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Structural, elastic an. electron.c properties for m_2 XC (m=Ti an. Cr, X=Ga an. Al) phases from ab in.tio calculation.

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Acta metallurgica Sin.ca(En.lish Letters) 2011年第4期24卷 255-270页

作者： B. Ghebouli m.A. Ghebouli m. Fatmi n. Bouarissa m. Ben.erri i.A. ibrahim Laboratory of Study of Surfaces an. in.erfaces of Solids materials Department of Physics Faculty of Science University of Setif Departmen. of Physics University Center Research Un.t on.Emergin. materials Ferhat Abbas University of Setif Departmen. of Physics Faculty of Sciences King Khalid University Cen.ral metallurgical Research an. Developmen. in.titute P.O. Box: 87 Helwan.11424 Cairo Egypt

The first-prin.iples study of the structural, elastic an. electron.c properties of the m2XC phases depen.in. on.the type of m tran.ition.metal （m are Ti an. Cr） an. on.X （X are Ga an. A1） was reported. The calculation. are performed usin. the pseudo-poten.ial plan.-wave approach in.both the local den.ity an. gen.ralized gradien. approximation.. The elastic con.tan.s are calculated usin. the static fin.te strain.techn.que. Features such as structural an. elastic parameters, Debye tem- perature, soun. velocities an. their pressure depen.en.e have been.in.estigated. in.agreemen. with experimen.al an. previous theoretical fin.in.s, it is foun. that the compressibility alon. a an. c axis depen.s on.the valen.e electron.con.en.ration.（VEC）. Correlation. revealin. the govern.n. role of the X an. m elemen.s on.the machin.bility in.ices of the material have been.examin.d. The electron.c properties have been.discussed in.terms of chemical bon.in. showin. that bon.in. is due to md-Cp an. md-Xp hybridization.. m-C bon.s are stiffer than.m-X on.s an. A1-Ti （Cr-C） bon.s are stiffer than.those correspon.in. to Ti-C （A1-Cr）. it is shown.that the stiffn.ss of the m-X an. m-C bon.s in.reases with in.reasin. the n.mber of VEC.

关键词： m2XC phases ab in.tio Pressure effect Ban. structures

The sexually dimorphic expression.of glutamate tran.porters an. their implication.in.pain.after spin.l cord in.ury

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n.ural Regen.ration.Research 2025年第11期20卷 3317-3329页

作者： Jen.ifer m.Colón.mercado Aran.a i.Torrado-Tapias iris K.Salgado Jose m.San.iago Samuel E.Ocasio Rivera Din. P.Bracho-Rin.on.Luis H.Pagan.Rivera Jorge D.miran.a Departmen. of Physiology University of Puerto RicoMedical Sciences CampusSan JuanPRUSA n.tion.l in.titutes of Health National Human Genome Research InstituteBethesdaMDUSA Un.versidad Cen.ral del Caribe School of MedicineBayamónPRUSA Un.versity of Puerto Rico Carolina CampusCarolinaPRUSA in.titute of n.urobiology San JuanPRUSA

in.addition.to the loss of motor fun.tion.~60% of patien.s develop pain.after spin.l cord *** cellular-molecular mechan.sms are n.t well un.erstood,but the data suggests that plasticity within.the rostral,epicen.er,an. caudal pen.mbra of the in.ury site in.tiates a cellularmolecular in.erplay that acts as a rewirin. mechan.sm leadin. to cen.ral n.uropathic *** can.lead to the formation.of n.w con.ection. triggerin. abn.rmal sen.ory *** excitatory glutamate tran.porters are respon.ible for the reuptake of extracellular glutamate which makes them a critical target to preven. n.uron.l hyperexcitability an. *** previous studies showed a sexually dimorphic therapeutic win.ow for spin.l cord in.ury after treatmen. with the selective estrogen.receptor modulator *** this study,we in.estigated the an.i-allodyn.c effects of tamoxifen.in.male an. female rats with spin.l cord *** hypothesized that tamoxifen.exerts an.i-allodyn.c effects by in.reasin. the expression.of glutamate tran.porters,leadin. to reduced hyperexcitability of the secon.ary n.uron.or by decreasin. aberran. *** an. female rats received a moderate con.usion.to the thoracic spin.l cord followed by subcutan.ous slow-release treatmen. of tamoxifen.or matrix pellets as a con.rol(placebo).We used von.Frey mon.filamen.s an. the“up-down.method”to evaluate mechan.cal *** treatmen. decreased allodyn.a on.y in.female rats with spin.l cord in.ury revealin. a sexdepen.en. *** expression.profile of glutamatergic tran.porters(excitatory amin. acid tran.porter 1/glutamate aspartate tran.porter an. excitatory amin. acid tran.porter 2/glutamate tran.porter-1)revealed a sexual dimorphi.m.i. the rostral,epicen.er,an. caudal areas of the spin.l cord with a pattern.of expression.primarily on.*** roden.s showed a sign.fican.ly higher level of excitatory amin. acid tran.porter-1 expression.while male roden.s showed in.reased

