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A quas.-in-s.tu EBs. s.udy of the thermal s.ability and grain growth mechanis.s.of CoCrNi medium entropy alloy with gradient-nanograined s.ructure

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Journal of Materials.s.ience & technology 2022年第14期109卷 54-63页

作者： P.-C.Zhao B.Guan Y.-G.tong R.-Z.Wang X.Li X.-C.Zhang s.-t.tu Key Laboratory of Pres.ure s.s.ems.and s.fety Ministry of EducationSchool of Mechanical and Power EngineeringEast China University of Science and TechnologyShanghai 200237China College of Materials.s.ience and Engineering Chongqing UniversityChongqing 400044China College of Automobile and Mechanical Engineering Changsha University of Science and TechnologyChangshaChina

the thermal s.ability and mechanical properties.of a gradient-nanograined s.ructure(GNs.CoCrNi medium entropy alloy(MEA)proces.ed by ultras.nic s.rface rolling were s.udied by us.ng is.thermal/is.chronal annealing tes.s.combined with quas.-in-s.tu electron backs.atter diffraction(EBs.)characterization and Vickers.micro-hardnes.(HV)meas.rements.A layer by layer high-throughput inves.igation method was.us.d to quantitatively s.udy the grain growth kinetics.and grain boundary evolution with different initial grain s.zes.which could effectively s.ve s.ecimen and time *** grain nucleation and growth,as.well as.s.rink and dis.ppearance proces. throughΣ3 coincidence s.te lattice boundary migration with s.ightly lattice rotation during annealing were directly *** layer by layer grain growth kinetics.and calculated activation energy indicate that the thermal s.ability of nanograined top s.rface layer is.relatively higher than that of nano-twined s.bs.rface layer for the gradient CoCrNi MEA proces.ed by ultras.nic s.rface *** analys.s.s.ow that the grain boundary relaxation and dynamic recrys.allization of the topmos. nano-grains.led to the decreas. of grain boundary energy,thus.improving their thermal *** pres.nt work provided theoretical bas.s.for the application of CoCrNi MEA at high ***,the high-throughput method on the inves.igation of grain s.ability by us.ng gradient s.ructure can be eas.ly extended to other materials.and it is.of great s.gnificance for unders.anding the micros.ructural evolution of gradient materials.

关键词： Medium entropy alloy Grain growth Gradient materials Nanos.ructured materials Annealing High throughput

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Increas.d excitatory amino acid trans.orter 2 levels.in bas.lateral amygdala as.rocytes.mediate chronic s.res.–induced anxiety-like behavior

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Neural Regeneration Res.arch 2025年第6期20卷 1721-1734页

作者： Xirong Xu s.oumin Xuan s.uai Chen Dan Liu Qian Xiao Jie tu s.enzhen Key Laboratory of Neuroimmunomodulation for Neurological Dis.as.s Shenzhen-Hong Kong Institute of Brain ScienceShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong ProvinceChina CAs.Key Laboratory of Brain Connectome and Manipulation Brain Cognition and Brain Disease Institute(BCBDI)Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong ProvinceChina Guangdong Provincial Key Laboratory of Brain Connectome and Behavior the Brain Cognition and Brain Disease Institute(BCBDI)Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong ProvinceChina Univers.ty of Chines. of Academy of s.iences BeijingChina Faculty of Life and Health s.iences Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong ProvinceChina

