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Tr.nsi.nt elastogr.phy and di.fusi.n-wei.hted m.gneti. r.sonance i.0}gi.g for.assessm.nt of li.er.fi.r.si. i. chi.dr.n wi.h chr.ni. hepati.i. C

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Wor.d Jour.al of Vi.ology 2024年第3期13卷 89-97页

作者： m.ham.d A El-Gui.di.Ali. A Allam.Ahm.d A abdel-r.zek Gi.an A Sobhy m.nan E Salem.m.ham.d A abd-Allah m.stafa m.Si.a Pedi.tr.0} Hepatology Gastroenterology and NutritionNational Liver InstituteMenoufia UniversityShebin El-Koom 32511MenoufiaEgypt Depar.m.nt of Di.gnosti. r.di.logy Mansoura Faculty MedicineMansoura 13551Egypt

BACKGr.UnD Chr.ni. hepati.i. C(CHC)i. a health bur.en wi.h consequent m.r.i.i.y and *** bi.psy i. the gold standar. for.evaluati.g fi.r.si. and assessi.g di.ease sever.0}y and pr.gnosti. pur.oses *** alter.-ati.es for.li.er.bi.psy such as tr.nsi.nt elastogr.phy(TE)and di.fusi.n-wei.hted m.gneti. r.sonance i.0}gi.g(DW-m.i.ar. cr.0}i.al *** To evaluate TE and DW-m.i.as noni.vasi.e tools for.pr.di.ti.g li.er.fi.r.si. i. chi.dr.n wi.h *** Thi. pr.specti.e cr.ss-secti.nal study i.i.i.lly r.cr.i.ed 100 chi.dr.n wi.h CHC vi.us ***-four.chi.dr.n com.leted the full set of i.vesti.ati.ns i.cludi.g li.er.sti.fness m.asur.m.nt(LSm.usi.g TE and m.asur.m.nt of appar.nt di.fusi.n coeffi.i.nt(ADC)of the li.er.and spleen usi.g *** bi.psi.s wer. evaluated for.fi.r.si. usi.g i.hak scor.0}g *** and li.er.and spleen ADC wer. com.ar.d i. di.fer.nt fi.r.si. stages and cor.elati.n analysi. was per.or.5}d wi.h hi.topathologi.al fi.di.gs and other.labor.tor. *** m.st pati.nts had m.der.te fi.r.si.(73.5%)whi.e 26.5%had m.ld *** had sever. fi.r.si. or.*** m.jor.0}y(68.8%)had m.ld acti.i.y,whi.e only 7.8%had m.der.te *** scor.s had a si.ni.i.ant di.ect cor.elati.n wi.h LSm.P=0.008)and wer. negati.ely cor.elated wi.h both li.er.and spleen ADC but wi.h no stati.ti.al si.ni.i.ance(P=0.086 and P=0.145,r.specti.ely).Si.0}lar.y,hi.topatho-logi.al acti.i.y cor.elated si.ni.i.antly wi.h LSm.P=0.002)but not wi.h li.er.or.spleen ADC(P=0.84 and 0.98 r.specti.ely).LSm.and li.er.ADC wer. able to si.ni.i.antly di.cr.0}0}nate F3 fr.m.lower.fi.r.si. stages(ar.a under.the cur.e=0.700 and 0.747,r.specti.ely)wi.h a better.per.or.5}nce of li.er.*** TE and li.er.ADC wer. helpful i. pr.di.ti.g si.ni.i.ant fi.r.si. i. chi.dr.n wi.h chr.ni. hepati.i. C vi.us i.fecti.n wi.h a better.per.or.5}nce of li.er.ADC.

关键词： Appar.nt di.fusi.n coeffi.i.nt Chr.ni. hepati.i. C Di.fusi.n-wei.hted m.gneti. r.sonance i.0}gi.g Li.er.fi.r.si. Li.er.sti.fness Tr.nsi.nt elastogr.phy

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Extr.cti.n of cer.0}m.Ⅳ) usi.g tr.0}utyl phosphate i.0}r.gnated r.si. fr.m.ni.r.0} aci. m.di.m

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Tr.nsacti.ns of nonfer.ous m.tals Soci.ty of Chi.a 2012年第1期22卷 206-214页

