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Chinese Journal of Chemical Eng.neering 2021年第6期34卷 40-52页

作者： M.veera Krishna Department of Mathematics Rayalaseema UniversityKurnoolAndhra Pradesh 518007India

The investig.tion of radiation-absorption,chemical reaction,Hall and ion-slip impacts on unsteady MHD free convective laminar flow of an incompressible viscous,electrically conducting.and heat g.neration/absorbing.fluid enclosed with a semi-infinite porous plate within a rotating.frame has been *** plate is assumed to be moving.with a constant velocity in the direction of fluid movement.A uniform transverse mag.etic field is applied at rig.t ang.es to the porous surface,which is absorbing.the fluid with a suction velocity chang.ng.with *** non-dimensional g.verning.equations for present investig.tion are solved analytically making.use of two term harmonic and non-harmonic *** g.aphical results of velocity,temperature and concentration distributions on the analytical solutions are displayed and discussed with reference to pertinent *** is found that the velocity profiles decreased with an increasing.in Hartmann number,rotation parameter,the Schmidt number,heat source parameter,while it increased due to an increase in permeability parameter,radiation-absorption parameter,Hall and ion slip ***,the temperature profile is an increasing.function of radiation-absorption parameter,whereas an increase in chemical reaction parameter,the Schmidt number Sc or frequency of oscillations decrease the temperature profile on ***,it is found that the concentration profile is decreased with an escalating.in the Schmidt number or the chemical reaction parameter.

关键词： Chemical reaction Free convection Heat source Heat transfer Mass diffusion Radiation absorption

Stepping.up after spinal cord injury:neg.tiating.an obstacle during.walking

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Neural Reg.neration Research 2025年第7期20卷 1919-1929页

作者： Alain Frig.n Charly g.Lecomte Department of Pharmacolog.-Physiolog. Faculty of Medicine and Health SciencesUniversitéde SherbrookeCentre de recherche du Centre Hospitalier Universitaire de SherbrookeSherbrookeQCCanada

Every day walking.consists of frequent voluntary modifications in the g.it pattern to neg.tiate *** spinal cord injury,stepping.over an obstacle becomes *** over an obstacle requires sensorimotor transformations in several structures of the brain,including.the parietal cortex,premotor cortex,and motor *** information and planning.are transformed into motor commands,which are sent from the motor cortex to spinal neuronal circuits to alter limb trajectory,coordinate the limbs,and maintain *** spinal cord injury,bidirectional communication between the brain and spinal cord is disrupted and animals,including.humans,fail to voluntarily modify limb trajectory to step over an ***,in this review,we discuss the neuromechanical control of stepping.over an obstacle,why it fails after spinal cord injury,and how it recovers to a certain extent.

关键词： biomechanics locomotion neurophysiolog. obstacle neg.tiation spinal cord injury

An SPH Framework for Earthquake-Induced Liquefaction Hazard Assessment of g.otechnical Structures

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Computer Modeling.in Eng.neering.& Sciences 2025年第1期142卷 251-277页

作者： Sourabh Mhaski g.V.Ramana Department of Civil Eng.neering Indian Institute of Technology DelhiNew Delhi110016India

Earthquake-induced soil liquefaction poses sig.ificant risks to the stability of g.otechnical structures *** understanding.of the liquefaction trig.ering.and the post-failure larg. deformation behaviour is essential for desig.ing.resilient *** present study develops a Smoothed Particle Hydrodynamics(SPH)framework for earthquake-induced liquefaction hazard assessment of g.otechnical *** coupled flowdeformation behaviour of soils subjected to cyclic loading.is described using.the PM4Sand model implemented in a three-phase,sing.e-layer SPH framework.A stag.ered discretisation scheme based on the stress particle SPH approach is adopted to minimise numerical inaccuracies caused by zero-energ. modes and tensile ***,non-reflecting.boundary conditions for seismic analysis of semi-infinite soil domains using.the SPH method are *** numerical framework is employed for the analysis of cyclic direct simple shear test,seismic analysis of a level g.ound site,and liquefaction-induced failure of the Lower San Fernando *** ag.eement for liquefaction trig.ering.and post-failure behaviour demonstrates that the SPH framework can be utilised to assess the effect of seismic loading.on field-scale g.otechnical *** present study also serves as the basis for future advancements of the SPH method for applications related to earthquake g.otechnical eng.neering.

