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Foliar spraying of aqueous garlic bulb extract stimulates growth and antioxidant enzyme activity in eggplant(Solanum melongena L.)

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Journal of Integrative Agriculture 2019年第5期18卷 1001-1013页

作者： muhammad ali CHENG Zhi-hui Sikandar Hayat Husain Ahmad muhammad Imran Ghani LIU Tao Department of Vegetable Sciences College of HorticultureNorthwest A&F University

Recently,botanical extracts are gaining popularity as biostimulants in vegetable *** present study,the effect of aqueous garlic bulb extract(AGE)was studied on the growth and physiology of eggplant grown in plastic *** was foliage sprayed with various frequencies,i.e.,0,S1(once),S2(twice)and S3(three times)at two independent growth stages,pre-and *** results showed that the treated plants exhibited stimulatory responses in growth and physiology in accord with the repetition of AGE spray and growth stages of the plants,respectively.A single foliage sprayed pre-transplant resulted in improved growth,i.e.,plant morphology and biomass,and enhanced antioxidants enzymes(superoxide dismutase,SOD;peroxidase,POD),photosynthesis and chlorophyll abundance observed at vegetative,first flowering and fruit setting stages,***,thrice application inhibited the plant growth and development and resulted in lipid peroxidation,i.e.,increased malondialdehyde(MDA)*** addition,the post-transplant application also showed growth stimulation and interestingly,an overall positive influence was observed with respect to the AGE application and no significant increase in the MDA content indicated the post-transplant seedlings responded *** findings demonstrate that AGE can act as a biostimulant to enhance the eggplant growth in plastic tunnel production.

关键词： aqueous garlic bulb extract biostimulants plant growth malondialdehyde Solanum melongena L.

Enhanced electrochemical and photocatalytic performance achieved through dual incorporation of SnO_(2)and WO_(3)nanoparticles into LDH layer fabricated on PEO-coated AZ31 Mg alloy

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Journal of Magnesium and Alloys 2024年第5期12卷 1880-1898页

作者： muhammad ali Khan Ananda Repycha Safira Mosab Kaseem Arash Fattah-alhosseini Corrosion and Electrochemistry Laboratory Department of Nanotechnology and Advanced Materials EngineeringSejong UniversitySeoul 05006Republic of Korea Department of Materials Engineering Faculty of EngineeringBu-Ali Sina UniversityHamedanIran

This study explores the potential of LDH flakes decorated with metallic oxide nanoparticles to function as both anti-corrosion barriers against chloride anions and heterogeneous photocatalysts for tetracycline degradation under visible *** process involves modifying the primarily MgO-based inorganic porous film by growing a MgFe LDH film,followed by the individual and dual incorporation of SnO_(2)and WO_(3)*** dual incorporation of these nanoparticles into the LDH matrix leads to synergistic interactions,effectively sealing pre-existing defects within LDH flakes and facilitating the in-situ formation of catalytic sites through oxidation and the induction of surface oxygen vacancy defects,which synergistically contribute to the enhancement of both electrochemical and photocatalytic *** enhanced electrochemical stability is reflected in a significant reduction in corrosion current density by 4 orders of magnitude compared to unmodified porous ***,the decorated film demonstrates sustained photocatalytic functionality,achieving significant degradation(95.5%)of tetracycline within two *** study presents a novel approach,highlighting the dual effectiveness of LDHs decorated by dual metal oxides as an anti-corrosive agent and photocatalyst,with promising implications for environmental remediation and wastewater purification.

关键词： Porous film LDH film Anti corrosive Photocatalysis Oxygen vacancy Tetracycline

Structure-Preserving Dynamics of Stochastic Epidemic Model with the Saturated Incidence Rate

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Computers, Materials & Continua 2020年第8期64卷 797-811页

作者： Wasfi Shatanawi muhammad Shoaib Arif ali Raza muhammad Rafiq Mairaj Bibi Javeria Nawaz Abbasi Department of Mathematics and General Sciences Prince Sultan UniversityRiyadhSaudi Arabia Department of Medical Research China Medical University HospitalChina Medical UniversityTaichung40402Taiwan Department of M-Commerce and Multimedia Applications Asia UniversityTaichung41354Taiwan Stochastic Analysis&Optimization Research Group Department of MathematicsAir UniversityPAF Complex E-9Islamabad44000Pakistan Faculty of Engineering University of Central PunjabLahorePakistan Department of Mathematics Comsats UniversityIslamabadPakistan