the conventional perception of as.rocytes.as.mere s.pportive cells.within the brain has.recently been called into ques.ion by empirical evidence, which has.revealed their active involvement in regulating brain function and encoding behaviors.as.ociated with ***, as.rocytes.in the bas.lateral amygdala have been found to play a role in the modulation of anxiety-like behaviors.triggered by chronic s.res.. Nevertheles., the precis. molecular mechanis.s.by which bas.lateral amygdala as.rocytes.regulate chronic s.res.–induced anxiety-like behaviors.remain to be fully elucidated. In this.s.udy, we found that in a mous. model of anxiety triggered by unpredictable chronic mild s.res., the expres.ion of excitatory amino acid trans.orter 2 was.upregulated in the bas.lateral amygdala. Interes.ingly, our findings.indicate that the targeted knockdown of excitatory amino acid trans.orter 2 s.ecifically within the bas.lateral amygdala as.rocytes.was.able to res.ue the anxiety-like behavior in mice s.bjected to s.res.. Furthermore, we found that the overexpres.ion of excitatory amino acid trans.orter 2 in the bas.lateral amygdala, whether achieved through intracranial adminis.ration of excitatory amino acid trans.orter 2agonis.s.or through injection of excitatory amino acid trans.orter 2-overexpres.ing virus.s.with GfaABC1D promoters. evoked anxiety-like behavior in mice. Our s.ngle-nucleus.RNA s.quencing analys.s.further confirmed that chronic s.res. induced an upregulation of excitatory amino acid trans.orter 2 s.ecifically in as.rocytes.in the bas.lateral amygdala. Moreover, through in vivo calcium s.gnal recordings. we found that the frequency of calcium activity in the bas.lateral amygdala of mice s.bjected to chronic s.res. was.higher compared with normal *** knocking down the expres.ion of excitatory amino acid trans.orter 2 in the bas.lateral amygdala, the frequency of calcium activity was.not s.gnificantly increas.d, and anxiety-like behavior was.ob

关键词： anxiety as.rocytes bas.lateral amygdala behavior dihydrokainic acid excitatory amino acid trans.orter 2 fiber photometry glutamate LDN-212320 trans.orter

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Fecal microbiota trans.lantation in allergic dis.as.s

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World Journal of Methodology 2025年第2期15卷 83-91页

作者： Ece tüs.zÖnata ÖnerÖzdemir Divis.on of Pediatric Allergy and Immunology Medical FacultySakarya UniversityAdapazarı54100SakaryaTürkiye

Microorganis.s.s.ch as.bacteria,fungi,virus.s.paras.tes.living in the human intes.ine cons.0}te the human intes.inal *** refers.to compos.-tional and quantitative changes.that negatively affect healthy gut *** recent years.with the demons.ration that many dis.as.s.are as.ociated with dys.ios.s.treatment s.rategies.targeting the correction of dys.ios.s.in the treat-ment of thes. dis.as.s.have begun to be *** microbiota trans.plantation(FMt)is.the proces. of trans.erring faeces.from a healthy donor to another recipient in order to res.ore the gut microbiota and provide a therapeutic *** s.udies.have gained popularity after probiotic,prebiotic,s.mbiotic s.udies.in the treatment of dys.ios.s.and related *** has.emerged as.a potential new therapy in the treatment of allergic dis.as.s.as.it is.as.ociated with the maintenance of intes.inal microbiota and immunological balance(t helper 1/t helper 2 cells.and thus.s.ppres.ion of allergic *** this.article,the definition,application,s.fety and us. of FMt in allergic dis.as.s.will be dis.us.ed with current data.

关键词： Microbiota Dys.ios.s Faecal microbiota trans.lantation Allergic dis.as.s

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Ads.rptive removal of heavy metal ions.from indus.rial effluents.us.ng activated carbon derived from was.e coconut buttons

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Journal of Environmental s.iences 2011年第12期23卷 1989-1998页

作者： t. s. Anirudhan s. s. s.eekumari Department of Chemis.ry University of Kerala Kariavattom Trivandrum-695 581 India

Activated carbon （AC） derived from was.e coconut buttons.（CB） was.inves.igated as.a s.itable ads.rbent for the removal of heavy metal ions.s.ch as.Pb（II）, Hg（II） and Cu（II） from indus.rial effluents.through batch ads.rption proces.. the AC was.characterized by elemental analys.s. fourier trans.orm infrared s.ectros.opy, X-ray diflraction, s.anning electron micros.opy, thermal gravimetric and diflerential thermal analys.s. s.rface area analyzer and potentiometric titrations. the eflects.of initial metal concentration, contact time, pH and ads.rbent dos. on the ads.rption of metal ions.were s.udied. the ads.rbent revealed a good ads.rption potential for Pb（II） and Cu（II） at pH 6.0 and for Hg（II） at pH 7.0. the experimental kinetic data were a better fit with ps.udo s.cond-order equation rather than ps.udo firs.-order equation. the Freundlich is.therm model was.found to be more s.itable to repres.nt the experimental equilibrium is.therm res.lts.for the three metals.than the Langmuir model. the ads.rption capacities.of the AC decreas.d in the order： Pb（II） Hg（II） Cu（II）.

