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Chinese Journal of Chemical Engineering 2017年第9期25卷 1137-1142页

作者： s.r.mishra M.M.Bhatti Department of Mathematics Siksha ‘O’ Anusandhan University shanghai Institute of Applied Mathematics and Mechanics Shanghai University

In this article, we have considered the simultaneous influence of ohmic heating and chemical reaction on heat and mass transfer over a stretching sheet. The effects of applied magnetic field are also taken into consideration while the induced magnetic field is not considered due to very small magnetics reynolds number. The governing flow problem comprises of momentum, continuity, thermal energy and concentration equation which are transformed into highly nonlinear coupled ordinary differential equations by means of similarity transforms, which are then, solved numerically with the help of successive Linearization method(sLM) and Chebyshev spectral collocation method. Numerical values of skin friction coefficient, local Nusselt number, and sherwood number are also taken into account with the help of tables. The physical influence of the involved parameters of flow velocity, temperature and concentration distribution is discussed and demonstrated graphically. The numerical comparison is also presented with the existing published results and found that the present results are in excellent agreement which also confirms the validity of the present methodology.

关键词： Ohmic heating Heat and mass transfer Chemical reaction successive linearization method

A numerical simulation for the control of radiative heat energy and thermophoretic effects on MHD micropolar fluid with heat source

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Journal of Ocean Engineering and science 2022年第1期7卷 92-98页

作者： ram Prakash sharma s.r.mishra Department of Mechanical Engineering National Institute of TechnologyArunachal PradeshYupia 791112Papum Pare DistrictArunachal Pradesh Department of Mathematics Siksha‘O’Anusandhan Deemed to be UniversityBhubaneswar 751030OdishaIndia

The current paper explores the behavior of the thermal radiation on the time-independent flow of mi-cropolar fluid past a vertical stretching surface with the interaction of a transverse magnetic *** ef-fect of thermo-diffusion(soret)along with the heat source is incorporated to enhance the thermal ***,the convective solutal condition is considered that affects the mass transfer *** transformed equations are modeled using suitable similarity ***,the complex cou-pled equations are handled mathematically employing the runge-Kutta-Felhberg *** behavior of characterizing parameters on the flow phenomena as well as the engineering coefficients are displayed via graphs and the validation of the current outcome is reported with the previously published results in particular cases.

关键词： Magnetohydrodynamic Thermal radiation Heat source Thermo-diffusion Chemical reaction runge-Kutta-Felhberg method

Chemical reaction effect of an axisymmetric flow over radially stretched sheet

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Propulsion and Power research 2019年第1期8卷 79-84页

作者： B.Nayak s.r.mishra G.Gopi Krishna Department of Mathematics Sikslia‘O’AnusandhanKhandagiriBhubaneswar 751030OdisaIndia Department of Mathematics Sri Venkateswara UniversityTirupatiIndia

A steady boundary layer flow over a porous flat plate has been considered in the present *** transfer analysis with first order chemical reaction is also considered instead of heat *** plate concentration is considered in the form of power law instead of taking *** goveming PDEs are transformed into ordinary differential equations using similarity transfomation and then these ODEs are solved by employing runge-Kutta fourth order method associated with shooting technique.A parametric study of all involving parameters is obtained by the help of *** major findings are:(i)the concentration of the fluid in its boundary layer decrease with increase in heavier species,the reaction rate parameter and the power law exponent;(ji)the rate of mass transfer increases with an increase in reaction rafe parameter and power-law exponent.

关键词： Magnetohydrodynamic Mass transfer First order chemical reaction runge-Kutta method shooting technique

Free Convection of a Viscous Electrically Conducting Fluid Past a stretching surface

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Fluid Dynamics & Materials Processing 2022年第2期18卷 205-222页

作者： Abdulmajeed D.Aldabesh P.K.Pattnaik s.Jena s.r.mishra Mouna Ben Henda Iskander Tlili Department of Mechanical Engineering Faculty of EngineeringAlbaha UniversityAl Bahah65527Saudi Arabia Department of Mathematics College of Engineering and TechnologyBhubaneswarOdisha751029India Department of Mathematics Centurion University of Technology and ManagementBhubaneswarOdisha751009India Department of Mathematics Siksha‘O’Anusandhan Deemed to be UniversityBhubaneswarOdisha751030India Physics Department College of ScienceAl-ZulfiMajmaah UniversityAL-Majmaah11952Saudi Arabia

Free convection of a viscous electrically conducting liquid past a vertical stretching surface is investigated in the presence of a transverse magnetic *** convection is driven by both thermal and solutal *** original partial differential equations governing the problem are turned into a set of ordinary differential equations through a similar variables *** alternate set of equations is solved through a Differential Transform Method(DTM)and the Pade *** response of the considered physical system to the non-dimensional parameters accounting for the relative importance of different effects is assessed considering different situations.