作者： O.S.HELALY m.S.abd EL-GHAnY m.i.m.USTAFA A.H.ABUZAi. n.m.abd EL-m.nEm.i.m.i.m.i. nuclear.m.ter.1}ls Author.1}y P.O.Box 530 El-MaadiCairoEgypt Faculty of Engi.eer.0}g Chem.Eng.Dept.Cairo UniversityGizaEgypt

Tr.0}utyl phosphate （TBP） solvent was used for.i.0}r.gnati.n i.to Am.er.i.e XAD-16 noni.ni. polym.r.0} r.si. beads usi.g the wet m.thod to pr.par. solvent i.0}r.gnated r.si. （Si.）. Undi.uted TBP i. a r.ti. to the r.si. suppor. （volum. to m.ss） of 6.0 at r.om.tem.er.tur. （r.） i. 24 h was i.0}r.gnated the r.si. wi.h a m.ss r.ti. of 1.944, whi.e the pr.par.d gr.ss sam.le of Si. at the r.ti. of solvent to r.si. of 3.0 was i.0}r.gnated wi.h a m.ss r.ti. of 1.88. Cer.0}m.Ⅳ） oxi.e concentr.te, pr.par.d fr.m.cr.de Egypti.n m.nazi.e sand, contai.i.g 37% cer.0}m. 1.6% thor.0}m.and about 40% the other.tr.0}alent r.r. ear.h oxi.es, was used to pr.par. cer.0}m.Ⅳ） ni.r.te soluti.n for.extr.cti.n usi.g the pr.par.d Si.. The i.0}r.gnated r.si. was sati.factor. for.Ce（Ⅳ） extr.cti.n fr.m.ni.r.0} aci. m.di.m.at r.om.tem.er.tur.. Cer.0}m.loadi.g capaci.y of the i.0}r.gnated r.si. r.ached 95.6% of the calculated theor.ti.al capaci.y （173 g/kg （Ce/Si.）） under.the condi.i.ns of 51.57 g/L cer.0}m.and 2.48 g/L thor.0}m. 5.0 m.l/L fr.e ni.r.0} aci., soluti.n to r.si. r.ti. of 10.0 and contacti.g the phases for.5.0 m.n. The loadi.g capaci.y r.ached 98.75% when cer.0}m.concentr.ti.n was i.cr.ased to 91.43 g/L under.the sam. condi.i.ns.

关键词： cer.0}m.(Ⅳ) cr.de m.nazi.e sand tr.0}utyl phosphate i.0}r.gnated r.si. extr.cti.n ni.r.0} aci. m.di.m

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PAHs i. Sedi.0}nts along the Sem.-Closed Ar.as of Alexandr.0}, Egypt

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Jour.al of Envi.onm.ntal Pr.tecti.n 2011年第6期2卷 700-709页

作者： m.ham.d A. Shr.adah Tar.k O Sai. m.ham.d i. abd El m.nem.eiman m. i. Fathallah m.ham.d E m.hm.ud nati.nal i.sti.ute of Oceanogr.phy and Fi.her.0}s P.O 4053 Kayet Bay Anfushi Alexandria Egypt

Sedi.0}nt sam.les wer. collected fr.m.49 sam.li.g stati.ns along the sem.-closed ar.as of Alexandr.0} coasts, Egypt. Total concentr.ti.ns of 15 out of 16 EPA-PAHs i. sedi.0}nts wer. var.0}d fr.m.4.2 to 886 ng.g–1 wi.h an aver.ge value of 176 ng.g–1 (dr. wt). The aver.ge total or.ani. car.on (TOC) per.ent was var.0}d fr.m.0.04 to 7.65%. Hi.her.concentr.ti.n of total pyr.lyti. hydr.car.ons (∑COm.) than total fossi. hydr.car.ons (∑COm.), declar.d that atm.spher.0} fall-out i. the si.ni.i.ant sour.e of PAHs to m.r.0}e sedi.0}nts of the sem.-closed ar.a of Alexandr.0}. The selected m.r.ed com.ounds and speci.l PAHs com.ound r.ti.s (phenanthr.ne/anthr.cene;fluor.nthene/pyr.ne;∑COm./ ∑EPA-PAHs) suggest the pyr.geni. or.0}i.s, especi.lly tr.ffi. exhausts, ar. the dom.nant sour.es of PAHs i. m.st locati.ns. i.ter.er.nces of r.ther.petr.geni. and pyr.lyti. PAH contam.nati.ns wer. noti.ed i. the har.our., especi.lly m.r.0}e ar.a due to petr.leum.pr.ducts deli.er.0}s and fuel com.usti.n em.ssi.ns fr.m.the shi.s stayi.g alongsi.e the quays.

