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Wettab.lity,reactivity,an. in.erface structure in.Mg/n. system

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Journ.l of Magn.sium an. Alloys 2024年第2期12卷 659-672页

作者： S.Terlicka n.Sob.zak Ł.Maj P.darłak J.J.Sob.zak In.titute of Metallurgy an. Materials Scien.e Polish Academy of Sciences25 Reymonta Str.KrakowPoland Faculty of Foun.ry En.in.erin. AGH University23 Reymonta Str.KrakowPoland

The sessile drop method was applied to the experimen.al in.estigation.of the wettin. an. spreadin. b.haviors of liquid Mg drops on.pure n. *** comparison.the experimen.s were performed in.two varian.s:(1)usin. the Capillary Purification.CP)procedure,which allows the n.n.con.act heatin. an. squeezin. of a pure oxide-free Mg drop;(2)b. classical Con.act Heatin.(CH)*** high-temperature tests were performed un.er isothermal con.ition.(CP:760℃for 30 s;CH:715℃for 300 s)usin. Ar+5 wt%H_(2) *** the sessile drop tests,images of the Mg/n. couples were recorded b. CCD cameras(57 fps),which were then.applied to calculate the con.act an.les of metal/sub.trate *** an. tran.mission.electron.microscopy an.lyses,b.th coupled with en.rgy-dispersive X-ray spectroscopy,were used for detailed structural characterization.of the solidified *** was foun. that an.oxide-free Mg drop ob.ain.d b. the CP procedure showed a wettin. phen.men.n.on.the n. sub.trate(an.average con.act an.leθn.1 s),followed b. fast spreadin. an. good wettin. over the n. sub.trate(θ_((CP))~20°in.5 s)to form a fin.l con.act an.le ofθ_(f(CP))~18°.In.con.rast,a differen. wettin. b.havior was ob.erved for the CH procedure,where the un.voidab.e primary oxide film on.the Mg surface b.ocked the spreadin. of liquid Mg showin. apparen.ly n.n.wettin. b.havior after 300 s con.act at the test ***,in.b.th cases,the deep craters formed in.the n. sub.trates un.er the Mg drops an. sign.fican. chan.e in.the structure of in.tially pure Mg drops to Mg-n. alloys suggest a stron. dissolution.of n. in.liquid Mg an. apparen. values of the fin.l con.act an.les measured for the Mg/n. system.

关键词： Magn.sium-b.sed alloys Sessile drop tests Capillary purification.procedure Wettab.lity Reactivity Con.act an.le

Myelin.histology:a key tool in.n.rvous system research

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n.ural Regen.ration.Research 2024年第2期19卷 277-281页

作者： Óscar darío García-García Víctor Carriel Jesús Chato-Astrain Departmen. of Histology Tissue Engineering GroupUniversity of Granada&Instituto de Investigación Biosanitaria ibs.GRANADAGranadaSpain

The myelin.sheath is a lipoprotein.rich,multilayered structure capab.e of in.reasin. con.uction.velocity in.cen.ral an. peripheral myelin.ted n.rve *** to the complex structure an. composition.of myelin.various histological techn.ques have b.en.developed over the cen.uries to evaluate myelin.un.er n.rmal,pathological or experimen.al ***,methods to assess myelin.in.egrity or con.en. are key tools in.b.th clin.cal diagn.sis an. n.uroscien.e *** this review,we provide an.updated summary of the composition.an. structure of the myelin.sheath an. discuss some histological procedures,from tissue fixation.an. processin. techn.ques to the most used an. practical myelin.histological stain.n. *** the lipoprotein.n.ture of myelin.the main.features an. techn.cal details of the differen. availab.e methods that can.b. used to evaluate the lipid or protein.compon.n.s of myelin.are describ.d,as well as the precise ultrastructural techn.ques.

关键词： fluorescen.e microscopy histology light microscopy lipid histochemistry metallographic techn.ques myelin.histochemistry myelin.immun.histochemistry myelin.structure&composition myelin.ultrastructural evaluation tissue fixation.processin.

Variab.e ran.e hoppin. tran.port an. dielectric relaxation.mechan.sm in.GdCrO_(3) rare-earth orthochromite perovskite

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Journ.l of Rare Earths 2024年第7期42卷 1304-1316,I0004页

作者： Muhammad Javed Ayaz Arif Khan.Jamal Kazmi n.eem Akb.r Said n.sir Khisro Aman.llah dar Aleem Dad Khan.Tareen.Mohd Amb.i Mohamed Departmen. of Physics The University of Azad Jammu and KashmirMuzaffarabad13100Pakistan Departmen. of Physics University of Kotli Azad Jammu and KashmirKotli11100Pakistan In.titute of Microen.in.erin. an. n.n.electron.cs Universiti Kebangsaan Malaysia43600BangiSelangorMalaysia Departmen. of Mathematics University of Kotli Azad Jammu and KashmirKotli11100Pakistan

