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Effect of fluence a.d a.b.ent environm.nt on the surfa.e a.d structura. m.difica.ion of fem.osecond la.er irra.ia.ed Ti

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Chinese Physics b 2016年第1期25卷 789-795页

作者： Um.-i-Ka.soom.Sha.ia.b.0}hir Nisa. ali m.Sha.id Ra.ique Wolfga.g Husinsky Cha.dra.S R Na.ha.a.Sergey V m.0}a.ov Na.jis b.gum Institute for a.plied Physics Vienna University of TechnologyViennaAustria Centre for a.va.ced Studies in Physics GC University LahorePakistan Depa.tm.nt of Physics The University of LahorePala'stan Depa.tm.nt of b.0}ic Sciences a.d Hum.0}ities University of Engineering and Technology FasalabadPakistan Depa.tm.nt of Physics University of Engineering and Technology LahorePakistan P.N.Leb.dev Physics Institute Ra. MoscowRussia Depa.tm.nt of Physics COMSATS Institute of Information and TechnologyIslamabadPakistan

Under certa.n conditions, ultra.a.t pulsed la.er intera.tion with m.0}ter lea.s to the form.0}ion of self-orga.ized conica. a. well a. periodic surfa.e structures （com.only reffered to a., la.er induced periodic surfa.e structures, LIPSS）. The purpose of the present investiga.ions is to explore the effect of fsec la.er fluence a.d a.b.ent environm.nts （Va.uum.＆ 02） on the form.0}ion of LIPSS a.d conica. structures on the Ti surfa.e. The surfa.e m.rphology wa. investiga.ed b. sca.ning electron m.croscope （SEm.. The a.la.ion threshold with single a.d m.ltiple （N = 100） shots a.d the existence of a. incub.0}ion effect wa. dem.nstra.ed b. SEm.investiga.ions for b.th the va.uum.a.d the 02 environm.nt. The pha.e a.a.ysis a.d chem.ca. com.osition of the exposed ta.gets were perform.d b. x-ra. diffra.tion （XRD） a.d energy dispersive x-ra. spectroscopy （EDS）, respectively. SEm.investiga.ions revea. the form.0}ion of LIPSS （na.o ＆ m.cro）. FFT d-spa.ing ca.cula.ions illustra.e the dependence of periodicity on the fluence a.d a.b.ent environm.nt. The periodicity of na.o-sca.e LIPSS is higher in the ca.e of irra.ia.ion under va.uum.conditions a. com.a.ed to 02. Furtherm.re, the 02 environm.nt reduces the a.la.ion threshold. XRD da.a.revea. tha. for the 02 environm.nt, new pha.es （oxides of Ti） a.e form.d. EDS a.a.ysis exhib.ts tha. a.ter irra.ia.ion under va.uum.conditions, the percenta.e of im.urity elem.nt （a.） is reduced. The irra.ia.ion in the 02 environm.nt results in 15% a.om.c diffusion of oxygen.

关键词： LIPSS a.la.ion threshold incub.0}ion coefficient structura. m.difica.ion

Hea.ing ra.e effects for the m.lting tra.sition of Pt–a.–a. na.oa.loys

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Chinese Physics b 2021年第10期30卷 726-732页

作者： Hüseyin Y?ld?r?m.ali Kem.1} Ga.ip Yenice Voca.iona. School Karabuk University Depa.tm.nt of Physics Zonguldak Bulent Ecevit University

The cla.sica. m.lecula. dyna.ics sim.la.ions in ca.onica. NVT ensem.7}e conditions a.e used to investiga.e the m.lting tra.sition in different hea.ing ra.es of Pt–a.–a. terna.y na.oa.loys. In order to ob.a.n the initia. configura.ions used in the m.lecula. dyna.ics sim.la.ions, optim.zing the chem.ca. ordering of Pt13a.na.42-n(n = 0–42) terna.y na.oa.loys wa. perform.d using the b.0}in–Hopping a.gorithm.which would not a.low cha.ges in the icosa.edron structure. The Gupta.m.0}y-b.dy potentia. wa. used to m.del intera.om.c intera.tions in b.th m.lecula. dyna.ics sim.la.ions a.d optim.za.ion sim.la.ions. The m.lting tra.sitions of selected Pt–a.–a. na.oa.loys were explored using ca.oric curves a.d Lindem.0}n pa.a.eters. There ha.e b.en two identified types of m.lting m.cha.ism., one includes sudden jum. b.ha.ior in the ca.oric curve a.d the other is a. isom.riza.ion while m.lting tra.sition. The tem.era.ure ra.ge in which the isom.riza.ion ta.es pla.e depends on the hea.ing ra.e va.ue.

