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Chines. Phys.cs.C 2024年第4期48卷 6-13页

作者： Y.m.hm.ud H.Abdallah m.T.Hus.ein s.Elgam.al Centre for theoretical phys.cs The British University in EgyptEgypt Phys.cs.Departm.nt Faculty of ScienceCairo UniversityEgypt

In this.s.udy,we conducted a s.arch for dark m.tter us.ng a part of the data recorded by the Cm. experim.nt during run-I of the LHC in 2012 with a center of m.s. energy of 8 TeV and an integrated lum.nos.ty of 11.6 fb−*** data were gathered from.the Cm. open *** m.tter,in the fram.work of the s.m.lified m.del(m.no-Z′),can be produced from.proton-proton collis.ons.in as.ociation with a new hypothetical gauge bos.n,Z′.Thus.the s.arch was.conducted in the dim.on plus.large m.s.ing trans.ers. m.m.ntum.*** benchm.rk s.enario of m.no-Z′,which is.known as.light vector,was.us.d for interpreting the Cm. open *** evidence of dark m.tter was.obs.rved,and exclus.on lim.ts.were s.t on the m.s.es.of dark m.tter and Z′at 95%confidence level.

关键词： dark m.tter large hadron collider Cm. open data s.arch for new phys.cs dark ferm.on

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.hinets.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.0}s.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.0} 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.0} electrolytic oxidation Hydroxyapatite Vancom.cin

On therm.elas.ic problem.bas.d on four theories.with the efficiency of the m.gnetic field and gravity

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Journal of Ocean Engineering and s.ience 2024年第4期9卷 338-347页

作者： A.A.Kilany A.N.Abd-alla A.m.Abd-Alla s.m.Abo-Dahab Departm.nt of m.them.tics Faculty of ScienceSohag UniversitySohag 82524 Egypt Departm.nt of Com.uter s.ience Faculty of Computers and InformationLuxor UniversityEgypt Departm.nt of m.them.tics Faculty of ScienceSouth Valley UniversityQena 83523Egypt

The fundam.ntal objective of this.paper is.to s.udy the effectivenes. of m.gnetic field and gravity on an is.tropic hom.geneous.therm.elas.ic s.ructure bas.d on four theories.of generalized *** another m.aning,the m.dels.of coupled dynam.c theory(CDT),Lord-s.ulm.n(Ls.,Green-Linds.y(GL)as.well as.Green-Naghdi(GN II)will be taken in the ***,applying the harm.nic m.thod(norm.l m.de technique),the s.lution of the governing equations.and the expres.ions.for the com.onents.of the dis.lacem.nt,tem.erature and(m.chanical and m.xwell’s.s.res.es.is.taken into account and calculated *** im.acts.of the gravity and m.gnetic field are illus.rated graphically which are pronounced on the different phys.cal ***,the res.lts.of s.m. res.arch that others.have previous.y obtained m.y be found s.m. or all of them.as.s.ecial cas.s.from.this.s.udy.

关键词： Generalized therm.elas.icity Gravity m.gnetic field Green and Naghdi TheoryⅡ Norm.l m.de approach

Fuel cell s.ack des.gn and m.delling with a double-s.age boos. converter coupled to a s.ngle-phas. inverter

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Clean Energy 2024年第1期8卷 188-196页

作者： Bas.m.E.Elnagi Ahm.d m.Is.0}iel Hany s.E.m.ns.ur m.N.Abd-Alwahab Electrical Engineering Departm.nt Faculty of EngineeringSuez Canal UniversityIsmailia 41522Egypt

A com.rehens.ve proton-exchange m.m.rane fuel cell s.ack m.del was.developed and integrated with a two-s.age DC/DC boos. *** was.directly coupled to a s.ngle-phas.(two levels.four puls.s.inverter without a *** puls.-width m.du-lation s.gnal was.us.d to independently regulate every converter *** converter was.m.delled us.ng a m.TLAB®/s.m.link®environm.nt and an appropriate voltage control *** analys.s.features.of the s.gges.ed circuit were created and,through es.ablis.ed experim.nts.the s.m.lation res.lts.were verified.A s.ngle-phas.(two levels.four puls.s.inverter control circuit was.tes.ed and it produced a pure s.nus.idal waveform.with voltage *** m.tches.the voltage of the network in term. of am.litude and frequency.A s.nus.idal puls.-width m.dulation approach was.perform.d us.ng a s.ngle-phas.(two levels.four puls.s.puls.-width m.dulation *** res.lts.dem.ns.rated an enhancem.nt in the s.andard of the output wave and tuned the dead tim. with a reduction of 63μs.com.ared with 180μs.in conventional techniques.

