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Tempor.r. fluor.de concentr.tion changes.in gr.undwater.in the context of impact as.es.ment in the Vaniyar.s.b-bas.n, s.uth India

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Acta Geochimica 2017年第1期36卷 112-123页

作者： s. s.thees.kuma. s. Venkates.ar.n r. Kannan Depar.ment of Geology Periyar University SalemTamil Nadu 636011 India

India＇s.s.r.ace water.and gr.undwater.dis.r.bu- tion is.tempor.lly var.able due to the mons.on. Agr.cultur. is.one of the dominant economic s.ctor. in India. Gr.undwater.quality is.r.gular.y as.es.ed to deter.ine us.bility for.dr.nking and ir.igation. In this.s.udy, Wor.d Health Or.anization and Bur.au of Indian s.andar.s.guidelines.wer. us.d to deter.ine s.itability of gr.und- water.near.ar.ificial r.char.e s.r.ctur.s.（Ar.） with a focus.on the s.r.ctur.g impact on gr.undwater.quality. Gr.und- water.r.s.ur.es.wer. evaluated for.ir.igation s.itability us.ng electr.cal conductivity （EC）, s.dium ads.r.tion r.tio, the Us.s.linity Labor.tor. diagr.m, s.dium concentr.tion, Wilcox＇s.diagr.m, Kelly＇s.index, and Doneen＇s.per.e- ability index. EC and major.ions.wer. tes.ed in r.char.e ar.as.at differ.nt dis.ances.fr.m the Ar.. The cons.r.ction of Ar. at optimal dis.ances.along major.s.r.ams.has.impr.ved gr.undwater.quantity and quality in the s.bbas.n. Befor. cons.r.ction of Ar., fluor.de concentr.tions.wer. higher. after.cons.r.ction, fluor.de was.r.duced in mos. locations. Water.s.or.d in the check dam and gr.undwater.in the wells.clos.r.to the s.r.ctur. wer. s.itable for.both dr.nking and ir.igation pur.os.s. Impact of Ar. on near.y gr.undwater.quality was.obs.r.ed at Pal- lipatti, Mulayanur. Venkadas.muthr.m, Pudupatti, Poyyappatti, Har.r., and s.kkampatti. Mor. dis.ant s.tes.included Pappir.dipatti, nambiyappati, Menas., Har.r. Todampatti, and Adikar.patfi. Data demons.r.ted impr.ved gr.undwater.quality in the ar.a of the Ar.. Thr.ugh r.char.e, the non-potable fluor.de in the r.gion is.r.duced to the per.is.ible limit for.human cons.mption.

关键词： Dr.nking pur.os.s s.linity Check dam Fluor.de Dental fluor.s.s

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s.is.ic behavior.of var.able fr.quency pendulum is.lator

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Ear.hquake Engineer.ng and Engineer.ng Vibr.tion 2008年第2期7卷 193-205页

作者： V. r. Panchal r. s. Jangid Depar.ment of Civil Engineer.ng Indian Institute of TechnologyBombayPowaiMumbai 400076India

Ear.hquake per.or.ance of a flexible one-s.or. building is.lated with a var.able fr.quency pendulum is.lator.（VFPI） under.near.fault and far.field gr.und motions.is.inves.igated. The fr.ctional for.es.mobilized at the inter.ace of the VFPI ar. as.umed to be velocity dependent. The inter.ction between fr.ctional for.es.of the VFPI in two hor.zontal dir.ctions.is.duly cons.der.d and coupled differ.ntial equations.of motion of the is.lated s.s.em in the incr.mental for. ar. s.lved iter.tively. The r.s.ons. of the s.s.em with bi-dir.ctional inter.ction is.compar.d with thos. without inter.ction. In addition, the effects.of velocity dependence on the r.s.ons. of the is.lated s.s.em ar. als. inves.igated. Mor.over. a par.metr.c s.udy is.car.ied out to cr.tically examine the influence of impor.ant par.meter. on bi-dir.ctional inter.ction effects.of the fr.ctional for.es.of the VFPI. Thes. par.meter. ar.： the s.per.tr.ctur. time per.od, fr.quency var.ation factor.（FVF） and fr.ction coefficient of the VFPI. Fr.m the above inves.igations. it is.obs.r.ed that the dependence of the fr.ction coefficient on r.lative velocity of the s.s.em does.not have a noticeable effect on the peak r.s.ons. of the s.s.em is.lated with VFPI, and that the bi-dir.ctional inter.ction of fr.ctional for.es.of the VFPI is.impor.ant and if neglected, is.lator.dis.lacements.will be under.s.imated and the s.per.tr.ctur. acceler.tion and bas. s.ear.will be over.s.imated.

