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Ba.listic d.sign a.d.testing of a.com.osite a.m.ur reinforced.by CNTs suita.le for a.m.ured.vehicles

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d.fence Tech.ology（防务技术） 2024年第2期32卷 173-195页

作者： Eva.gelos ch.Tsirogia.nis Eva.gelos d.0}ka.a.is m.ha.ed.H.Ha.sa. a.d.0}la.m.Om.0} Pa.lo Ba.tolo EOd. SA Research and Development DepartmentLakkoma Chalkidikis63080Greece Sch.ol of m.ch.nica. Aerospace and Civil EngineeringUniversity of ManchesterManchesterM139PLUK Singa.ore Centre for 3d.Printing School of Mechanical and Aerospace EngineeringNanyang Technological University639798Singapore

This pa.er is investiga.ing the use of com.osite a.m.ur reinforced.by na.om.0}eria.s, for the protection of light a.m.ured.La.) a.d.m.d.um.a.m.ured.m.lita.y vehicles(m.0}), a.d.the intera.tion between the com.osite m.0}eria.s a.d.high-perform.0}ce ba.listic projectiles. Four a.m.ur m.0}eria.s, consisted.of front hybrid.fibre reinforced.polym.r cover la.er, cera.ic strike-fa.e, fibre reinforced.polym.r interm.d.a.e la.er a.d.the m.ta. m.0}rix com.osite reinforced.ba.kpla.e, were m.0}ufa.tured.a.d.a.sem.led.by a.hesive tech.ology. The proposed.la.ina.ed.protection system.is suita.le for a.m.ured.ground.vehicles;however, it could.be used.a. a.m.ur on ground. a.r a.d.na.a. pla.form.. The d.sign of the protection system. includ.ng m.0}eria. selection a.d.thickness, wa. ela.ora.ed.d.pend.ng on the perform.0}ce requirem.nts of Level 4 + STa.a. 4569 m.lita.y sta.d.0}d.projectile 14.5 m. × 114 m. a.I B32) a.d.especia.ly on a.d.sign philosophy which.is a.a.ysed.with the specifica.ions. The ba.kpla.e of this new com.osite is a.hybrid.m.0}eria. of m.ta. m.0}rix Com.osite(m.C) reinforced.with ca.bon na.otubes(CNTs), m.0}ufa.tured.with the use of powd.r m.ta.lurgy tech.ique. The com.osite ba.kpla.e m.0}eria. wa. m.rphologica.ly, m.ch.nica.ly a.d.ch.m.ca.ly a.a.ysed. Results show tha. a.l pla.es a.e presenting high m.ch.nica. properties a.d.ba.listic ch.ra.teristics, com.a.ed.to com.only used.a.m.ur pla.es. Rea. m.lita.y ba.listic tests a.cord.ng to a.P-STa.a. 4569 were ca.ried.out for the tota. com.osite a.m.ur system.. a.ter the ba.listic tests, a.2024-CNT3 showed.the best protection results, com.a.ed.with the other pla.es(a.2024-CNT1 a.d.a.2024-CNT2), with the projectile being una.le to fully penetra.e the com.osite pla.e.

关键词： Pa.sive a.m.ur protection Protective a.m.ur Ba.listic perform.0}ce Hybrid.com.osites Vehicle protection

Boron-conta.ning com.ound. a. la.els,d.ugs,a.d.thera.ostic a.ents for d.a.etes a.d.its com.lica.ions

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World.Journa. of d.a.etes 2024年第6期15卷 1060-1069页

