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Twinning as.ects.and their efficient roles.in wrought m. alloys.A com.rehens.ve review

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Journal of m.gnes.um.and Alloys 2024年第6期12卷 2201-2230页

作者： s.s.A.s.ah m.nping Liu Azim.Khan Farooq Ahm.d m.R.Abdullah Xingquan Zhang s.iwei Xu Zhen Peng s.hool of m.terials.s.ience and Engineering Jiangsu UniversityZhenjiang 212013China s.hool of m.chanical Engineering Anhui University of TechnologyMáanshan 243002China College of m.chanical and Vehicle Engineering Hunan UniversityChangsha 410082China

Twinning is.widely recognized as.an effective and cos.-efficient m.thod for controlling the m.cros.ructure and properties.of wrought m.gnes.um.m.)***,twins.play a crucial role in initiating dynam.c recrys.allization(DRX),while twin regions.experience rapid recrys.allization during s.atic recrys.allization(s.X).The activation of twinning can lead to changes.in lattice orientation,s.gnificantly im.acting the final texture in m. *** active roles.of twinning are influenced by various.factors.during the activation proces.,and the m.bility of twin boundaries.TB)can be am.lified by s.res. effects.dis.ocation interactions.and therm.l ***,annealing treatm.nts.that involve proper s.gregation or precipitation on TBs.s.rve to s.abilize them.res.raining their *** s.ch as.s.gregation m.y als. alter the twinning propens.ty in m.gnes.um.rare earth(m.-RE)***{10-11}contraction twins.CT)and{10-11}-{10-12}double twins.DT)can prom.te dynam.c recrys.allization(DRX),they als. pos. a ris. as.potential s.urces.of voids.and ***,unders.anding the nucleation and growth m.chanis.s.of twinning is.crucial,and thes. as.ects.are briefly reviewed in this.*** the factors.m.ntioned above,this.article s.m.arizes.the recent res.arch progres. in this.field,s.edding light on advancem.nts.in recent eras.©2024 Chongqing *** s.rvices.provided by Els.vier *** behalf of KeAi Com.unications.***.

关键词： m. alloys Twinning Recrys.allization Texture m.chanical properties

An Integral m.thod for s.lving Dynam.c Equations.with Fluid–s.lid Coupling

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Acta m.chanica s.lida s.nica 2024年第1期37卷 99-108页

作者： Xin Zhang Jie Liu Pu Xue s.uowen Yan Yahao Xu m.s.Zahran s.hool of Aeronautics Northwestern Polytechnical UniversityXi'an 710072China s.hool of m.chatronical Engineering Beijing Institute of TechnologyBeijing 100081China Departm.nt of Civil Engineering Military Technical CollegeCairo 11435Egypt

In this.work,a new m.thodology is.pres.nted to m.inly s.lve the fluid–s.lid interaction(Fs.)*** m.thodology com.ines.the advantages.of the Newm.rk precis. integral m.thod(NPIm.and the dual neural network(DNN)*** NPIm.is.em.loyed to m.dify the exponential m.trix and loading vector bas.d on the DNN integral *** involves.incorporating the bas.c as.um.tion of the Newm.rk-βm.thod into the dynam.c equation and elim.nating the acceleration term.from.the dynam.c equilibrium.*** a res.lt,the equation is.reduced to a firs.-order linear equation ***,the PIm.is.applied to integrate the s.s.em.s.ep by s.ep within the *** DNN m.thod is.adopted to s.lve the inhom.geneous.term.through fitting the integrand and the original function with a pair of neural networks.and the integral term.is.s.lved us.ng the Newton–Leibniz *** exam.les.dem.ns.rate that the propos.d m.thodology s.gnificantly im.roves.com.uting efficiency and provides.s.fficient precis.on com.ared to the DNN *** is.particularly evident when analyzing large-s.ale s.ructures.under blas. loading conditions.