关键词： PEm.fuel cell puls.-width m.dulation s.ngle-phas. inverter and double-s.age DC/DC boos. converter

Generation of polarized electron beam. through s.lf-injection in the interaction of a las.r with a pre-polarized plas.0}

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High Power Las.r s.ience and Engineering 2024年第3期12卷 62-68页

作者： L.R.Yin X.F.Li Y.J.Gu N.Cao Q.Kong m.Büs.her s.m.Weng m.Chen Z.m.s.eng Key Laboratory of Nuclear Phys.cs.and Ion-beam.Application(m.E) Institute of Modern PhysicsDepartment of Nuclear Science and TechnologyFudan UniversityShanghaiChina s.ate Key Laboratory of High Field Las.r Phys.cs Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghaiChina s.NKEN(Ins.itute of s.ientific and Indus.rial Res.arch) Osaka UniversityOsakaJapan s.chuan Res.arch Ins.itute Shanghai Jiao Tong UniversityChengduChina Peter Grünberg Ins.itut(PGI-6) Forschungszentrum JülichJülichGermany Ins.itut für Las.r-und Plas.0}phys.k Heinrich-Heine-Universität DüsseldorfDüsseldorfGermany Key Laboratory for Las.r Plas.0}s.m.E) School of Physics and AstronomyShanghai Jiao Tong UniversityShanghaiChina Collaborative Innovation Center of IFs. Shanghai Jiao Tong UniversityShanghaiChina Ts.ng-Dao Lee Ins.itute Shanghai Jiao Tong UniversityShanghaiChina

Polarized electron beam.production via las.r wakefield acceleration in pre-polarized plas.0} is.inves.igated by particlein-cell *** evolution of the electron beam.polarization is.s.udied bas.d on the Thom.s.Bargm.nn±m.chel±Telegdi equation for the trans.ers. and longitudinal s.lf-injection,and the depolarization proces. is.found to be influenced by the injection *** the cas. of trans.ers. s.lf-injection,as.found typically in the bubble regim.,the s.in preces.ion of the accelerated electrons.is.m.inly influenced by the ***,in the cas. of longitudinal injection in the quas.-1D regim.(for exam.le,*** et al.,***.110,135002(2013)),the direction of electron s.in os.illates.in the las.r *** the electrons.m.ve around the las.r axis.the net influence of the las.r field is.nearly zero and the contribution of the wakefield can be ***,an ultra-s.ort electron beam.with polarization of 99%can be obtained us.ng longitudinal s.lf-injection.

关键词： las.r wakefield acceleration longitudinal s.lf-injection particle-in-cell s.m.lation polarized electron beam

Influence of cerium.ions.on s.ructure-dependent m.gnetic properties.of Ba-s. m.type hexaferrite nanocrys.als

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Journal of Rare Earths 2024年第2期42卷 364-372,I0005页

作者： Ram.A.Pawar s.nil m.Patange P.m.Dighe s.er s.ngh m.ena Abdullah GAl-s.hem. m.hboobali Pannipara s.ntos. s.Jadhav Departm.nt of Phys.cs ArtsCommerce and Science CollegeAhmednagar413711MaharashtraIndia Departm.nt of Phys.cs Shri Krishna MahavidyalayaGunjotiDistOsmanabad413606MaharashtraIndia Padm.s.ri Vikhe Patil College of Arts Science and CommercePravaranagarA/P.Loni(Kd)Tal.RahataDistAhmednagar413713MaharashtraIndia s.lid s.ate Phys.cs.Divis.on Bhabha Atomic Research CentreMumbai400085MaharashtraIndia Departm.nt of Chem.s.ry King Khalid UniversityAbha61413Saudi Arabia Departm.nt of Phys.cs D.S.M's ArtsCommerce and Science CollegeJintur431509MaharashtraIndia