作者： m.0}vin a.Soria.o-Ursúa.R Iva. Cord.va.ch.vez Eunice d.Fa.fa.-Ga.cía.George Ka.a.ka d.pa.tm.nt of Physiology Escuela Superior de MedicinaInstituto Politécnico NacionalCiudad de México 11340Mexico d.pa.tm.nt of Physiology Instituto Politécnico NacionalMexico City 11340Mexico d.pa.tm.nt of Bioch.m.stry Instituto Politécnico NacionalMexico City 11340Mexico d.pa.tm.nt of ch.m.stry The University of TennesseeKnoxvilleTN 37996United States

d.a.etes is a.d.sea.e with a.high globa. *** stra.egies ha.e fa.led.to lim.t the a.va.cem.nt a.d.im.a.t of the *** ea.ly d.a.nosis a.d.trea.m.nt will require the d.velopm.nt of new *** this sense,boronconta.ning com.ound. ha.e been reported.a. a.ents with the a.ility to red.ce glycem.a.a.d.*** ha.e a.so been used.for la.eling a.d.m.a.uring ca.bohyd.a.es a.d.other m.lecules linked.to the initia. sta.es of d.a.etes a.d.its *** a.d.tion,certa.n boron com.ound. bind.to m.lecules rela.ed.to d.a.etes d.velopm.nt a.d.their biologica. a.tivity in the regula.ion of eleva.ed.***,it should.be noted.tha. som. boron com.ound. a.pea. to exert beneficia. effects on d.a.etes com.lica.ions such.a. a.celera.ing wound.hea.ing while a.eliora.ing pa.n in d.a.etic pa.ients.

关键词： Boron Ca.bohyd.a.es m.ta.olism d.a.etes Boronod.pyrrom.thene

Solid.liquid.extra.tion for yttrium.recovery using porous polym.ric resin（Xa.-7） functiona.ized.with d.EHPA

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Journa. of Ra.e Ea.ths 2024年第9期42卷 1764-1773页

作者： P.a.m.0}tínez-m.ntoya.R.G.Sa.ch.z-a.va.a.o d.Y.m.d.na.Vela.quez m.L.Ca.rera.Jota.P.Ga.nica.ch.vez a.d. J.m.ra.es-Ra.irez Higher Sch.ol of ch.m.ca. Engineering a.d.Extra.tive Ind.stries ESIQIEIPNDepartment of Metallurgical Engineering m.tropolita. a.tonom.us University Department of MaterialsBasic Sciences and Engineering Center for Resea.ch.a.d.Tech.ologica. Innova.ion CIITECIPN

The recovery of yttrium.is proposed.by a.plying a.solid.liquid.extra.tion process using d.-2-ethyl hexylphosphoric a.id.d.EHPa. a. extra.ting *** extra.ting a.ents were supported.on a.m.0}ro porous polym.ric resin Xa.-7（solid.pha.e）.Yttrium.ions extra.tion a.d.d.sch.rge tests were perform.d.firstly from.a.synthetic a.ueous solution of 100 m./L Y（liquid.pha.e） a. 25℃ with *** effects of pH of a.ueous solutions bea.ing yttrium.volum. fra.tion of extra.ting a.ents a.d.the solid.liquid.S/L）ra.io on the yttrium.recovery were *** m.st fa.ora.le cond.tions for yttrium.ions extra.tion a.e;20 vol% d.EHPa.functiona.ized.resin,pH=1.5 a.d.a. S/L ra.io of 10 m./m. The d.sch.rge of yttrium.ions wa. d.ne und.r the sa.e cond.tions of extra.tion sta.e,using a.2 m.l/L [H2SO4] a. stripping *** to 80% yttrium.is extra.ted.while 75% yttrium.is recovered.in the striping *** a.l experim.nts,the rea.tion equilibrium.is rea.0}d.a.ter 20 m.n,a.d.the kinetics for the extra.tion sta.e wa. d.term.ned.a. a.second.ord.r ***,experim.nts were ca.ried.out to d.sch.rge the yttrium.oa.ed.resins,a.d.it ha. been d.term.ned.tha. the best pH va.ue to strip the Y ions is *** tests of extra.tion a.d.d.sch.rge for yttrium.ions show tha. the functiona.ized.resin ca. work a. lea.t five cycles without d.crea.ing its ***,the proposed.process wa. tested.in a.rea. solution with Y ions fro m.a.wa.te fluorescent la.m. powd.r lea.0}d.in H2SO4,d.m.nstra.ing the a.ility to effectively recover yttrium.sepa.a.ing it from.va.ious m.ta.s from.the stud.ed.resid.e.

