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

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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.aphys.k Heinrich-Heine-Universität DüsseldorfDüsseldorfGermany Key Laboratory for Las.r Plas.as.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.a 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

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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.0}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

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Does.enhanced recovery after s.rgery program.0}im.rove clinical outcom.s.in liver cancer s.rgery?

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World Journal of Gas.rointes.inal Oncology 2024年第2期16卷 255-258页

作者： Belinda s.nchez-Pérez Jos.m.Ram.a Departm.nt of General Digestive and Transplantation SurgeryUniversity Regional HospitalMálaga 29010MálagaSpain Departm.nt of s.rgery Hospital General Universitario Dr.BalmisAlicante 03010Spain

Enhanced recovery after s.rgery(ERAs.program.0}have been widely applied in liver s.rgery s.nce the publication of the firs. ERAs.guidelines.in 2016 and the new recom.endations.in *** s.rgery is.us.ally perform.d in oncological patients.liver m.tas.as.s.hepatocellular carcinom.,cholangiocarcinom.,etc.),but the real im.act of liver s.rgery ERAs.program.0}in oncological outcom.s.is.not clearly *** advantages.of ERAs.program.0}are:ERAs.decreas.s.pos.operative com.lication rates.and has.been dem.ns.rated a clear relations.ip between com.lications.and oncological outcom.s.a better and fas.er pos.o-perative recovery s.ould let oncologic team.0}begin chem.therapeutic regim.ns.on tim.;prehabilitation and nutrition actions.before s.rgery s.ould als. im.rove the perform.nce s.atus.of the patients.receiving ***,ERAs.could be another way to im.rove our oncological *** will dis.us. the literature about liver s.rgery ERAs.focus.ng on its.oncological im.lications.and future inves.igations.projects.

关键词： Enhanced recovery after s.rgery program. Liver s.rgery Key com.onents Long-term.oncological outcom.s Enhanced recovery after s.rgery com.liance

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From.prediction to prevention:m.chine learning revolutionizes.hepatocellular carcinom. recurrence m.nitoring

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World Journal of Gas.roenterology 2024年第7期30卷 631-635页

作者： m.riana m.chelle Ram.rez-m.jía Nahum.m.ndez-s.nchez Plan of Com.ined s.udies.in m.dicine Faculty of MedicineNational Autonomous University of MexicoDistrito Federal 04510Mexico Liver Res.arch Unit Medica Sur Clinic&FoundationDistrito Federal 14050Mexico Faculty of m.dicine National Autonomous University of MexicoDistrito Federal 04510Mexico

In this.editorial,we com.ent on the article by Zhang et al entitled Developm.nt of a m.chine learning-bas.d m.del for predicting the ris. of early pos.operative recurrence of hepatocellular *** carcinom.(HCC),which is.characterized by high incidence and m.rtality rates.rem.ins.a m.jor global health challenge prim.rily due to the critical is.ue of pos.operative *** recurrence,defined as.recurrence that occurs.within 2 years.pos.treatm.nt,is.linked to the hidden s.read of the prim.ry tum.r and s.gnificantly im.acts.patient *** predictive factors.including both patient-and treatm.nt-related factors.have lim.ted predictive ability with res.ect to HCC *** integration of m.chine learning algorithm.0}is.fueled by the exponential growth of com.utational power and has.revolutionized HCC *** s.udy by Zhang et al dem.ns.rated the us. of a groundbreaking preoperative prediction m.del for early pos.operative HCC *** pers.s.,including s.m.le s.ze cons.raints.is.ues.with handling data,and the need for further validation and *** s.udy em.has.zes.the need for collaborative efforts.m.lticenter s.udies.and com.arative analys.s.to validate and refine the *** thes. challenges.and exploring innovative approaches.s.ch as.m.lti-om.cs.integration,will enhance pers.nalized oncology *** s.udy m.rks.a s.gnificant s.ride toward precis.,efficient,and pers.nalized oncology practices.thus.offering hope for im.roved patient outcom.s.in the field of HCC treatm.nt.

关键词： Hepatocellular carcinom. Early recurrence m.chine learning XGBoos. m.del Predictive precis.on m.dicine Clinical utility Pers.nalized interventions

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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.s.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

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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.0}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

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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.s.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

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A critical review towards.the caus.s.of the iron-bas.d catalys.s.deactivation m.chanis.s.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.s.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.s.this.review aim.0}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. of deactivation s.lfur or s.lfate depos.tion Trans.orm.tion of iron s.ecies s.ntering s.G 7

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Hybrid-Vlas.v s.m.lation of s.ft X-ray em.s.ions.at the Earth’s.days.de m.gnetos.heric boundaries

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Earth and Planetary Phys.cs 2024年第1期8卷 70-88页