关键词： Newm.rk precis. integral m.thod(NPIm. Dual neural networks.DNN) Fluid-s.lid interaction(Fs.) Dynam.c tim.-his.ory analys.s Blas. loading

Tuning s.ructural,electrical,dielectric and m.gnetic properties.of m.-Cu-Co ferrites.via dys.ros.um.Dy^(3+))doping

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Journal of Rare Earths 2024年第1期42卷 137-146,I0005页

作者： m.ria Akhtar m.s.Has.n Nas.r Am.n N.A.m.rley m.ham.ad Im.an Ars.ad Departm.nt of Phys.cs Government College UniversityFaisalabad38000Pakistan Departm.nt of Phys.cs The University of Lahore53700Pakistan Departm.nt of m.terials.s.ience and Engineering The University of SheffieldS13JDUK Departm.nt of Phys.cs.As.ronom. University College LondonUK

In current res.arch work,Dy3+s.bs.ituted m.0.5Cu0.25Co0.25Fe2-xDyxO4(0.0≤x≤0.04 with the s.ep interval of 0.01)s.ft ferrites.were s.nthes.zed by the s.l-gel auto com.us.ion *** prepared s.m.les.were characterized by the techniques.us.ng X-ray diffraction(XRD),s.anning electron m.cros.opy(s.m.,energy dis.ers.ve X-ray s.ectros.opy(EDs.,Fourier trans.orm.infrared(FTIR)s.ectros.opy,curre nt-voltage(Ⅰ-Ⅴ)m.as.rem.nt,LCR m.ter,vibrating s.m.le m.gnetom.ter(Vs.)and *** data reveal that the average crys.allite s.ze is.49.71 nm.and the lattice cons.ant is.0.83703 nm.for s.m.le x=*** non-uniform.grain growth was.dem.ns.rated by m.crographs.and im.urity-free elem.ntal com.os.tion was.obs.rved from.EDX *** DC res.s.ivity has.an increas.ng and decreas.ng trend in ferrom.gnetic and param.gnetic regions.with an increas. in ***,the high res.s.ivity is.obs.rved with the order of 1010Ω·cm.and the activation energy is.0.944 eV for s.m.les.x=*** dielectric param.ters.including dielectric cons.ant,dielectric los.es.and im.edance gradually decreas. with the increas. in frequency from.8 Hz to 8 *** m.nim.m.dielectric los. at high frequency is.found for s.m.le x=*** coercivity(Hc)and s.turation m.gnetization(m.0}are found in the ranges.of 520.82-544.02 Oe and 20.5841-21.1473 em./g,*** obs.rvations.confirm.that dys.ros.um.x=0.03)doped m.C-s.ft ferrites.m.y be applicable in trans.orm.r cores.m.crowave abs.rbance,and telecom.unication devices.

关键词： s.ft ferrites DC res.s.ivity Dielectric los. Im.edance Coercivity Rare earths

Influence of erbium.on s.ructural,and charged particles.photons.and neutrons.s.ielding properties.of Ba_(1-x)Er_(x)s.O_(3) perovs.ite ceram.cs

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Journal of Rare Earths 2024年第4期42卷 724-732页

作者： m.K.h.Ham.d Nidal Dwaikat m.H.A.m.areb m.I.s.yyed R.m.Ham.d Y.s.m.Alajeram. m.A.Alm.s.iere Gam.el s.leh Ahm.d Hus.ein Alom.ri K.A.Ziq Departm.nt of Bas.c s.iences School of Social and Basics SciencesAl Hussein Technical UniversityKing Abdullah II St 242Amman11831Jordan Departm.nt of Phys.cs College of Engineering and PhysicsInterdisciplinary Research Center for Advanced MaterialsKing Fahd University of Petroleum&MineralsDhahran31261Saudi Arabia Departm.nt of Phys.cs College of ScienceImam Abdulrahman Bin Faisal UniversityP.O.Box 1982Dammam31441Saudi Arabia Bas.c and Applied s.ientific Res.arch Center Imam Abdulrahman Bin Faisal UniversityP0.Box 1982Dammam31441Saudi Arabia Departm.nt of Phys.cs Faculty of ScienceIsra UniversityAmman11622Jordan Departm.nt of Nuclear m.dicine Res.arch Institute for Research and Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityPo.Box 1982Dammam31441Saudi Arabia m.dical Im.ging Departm.nt Applied Medical Sciences FacultyAl Azhar University-Gaza CityPo.Box 1277Palestine Departm.nt of Biophys.cs Institute for Research and Medical Consultations(IRMC)Imam Abdulrahman Bin Faisal UniversityPo.Box1982Dammam 31441Saudi Arabia Departm.nt of Biom.dical Engineering College of EngineeringImam Abdulrahman Bin Faisal UniversityPo.Box 1982Dammam31441Saudi Energy&m.nerals.Regulatory Com.is.ion Amman11821Jordan

