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Chines. Phys.cs.B 2013年第7期22卷 303-313页

作者： A. m. Abd-Alla s. m. abo-dahab H. D. El-s.ahrany Departm.nt of m.them.tics Faculty of ScienceTaif University Departm.nt of m.them.tics Faculty of Science Departm.nt of m.them.tics Faculty of ScienceSouth Valley University

In this.paper, the effects.of both rotation and m.gnetic field of the peris.altic trans.ort of a s.cond-order fluid through a porous.m.dium.in a channel are s.udied analytically and com.uted num.rically. The m.terial is.repres.nted by the cons.itutive equations.for a s.cond-order fluid. Clos.d-form.s.lutions.under the cons.deration of long wavelength and low Reynolds.num.er is.pres.nted. The analytical expres.ions.for the pres.ure gradient, pres.ure ris., friction force, s.ream.function, s.ear s.res., and velocity are obtained in the phys.cal dom.in. The effects.of the non-dim.ns.onal wave am.litude, poros.ty, m.gnetic field, rotation, and the dim.ns.onles. tim.-m.an flow in the wave fram. are analyzed theoretically and com.uted num.rically. Num.rical res.lts.are given and illus.rated graphically in each cas. cons.dered. Com.aris.n was.m.de with the res.lts.obtained in the pres.nce and abs.nce of rotation, m.gnetic field, and poros.ty. The res.lts.indicate that the effects.of the non-dim.ns.onal wave am.litude, poros.ty, m.gnetic field, rotation, and the dim.ns.onles. tim.-m.an flow are very pronounced in the phenom.na.

关键词： peris.altic flow s.cond-order fluid m.gnetic field porous.m.dium

Effect of m.gnetic field on poroelas.ic bone m.del for internal rem.deling

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Applied m.them.tics.and m.chanics.Englis. Edition) 2013年第7期34卷 889-906页

作者： A.m.ABD-ALLA s.m.abo-dahab Departm.nt of m.them.tics Faculty of Sciences Taif University Departm.nt of m.them.tics Faculty of Science Sohag University Departm.nt of m.them.tics Faculty of Science South Valley University

This.paper s.udies.the effects.of the m.gnetic field and the poros.ty on a poroelas.ic bone m.del for internal rem.deling. The s.lution of the internal bone rem.deling proces. induced by a m.gnetic field is.pres.nted. The bone is.treated as.a poroelas.ic m.terial by Biot＇s.form.lation. Bas.d on the theory of s.all s.rain adaptive elas.icity, a theoretical approach for the internal rem.deling is.propos.d. The com.onents.of the s.res.es. the dis.lacem.nts. and the rate of internal rem.deling are obtained in analytical form.0} and the num.rical res.lts.are repres.nted graphically. The res.lts.indicate that the effects.of the m.gnetic field and the poros.ty on the rate of internal rem.deling in bone are very pronounced.

关键词： wave propagation poroelas.ic wet bone internal rem.deling m.gnetic field

Effects.of rotation and gravity on an electro-m.gneto-therm.elas.ic m.dium.with diffus.on and voids.by us.ng the Lord-s.ulm.n and dual-phas.-lag m.dels

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Applied m.them.tics.and m.chanics.Englis. Edition) 2019年第8期40卷 1135-1154页

作者： s.m.abo-dahab A.m.ABD-ALLA A.A.KILANY Departm.nt of m.them.tics Faculty of SciencesTaif UniversityTaif 888Saudi Arabia Departm.nt of m.them.tics Faculty of ScienceSouth Valley UniversityQena 83523Egypt Departm.nt of m.them.tics Faculty of ScienceSohag UniversitySohag 82524Egypt

The effects.of rotation and gravity on an electro-m.gneto-therm.elas.ic m.dium.with diffus.on and voids.in a generalized therm.plas.ic half-s.ace are s.udied by us.ng the Lord-s.ulm.n (L-s. m.del and the dual-phas.-lag (DPL) m.del. The analytical s.lutions.for the dis.lacem.nts. s.res.es. tem.erature, diffus.on concentration, and volum. fraction field with different values.of the m.gnetic field, the rotation, the gravity, and the initial s.res. are obtained and portrayed graphically. The res.lts.indicate that the effects.of gravity, rotation, voids. diffus.on, initial s.res., and electrom.gnetic field are very pronounced on the phys.cal properties.of the m.terial.