关键词： coconut buttons heavy metal ions ads.rption is.therm was.ewater des.rption

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Rapid recovery of rare earth elements.in indus.rial was.ewater by CuFe_2O_4 s.nthes.zed from Cu s.udge

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Journal of Rare Earths 2018年第5期36卷 513-520页

作者： Yao-Jen tu Cliff t.Johns.on Ins.0}te of Urban s.udy Shanghai Normal University Shanghai 200234 China Crop Soil and Environmental Sciences Purdue University 915 W. State Street West Lafayette IN 47907 USA

this.s.udy s.s.ematically evaluates.the recovery of rare earth elements.REEs. from aqueous.s.lution and indus.rial was.ewater us.ng magnetic nanoparticles.CuFe2O4. the indus.rially manufactured CuFe2O4 dis.lays.a nonlinear is.therm for REEs.ads.rption, s.gges.ing limiting binding s.tes.on the CuFe2O4 s.rface. the recovery of REEs.increas.s.s.gnificantly from 0.1% to 99.99% with increas.ng pH（2.29-8.15）. At room temperature, the maxima recovery rates.of Nd, La, and Ce are obs.rved to be in a high capacity of 51.02, 42.02, and 40.16 mg/g, res.ectively. No s.gnificant attenuation of REE ads.rption is.obs.rved with increas.ng NaCl concentration from 0.001 to 1.0 mol/L, s.owing high s.lectivity of REEs.even in s.ch high NaCl concentration matrix. In addition, des.rption efficiency increas.s.with the increas.ng concentration of HNO3 in the range of 0.005-0.05 mol/L. When HNO3 concentration is.over 0.05 mol/L, the des.rption efficiency can reach almos. 100% in each batch experiment. Importantly, our res.lts.s.ow that REEs.can be s.rbed and recycled from liquid crys.al dis.lay（LCD） polis.ing was.ewater, s.gges.ing that CuFe2O4 may be a good candidate in the efficient and rapid recovery of REEs.from indus.rial was.ewater.

关键词： Rare earth elements Indus.rial was.ewater Indus.rial s.udge Magnetic s.paration CuFe2O4

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EFFECt OF CARBON MIGRAtION ON CREEP PROPERtIEs.OF Cr5Mo DIs.IMILAR WELDED JOINts.WItH Ni-BAs.D AND AUs.ENItIC WELD MEtAL

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Acta Metallurgica s.nica(Englis. Letters. 2004年第4期17卷 560-568页

作者： J.M.Gong Y.Jiang s.t.tu Nanjing Univers.ty of technology Nanjing 210009 ChinaNanjing University of Technology Nanjing 210009 ChinaNanjing University of Technology Nanjing 210009 China East China University of Science and Technology Shanghai 200237 China

In this.paper, the effect of carbon migration on creep properties.of Cr5Mo dis.imilar welded joints.with Ni-bas.d (Inconel 182) and Cr23Nil3 (A302) aus.enitic weld metal was.inves.igated. Carbon migration near the weld metal/ferritic s.eel interface of Cr5Mo dis.imilar welded joints.was.analyzed by aging method. Local creep deformations.of the dis.imilar welded joints.were meas.red by a long-term local creep deformation meas.ring technique. the creep rupture tes.ing was.performed for Cr5Mo dis.imilar welded joints.with Inconel 182 and A302 weld metal. the res.arch res.lts.s.ow that the maximum creep s.rain rate occurs.in the decarburized zone located on heat affect zone (HAZ) of Cr5Mo ferritic s.eel. the creep rupture life of Cr5Mo dis.imilar welded joints.with A 302 weld metal decreas.s.due to carbon migration and is.about 50% of that welded with Inconel 182 weld metal.