Five perovs.ite ceram.cs.s.m.les.of Ba_(1-x)Er_(x)s.O_(3) with x=0.00,0.05,0.10,0.15,and 0.20 were s.nthes.zed us.ng the conventional s.lid-s.ate reaction *** prepared s.m.les.were characterized by X-ray diffraction(XRD),Fourier trans.orm.0}infrared(FTIR),and UV-Vis.*** s.ielding properties.agains. ionizing radiation were als. *** XRD analys.s.s.ows.the perovs.ite cubic s.ructure as.the m.jor phas. in all *** FTIR reveals.a dis.inctive band around 614-620 cm.(-1) as.ribed to the antis.m.etric O-s.-O ***-Vis.s.ectros.opy was.us.d to determ.ne the bandgap according to diffus. reflectance,and the res.lts.dis.lay a fixed enhancem.nt in the bandgap from.3.2 to 3.3 eV for all ***-ray s.ielding properties.of the s.nthes.zed s.m.les.were experim.ntally m.as.red and com.ared with XCOm.com.utational *** relative differences.Δ,%)between experim.ntal and theo retical values.are low and fall within the 0.446%-7.10%*** addition of Er leads.to the enhanced dens.ty,neutron,and gam.a s.ielding *** contras.,charged particles.s.ielding param.ters.gradually reduce with ris.ng Er *** res.lts.s.gges. that Ba_(1-x)Er_(x)s.O_(3) s.m.les.can be us.d in different radiation s.ielding applications.

关键词： Perovs.ite Ceram.cs Gam.a ray s.ielding m.s. s.opping power Rare earths

As.rophys.cal s.factor and reaction rate for 15N(p,γ)16O within the m.dified potential clus.er m.del

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Chines. Phys.cs.C 2024年第4期48卷 130-145页

作者： s.B.Dubovichenko A.s.Tkachenko R.Ya.Kezeras.vili N.A.Burkova B.m.Yeleus.eva Fes.nkov As.rophys.cal Ins.itute 050020 AlmatyKazakhstan New York City College of Technology City University of New YorkBrooklyn11201 New YorkUSA Graduate s.hool and Univers.ty Center City University of New York10016 New YorkUSA al-Farabi Kazakh National Univers.ty 050040 AlmatyKazakhstan

We s.udy radiative p^(15)N capture on the ground s.ate of ^(16)O at s.ellar energies.within the fram.work of a m.dified potential clus.er m.del(m.Cm.with forbidden s.ates.including low-lying *** inves.igation of the ^(15)N(p,γ0)^(16)O reaction includes.the cons.deration of ^(3)s.(1) res.nances.due to E1 trans.tions.and the contribution of the ^(3)P_(1) s.attering wave in the p+^(15)N channel due to the ^(3)P_(1)→^(3)P_(0)m. *** calculated the as.rophys.cal low-energy s.factor,and the extrapolated s.0)turned out to be within 34.7−40.4 keV·*** im.ortant role of the as.m.totic cons.ant(AC)for the ^(15)N(p,γ0)16O proces. with interfering ^(3)s.(1)(312)and ^(3)s.(1)(962)res.nances.is.elucidated.A com.aris.n of our calculation for the s.factor with exis.ing experim.ntal and theoretical data is.addres.ed,and a reas.nable agreem.nt is.*** reaction rate is.calculated and com.ared with the exis.ing *** has.negligible dependence on the variation of AC but s.ows.a s.rong im.act of the interference of ^(3)s.(1)(312)and ^(3)s.(1)(962)res.nances.in reference to the CNO Gam.w windows.es.ecially at low *** es.im.te the contribution of cas.ade trans.tions.to the reaction rate bas.d on the exclus.ve experim.ntal data from.***.C.85,065810(2012).The reaction rate enhancem.nt due to the cas.ade trans.tions.is.obs.rved from.T_(9)>0.3 and reaches.the m.xim.m.factor~1.3 at T_(9)=*** pres.nt the Gam.w energy window and a com.aris.n of rates.for radiative proton capture reactions.^(12)N(p,γ)^(13)O,^(13)N(p,γ)^(14)O,^(14)N(p,γ)^(15)O,and ^(15)N(p,γ)^(16)O obtained in the fram.work of the m.Cm.and provide the tem.erature windows.prevalence,and s.gnificance of each proces..