关键词： Sur.ace Sedi.0}nt PAHs Alexandr.0} Egypt GC-m.

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i.undati.e fi.ld r.leases and evaluati.n of thr.e pr.dator. for.Bem.si. tabaci.（Hem.pter.： Aleyr.di.ae） m.nagem.nt i. thr.e vegetable cr.ps

引用

i.sect Sci.nce 2011年第2期18卷 195-202页

作者： Alvi. m. Si.0}ons Shaaban abd-r.bou USDA ARS U.S. Vegetable Laboratory Charleston South Carolina Ar. PPRI Dokki Giza Egypt

The sweetpotato whi.efly, Bem.si. tabaci.（Gennadi.s）（Hem.pter.： Aleyr.di.ae）, i. a global pest on num.r.us cr.ps, i.cludi.g vegetables. Weekly i.undati.e r.leases of a cocci.elli. pr.dator.（Cocci.ella undeci.0}unctata L. [Coleopter.： Cocci.elli.ae]）, a com.on gr.en lacewi.g pr.dator.（Chr.soper.a car.ea Stephen [neur.pter.： Chr.sopi.ae]）, and a m.r.0} pr.dator.（m.cr.lophus cali.i.osus [Wagner. [Hem.pter.： m.r.0}ae]） wer. i.dependently m.de i. thr.e vegetable cr.ps （cabbage [Br.ssi.a oler.cea var. capi.ata L.], cucum.er.[Cucum.s sati.us L.], and squash [Cucur.i.a pepo L.]） for.the m.nagem.nt of the sweetpotato whi.efly. Appr.xi.0}tely 1 m.lli.n to 2.5 m.lli.n lar.ae or.nym.hs of each pr.dator.wer. r.leased i. the vegetable cr.ps dur.0}g 20 weeks. Whi.efly populati.ns wer. r.duced by ≈ 25%-45% dur.0}g m.st of the season i. each cr.p wher. each pr.dator.was r.leased. The effect of each pr.dator.was si.0}lar.on whi.efly populati.n r.ducti.n. Late i. the season （October. when whi.efly populati.ns wer. low, gener.lly no benefi. was obtai.ed fr.m.r.leasi.g the pr.dator.. num.er. of pr.dator. r.cover.d dur.0}g sam.li.g i. all cr.ps wer. gr.atest for.C. car.ea, but thi. cor.esponded wi.h the fact that m.r. i.di.i.uals of thi. pr.dator.wer. r.leased than any other.pr.dator.i. the exper.0}0}nt. These r.sults help defi.e the uti.i.y of these natur.l enem.es for.m.nagi.g B. tabaci.i. vegetable cr.ps.

关键词： Bem.si. tabaci Chr.soper.a car.ea Cocci.ella undeci.0}unctata m.cr.lophus cali.i.osus i.undati.e r.lease sweetpotato whi.efly

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Tr.atm.nt and pr.venti.n of epi.epsy i. onchocer.i.si.-endem.c ar.as i. ur.ently needed

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i.fecti.us Di.eases of Pover.y 2024年第1期13卷 85-89页

作者： r.ber. Colebunder. Joseph nelson Si.we Fodjo Oli.i. Kam.en Lui.-Jor.e Am.r.l Am.er.Hader.3}nn Chi.r. Tr.vi.an m.r. J.Taylor.Juli. Gaugli.z Achi.0}Hoer.uf Yasuaki.Sato Katja Polm.n m.r.0}-Glor.0} Basanez Dan Bhwana Thom.on Lakwo Gasi.0}abd-Elfar.g Sebasti.n D.Pi.n Global Health i.sti.ute University of AntwerpAntwerpBelgium Depar.m.nt of neur.logy Heilig Hart ZiekenhuisLierBelgium Depar.m.nt of Publi. Health Institute of Tropical MedicineAntwerpBelgium Li.er.ool School of Tr.pi.al m.di.i.e LiverpoolUK Depar.m.nt of Com.uter.Sci.nce University of AntwerpAntwerpBelgium i.sti.ute of m.di.al m.cr.bi.logy Immunology and ParasitologyUniversity Hospital BonnBonnGermany Ger.0}n Center.for.i.fecti.n r.sear.h(DZi.) Partner Site Bonn-CologneBonnGermany School of Global Hum.ni.i.s and Soci.l Sci.nces Nagasaki UniversityNagasakiJapan m.C Centr. for.Global i.fecti.us Di.ease Analysi. and London Centr. for.neglected Tr.pi.alDi.ease r.sear.h Department of Infectious Disease EpidemiologySchool of Public HealthImperial College LondonLondonUK nati.nal i.sti.ute for.m.di.al r.sear.h TangaTanzania Vector.Contr.l Di.i.i.n Ministry of HealthKampalaUganda School of Publi. Health University of JubaJubaSouth Sudan Access for.Hum.ni.y JubaSouth Sudan Fr.nch nati.nal r.sear.h i.sti.ute for.Sustai.able Developm.nt MontpellierFrance