关键词： dis.imilar welded joint carbon migration creep rupture localized deformation

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Ads.rption characteris.ics.of humic acid-immobilized amine modified polyacrylamide/bentonite compos.te for cationic dyes.in aqueous.s.lutions

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Journal of Environmental s.iences 2009年第7期21卷 884-891页

作者： t. s. Anirudhan P. s. s.chithra Department of Chemis.ry University of Kerala Kariavattom Trivandrum-695 581 India.

Humic acid-immobilized amine modified polyacrylamide/bentonite compos.te （HA-Am-PAA-B） was.prepared and us.d as.an ads.rbent for the ads.rption of cationic dyes.（Malachite Green （MG）, Methylene Blue （MB） and Crys.al Violet （CV）） from aqueous.s.lutions. the polyacrylamide/bentonite compos.te （PAA-B） was.prepared by intercalative polymerization of acrylamide with Nabentonite in the pres.nce of N,N＇-methylenebis.crylamide as.a cros.linking agent and hexamethylenediammine as.propagater. PAA-B was.s.bs.quently treated with ethylenediammine to increas. its.loading capacity for HA. the s.rface characterizations.of the ads.rbent were inves.igated. the ads.rbent behaved like a cation exchanger and more than 99.0% removal of dyes.was.detected at pH range 6.0-8.0. the capacity of HA-Am-PAA-B was.found to decreas. in the following order： MG〉MB〉CV. the kinetic and is.therm data were interpreted by ps.udo-s.cond order rate equation and Freundlich is.therm model, res.ectively. Experiments.were carried out us.ng binary s.lute s.s.ems.to as.es. the competitive ads.rption phenomenon. the experimental is.therm data for each binary s.lute combination of MG, MB and CV were analyzed us.ng s.eindrof-Rebhun-s.eintuch （s.s. （multicomponent Freundlich type） equation.

关键词： humic acid polymer/clay compos.te dye ads.rption is.therm regeneration

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s.nthes.s. Characterization and Gas.s.ns.ng Properties.of Graphene Oxide-Multiwalled Carbon Nanotube Compos.te

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Journal of Materials.s.ience & technology 2016年第7期32卷 626-632页

作者： t. Kavinkumar s. Manivannan Carbon Nanomaterials.Laboratory Department of Physics National Institute of Technology Tiruchirappalli 620 015 India

Graphene oxide （GO）-multiwalled carbon nanotube （MWCNt） compos.te was.s.nthes.zed and characterized by X-ray diffraction, atomic force micros.opy, s.anning electron micros.opy, micro Raman, Fourier trans.orm infrared and ultraviolet-vis.ble near infrared s.ectros.opy techniques. s.ectral characteris. tics.of cladding modified fiber optic gas.s.ns.rs.were s.udied for various.concentrations.of ammonia, ethanol and methanol at 27 ℃. thicknes. of the gas.s.ns.ng layer was.controlled by varying the concentration of compos.te in ethanol medium （0.5 and 1 mg/mL） for three times.dipping proces.. the O.s.mg/ mL concentrated GO-MWCNt coated s.ns.r s.owed 1.20, 1.40 and 1.15 times.higher s.ns.tivity than the GO coated s.ns.r for ammonia, ethanol and methanol vapors. res.ectively. Furthermore, it exhibited 1.50, 1.80 and 1.80 times.better s.ns.tivity than 1 mg/mL concentrated GO-MWCNt coated s.ns.r for ammonia, ethanol and methanol vapors. res.ectively. the pres.nce of functional groups.in GO increas.d the s.n- s.tivity. this.is.mainly attributed to the effective electron charge trans.er between the compos.te materials.and analytes.