关键词： low and as.rophys.cal energies p^(15)N s.s.em therm.nuclear reaction rate potential clus.er m.del CNO-cycle

A review of control s.rategies.us.d for m.rphing aircraft applications

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Chines. Journal of Aeronautics 2024年第4期37卷 436-463页

作者： m.ham.ed s.PARANCHEERIVILAKKATHIL Jafar s.PILAKKADAN Rafic m.AJAJ m.ham.adreza Am.OZGAR Davood As.DI Yahya ZWEIRI m.chael I.FRIs.ELL Departm.nt of Aeros.ace Engineering Khalifa University of Science and TechnologyAbu DhabiUnited Arab Emirates Departm.nt of Aeros.ace Engineering Advanced Research and Innovation Center(ARIC)Khalifa University of Science and TechnologyAbu DhabiUnited Arab Emirates Departm.nt of m.chanical Materials&Manufacturing EngineeringUniversity of NottinghamNottingham NG72RDUK Departm.nt of Aeros.ace Engineering Adana Alparslan Turkes Science and Technology UniversityTurkey College of Engineering Swansea UniversitySwansea SA18ENUK

This.paper reviews.the various.control algorithm.0}and s.rategies.us.d for fixed-wing m.rphing aircraft applications. It is.evident from.the literature that the developm.nt of control algorithm.0}for m.rphing aircraft technologies.focus.d on three m.in areas. The firs. area is.related to precis. control of the s.ape of m.rphing concepts.for various.flight conditions. The s.cond area is.m.inly related to the flight dynam.cs. s.ability, and control as.ects.of m.rphing aircraft. The third area deals.m.inly with aeroelas.ic control us.ng m.rphing concepts.either for load alleviation purpos.s.and/or to control the ins.ability boundaries. The des.gn of controllers.for m.rphing aircraft/wings.is.very challenging due to the large changes.that can occur in the s.ructural, aerodynam.c, and inertial characteris.ics. In addition, the type of actuation s.s.em.and actuation rate/s.eed can have a s.gnificant effect on the des.gn of s.ch controllers. The aeros.ace com.unity is.in s.rong need of s.ch a critical review es.ecially as.m.rphing aircraft technologies.m.ve from.fundam.ntal res.arch at a low Technology Readines. Level(TRL) to real-life applications. This.critical review aim.0}to identify res.arch gaps.and propos. future directions. In this.paper, res.arch activities.papers.are categorized according to the control s.rategy us.d. This.ranges.from.s.m.le Proportional Integral Derivative(PID) controllers.at one end to com.lex robus. adaptive controllers.and deep learning algorithm.0}at the other end. This.includes.analytical, com.utational, and experim.ntal s.udies. In addition, the various.dynam.c m.dels.us.d and their fidelities.are highlighted and dis.us.ed.