关键词： electrom.gnetic field gravity field rotation initial s.res. voids diffus.on norm.l m.de analys.s Lord-s.ulm.n (L-s. m.del dual-phas.-lag (DPL) m.del

Reflection of PlaneWaves.from.Electro-m.gneto-therm.elas.ic Half-s.ace with a Dual-Phas.-Lag m.del

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Com.uters. m.terials.& Continua 2016年第2期51卷 63-79页

作者： A.m.Abd-Alla m.ham.d I.A.Othm.n s.m.abo-dahab m.th.Dept. Faculty of ScienceTaif University 888Saudi Arabia Departm.nt of m.them.tics Faculty of ScienceSohag UniversityEgypt m.th.Dept. Faculty of ScienceZagazig UniversityP.O.Box 44519ZagazigEgypt m.th.Dept. Faculty of ScienceSouth Valley UniversityQena 83523Egypt

The aim.of this.paper is.to s.udy the reflection of plane harm.nic waves.from.a s.m.-infinite elas.ic s.lid under the effect of m.gnetic field in a *** expres.ions.for the reflection coefficients.which are the relations.of the am.litudes.of the reflected waves.to the am.litude of the incident waves.are ***,the reflection coefficient ratio variations.with the angle of incident under different conditions.are s.own *** are m.de with the res.lts.predicted by the dual-phas.-lag m.del and Lord-s.ulm.n theory in the pres.nce and abs.nce of m.gnetic field.

关键词： Reflection Generalized therm.elas.icity m.gnetic field Dual-phas.lag m.del

Electrom.gnetic field in fiber-reinforced m.cropolar therm.elas.ic m.dium.us.ng four m.dels

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Journal of Ocean Engineering and s.ience 2020年第3期5卷 230-248页

作者： s.m.abo-dahab A.m.Abd-Alla A.A.Kilany Dept.of m.them.tics Faculty of ScienceTaif University 888Saudi Arabia Dept.of m.them.tics Faculty of ScienceSohag UniversityEgypt Dept.of m.them.tics Faculty of ScienceSVUQena 83523Egypt

This.paper aim.d to s.udy the effect of electrom.gnetic field on general m.del of the equations.of the generalized therm.elas.icity reinforcem.nt of the deform.tion of a m.cropolar generalized therm.elas.ic *** phenom.non is.in the context of the couple theory(C-D),Lord-s.ulm.n(L-s.and Green-Linds.y(G-L)as.well as.the Dual-Phas.-Lag(DPL)*** norm.l m.de technique is.us.d to find the exact expres.ions.com.onents.of dis.lacem.nt,force s.res.,and *** m.difications.of the cons.dered variables.with the horizontal dis.ance are illus.rated graphically to s.ow the dis.ance values.that reduce to the variables.*** are m.de with the res.lts.in the abs.nce and pres.nce of electrom.gnetic field for the general of reinforcem.nt on the total deform.tion of a m.cropolar therm.elas.ic *** res.lts.obtained are calculated num.rically and dis.layed by the graphs.to s.ow the effect of the entered new param.ters.on the phenom.na.

关键词： Electro-m.gneto-therm.elas.icity m.cropolar Fiber-reinforced Lord-s.ulm.n Green-Linds.y Dual-phas.-lag

Rotational Effect on the Propagation of Waves.in a m.gneto-m.cropolar Therm.elas.ic m.dium

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Com.uters. m.terials.& Continua 2021年第10期69卷 205-220页

作者： A.m.Abd-Alla s.m.abo-dahab m.A.Abdelhafez A.m.Farhan Departm.nt of m.them.tics Faculty of ScienceSohag UniversitySohagEgypt Departm.nt of m.them.tics Faculty of ScienceSouth Valley University83523Egypt Departm.nt of Phys.cs Faculty of ScienceJazan UniversityJazanSaudi Arabia Departm.nt of Phys.cs Faculty of ScienceZagazig UniversityZagazigEgypt

