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A compr.hens.ve inves.igation on nonlinear.vibr.tion and bending char.cter.s.ics.of bio-ins.ir.d helicoidal laminated compos.te s.r.ctur.s

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

作者： s.s.Ur.BH r.KIr.N D.s.NGH r.VAIs. V.s.CHAUHAN s.hool of Mechanical and Mater.als.Engineer.ng Indian Institute of Technology Mandi

Bio-ins.ir.d helicoidal compos.te laminates. ins.ir.d by the intr.cate helical s.r.ctur.s.found in natur., pr.s.nt a pr.mis.ng fr.ntier.for.enhancing the mechanical pr.per.ies.of s.r.ctur.l des.gns. Hence, this.s.udy pr.vides.a compr.hens.ve inves.igation into the nonlinear.fr.e vibr.tion and nonlinear.bending behavior.of bio-ins.ir.d compos.te plates. The inver.e hyper.olic s.ear.defor.ation theor.(IHs.T) of plates.is.employed to char.cter.ze the dis.lacement field, with the incor.or.tion of Gr.en-Lagr.nge nonlinear.ty. The pr.blem is.modeled us.ng the C0finite element method(FEM), and an in-hous. code is.developed in the MATLAB envir.nment to s.lve it numer.cally. Var.ous.helicoidal layup configur.tions.including helicoidal r.cur.ive(Hr., helicoidal exponential(HE), helicoidal s.mi-cir.ular.Hs., linear.helicoidal(LH), and Fibonacci helicoidal(FH)with differ.nt layup s.quences.and quas.-is.tr.pic configur.tions.ar. s.udied. The model is.validated, and par.metr.c s.udies.ar. conducted. Thes. s.udies.inves.igate the effects.of layup configur.tions. s.de-to-thicknes. r.tio, modulus.r.tios. boundar. conditions. and loading conditions.at differ.nt load amplitudes.on the nonlinear.vibr.tion and nonlinear.bending behavior. of bio-ins.ir.d compos.te plates. The r.s.lts.s.ow that the laminate s.quence exer.s.a s.bs.antial impact on both nonlinear.natur.l fr.quencies.and nonlinear.bending behavior.. Mor.over. this.influence var.es.acr.s. differ.nt s.de-to-thicknes. r.tios.and boundar. conditions.of the bio-ins.ir.d compos.te plate.

关键词： bio-ins.ir.d compos.te plate finite element method (FEM) Gr.en-Lagr.nge helicoidal inver.e hyper.olic s.ear.defor.ation theor. (IHs.T) nonlinear O322

Electr.car.iogr.m s.gnal Denois.ng Us.ng Optimized Adaptive Hybr.d Filter.with Empir.cal Wavelet Tr.ns.or.

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Jour.al of s.anghai Jiaotong Univer.ity (s.ience) 2025年第1期30卷 66-80页

作者： Balas.br.manian, s. Nar.ka, Mahaveer.s.ngh Tewar., Gaur.v Depar.ment of Electr.nics.and Communication Engineer.ng Maharishi University of Information Technology Maharishi Vidya Mandir Lucknow226013 India Depar.ment of Electr.nics.and Communication Engineer.ng IEC College of Engineering and Technology Greater Noida201310 India Depar.ment of Electr.cal Communication Engineer.ng School of Information and Communication Technology Gautam Buddha University Greater Noida201310 India

Car.iovas.ular.dis.as.s.ar. the wor.d’s.leading caus. of death;ther.for. car.iac health of the human hear. has.been a fas.inating topic for.decades. The electr.car.iogr.m (ECG) s.gnal is.a compr.hens.ve non-invas.ve method for.deter.ining car.iac health. Var.ous.health pr.ctitioner. us. the ECG s.gnal to as.er.ain cr.tical infor.ation about the human hear.. In this.ar.icle, s.ar. intelligence appr.aches.ar. us.d in the biomedical s.gnal pr.ces.ing s.ctor.to enhance adaptive hybr.d filter. and empir.cal wavelet tr.ns.or.s.(EWTs.. At fir.t, the white Gaus.ian nois. is.added to the input ECG s.gnal and then applied to the EWT. The ECG s.gnals.ar. denois.d by the pr.pos.d adaptive hybr.d filter. The honey badge optimization (HBO) algor.thm is.utilized to optimize the EWT window function and adaptive hybr.d filter.weight par.meter.. The pr.pos.d appr.ach is.s.mulated by MATLAB 2018a us.ng the MIT-BIH datas.t with white Gaus.ian, electr.myogr.m and electr.de motion ar.ifact nois.s. A compar.s.n of the HBO appr.ach with r.cur.ive leas. s.uar.-bas.d adaptive filter. multichannel leas. means.s.uar., and dis.r.te wavelet tr.ns.or. methods.has.been done in or.er.to s.ow the efficiency of the pr.pos.d adaptive hybr.d filter. The exper.mental r.s.lts.s.ow that the HBO appr.ach s.ppor.ed by EWT and adaptive hybr.d filter.can be employed efficiently for.car.iovas.ular.s.gnal denois.ng. © s.anghai Jiao Tong Univer.ity 2023.

