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Study of Fractional Order Dynamical System of Viral Infection Disease under Piecewise Derivative

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Computer Modeling in Engineering & Sciences 2023年第7期136卷 921-941页

作者： Kamal shah Hafsa Naz Thabet Abdeljawad Bahaaeldin Abdalla Department of Mathematics and Sciences Prince Sultan UniversityP.O.Box 66833Riyadh11586Saudi Arabia Department of Mathematics University of MalakandChakdara Dir(L)Khyber Pakhtunkhwa18000Pakistan Department of Medical Research China Medical UniversityTaichung40402Taiwan

This research aims to understand the fractional order dynamics of the deadly Nipah virus(NiV)*** focus on using piecewise derivatives in the context of classical and singular kernels of power operators in the Caputo sense to investigate the crossover behavior of the considered dynamical *** establish some qualitative results about the existence and uniqueness of the solution to the proposed *** utilizing the Newtonian polynomials interpolation technique,we recall a powerful algorithm to interpret the numerical findings for the aforesaid ***,we remark that the said viral infection is caused by an RNA type virus which can transmit from animals and also from an infected person to *** bats which are also known as flying foxes are one of the sources of transmission of NiV *** in this work,we investigate its transmission mechanism through some new concepts of fractional calculus for further analysis and *** present the approximate results for different compartments using different fractional *** using the piecewise derivative concept,we detect the crossover ormulti-steps behavior in the transmission dynamics of the mentioned ***,the considered form of the derivative is used to deal with problems exhibiting crossover behaviors.

关键词： NiV disease fractional calculus piecewise derivative qualitative results newton polynomial RNA virus

A Robust Emergency Messages Routing Scheme for Urban VANETs

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Computers, Materials & Continua 2022年第8期72卷 2617-2632页

作者： Mumtaz Ali shah Farrukh Zeeshan Khan Ghulam Abbas Department of Computer Science University of Engineering and TechnologyTaxilaPakistan Telecommunications and Networking Research Center GIK Institute of Engineering Sciences and TechnologyTopi23640Pakistan

Vehicular ad-hoc networks(VANETs)play an essential role in enhancing transport infrastructure by making vehicles intelligent and proficient in preventing traffic ***-based greedy protocols pick the next route vehicle for transmitting emergency messages(EMs)depending upon the present location of adjacent vehicles towards sink vehicles by using an optimal uni-directional road traffic ***,such protocols suffer performance degradation by ignoring the moving directions of vehicles in bi-directional road traffic where topological changes happen *** to the high number of vehicles,it is essential to broadcast EMs to all vehicles to prevent traffic delays and collisions.A cluster-based EM transmitting technique is proposed in this *** urban VANETs,this paper pioneers the clustering of bi-directional road traffic for robust and efficient routing of *** this regard,this paper introduces a routing protocol,namely,the bi-directional urban routing protocol(BURP).In addition to the paths and relative locations of vehicles,BURP takes account of the distance parameter by using the Hamming distance function to determine the direction ofmotion of vehicles and communicates EMs through the cluster head(CH).Amodified k-medoids algorithm is presented for the clustering of bi-directional road traffic.A median method is presented for selecting CH to ensure the longrunning of a *** results show that BURP provides enhanced throughput,a maximized packet delivery ratio,low energy consumption,and network delay relative to eminent routing protocols.

关键词： Vehicular ad hoc networks bi-directional road traffic routing protocol emergency message broadcasting direction-based greedy forwarding

An Energy-Efficient 12b 2.56 MS/s SAR ADC Using Successive Scaling of Reference Voltages

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Computers, Materials & Continua 2022年第7期72卷 2127-2139页

作者： Hojin Kang Syed Asmat Ali shah HyungWon Kim Department of Electronics Engineering College of Electrical and Computer EngineeringChungbuk National UniversityCheongju28644Korea Department of Electrical and Computer Engineering COMSATS University IslamabadAbbottabad CampusAbbottabad22060Pakistan

