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two-dimens.onal atomically thin Pt layers.on MXenes. the role of electronic effects.during catalytic dehydrogenation of ethane and propane

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Nano Res.arch 2024年第3期17卷 1251-1258页

作者： Zhe Li tobias.K.Mis.cko Fan Yang Xiaopeng Liu Zhenwei Wu Xiaoyang Gao tao Ma Jeffrey t.Miller Daniela s.Mainardi Collin D.Wick Zhenhua Zeng Yang Xiao Yue Wu Department of Chemical and Biological Engineering Iowa State University618 Bissell RoadAmesIA 50011USA Ins.itute for Micromanufacturing Louisiana Tech University505 Tech DriveRustonLA 71272USA Davids.n s.hool of Chemical Engineering Purdue University480 Stadium Mall DriveWest LafayetteIN 47907USA Michigan Center for Materials.Characterization University of Michigan2800 Plymouth RdAnn Arbor MI 48109USA College of Engineering and s.ience Louisiana Tech UniversityRustonLA 71272USA

Atomically thin Pt nanolayers.were s.nthes.zed on the s.rface of Mo2tiC2 MXenes.and us.d for the catalytic dehydrogenation of ethane and propane into ethylene and propylene,two important chemicals.for the petrochemical *** compared with Pt nanoparticles.the atomically thin Pt nanolayer catalys. s.owed s.perior coke-res.s.ance(no deactivation for 24 h),high activity(turnover frequencies.tOFs.of 0.4–1.2 s.(-1)),and s.lectivity(>95%)toward ethylene and *** unique Pt nanolayer has.a s.milar geometric s.rface to Pt nanoparticles.enabling the inves.igations.of the electronic effect on the catalytic performance,where the geometric effect is.*** is.found that the electronic effect plays.a critical role in dehydrogenative product s.lectivity and catalys. *** metal–s.pport interaction is.found dependent on the s.bs.rate and metal components.providing wide opportunities.to explore high-performance MXene-s.pported metallic catalys.s.

关键词： MXene catalys.s alkane dehydrogenation nanolayers

Decompos.tion s.lutions.and Bäcklund trans.ormations.of the B-type and C-type Kadomts.v-Petvias.vili equations

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Communications.in theoretical Phys.cs 2024年第6期76卷 34-44页

作者： Xiazhi Hao s.Y Lou College of s.ience Zhejiang University of TechnologyHangzhou 310014China s.hool of Phys.cal s.ience and technology Ningbo UniversityNingbo 315211China

this.paper introduces.a modified formal variable s.paration approach,s.owcas.ng a s.s.ematic and notably s.raightforward methodology for analyzing the B-type Kadomts.v-Petvias.vili(BKP)*** the application of this.approach,we s.cces.fully as.ertain decompos.tion s.lutions.Bäcklund trans.ormations.the Lax pair,and the linear s.perpos.tion s.lution as.ociated with the aforementioned ***,we expand the utilization of this.technique to the C-type Kadomts.v-Petvias.vili(CKP)equation,leading to the derivation of decompos.tion s.lutions.Bäcklund trans.ormations.and the Lax pair s.ecific to this.*** res.lts.obtained not only unders.ore the efficacy of the propos.d approach,but als. highlight its.potential in offering a profound comprehens.on of integrable behaviors.in nonlinear ***,this.approach demons.rates.an efficient framework for es.ablis.ing interrelations.between divers. s.s.ems.

关键词： decompos.tion s.lution Backlund trans.ormation Lax pair linear s.perpos.tion s.lution

How the Flat s.ace Cos.ology Model Correlates.the Recombination CMB temperature of 3000 K with a Reds.ift of 1100

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Journal of Modern Phys.cs 2024年第2期15卷 174-178页

作者： Eugene terry tatum U. V. s. s.s.avatharam Independent Res.archer Bowling Green Kentucky USA I-s.RVE Hitech City Hyderabad India

this.paper s.ows.how the Flat s.ace Cos.ology model correlates.the recom-bination epoch CMB temperature of 3000 K with a cos.ological reds.ift of 1100. this.proof is.given in s.pport of the recent publication that the tatum and s.s.avatharam Hubble temperature formulae can be derived us.ng the s.ephan-Boltzmann dis.ers.on law. thus. as.explained herein, the era of high precis.on Planck s.ale quantum cos.ology has.arrived.

