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Hea.th 2010年第8期2卷 906-912页

作者： a.-a.a.Ja.eel a.fi Muha.med a.in Hussa.n a.if kouatli a. amjad 不详

Congenita. hepa.ic a.terio-venous ma.forma.ions (a.M) a.e ra.e va.cula. a.oma.ies a.d ha.e ra.ely been reported in the presence of congeni-ta. hea.t disea.e. The reported ca.es a.e mostly hema.gioma. fed either by the hepa.ic a.tery itself or by one of its bra.ches. We present two unique hepa.ic a.M ca.es in the presence of congenita. hea.t defects in which the a.M wa. not fed by the hepa.ic a.teria. system. Tra.sca.heter coil embolisa.ion wa. successfully ca.ried out in both of them by using non-deta.ha.le Gia.turco coils. Complete occlusion wa. a.hieved without a.y sequel.

关键词： a.terio-venous Ma.forma.ion Tra.s-Ca.heter Embolisa.ion Congenita. Hea.t Disea.e

Comprehensive Review a.d a.a.ysis on Fa.ia. Emotion Recognition:Performa.ce Insights into Deep a.d Tra.itiona. Lea.ning with Current Upda.es a.d Cha.lenges

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Computers, Ma.eria.s & Continua 2025年第1期82卷 41-72页

作者： amjad Rehma. Muha.ma. Muja.id a.ex Elya.sih Ba.a. a.Ghofa.ly Sa.ed a.i Omer Ba.a. a.tificia. Intelligence&Da.a.a.a.ytics La. College of Computer&Information SciencesPrince Sultan UniversityRiyadh11586Saudi Arabia MIS Depa.tment College of Business a.ministra.ion Prince Sattam Bin Abdulaziz UniversityAlKharj11942Saudi Arabia

In computer vision a.d a.tificia. intelligence,a.toma.ic fa.ia. expression-ba.ed emotion identifica.ion of huma.s ha. become a.popula. resea.ch a.d industry *** demonstra.ions a.d a.plica.ions in severa. fields,including computer ga.es,sma.t homes,expression a.a.ysis,gesture recognition,surveilla.ce films,depression thera.y,pa.ientmonitoring,a.xiety,a.d others,ha.e brought a.tention to its significa.t a.a.emic a.d commercia. *** study empha.izes resea.ch tha. ha. only employed fa.ia. ima.es for fa.e expression recognition(FER),beca.se fa.ia. expressions a.e a.ba.ic wa. tha. people communica.e mea.ing to ea.h *** immense a.hievement of deep lea.ning ha. resulted in a.growing use of its much a.chitecture to enha.ce *** review is on ma.hine lea.ning,deep lea.ning,a.d hybrid methods’use of preprocessing,a.gmenta.ion techniques,a.d fea.ure extra.tion for tempora. properties of successive fra.es of *** following section gives a.brief summa.y of a.sessment criteria.tha. a.e a.cessible to the public a.d then compa.es them with benchma.k results the most trustworthy wa. to a.sess FER-rela.ed resea.ch topics *** this review,a.brief synopsis of the subject ma.ter ma. be beneficia. for novices in the field of FER a. well a. sea.oned schola.s seeking fruitful a.enues for further *** informa.ion conveys funda.enta. knowledge a.d provides a.comprehensive understa.ding of the most recent sta.e-of-the-a.t resea.ch.

关键词： Fa.e emotion recognition deep lea.ning hybrid lea.ning CK+ fa.ia. ima.es ma.hine lea.ning technologica. development

Progress in twin roll ca.ting of ma.nesium a.loys: a.review

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Journa. of Ma.nesium a.d a.loys 2021年第2期9卷 362-391页

作者： amjad Ja.a.d Fra.k Czerwinski Ca.metMa.ERIa.S Natural Resources CanadaHamiltonOntarioL8P 0A5Canada

Twin roll ca.ting wa. commercia.ized for a.strip production from ferrous a.d non-ferrous a.loys in the 1950 s;however,its a.plica.ion to ma.nesium ha. proven difficult a.d still crea.es ma.or *** report describes globa. efforts in expa.ding ma.ufa.turing ca.a.ilities of ma.nesium sheet through twin roll ca.ting pa.h,offering ma.y benefits,including a.reduction in number of processing steps a.d energy *** a.dition to ha.dwa.e design,a.loy tra.sforma.ion during processing,product microstructure a.d properties,exa.ples of successful solutions a.ong with present technology a.d knowledge limita.ions a.e discussed.a.pa.ticula. a.tention is pa.d to developments a. Ca.met Ma.ERIa.S,ha.ing the only in North a.erica.pilot sca.e twin roll ca.ting fa.ility,devoted to *** a.e described tha. a.m a. design of new ma.nesium a.loys,which could ta.e a.va.ta.e of unique processing conditions during twin roll ca.ting a.d contribute to the overa.l progress in ma.nesium sheet ma.ufa.turing.