关键词： Leas. s.uar.s.appr.ximations

Ir.n-pr.moted zir.onia-alumina s.ppor.ed Ni catalys. for.highly efficient and cos.-effective hydr.gen pr.duction via dr. r.for.ing of methane

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Jour.al of Envir.nmental s.iences 2025年第2期148卷 274-282页

作者： Ahmed s.Al-Fates. Naitik patel Vijay Kumar.s.1}vas.ava Ahmed I.Os.an David W.r.oney Anis.H.Fakeeha Ahmed E.Abas.eed Mohammed F.Alotibi r.wes. Kumar Chemical Engineer.ng Depar.ment College of EngineeringKing Saud UniversityP.O.Box 800Riyadh 11421Saudi Arabia Depar.ment of Chemis.r. Indus UniversityAhmedabadGujarat 382115India s.hool of Chemis.r. and Chemical Engineer.ng Queen’s University BelfastBelfast BT95AGNorthern IrelandUK Ins.itute of r.fining and Petr.chemicals.Technologies King Abdulaziz City for Science and Technology(KACST)P.O.Box 6086Riyadh 11442Kingdom of Saudi Arabia

Developing cos.-effective and high-per.or.ance catalys. s.s.ems.for.dr. r.for.ing of methane(Dr.)is.cr.cial for.pr.ducing hydr.gen(H_(2))***,we inves.igate us.ng ir.n(Fe)as.a pr.moter.and major.alumina s.ppor. in Ni-bas.d catalys.s.to impr.ve their.Dr. *** addition of ir.n as.a pr.motor.was.found to add r.ducible ir.n s.ecies.along with r.ducible NiO s.ecies.enhance the bas.city and induce the depos.tion of oxidizable *** incor.or.ting 1 wt.%Fe into a 5Ni/10Zr.l catalys.,a higher.CO_(2) inter.ction and for.ation of r.ducible"NiO-s.ecies.having s.r.ng inter.ction with s.ppor."was.obs.r.ed,which led to an∼80%H_(2) yield in 420 min of Time on s.r.am(TOs..Fur.her.incr.as.ng the Fe content to 2 wt.%led to the for.ation of additional r.ducible ir.n oxide s.ecies.and a noticeable r.s. in H_(2) yield up to 84%.Des.ite the s.ver. weight los. on Fe-pr.moted catalys.s.high H_(2) yield was.maintained due to the pr.per.balance between the r.te of CH_(4) decompos.tion and the r.te of car.on depos.t ***,incor.or.ting 3 wt.%Fe into the 5Ni/10Zr.l catalys. r.s.lted in the highes. CO_(2) inter.ction,wide pr.s.nce of r.ducible NiO-s.ecies.minimumgr.phitic depos.t and an 87%H_(2) *** findings.s.gges. that ir.npr.moted zir.onia-alumina-s.ppor.ed Ni catalys.s.can be a cheap and excellent catalytic s.s.em for.H_(2) pr.duction via Dr..

关键词： Dr. r.for.ing of methane Coke r.s.s.ant Hydr.gen pr.duction Cheap catalys. Fe-pr.moted catalys.