The structure-preserving features of the nonlinear stochastic models are positivity,dynamical consistency and *** features have a significant role in different fields of computational biology and many ***,the existing stochastic approaches in literature do not restore aforesaid structure-preserving features,particularly for the stochastic ***,these gaps should be occupied up in literature,by constructing the structure-preserving features preserving numerical *** writing aims to describe the structure-preserving dynamics of the stochastic *** have analysed the effect of reproduction number in stochastic modelling the same as described in the literature for deterministic *** usual explicit stochastic numerical approaches are *** have developed the implicitly driven explicit approach for the stochastic epidemic *** have proved that the newly developed approach is preserving the structural,dynamical properties as positivity,boundedness and dynamical ***,convergence analysis of a newly developed approach and graphically illustration is also presented.

关键词： Epidemic model stochastic numerical approaches convergence analysis

Cloud authorization： exploring techniques and approach towards effective access control framework

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Frontiers of Computer Science 2015年第2期9卷 297-321页

作者： Rahat MASOOD muhammad Awais SHIBLI Yumna GHAZI Ayesha KANWAL Arshad ali School of Electrical Engineering and Computer Science (SEECS) National University of Sciences and Technology (NUST) Islamabad - 44000 Pakistan

Despite the various attractive features that Cloud has to offer, the rate of Cloud migration is rather slow, pri- marily due to the serious security and privacy issues that exist in the paradigm. One of the main problems in this regard is that of authorization in the Cloud environment, which is the focus of our research. In this paper, we present a systematic analysis of the existing authorization solutions in Cloud and evaluate their effectiveness against well-established industrial standards that conform to the unique access control require- ments in the domain. Our analysis can benefit organizations by helping them decide the best authorization technique for deployment in Cloud; a case study along with simulation re- sults is also presented to illustrate the procedure of using our qualitative analysis for the selection of an appropriate tech- nique, as per Cloud consumer requirements. From the results of this evaluation, we derive the general shortcomings of the extant access control techniques that are keeping them from providing successful authorization and, therefore, widely adopted by the Cloud community. To that end, we enumer- ate the features an ideal access control mechanisms for the Cloud should have, and combine them to suggest the ultimate solution to this major security challenge - access control as a service （ACaaS） for the software as a service （SaaS） layer. We conclude that a meticulous research is needed to incorpo- rate the identified authorization features into a generic ACaaS framework that should be adequate for providing high level of extensibility and security by integrating multiple accesscontrol models.

关键词： authorization access control software as a ser-vice extensible access control markup language identity &access management cloud security

Sludge granulation and efficiency of phase separator in UASB reactor treating combined industrial effluent

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Journal of Environmental Sciences 2007年第5期19卷 553-558页

作者： Abdullah Yasar Nasir Ahmad muhammad Nawaz Chaudhry Aamir Amanat ali Khan Directorate of Research and Development University of the Punjab41-Kamran BlockAllama Iqbal TownLahore-Pakistan.

Sludge granulation and the effect of gas-liquid-solid separator （GLSS） design on the efficiency of upflow anaerobic sludge blanket （UASB） and upflow anaerobic sludge filter （UASF） reactors, operating at HRTs ranging from 3 to 12 h was investigated. VSS/TS ratio gradually increased in both the reactors with increasing sludge age （from 0.5 to more than 0.7 for UASB reactor and 0.012 to 0.043 for UASF reactor）. X-Ray diffraction analysis of the UASF sludge showed the presence of expanding clays revealing its additional absorption capability. Fuoraphyllite and albite precipitation related to excellular polymers of the microbial shell structure, showed the extended growth of microorganisms during sludge granulation. A gradual decrease （82%-69%） in COD removal with decreasing HRT was apparent in UASF reactor. In case of UASB reactor, this decrease was marginal because addition of GLSS device significantly improved （14%-20%） the overall efficiency of the UASB reactor. GLSS enhanced the efficiency of the UASB reactor by increasing the settleability of suspended particles and accelerating the coagulation of colloidal particles due to the velocity gradient.