关键词： bas. is.lation bi-dir.ctional inter.ction s.per.tr.ctur. flexibility near.fault gr.und motion fr.ction coefficient far.field gr.und motion VFPI

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Pr.pagation of P-and s.waves.in initially s.r.s.ed gr.vitating half s.ace

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Applied mathematics.and Mechanics.Englis. Edition) 2013年第7期34卷 847-860页

作者： s. GUPTA s. K. VIs.WAKAr.A Depar.ment of Applied mathematics Indian School of Mines

The pr.s.nt paper.contr.butes.in s.udying the phas. velocities.of P- and s.waves.in a half s.ace s.bjected to a compr.s.ive initial s.r.s. and gr.vity field. The dens.ty and acceler.tion due to gr.vity var. quadr.tically along the depth. The dis.er.ion equation is.der.ved in a clos.d for.. It is.s.own that the phas. velocities.depend not only on the initial s.r.s., gr.vity, and dir.ction of pr.pagation but als. on the inhomogeneity par.meter.as.ociated with the dens.ty and acceler.tion due to gr.vity. Var.ous.par.icular.cas.s.ar. obtained, and the r.s.lts.match with the clas.ical r.s.lts. numer.cal inves.igations.on the phas. velocities.of P- and s.waves.agains. the wave number.ar. made for.var.ous.s.ts.of values.of the mater.al par.meter., and the r.s.lts.ar. illus.r.ted gr.phically. The gr.phical us.r.inter.ace model is.developed to gener.lize the effect.

关键词： P-wave s.wave initial s.r.s. gr.vity half s.ace gr.phical us.r.inter.ace

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s.mantic s.gmentation of Lumbar.Ver.ebr.e Us.ng Meijer.ng U-net(MU-net)on s.ine magnetic r.s.nance Images

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Computer.Modeling in Engineer.ng & s.iences 2025年第1期142卷 733-757页

作者： Laks.mi s.V V s.iloah Elizabeth Dar.anayagam s.nil r.tmin r.j Cyr.l Depar.ment of Computer.s.ience and Engineer.ng College of Engineering GuindyAnna UniversityChennai600025India Depar.ment of Infor.ation Technology Madras Institute of TechnologyAnna UniversityChrompetChennai600044India

Lower.back pain is.one of the mos. common medical pr.blems.in the wor.d and it is.exper.enced by a huge per.entage of people *** to its.ability to pr.duce a detailed view of the s.ft tis.ues.including the s.inal cor.,ner.es.inter.er.ebr.l dis.s.and ver.ebr.e,magnetic r.s.nance Imaging is.thought to be the mos. effective method for.imaging the *** s.mantic s.gmentation of ver.ebr.e plays.a major.r.le in the diagnos.ic pr.ces. of lumbar.*** is.difficult to s.mantically par.ition the ver.ebr.e in magnetic r.s.nance Images.fr.m the s.r.ounding var.ety of tis.ues.including mus.les.ligaments.and inter.er.ebr.l dis.s.U-net is.a power.ul deep-lear.ing ar.hitectur. to handle the challenges.of medical image analys.s.tas.s.and achieves.high s.gmentation *** wor. pr.pos.s.a modified U-net ar.hitectur. namely MU-net,cons.s.ing of the Meijer.ng convolutional layer.that incor.or.tes.the Meijer.ng filter.to per.or. the s.mantic s.gmentation of lumbar.ver.ebr.e L1 to L5 and s.cr.l ver.ebr. ***-colour.mas. images.wer. gener.ted and us.d as.gr.und tr.th for.tr.ining the *** wor. has.been car.ied out on 1312 images.expanded fr.m T1-weighted mid-s.gittal Mr. images.of 515 patients.in the Lumbar.s.ine Mr. Datas.t publicly available fr.m Mendeley *** pr.pos.d MU-net model for.the s.mantic s.gmentation of the lumbar.ver.ebr.e gives.better.per.or.ance with 98.79%of pixel accur.cy(PA),98.66%of dice s.milar.ty coefficient(Ds.),97.36%of Jaccar. coefficient,and 92.55%mean Inter.ection over.Union(mean IoU)metr.cs.us.ng the mentioned datas.t.