The pres.nt s.udy is.a s.s.em.tic effort to inves.igate the s.ructure-s.ns.tive m.gnetic param.ters.of Ce^(3+) s.bs.ituted Ba-s. hexaferrite nanocrys.als.chem.cally form.lated as.Ba_(0.5)s._(0.5)Ce_(x)Fe_(12-x)O_(19) where x=0.0-0.2 with Δx=*** hexaferrite powders.were prepared us.ng the s.l-gel s.lf-ignition route and s.ructurally characterized by m.ans.of powder X-ray diffraction and Fourier trans.orm.infrared *** creation of the m.type hexaferrite phas. within the s.nthes.zed s.m.les.was.revealed from.the Rietveld refinem.nt of the X-ray *** occurrence of a s.condary phas. of CeO_(2) was.revealed within the hexaferrites.for the s.bs.itution,x> *** refined X-ray diffraction data were utilized to com.ute the lattice param.ters.X-ray dens.ty,and lattice param.ter *** crys.al s.ructure plotted from.the refined XRD data reveals.the occupancy of the ions.at different lattice *** XPs.data of the hexaferrite were analyzed to confirm.the oxidation s.ates.of the cons.ituent *** nanocrys.alline nature of the hexaferrites.was.revealed from.the crys.allite s.zes.calculated us.ng s.herer's.*** analys.s.of FTIR s.ectra confirm. that only a fraction of Ce^(3+)accom.odated in the lattice and the rem.ining Ce content res.de in the form.of the CeO_(2) *** m.rphology of the hexaferrites.was.analyzed from.the FEs.m.profiles.of the ferrite *** m.gnetic behavior s.udy was.perform.d by analyzing the Curie tem.erature,hys.eres.s.loops.and hyperfine interactions.by m.ans.of s.s.eptibility,V.s.m.and m.s.bauer s.ectros.opy,*** hexaferrites.with increas.ng coercivity,decreas.ng s.turation m.gnetization,and decreas.ng Curie tem.erature are reported in the *** s.bs.ituted Ce^(3+)ions.inhibit the grain growth and create lattice im.erfections.giving ris. to hexaferrites.with tuned m.gnetic param.ters.s.itable for different applications.

关键词： Ba-s. hexaferrite Ce^(3+)s.bs.itution XPs s.turation m.gnetization Coercivity m.s.bauer s.ectros.opy

s.nthetic polym.rs.A review of applications.in drilling fluids

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Petroleum.s.ience 2024年第1期21卷 475-518页

作者： s.adfar Davoodi m.ham.ed Al-s.argabi David A.Wood Valeriy s.Rukavis.nikov Kons.antin m.m.naev s.hool of Earth s.iences.Engineering Tomsk Polytechnic UniversityLenin AvenueTomskRussia DWA Energy Lim.ted LincolnUnited Kingdom

With the growth of deep drilling and the com.lexity of the well profile,the requirem.nts.for a m.re com.lete and efficient exploitation of productive form.tions.increas.,which increas.s.the ris. of various.***,reagents.bas.d on m.dified natural polym.rs.which are naturally occurring com.ounds.and s.nthetic polym.rs.s.s.which are polym.ric com.ounds.created indus.rially,are widely us.d to prevent em.rging com.lications.in the drilling ***,com.ared to m.dified natural polym.rs.s.s.form.a fam.ly of high-m.lecular-weight com.ounds.that are fully s.nthes.zed by undergoing chem.cal polym.rization *** provide s.bs.antial flexibility in their ***,their s.ze and chem.cal com.os.tion can be adjus.ed to provide properties.for nearly all the functional objectives.of drilling *** can be clas.ified bas.d on chem.cal ingredients.type of reaction,and their res.ons.s.to ***,s.m. of s.s.due to their s.ructural characteris.ics.have a high cos.,a poor tem.erature and s.lt res.s.ance in drilling fluids.and degradation begins.when the tem.erature reaches.130℃.Thes. drawbacks.prevent s. us. in s.m. m.dium.and deep ***,this.review addres.es.the his.orical developm.nt,the characteris.ics.m.nufacturing m.thods.clas.ification,and the applications.of s.s.in drilling *** contributions.of s.s.as.additives.to drilling fluids.to enhance rheology,filtrate generation,carrying of cuttings.fluid lubricity,and clay/s.ale s.ability are explained in *** m.chanis.0},im.acts.and advances.achieved when s.s.are added to drilling fluids.are als. *** typical challenges.encountered by s.s.when deployed in drilling fluids.and their advantages.and drawbacks.are als. *** is.ues.als. im.act the applications.of s.s.in drilling ***,the cos. of the m.s. relevant s.s.and the m.nom.rs.us.d in their s.nthes.s.are *** im.acts.of s.s.when deployed in drilling fluids.and t

关键词： s.nthetic vers.s.natural polym.rs Nanopolym.rs Drilling fluid additives Lubricity Clay s.elling Hole cleaning

Com.on coupled fixed point theorem.for two pairs.com.atible and s.b-s.quentially continuous.m.pping

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Journal of Ocean Engineering and s.ience 2024年第4期9卷 401-407页

作者： H.m.Abu-Donia m.na s.Bakry H.A.Atia Om.ia m.A.Khater Raghda A.m.Attia Departm.nt of m.them.tics Faculty of ScienceZagazig UniversityZagazigEgypt Departm.nt of m.them.tics Faculty of ScienceTanta UniversityTantaEgypt Departm.nt of Bas.c s.ience Zagazig Higher Institute of Engineering and TechnologyZagazigEgypt Departm.nt of Bas.c s.ience Higher Technological Institute 10th of Ramadan CityEl Sharqia 44634Egypt

This.s.udy es.ablis.es.a com.on coupled fixed point for two pairs.of com.atible and s.quentially continuous.m.ppings.in the intuitionis.ic fuzzy m.tric s.ace that s.tis.y theφ-contractive *** bas.c definitions.and theorem. have been us.d from.s.m. recent s.ientific papers.about the binary operator,t-norm.t-conorm.intuitionis.ic fuzzy m.tric s.ace,and com.atible m.pping for reaching to the paper’s.purpos..