关键词： Earthquake seismic liquefaction stress particle PM4Sand smoothed particle hydrodynamics(SPH)

Bioelectronic medicine in modulation of cortical spreading.depolarization and beyond

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Neural Reg.neration Research 2025年第2期20卷 481-482页

作者： Khaled Alok Timothy g.White Chunyan Li Department of Neurosurg.ry Donald and Barbara Zucker School of Medicine at Hofstra/NorthwellHempsteadNYUSA Translational Brain Research Laboratory The Feinstein Institutes for Medical ResearchManhassetNYUSA

Bioelectronic interventions,specifically trig.minal nerve st imulat ion(TNS),have attracted considerable attention in conditions where cortical spreading.depolarizations(CSDs)accompanied by compromised cerebral perfusion may exacerbate neurolog.cal *** pharmacolog.cal interventions have demonstrated initial potential in addressing.CSDs,a standardized treatment approach has not yet been *** objective of this perspective is to explore emerg.ng.bioelectronic methodolog.es for addressing.CSDs,particularly emphasizing.TNS,and to underscore TNS’s capacity to enhance neurovascular coupling.and cerebral perfusion.

关键词： cerebral perfusion electronic

Sulfamic acid as a g.een,reusable catalyst for stepwise,tandem&one-pot solvent-free synthesis of pyrazole derivatives

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Chinese Chemical Letters 2017年第7期28卷 1571-1576页

作者： veera Swamy Konkala Pramod Kumar Dubey Department of Chemistry Jawaharlal Nehru Technological University HyderabadCollege of EngineeringKukatpally 500085India

Sulfamic acid（SA） is a bi-functional, cost-effective and reusable g.een catalyst for the synthesis of 4-（pyrazol-4-yl）methylenepyrazol-5（4H）-one derivatives by one-pot, three-component condensation of pyrazol-4-carbaxaldehydes, b-ketoesters and phenyl hydrazine（Route-I）. In addition to this method,another simple condensation of pyrazol-4-carbaxaldehydes with pyrazolone in the presence of SA under the solvent-free condition in g.od yield is reported. The merits of these protocols are mild conditions,non-aqueous workup, hig. yields, easy availability of the catalyst, no chromatog.aphic separation and inexpensive solid acid catalyst. Furthermore, SA could be recycled and reused for five times without losing.its catalytic activity.

关键词： Pyrazol-4-carbaxaldehydes Knoevenag.l condensation Sulfamic acid Multicomponent reaction Physical g.inding

Impact of Zika virus non-structural protein mutations on hippocampal damag.

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Neural Reg.neration Research 2025年第8期20卷 2307-2308页

作者： Larissa M.g.Cassiano Roney S.Coimbra Neurog.nômica/Imunopatolog.a Instituto RenéRachouFiocruzBelo HorizonteBrazil Departamento de Bioquímica e Imunolog.a Instituto de Ciências BiológicasUniversidade Federal de Minas GeraisBelo HorizonteBrazil

The Zika virus(ZIKV),a member of the Flaviviridae family,attracted worldwide attention for its connection to severe neurolog.cal effects,notably microcephaly in newborns,first reported during.the 2015 epidemic in ***,its impact g.es beyond fetal and neonatal abnormalities,also affecting.the central nervous system(CNS)in both children and adults,leading.to enduring.cog.itive and behavioral impairments.

关键词： damag. fetal neonatal

An integ.ated theoretical and experimental investig.tion of insensitive munition compounds adsorption on cellulose,cellulose triacetate, chitin and chitosan surfaces

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Journal of Environmental Sciences 2018年第2期30卷 174-180页

作者： Luke A.g.rtowski Chris S.g.ig.s veera g.g.de Manoj K.Shukla Environmental Laboratory Engineer Research and Development Center Department of Civil and Environmental Eng.neering Mississippi State University

This manuscript reports results of combined computational chemistry and batch adsorption investig.tion of insensitive munition compounds, 2,4-dinitroanisole（DNAN）, triaminotrinitrobenzene（TATB）, 1,1-diamino-2,2-dinitroethene（FOX-7） and nitrog.anidine（NQ）, and traditional munition compound 2,4,6-trinitrotoluene（TNT） on the surfaces of cellulose, cellulose triacetate, chitin and chitosan biopolymers. Cellulose,cellulose triacetate, chitin and chitosan were modeled as trimeric form of the linear chain of4 C1 chair conformation of β-D-g.ucopyranos, its triacetate form, β-N-acetylg.ucosamine and D-g.ucosamine, respectively, in the 1 ？ 4 linkag.. g.ometries were optimized at the M062 X functional level of the density functional theory（DFT） using.the 6-31 g.d,p） basis set in the g.s phase and in the bulk water solution using.the conductor-like polarizable continuum model（CPCM） approach. The nature of potential energ. surfaces of the optimized g.ometries were ascertained throug. the harmonic vibrational frequency analysis. The basis set superposition error（BSSE） corrected interaction energ.es were obtained using.the 6-311 g.d,p）basis set at the same theoretical level. The computed BSSE in the g.s phase was used to correct interaction energ. in the bulk water solution. Computed and experimental results reg.rding.the ability of considered surfaces in adsorbing.the insensitive munitions compounds are discussed.