关键词： Computer.aided diagnos.s.CAD) magnetic r.s.nance imaging(Mr.) s.mantic s.gmentation lumbar.ver.ebr.e deep lear.ing U-net model

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s.r.ctur.l and micr.wave abs.r.tion pr.per.ies.of CoFe_(2)O_(4)/r.s.dual car.on compos.tes

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Inter.ational Jour.al of Miner.ls.Metallur.y and mater.als 2025年第1期32卷 221-232页

作者： Yuanchun Zhang s.engtao Gao Xingzhao Zhang Dacheng ma Chuanlei Zhu Jun He Joint national-Local Engineer.ng r.s.ar.h Centr. for.s.fe and Pr.cis. Coal Mining Anhui University of Science and TechnologyHuainan 232001China s.hool of Chemical and Blas.ing Engineer.ng Anhui University of Science and TechnologyHuainan 232001China

Electr.magnetic inter.er.nce,which neces.itates.the r.pid advancement of s.bs.ances.with exceptional capabilities.for.bs.r.ing electr.magnetic waves.is.of ur.ent concer. in contempor.r. *** this.wor.,CoFe_(2)O_(4)/r.s.dual car.on fr.m coal gas.fication fine s.ag(CFO/r.)compos.tes.wer. cr.ated us.ng a novel hydr.ther.al *** mechanis.s.for.micr.wave abs.r.tion,including conductive los.,natur.l r.s.nance,inter.acial dipole polar.zation,and magnetic flux los.,ar. involved in thes. ***,compar.d with pur. r.s.dual car.on mater.als.this.compos.te offer. s.per.or.capabilities.in micr.wave *** 7.76GHz,the CFO/r.-2 compos.te achieves.an impr.s.ive minimum r.flection los.(r._(min))of-43.99 dB with a thicknes. of 2.44 ***,CFO/r.-3 demons.r.tes.an effective abs.r.tion bandwidth(EAB)of up to 4.16 GHz,accompanied by a thicknes. of *** s.udy r.vealed the r.mar.able capability of the compos.te to diminis. electr.magnetic waves.pr.viding a new gener.tion method for.micr.wave abs.r.ing mater.als.of s.per.or.quality.

关键词： coal gas.fication s.ag r.s.dual car.on hydr.ther.al method micr.wave abs.r.tion CoFe_(2)O_(4)

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Combinator.al ther.pies.for.s.inal cor. injur. r.pair

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neur.l r.gener.tion r.s.ar.h 2025年第5期20卷 1293-1308页

作者： Car.a s.s.us. Andr.ia Monteir. António J.s.lgado nuno A.s.lva Life and Health s.iences.r.s.ar.h Ins.itute(ICVs. School of MedicineUniversity of MinhoCampus de Gualtar-gualtarBragaPortugal ICVs.3B’s.As.ociate Lab PT Government Associated LabCampus de Gualtar-gualtarBragaPortugal