This paper presents an energy efficient architecture for successive approximation register(SAR)analog to digital converter(ADC).SAR ADCs with a capacitor array structure have been widely used because of its simple architecture and relatively high ***,conventional SAR ADCs consume relatively high energy due to the large number of capacitors used in the capacitor array and their sizes scaled up along with the number of *** proposed architecture reduces the energy consumption as well as the capacitor size by employing a new array architecture that scales down the reference voltages instead of scaling up the capacitor *** proposed 12-bit SAR ADC is implemented in Complementary Metal Oxide Semiconductor(CMOS)0.13 um library using Cadence Virtuoso design *** results and mathematical model demonstrate the overall energy savings of up to 97.3%compared with conventional SAR ADC,67%compared with the SAR ADC with split capacitor,and 35%compared with the resistor and capacitor(R&C)Hybrid SAR *** ADC achieves an effective number of bits(ENOB)of 11.27 bits and consumes 61.7 uW at sampling rate of 2.56 MS/s,offering an energy consumption of 9.8 fJ per conversion *** proposed SAR ADC offers 95.5%reduction in chip core area compared to conventional architecture,while occupying an active area of 0.088 mm2.

关键词： Low voltage low power successive approximation register analog to digital converter switching energy

Influence of Cu doping in Magnesium Hydroxide Nanoparticles for Bandgap Engineering

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Journal of Wuhan University of Technology(Materials Science) 2023年第3期38卷 485-489页

作者： SYED Masood Raza S NASEEM shah ADEEL Tahir YASMEEN Bibi Department of Physics Federal Urdu University of ArtsScience&TechnologyKarachiPakistan Department of Chemistry Federal Urdu University of ArtsScience&TechnologyKarachiPakistan

Cu doped Mg(OH)_(2) nanoparticles were synthesized with varying concentrations from 0 to 10%by a chemical synthesis technique of coprecipitation.X-rays diffraction (XRD) of the samples confirms that all the samples acquire the hexagonal crystal *** results indicated the solubility limit of dopant in the host material and the secondary phase of CuO was observed beyond 3%Cu doping in Mg(OH)_(2).The reduction in the size of nanoparticles was observed from 166 to 103 nm for Mg(OH)_(2) and 10% Cu doped Mg(OH)_(2)samples,*** shift in absorption spectra exhibited the systematical enhancement in optical bandgap from 5.25 to 6.085 eV.A good correlation was observed between the bandgap energy and crystallite size of the nanocrystals which confirmed the size induced effect in the *** transformation in the sample morphology was observed from irregular spherical particles to sepals like shapes with increasing the Cu concentration in the host *** energy dispersive X-Ray (EDX) analysis confirmed the purity of mass percentage composition of the elements present in the samples.

关键词： Cu doped Mg(OH)_(2) nanoparticles phase purity optical band gap morphologies

Small interfering RNAs based therapies for intracerebral hemorrhage: challenges and progress in drug delivery systems

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Neural Regeneration Research 2022年第8期17卷 1717-1725页

作者： Daniyah A.Almarghalani Sai H.S.Boddu Mohammad Ali Akhila Kondaka Devin Ta Rayyan A.shah Zahoor A.shah Department of Pharmacology and Experimental Therapeutics College of Pharmacy and Pharmaceutical SciencesUniversity of ToledoToledoOHUSA Department of Medicinal and Biological Chemistry College of Pharmacy and Pharmaceutical SciencesUniversity of ToledoToledoOHUSA Department of Pharmaceutical Sciences College of Pharmacy and Health SciencesAjman UniversityAjmanUnited Arab Emirates

