P)of maize under high calcium stress and contrasting water *** results showed that high calcium stress signifcantly reduced mycorrhizal colonization,biomass accumulation,C assimilation rate and C:N stoichiometric ratio in plant ***,the adverse effects of calcium stress on photosynthesis were exacerbated under *** inoculation profoundly alleviated such reductions under drought and saline ***,it barely affected maize performance when subjected to calcium stress under well-watered ***,watering changed AMF impact on nutrient allocation in plant *** well-watered conditions,AMF stimulated P accumulation in roots and plant growth,but did not induce leaf P accumulation proportional to C and N,resulting in increased leaf C:P and N:P ratios under high calcium *** contrast,AMF decreased N content and the N:P ratio in leaves under ***,AMF inoculation improved maize resistance to calcium-salt stress through enhanced photosynthesis and modulation of nutrient stoichiometry,particularly under water defcit *** results highlighted the regulatory role of AMF in carbon assimilation and nutrient homeostasis under compound stresses,and provide signifcant guidance on the improvement of crop yield in saline and arid regions.

关键词： arbuscular mycorrhizal fungi compound abiotic stresses C:N:P stoichiometry induced systemic resistance calcium-salt stress

Regulating non-precious transition metal nitrides bifunctional electrocatalysts through surface/interface nanoengineering for air-cathodes of Zn-air batteries

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Green Energy & Environment 2022年第1期7卷 16-34页

作者： Qixing Du Yanmei Gong muhammad arif Khan Daixin Ye Jianhui Fang Hongbin Zhao Jiujun Zhang Department of Chemistry&Institute for Sustainable Energy College of SciencesShanghai UniversityShanghai200444China Department of Physics College of SciencesShanghai UniversityShanghai200444China School of Material Science and Engineering Shanghai UniversityShanghai200444China

Zn-air batteries(ZABs),especially the secondary batteries,have engrossed a great interest because of its high specific energy,economical and high ***,due to the insufficient activity and stability of bifunctional electrocatalysts for air-cathode oxygen reduction reaction(ORR)and oxygen evolution reaction(OER)processes,the practical application of rechargeable ZABs is seriously *** the effort of developing high active,stable and cost-effective electrocatalysts,transition metal nitrides(TMNs)have been regarded as the candidates due to their high conductivity,strong corrosion-resistance,and bifunctional catalytic *** this paper,the research progress in TMNs-based material as ORR and OER electrocatalysts for ZABs is discussed with respect to their synthesis,chemical/physical characterization,and performance validation/*** surface/interface nanoengineering strategies such as defect engineering,support binding,heteroatom introduction,crystal plane orientation,interface construction and small size effect,the physical and chemical properties of TMNs-based electrocatalysts are emphasized with respect to their structures/morphologies,composition,electrical conductivity,specific surface area,chemical stability and corrosion *** challenges of TMNs-based materials as bifunctional air-cathode electrocatalysts in practical application are evaluated,and numerous research guidelines to solve these problems are put forward for facilitating further research and development.

关键词： Surface/interface nanoengineering Non-precious transition metal nitrides Zn-air batteries Oxygen reduction reaction Oxygen evolution reaction

An Intelligent Graph Edit Distance-Based Approach for Finding Business Process Similarities

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Computers, Materials & Continua 2021年第12期69卷 3603-3618页

作者： Abid Sohail Ammar Haseeb Mobashar Rehman Dhanapal Durai Dominic muhammad arif Butt Department of Computer Science COMSATS University IslamabadLahorePakistan Faculty of Information and Communication Technology Universiti Tunku Abdul RahmanKamparPerakMalaysia Universiti Teknologi PETRONAS Bandar Seri IskandarTronoh PerakMalaysia Punjab University College of Information Technology University of the PunjabLahorePakistan

There are numerous application areas of computing similarity between process *** includes finding similar models from a repository,controlling redundancy of process models,and finding corresponding activities between a pair of process *** similarity between two process models is computed based on their similarity between labels,structures,and execution *** attempts have been made to develop similarity techniques between activity labels,as well as their execution ***,a notable problem with the process model similarity is that two process models can also be similar if there is a structural variation between ***,neither a benchmark dataset exists for the structural similarity between process models nor there exist an effective technique to compute structural *** that end,we have developed a large collection of process models in which structural changes are handcrafted while preserving the semantics of the ***,we have used a machine learning-based approach to compute the similarity between a pair of process models having structural and label ***,we have evaluated the proposed approach using our generated collection of process models.

关键词： Machine learning intelligent data management similarities of process models structural metrics dataset graph edit distance process matching artificial intelligence