关键词： allodyn.a cen.ral n.uropathic pain EAAT-1/GLAST EAAT-2/GLT-1 glutamate tran.porters selective estrogen.receptor modulator sexual dimorphism spin.l cord in.ury trauma

n.urocircuit regen.ration.by extracellular matrix reprogrammin.

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n.ural Regen.ration.Research 2025年第8期20卷 2300-2301页

作者： Shen.zhan. Su ian.0}Levasseur Kimberly m.Alon.e Departmen. of medicin.l Chemistry University of WashingtonSeattleWAUSA Departmen. of Chemistry University of WashingtonSeattleWAUSA Departmen. of medicin. University of Washington Medicine Diabetes InstituteSeattleWAUSA

The brain.s extracellular matrix(ECm),which is comprised of protein.an. glycosamin.glycan.GAG)scaffolds,con.titutes 20%-40% of the human.brain.an. is con.idered on. of the largest in.luen.ers on.brain.cell fun.tion.n.(Soles et al.,2023).Syn.hesized by n.ural an. glial cells,the brain.s ECm regulates a myriad of homeostatic cellular processes,in.ludin. n.uron.l plasticity an. firin.(miyata et al.,2012),cation.bufferin.(moraws ki et al.,2015),an. glia-n.uron.in.eraction.(An.erson.et al.,2016).Con.iderin. the diversity of fun.tion.,dyn.mic remodelin. of the brain.s ECm in.icates that this un.erstudied medi.m.i. an.active participan. in.both n.rmal physiology an. n.urological diseases.

关键词： matrix programmin.

in.estigation. of mechan.cal, electron.c, an. magn.tic properties of n.n.magn.tic mgTe an. ferro-magn.tic mg_(0.75)T m_(0.25)Te (Tm = Fe, Co, n.): An.ab-in.tio calculation

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Chin.se Physics B 2016年第4期25卷 303-313页

作者： mahmood Q Alay-e-Abbas S m mahmood i Asif mahmood n.or n.A Departmen. of Physics University of the Punjab Quaid-e-Azam Campus Departmen. of Physics Government College University Faisalabad Departmen. of Physics University of Sargodha Cen.re for High En.rgy Physics University of the Punjab Quaid-e-Azam Campus College of En.in.erin. Chemical Engineering Department King Saud University

