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Optical solitons and modulation instability analysis of the(1+1)-dimensional coupled nonlinear Schrodinger equation

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Communications in Theoretical Physics 2020年第2期72卷 17-22页

作者： Tukur Abdulkadir sulaiman Hasan Bulut Firat University Faculty of ScienceElazigTurkey Federal University DutseFaculty of ScienceJigawaNigeria Final International University Faculty of EducationKyreniaCyprus

This study successfully reveals the dark,singular solitons,periodic wave and singular periodic wave solutions of the(1+1)-dimensional coupled nonlinear Schr?dinger equation by using the extended rational sine-cosine and rational sinh-cosh *** modulation instability analysis of the governing model is *** using the suitable values of the parameters involved,the 2-,3-dimensional and the contour graphs of some of the reported solutions are plotted.

关键词： the coupled nonlinear Schrodinger’s equation optical soliton modulation instability

Hybrid firefly algorithm-neural network for battery remaining useful life estimation

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Clean Energy 2024年第5期8卷 157-166页

作者： Zuriani Mustaffa Mohd Herwan sulaiman Faculty of Computing Universiti Malaysia Pahang Al-Sultan Abdullah(UMPSA)26600 Pekan PahangMalaysia Faculty of Electrical&Electronics Engineering Technology Universiti Malaysia Pahang Al-Sultan Abdullah(UMPSA)26600 Pekan PahangMalaysia

Accurately estimating the remaining useful life(RUL)of batteries is crucial for optimizing maintenance,preventing failures,and enhancing reliability,thereby saving costs and *** study introduces a hybrid approach for estimating the RUL of a battery based on the firefly algorithm–neural network(FA–NN)model,in which the FA is employed as an optimizer to fine-tune the network weights and hidden layer biases in the *** performance of the FA–NN is comprehensively compared against two hybrid models,namely the harmony search algorithm(HSA)–NN and cultural algorithm(CA)–NN,as well as a single model,namely the autoregressive integrated moving average(ARIMA).The comparative analysis is based mean absolute error(MAE)and root mean squared error(RMSE).Findings reveal that the FA–NN outperforms the HSA–NN,CA–NN,and ARIMA in both employed metrics,demonstrating su-perior predictive capabilities for estimating the RUL of a ***,the FA–NN achieved a MAE of 2.5371 and a RMSE of 2.9488 compared with the HSA–NN with a MAE of 22.0583 and RMSE of 34.5154,the CA–NN with a MAE of 9.1189 and RMSE of 22.4646,and the ARIMA with a MAE of 494.6275 and RMSE of ***,the FA–NN exhibits significantly smaller maximum errors at 34.3737 compared with the HSA–NN at 490.3125,the CA–NN at 827.0163,and the ARIMA at 1.16e+03,further emphasizing its robust performance in minimizing prediction *** study offers important insights into battery health management,showing that the proposed method is a promising solution for precise RUL predictions.

关键词： battery remaining useful life firefly algorithm neural networks optimization

Actuator Fault Monitoring and Fault Tolerant Control in Distillation Columns

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International Journal of Automation and computing 2017年第1期14卷 80-92页

作者： sulaiman Ayobami Lawal Jie Zhang School of Chemical Engineering and Advanced Materials Newcastle University Department of Chemical Engineering University of Lagos

This paper presents, from a practical viewpoint accommodation in distillation columns. Addressing faults in an investigation of real-time actuator fault detection, propagation and industrial processes, coupled with the growing demand for higher performance, improved safety and reliability necessitates implementation of less complex alternative control strategies in the events of malfunctions in actuators, sensors and or other system components. This work demonstrates frugality in the design and implementation of fault tolerant control system by integrating fault detection and diagnosis techniques with simple active restructurable feedback controllers and with backup feedback signals and switchable reference points to accommodate actuator fault in distillation columns based on a priori assessed control structures. A multivariate statistical process monitoring based fault detection and diagnosis technique through dynamic principal components analysis is integrated with one-point control or alternative control structure for prompt and effective fault detection, isolation and accommodation. The work also investigates effects of disturbances on fault propagation and detection. Specifically, the reflux and vapor boil-up control strategy used for a binary distillation column during normal operation is switched to one point control of the more valued product by utilizing the remaining healthy actuator. The proposed approach was implemented on two distillation processes： a simulated methanol-water separation column and the benchmark Shell standard heavy oil fractionation process to assess its effectiveness.