关键词： Twin roll ca.ting Ma.nesium a.loys Solidifica.ion Ma.nesium sheet

Numerica. simula.ion of compression corner flows a. Ma.h number 9

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Chinese Journa. of a.rona.tics 2020年第6期33卷 1611-1624页

作者： amjad a.a.Ha.Kha.id a.UHa.Y Depa.tment of a.rospa.e Engineering King Abdulaziz UniversityJeddah 21589Saudi Arabia

a.hypersonic vehicle encounters a.wide ra.ge of conditions during its complete flight *** flight conditions ma. va.y from low to high Ma.h numbers with va.ying a.gles of *** nea.-wa.l viscous dissipa.ion a.socia.ed with flows a. combined high Ma.h a.d Reynolds numbers lea.s to significa.t wa.l hea. tra.sfer ra.es a.d shea. *** shock wa.e/bounda.y-la.er intera.tion results in a.flow sepa.a.ion region,which commonly a.gments tota. pressure losses in the flow a.d lowers the efficiency of a.rodyna.ic control surfa.es such a. fins insta.led on a.*** sta.da.d turbulence models,when used to resolve such flows,result in incorrect sepa.a.ion bubble size for la.ge sepa.a.ed ***,it results in a. ina.cura.e a.rodyna.ic loa.,such a. the wa.l pressures,skin friction distribution,a.d hea. tra.sfer *** previous studies,the a.plica.ion of the shock-unstea.iness correction to the sta.da.d two-equa.ion k-ωturbulence model improved the sepa.a.ion bubble size lea.ing to a. a.cura.e pressure prediction a.d shock definition with the a.sumption of consta.t Pra.dtl *** the present work,the new shock-unstea.iness modifica.ion to the k-ωturbulence model is a.plied to the hypersonic compression corner *** new model with va.ia.le Pra.dtl number is ba.ed on the model pa.a.eter,which depends upon the loca. density *** computed wa.l pressures,hea. flux a.d flow field a.e compa.ed to the experimenta. da.a.a.pa.a.etric study is ca.ried out by va.ying compression deflection a.gles,free strea. Reynolds number a.d wa.l tempera.ures to compute the flow field a.d wa.l da.a.a.cura.ely,pa.ticula.ly in the shock bounda.y la.er intera.tion *** new shockunstea.iness modified k-ωmodel with va.ia.le Pra.dtl number shows a. a.cura.e prediction of initia. pressure rise loca.ion,pressure distribution in the pla.ea. region a.d hea. flux in compa.ison to the sta.da.d k-ωmodel.

关键词： Bounda.y la.er Expa.sion fa. Hea. tra.sfer Hypersonic flows Sepa.a.ion length Shock-unstea.iness model Shock wa.e Turbulence model Turbulent Pra.dtl number

Solitons a.d qua.i-Gra.mia.s of the genera.ized la.tice Heisenberg ma.net model

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Communica.ions in Theoretica. Physics 2023年第8期75卷 42-53页

作者： Zeesha. amjad Bushra.Ha.der Depa.tment of Physics University of the PunjabQuaid-e-Azam CampusLahore-54590Pakistan

In this pa.er,we study the discrete Da.boux a.d sta.da.d bina.y Da.boux tra.sforma.ion for the genera.ized la.tice Heisenberg ma.net *** ca.cula.e the qua.i-Gra.mia. solutions by the itera.ion of sta.da.d bina.y Da.boux ***,we derive the explicit ma.rix solutions for the bina.y Da.boux ma.rix a.d then reduce them to the elementa.y Da.boux ma.rix a.d plot the dyna.ics of solutions.

关键词： qua.i-Gra.mia. discrete integra.le systems bina.y Da.boux tra.sforma.ion

Potentia. of pla.t polyphenol oxida.es in the decoloriza.ion a.d remova. of textile a.d non-textile dyes

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Journa. of Environmenta. Sciences 2007年第4期19卷 396-402页

作者： amjad a.I Kha. Qa.YUM Husa.n Depa.tment of Biochemistry Fa.ulty of Life Science Aligarh Muslim UniversityAligarh-202 002India.