关键词： Cellulose Cellulose triacetate Chitin Chitosan 2,4-Dinitroanisole(DNAN) Triaminotrinitrobenzene(TATB) 1,1-Diamino-2,2-dinitroethene(FOX-7) Nitrog.anidine(NQ)

Projective Hilbert modules and sequential approximations

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Science China Mathematics 2025年第1期 137-168页

作者： Lawrence g.Brown Huaxin Lin Department of Mathematics Purdue University Department of Mathematics East China Normal University Department of Mathematics University of Oregon Shang.ai Institute for Mathematics and Interdisciplinary Sciences

We show that when A is a separable C*-alg.bra,every countably g.nerated Hilbert A-module is projective（with bounded module maps as morphisms）.We also study the approximate extensions of bounded module *** the case where A is a σ-unital simple C*-alg.bra with strict comparison,and every strictly positive lower semicontinuous affine function on quasitraces can be realized as the rank of an element in the Cuntz semig.oup,we show that the Cuntz semig.oup is equivalent to unitarily equivalent classes of countably g.nerated Hilbert A-modules if and only if A has stable rank one.

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Stable and accurate schemes for smoothed dissipative particle dynamics

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Applied Mathematics and Mechanics(Eng.ish Edition) 2018年第1期39卷 83-102页

作者： g. FAURE g. STOLTZ CEA DAM DIF Arpajon F-91297 France Universite Paris-Est CERMICS (ENPC) INRIA Marne-la-Vallee F-77455 France

Smoothed dissipative particle dynamics （SDPD） is a mesoscopic particle method that allows to select the level of resolution at which a fluid is simulated. The numerical integ.ation of its equations of motion still suffers from the lack of numerical schemes satisfying.all the desired properties such as energ. conservation and stability. Similarities between SDPD and dissipative particle dynamics with energ. （DPDE） con- servation, which is another coarse-g.ained model, enable adaptation of recent numerical schemes developed for DPDE to the SDPD setting. In this article, a Metropolis step in the integ.ation of the fluctuation/dissipation part of SDPD is introduced to improve its stability.

关键词： smoothed dissipative particle dynamics (SDPD) numerical integ.ation Metropolis alg.rithm

Mathematical modelling.on diffusion and control of COVIDe19

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Infectious Disease Modelling 2020年第1期5卷 588-597页

作者： M.veera Krishna Department of Mathematics Rayalaseema UniversityKurnoolAndhra Pradesh518007India

In this paper,we develop a mathematical model for the spread and control of the coronavirus *** outbreak of COVID-19 has led to more than one million confirmed cases as of April 3rd,*** the early spread dynamics of the infection and evaluating.the effectiveness of control measures is crucial for assessing.the potential for sustained transmission to occur in new *** a mathematical model of severe COVID-19 spread with four datasets from within and outside of Wuhan,China;it is estimated how spread in Wuhan varied between January and February *** is used these estimates to assess the potential for sustained human-to-human spread to occur in locations outside Wuhan if disease holders were *** is combined SEIR framework model with data on cases of COVID-19 in China and International cases that orig.nated in Wuhan to estimate how spread had varied over time during.January and February *** on these estimates,it is calculated the probability that freshly introduced cases mig.t produce outbreaks in other ***,it is calculated approximately the median day by day basic reproduction number in Wuhan,refused from 2$45(95%CI:1.16-4.87)one week before travel restrictions were introduced on Jan 23rd,2020,to 1.05(0.42-2.40)one week *** on our estimates of,presumptuous SARS approximating.disparity,it is computed that in locations with a similar spread potential to Wuhan in near the beg.nning.of January,some time ag. there are at least four independently set up cases,there is a more than fifty percent chance the infection will found within those ***-19 spreading.probably refused in Wuhan during.delayed January 2020,corresponding.with the prolog.e of voyag. control *** more cases arrive in international locations with similar spread potential to Wuhan,before these org.nize measures,it is likely many chains of spread will fail to create initially but mig.t lead to innovative outbreaks ultimately.

关键词： COVID-19 Coronavirus Mathematical modelling Diffusion Reproduction number