Intracerebral hemorrhage(ICH)is a subtype of stroke associated with higher rates of ***,no effective drug treatment is available for *** molecular pathways following ICH are complicated and *** acid therapeutics such as gene knockdown by small interfering RNAs(siRNAs)have been developed in recent years to modulate ICH’s destructive pathways and mitigate its ***,siRNAs delivery to the central nervous system is challenging and faces many *** barriers to systemic delivery of siRNA limit the use of naked siRNA;therefore,siRNA-vectors developed to protect and deliver these therapies into the specific-target areas of the brain,or cell types seem quite *** delivery of siRNA via nanoparticles emerged as a viable and effective alternative therapeutic tool for central nervous system-related *** review discusses the obstacles to siRNA delivery,including the advantages and disadvantages of viral and nonviral ***,we provide a comprehensive overview of recent progress in nanotherapeutics areas,primarily focusing on the delivery system of siRNA for ICH treatment.

关键词： intracerebral hemorrhage lipid-based nanoparticle nanoparticles nanotechnology nonviral vectors peptide-mediated nanoparticle polymer-based nanoparticle siRNA therapeutics siRNA-barriers viral vectors

Recent advances and emerging trends of rare-earth-ion doped spectral conversion nanomaterials in perovskite solar cells

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Journal of Rare Earths 2022年第11期40卷 1651-1667,I0001页

作者： Syed Afaq Ali shah Muhammad Hassan Sayyad Jinghua Sun Zhongyi Guo School of Electrical Engineering&Intelligentization Dongguan University of TechnologyDongguan 523808China Advanced Photovoltaic Research Labs(APRL) Faculty of Engineering SciencesGhulam Ishaq Khan Institute of Engineering Sciences and TechnologyTopiDistrictSwabiKhyberPakhtunkhwa23640Pakistan School of Computer and Information Hefei University of TechnologyHefei 2300o9China

Organic-inorganic lead halide based perovskite solar cells(PSCs)have attracted unprecedented research interest over last *** high performance,combined with merits of low fabrication costs and ease of synthesis make PSCs promising alternate to state of the art silicon(Si)based solar *** r,some inherent shortcomings of PSCs are hindering their market dominance over conventional photovoltaic technologies such as transmission loss of sub-bandgap photons,poor stability and hysteresis ***,use of rare earth(RE)ions doped nanomaterials in PSCs,has been identified as an effective means to address the aforementioned issues by expanding the range of absorption spectra minimizing the non-absorption loss of solar photons,enhancing light scattering and improving operational *** article reviews the recent progress in doping rare-earth(RE)ions in the building blocks of PSCs such as semiconductor electrodes and photoactive perovskite layers,and its use as a separate spectral conversion layer in *** effect of size,shape,constitution and concentration of RE-nanoparticles on the overall performance and device stability will be analyzed in ***,we provide an outlook on the opportunities this newly developed field offers and the critical challenges faced in rationally and effectively using RE-ion-doped nanomaterials in PSCs for better operational stability and enhanced performance.

关键词： Efficiency Electron transport layer Photovoltaics Rare-earth(RE) Perovskite solar cells Up/down conversion

A comprehensive review of approaches to detect fatigue using machine learning techniques

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Chronic Diseases and Translational Medicine 2022年第1期8卷 26-35页

作者： Rohit Hooda Vedant Joshi Manan shah Gandhinagar Institute of Technology Gujarat Technological UniversityGandhinagarGujaratIndia LJ Institute of Engineering and Technology Gujarat Technological UniversityAhmedabadGujaratIndia Department of Chemical Engineering School of TechnologyPandit Deendayal Energy UniversityGandhinagarGujaratIndia

In the past decades,there have been numerous advancements in the field of *** has led to many scientific breakthroughs in the field of medical *** this,rapidly transforming world we are having a difficult time and the problem of fatigue is becoming ***,this study aimed to understand what is fatigue,its repercussions,and techniques to detect it using machine learning(ML)*** paper introduces,discusses methods and recent advancements in the field of fatigue ***,we categorized the methods that can be used to detect fatigue into four diverse groups,that is,mathematical models,rule-based implementation,ML,and deep *** study presents,compares,and contrasts various algorithms to find the most promising approach that can be used for the detection of ***,the paper discusses the possible areas for improvement.