Backgr.und Ther. i. i.cr.asi.g epi.em.ologi.al evi.ence suppor.i.g the associ.ti.n between onchocer.i.si. and sei.ur.s, r.i.for.i.g the concept of onchocer.i.si.-associ.ted epi.epsy (OAE). The ai.0}of thi. paper.i. to pr.vi.e an update on the new knowledge about OAE and to pr.pose r.com.endati.ns to the Wor.d Health Or.ani.ati.n how to addr.ss thi. publi. health *** text Dur.0}g the 2nd i.ter.ati.nal Wor.shop on OAE held on 19-21 Septem.er. 2023, i. Antwer., Belgi.m. par.i.i.ants r.cogni.ed OAE as a substanti.l yet neglected publi. health pr.blem. par.i.ular.y i. ar.as of sub-Sahar.n Afr.0}a wher. onchocer.i.si. r.m.i.s hyper.ndem.c. Evi.ence fr.m.pr.specti.e populati.n-based studi.s suggest that str.ngtheni.g onchocer.i.si. eli.0}nati.n effor.s leads to a si.ni.i.ant r.ducti.n of OAE i.ci.ence. Ther. i. a need to vali.ate an OAE case defi.i.i.n to esti.0}te the bur.en of di.ease and i.enti.y onchocer.i.si.-endem.c ar.as r.qui.i.g i.tensi.i.ati.n of onchocer.i.si. eli.0}nati.n pr.gr.m.es and i.tegr.ti.n of epi.epsy car.. i. i. expected that r.i.i.g awar.ness about OAE wi.l boost the populati.n uptake of i.er.4}cti.. The i.0}lem.ntati.n of a com.uni.y-based epi.epsy tr.atm.nt pr.gr.m.e offer.0}g fr.e anti.sei.ur. m.di.ati.ns (ASm.) has shown hi.h effecti.eness i. r.duci.g the fr.quency of sei.ur.s and i.0}r.vi.g the over.ll quali.y of li.e of people wi.h *** To r.duce OAE bur.en, enhanced collabor.ti.n between onchocer.i.si. and m.ntal health pr.gr.m.es at com.uni.y, nati.nal, and i.ter.ati.nal levels i. r.qui.ed. Ur.ent effor.s ar. needed to ensur. the uni.ter.upted pr.vi.i.n of fr.e ASm. i. onchocer.i.si.-endem.c ar.as. Fur.her.4}r., OAE should be i.cluded i. the quanti.i.ati.n of the onchocer.i.si. di.ease bur.en.

关键词： Onchocer.i.si. m.r.i.i.y Bur.en of di.ease Pr.venti.n i.er.1}cti. Epi.epsy noddi.g syndr.m. Tr.atm.nt Chi.dr.n Poli.y

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Pr.par.ti.n and char.cter.0}ati.n of eco-fr.0}ndly poly(p-phenylenedi.m.ne) and i.s com.osi.e wi.h chi.osan for.r.m.val of copper.i.ns fr.m.aqueous soluti.ns

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Tr.nsacti.ns of nonfer.ous m.tals Soci.ty of Chi.a 2015年第11期25卷 3808-3819页

作者： n.A.abdELWAHAB E.A.AL-ASHKAr.m.A.abd EL-GHAFFAr Polym.r. and Pi.m.nts Depar.m.nt National Research Centre Spectr.scopy Depar.m.nt Physics Division National Research Centre