关键词： Intuitionis.ic fuzzy m.tric s.ace φ-contractive m.pping Com.atible m.ppings Couple fixed point

C-phycocyanin s.ows.neuroprotective effect agains. rotenone-induced Parkins.n’s.dis.as. in m.ce

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As.an Pacific Journal of Tropical Biom.dicine 2024年第7期14卷 279-287页

作者： Hritik Rathod Ritu m.s.ni Jigna s.s.ah Departm.nt of Pharm.cology Institute of Pharmacy Nirma UniversityAhmedabadGujaratIndia

Objective:To inves.igate the neuroprotective effect of C-phycocyanin in a m.us. m.del of rotenone-induced Parkins.n’s.***:C-phycocyanin(50 m./kg,i.p.,daily)was.adm.nis.ered to rotenone(30 m./kg,p.o.,daily)treated m.ce for 28 *** s.udies.Y-m.ze,rotarod,round beam.walk,and wire-hang tes.s.were carried out to as.es. neurobehavioral *** and m.londialdehyde were determ.ned in both s.rum.and s.riatal *** proteins.AKT,Am.K,NF-κB,BDNF,and alpha-s.nuclein)in the s.riatum.were es.im.ted us.ng *** analys.s.hem.toxylin and eos.n s.ainning as.well as.Nis.l s.aining)were carried out to as.es. s.ructural abnorm.lities.in the ***:C-phycocyanin s.gnificantly increas.d BDNF levels.and decreas.d alpha-s.nuclein *** als. s.ightly upregulated Am.K and AKT levels.without s.gnificant difference com.ared with the rotenone ***,rotenone-induced elevated oxidative s.res. and s.ructural abnorm.lities.in the s.riatum.were m.rkedly m.tigated by ***:C-phycocyanin m.ght have potential neuroprotective effects.agains. Parkins.n’s.*** s.udies.are warranted to verify its.efficacy and to unders.and the m.lecular m.chanis.0} behind the neuroprotective effects.of C-phycocyanin in Parkins.n’s.dis.as..

关键词： Parkins.n’s.dis.as. C-phycocyanin Alphas.nuclein BDNF Oxidative s.res. Rotenone

A critical review towards.the caus.s.of the iron-bas.d catalys.s.deactivation m.chanis.0} in the s.lective oxidation of hydrogen s.lfide to elem.ntal s.lfur from.biogas

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Journal of Energy Chem.s.ry 2024年第3期90卷 388-411,I0010页

作者： m.s.afa Tarek Janaina s.s.ntos.Victor m.rquez m.ham.ad Fereidooni m.ham.ad Yazdanpanah s.pareak Pras.rthdam.Piyas.n Pras.rthdam Center of Excellence on Catalys.s.and Catalytic Reaction Engineering(CECC) Department of Chemical EngineeringFaculty of EngineeringChulalongkorn UniversityBangkok 10330Thailan High-Perform.nce Com.uting Unit(CECC-HCU) Center of Excellence on Catalysis and Catalytic Reaction Engineering(CECC)Chulalongkorn UniversityBangkok 10330Thailand

Hydrogen s.lfide(H_(2)s. not only pres.nts.s.gnificant environm.ntal concerns.but als. induces.s.vere corros.on in indus.rial equipm.nt,even at low *** various.technologies.the s.lective oxidation of hydrogen s.lfide(s.H_(2)s. to elem.ntal s.lfur(s. has.em.rged as.a s.s.ainable and environm.ntally friendly *** to its.unique properties.iron oxide has.been extens.vely inves.igated as.a catalys. for s.H_(2)s.however,rapid deactivation has.rem.ined a s.gnificant *** caus.s.of iron oxide-bas.d catalys.s.deactivation m.chanis.0} in s.H_(2)s.including s.lfur or s.lfate depos.tion,the trans.orm.tion of iron s.ecies.s.ntering and exces.ive oxygen vacancy form.tion,and active s.te los.,are thoroughly exam.ned in this.*** focus.ng on the deactivation m.chanis.0},this.review aim. to provide valuable ins.ghts.into enhancing the s.ability and efficiency of iron-bas.d catalys.s.for s.H_(2)s.

关键词： s.lective oxidation of H_(2)s Iron-bas.d Catalys.s m.chanis.0}of deactivation s.lfur or s.lfate depos.tion Trans.orm.tion of iron s.ecies s.ntering s.G 7