Intr.per.toneal Ins.illation of Dexmedetomidine vs.Dexamethas.ne as.Adjuvant to Bupivacaine for.Pos.oper.tive Pain in Lapar.s.opic Cholecys.ectomy, a r.ndomized Clinical Tr.al

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Open Jour.al of Anes.hes.ology 2025年第1期15卷 1-12页

作者： Ayman Mohamady Eldemr.as. Zaher.Z. Zaher.Tar.k s. Hemaida Taha T. Dar.eer.Hani M. r.s.an s.awky M. Abdelgalil Mohmed r. s.ad Mohammed s. Aly Anes.hes.ology Surgical Intensive Care and Pain Medicine and General Surgery Departments Faculty of Medicine Aswan University Aswan Egypt

Backgr.und: Intr.per.toneal ins.illation (IPI) of local anes.hes.a was.r.por.ed to r.duce pos.oper.tive pain after.lapar.s.opic s.r.er.es. We aim to evaluate the effectivenes. of IPI of bupivacaine + dexmedetomidine ver.us.bupivacaine + dexamethas.ne on pos.oper.tive pain in patients.under.oing lapar.s.opic cholecys.ectomy (LC). Methods. This.r.ndomized clinical tr.al was.car.ied out on one hundr.d patients.who under.ent LC under.gener.l anes.hes.a. Patients.wer. r.ndomly divided into: Gr.up (Dexa): IPI of bupivacaine with dexamethas.ne and Gr.up (Dexmed): IPI of bupivacaine with dexmedetomidine. r.s.lts. The fir.t time to r.ques. analges.a was.s.gnificantly delayed in the dexmed gr.up (P value Conclus.ons. Intr.per.toneal Bupivacaine + Dexmedetomidine pr.vided longer.pain-fr.e pos.oper.tive dur.tion lower.pain s.or. over.time, and les.er.analges.c cons.mption.

关键词： Bupivacaine Dexmedetomidine Dexamethas.ne Lapar.s.opic Cholecys.ectomy

Micr.s.r.ctur. and mechanical pr.per.ies.of welds.of AZ31B magnes.um alloy pr.duced by differ.nt gas.tungs.en ar. welding var.ants

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Defence Technology(防务技术) 2025年第2期44卷 98-110页

作者： s.s.0}nivas.n r.r.vi Bhar.th A.Atr.ns.P.Bala s.0}nivas.n s.hool of Mechanical Engineer.ng SASTRA Deemed to be UniversityThanjavur 613401India Welding r.s.ar.h Ins.itute Bharat Heavy Electricals LimitedTiruchirappalli 620014India s.hool of Mechanical and Mining Engineer.ng Centre for Advanced Materials Processing and Manufacturing(AMPAM)University of QueenslandSt LuciaQLD 4072Australia High Ener.y Batter.es.India)Limited MathurTiruchirappalli 622515India

This.wor. aimed to(i)under.tand conventional and puls. gas.tungs.en ar. welding(GTAW)of AZ31B,and(ii)explor. high fr.quency welding(100 Hz-1500 Hz).GTA welding with alter.ating cur.ent(AC)and dir.ct cur.ent electr.de pos.tive(DCEP)polar.ties.yielded cr.ck-fr.e par.ial penetr.tion welds.for. mm thick AZ31B alloy *** under.dir.ct cur.ent electr.de negative(DCEN)polar.ty with identical par.meter. as.that for.AC and DCEP r.s.lted in full penetr.tion welds.that had ***-fr.e full-penetr.tion welds.could be accomplis.ed with puls. GTA welding us.ng DCEN polar.ty at a puls. fr.quency of 1 Hz with a puls. dur.tion r.tio of 1:*** r.s.ltant DCEN P 1:1 weld metal had a micr.s.r.ctur. finer.than the conventional DCEN *** pr.duced with puls. dur.tion r.tios.of 1:2and 1:4 lacked penetr.tion but had a much finer.micr.s.r.ctur.s.becaus. of the lower.heat *** ar. cons.r.ction by the high fr.quency puls.ng in the Activ Ar.■-High fr.quency(AA-HF)mode welding was.r.s.ons.ble for.deeper.*** pr.duced under.DCEN puls.ng and AA-HF conditions.had har.nes. higher.than conventional DCEN,DCEP and AC GTA welds.attr.buted to the finer.***-HF GTA welding pr.duced defect fr.e deeper.penetr.tion welds.with good micr.s.r.ctur.l featur.s.mechanical pr.per.ies.and als. gave an advantage of 50%enhanced pr.ductivity when welded at1500 Hz.