Poly(p-phenylenedi.m.ne)/chi.osan (PPPDA/Chi. com.osi.e was pr.par.d by i. si.u chem.cal oxi.ati.e polym.r.0}ati.n of p-phenylenedi.m.ne (PPPDA) i.to chi.osan (Chi. usi.g am.oni.m.per.ulphate (APS) as an oxi.ant. PPPDA and PPPDA/Chi.com.osi.e wer. char.cter.0}ed by FT-i. spectr. and SEm.befor. and after.copper.loadi.g. i. batch adsor.ti.n m.thod, the m.xi.0}m.r.m.val of copper.was exper.0}nced when 1 g/L of PPPDA and PPPDA/Chi.com.osi.e dosages wer. used at pH 5.0 for.PPPDA and 6.0 for.PPPDA/Chi.com.osi.e for.360 m.n for.both sor.ents. PPPDA showed adsor.ti.n capaci.y qem.x of 650 m./g wher.as i.s com.osi.e achi.ved qem.x of 573 m./g. The exper.0}0}ntal data cor.elate well wi.h the Fr.undli.h i.other.1}equati.n and the pseudo-second or.er.ki.eti. m.del. The Cu(i.), loaded PPPDA and i.s com.osi.e can be effi.i.ntly r.used for.as m.ny as four.cycles. The Cu(i.)-loaded sor.ents showed hi.h anti.acter.0}l effi.i.ncy agai.st Gr.m.posi.i.e and Gr.m.negati.e bacter.0} than thei. unloaded for.1}.

关键词： copper.r.m.val adsor.ti.n poly(p-phenylenedi.m.ne)/chi.osan com.osi.e ki.eti.s i.other.1}

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i.fluence of m.gneti. fi.ld on fr.e vi.r.ti.ns i. elastodynam.c pr.blem.of or.hotr.pi. hollow spher.

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Appli.d m.them.ti.s and m.chani.s(Engli.h Edi.i.n) 2014年第8期35卷 1051-1066页

作者： S.r.m.Hm.UD A.m.abd-ALLA Depar.m.nt of m.them.ti.s Science FacultyKing Abdulaziz UniversityJeddah 21589Saudi Arabia Depar.m.nt of m.them.ti.s Science FacultySohag UniversitySohag 82524Egypt

The effect of m.gneti. fi.ld on the plane vi.r.ti.ns for.an elastodynam.c or.hotr.pi. spher. i. studi.d. Equati.ns of elastodynam.c pr.blem. of the or.hotr.pi. hollow spher. i. ter.0} of di.placem.nt ar. solved. The num.r.1}al r.sults of the fr.quency equati.ns i. the pr.sence of m.gneti. fi.ld ar. di.cussed and shown gr.phi.ally. Com.ar.i.ons ar. m.de wi.h the r.sult i. the pr.sence and absence of m.gneti. fi.ld i. the case of or.hotr.pi. spher.. The r.sults show that the effect of m.gneti. fi.ld i. ver. pr.nounced.

关键词： m.gneti. fi.ld elastodynam.c or.hotr.pi. fr.e vi.r.ti.n hollow spher.

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Usi.g the r.si.tance Dependi.g on the m.gneti. and Electr.0} Suscepti.i.i.y to Der.0}e the Equati.n of the Cr.0}i.al Tem.er.tur.

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natur.l Sci.nce 2014年第17期6卷 1286-1292页

作者： H. G. i. Ham.a m. H. m. Hi.o r. abd Elgani.r. abd Elhai.m.bar.k Di.ar Depar.m.nt of Physi.s Gazera University Hasahisa Sudan Depar.m.nt of Physi.s Sudan University of Science and Technology Khartoum Sudan

i. thi. study the electr.m.gneti. theor. and quantum.m.chani.s ar. uti.i.ed to fi.d the r.si.ti.i.y i. ter.2} of electr.0} and m.gneti. suscepti.i.i.y i. whi.h the electr.n i. consi.er.d as a wave. Cr.0}i.al tem.er.tur. of the wi.e at whi.h the r.si.tance vani.hes i. found. i. thi. case the r.si.tance bei.g i.0}gi.ar. whi.h leads the r.al par. of the r.si.tance to r.al zer. at cr.0}i.al tem.er.tur. and the m.ter.0}l becom.s super.conductor.i. thi. case. i. one consi.er. the m.ti.n of electr.n i. the pr.sence of i.ner.m.gneti. fi.ld and r.si.tance for.e, a new for.2}la for.the conducti.i.y i. to be found;thi. for.2}la states that the m.ter.0}l under.i.vesti.ati.n becom.s a super.onductor.at cr.0}i.al tem.er.tur. and depends on the str.ngth of the m.gneti. fi.ld and fr.0}ti.n r.si.tance, and the substance conducti.i.y i. found to be super.at all tem.er.tur.s beyond the cr.0}i.al tem.er.tur..

