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Analytical solutions fractional order partial differential equations ar.s.ng in fluid dynamics

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Applied Mathematics(A Journal of Chinese Universities) 2024年第3期39卷 458-468页

作者： sidheswar Behera Jasvinder singh Pal Virdi Department of Physics Veer Surendra Sai University of TechnologyOdishaIndia

This article describes the solution procedure of the fractional Pade-Ⅱ equation and generalized Zakharov equation(GsEs)using the sine-cosine ***-Ⅱ is an important nonlinear wave equation modeling unidirectional propagation of long-wave in dispersive media and GsEs are used to model the interaction between one-dimensional high,and low-frequency *** of trigonometric and hyperbolic function solutions in fractional calculus are *** simulations of the numerical solutions are flaunted by MATLAB.

关键词： the sine-cosine method He's fractional derivative analytical solution fractional Pade-Ⅱequation fractional generalized Zakharov equation

Nonlinear Coupling of Kinetic Alfvén Waves and Ion Acoustic Waves in the Inner Heliosphere

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r.s.arch in Astronomy and Astrophysics 2024年第10期24卷 141-158页

作者： Mani K.Chettri Vivek shrivastav rupak Mukherjee Nidhi Gaur r.P.sharma Hemam D.singh Department of Physics Sikkim UniversityGangtokSikkimIndia DAV Public school Sector 14GurugramHaryanaIndia Plasma simulation Laboratory Department of Energy Science and EngineeringIndian Institute of Technology DelhiDelhiIndia

We study the nonlinear coupling of kinetic Alfvén waves with ion acoustic waves applicable to the Earth’s radiation belt and near.s.n streamer belt solar wind using dynamical equations in the form of modified Zakharov *** simulations show the formation of magnetic field filamentary structur.s.associated with density humps and dips which become turbulent at later times,redistributing the energy to higher *** magnetic power.s.ectra exhibit an inertial range Kolmogorov-like spectral index value of-5/3 for k_(⊥)ρ_(i)steeper dissipation range spectra with indices~-3 for the radiation belt case and~-4 for the nearsun streamer belt solar wind case,here k_(⊥)andρ_(i)repr.s.nt the wavevector component perpendicular to the background magnetic field and the ion thermal gyroradius,*** quasilinear theory in ter.s.of the Fokker-Planck equation in the region of wavenumber turbulent spectra,we find the particle distribution function flattening in the superthermal tail population which is the signature of particle energization and plasma heating.

关键词： sun:chromosphere sun:corona sun:heliosphere

review of Electrochemical sensors and Biosensors Based on First-row Transition Metals,Their Oxides,and Noble Metals Nanoparticles

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Journal of Analysis and Testing 2024年第2期8卷 143-159页

作者： Kulveer singh Kuldeep Kumar Maurya Manisha Malviya Department of Chemistry Indian Institute of Technology(Banaras Hindu University)Varanasi221005India

The use of electrochemical sensors for.s.nsitive disease diagnosis and detecting various species with pharmacological,therapeutic,industrial,food-related,and environmental origins is now widely accepted.A catalytic or binding event r.s.lting from the sensor.s.electroactive component recognizing its analyte creates an electrical signal proportionate to the analyte concentration,which is then monitored by a *** development of morphologically distinct metal and metal oxide nanoparticles formed from first-row transition elements(Mn,Cr,Fe,Co,Ti,Ni,Cu,Zn)and noble metals(Pt,Au,Ag,Pd)is described in this *** effect of these metal nanoparticles has been studied using Tetracyanoquinodimethane(TCNQ),Ferrocene,and other organic compounds as electroactive species using carbon paste-modified *** sensors,mostly based on ferrocene,are exceedingly sensitive,selective,affordable,and for detecting numerous biomolecules like glucose,dopamine,NADH,ascorbic acid,and a few dyes and are simple to *** recent decades,charge transfer organic species-based chemosensors have become a prominent study *** paper outlines current developments in electrochemical biosensors based on transition metal nanoparticles,covering glucose,ascorbic acid,uric acid,and other inorganic and organic *** importance of transition metal and transition metal oxide nanoparticles as potential electrode modifiers for developing sensors is highlighted.A discussion of the pr.s.nt problem and possible solutions,and plausible future directions mar.s.the review’s conclusion.

