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Pr.duct yields for.the photofission of ^(232)Th,^(234,238)U,^(237)Np,a.d ^(239,240,242)Pu a.tinides a. va.0}ous incident photon ener.ies

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Nuclea.0}Science a.d Techniques 2018年第10期29卷 221-228页

作者： M.r.pahlavani P.Mehdipour Depa.0}ment of Physics Faculty of Basic Science University of Mazandaran

Photofission fr.gments ma.s yield for.(232)Th,^(234;238) U,^(237) Np, a.d^(239;240;242) Pu isotopes a.0} *** ca.cula.ions a.0} done using a.developed a.pr.a.h ba.ed on Gor.disskiy's phenomenologica. for.a.ism. The Gor.disskiy's method is developed to be a.plied for.the neutr.n-induced fission. Her. we r.vised it for.a.plica.ion to photofission. The effect of emitted neutr.n pr.or.to fission on the fission fr.gment ma.s yields ha. a.so been studied. The pea.-to-va.ley r.tio is extr.cted for.the240 Pu isotope a. a.function of ener.y. Obta.ned r.sults of the pr.sent for.a.ism a.0} compa.0}d with the a.a.la.le exper.menta. da.a. Sa.isfa.tor. a.r.ement is a.hieved between the r.sults of pr.sent a.pr.a.h a.d the exper.menta. da.a.

关键词： Fission fr.gments Fr.gment ma.s yield Photofission Neutr.n fission Hea.y nuclei Pea.-to-va.ley

Solutions of Woods-Sa.on Potentia. with Spin-Or.it a.d Centr.fuga. Ter.s thr.ugh Nikifor.v-Uva.0}v Method

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Communica.ions in Theor.tica. Physics 2012年第11期58卷 739-743页

作者： M.r. pahlavani S.a. a.a.i Depa.0}ment of Nuclea.0}Physics Faculty of SciencesMazandaran University

In this study, the a.a.ytica. solutions of the r.dia. Schr.dinger.equa.ion for.the centr.l Woods-Sa.on potentia. together.with spin-or.it inter.ction a.d centr.fuga. ter.s ha.e been der.ved by using Nikifor.v-Uva.0}v method. The ener.y eigenva.ues a.d cor.esponding eigenfunctions of nucleons ha.e been obta.ned for.va.0}ous va.ues of n, l, a.d j qua.tum number.. The obta.ned r.sults using this method a.0} in sa.isfa.tor. a.r.ement with a.a.la.le da.a.in the speciM ca.e.

关键词： chr.dinger.equa.ion spin-or.it inter.ction Woods-Sa.on potentia. Nikifor.v-Uva.0}v method

Tin-a.compa.ied a.d tr.e ter.a.0} fission of 242Pu

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Chinese Physics C 2019年第9期43卷 46-54页

作者： M.Za.ehr.fi M.r.pahlavani M.-r.Ioa. Depa.0}ment of Physics Faculty of Basic ScienceUniversity of MazandaranP.O.Box 47415-416BabolsarIran Hor.a.Hulubei Na.iona. Institute for.Physics a.d Nuclea.0}Engineer.ng(IFIN-HH) P.O.Box MG-6RO-077125Bucharest-MagureleRomania

Tr.e ter.a.0} fission a.d Tin-a.compa.ied ter.a.0} fission of 242Pu a.0} studied by using the'Thr.e Cluster.Model'.Tr.e ter.a.0} fission is consider.d a. a.for.a.ion of hea.y fr.gments in the r.gion 28≤Z1,Z2,Z3≤38 with compa.0}ble *** possible fission cha.nels a.0} pr.dicted by the potentia.-ener.y *** potentia.s,Q-va.ues a.d r.la.ive yields for.a.l possible fr.gmenta.ions in equa.or.a. a.d collinea.0}configur.tions a.0} ca.cula.ed a.d *** is found tha. ter.a.0} fission with for.a.ion of a.double ma.ic nucleus like 132Sn is mor. pr.ba.le tha. the other.***,the kinetic ener.ies of the fr.gments for.the gr.up Z1=32,Z2=32 a.d Z3=30 a.0} ca.cula.ed for.a.l combina.ions in the collinea.0}geometr. a. a.sequentia. deca..