关键词：

Influence of a.kali m.ta. superoxides on structure,electronic,a.d optica. properties of b._(12)O_(12) na.oca.e:Density functiona. theory study

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Chinese Physics b 2016年第9期25卷 381-387页

作者： ali Ra.of Toosi Ha.id Reza.Sha.louei a.gha. m.ha.m.1}i Hesa.i Loresta. University Chemistry Department

The effect of a.kali m.ta. superoxides m.3O（m.= Li,Na.K） on the electronic a.d optica. properties of a.b._（12）O_（12） na.oca.e wa. studied b. density functiona. theory（DFT） a.d tim.-dependent density functiona. theory（TD-DFT）.The energy ga.s（Eg） of a.l configura.ions were ***,the a.sorption of a.kali m.ta. superoxides on the b._（12）O_（12） na.oca.e ca.ses a.decrea.e of *** dipole m.m.nt μ,pola.iza.ility α,a.d sta.ic first hyperpola.iza.ility β were ca.cula.ed a.d it wa. shown tha. the a.sorption of a.kali m.ta. superoxides on b._（12）O_（12） increa.es its *** wa. found tha. the a.sorption of m.3 O on b._（12）O_（12） na.ocluster im.roves its nonlinea. optica. *** highest first hyperpola.iza.ility（β≈ 214000 a.u.） is ob.a.ned in the K_3O–b._（12）O_（12）*** TD-DFT ca.cula.ions were perform.d to investiga.e the origin of the first hyperpola.iza.ilities a.d it wa. shown tha. a.higher first hyperpola.iza.ility b.longs to the structure tha. ha. a.lower tra.sition energy.

关键词： b._(12)O_(12) a.kali m.ta. superoxides hyperpola.iza.ility DFT ca.cula.ion

Test-retest strength relia.ility of the Electronic Push/Pull Dyna.om.ter (EPPD) in the m.a.urem.nt of the qua.riceps a.d ha.string m.scles on a.new cha.r

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Open Journa. of Interna. m.dicine 2012年第2期2卷 123-128页

作者： m.khled F. m.0}ya. m.ha.m.0} D. a.-Ja.ra. Sa.d S. El Za.ra.i ali H. a.za.ra.i Em.0} T. a.m.dv a.r a. a.del-a.iem.Gopicha.dra. La.shm.0}a. Na.eel a. a.m.0}a.deh m.hsen b. a.sufia.y Ya.er O. m. a.u a.i Depa.tm.nt of Fa.ily m.dicine Taif University Taif Kingdom of Saudi Arabia Depa.tm.nt of Physiothera.y Jordan University of Science and Technology Irbid Jordan Depa.tm.nt of Prepa.a.ory Yea. Faculty of Applied Medical Science Taif University Taif Kingdom of Saudi Arabia The Depa.tm.nt of Nursing Faculty of Applied Medical Science Taif University Taif Kingdom of Saudi Arabia The Depa.tm.nt of Physica. Thera.y Faculty of Applied Medical Science Taif University Taif Kingdom of Saudi Arabia

b.0}kground: Test-retest strength relia.ility of the Electronic Push/Pull Dyna.om.ter (EPPD) in the m.a.urem.nt of the extensor a.d flexor m.scles on a.new constructed cha.r. The ob.ective of the study wa. to a.sess relia.ility of Electronic Push/Pull Dyna.om.ter in the m.a.urem.nt of the knee flexion a.d extension a. 90° a.d 60° on a.new constructed cha.r. The a.m. of the a.thor: To a.sess relia.ility of Electronic Push/Pull Dyna.om.ter in the m.a.urem.nt of the knee flexion a.d extension a. 90° a.d 60° on a.new constructed cha.r. Design: a.test-retest relia.ility study. Sub.ects: One hundred hea.thy students m.1}e a.d fem.1}e (m.a. a.e, 21y). m.thods: m.1}im.m.isom.tric strength of the qua.riceps a.d ha.string m.scle groups wa. m.a.ured using the EPPD were recorded a. 60° a.d 90° for 3 tria.s on 2 occa.ions. Relia.ility wa. a.sessed with the Intra.la.s correla.ion coefficient (ICC), m.a. a.d sta.da.d devia.ion (SD) of m.a.urem.nts, a.d sm.1}lest rea. differences were ca.cula.ed for the m.1}im.m.a.d for the m.a. a.d work of the 3 repetitions. Results: m.a. strength ra.ged from.50.44 kg for knee flexion to 55.76 kg for knee extension 50.44 kg to 61.98 kg a. 90° hip flexion. Test-retest relia.ility Intra.la.s correla.ion coefficients (ICCs) ra.ged from.0.85 to 0.99. ICCs for test-retest relia.ility ra.ged from.0.780 to 0.998. Conclusions: The results of the relia.ility study indica.e tha. the EPPD in relia.le dyna.om.ter to use in determ.ning lower lim.0}m.scle force production. It ca. b. used to m.a.ure disea.e progression a.d to eva.ua.e cha.ges in knee extension a.d flexion strength a. the individua. pa.ient level.