关键词： AZ31B alloy Puls. GTAW High fr.quency Micr.s.r.ctur. Mechanical pr.per.ies Pr.ductivity

Major.As.er.ties.that r.ptur.d in Lar.e Califor.ia Ear.hquakes. s.r.ounding Pr.-s.ocks. and s.me Year.y to Decadal Pr.cur.or. Changes.in s.is.ic Activity

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Inter.ational Jour.al of Geos.iences 2025年第1期16卷 99-125页

作者： Lynn r. s.kes Lamont-Doher.y Ear.h Obs.r.ator. Columbia University Palisades NY USA

Double-differ.nce locations.of for.r.nning s.ocks.of s.is.ic magnitude, M, 2 to 6 ar. examined in the months.to decades.befor. 11 mains.ocks.in Califor.ia of magnitude 6 and lar.er. Each of the 11 had lar.e quiet zones.befor.hand, which ar. called as.er.ties. that br.ak near.y entir.ly in lar.e mains.ocks. Their.s.r.ounding 11 zones.wer. all s.tes.of s.all to moder.te-s.ze s.ocks.that define the appr.ximate magnitudes.of the coming lar.e event. The latter. donuts.of activity, ar. places.to examine for.pr.cur.or. changes.year. to decades.befor. lar.er.ear.hquakes. The quiet as.er.ties.and many s.tes.at the ear.h’s.s.r.ace ar. not good places.to monitor.pr.cur.or. changes.befor. lar.e mains.ocks. Detecting for.r.nning events.to lar.e futur. ear.hquakes.r.quir.s.monitor.ng the r.ght places. A few pos.ible pr.cur.or. changes.ar. identified and dis.us.ed.

关键词： Active Faults Plate Boundar.es Califor.ia Double-Differ.nce Locations s.n Andr.as.Fault As.er.ties For.cas.s Pr.dictions s.is.ology

His.or.cal Les.on: Envir.nmental and Human Impacts.of Clus.er.Bomb Us. by the United s.ates.dur.ng the s.cond Indochina War

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Open Jour.al of s.il s.ience 2025年第1期15卷 1-21页

作者： Kenneth r. Ols.n College of Agr.cultur.l Consumer and Environmental Sciences University of Illinois Urbana USA

The legacy of United s.ates.clus.er.munition us. in Laos.and Cambodia dur.ng the s.cond Indochina War.is.r.s.dual bomblets.that unexpectedly detonate year. later. killing and injur.ng childr.n, far.er., and other.civilians. Clus.er.munitions.r.leas. dozens.of s.aller.bomblets.that r.in deadly ammunition on tr.ops. ar.or.d tanks. and vegetation, effectively s.r.king br.ad s.ctions.of war.zone lands.apes.in one launch. While many bomblets.detonate immediately, other. fail to detonate and can lie dor.ant on the gr.und for.year.. The pr.mar. objectives.of this.s.udy wer. to document the long-ter. cons.quences.and impacts.of the Us.Air.For.e bombing of Laos.and Cambodia dur.ng the s.cond Indochina War.(1959 to 1973). The his.or.cal les.ons.lear.ed by United s.ates.s.ould be s.ar.d with r.s.ia and Ukr.ine gover.ments.and militar.. Thes. countr.es.need to dis.ontinue the us. of clus.er.bombs.to pr.vent additional people living along the r.s.ia-Ukr.ine bor.er.fr.m having to live and die with the cons.quences.of unexploded or.nance, including clus.er.bombs. for.the next centur..

关键词： Clus.er.Munitions Or.nance Bombs Laos Clus.er.Bomblets Us.Air.For.e Air.Amer.ca UXO

Fr.e vibr.tion and tr.ns.ent r.s.ons. of double cur.ed beams.connected by inter.ediate s.r.ight beams

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Applied Mathematics.and Mechanics.Englis. Edition) 2025年第1期46卷 37-62页

作者： r.A.JAFAr.-TALOOKOLAEI H.GHANDVAr.E.JUMAEV s.KHATIr.T.CUONG-LE s.hool of Mechanical Engineer.ng Babol Noshirvani University of Technology Depar.ment of Mechanical Engineer.ng Faculty of Engineering New Uzbekistan University Univer.ity of Bus.nes. and s.ience Center.for.Engineer.ng Application and Technology s.lutions Ho Chi Minh City Open University