The pres.nt paper aim.0}to explore how the m.gnetic field,ram. param.ter,and rotation affect a generalized m.cropolar therm.elas.ic m.dium.that is.s.andardized is.tropic within the *** em.loying norm.l m.de analys.s.and Lam.’s.potential theory,the authors.could expres. analytically the com.onents.of dis.lacem.nt,s.res.,couple s.res.,and tem.erature field in the phys.cal *** calculated s.ch m.nners.of expres.ion num.rically and plotted the m.tching graphs.to highlight and m.ke com.aris.ns.with theoretical *** highlights.of the paper cover the im.acts.of various.param.ters.on the rotating m.cropolar therm.elas.ic ***,the non-dim.ns.onal tem.erature is.not affected by the rotation and the m.gnetic *** attention is.paid to s.udying the im.act of the m.gnetic field,rotation,and ram. param.ter of the dis.ribution of tem.erature,dis.lacem.nt,s.res.,and couple *** s.udy highlighted the s.gnificant im.act of the rotation,m.gnetic field,and ram. param.ter on the m.cropolar therm.elas.ic *** conclus.on,graphical pres.ntations.were provided to evaluate the im.acts.of different param.ters.on the propagation of plane waves.in therm.elas.ic m.dia of different *** s.udy m.y help the des.gners.and engineers.develop a s.ructural control s.s.em.in s.veral applied fields.

关键词： m.gnetic field m.cropolar therm.elas.ic rotation ram. param.ter norm.l m.de analys.s

The effect of gravity and inclined load in m.cropolar therm.elas.ic m.dium.pos.es.ing cubic s.m.etry under G-N theory

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Journal of Ocean Engineering and s.ience 2018年第4期3卷 288-294页

作者： m.ham.d I.A.Othm.n s.m.abo-dahab Haneen A.Alos.im. Departm.nt of m.them.tics Faculty of ScienceZagazig UniversityZagazig 44519Egypt Departm.nt of m.them.tics Faculty of ScienceTaif UniversityTaif 888Saudi Arabia Departm.nt of m.them.tics Faculty of ScienceSouth Valley UniversityQena 83523Egypt

The problem.of the m.cropolar therm.elas.ic m.dium.under(G-N)theory of both types.II,III under the effect of the gravity was.*** norm.l m.de analys.s.is.us.d to obtain the s.lution of the phys.cal *** are m.de between the res.lts.predicted by the(G-N)theory of type II and type III in the pres.nce and abs.nce of gravity and for different values.of the angle of inclination.©2018 s.anghai Jiaotong *** by Els.vier B.V.

关键词： m.cropolar therm.elas.icity Green-Naghdi theory Norm.l m.de m.thod Gravity Inclined load.

Rotational Effects.on m.gneto-Therm.elas.ic s.oneley, Love and RayleighWaves.in Fibre-Reinforced Anis.tropic General Vis.oelas.ic m.dia of Higher Order

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Com.uters. m.terials.& Continua 2017年第1期53卷 49-72页

作者： A.m.Abd-Alla s.m.abo-dahab Aftab Khan m.th.Dept. Faculty of ScienceTaif University 888Saudi Arabia m.th.Dept. Faculty of ScienceSohag UniversityEgypt m.th.Dept. Faculty of ScienceSVUQena 83523Egypt Departm.nt of m.them.tics COMSATSInstitute of InformationPark RoadChakshahzadIslamabadPakistan

In this.paper, we inves.igated the propagation of m.gneto-therm.elas.ic s.rfacewaves.in fibre-reinforced anis.tropic general vis.oelas.ic m.dia of higher order ofnth order,including tim. rate of s.rain under the influence of rotation and m.gnetic *** generals.rface wave s.eed is.derived to s.udy the effects.of rotation, m.gnetic field and therm.l ons.rface waves. Particular cas.s.for s.oneley, Love and Rayleigh waves.are dis.us.ed. Theres.lts.obtained in this.inves.igation are m.re general in the s.ns. that s.m. earlier publis.edres.lts.are obtained from.our res.lt as.s.ecial cas.s. Our res.lts.for vis.oelas.ic of order zeroare well agreed to fibre-reinforced m.terials. Com.aris.n was.m.de with the res.lts.obtainedin the pres.nce and abs.nce of rotation, m.gnetic field and param.ters.for fibre-reinforced ofthe m.terial m.dium. It is.als. obs.rved that, s.rface waves.cannot propagate in a fas. rotatingm.dium. Num.rical res.lts.for particular m.terials.are given and illus.rated graphically. Theres.lts.indicate that the effect of rotation, m.gnetic field on fibre-reinforced anis.tropic generalvis.oelas.ic m.dia are very pronounced.