关键词： deep learning driver monitoring fatigue detection healthcare machine learning

Type-2 fuzzy logic applications designed for active parameter adaptation in metaheuristic algorithm for fuzzy fault-tolerant controller

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International Journal of Intelligent Computing and Cybernetics 2023年第2期16卷 198-222页

作者： Himanshukumar R.Patel Vipul A.shah Department of Instrumentation and Control Dharmsinh Desai UniversityNadiadIndia

Purpose-In recent times,fuzzy logic is gaining more and more attention,and this is because of the capability of understanding the functioning of the system as per human knowledge-based *** main contribution of the work is dynamically adapting the important parameters throughout the execution of the flower pollination algorithm(FPA)using concepts of fuzzy *** adapting the main parameters of the metaheuristics,the performance and accuracy of the metaheuristic have been improving in a varied range of ***/methodology/approach-The fuzzy logic-based parameter adaptation in the FPA is *** addition,type2 fuzzy logic is used to design fuzzy inference system for dynamic parameter adaptation in metaheuristics,which can help in eliminating uncertainty and hence offers an attractive improvement in dynamic parameter adaption in metaheuristic method,and,in reality,the effectiveness of the interval type2 fuzzy inference system(IT2 FIS)has shown to provide improved results as matched to type-1 fuzzy inference system(T1 FIS)in some latest ***-One case study is considered for testing the proposed approach in a fault tolerant control problem without faults and with partial loss of effectiveness of main actuator fault with abrupt and incipient *** comparison between the type-1 fuzzy FPA and interval type-2 fuzzy FPA is presented using statitical analysis which validates the advantages of the interval type2 fuzzy *** statistical Z-test is presented for comparison of efficiency between two fuzzy variants of the FPA optimization ***/value-The main contribution of the work is a dynamical adaptation of the important parameters throughout the execution of the flower pollination optimization algorithm using concepts of type2 fuzzy *** adapting the main parameters of the metaheuristics,the performance and accuracy of the metaheuristic have been improving in a varied range of applications.

关键词： Interval Type-2 fuzzy logic Flower pollination algorithm Fuzzy fault tolerant controller

Melting Characteristics of a Phase Change Material Mixed with Nano Particles of Cobalt Oxide Bounded in a Trapezoidal Structure

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Computer Modeling in Engineering & Sciences 2022年第1期130卷 255-268页

作者： Waris Ali Asif Ali Shaikh Feroz shah Sajjad Hussain Department of Basic Sciences and Related Studies Mehran University of Engineering and TechnologyJamshoroPakistan School of Mechanical and Aerospace Engineering Nanyang Technological UniversitySingapore Department of Mathematics Govt Postgraduate College LayyahPunjabPakistan

A novel trapezoidal design for storage of heat energy through melting of phase-change material(PCM)is *** heat thermal energy storage system(LHTES)is a promising option to diminish mis-match between energy consumption and *** this purpose,Paraffin:Rubitherm-35(RT35)material is successively melted in aluminum structure which is heated from one side and the other sides are kept *** of PCM is observed experimentally and melt fronts are photographed for various time *** fluid-solid module in COMSOL Multiphysics 5.4 has been *** transient heat conduction with enthalpy function is *** are carried out for enhancement of thermal conductivity through addition of nano-entities of cobalt oxide *** time is notably reduced with inclusion of nano-entities to enhance thermal *** time spans for melt start and total melt in case of pure PCM are 375 and 4500(s)respectively whereas for the nano mix case,these are 150 and 3000 *** 33%shorter time length is noticed for charging of the PCM trapezoidal matrix with nano entities of Co3O4 *** results fromsimulation and lab observations depict similar patterns and are in quite close comparison.

关键词： Trapezoidal enclosure nano entities heat transfer phase change material COMSOL multiphysics 5.4 numerical simulation