关键词： Electrochemical sensing Amperometry Cyclic voltammetry square wave voltammetry Linear.s.eep voltammetry

Knowledge‐based deep learning system for classifying Alzheimer.s.disease for multi‐task learning

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CAAI Transactions on Intelligence Technology 2024年第4期9卷 805-820页

作者： Amol Dattatray Dhaygude Gaurav Kumar Ameta Ihtiram raza Khan Pavitar Parkash singh renato r.Maaliw III Natrayan Lakshmaiya Mohammad shabaz Muhammad Attique Khan Hany s.Hussein Hammam Alshazly Department of Data science University of WashingtonSeattleWashingtonUSA Department of Computer.s.ience&Engineering Parul Institute of TechnologyParul UniversityVadodaraGujaratIndia Department of Computer.s.ience Jamia HamdardDelhiIndia Department of Management Lovely Professional UniversityPhagwaraIndia 5 College of Engineering Southern Luzon State UniversityLucbanQuezonPhilippines Department of Mechanical Engineering Saveetha School of EngineeringSIMATSChennaiTamil NaduIndia Model Institute of Engineering and Technology JammuJ&KIndia Department of Computer.s.ience HITEC UniversityTaxilaPakistan Department of Computer.s.ience and Mathematics Lebanese American UniversityBeirutLebanon Electrical Engineering Department College of EngineeringKing Khalid UniversityAbhaSaudi Arabia Electrical Engineering Department Aswan UniversityAswanEgypt Faculty of Computers and Information South Valley UniversityQenaEgypt

Deep learning has recently become a viable approach for classifying Alzheimer.s.disease(AD)in medical ***,existing models struggle to efficiently extract featur.s.from medical images and may squander additional information r.s.urces for illness *** addr.s. these issues,a deep three‐dimensional convolutional neural network incorporating multi‐task learning and attention mechanisms is *** upgraded primary C3D network is utilised to create rougher low‐level feature *** introduces a new convolution block that focuses on the structural aspects of the magnetOrCID:ic r.s.nance imaging image and another block that extracts attention weights unique to certain pixel positions in the feature map and multiplies them with the feature map ***,several fully connected layers are used to achieve multi‐task learning,generating three outputs,including the primary classification *** other two outputs employ backpropagation during training to improve the primary classification *** findings show that the authors’proposed method outperfor.s.current approaches for classifying AD,achieving enhanced classification accuracy and other in-dicators on the Alzheimer.s.disease Neuroimaging Initiative *** authors demonstrate promise for future disease classification studies.

关键词： classification deep learning

Comparative measurement of CO_(2),CH_(4)and CO at two traffic interjunctions having inflated vehicular flow in Delhi

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Journal of Environmental sciences 2024年第7期141卷 314-329页

作者： Komal Daya soni Khem singh shankar G.Aggarwal CsIr-National Physical Laboratory Dr.K.S.Krishnan MargNew Delhi 110012India Academy of scientific&Innovative r.s.arch(AcsIr) Ghaziabad 201002India

Vehicular emissions are considered one of the major anthropogenic sources of greenhouse gases and poor air quality in metropolitan *** study aims to see the correlation of CO_(2),CH_(4),and CO through monitoring over a period from December 2020 to October 2021 covering three seasons’winter.s.mmer,and monsoon at two different traffic locations of Delhi having different traffic volumes,road patter.s.and traffic *** annual average morning concentration of CO_(2),CH_(4)and CO was found(533±105),(7.3±3.1),(10.7±3.0)ppm at Najafgarh and(480±70),(5.2±1.8),(7.8±2.8)ppm at rajendra Place,r.s.ectively.A relationship between concentration of all three gases and meteorological parameters such as temperature,humidity,wind speed and wind direction has also been investigated using Pearson correlation coefficient and pollution r.s. diagram.A comparable pattern in concentration was observed for all three gases in spatial(location)and temporal(diurnal)*** concentration trend of CO_(2)in different seasons is winter.s.mmer>monsoon,while in the case of CH_(4)winter.s.mmer>monsoon but not any seasonal trend was noted in CO *** is observed that CO_(2)has a good relation with CO(a tracer for vehicular emission)in ter.s.of diurnal variation,whereas,CH_(4)does not repr.s.nt a relation with CO and CO_(2)diurnally,suggesting that vehicles are the source of CO_(2)but not much contributing to other greenhouse gases like CH_(4).

关键词： Vehicular emission Greenhouse gases Harmful pollutants Meteorological parameters

Photo-activated microtubule targeting drugs: Advancing therapies for colorectal cancer

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World Journal of Gastroenterology 2024年第26期30卷 3257-3260页

作者： Nar.s. singh samantha sharma Department of Medical and Molecular Genetics Indiana University School of MedicineIndianapolisIN 46202United States

Over the years immunotherapy has demonstrably improved the field of cancer ***,achieving long-term survival for colorectal cancer(CrC)patients remains a significant unmet *** immunotherapies incor-porating targeted drugs like MEK or multi-kinase inhibitors have offered some palliative ***,substantial gaps remain in the current therapeutic armamentarium for *** recent years,there has been a surge of inter.s. in exploring novel treatment strategies,including the application of light-activated drugs in conjunction with optical *** approach holds promise for achie-ving localized and targeted delivery of cytotoxic agents,such as microtubule-targeting drugs,directly to cancerous cells within the colon.