关键词： sludge granulation gas-liquid-solid (GLS) phase separator UASB microbial growth

Novel Approach for a van der Pol Oscillator in the Continuous Time Domain

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Chinese Physics Letters 2011年第11期28卷 16-19页

作者： Junaid ali Khan muhammad Asif Zahoor Raja Ijaz Mansoor Qureshi Department of Electronic Engineering International Islamic UniversityIslamabadPakistan

We investigate the continuous time domain numerical treatment of a van der Pol oscillator,applying the trial solution as an artificial feed-forward neural network model containing unknown adjustable *** optimization of the network is performed by simulated annealing in an unsupervised *** proposed scheme is tested successfully by its application in both non-stiff and stiff *** reliability and effectiveness is validated through comprehensive statistical *** obtained results are in good agreement with the classical RK45 method.

关键词： artificial neural stiff

Application and comparison of kernel functions for linear parameter varying model approximation of nonlinear systems

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Applied Mathematics(A Journal of Chinese Universities) 2023年第1期38卷 58-77页

作者： Faisal Saleem Ahsan ali Inam-ul-hassan Shaikh muhammad Wasim Department of Measurements and Control Systems Silesian University of TechnologyGliwicePoland Department of Electrical Engineering University of Engineering and TechnologyTaxilaPakistan Department of Aeronautics and Astronautics Engineering Institute of Space TechnologyIslamabadPakistan

In this paper,a comparative study for kernel-PCA based linear parameter varying(LPV)model approximation of sufficiently nonlinear and reasonably practical systems is carried *** matrix inequalities(LMIs)to be solved in LPV controller design process increase exponentially with the increase in a number of scheduling *** kernel functions are used to obtain the approximate LPV model of highly coupled nonlinear *** error to norm ratio of original and approximate LPV models is introduced as a measure of accuracy of the approximate LPV *** examples conclude the effectiveness of kernel-PCA for LPV model approximation as with the identification of accurate approximate LPV model,computation complexity involved in LPV controller design is decreased exponentially.

关键词： kernel-PCA LMIs LPV error to norm ratio computational complexity and control design

Three-dimensional flow of Powell–Eyring nanofluid with heat and mass flux boundary conditions

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Chinese Physics B 2016年第7期25卷 261-268页

作者： Tasawar Hayat Ikram Ullah Taseer muhammad Ahmed Alsaedi Sabir ali Shehzad Department of Mathematics Quaid-I-Azam University Nonlinear Analysis and Applied Mathematics (NAAM) Research Group Department of Mathematics Faculty of ScienceKing Abdulaziz University Department of Mathematics Comsats Institute of Information Technology

This article investigates the three-dimensional flow of Powell–Eyring nanofluid with thermophoresis and Brownian motion effects. The energy equation is considered in the presence of thermal radiation. The heat and mass flux conditions are taken into account. Mathematical formulation is carried out through the boundary layer approach. The governing partial differential equations are transformed into the nonlinear ordinary differential equations through suitable variables. The resulting nonlinear ordinary differential equations have been solved for the series solutions. Effects of emerging physical parameters on the temperature and nanoparticles concentration are plotted and discussed. Numerical values of local Nusselt and Sherwood numbers are computed and examined.

关键词： three-dimensional flow Powell–Eyring fluid nanoparticles thermal radiation

Soft and flexible:core-shell ionic liquid resistive memory for electronic synapses

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Microsystems & Nanoengineering 2021年第5期7卷 119-128页

作者： muhammad Umair Khan Qazi muhammad Saqib Mahesh Y.Chougale Rayyan ali Shaukat Jungmin Kim Jinho Bae Department of Ocean System Engineering Jeju National University102 JejudaehakroJeju 63243Korea

The human brain is the most efficient computational and intelligent system,and researchers are trying to mimic the human brain using solid-state ***,the use of solid-state materials has a limitation due to the movement of ***,soft memory devices are receiving tremendous attention for smooth neurotransmission due to the ion concentration polarization *** paper proposes a core-shell soft ionic liquid(IL)-resistive memory device for electronic synapses using Cu/Ag@AgCI/Cu with multistate resistive *** presence of the Ag@AgCI core shell in the liquid electrolyte significantly helps to control the movement of Cu^(2+)ions,which results in multistate resistive switching *** core-shell IL soft memory device can open a gateway for electronic synapses.

关键词： mechanism gateway electronic