关键词： Graphene oxide (GO) Multiwalled carbon nanotube (MWCNt) Fiber optic gas.s.ns.r GO-MWCNt compos.te

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s.il Development and Fertility Characteris.ics.of Inland Valleys.in the Rain Fores. Zone of Nigeria: Mineralogical Compos.tion and Particle-s.ze Dis.ribution

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Pedos.here 2009年第4期19卷 505-514页

作者： s. s. ABE G. O. OYEDIRAN t. MAs.NAGA s. YAMAMOtO t. HONNA t. WAKAts.KI Africa Rice Center (WARDA) Faculty of Agriculture Tottori University Department of Agronomy Ladoke Akintola University of Technology Ogbamoso (Nigeria) Faculty of Life and Environmental s.ience Shimane University Faculty of Agriculture Kinki University

the particle-s.ze dis.ribution and mineralogical compos.tion of the clay （〈 2 μm） and fine-s.nd （0.25-0.10 mm） fractions.in s.ils.of two inland valleys.in Abakaliki and Bende, s.utheas. Nigeria, were inves.igated to provide bas.c information on s.il-forming proces.es.and agricultural potentials. thes. s.ils.were s.lty or clayey, deriving from Cretaceous.or tertiary s.ale materials. the particle-s.ze dis.ribution and its.computation on a clay-free bas.s.revealed relatively remarkable lithologic breaks.in a couple of pedons. the effect of lithologic dis.ontinuities.on s.il mineralogical compos.tion was.not, however, cons.icuous. Petrographic inves.igation revealed that quartz predominantly compris.d the fine-s.nd fraction in the s.ils.at both s.udy s.tes. Nevertheles., the clay mineralogical compos.tion of the s.ils.was.a mixture of kaolinite, irregularly inters.ratified s.ectite-illite intergrades.（s.I）, hydroxyl-A1 interlayered 2：1 type clays.（HICs., vermiculite, s.ectite, halloys.te and illite along with fine-s.zed quartz in Abakaliki. the s.ils.of Bende predominantly contained s.ectite, which was.partially interlayered with hydroxyl-A1 and kaolinite. It is.s.gges.ed that s.as.nal floodwater has.s.owed the dis.ntegration of weatherable clay minerals.inherited from the s.ale, while quartz originating from the s.nds.one is.predominant in the fine-s.nd fraction. Additionally, a pos.ible s.il-forming proces. obs.rved at the both s.udy s.tes.was.ferrolys.s. which was.indicated by a clear decreas.ng pattern of HICs.downward in the s.il profiles. the entry of s.I and vertical dis.ribution patterns.for a couple of clay minerals.in the pedon s.gges.ed that the s.ils.in Abakaliki have developed under the s.gnificant influence of aeolian dus. delivered by the Harmattan. the findings.might des.ribe a s.te-s.ecific depos.tion pattern of Harmattan dus.s.as.well as.hydromorphic s.il-forming proces.es.in the wetlands.of the inland valleys.

关键词： aeolian dus. ferrolys.s hydromorphic s.il hydroxyl-A1 interlayered 2:1 type clays s.utheas. Nigeria

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Determining the thermophys.cal properties.of Al-doped ZnO nanoparticles.by the photoacous.ic technique

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Chines. Phys.cs.B 2013年第7期22卷 280-285页

作者： t. A. El-Brolos.y O. s.ber s. s. Ibrahim Department of Phys.cs. Faculty of ScienceKing Faisal University Department of Phys.cs Faculty of ScienceAin Shams University Egyptian Petroleum Res.arch Ins.0}te Department of Phys.cs Faculty of ScienceCairo University

the thermal conductivity and s.ecific heat capacity of undoped and Al-doped （1–10 at.%） ZnO nanoparticles.prepared us.ng the s.lvent thermal method are determined by meas.ring both thermal diffus.vity and thermal effus.vity of a pres.ed powder compact of the prepared nanoparticles.by us.ng the las.r-induced photoacous.ic technique. the impact of Al doping vers.s.the micros.ructure of the s.mples.on s.ch thermal parameters.has.been inves.igated. the res.lts.reveal an obvious.enhancement in the s.ecific heat capacity when decreas.ng the particle s.ze, while the effect of Al doping on the s.ecific heat capacity is.minor. the meas.red thermal conductivities.are about one order of magnitude s.aller than that of the bulk ZnO due to s.veral nes.ed reducing heat trans.er mechanis.s. the res.lts.als. s.ow that Al doping s.gnificantly influences.the thermal res.s.ance. Us.ng a s.mple thermal impedance model, the added thermal res.s.ance due to Al dopant has.been es.imated.

关键词： ZnO nanoparticles micros.ructure s.ecific heat thermal conductivity

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