In this study a. effort ha. been ma.e to use pla.t polyphenol oxida.es; pota.o （Sola.um tuberosum） a.d brinja. （Sola.um melongena., for the trea.ment of va.ious importa.t dyes used in textile a.d other industries. The a.monium sulpha.e fra.tiona.ed enzyme prepa.a.ions were used to trea. a.number of dyes under va.ious experimenta. conditions. Ma.ority of the trea.ed dyes were ma.ima.ly decolorized a. pH 3.0. Some of the dyes were quickly decolorized wherea. others were ma.gina.ly decolorized. The initia. first hour wa. sufficient for the ma.imum decoloriza.ion of dyes. The ra.e of decoloriza.ion wa. quite slow on long trea.ment of dyes. Enha.cement in the dye decoloriza.ion wa. noticed on increa.ing the concentra.ion of enzymes. The complex mixtures of dyes were trea.ed with both prepa.a.ions of polyphenol oxida.es in the buffers of va.ying pH va.ues. Pota.o polyphenol oxida.e wa. significa.tly more effective in decolorizing the dyes to higher extent a. compa.ed to the enzyme obta.ned from brinja. polyphenol oxida.e. Decoloriza.ion of dyes a.d their mixtures, followed by the forma.ion of a. insoluble precipita.e, which could be ea.ily removed simply by centrifuga.ion.

关键词： decoloriza.ion textile dyes polyphenol oxida.es pota.o brinja. wa.tewa.er trea.ment remova. of dyes

Dyna.ic replica.ion of web contents

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Science in China.Series F) 2007年第6期50卷 811-830页

作者： amjad Ma.mood Depa.tment of Computer Science University of Bahrain Kingdom of Bahrain

The phenomena. growth of the World Wide Web ha. brought huge increa.e in the tra.fic to the popula. web sites. Long dela.s a.d denia. of service experienced by the end-users, especia.ly during the pea. hours, continues to be the common problem while a.cessing popula. sites. Replica.ing some of the objects a. multiple sites in a.distributed web-server environment is one of the possible solutions to improve the response time/la.ency. The decision of wha. a.d where to replica.e requires solving a.constra.nt optimiza.ion problem, which is NP-complete in gen- era.. In this pa.er, we consider the problem of pla.ing copies of objects in a.dis- tributed web server system to minimize the cost of serving rea. a.d write requests when the web servers ha.e limited stora.e ca.a.ity. We formula.e the problem a. a.0-1 optimiza.ion problem a.d present a.polynomia. time greedy a.gorithm with ba.ktra.king to dyna.ica.ly replica.e objects a. the a.propria.e sites to minimize a.cost function. To reduce the solution sea.ch spa.e, we present necessa.y condi- tions for a.site to ha.e a.replica.of a. object in order to minimize the cost function. We present simula.ion results for a.va.iety of problems to illustra.e the a.cura.y a.d efficiency of the proposed a.gorithms a.d compa.e them with those of some well-known a.gorithms. The simula.ion results demonstra.e the superiority of the proposed a.gorithms.

关键词： object replica.ion Web distributed web-server system da.a.pla.ement Internet

Prediction of pressure gra.ient a.d hold-up in horizonta. liquid-liquid pipe flow

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Petroleum Science 2023年第6期20卷 3766-3782页

作者： Syed amjad a.med Bibin John School of Mecha.ica. Engineering Vellore Institute of TechnologyIndia Depa.tment of Mecha.ica. Engineering C Abdul Hakeem College of Engineering&TechnologyIndia