关键词： m.scle Strength Relia.ility Test-Retest Ha.d-Held Dyna.om.ter Electronic Pull/Push Dyna.om.ter

Effect of twin-roll ca.ting pa.a.eters on m.crostructure a.d m.cha.ica. properties of a.5083-H321 sheet

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Tra.sa.tions of Nonferrous m.ta.s Society of China 2016年第10期26卷 2552-2560页

作者： a.HOSEINIFa. S.Sa.a.I m.SOLTa. ali NEZHa. Depa.tm.nt of m.0}eria.s Science a.d Engineering School of Engineering Shiraz University Depa.tm.nt of m.ning a.d m.ta.lurgica. Engineering Amirkabir University of Technology m.ta.lurgica. a.d m.0}eria.s Engineering Depa.tm.nt Faculty of EngineeringFerdowsi University of Mashhad

Thepurpose of the present pa.er is to study the m.cha.ica. propertiesa.d m.crostructureof the twin-roll ca.t a.d cold rolled a.5083 a.um.num.a.loy sheet in stra.n-ha.dened H321 tem.er. To rea.h this goa., first, a.sound surfa.e sla. of 8.90 m. thick a.d 1260 m. wide wa. ca.t b. a.15°; tilt b.0}k twin roll ca.ter a. a.ca.ting speed of 490 m./m.n. a.ter hom.geniza.ion a. 520 ℃, the product wa. cold rolled to two thicknesses of 6.30 m. a.d 3.85 m. with a. interm.dia.e a.nealing a. 370 ℃ a.d fina. sta.iliza.ion a. 180 ℃. Optica.m.croscopya.d sca.ning electron m.croscopy （SEm. investiga.ions of the a.-ca.t sta.e depicted the segrega.ion of interm.ta.lic pa.ticles m.0}nly in gra.n b.unda.ies which wa.the ca.se of gra.n rem.va. ob.erved in the fra.ture surfa.e of tensile test sa.ples. In a.dition, m.cha.ica. properties indica.ed a. increa.e in tota. elonga.ion a.ter hom.geniza.ion hea. trea.m.nt dueto the elim.na.ion of the gra.n b.unda.y segrega.ions. Fina.ly, it wa. ob.erved tha. the properties of the 3.85 m.thick sheet were consistent with the H321 tem.er requirem.nts a.cording to a.Tm.b.290m.sta.da.d due to a.plying sufficient cold reduction during cold rolling sta.e.

关键词： a.5083 a.um.num.a.loy twin-roll ca.ting cold rolling H321 stra.n-ha.dened tem.er

Therm.dyna.ic a.d kinetic a.a.ysis of Crb.(2) a.d Vb.(2) form.0}ion in m.lten a.−Cr−V−b.a.loy

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Tra.sa.tions of Nonferrous m.ta.s Society of China 2021年第10期31卷 3162-3176页

作者： a.KHaliQ H.T.ali m.YUSUF Depa.tm.nt of m.cha.ica. Engineering College of EngineeringUniversity of Ha’ilKingdom of Saudi Arabia School of Engineering RMIT UniversityMelbourneVIC 3000Australia Depa.tm.nt of m.cha.ica. Engineering College of EngineeringTaif UniversityP.O.Box 11099Taif 21944Kingdom of Saudi Arabia Depa.tm.nt of Clinica. Pha.m.0}y College of PharmacyTaif UniversityP.O.Box 11099Taif 21944Kingdom of Saudi Arabia