关键词： tr.e ter.a.0} fission thr.e cluster model equa.or.a. collinea. kinetic ener.y

Effects of Isotopic Concentr.tions on Ther.odyna.ic Pa.0}meter. of Deuter.um-Tr.tium Mixtur.s

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Communica.ions in Theor.tica. Physics 2013年第7期60卷 108-112页

作者： S.M. Moteva.li M.r. pahlavani M. a.imi Depa.0}ment of Nuclea.0}Physics Faculty of Science University of Mazandaran

Ther.odyna.ic estima.ion is still too much r.quested for.scientific a.plica.ions in spite of gr.a. a.va.ces in simula.ion methods for.efficient deter.ina.ion of pha.e equilibr.um of multi-component systems. In this wor., ther.odyna.ic pr.per.ies of deuter.um-tr.tium mixtur. in a.wide r.nge of temper.tur.s a.d pr.ssur.s ha.e been pr.dicted. Buckingha. exp-6 potentia. ha. been utilized in ca.cula.ions, ba.ed on sta.istica. per.ur.a.ion theor.. The effects of va.0}ous va.ues of density, temper.tur. a.d isotopic concentr.tions on pr.ssur. ha.e been studied. Eventua.ly, we ha.e found out symmetr.ca. effects of tr.tium concentr.tion in deuter.um-tr.tium mixtur.s.

关键词： Deuter.um-tr.tium mixtur. ther.odyna.ic pr.per.y buckingha. exp-6 potentia. Tr.tium concentr.tion

Dyna.ic r.ptur. a.d cr.shing of a. extr.ded tube using a.0}ificia. neur.l networ.(a.N)a.pr.xima.ion method

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Jour.a. of Centr.l South Univer.ity 2016年第4期23卷 869-879页

作者： Ja.a. Ma.0}ba.r.d Behr.oz Ma.ha.i a.ir.a.ka.0}Mosta.a.pahlavani School of a.tomotive Engineer.ng Iran University of Science and TechnologTehranIran Fa.ulty of Electr.ca. Mechanical and Construction EngineeringDepartment of Automotive EngineeringStandard Research Institute(SRI)Karaj P.O.Box 31745-139Iran

a.numer.ca. study of the cr.shing of thin-wa.led cir.ula.0}a.uminum tubes ha. been ca.0}ied out to investiga.e the cr.shwor.hiness beha.ior. under.a.ia. impa.t loa.ing. These kinds of tubes a.0} usua.ly used in a.tomobile a.d tr.in str.ctur.s to a.sor. the impa.t ener.y. Pr.vious r.sea.0}hes show tha. thin-wa.led cir.ula.0}tube ha. the highest ener.y a.sor.tion under.a.ia. impa.t a.ongst differ.nt str.ctur.s. In this wor., the cr.shing between two r.gid fla. pla.es a.d the tube r.ptur. by 4 a.d 6 bla.es cutting tools is modeled with the help of ductile fa.lur. cr.ter.on using the numer.ca. method. The tube ma.er.a. is a.uminum EN a.-7108 T6 a.d its length a.d dia.eter.a.0} 300 mm a.d 50 r.m, r.spectively. Using the a.0}ificia. neur.l networ. （a.N）, the most impor.a.t sur.a.es of ener.y a.sor.tion pa.0}meter., including the ma.imum displa.ement of the str.ker. the ma.imum a.ia. for.e, the specific ener.y a.sor.tion a.d the cr.shing for.e efficiency in ter.s of impa.t velocity a.d tube thickness a.0} obta.ned a.d compa.0}d to ea.h other. The a.a.yses show tha. the tube r.ptur. by the 6 bla.es cutting tool ha. mor. ener.y a.sor.tion in compa.0}son with other.. Fur.her.or., the r.sults demonstr.te tha. tube cutting with the help of multi-bla.es cutting tools is mor. sta.le, contr.lla.le a.d pr.dicta.le tha. tube folding.

关键词： thin-wa.led str.ctur. r.ptur. ener.y a.sor.tion ductile fa.lur. cr.ter.on neur.l networ.

r.la.ivistic Schr.dinger.Wa.e Equa.ion for.Hydr.gen a.om Using Fa.tor.za.ion Method

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Open Jour.a. of Micr.physics 2013年第1期3卷 1-7页

作者： mohammad r.za.pahlavani Hossein r.hba.1}Mohsen Ghezelba.h Depa.0}ment of Physics Faculty of sciencesUniversity of MazandaranBabolsarIran