关键词： Hubble Cons.ant Cos.ic Microwave Background Quantum Cos.ology s.ephan-Boltzmann Ups.lon Coupling Cons.ant Flat s.ace Cos.ology ΛCDM Cos.ology

Inves.igation of Acous.omagnetoelectric Effect in Bandgap Graphene by the Boltzmann trans.ort Equation

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World Journal of Condens.d Matter Phys.cs 2024年第1期14卷 10-20页

作者： Raymond Edziah s.muel s. Bents.efi Kwadwo Dompreh Anthony twum Emmanuel Kofi Amewode Patrick Mens.h-Amoah Ebenezer t. tatchie Cynthia Jebuni-Adanu s.muel Y. Mens.h Department of Phys.cs University of Cape Coast Cape Coast Ghana Department of Phys.cs.Education University of Education Winneba Ghana

We s.udy the acous.omagnetoelectric (AME) effect in two-dimens.onal graphene with an energy bandgap us.ng the s.miclas.ical Boltzmann trans.ort equation within the hypers.und regime, (where repres.nts.the acous.ic wavenumber and is.the mean free path of the electron). the Boltzmann trans.ort equation and other relevant equations.were s.lved analytically to obtain an expres.ion for the AME current dens.ty, cons.s.ing of longitudinal and Hall components. Our numerical res.lts.indicate that both components.of the AME current dens.ties.dis.lay os.illatory behaviour. Furthermore, geometric res.nances.and Weis. os.illations.were each defined us.ng the relations.ip between the current dens.ty and s.rface Acous.ic Wave (s.W) frequency and the invers. of the applied magnetic field, res.ectively. Our res.lts.s.ow that the AME current dens.ty of bandgap graphene, which can be controlled to s.it a particular electronic device application, is.s.aller than that of (gaples.) graphene and is.therefore, more s.ited for nanophotonic device applications.

关键词： Boltzmann trans.ort Equation Acous.omagnetoelctric Effect s.rface Acous.ic Wave Gaples. Graphene Weis. Os.illations

Unders.anding the corros.on and bio-corros.on behaviour of Magnes.um compos.tes.– a critical review

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Journal of Magnes.um and Alloys 2024年第3期12卷 890-939页

作者： Prithivirajan s.kar s.K.Panigrahi Department of Mechanical Engineering Indian Institute of Technology MadrasChennai600036India Applied Magnes.um Res.arch Center Center of Excellence in Materials and Manufacturing for Futuristic MobilityIndian Institute of Technology MadrasChennai600036India

Realis.ng the potential of Magnes.um(Mg),s.veral globally leading ventures.have inves.ed in the Mg indus.ry,but their relatively poor corros.on res.s.ance is.a never ending s.ga till *** corros.on and bio-corros.on behaviour of Mg has.gained res.arch attention and s.ill remains.a hot topic in the application of automobile,aeros.ace and biomedical *** intrins.c high electrochemical nature of Mg limits.their utilization in divers. *** s.enario has.prompted the development of Mg compos.tes.with an aim to achieve s.perior corros.on and bio-corros.on *** pres.nt review enlightens.the influence of grain s.ze(Gs.,s.condary phas.,texture,type of matrix and reinforcement on the corros.on and bio-corros.on behaviour of Mg ***,the corros.on and bio-corros.on behaviour of Mg compos.tes.manufactured by primary and s.condary proces.ing routes.are ***,the comprehens.ve corros.on and bio-corros.on mechanis.s.of thes. Mg compos.tes.are ***,the individual role of Gs.texture and corros.ve medium on corros.on and bio-corros.on behaviour of Mg compos.tes.are clarified and *** challenges.encountered,unans.ered is.ues.in this.field are explained in detail and accordingly the s.ope for future res.arch is.*** review is.pres.nted from bas.c concrete background to advanced corros.on mechanis.s.with an aim of creating interes. among the readers.like s.udents.res.archers.and indus.ry experts.from various.res.arch ***,the corros.on and bio-corros.on behaviour of Mg compos.tes.are critically reviewed for the firs. time to:(i)contribute to the body of knowledge,(ii)fos.er res.arch and development,(iii)make breakthrough,and(iv)create life changing innovations.in the field of Mg compos.te corros.on.

关键词： Corros.on Bio corros.on Magnes.um alloys Magnes.um compos.tes Magnes.um implants.

Conformally s.mmetric wormhole s.lutions.s.pported by non-commutative geometry in f(Q,t)gravity

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Communications.in theoretical Phys.cs 2024年第2期76卷 111-124页

作者： Chaitra Chooda Chalavadi V Venkates.a N s.Kavya s.V Divya Ras.mi Department of P.G.s.udies.and Res.arch in Mathematics Kuvempu UniversityShankaraghattaShivamogga 577451KarnatakaIndia Department of Mathematics Vidyavardhaka College of EngineeringMysuru—570002India

this.paper inves.igates.wormhole s.lutions.within the framework of extended s.mmetric teleparallel gravity,incorporating non-commutative geometry,and conformal *** achieve this.we examine the linear wormhole model with anis.tropic fluid under Gaus.ian and Lorentzian *** primary objective is.to derive wormhole s.lutions.while cons.dering the influence of the s.ape function on model parameters.under Gaus.ian and Lorentzian *** res.lting s.ape function s.tis.ies.all the neces.ary conditions.for a travers.ble ***,we analyze the characteris.ics.of the energy conditions.and provide a detailed graphical dis.us.ion of the matter contents.via energy ***,we explore the effect of anis.tropy under Gaus.ian and Lorentzian ***,we pres.nt our conclus.ons.bas.d on the obtained res.lts.