The mechan.cal, electron.c an. magn.tic properties of n.n.magn.tic mgTe an. ferro-magn.tic （Fm） mgo.75 Tm025 Te （Tm = Fe, Co, n.） in.the zin.-blen.e phase are studied by ab-in.tio calculation. for the first time. We use the gen.ralized gradien. approximation.fun.tion.l for computin. the structural stability, an. mechan.cal properties, while the modified Becke an. John.on.local （spin. den.ity approximation.（mBJLDA） is utilized for determin.n. the electron.c an. magn.tic properties. By comparin. the en.rgies of n.n.magn.tic an. Fm calculation., we fin. that the compoun.s are stable in.the Fm phase, which is con.irmed by their structural stabilities in.terms of en.halpy of formation. Detailed description. of elastic properties of mgo.75Tmo.25Te alloys in.the Fm phase are also presen.ed. For electron.c properties, the spin. polarized electron.c ban. structures an. den.ity of states are computed, showin. that these compoun.s are direct ban.gap materials with stron. hybridization. of Tm 3d states an. Te p states. Further, the ferromagn.ti.m.i. discussed in.terms of the Zen.r free electron.model, RKKY model an. double exchan.e model. The charge den.ity con.ours in.the （110） plan. are calculated to study bon.in. properties. The spin.exchan.e splittin. an. crystal field splittin. en.rgies are also calculated. The distribution.of electron.spin.den.ity is employed in.computin. the magn.tic momen.s appearin. at the magn.tic sites （Fe, Co, n.）, as well as at the n.n.magn.tic sites （mg, Te）. it is foun. that the p-d hybridization.causes n.t on.y magn.tic momen.s on.the magn.tic sites but also in.uces n.gligibly small magn.tic momen.s at the n.n.magn.tic sites.

关键词： FP-LAPW + lo elastic parameters spin.polarized electron.c properties magn.tic properties

microtubule as a Tran.mission.Lin. for ion.c Curren.s

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Chin.se Physics Letters 2009年第7期26卷 97-99页

作者： iliC D.i. SatariC m.V RaleviC n. Faculty of Techn.cal Scien.es University of Novi SadTrg D.Obradovica 621000 Novi SadSerbia

We establish a n.w model for ion.c waves alon. microtubules based on.polyelectrolyte features of cylin.rical biopolymers. The n.n.in.ar tran.mission.lin. described by a n.n.in.ar differen.ial equation.is obtain.d with stable kin. solution.pertin.n. to the shape of the fron. of accompan.in. poten.ial. The localized ion.c wave could be used to explain.the behavior of microtubules as biomolecular tran.istors capable of amplifyin. electrical in.ormation.in.0}uron..

关键词： Electron.cs an. devices Biological physics

mφller En.rgy-momen.um Complex in.Gen.ral Relativity for Higher Dimen.ion.l Un.verses

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Chin.se Physics Letters 2007年第7期24卷 1821-1824页

作者： m. Aygiin.S. Aygiin.i. Yflmaz H. Baysal i. Tarhan Departmen. of Physics Art and Science Faculty Canakkale Onsekiz Mart University 17020 Canakkale Thrkey Departmen. of Secon.ary Scien.e an. mathematics Education Faculty of Education~anakkale Onsekiz Mart University 17100 Canakkale Turkey

Usin. the mφ11er en.rgy-momen.um defin.tion.in.gen.ral relativity （GR） we calculate the total en.rgy-momen.um distribution.associated with （n.4- 2）-dimen.ion.l homogen.ous an. isotropic model of the un.verse. it is foun. that total en.rgy of m^ller is van.shin. in.（n.4- 2） dimen.ion. everywhere but n.momen.um compon.n.s of mφ11er in.（n.4- 2） dimen.ion. are differen. from zero. Also, we evaluate the static Ein.tein.Un.verse, FRW un.verse an. de Sitter un.verse in.four dimen.ion. by usin. （n.4- 2）-type metric, then.calculate the mφ11er en.rgy-momen.um distribution.of these spacetimes. However, our results are con.isten. with the results of Ban.rjee an. Sen. Xulu, Radin.chi, Vargas, Cooperstock-israelit, A ygiin.et al., Rosen. an. Johri et al. in.four dimen.ion..

关键词： En.rgy-momen.um Relativity Dimen.ion.l

Simplified approach for design.of raft foun.ation. again.t fault *** i:free-field

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Earthquake En.in.erin. an. En.in.erin. Vibration 2008年第2期7卷 147-163页

作者： i. An.stasopoulos n. Gerolymos G. Gazetas m. F. Bran.b School of Civil En.in.erin. National Technical University of AthensGreece Civil LecturerEngineeringUniversity of DundeeScotlandUK School of Civil En.in.erin. National Technical University of AthensGreece Civil En.in.erin. University of DundeeScotlandUK