关键词： Viscous fluid magnetohydrodynamic(MHD) thermal and mass buoyancy differential transform method and pade approximant

synthesis, Electrical Conductivity, and Dielectric Behaviour of Polyaniline Doped with H2sO4;HCl and (HCl + NaNO2) Mixture

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Non-Metallic Material science 2020年第2期2卷 15-18页

作者： J.Mohanty s.s.mishra T.r.Das Mohapatra1 s.r.mishra T.Badapanda Department of Chemistry C.V.Raman Global UniversityBhubaneswarOdisha752054India Department of Chemistry Gandhi Institute for Education and TechnologyBaniatangiOdisha752060India

Acid doped Polyaniline(PANI)due to their increased electrical conductivity,are considered to be the most promising conducting filler ***,the present study,reports the synthesis of the PANI followed by acid doping,electrical conductivity and dielectric properties measurements of H2sO4;HCl and(***+NaNO2mixture)doped *** order to know the effect of acetone washing on the electrical properties of acid doped PANI samples,the electrical properties of the non-acetone washed acid doped PANI samples are compared with that of their acetone washed *** PANI salt was prepared by conventional route using aniline hydrochloride and ammonium persulphate as an *** salt was subjected to 0.5M NaOH to form PANI base,which was further doped separately with H2sO4;HCl and(***+NaNO2mixture)respectively followed by acetone washing.A comparative electrical conductivity study between the acetone washed and unwashed PANI salt and H2sO4,HCl and ***+NaNO2 mixture doped PANI were characterized by dielectric and impedance study.

关键词： PANI H2sO4 HCl NaNO2 Dielectric permitivity Electrical conductivity

Hydromagnetic thin film flow of Casson fluid in non-Darcy porous medium with Joule dissipation and Navier＇s partial slip

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Applied Mathematics and Mechanics(English Edition) 2017年第11期38卷 1613-1626页

作者： G.s.sETH r.TrIPATHI M.K.mishra Department of Applied Mathematics Indian Institute of Technology (India School of Mines) Dhanbad 826004 India

In this paper, the effects of viscous and Ohmic heating and heat genera- tion/absorption on magnetohydrodynamic flow of an electrically conducting Casson thin film fluid over an unsteady horizontal stretching sheet in a non-Darcy porous medium are investigated. The fluid is assumed to slip along the boundary of the sheet. similar- ity transformation is used to translate the governing partial differential equations into ordinary differential equations. A shooting technique in conjunction with the 4th order runge-Kutta method is used to solve the transformed equations. Computations are car- ried out for velocity and temperature of the fluid thin film along with local skin friction coefficient and local Nusselt number for a range of values of pertinent flow parameters. It is observed that the Casson parameter has the ability to enhance free surface velocity and film thickness, whereas the Forchheimer parameter, which, is responsible for the inertial drag has an adverse effect on the fluid velocity inside the film. The velocity slip along the boundary tends to decrease the fluid velocity. This investigation has various applications in engineering and in practical problems such as very large scale integration （VLsI） of electronic chips and film coating.

关键词： fluid thin film non-Darcy medium velocity slip unsteady stretching sheet,Joule dissipation heat generation/absorption

Anticonvulsant potential of rosuvastatin in combination with carbamazepine and valproate in animal models of epilepsy

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World Journal of Methodology 2025年第2期15卷 137-144页

作者： Vandana Tayal Akash Mandal Ijasul Haque M Akhilesh mishra Bhupinder s Kalra Vandana roy Department of Pharmacology Maulana Azad Medical CollegeNew Delhi 110002India Department of Pharmacology MES Medical CollegePerintalmanna 679338KeralaIndia Department of Central Animal Facility Maulana Azad Medical CollegeNew Delhi 110002India

BACKGrOUND Epilepsy impacts millions of people,with many not responding to existing *** evidence links neuroinflammatory processes to *** exhibit anti-inflammatory and neuroprotective properties,potentially offering antiepileptic *** To evaluate the anticonvulsant effects of rosuvastatin in animal models of *** Ninety-six albino mice were divided into 16 *** the maximal electroshock seizure(MEs)model,eight groups received intraperitoneal vehicle,carbama-zepine,rosuvastatin,or a *** measured included seizure protection[tonic hind limb extension(THLE)],duration of THLE,seizure duration,and *** the pentylenetetrazol(PTZ)model,eight groups were pretreated with vehicle,valproate,rosuvastatin,or a combination,with outcomes measured as seizure latency,seizure duration,and *** In the MEs model,rosuvastatin exhibited protection against THLE in a small percentage of *** shortens the duration of THLE in a dose-dependent ***,none of these were statistically significant com-pared to the control *** combination of rosuvastatin 10 mg/kg with carbamazepine 4 mg/kg resulted in a significant reduction in seizure duration compared to the control group,better than carbamazepine alone at 4 mg/kg and 6 mg/*** the PTZ model,rosuvastatin alone showed no significant effects on latency,duration of seizure,or ***,rosuvastatin 10 mg/kg combined with valproate 100 mg/kg significantly delayed the onset of seizures,seizure duration and mortality percentage,better than valproate alone at 100 mg/*** rosuvastatin enhanced the anticonvulsant effects of carbamazepine and *** studies are required to explore the antiepileptic potential of rosuvastatin at various doses,durations,dosage forms,routes and models.