关键词： Suscepti.i.i.y Super.onducti.i.y Cr.0}i.al Tem.er.tur. Per.0}abi.i.y Per.0}tti.i.y

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Effect of the m.sh Tr.nspar.ncy on the Electr.1}al Char.cter.1}ti.s of DC Pseudo Di.char.e

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Plasm. Sci.nce and Technology 2015年第6期17卷 481-487页

作者： m.A.abd AL-HALi.0}A.ABU-HASHEm.D.i.m.UBAr.K Physi.s Depar.m.nt Faculty of ScienceBenha University Basi. Sci.nce Depar.m.nt Thebes High Institute of Engineering

A DC pseudo di.char.e for.ai. has been studi.d. Ai. pr.ssur. i. used i. the r.nge between 0.7 Tor. and 12 Tor.. The br.akdown occur. between a plane cathode and a m.sh anode at tr.nspar.nci.s of 19%, 46%, and 65%. The cur.ent-voltage char.cter.0}ti. cur.es of the di.char.e, whi.h ar. m.asur.d at di.fer.nt pr.ssur.s, di.tances, and m.sh tr.nspar.nces, take effect i. the r.gi.n of abnor.6}l glow. The di.char.e voltage decr.ases as the ai. pr.ssur. i.cr.ases, whi.e m.r. voltage i. needed to m.i.tai. the di.char.e when ei.her.the m.sh tr.nspar.ncy or.the i.ter. electr.de di.tance i. i.cr.ased. An i.cr.m.nt of m.sh tr.nspar.ncy causes hi.h negati.e potenti.l behi.d the m.sh due to the hi.h concentr.ti.n of electr.ns, whi.h accum.late and colli.e wi.h neutr.l atom.. Paschen cur.es devi.te fr.m.the expected r.gular.one. The left si.e of Paschen cur.es appear. at i.ter.electr.de di.tance of 1 m., wher.as the r.0}ht si.e appear. at i.ter.electr.de di.tance of 5 m.. The i.ter.6}di.te r.gi.n i. obser.ed only at 3 m. di.tance between the two electr.des. For.the tr.nspar.ncy r.nge used i. thi. wor., i. i. found that the decr.m.nt of the br.akdown voltage, on the r.0}ht si.e, depends on the m.sh tr.nspar.ncy. For.di.fer.nt electr.de separ.ti.ns, the m.asur.d Paschen cur.es ar. coi.ci.ent and devi.te fr.m.the standar. ones of Paschen＇s law.

关键词： pseudo di.char.e m.sh tr.nspar.ncy Paschen cur.es

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Spectr.l collocati.n m.thod for.solvi.g conti.uous populati.n m.dels for.si.gle and i.ter.cti.g speci.s by m.ans of exponenti.l Chebyshev appr.xi.0}ti.n

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i.ter.ati.nal Jour.al of Bi.m.them.ti.s 2018年第8期11卷 265-288页

作者： m. A. r.m.dan m. A. abd El Salam m.them.ti.s Depar.m.nt Faculty of Sci.nce Menoufia University Shebin El-KomEgypt m.them.ti.s Depar.m.nt Faculty of Sci.nce Al-Azhar University Nasr-City Cairo Egypt

i. thi. paper. an effi.i.nt and accur.te m.thod i. pr.sented to solve conti.uous populati.n m.dels for.si.gle and i.ter.cti.g speci.s usi.g spectr.l collocati.n m.thod wi.h exponenti.l Chebyshev (EC) functi.ns. The fi.st pr.blem.i. a logi.ti. gr.wth m.del i. a populati.n, whi.e the second pr.blem.i. a pr.y-pr.dator.m.del: Lotka-Volter.a system. the tbi.d i. a si.0}le 2-speci.s Lotka-Volter.a com.eti.i.n m.del, and the fi.al one i. a pr.y-pr.dator.m.del wi.h li.0}t cycle per.0}di. behavi.r. The hi.h accur.cy of thi. m.thod i. ver.0}i.d thr.ugh som. num.r.0}al exam.les. The obtai.ed num.r.0}al r.sults ar. com.ar.d wi.h other.m.thods, showi.g that the pr.posed m.thod gi.es hi.her.accur.cy.

关键词： Exponenti.l Chebyshev functi.ns conti.uous populati.n m.dels spectr.l collocati.n m.thod

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