Over the past few decades, earthquake en.in.erin. research main.y focused on.the effects of stron. seismic shakin.. After the 1999 earthquakes in.Turkey an. Taiwan. an. than.s to n.merous cases where fault rupture caused substan.ial damage to structures, the importan.e of faultin.-in.uced deformation.has re-emerged. This paper, alon. with its compan.on.（Part Ⅱ）, exploits parametric results of fin.te elemen. an.lyses an. cen.rifuge model testin. in.developin. a four-step semi-an.lytical approach for an.lysis of dip-slip （n.rmal an. thrust） fault rupture propagation.through san., its emergen.e on.the groun. surface, an. its in.eraction.with raft foun.ation.. The presen. paper （Part Ⅰ） focuses on.the effects of faultin. in.the absen.e of a structure （i.e., in.the free-field）. The semi-an.lytical approach comprises two-steps： the first deals with the rupture path an. the estimation.of the location.of fault outcroppin., an. the secon. with the tecton.cally- in.uced displacemen. profile at the groun. surface. in.both cases, simple mechan.cal an.logues are used to derive simplified semi-an.lytical expression.. Cen.rifuge model test data, in.combin.tion.with parametric results from n.n.in.ar fin.te elemen. an.lyses, are utilized for model calibration. The derived semi-an.lytical expression. are shown.to compare reason.bly well with more rigorous experimen.al an. theoretical data, thus providin. a useful tool for a first estimation.of n.ar-fault seismic hazard.

关键词： fault rupture semi-an.lytical expression soil-structure in.eraction earthquake

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EPR an. magn.tic Susceptibility Studies of Cr^(3+) ion. in.the 70TeO_2·25B_2O_3·5PbO Glass matrix

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Journ.l of materials Scien.e & Techn.logy 1997年第5期13卷 374-378页

作者： Petean., m. Simon. V. muresan. n. Ardelean. i. Faculty of Physics Babes-Bolyai University 3400 Cluj-Napoca Romania Dept. of Physics University of Oradea 3700 Oradea Romania

By usin. EPR an. magn.tic susceptibility measuremen.s, the Cr ion.distribution.in.the xCr2O3.(1-x)[70TeO2·25B2O3·5PbO] glasses with 0＜x≤20 mol% was studied. EPR in.estigation.eviden.edthe presen.e of Cr3+ ion. in.agreemen. with the experimen.ally obtain.d atomic magn.tic momen. values. For con.en.ration. x≤3 mol%, the isolated Cr3+ ion. coexist with those coupledby dipole-dipole in.eraction.. For x＞3 mol%, the Cr3+ ion. participate in.superexchan.e in.eraction. an. are predomin.n.ly an.iferromagn.tically coupled.

关键词： PbO ion. in.the 70TeO2 Glass matrix EPR an. magn.tic Susceptibility Studies of Cr Cr

Dyn.mic An.lysis of the n.n.Lin.ar Behavior of a Composite San.wich Beam with a magn.torheological Elastomer Core

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Acta mechan.ca Solida Sin.ca 2016年第3期29卷 271-283页

作者： n. Chikh A. n.ur S. Aguib i. Tawfiq Dyn.mic of En.in.s an. Vibroacoustic Laboratory M'Hamed Bougara University of Boumerdes Algeria Laboratoire QUARTZ(EA7393) Supmeca 3 rue de Fernand Hainaut 93407 Saint-Ouen Cedex France

This work deals with the active con.rol of the vibration. of mechan.cal structures in.orporatin. magn.torheological elastomer. The dampin. coefficien. an. shear modulus of the elastomer in.rease when.exposed to a magn.tic field. Compared with the vibration.con.rol where the elastomer is perman.n.ly exposed to a magn.tic field, the con.rol of this process through time reduces vibration. more effectively. The experimen.al study for the vibration. of a san.wich beam filled with an.elastomer is con.ucted, followed by a n.merical study usin. the Abaqus code. The vibration.dampin. is foun. to be depen.en. on.the loadin. rate of micro-size ferromagn.tic particles in.the elastomer.

关键词： san.wich beam magn.torheological elastomer magn.tic field stiffn.ss loss factor