关键词： Fluorescent la.ps recycling Ra.e ea.th solid.liquid.extra.tion Solid.liquid.kinetics extra.tion Xa.-7 resin Yttrium.recovery

Olefin Polym.riza.ion Beha.ior of Tita.ium.IV) Com.lexes with Fluorina.ed.a.d.Non-fluorina.ed.a.ipha.ic Phenoxyim.ne Liga.d.

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ch.nese Journa. of Polym.r Science 2024年第1期42卷 52-62,I0007页

作者： Vla.isla. a.Tuska.v Ka.im.F.m.0}om.d.v Svetla.a.ch.Ga.ieva.d.5}try a.Kurm.0}v Yulia.V.Nelyubina.Evgenii K.Golubev m.0}ia.d.Evseeva.Viktor G.Va.il'ev Ga.ina.G.Nikiforova.m.kha.l I.Buzin Vya.0}sla. S.Bogd.0}ov Boris m.Bulych.v d.pa.tm.nt of ch.m.stry M.V.Lomonosov Moscow State UniversityMoscow 119992Russian Federation a.N.Nesm.ya.ov Institute of Orga.oelem.nt Com.ound. Russian Academy of SciencesMoscow119991Russian Federation Enikolopov Institute of Synthetic Polym.r m.0}eria.s Russian Academy of SciencesMoscow 117393Russian Federation

a.series of Ti(Ⅳ) d.ch.orid. a.d.d.a.koxid. com.plexes with phenoxyim.ne liga.d. conta.ning fluorina.ed.a.d.nonfluorina.ed.a.ipha.ic im.ne fra.m.nts ha.e been *** m.lecula. structures of com.lexes 1 a.d.4 were esta.lished.by single-crysta. X-ra. d.ffra.tion *** com.lexes a.opt a.d.storted.octa.ed.a. coord.na.ion structure a.ound.the tita.ium.a.om.a.d.two oxygen a.om. a.e situa.ed.in tra.s position while two nitrogen a.om. a.d.two outgoing liga.d.(Cl or iPrO) a.e situa.ed.in cis *** of a.tiva.ors(m.a.-12 a.d.com.ina.ions Et_na.Cl_(3-n)+Bu_(2)m.) a.d.outgoing liga.d.Cl or iPrO) na.ure on the ca.a.ytic a.tivity a.d.properties of the resulting polym.rs wa. *** Ti com.lexes,d.spite the na.ure of the outgoing liga.d.(Cl or iPrO) in the presence of a./m. a.tiva.ors,wa. found.to d.spla. a.high ethylene polym.riza.ion a.tivity in the ra.ge 1600-3830 kg_(polym.r)·m.l_(Ti)^(-1)·h^(-1)·a.m.(-1) with a.viscosity a.era.e m.lecula. weight(m.v) va.ue in the ra.ge 1.1×10~6-7.1×10~6 d.0}ton(d.0}.The resulting UHm.PE ca. be processed.by a.solventless m.thod.into high-strength a.d.high-m.d.lus oriented.*** rheologica. ch.ra.teristics of a.polym.r m.lt ha.e been *** a.sence of a.cross-over point d.d.not a.low to com.a.e the va.ues of the m.lecula. weight d.stribution of polym.rs obta.ned.on fluorina.ed.a.d.non-fluorina.ed.pre-ca.a.ysts,however,the estim.0}ion of the enta.glem.nt d.nsity is in good.a.reem.nt with the m.ch.nica. ch.ra.teristics of oriented.film.*** a.tiva.ion with m.thyla.um.xa.e,the a.tivity of the com.plexes d.crea.ed.very significa.tly;however,a.polym.r with a.m.lecula. weight of a.out 12 m.llion d.0}wa. *** the process of ethylene/octene-1 copolym.riza.ion,fluorine-conta.ning preca.a.ysts showed.a.clea. a.va.ta.e over non-fluorina.ed.a.a.ogues both in a.tivity a.d.in com.nom.r content.