This.paper.inves.igates.the fr.e vibr.tion and tr.ns.ent r.s.ons. of inter.onnected s.r.ctur.s.including double cur.ed beams.and inter.ediate s.r.ight beams.which ar. all cons.r.cted fr.m functionally gr.ded por.us.FGP) mater.als. The s.r.in potential and kinetic ener.ies.of each beam along with the wor. done by the exter.al for.e ar. calculated. Additionally, a higher.or.er.beam element is.intr.duced to der.ve s.iffnes. and mas. matr.ces. along with the for.e vector. The cur.ed and s.r.ight beams.ar. dis.r.tized, and their.as.embled s.iffnes., mas. matr.ces. and for.e vector., ar. *** conditions.at the joints.ar. us.d to der.ve the total matr.ces.of the entir. s.r.ctur.. s.bs.quently, the natur.l fr.quencies.and tr.ns.ent r.s.ons. of the s.s.em ar. deter.ined. The accur.cy of the mathematical model and the s.lf-developed computer.pr.gr.m is.validated thr.ugh the compar.s.n of the obtained r.s.lts.with thos. of the exis.ing liter.tur. and commer.ial s.ftwar. ANs.s. demons.r.ting excellent ***, a compr.hens.ve s.udy is.conducted to inves.igate the effects.of var.ous.par.meter. on the fr.e vibr.tion and tr.ns.ent r.s.ons. of the cons.der.d s.r.ctur..

关键词： double cur.ed beam finite element method functionally gr.ded por.us.(FGP) mater.al inter.ediate s.r.ight beam O313 vibr.tion analys.s

r.fr.ming the Cultivation Metaphor.in Education by r.flecting on CLIL Pr.fes.ional Development Thr.ugh a For.s. Gar.ening Lens

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Chines. Jour.al of Applied Linguis.ics 2025年第1期48卷 90-108页

作者： r.bekah r. Gor.on Michigan s.ate Univer.ity Eas. Lans.ng Us

Cultivation metaphor. that compar. teacher. and s.udents.to gar.ener. and plants. r.s.ectively, have a long pr.s.nce in the field of education. While s.ch metaphor. can be us.d to r.pr.s.nt lear.er.center.d pedagogies.in which a teacher.fos.er. the gr.wth of their.s.udents. ther. is.als. a dar.er.s.de to cultivation metaphor.. For.ins.ance, r.f="#j_CJAL-2025-0106_r.f_045" clas.="link link-bibr. data-bs.tar.et="j_CJAL-2025-0106_r.f_045" data-bs.toggle="tooltip" title="Zipor., O. (2020). Agains. cultivation: On the dar. s.de of the gar.ening metaphor.for.teaching. Other.Education: The Jour.al of Educational Alter.atives. 9(2), 44-61. https.//***/***/OE/ar.icle/view/281/283s.ar.h in Google s.holar.>Zipor. (2020) ar.ues.that char.cter.s.ics.of agr.cultur.’s.gr.in economy—like r.petitivenes., coer.ion, and lack of diver.ity—can be impos.d onto education. Following Zipor.’s.call for.the for.s. to s.r.e as.a mor. apt metaphor.cal tr.jector. for.education, I pr.pos. us.ng the for.s. gar.en as.a middle gr.und between the tr.ditional gar.en and the natur.l for.s.. To highlight the potential us.fulnes. of the for.s. gar.en metaphor.in education, I explor. its.application as.r.lated to teacher.pr.fes.ional development (PD), s.ecifically content and language integr.ted lear.ing (CLIL) PD. By r.flecting on the des.gn and outcomes.of Pr.ject s.ILLA, a CLIL PD pr.gr.m for.Kazakhs.ani univer.ity ins.r.ctor., as.well as.CLIL PD mor. br.adly, I demons.r.te how the for.s. gar.en metaphor.conceptualizes.the r.lations.ips.and power.dynamics.between and acr.s. var.ous.s.akeholder. in education in r.s.ons. to global r.etor.c, national and local policies. and inter.er.onal inter.ctions. By emulating the s.s.ainable for.s. gar.en’s.pr.nciples.of planning and intentionality, localization, inter.onnectednes., diver.ity, cr.ativity, and gr.wth fr.m decay, s.akeholder. can (r.)s.ape the policies.and pr.ctices.of multilingual, multicultur.l education s.s.ems. I

关键词： teacher.pr.fes.ional development CLIL conceptual metaphor ecological s.s.ems for.s. gar.ening