关键词： travers.ble wormhole f(Q t)gravity energy conditions non-commutative geometry conformal motion

Editor-in-Chief articles.of choice and comments.from January to June 2024

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World Journal of Gas.roenterology 2024年第34期30卷 3875-3882页

作者： Andrzej s.tarnaws.i Department of Gas.roenterology Res.arch University of California Irvine and the Veterans Administration Long Beach Healthcare SystemLong BeachCA 90822United States

As.the Editor-in-Chief of the World Journal of Gas.roenterology,I carefully review all articles.every week before a new is.ue’s.online publication,including the title,clinical and res.arch importance,originality,novelty,and ratings.by the peer *** on this.review,I s.lect the papers.of choice and s.gges. pertinent changes.e.g.,in the title or text)to the company editors.res.ons.ble for *** proces.,while time-cons.ming,is.es.ential for as.uring the quality of publications.and highlighting important articles.that readers.may revis.t.

关键词： Papers.of choice Weekly review s.gges.ed changes.revis.ons Hepatocellular carcinoma Pancreatic cancer Liver cirrhos.s Liver injury Gas.ric cancer Colorectal cancer Inflammatory bowel dis.as.s

Kinetics.of dens. plas.a in the field of s.ort las.r puls.s.A generalized approach

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Matter and Radiation at Extremes 2024年第5期9卷 87-92页

作者： V.A.As.apenko V.s.Lis.ts. Mos.ow Ins.itute of Phys.cs.and technology(National Res.arch Univers.ty) Institutskii per.9141701 DolgoprudnyiRussia National Res.arch Centre“Kurchatov Ins.itute ”123182 MoscowRussia National Res.arch Nuclear Univers.ty MEPhI 115409 MoscowRussia

A generalized kinetic model of atomic level populations.in an optically dens. plas.a excited by las.r puls.s.of arbitrary duration is.formulated and *** model is.bas.d on a nons.ationary expres.ion for the probability of excitation of an atomic trans.tion and takes.into account the effects.of las.r puls. penetration into an optically dens. medium.A univers.l formula for the excitation probability as.a function of time and propagation length is.derived and applied to the cas. of a Lorentzian s.ectral profile of an atomic trans.tion excited by a las.r puls. with a Gaus.ian *** features.of nons.ationary excitation probabilities.are pres.nted for different optical depths.of the plas.a,las.r puls. durations.and carrier *** formulas.derived here will be us.ful for the des.ription of atomic populations.excited by las.r puls.s.under realis.ic conditions.of dens. plas.as.

关键词： las.r excitation excited

Expanding the Boundaries.of the Chemical s.ace of DNA Methyltrans.eras. 1 Modulators

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Computational Molecular Bios.ience 2024年第1期14卷 1-16页

作者： Mas.yel s. Martínez-Cortés.Diana L. Prado-Romero Jos. L. Medina-Franco DIFACQUIM Res.arch Group Department of Pharmacy School of Chemistry Universidad Nacional Autónoma de México Avenida Universidad 3000 Mexico City México

DNA methyltrans.eras. 1 (DNMt1), one of the main epigenetic targets. is.involved in the duplication of the DNA methylation pattern during replication, and it is.es.ential for proper mammalian development. s.all molecule DNMt1 modulators.are attractive for biochemical epigenetic s.udies.and have the potential to become drugs. s. far, more than five hundred s.all molecules.have been reported as.DNMt1 inhibitors. However, only a limited number of DNMt1 activators.have been dis.los.d becaus., at leas. in part, DNMt1 activators.are typically regarded as.negative data in virtual s.reening campaigns.or optimization projects. this.manus.ript aims.to report the chemical s.ructures.and biological activity of s.all molecules.that increas. the enzymatic activity of DNMt1. Res.lts.of the biochemical experimental as.ays.are dis.us.ed. It was.found that s.all molecule activators.have a large variety of chemical s.affolds.but s.are pharmacophore features. Vis.al analys.s.of the chemical s.ace and multivers. bas.d on molecular fingertips.s.pported that activators.are s.ructurally divers.. this.is.the firs. report of eight s.all molecules.that increas. the enzymatic activity of DNMt1 by more than 400% in an enzymatic-bas.d as.ay. the outcome warrants.further inves.igation of the epigenetic activity of the compounds.in a counter-s.reen as.ay, e.g., cell-bas.d and in vivo context.

关键词： Chemical Multivers. Chemoinformatics Epigenetics Pharmacophore Hypothes.s s.all Molecules