关键词： Antiepileptic Anticonvulsant statins rosuvastatin Maximal electroshock seizure Pentylenetetrazol

A comprehensive investigation on nonlinear vibration and bending characteristics of bio-inspired helicoidal laminated composite structures

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 81-100页

作者： s.sAUrABH r.KIrAN D.sINGH r.VAIsH V.s.CHAUHAN school of Mechanical and Materials Engineering Indian Institute of Technology Mandi

Bio-inspired helicoidal composite laminates, inspired by the intricate helical structures found in nature, present a promising frontier for enhancing the mechanical properties of structural designs. Hence, this study provides a comprehensive investigation into the nonlinear free vibration and nonlinear bending behavior of bio-inspired composite plates. The inverse hyperbolic shear deformation theory(IHsDT) of plates is employed to characterize the displacement field, with the incorporation of Green-Lagrange nonlinearity. The problem is modeled using the C0finite element method(FEM), and an in-house code is developed in the MATLAB environment to solve it numerically. Various helicoidal layup configurations including helicoidal recursive(Hr), helicoidal exponential(HE), helicoidal semi-circular(Hs), linear helicoidal(LH), and Fibonacci helicoidal(FH)with different layup sequences and quasi-isotropic configurations are studied. The model is validated, and parametric studies are conducted. These studies investigate the effects of layup configurations, side-to-thickness ratio, modulus ratios, boundary conditions, and loading conditions at different load amplitudes on the nonlinear vibration and nonlinear bending behaviors of bio-inspired composite plates. The results show that the laminate sequence exerts a substantial impact on both nonlinear natural frequencies and nonlinear bending behaviors. Moreover, this influence varies across different side-to-thickness ratios and boundary conditions of the bio-inspired composite plate.

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Effect of friction stir processing on mechanical properties and heat transfer of TIG welded joint of AA6061 and AA7075

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Defence Technology（防务技术） 2021年第3期17卷 715-727页

作者： Husain Mehdi r.s.mishra Department of Mechanical Engineering Delhi Technological UniversityDelhiIndia

Tungsten inert gas(TIG) welding is the most commonly used joining process for aluminum alloy for AA6061 and AA7075 which are highly demanded in the aerospace engineering and the automobile sector, but there are some defects occur during TIG welding like micro-crack, coarse grain structure, and porosity. To improve these defects, the TIG welded joint is processed using friction stir processing(FsP).This paper presents the effect of friction stir processing on TIG welding with filler Er4043 and Er 5356 for dissimilar aluminum alloy AA6061 and AA7075. The mechanical characterization, finite element formulation and mathematical equations of heat transfer of TIG + FsP welded joints are investigated using ANsYs Fluent software by adjusting process parameters of FsP. The results show that the maximum compressive residual stress 73 MPa was obtained at the fusion zone(FZ) of the TIG weldment with filler Er4043, whereas minimum compressive residual stress 37 MPa was obtained at stir zone(sZ) of the TIG+ FsP with filler 5356. The maximum heat flux 5.33 × 106 W/m2 and temperature 515C have observed at tool rotation 1600 rpm with a feed rate of 63 mm/min. These results give a satisfactory measure of confidence in the fidelity of the simulation。

关键词： residual stress TIG+FsW Heat transfer Micro-hardness Tensile strength

revisiting cerebral endothelial cells in Alzheimer’s disease

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Neural regeneration research 2025年第10期20卷 2911-2912页

作者： Amira s.Hanafy Department of Neurosurgery University Hospital BonnBonnGermany

Alzheimer’s disease(AD)is the most common neurodegenerative disorder characterized by slow and progressive decline of cognitive and memory *** only approximately 5%of the cases,AD is familial,as often predisposed by genetic mutations(Hoogmartens et al.,2021),while sporadic AD accounts for approximately 95%of the *** amyloid cascade hypothesis is one of the fundamental hypotheses put out to explain AD pathogenesis as dysregulated homeostasis of amyloid-β(Aβ)peptides that leads to the accumulation of Aβplaques in the parenchyma,an anatomical hallmark of AD.

关键词： Alzheimer Aβ cerebral