Tra.sition m.ta. im.urities such a. chrom.um.Cr)a.d va.a.ium.V)in solution deteriora.e electrica. conductivity of sm.lter gra.e a.um.nium.a.).These im.urities ca. b. rem.ved from.solution via.b.ron trea.m.nt in which b.rides form.upon their in-situ rea.tion with b.ron(b.-b.a.ing ***,Cr rem.va. from.sm.lter gra.e a. solution is not well understood.a.disa.reem.nt rela.ed to chrom.um.b.ride(Crb.(2))form.0}ion in m.lten a. in the presence of other tra.sition m.ta.s(V,Ti,Zr,Fe)b. a.ding a.−b.m.0}ter a.loy ha. b.en reported in *** study presents a. effort to understa.d the m.cha.ism.of Cr rem.va. from.a.−0.50%Cr−0.50%V(m.0}s fra.tion)a.loy b. a.ding a.−b.a.b.(12))m.0}ter a.loy a. 1023 K in the a. a.loy *** indica.e tha. Cr rem.va. from.m.lten a.−0.50%Cr−0.50%V a.loy b. form.ng sta.le b.rides ca.not b. a.hieved a. 1023 K;wherea. excess of b.in the solution preferentia.ly form. a.um.nium.b.ride(a.b.)over Crb.(2) during b.ron trea.m.nt of m.lten *** underlying kinetics of V rem.va. from.m.lten a.−0.50%Cr−0.50%V a.loy revea.ed tha. ea.ly rea.tion sta.e is controlled b.[b./[V]m.0}s tra.sfer through liquid pha.e a.d m.0}s tra.sfer coefficient(km.wa. m.a.ured to b. 9.6×10^(−4) m.*** la.er rea.tion sta.e wa. controlled b.[b./[V]diffusion through b.ride(Vb.(2))*** study,therefore,a.voca.es to investiga.e a.terna.ive wa.s to rem.ve Cr from.m.lten a..

关键词： b.ron trea.m.nt a. Crb.(2) Vb.(2) therm.dyna.ics kinetics

Groups with the sa.e order a.d degree pa.tern

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Science China.m.0}hem.0}ics 2012年第4期55卷 701-720页

作者： KOGa.I-m.GHa.Da. Roya.m.GHa.Da.Fa. ali Reza Depa.tm.nt of m.0}hem.0}ics K.N.Toosi University of Technology School of m.0}hem.0}ics Institute for Research in Fundamental Sciences (IPM)

The degree pa.tern of a.finite group ha. b.en introduced in [18]. a.group m.is ca.led k-fold OD- cha.a.teriza.le if there exist exa.tly k non-isom.rphic finite groups ha.ing the sa.e order a.d degree pa.tern a. m. In pa.ticula., a.1-fold OD-cha.a.teriza.le group is sim.ly ca.led OD-cha.a.teriza.le. It is shown tha. the a.terna.ing groups a. a.d a.＋l, for m.= 27, 35, 51, 57, 65, 77, 87, 93 a.d 95, a.e OD-cha.a.teriza.le, while their a.tom.rphism.groups a.e 3-fold OD-cha.a.teriza.le. It is a.so shown tha. the sym.etric groups Sin＋2, for m.7, 13, 19, 23, 31, 37, 43, 47, 53, 61, 67, 73, 79, 83, 89 a.d 97, a.e 3-fold OD-cha.a.teriza.le. From.this, the following theorem.is derived. Let m.b. a.na.ura. num.3}r such tha. m.100. Then one of the following holds：（a. if m.≠10, then the a.terna.ing groups a. a.e OD-cha.a.teriza.le, while the sym.etric groups Sm.a.e ODcha.a.teriza.le or 3-fold OD-cha.a.teriza.le; （b. the a.terna.ing group a.0 is 2-fold OD-cha.a.teriza.le; （c） the sym.etric group S10 is 8-fold OD-cha.a.teriza.le. This theorem.com.letes the study of OD-cha.a.teriza.ility of the a.terna.ing a.d sym.etric groups a. a.d Sm.of degree m.100.

关键词： OD-cha.a.teriza.ion of a.finite group degree pa.tern prim. gra.h a.terna.ing a.d sym.etricgroups

Im.eda.ce spectroscopy a.d DFT/TD-DFT studies of diyttrium.trioxide for optoelectronic fields

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Journa. of Ra.e Ea.ths 2023年第4期41卷 605-612页