关键词： Dynamic principal component analysis fault detection and diagnosis distillation column fault tolerant controller inferential control.

Control of seed born mycobiota associated with Glycine max *** by a combination of traditional medicinal plants extracts

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BIOCELL 2021年第5期45卷 1403-1411页

作者： sulaiman A.AL YOUSEF Clinical Laboratories Sciences Department College of Applied Medical ScienceUniversity of Hafr AlbatinHafr Albatin31991Saudi Arabia

Seeds from soybean collected from different commercial markets were surveyed for seed-borne *** fungal colonies were isolated all over three monthly isolations constituting twenty-two fungal *** isolated fungi were belonging to the genera:Alternaria,Aspergillus,Cephalosporium,Chaetomium,Cladosporium,Colletotrichum,Curvularia,Fusarium,Macrophomina,Mucor,Penicillium,Rhizoctonia,Rhizopus,Sclerotium,Stemphylium,and *** of the antifungal activity of four ethanolic extracts of clove,cinnamon,garlic,and mint was carried out against the most common fungal species(Aspergillus flavus,***,Fusarium solani,***,and ***),which significantly reduced the growth of tested *** extract recorded the highest antimicrobial potentiality against the seed-borne fungal species,followed by cinnamon,garlic,and *** and cinnamon achieved minimum inhibitory concentration(MIC)values less than that of the reference antifungal drug ***,garlic and mint recorded MIC values equal to or higher than that of control.A combination of clove and cinnamon,clove and garlic,cinnamon and garlic,cinnamon,and mint extracts increased the mean relative activity *** decreased MIC values below their values when used individually;this indicated synergistic interaction between the two extracts.A combination of clove with mint and garlic with mint recorded a decrease in the percentage of mean relative activity and an increase in MIC values than their values when used individually,indicating antagonistic interaction between them.

关键词： Soybean Seed-borne Mycoflora Biocontrol Antimycotoxigenic MIC

Modification of Optical Band Gap and Surface Morphology of NiTsPc Thin Films

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Chinese Physics Letters 2012年第12期29卷 156-160页

作者： Muhamad Saipul Fakir Zubair Ahmad Khaulah sulaiman Low Dimensional Materials Research Centre Department of PhysicsFaculty of ScienceUniversity of Malaya50603 Kuala LumpurMalaysia

We demonstrate the effects of solvent treatment on the optical band gap and surface morphology of nickel(ii)phthalocyanine tetrasulfonic acid tetrasodium salt(NiTsPc)thin *** optical band gap and surface morphology modifications are carried out by immersing the films in chloroform for different immersion times until the optimized time(60 min)is found.A Tauc plot is used to calculate the optical energy gaps,which are found to be about 2.70-2.85 eV and 1.43-1.50 eV,in the B and Q bands *** topography shows that more granular structures have been formed upon the optimized immersion ***(PL)quenching occurs in the solvent-treated NiTsPc film incorporated with a tris(8-hydroxyquinolinato)aluminium(Alq3)*** PL quenching indicates that the charge carrier transport is more efficient at the interface between NiTsPc/Alq3 as a result of the solvent treatment.

关键词： immersion quenching nickel

New lump, lump-kink, breather waves and other interaction solutions to the (3+1)-dimensional soliton equation

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Communications in Theoretical Physics 2020年第8期72卷 43-49页

作者： Tukur Abdulkadir sulaiman Abdullahi Yusuf Abdon Atangana Department of Computer Engineering Biruni UniversityIstanbulTurkey Department of Mathematics Federal University DutseJigawaNigeria Institute for Groundwater Studies University of the Free StateBloemfonteinSouth Africa

This study investigates the (3+1)-dimensional soliton equation via the Hirota bilinear approach and symbolic computations. We successfully construct some new lump, lump-kink, breather wave, lump periodic, and some other new interaction solutions. All the reported solutions are verified by inserting them into the original equation with the help of the Wolfram Mathematica package. The solution’s visual characteristics are graphically represented in order to shed more light on the results obtained. The findings obtained are useful in understanding the basic nonlinear fluid dynamic scenarios as well as the dynamics of computational physics and engineering sciences in the related nonlinear higher dimensional wave fields.