关键词： Colorectal cancer Therapy Microtubule Photo pharmacology Immuno-therapies©The Author.s.2024.Published by Baishideng Publishing Group Inc.All rights r.s.rved.

Modulatory role of plant-derived metabolites on host-microbiota interactions:personalized therapeutics outlook

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BIOCELL 2024年第8期48卷 1127-1143页

作者： POOJA YADAV NAr singh CHAUHAN Department of Biochemistry Maharshi Dayanand University RohtakRohtakHaryanaIndia

A diverse array of microbes in and on the human body constitute the *** micro-r.s.dents continuously interact with the human host through the language of metabolites to dictate the host’s physiology in health and *** biotic and abiotic component ensuring a balanced host-microbiota interaction are potential microbiome therapeutic agents to overcome human *** metabolites are continually being used to treat various *** metabolites target the host’s metabolic machinery and host-gut microbiota interactions to overcome human *** the paramount therapeutic significance of the factors affecting host-microbiota interactions,a comprehensive overview of the modulatory role of plant-derived metabolites in host-microbiota interactions is *** current review puts an effort into comprehending the role of medicinal plants in gut microbiota modulation to mitigate various human *** would develop a holistic understanding of hostmicrobiota interactions and the role of effectors in health and diseases.

关键词： Microbiome therapeutics Human gut microbiota Host-microbiota interactions Personalized therapeutics Plant metabolites Human health and diseases

Constraining the variable generalized Chaplygin gas model in matter creation cosmology

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Communications in Theoretical Physics 2024年第10期76卷 121-136页

作者： Yogesh Bhardwaj C P singh Department of Applied Mathematics Delhi Technological University

We explore the variable generalized Chaplygin gas（VGCG） model in the theory of matter creation cosmology within the framework of a spatially homogeneous and isotropic flat Friedmann—Lemai tre—rober.s.n—Walker.s.ace-time. Matter creation cosmology is based on reinterpretation of the energy–momentum tensor in Einstein's field equations. This creation corr.s.onds to an irreversible energy flow from the gravitational field to the created matter constituents. The variable Chaplygin gas（VCG） is also studied as a particular.s.lution. We use the Markov chain Monte Carlo method to constrain the free parameters of three models, namely,Lambda-Cold-Dark matter（ΛCDM）, VGCG and VCG models with and without matter creation from the latest observational data from baryon acoustic oscillations, cosmic chronometer, type Ia supernovae（Pantheon） including gamma-ray bursts, quasars and the local measurement of H0from r21 data. Two different combinations of dataset provide a fairly tight constraint on the parameters of the ΛCDM, VGCG and VCG models. The pr.s.nt values of various cosmological parameters are obtained, which are very close to the ΛCDM model. Furthermore, we perform stability analysis, Bayesian evidence analysis and information criteria analysis for these models through studying the sound speed, Bayes factor, and Akaike information criteria（AIC） and Bayesian information criteria（BIC） selection criteria. The values of sound speed for VGCG and VCG models shows that both the models are stable. According to AIC, it is observed that VGCG and VCG models with matter creation are supported considerably less by current observations,while BIC shows that these models are not favoured by observational data.

关键词： Chaplygin gas model cosmological model dark energy matter creation

Effect of random movement and cooperative hunting in the prey-predator.s.stem:A dynamical approach

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International Journal of Biomathematics 2024年第3期17卷 211-240页

作者： shivam Teekam singh Mukesh Kumar Department of Mathematics Graphic Era Deemed to be University 566/6 Bell RoadSociety AreaClenent Town DehradunUttarakhand 248002India Department of Computer.s.ience and Engineering Graphic Era Deemed to be University 566/6 Bell RoadSociety AreaClement Town DehradunUttarakhand 248002India

self-diffusion prerequisite is obtained as the spreading approach of biological *** hunting is a common behavior in predator populations that promotes predation and the coexistence of the prey-predator *** the other.s.de,the Allee effect among prey may cause the system to become *** this paper,a difusive prey predator.s.stem with cooperative hunting and the weak Allee effect in prey populations is *** linear.s.ability and Hopf-bifurcation analysis had been used to examine the system's *** the spatial stability of the system,the conditions for Turing instability have been *** multiple-scale analysis has been used to derive the amplitude equations of the *** stability analysis of these amplitude equations leads to the formation of Turing ***,numerical simulations are used to analyze spatial patter.s.forming in 1-D and *** studies indicate that the model can generate a complex pattern structure and that self-diffusion has a dr.s.ic impacton species distribution.

关键词： Prey predator.s.stem hunting cooperation Allee effect Hopf-bifurcation diffusive instability amplitudeequation