关键词： FI ca.a.ysts Tita.ium.IV) (Co)polym.riza.ion a./m. co-ca.a.yst Ultra.high m.lecula. weight polyethylene

Highly d.vergent sym.a.ric linea.es of Leptotila.verrea.xi(a.es:Colum.id.1})suggest a.second.1}y conta.t a.ea.in the Isthm.s of Tehua.tepec,m.xico

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a.ia. Resea.ch 2024年第1期15卷 12-21页

作者： Orla.d. J.Espinosa.ch.vez a.olfo G.Na.a.ro-Sigüenza.Herna.d. Rod.íguez-Correa.Luis a.Sánch.z-González m.seo d. Zoología.a.fonso L.Herrera. Depto.de Biología EvolutivaFacultad de CienciasUniversidad Nacional Autonoma de MexicoApdo.Postal 70-399CP 04510Ciudad de MexicoMexico Posgra.o en Ciencia. Biologica. Unidad de PosgradoEdificio D1◦PisoCircuito de PosgradosCiudad UniversitariaUniversidad Nacional Autonoma de MexicoCoyoacanCP 04510CDMXMexico Escuela.Na.iona. d. Estud.os Superiores Unid.0} m.relia Universidad Nacional Autonoma de Mexico.Antigua Carretera a Patzcuaro No.8701 Col.Ex Hacienda de San Jose de la HuertaC.P.58190MoreliaMichoacanMexico

d.e to a.com.lex geologica. a.d.biotic history,the Isthm.s of Tehua.tepec(IT),ha. been long recognized.a. a.d.iver for the evolutiona.y d.vergence of num.rous lowla.d.a.d.highla.d.*** d.stributed.in the lowla.d. of the a.erica. continent,the White-Tipped.d.ve(Leptotila.verrea.xi)is a.polytypic species with 13 recognized.*** of these ha.e been record.d.in m.xico,a.d.the d.stribution of three a.uts a. the IT,suggesting a.conta.t *** estim.0}e phylogenetic pa.terns,d.vergence tim.s a.d.genetic d.fferentia.ion,we exa.ined.two m. d.a.Nd. a.d.COI)a.d.one n d.a.β-fibint 7)*** a.so used.correla.ive ecologica. nich. m.d.ls(ENm.to a.sess whether ecologica. d.fferences a.ross the IT m.0} ha.e a.ted.a. a.biogeogra.hica. *** estim.0}ed.pa.eod.stributions d.ring the m.d.le Holocene,La.t Gla.ia. m.0}im.m.a.d.La.t Intergla.ia.,to eva.ua.e the influence of clim.0}e ch.nges on the d.stribution a.d.d.m.gra.hic *** results showed.genetica.ly d.stinct linea.es tha. d.verged.a.proxim.0}ely 2.5 m.llion yea.s *** a.d.ecologica. fa.tors m.0} ha.e pla.ed.a.d.a. role in prom.ting d.fferentia.ion,but a.so in the form.0}ion of a.second.0}y conta.t zone in the southern *** ecologica. nich. com.a.isons ind.ca.ed.tha. the ecologica. nich. of sym.a.ric linea.es a. the IT a.e not id.ntica.,suggesting nich.s d.vergence;in a.d.tion,environm.nta. nich. m.d.ls a.ross the region ind.ca.ed.no a.rupt biogeogra.hic ba.riers,but the presence of regions with low *** results suggest tha. genetic d.fferentia.ion origina.ed.by a.vica.ia.t event proba.ly rela.ed.to environm.nta. fa.tors,fa.ored.the evolution of d.fferent ecologica. ***,the a.sence of a.biogeogra.hic ba.rier but the presence of less suita.le a.ea. in the conta.t regions,suggest tha. second.0}y conta.t zones m.0} be a.so m.0}nta.ned.by clim.0}ic fa.tors for the ea.tern group,but a.so by biotic intera.tions for the western group.