This pa.er a.ms to propose correla.ions to predict pressure gra.ient,friction fa.tor a.d fluid pha.e hold-up in liquid-liquid horizonta. pipe *** develop the correla.ions,experiments a.e conducted using high viscous oils(202 a.d 630 mPa.s)in a.steel pipe of length 11.25 m a.d length-to-dia.eter ra.io of *** a.dition,the experimenta. da.a.from the litera.ure comprising wide ra.ge of flow a.d fluid properties is *** the a.a.ysis,the liquid-liquid pipe flow da.a.is ca.egorized into two a.:stra.ified a.d *** existing friction fa.tor correla.ions a.e modified to incorpora.e the effects of viscosity of the oil pha.e,interfa.ia. curva.ure(conta.t/wetting a.gle-in lieu of ma.eria. of the pipe)a.d fluid pha.e *** the two-fluid model of stra.ified flow,the wa.l stress a.d interfa.ia. stress correla.ions a.e substituted with superficia. velocities of fluids a.d superficia. Reynolds numbers of fluid pha.es repla.ing fluid pha.e velocities a.d fluid Reynolds ***,for dispersed flow,a. effective Reynolds number is described a. the sum of superficia. Reynolds number of oil a.d wa.er *** the genera.ly employed mea. or mixture Reynolds number with the effective Reynolds number into the existing single-pha.e turbulent flow friction fa.tor correla.ion,a. effective friction fa.tor for oil-wa.er flow is *** the proposed correla.ions,the pressure gra.ient a.ross the oil-wa.er flow a.d hold-up volume fra.tion a.e predicted with significa.t reduction in error compa.ed with tha. of conventiona.ly employed *** a.era.e error a.d sta.da.d devia.ion va.ues of−7.06%,20.72%a.d 0.31%,18.79%a.e found for stra.ified flow a.d dispersed flow respectively.

关键词： oil-wa.er flow two-fluid model pressure gra.ient stra.ified flow dispersed flow

a.note on telepa.a.lel Killing vector fields in Bia.chi type Ⅷ a.d Ⅸ spa.e-times in telepa.a.lel theory of gra.ita.ion

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Chinese Physics B 2011年第7期20卷 88-93页

作者： Ghula. Sha.bir amjad a.i Suha.l Kha. Fa.ulty of Engineering Sciences GIK Institute of Engineering Sciences and TechnologyTopiSwabiKhyber PukhtoonkhwaPakistan Depa.tment of Ba.ic Sciences University of Engineering and TechnologyPeshawarKhyber PukhtoonkhwaPakistan

In this pa.er we cla.sify Bia.chi type Ⅷ a.d IX spa.e-times a.cording to their telepa.a.lel Killing vector fields in the telepa.a.lel theory of gra.ita.ion by using a.direct integra.ion technique. It turns out tha. the dimensions of the telepa.a.lel Killing vector fields a.e either 4 or 5. From the a.ove study we ha.e shown tha. the Killing vector fields for Bia.chi type Ⅷ a.d Ⅸ spa.e-times in the context of telepa.a.lel theory a.e different from tha. in genera. rela.ivity.

关键词： WeitzenbSck geometry telepa.a.lel theory of gra.ita.ion conserva.ion la.s

Effect of hot rolling on microstructure a.d properties of the ZEK100 a.loy

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Journa. of Ma.nesium a.d a.loys 2019年第1期7卷 27-37页

作者： amjad Ja.a.d Fra.k Czerwinski Ca.metMa.ERIa.S 183 Longwood Road SouthHamiltonOntario L8P 0A5Canada

a.tempts to expa.d ma.ufa.turing ca.a.ilities of ma.nesium-ba.ed sheet ma.eria.s a.e *** a.-ca.t ZEK100(Mg-1.2Zn-0.35Zr-0.17Nd,in wt%)ma.nesium a.loy wa. subjected to hot rolling a. tempera.ures from 350℃to 450℃using the la.ora.ory 50 ton reversible mill with prehea.ed rolls to ma.ufa.ture the 1.5-1.7 mm thick *** rolling tempera.ure a.fected the sheet properties a.d a. increa.e in the rolling tempera.ure from 250 to 450℃ca.sed reduction of tensile strength from 257 to 228 MPa.a.-compa.ied by a.reduction in tensile yield stress from 237 to 185 *** the sa.e time,the a.loy elonga.ion increa.ed from 17 to 21%.For the sa.e rolling tempera.ure ra.ge,the compressive strength reduced from 418 to 351 *** post-rolling a.nea.ing a. 450℃led to reduction of both tensile a.d compressive properties with the la.gest cha.ges corresponding to the rolling tempera.ure of 350°*** correla.ion between the a.loy gra.n size a.ter rolling a.d the sheet properties wa. esta.lished where a.reduction in gra.n size wa. a.compa.ied by a. increa.e of both the tensile/compressive strength a.d yield *** on Ha.l-Petch rela.ionship a.d a. a.era.e gra.n size the correla.ion developed in this study ma. be used a. the prediction model for properties of the hot rolled ma.nesium *** results a.e discussed in terms of recent developments in ma.nesium sheet a.loys a.d the vita. role pla.ed in this process by ra.e ea.th elements.

关键词： Ma.nesium a.loys Hot deforma.ion Microstructure Ra.e ea.ths Sheet rolling