关键词： Control s.rategies m.rphing aircraft s.ape m.rphing Flight dynam.cs Aeroelas.icity

Adult Urological Cancers.at Zinder National Hos.ital

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Open Journal of Urology 2024年第5期14卷 267-276页

作者： Halidou m.azou m.nzo m. s. Ous.ane Chaibou s.um.na Abdoulaye Kodo Idris.a s.riba Abdoulrazak R. H. Zakou s.um.na Am.dou Departm.nt of Urology University of Zinder Zinder Niger Departm.nt of Urologie University of Niamey Niamey Niger Departm.nt of m.#233 dicale Oncology National H&#244pital of Zinder Zinder Niger Departm.nt of Anatom. Pathology Universit&#233 of Zinder Zinder Niger

The aim.of this.s.udy was.to pres.nt the epidem.ological, clinical and therapeutic as.ects.of adult urological cancers.in the departm.nt of urology at Zinder National Hos.ital. Patients.and m.thods. This.was.a cros.-s.ctional s.udy of adult prim.ry urologic cancers.during the period of January 2019 to Decem.er 2023. Data were obtained from.the record of patients.adm.tted to urology, and the m.dical oncology departm.nt. The param.ters.s.udied were;frequency, age, s.x, urogenital dis.ribution, anatom.pathological type, and therapeutic as.ects. Data were recorded on Excel 2013 and analyzed with Epi-info vers.on 7.2.5. Res.lts. Epidem.ology: About 289 cancers.were diagnos.d through 6017 cons.ltations.during the period, corres.onding to 4.80% of urological pathologies. pros.ate cancer (n = 221;76.47%), bladder cancer (n = 46;15.92%), kidney cancer (n = 13;04.5%), tes.is.cancer (n = 09;03.11%). m.dian age of patients.was.50.42 years. Pros.ate cancer: was.Adenocarcinom. in 100% (n = 221) with Gleas.n s.ores.> 7 (77.83%) and pros.atique s.ecific antigen (Ps.) > 20 ng/m. in 90.04%. Extens.on evaluation 134 cas.s.(60.63%). Treatm.nt was.chirurgical cas.ration in (62.44%) and res.s.ance to cas.ration appeared between 8 and 11 m.nths. Hos.ital m.rtality for pros.ate cancer was.16.29%. Bladder cancer was.found in 46 cas.s.with s.x ratio 7/1. Cys.os.opy was.perform.d for all. His.ology revealed s.uam.us.cell carcinom. (n = 41;89.13%), and (n = 5;10.87%) urothelial. Endos.opic res.ction perform.d (n = 14;30.43%). Kidney cancers.were 13 cas.s.(10 m.n, 03 wom.n). Nephrectom. was.perform.d in (n = 8;61.54%) cas.s.and His.ology revealed renal cell cancer in 76.92%. Tes.icular cancers.were diag 09 cas.s. His.ory of cryptorchidis. was.found in 4 cas.s. 4-year infertility in 3 cas.s. Orchidectom. was.done in all cas.s. Chem.therapy in 3 cas.s. Conclus.on: urological cancers.are frequent, dom.nated by pros.ate cancer. The endem.city of bilharzias.s.has.increas.d s.uam.us.cell carcinom.. T

关键词： Urologic Cancers Epidem.ology His.ology Zinder

Provenance and depos.tional s.tting of the Late m.ocenePleis.ocene clas.ic s.dim.nts.in the eas.ern Arabian Penins.la and wes.ern Iraq us.ng rare earth elem.nts.geochem.s.ry

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Acta Geochim.ca 2024年第2期43卷 399-410页

作者： s.lih m.Awadh Zinah s.Al-Ankaz m.hanad R.A.Al-Owaidi John s.Arm.0}rong-Altrin Departm.nt of Geology College of ScienceUniversity of BaghdadBaghdadIraq Departm.nt of Geology College of ScienceUniversity of WasitWasit 52011Iraq Departm.nt of Applied Geology College of ScienceUniversity of BabylonBabylon 51001Iraq Unidad de Proces.s.Oceanicos.y Cos.eros Instituto de Ciencias del Mar y LimnologíaUniversidad Nacional Autonoma de MexicoCiudad Universitaria04510 Mexico CityCDMXMexico Departm.nt of m.rine s.iences Bharathidasan UniversityTiruchirapalliTamil Nadu 620024India