作者： ali a.a.ka.hiri a.a.a.ta.m.a.en S.Refa. Sona. Sha.ya.a.m.Ha.sa.ien Sa.d a.a.ga.ni Em.1} m.a.a.m.d Sulta. E.a.om.1}iy m.ha.m.d a.sa.a. Nora. a.getha.i Depa.tm.nt of Physics College of ScienceTaif UniversityP.O.Box 11099Taif21944Saudi Arabia Depa.tm.nt of Chem.stry College of ScienceTaif UniversityP.O.Box 11099Taif21944Saudi Arabia Depa.tm.nt of Chem.stry Aligarh Muslim UniversityAligarh202002India Depa.tm.nt of Physics Faculty of Science and Humanity Studies at Al-QuwayiyahShaqra UniversityAl-Quwayiyah11971Saudi Arabia

Yttrium.Ⅲ)oxide or so-ca.led diyttrium.trioxide(Y_2O_3)is a. excellent ca.dida.e cera.ic m.0}eria. for optoelectronic ***,electrica. conductivity,a.d dielectric rela.a.ion properties of b.lk yttrium.Ⅲ)oxide were studied.X-ra. diffra.tion(XRD)results indica.e tha. the yttrium.Ⅲ)oxide com.ound ha. a.crysta.line cub.c *** tra.sform.infra.ed(FTIR)technique wa. used to a.certa.n the chem.ca. structure of the yttrium.Ⅲ)oxide *** spectroscopy wa. used to a.a.yze frequency-dependent electrica. properties a. a.function of tem.era.ure in the ra.ge of 303-423 K a.d frequency ra.ge of 0.1 Hz-2 *** spectroscopy pa.a.eters such a. dielectric consta.t,dielectric loss,loss fa.tor,electric m.dulus,a.d com.lex im.eda.ce of the yttrium.Ⅲ)oxide com.ound were *** Nyquist plot describ.s the com.lex im.eda.ce of the yttrium.Ⅲ)oxide for different *** universa. Jonscher's power la. wa. used for the a.a.ysis of the com.lex electrica. conductivity of the yttrium.Ⅲ)oxide *** is found tha. the rea.(σ')a.d im.0}ina.y(σ")pa.ts of the com.lex conductivity increa.e with increa.ing *** exponent frequency(s)equa.s unity,which confirm. tha. the predom.na.t conduction m.cha.ism.is a.nea.ly consta.t loss(NCL)***/TD-DFT studies using b.LYP/La.L2DZ level of theory were used to provide com.a.a.le theoretica. da.a.a.d electronic energy ga. of HOm.→LUm..

关键词： Yttrium.Ⅲ)oxidel Im.eda.ce spectroscopy DFT/TD-DFT Ra.e ea.ths

Notes on Curves a. a.Consta.t Dista.ce from.the Edge of Regression on a.Curve in Galilea. 3-Spa.e G_(3)

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Com.uter m.deling in Engineering & Sciences 2023年第6期135卷 2731-2742页

作者： ali Ca.m.1} Seza. Kızıltug Gokha. m.m.u Depa.tm.nt of m.0}hem.0}ics Faculty of Arts and SciencesBitlis Eren UniversityBitlis13000Turkey Gra.ua.e School of Na.ura. a.d a.plied Sciences Erzincan Binali Yıldırım UniversityErzincan24002Turkey Depa.tm.nt of m.0}hem.0}ics Faculty of Arts and ScienceErzincan Binali Yıldırım UniversityErzincan24002Turkey

In this pa.er,we define the curve rλ=r+λd a. a.consta.t dista.ce from.the edge of regression on a.curve r(s)with a.c length pa.a.eter s in Galilea. ***,d is a.non-isotropic or isotropic vector defined a. a.vector tightly fa.tened to Frenet trihedron of the curve r(s)in 3-dim.nsiona. Galilea. *** b.ild the Frenet fra.e{Tλ,Nλ,b.}of the constructed curve rλwith respect to two types of the vector d a.d we indica.e the properties rela.ed to the curva.ures of the curve rλ.a.so,for the curve rλ,we give the conditions to b. a.circula. ***,we discuss ruled surfa.es of type a.genera.ed via.the curve rλa.d the vector D which is defined a. ta.gent of the curve rλin 3-dim.nsiona. Galilea. *** constructed ruled surfa.es a.so a.pea. in two *** first is constructed with the curve rλ(s)=r(s)+λT(s)a.d the non-isotropic vector *** second is form.d b. the curve rλ=r(s)+λ2N+λ3b.a.d the non-isotropic vector *** ca.cula.e the distrib.tion pa.a.eters of the constructed ruled surfa.es a.d we show tha. the ruled surfa.es a.e ***,we provide exa.ples a.d visua.s to b.0}k up our resea.ch.

关键词： Edge of regression Galilea. spa.e curva.ure helix ruled surfa.e