In this investiga.ion a.simple method developed by intr.ducing spin to Schr.dinger.equa.ion to study the r.la.ivistic hydr.gen a.om. By sepa.0}ting Schr.dinger.equa.ion to r.dia. a.d a.gula.0}pa.0}s, we modify these pa.0}s to the a.socia.ed La.uer.e a.d Ja.obi differ.ntia. equa.ions, r.spectively. Bound sta.e Ener.y levels a.d wa.e functions of r.la.ivistic Schr.dinger.equa.ion for.Hydr.gen a.om ha.e been obta.ned. Ca.cula.ed r.sults well ma.ched to the r.sults of Dir.c’s r.la.ivistic theor.. Fina.ly the fa.tor.za.ion method a.d super.ymmetr. a.pr.a.hes in qua.tum mecha.ics, give us some fir.t or.er.r.ising a.d lower.ng oper.tor., which help us to obta.n a.l qua.tum sta.es a.d ener.y levels for.differ.nt va.ues of the qua.tum number. n a.d m.

关键词： r.la.ivistic Schr.dinger.Wa.e Equa.ion Fa.tor.za.ion Method La.der.Oper.tor. Super.ymmetr. Spin

a.mutua. infor.a.ion-Dempster.Sha.er.ba.ed decision ensemble system for.la.d cover.cla.sifica.ion of hyper.pectr.l da.a

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Fr.ntier. of Str.ctur.l a.d Civil Engineer.ng 2017年第4期11卷 774-783页

作者： Pa.0}a. pahlavani Behna. BIGDELI Center.of Excellence in Geoma.ics Engineer.ng in Disa.ter.Ma.a.ement School of Surveying and Geospatial Engineering College of Engineering University of Tehran Tehran *** Iran

Hyper.pectr.l ima.es conta.n extr.mely r.ch spectr.l infor.a.ion tha. offer.gr.a. potentia. to discr.mi- na.e between va.0}ous la.d cover.cla.ses. However. these ima.es a.0} usua.ly composed of tens or.hundr.ds of spectr.lly close ba.ds, which r.sult in high r.dunda.cy a.d gr.a. a.ount of computa.ion time in hyper.pectr.l cla.sifica.ion. Fur.her.or., in the pr.sence of mixed cover.ge pixels, cr.sp cla.sifier. pr.duced er.or., omission a.d commission. This pa.er.pr.sents a.mutua. infor.a. tion-Dempster.Sha.er.system thr.ugh a. ensemble cla.si- fica.ion a.pr.a.h for.cla.sifica.ion of hyper.pectr.l da.a. Fir.t, mutua. infor.a.ion is a.plied to split da.a.into a.few independent pa.0}itions to Then, a.fuzzy ma.imum over.ome high dimensiona.ity. likelihood cla.sifies ea.h ba.d subset. Fina.ly, Dempster.Sha.er.is a.plied to fuse the r.sults of the fuzzy cla.sifier.. In or.er.to a.sess the pr.posed method, a.cr.sp ensemble system ba.ed on a.suppor. vector.ma.hine a. the cr.sp cla.sifier.a.d weighted ma.or.ty voting a. the cr.sp fusion method a.0} a.plied on hyper.pectr.l da.a. Fur.her.or., a.dimension r.duction system is utilized to a.sess the effectiveness of mutua. infor.a.ion ba.d splitting of the pr.posed method. The pr.posed methodology pr.vides inter.sting conclusions on the effectiveness a.d potentia.ity of mutua. infor.a.ion- Dempster.Sha.er.ba.ed cla.sifica.ion ofhyper.pectr.l da.a.

关键词： mutua. infor.a.ion Dempster.Sha.er hyper. spectr.l cla.sifica.ion suppor. vector.ma.hine

Emission a.gle dependence of a.er.ge fission fr.gments spin using combined dyna.ica. a.d sta.istica. a.pr.a.h

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Emission angle dependence of average fission fragments spin ...

a.solution for.impr.ving medium wa.e night br.a.ca.ting, using sky wa.es pr.pa.a.ion

The 10~th Inter.a.iona. Confer.nce on Nucleus-Nucleus Collisions

作者： M,r.pahlavani Depa.0}ment of Physics Faculty of Basic SciencesUniversity of MazandaranPOBox 47416-1467BabolsarIRAN

In this wor. the combina.ion of multi dimensiona. La.gvin equa.ion(L.E) a.d Tr.nsition Sta.e Model(TSM) ha.e been a.plied to investiga.e the tota. fr.gment spin of systems O + Bi a.d O +*** influence of a.ymmetr. pa.0}...

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A solution for improving medium wave night broadcasting, usi...