关键词： (3+1)-dimensional soliton equation Hirota method lump solution breather waves

Heavy metals accumulation in suburban roadside plants of a tropical area(Jengka,Malaysia)

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Ecological Processes 2018年第1期7卷 312-322页

作者： Fazrul Razman sulaiman Huda Asilah Hamzah Faculty of Applied Sciences Universiti Teknologi MARA Cawangan Pahang26400 Bandar Tun Abdul RazakJengkaPahangMalaysia

Introduction:This study aims to examine the uptake and translocation of Cd,Cu,Fe,and Pb in different parts of three roadside plant species grown in the semi-urban of Jengka,Pahang,***:Heavy metal concentrations were determined from various parts of Athyrium esculentum(AE),Chromolaena odorata(CO),and Lantana camara(LC).The bioconcentration factor(BCF)and translocation ratio of heavy metals from soils to plants were ***:Fe showed the highest metal concentration determined(1).The translocation ratio of four metals suggests that absorption of the three plants had the rank:root>stem>***:The metals in the root zone transported weakly to the stem but more strongly mobilized to leaves when available in the stems.A comprehensive study of heavy metal concentration in a variety of roadside plants in the tropical area should be done in the future ensuring the precise source and translocation mechanisms.

关键词： Bioconcentration factor Metals Roadside plants Translocation ratio Semi-urban

Evaluation of current and temperature effects on optical performance of InGaAlP thin-film SMD LED mounted on different substrate packages

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Chinese Physics B 2017年第7期26卷 454-460页

作者： Muna E.Raypah Mutharasu Devarajan Fauziah sulaiman School of Physics Universiti Sains Malaysia (USM)

The relationship between the photometric, electric, and thermal parameters of light-emitting diodes（LEDs） is important for optimizing the LED illumination design. Indium gallium aluminium phosphide（InGaAlP）-based thin-film surface-mounted device（SMD） LEDs have attracted wide attention in research and development due to their portability and miniaturization. We report the optical characterization of InGaAlP thin-film SMD LED mounted on FR4, 2 W, and 5 W aluminum（Al） packages. The optical and thermal parameters of LED are determined at different injection currents and ambient temperatures by combining the T3ster（thermal transient tester） and TeraL ED（thermal and radiometric characterization of power LEDs） systems. Analysis shows that LED on a 5 W Al substrate package obtains the highest luminous and optical efficiency.

关键词： light-emitting diodes(LEDs) surface-mounted device(SMD) InGaAlP luminous efficiency

Characteristics and properties of goat meat gels and balls as affected by setting conditions

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Food Quality and Safety 2019年第2期3卷 129-136页

作者： sulaiman Mad-Ali Soottawat Benjakul Department of Food Technology Faculty of Agro-IndustryPrince of Songkla UniversityHat YaiSongkhlaThailand

The properties of goat meat gels without and with 120 mmol/kg CaCl_(2)as influenced by setting time(30-120 min)at 60℃ were studied.A gel set for 60 min with subsequent cooking for 20 min in the presence of CaCl_(2)had the highest breaking force and deformation with coincidentally lowest expressible moisture content(P0.05).A decrease in the myosin heavy-chain band intensity was noticeable when CaCl_(2)was incorporated,suggesting increased protein *** setting time increased,the L*values increased with varying a*values,whereas no differences in b*values of gels were found,regardless of CaCl_(2)addition(P>0.05).The gel containing CaCl_(2)with setting time of 60 min had the highest hardness,cohesiveness,gumminess,and chewiness(P<0.05)and showed the compact network with high interconnection between *** meat balls prepared under aforementioned conditions had higher texture and overall likeness scores,compared with the control(P<0.05).Therefore,prior setting at 60℃ for 60 min in the presence of CaCl_(2)is recommended for the manufacture of goat meat balls with improved quality.

关键词： characteristic gel goat meat setting meat ball calcium chloride