关键词： Biogeogra.hica. bound.0}y Hum.d.a.d.d.y forests Isthm.s of Tehua.tepec Phylogeogra.hy Second.0}y conta.t

Further investiga.ion on the fusion of ^(6)Li with ^(209)Bi ta.get a. nea.-ba.rier energies

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ch.nese Physics C 2024年第7期48卷 106-117页

作者：张高龙焦振威张广鑫 m.R.Cortes 胡世鹏钱建强 d.m.ngoni 屈卫卫李聪博郑云张焕乔孙慧斌王楠张春雷 J.J.Va.iente-d.bón d.Testov m.m.0}zocco a.Gozzelino C.Pa.a.ca.d.lo d.Pierroutsa.ou m.La.Com.a.a.a.Goa.d.ff d.Ba.za.co d.R.Na.oli F.Ga.ta.ossa.F.Recch.a.a.Illa.a.S.Ba.es I.Za.on S.a.d.n G.d. a.gelis m.Sicilia.o R.m.nega.zo S.m.Lenzi J.L.Ferreira.J.Ra.gel Serka. a.koyun L.F.Ca.to J.Lubia. Sch.ol of Physics Beihang UniversityBeijing 100191China Sino-French.Institute of Nuclea. Engineering a.d.Tech.ology Sun Yat-Sen UniversityZhuhai 519082China Instituto d. Física Universidade Federal Fluminense24210-340NiteróiRio de JaneiroBrazil Institute for a.va.ced.Stud. in Nuclea. Energy&Sa.ety Shenzhen UniversityShenzhen 518060China Shenzhen Key La.ora.ory of Resea.ch.a.d.m.0}ufa.ture of High Purity Germ.0}ium.m.0}eria.s a.d.Fetectors Shenzhen UniversityShenzhen 518060China INFN Sezione di PadovaPadovaItaly d.pa.tim.nto d. fisica.a.tronom.a.d.ll'Universita.d. pa.ova PadovaItaly Sta.e Key La.ora.ory of Ra.ia.ion m.d.cine a.d.Protection School of Radiation Medicine and ProtectionSoochow UniversitySuzhou 215123China ch.na.Institute of a.om.c Energy Beijing 102413China The Key La.ora.ory of Bea. Tech.ology a.d.m.0}eria. m.d.fica.ion of m.nistry of Ed.ca.ion College of Nuclear Science and TechnologyBeijing Normal UniversityBeijing 100875China INFN Laboratori Nazionali di LegnaroI-35020 LegnaroItaly INFN Sezione di NapoliI-80126 NapoliItaly d.pa.tim.nto d. Fa.m.0}ia Universitàdi Napoli"Federico II"I-80131 NapoliItaly d.pa.tm.nt of Na.ura. a.d.m.0}hem.0}ica. Sciences Faculty of EngineeringTarsus University33480 MersinTurkiye Physics d.vision Argonne National LaboratoryLemont-ILUSA d.pa.ta.ento d. m.0}em.0}tica Física e Computaç˜ao Universidade do Estado do Rio de JaneiroFaculdade de Tecnologia27537-000ResendeRio de JaneiroBrazil d.pa.tm.nt of Physics Sivas Cumhuriyet UniversitySivasTurkey Instituto d. Física Universidade Federal do Rio de JaneiroCP 6852821941-972Rio de JaneiroBrazil

The com.lete a.d.incom.lete fusion cross sections for ^(6)Li+^(209)Bi were m.a.ured.using the in-bea.γ-ra. m.thod.a.ound.the Coulom. *** cross sections of(d.uteron ca.tured.incom.lete fusion(ICF)prod.cts were re-qua.tified.experim.nta.ly for this rea.tion *** results revea. tha. the ICF cross section is equiva.ent to tha. of com.lete fusion(CF)a.ove the Coulom. ba.rier a.d.d.m.na.t nea. or below the Coulom. ba.rier.a.theoretica. ca.cula.ion ba.ed.on the continuum.d.scretized.coupled.ch.nnel(Cd.C)m.thod.wa. perform.d.for the a.orem.ntioned.CF a.d.ICF cross sections;the result is consistent with the *** universa. fusion function(UFF)wa. a.so com.a.ed.with the m.a.ured.CF cross section for d.fferent ba.rier pa.a.eters,d.m.nstra.ing tha. the CF suppression fa.tor is significa.tly influenced.by the ch.ice of potentia.,which.ca. reflect both d.na.ic a.d.sta.ic effects of brea.up on the fusion process.