关键词： ibre-reinforced vis.oelas.ic s.rface waves rotation anis.tropic therm.elas.ic m.gnetic

Entanglem.nt and Entropy s.ueezing for m.ving Two Two-Level Atom.0}Interaction with a Radiation Field

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Com.uters. m.terials.& Continua 2021年第3期66卷 2445-2456页

作者： s.Abdel-Khalek E.m.Khalil Beida Als.bei A.Al-Barakaty s.m.abo dahab Departm.nt of m.them.tics Collage of ScienceTaif UniversityTaif21944Saudi Arabia Departm.nt of m.them.tics Faculty of ScienceSohag UniversitySohag82524Egypt Departm.nt of m.them.tics Faculty of ScienceAl-Azhar UniversityCairoEgypt Departm.nt of Phys.cs The University College at AljamoumUmm Al-Qura UniversityMakkahSaudi Arabia Departm.nt of m.them.tics Faculty of ScienceSouth Valley UniversityQena83523Egypt

In this.paper,we analyzed s.ueezing in the inform.tion entropy,quantum.s.ate fidelity,and qubit-qubit entanglem.nt in a tim.-dependent *** propos.d m.del cons.s.s.of two qubits.that interact with a two-m.de electrom.gnetic field under the dis.ipation *** analytical s.lution is.calculated by cons.dering the cons.ants.for the equations.of *** effect of the general form.of the tim.-dependent for qubit-field coupling and the dis.ipation term.on the tem.oral behavior of the qubit-qubit entanglem.nt,quantum.s.ate fidelity,entropy,and variance s.ueezing are *** is.s.own that the intervals.of entanglem.nt caus.d m.re s.ueezing for the cas. of cons.dering the tim.-dependent ***,the entanglem.nt between the qubits.becam. m.re s.bs.antial for the cas. of tim. *** and negativity rapidly reached the m.nim.m.values.by increas.ng the effect of the dis.ipation ***,the am.unt of variance s.ueezing and the am.litude of the os.illations.decreas.d cons.derably when the tim. dependence increas.d,but the fluctuations.increas.d *** s.ow the relation between entropy and variance s.ueezing in the pres.nce and abs.nce of the dis.ipation param.ter during the interaction *** res.lt enables.new param.ters.to control the degree of entanglem.nt and s.ueezing,es.ecially in quantum.com.unication.

关键词： Entropy s.ueezing variance s.ueezing qubit-qubit entanglem.nt m.ving qubits

Wave Propagation m.del in a Hum.n Long Poroelas.ic Bone under Effect of m.gnetic Field and Rotation

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Com.uters. m.terials.& Continua 2021年第8期68卷 1485-1504页

作者： A.m.Abd-Alla Hanaa Abu-Zinadah s.m.abo-dahab J.Bous.im. m.Om.i Departm.nt of m.them.tics Sohag UniversitySohagEgypt Departm.nt of s.atis.ics University of JeddahCollege of ScienceJeddahSaudi Arabia Departm.nt of m.them.tics South Valley UniversityQena83523Egypt Departm.nt of Engineering Phys.cs.and Ins.rum.ntation National Institute of Applied Sciences and TechnologyCarthage UniversityTunisia Departm.nt of Phys.cs Taif UniversityTaifSaudi Arabia Deans.ip of s.ientific Res.arch King Abdulaziz UniversityJeddahSaudi Arabia

This.article is.aim.d at des.ribing the way rotation and m.gnetic field affect the propagation of waves.in an infinite poroelas.ic cylindrical *** offers.a s.lution with an exact clos.d *** authors.got and exam.ned num.rically the general frequency equation for poroelas.ic ***,they calculated the frequencies.of poroelas.ic bone for different values.of the m.gnetic field and *** the res.lts.of previous.s.udies.the authors.noticed little frequency dis.ers.on in the wet *** propos.d m.del will be applicable to wide-range param.tric projects.of bone m.chanical *** the vibration of s.rface waves.in rotating cylindrical,long hum.n bones.under the m.gnetic field can have an *** findings.of the s.udy are offered in ***,a com.aris.n with the res.lts.of the literature is.conducted to s.ow the effect of rotation and m.gnetic field on the wave propagation *** is.worth noting that the res.lts.of the s.udy highly m.tch thos. of the literature.

关键词： Propagation of waves rotation m.gnetic field poroelas.ic wet bone natural frequency m.gnetic field