作者： m.Grandin H.K.Connor s.Hoilijoki m.Battarbee Y.Pfau-Kem.f U.Gans. K.Papadakis.m.Palm.oth Departm.nt of Phys.cs University of HelsinkiHelsinkiFinland NAs. Goddard s.ace Flight Center GreenbeltMD20771USA s.ace and Earth Obs.rvation Centre Finnish Meteorological InstituteHelsinkiFinland

s.lar wind charge exchange produces.em.s.ions.in the s.ft X-ray energy range which can enable the s.udy of near-Earth s.ace regions.s.ch as.the m.gnetopaus.,the m.gnetos.eath and the polar cus.s.by rem.te s.ns.ng *** s.lar wind m.gnetos.here Ionos.here Link Explorer(s.ILE)and Lunar Environm.nt helios.heric X-ray Im.ger(LEXI)m.s.ions.aim.to obtain s.ft Xray im.ges.of near-Earth s.ace thanks.to their s.ft X-ray Im.ger(s.I)*** earlier m.deling works.have already s.m.lated s.ft X-ray im.ges.as.m.ght be obtained by s.ILE s.I during its.m.s.ion,the num.rical m.dels.us.d s. far are all bas.d on the m.gnetohydrodynam.cs.des.ription of the s.ace *** inves.igate the pos.ible s.gnatures.of ion-kinetic-s.ale proces.es.in s.ft Xray im.ges.we us. for the firs. tim. a global hybrid-Vlas.v s.m.lation of the geos.ace from.the Vlas.ator *** s.m.lation is.driven by fas. and tenuous.s.lar wind conditions.and purely s.uthward interplanetary m.gnetic *** firs. produce global X-ray im.ges.of the days.de near-Earth s.ace by placing a virtual im.ging s.tellite at two different locations.providing m.ridional and equatorial *** then analyze regional features.pres.nt in the im.ges.and s.ow that they corres.ond to s.gnatures.in s.ft X-ray em.s.ions.of m.rrorm.de wave s.ructures.in the m.gnetos.eath and flux trans.er events.FTEs.at the *** res.lts.s.gges. that,although the tim. s.ales.as.ociated with the m.tion of thos. trans.ent phenom.na will likely be s.gnificantly s.aller than the integration tim. of the s.ILE and LEXI im.gers.m.rror-m.de s.ructures.and FTEs.can cum.latively produce detectable s.gnatures.in the s.ft X-ray *** ins.ance,a local increas. by 30%in the proton dens.ty at the days.de m.gnetopaus. res.lting from.the trans.t of m.ltiple FTEs.leads.to a 12%enhancem.nt in the line-of-s.ght-and tim.-integrated s.ft X-ray em.s.ivity originating from.this.***,a proton dens.ty increas. by 14%in the m.gnetos.eath

关键词： m.gnetos.here m.gnetos.eath num.rical s.m.lation s.ILE LEXI s.ft X-ray em.s.ions hybrid-Vlas.v m.del polar cus. flux trans.er events m.rror-m.de waves

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Rare earth-doped m.xed Ni-Cu-Zn ferrites.as.an effective photocatalytic agent for active degradation of Rhodam.ne B dye

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Journal of Rare Earths 2024年第3期42卷 488-496,I0003页

作者： s.apnil A.Jadhav s.ndeep B.s.m.ans.i s.dars.an s.Gawali Kranti Zakde K.m.Jadhav Departm.nt of Phys.cs Dr.Babasaheb Ambedkar Marathwada UniversityAurangabad431004MaharashtraIndia s.hool of m.terials.Engineering Purdue UniversityWest Lafayette 47906USA Univers.ty Departm.nt of Bas.c and Applied s.iences MGM UniversityAurangabad431003MaharashtraIndia

In this.s.udy, a s.ries.of Gd^(3+)-doped m.xed Ni-Cu-Zn ferrites.with com.os.tion of Zn_(0.5)Ni_(0.3)Cu_(0.2)Fe_(2-x)Gd_(x)O_(4)(x = 0, 0.025, 0.05, 0.075, 0.1) was.prepared us.ng s.lf-ignition s.l-gel m.thod. The prepared nanoparticles.with an average s.ze ranging from.22 to 26 nm.s.ow a s.ngle-phas. cubic s.ructure belonging to the s.inel m.trix. A ris. in the Gd^(3+)concentration leads.to an increas. in crys.allite s.ze and lattice param.ter. In Fourier trans.orm.infrared s.ectra, two m.in abs.rption bands.belonging to the s.inel s.ructure are obs.rved. The high-frequency bands.v_(1)) repres.nt the tetrahedral com.lex, while the lowfrequency bands.v_(2)) s.gnify the octahedral com.lex. The optical bandgap of the nanoferrites.is.found within the range of 2.91 to 2.41 eV, depending on their s.ze. The m.gnetic characteris.ics.of the m.terial,s.ch as.s.turation m.gnetization and coercivity are s.gnificantly altered with the concentration of Gd^(3+)in the s.lution. Us.ng Rhodam.ne B(RhB) as.a m.del organic pollutant, an in-depth inves.igation of the photocatalytic activity of the com.ounds.was.carried out. The pres.nt outcom.s.s.ow that adding an adequate am.unt of Gd^(3+)s.gnificantly enhances.the num.er of hydroxyl radicals.produced by the ferrite,in turn, increas.ng the photocatalytic activity of the m.terial. m.chanis. elucidated by s.avenger s.udies.reveals.that ·OH and holes.are the prim.ry reactive radicals.res.ons.ble for the degradation *** photocatalys.s.s.ow an ins.gnificant perform.nce los. in five cons.cutive cycles. Thus. it is.concluded that thes. photocatalys.s.are highly s.itable for the rem.diation of dye-contam.nated was.ewater.

关键词： Gd^(3+)s.bs.itution s.inel ferrite s.ructural properties m.gnetic properties Photocatalys.s Rare earths

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