关键词： cross section incom.lete fusion suppression fa.tor wea.ly bound.nuclei

One-neutron stripping process in the^(209)Bi(^(6)Li,^(5)Li)^(210)Bi*rea.tion rea.tion

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Nuclea. Science a.d.Tech.iques 2024年第6期35卷 120-129页

作者： Ga.-Long Zha.g Zhen-Wei Jia. Gua.g-Xin Zha.g E.N.Ca.d.zo B.Pa.s Shi-Peng Hu Jia.-Qia.g Qia. d.0}iele m.ngoni Wei-Wei Qu Cong-Bo Li Yun Zheng Hua.-Qia. Zha.g Hui-Bin Sun Na. Wa.g ch.n-Lei Zha.g J.J.Va.iente-d.bón d.Testov m.m.0}zocco a.Gozzelino C.Pa.a.ca.d.lo d.Pierroutsa.ou m.La.Com.a.a.a.Goa.d.ff d.Ba.za.co d.R.Na.oli F.Ga.ta.ossa.F.Recch.a.a.Illa.a.S.Ba.es I.Za.on S.a.d.n Gd. a.gelis m.Sicilia.o R.m.nega.zo S.m.Lenzi S.a.koyun L.F.Ca.to J.Lubia. Sch.ol of Physics Beihang UniversityBeijing 100191China Sino-French.Institute of Nuclea. Engineering a.d.Tech.ology Sun Yat-Sen UniversityZhuhai 519082China Instituto d. Física Universidade Federal Fluminense24210-340 NiteróiRio de JaneiroBrazil La.ora.orio Ta.d.0} Comisión Nacional de Energía AtómicaBKNA1650 San MartíınArgentina Institute for a.va.ced.Stud. in Nuclea. Energy a.d.Sa.ety Shenzhen UniversityShenzhen 518060China Shenzhen Key La.ora.ory of Resea.ch.a.d.m.0}ufa.ture of High Purity Germ.0}ium.m.0}eria.s a.d.Fetectors Shenzhen UniversityShenzhen 518060China INFN Sezione di PadovaPaduaItaly d.pa.tim.nto d. fisica.a.tronom.a.d.ll’Universita.d. pa.ova PaduaItaly Sta.e Key La.ora.ory of Ra.ia.ion m.d.cine a.d.Protection School of Radiation Medicine and ProtectionSoochow UniversitySuzhou 215123China ch.na.Institute of a.om.c Energy Beijing 102413China The Key La.ora.ory of Bea. Tech.ology a.d.m.0}eria. m.d.fica.ion of m.nistry of Ed.ca.ion College of Nuclear Science and TechnologyBeijing Normal UniversityBeijing 100875China La.ora.ori Na.iona.i d. Legna.o INFN35020 LegnaroItaly INFN Sezione di Napoli80126 NaplesItaly d.pa.tim.nto d. Fa.m.0}ia Universitàdi Napoli“Federico II”80131 NaplesItaly d.pa.tm.nt of Na.ura. a.d.m.0}hem.0}ica. Sciences Faculty of EngineeringTarsus University33480 MersinTurkey Physics d.vision Argonne National LaboratoryLemontILUSA d.pa.tm.nt of Physics Sivas Cumhuriyet UniversitySivasTurkey Instituto d. Física Universidade Federal do Rio de JaneiroRio de Janeiro CP 6852821941-972Brazil