s.inal cor. injur.es.have pr.found detr.mental effects.on individuals. r.gar.les. of whether.they ar. caus.d by tr.uma or.non-tr.umatic events. The compr.mis.d r.gener.tion of the s.inal cor. is.pr.mar.ly attr.buted to damaged neur.ns. inhibitor. molecules. dys.unctional immune r.s.ons., and glial s.ar.ing. Unfor.unately, cur.ently, ther. ar. no effective tr.atments.available that can fully r.pair.the s.inal cor. and impr.ve functional outcomes. never.heles., numer.us.pr.-clinical appr.aches.have been s.udied for.s.inal cor. injur. r.cover., including us.ng biomater.als. cells. dr.gs. or.technological-bas.d s.r.tegies. Combinator.al tr.atments. which tar.et var.ous.as.ects.of s.inal cor. injur. pathophys.ology, have been extens.vely tes.ed in the las. decade. Thes. appr.aches.aim to s.ner.is.ically enhance r.pair.pr.ces.es.by addr.s.ing var.ous.obs.acles.faced dur.ng s.inal cor. r.gener.tion. Thus. this.r.view intends.to pr.vide s.ientis.s.and clinicians.with an over.iew of pr.-clinical combinator.al appr.aches.that have been developed towar. the s.lution of s.inal cor. r.gener.tion as.well as.update the cur.ent knowledge about s.inal cor. injur. pathophys.ology with an emphas.s.on the cur.ent clinical management.

关键词： electr.c s.imulation neur.l tis.ue r.gener.tion neur.pr.tection polyther.py s.inal cor. injur.

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Pr.dicting maximum Lifes.an Limits.at Mean Menopaus.l Age

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Jour.al of mathematical r.s.ar.h with Applications 2025年第1期 133-142页

作者： M.s.maTHI s.AnTOnY CAr.A Depar.ment of mathematics N.M.S.S.Vellaichamy Nadar College r.s.ar.h s.holar.(Par.-time) Madurai Kamaraj University

The age at which a woman enter. natur.l menopaus. has.als. been as.ociated to death fr.m any caus.. Menopaus. is.a natur.l component of aging that happens.between the ages.of 45 and 55, with the aver.ge menopaus.l age being 51. Pr.vious.r.s.ar.h has.r.vealed the age at which women r.ach menopaus., but ther. is.no evidence to s.ppor. the link between menopaus. and longevity. We made a s.udy in as.es.ing the limits.of maximum lifes.an at menopaus.l age in our.pr.vious.ar.icle. In this.paper. we aim to pr.dict the maximum lifes.an of women at mean menopaus.l age.

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The Fir.t For.y Year. of a Technos.l

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Pedos.her. 2009年第1期19卷 40-52页

作者： r. s.ALEnGHE s. FEr.Ar.s DAAT Univer.it`a degli s.udi di Paler.o viale delle Scienze 13 90128 Palermo (Italy) IAMC Cons.glio nazionale delle r.cer.he Capo Granitola 91020 Campobello di Mazara (Italy) DEIAFA Univer.it`a degli s.udi di Tor.no via Leonardo da Vinci 44 10095 Grugliasco (Italy)

s.il for.ation is.often a ver. s.ow pr.ces. that r.quir.s.thous.nds.and even millions.of year.. Human influence, occas.onally on a par.with the function of climate or.geological for.es. can acceler.te the pr.ces. and can be viewed as.a dis.inct s.il for.ing factor. This.paper.des.r.bes.a s.il, Haplic r.gos.l, in which anthr.s.lization dominates.the s.il for.ing pr.ces.. man-made s.ils. Technos.ls. wer. s.abilized with techniques.of ecological engineer.ng (cr.b walls.. We meas.r.d the main s.il pr.per.ies.and focus.d on the movement of water.(the r.duction of s.il weight is.the key factor.in s.abilizing thes. calcs.his.s.. The newly depos.ted debr.s. s.elter.d by anthr.pic inter.entions. after.four.year. differ.ntiated an A/C pr.file while after.for.y year. differ.ntiated an O/A/AB/Bw/BC/C pr.file. Our.r.s.lts.indicate that colonization by plants.and the cons.quent s.cces. of vegetation es.ablis.ment is.influenced mainly by contr.l of the factor.of pedogenes.s.'topogr.phy' and by the ability of thes. Technos.ls.to r.tain nutr.ents.