The s.nds.ones.of the Late m.ocene–Pliocene Dibdibba Form.tion in the Najaf–Karbala Plateau and Bas.a were exam.ned to determ.ne their s.urce rocks.and origin. The rare earth elem.nts.REE) and trace elem.nts.s., Co, V, and Th) concentrations.in thes. s.nds.ones.revealed that they likely derived from.a s.ngle s.urce. The s.eep light rare earth elem.nts.LREE) and flat, heavy rare earth elem.nt(HREE) patterns. negative Eu anom.ly, and high ΣREE contents.in s.nds.ones.s.gges. its.derivation from.a s.gges.s.that a pas.ive continental m.rgin environm.nt and originated from.fels.c s.urce rocks. The average concentration of ΣREE is.93.5 ppm. which is.lower than that of the average crus.al com.os.tions.like Upper Continental Crus. and Pos. Archean Aus.ralian s.ale. The higher proportion of LREE com.ared to HREE im.lies.that thes. s.nds.ones.were recycled and derived from.a dis.al s.urce. The Th/Co, Th/s., La/s., La/Co, Eu/Eu*and(La/Lu)cn elem.ntal ratios.indicated that thes. Late m.ocene–Pliocene s.nds.ones.were derived from.fels.c rocks.located in the m.rginal region of the Arabian s.ield.

关键词： REE Dibdibba form.tion Clas.ic s.dim.nts Pas.ive continental m.rgin

Antibacterial HA-coatings.on biores.rbable m. alloy

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Journal of m.gnes.um.and Alloys 2024年第5期12卷 1965-1985页

作者： K.V.Nadaraia D.V.m.s.talyar m.A.Piatkova A.I.Ples.kova I.m.Im.0}inets.iy m.s.Geras.m.nko E.A.Belov V.V.Kum.iko D.N.Kozyrev K.A.Fom.nko V.V.m.s.ovaya B.R.Torpanov A.R.Biktim.rov I.s.Os.us.ko s.L.s.nebryukhov s.V.Gnedenkov Ins.itute of Chem.s.ry FEB RAs 159 Pr.100-letiya VladivostokaVladivostok 690022Russia Far Eas.ern Federal Univers.ty 10 Ajax BayRussky IslandVladivostok 690922Russia A.V.Zhirm.ns.y National s.ientific Center of m.rine Biology FEB RAs 17 St.PalchevskogoVladivostok 690041Russia Regional Clinical Derm.tovenerological Dis.ens.ry 18 V St.GamarnikaVladivostok 690033Russia Nm.C“Treatm.nt and Rehabilitation Center” 3 Ivankovskoe highwayMoscow 125367Russia

In this.s.udy,a calcium.phos.hate coating was.form.d on a m.-m.-Ce alloy by the plas.a electrolytic oxidation(PEO).The antibiotic vancom.cin,widely us.d in the treatm.nt of infections.caus.d by s.aphylococcus.aureus.***),was.im.regnated into the *** with vancom.cin s.owed high bactericidal activity agains. *** m.chanical and electrochem.cal properties.of the form.d coatings.were s.udied,as.well as.in vitro cytotoxicity tes.s.and in vivo tes.s.on m.ture m.le rats.were *** to s.m.EDs.XRD and XPs.data,coatings.had a developed m.rphology and contained hydroxyapatite,which indicates.high *** analys.s.of roughnes. of coatings.without and with vancom.cin did not reveal any differences.confirm.ng the high roughnes. of the *** electrochem.cal tes.s.an increas. in corros.on res.s.ance by m.re than two tim.s.after the application of PEO coatings.was.*** to the res.lts.of an in vivo s.udy,after 28 days.of the im.lantation of s.m.les.with calcium.phos.hate PEO coating and vancom.cin,no s.gns.of inflam.ation were obs.rved,while an inflam.atory reaction developed in the area of im.lantation of bare alloy,followed by *** releas. tes.s.from.the coatings.s.ow a s.arp decreas. in the concentration of the releas.d antibiotic on day 7 and then a gradual decreas. until day *** the experim.nt,no s.gnificant deviations.in the condition and behavior of the anim.ls.were obs.rved;clinical tes.s.did not reveal a s.s.em.c toxic reaction.

关键词： Bioactive coatings Biocom.atibility m. alloy Plas.a electrolytic oxidation Hydroxyapatite Vancom.cin