One-neutron stripping process between^(6)Li a.d.(209)Bi wa. stud.ed.a. 28,30,a.d.34 m.V using the in-bea.γ-ra. spectroscopy ***γ-γcoincid.nt a.a.ysis clea.ly id.ntified.twoγ-ra.s feed.ng the ground.a.d.long-lived.isom.ric sta.es,which.were em.loyed.to d.term.ne the cross *** one-neutron stripping cross sections were sim.la. to the cross sections of com.lete fusion in the^(6)Li+^(209)Bi system.but the one-neutron stripping cross sections d.crea.ed.m.re gra.ua.ly a. the sub-ba.rier region.a.coupled.rea.tion-ch.nnel ca.cula.ion wa. perform.d.to stud. the d.ta.led.rea.tion m.ch.nism.of the one-neutron stripping process in^(6)*** ca.cula.ions ind.ca.ed.tha. the first excited.sta.e of 5 Li is critica. in the a.tua. one-neutron tra.sfer m.ch.nism.a.d.the va.ence proton of 209Bi ca. be excited.to the low-lying excited.sta.e in(^(6)Li,^(5)Li)rea.tion,unlike in the(d.p)rea.tion.

关键词： Tra.sfer rea.tion Wea.ly bound.nuclei Cross section

Ca.bene ch.m.stry for unna.ura. biosynthesis

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Science ch.na.Life Sciences) 2024年第1期67卷 204-207页

作者： Jing Hua.g Ja. d.Kea.ling d.pa.tm.nt of ch.m.ca. a.d.Biom.lecula. Engineering University of CaliforniaBerkeley 94720USA Joint BioEnergy Institute Lawrence Berkeley National LaboratoryEmeryville 94608USA Biologica. System. a.d.Engineering d.vision Lawrence Berkeley National LaboratoryBerkeley 94720USA Novo Nord.sk Found.0}ion Center for Biosusta.na.ility Technical University of DenmarkKongens Lyngby 2800Denmark d.pa.tm.nt of Bioengineering University of CaliforniaBerkeley 94720USA Synthetic Bioch.m.stry Center Institute for Synthetic BiologyShenzhen Institutes for Advanced TechnologiesShenzhen 518055China

Previously,ch.m.sts working in synthesis were jea.ous of biologists since the enzym.s found.in na.ure usua.ly exhibited.grea. ca.a.ytic properties(e.g.,high ca.a.ytic efficiency,excellent selectivity such.a. substra.e selectivity,regioselectivity a.d.stereoselectivity).However,biologica. system. la.k m.1}y counterpa.ts of rea.tions wid.ly used.in ch.m.ca. synthesis.

关键词： synthesis selectivity ca.a.ytic

Prod.ction of the Red.ction Form.la.of Seventh Ord.r Runge-Kutta.m.thod.with Step Size Control of a. Ord.na.y d.fferentia. Equa.ion

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a.plied.m.0}hem.0}ics 2022年第4期13卷 325-337页

作者： Georgios d. Trikka.iotis m.0}ia.ch. Gousid.u-Koutita d.pa.tm.nt of m.0}hem.0}ics Aristotle University of Thessaloniki Thessaloniki Greece

The purpose of the present work is to construct a.nonlinea. equa.ion system.(85 × 53) using Butch.r’s Ta.le a.d.then by solving this system.to find.the va.ues of a.l set pa.a.eters a.d.fina.ly the red.ction form.la.of the Runge-Kutta.(7,9) m.thod.(7th ord.r a.d.9 sta.es) for the solution of a. Ord.na.y d.fferentia. Equa.ion (Od.). Since the system.of high ord.r cond.tions required.to be solved.is too com.lica.ed. we introd.ce a.subsystem.from.the origina. system.where a.l coefficients a.e found.with respect to 9 free pa.a.eters. These free pa.a.eters, a. well a. som. others in a.d.tion, a.e a.justed.in such.a.wa. to furnish m.re efficient R-K m.thod.. We use the m.0}La. softwa.e to solve severa. of the crea.ed.subsystem. for the com.a.ison of our results which.ha.e been solved.a.a.ytica.ly.

关键词： Initia. Va.ue Problem Runge-Kutta.m.thod. Ord.na.y d.fferentia. Equa.ions