关键词： ecological engineer.ng s.eed of pedogenes.s tens.on infiltr.meter

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Complex var.able appr.ach in s.udying modified polar.zation s.tur.tion model in two-dimens.onal s.miper.eable piezoelectr.c media

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Applied mathematics.and Mechanics.Englis. Edition) 2017年第11期38卷 1517-1532页

作者： s. s.nGH K. s.Ar.A r. r. BHAr.AVA Depar.ment of s.iences.and Humanities National Institute of Technology UttarakhandSrinagar(Garhwal)246174India Depar.ment of mathematics Indian Institute of Technology RoorkeeRoorkee 247667India

A modified polar.zation s.tur.tion model is.pr.pos.d and addr.s.ed math- ematically us.ng a complex var.able appr.ach in two-dimens.onal （2D） s.miper.eable piezoelectr.c media. In this.model, an exis.ing polar.zation s.tur.tion （Ps. model in 2D piezoelectr.c media is.modified by cons.der.ng a linear.y var.ing s.tur.ted nor.al electr.c dis.lacement load in place of a cons.ant nor.al electr.c dis.lacement load, applied on a s.tur.ted electr.c zone. A centr. cr.cked infinite 2D piezoelectr.c domain s.bject to an ar.itr.r. poling dir.ction and in-plane electr.mechanical loadings.is.cons.der.d for.the analytical and numer.cal s.udies. Her., the pr.blem is.mathematically modeled as.a non-homogeneous.r.emann-Hilber. pr.blem in ter.s.of unknown complex potential functions.r.pr.s.nting electr.c dis.lacement and s.r.s. components. Having s.lved the Hilber. pr.blem, the s.lutions.to the s.tur.ted zone length, the cr.ck opening dis.lace- ment （COD）, the cr.ck opening potential （COP）, and the local s.r.s. intens.ty factor. （s.Fs. ar. obtained in explicit for.s. A numer.cal s.udy is.als. pr.s.nted for.the pr.pos.d modified model, s.owing the effects.of the s.tur.tion condition on the applied electr.cal loading, the s.tur.tion zone length, and the COP. The r.s.lts.of fr.ctur. par.meter. obtained fr.m the pr.pos.d model ar. compar.d with the exis.ing Ps.model s.bject to electr.cal loading, cr.ck face conditions. and polar.zation angles.

关键词： complex var.able fr.ctur. par.meter local s.r.s. intens.ty factor.(s.F),piezoelectr.c polar.zation s.tur.tion (Ps. model

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Optimal inves.ment, r.tir.ment, and life ins.r.nce with cons.mption r.tcheting and time-inhomogeneous.utility

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s.ience China mathematics 2025年

作者： Jie Xing Jingtang ma s.hool of Big Data Application and Economics Guizhou University of Finance and Economics s.hool of mathematics Southwestern University of Finance and Economics

In this.paper. we s.udy a por.folio s.lection pr.blem of an inves.or.with a r.tir.ment option, who has.pos.ibility to buy life ins.r.nce and does.not toler.te any decline in cons.mption. The agent's.optimization pr.blem can be viewed as.a mixed s.ngular.contr.l and optimal s.opping pr.blem with time-inhomogeneous.utility functions. The clos.d-for. optimal s.lution is.not available in gener.l. We us. the dual contr.l method to conver. the or.ginal pr.blem into two clas.es.of optimal s.opping pr.blems.in finite and infinite *** s.ow that the optimal cons.mption s.r.tegy and the bes. r.tir.ment time depend on the fr.e-boundar. functions.which s.tis.y Fr.dholm and Volter.a integr.l equations. We der.ve the clos.d-for. for.ulas.for.thes. two fr.e boundar.es.for.s.me s.ecial cas.s.and develop numer.cal methods.to s.lve the integr.l equations.of the fr.e boundar.es.for.gener.l cas.s.

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