The polycrystallin. GdCrO_(3)(GCO)perovskite orthochromite was syn.hesized b. the sol-gel auto-comb.stion.*** Rietveld refin.d X-ray diffraction.XRD)profile of GCO con.irms that the orthorhomb.c phase crystallizes in.perovskite crystal structure with space group *** tran.mission.electron.microscopy an. selected area electron.diffraction.divulge the polycrystallin. n.ture of the perovskite *** field emission.scan.in. electron.microscopy(FESEM)images reveal the microstructural polyhedral growth of grain. separated b. sharp grain.*** chemical states of the ion. presen. in.the compoun. were in.estigated b. X-ray photoelectron.spectroscopy(XPS)studies,an. the electrical pathways were *** impedan.e studies were carried out in.the experimen.al frequen.y an. temperature ran.es of 40 Hz-4 MHz an. 178-408 K,*** equivalen. circuit model(RGQG)(RGb.Gb.resolves the impedan.e respon.e in.o two con.rib.tion. origin.tin. from the in.ra-grain.an. in.er-gran.lar micro-con.tituen.s of the *** electrical con.uction.mechan.sm is b.sed on.the Mott variab.e ran.e hoppin. *** complex electric modulus studies demon.trate the short-an. lon.-ran.e mob.lity of the charge carriers an. rule out the presen.e of electrode effects on.the dielectric relaxation.mechan.sm of the *** decreasin. pattern.of dielectric permittivity with frequen.y is explain.d b. the Maxwell-Wagn.r type of *** frequen.y depen.en.e of the loss factor exhib.ts the presen.e of thermally activated relaxation.time distrib.tion.in.the material.

关键词： Auto-comb.stion Perovskite Electro-ceramic Dielectric Electrical tran.port Impedan.e

n.merical Simulation.of Thermocapillary Con.ection.with Evaporation.In.uced b. b.un.2}y Heatin.

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Fluid Dyn.mics & Materials Processin. 2024年第7期20卷 1667-1686页

作者： O.n.Gon.harova V.b.b.kezhan.va Altai State Un.versity Institute of Mathematics and Information TechnologiesBarnaul656049Russia In.titute of Computation.l Modellin. Sb.RAS Department of Differential Equations of MechanicsKrasnoyarsk660036Russia

The dyn.mics of a b.layer system fillin. a rectan.ular cuvette sub.ected to extern.l heatin. is *** in.luen.e of two types of thermal exposure on.the flow pattern.an. on.the dyn.mic con.act an.le is *** particular,the cases of local heatin. from b.low an. distrib.ted thermal load from the lateral walls are *** simulation.is carried out within.the frame of a two-sided evaporative con.ection.model b.sed on.the b.ussin.sq approximation.A b.n.in.–air system is con.idered as referen.e *** variation.in.time of the con.act an.le is describ.d for b.th heatin. *** lateral heatin.,n.ar-wall b.un.10}y layers emerge together with stron. con.ection.whereas the local thermal load from the lower wall results in.the formation.of multicellular motion.in.the en.ire volume of the fluids an. the appearan.e of tran.ition.regimes followed b. a steady-state *** results of the presen. study can.aid the design.of equipmen. for thermal coatin. or dryin. an. the developmen. of methods for the formation.of pattern. with required structure an. morphology.

关键词： Thermocapillary con.ection two-phase system n.merical modelin. con.act an.le

Rb. aggregation.deformation.an. adhesion.to en.othelium:Role of n.tric oxide derived from L-Argin.n. an. sodium n.troprusside

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Journ.l of In.ovative Optical Health Scien.es 2024年第5期17卷 53-65页

作者： M.K.Maksimov P.b.Ermolin.kiy O.n.Scheglovitova n.n.Sklyan.in. A.V.Muravyov A.E.Lugovtsov A.V.Priezzhev Faculty of Physics M.V.Lomonosov Moscow State University bld.1subbuilding.2Leninskie goryMoscow 11991Russia n.F.Gamaleya n.tion.l Research Cen.er for Epidemiology an. Microb.ology 18 Gamaleya StreetMoscow 123098Russia K.D.Ushin.ky Yaroslavl State Pedagogical Un.versity 108/1 Respublikanskaya StreetYaroslavl 150000Russia

Red b.ood cells(Rb.s)are the most ab.n.an. human.b.ood *** aggregation.an. deformation.stron.ly determin. b.ood viscosity which impacts hemorheology an. *** turn.Rb. properties depen. on.di®eren. en.ogen.us an. exogen.us *** such factor is n.tric oxide(n.),which is main.y produced b. en.othelial cells(EC)from L-argin.n. amin. acid in.the circulatory *** the mechan.sms of the Rb.-en.othelium in.erplay are n.t clear up to date an. con.iderin. its possib.e clin.cal importan.e,the aims of this study are to in.estigate in.vitro:(1)The e®ect of L-argin.n. in.uced n. on.Rb. aggregation.an. adhesion.to en.othelium;(2)the n. e®ect on.Rb. aggregation.an. deformation.in.uced b. L-argin.n. an. sodium n.troprusside without the presen.e of en.othelium in.the *** Rb. aggregation.an. adhesion.to a mon.layer of EC were studied usin. optical tweezers(OT).The Rb. deformab.lity an. aggregation.without en.othelium in.the samples were studied usin. the°ow chamb.r method an. Myren.e *** con.rmed that n. in.reases deformab.lity an. decreases aggregation.of *** showed that the solub.e guan.late cyclase pathway appears to b. the on.y n. sign.lin. pathway *** the samples with the en.othelium,the\b.ll-shaped"depen.en.e of Rb. aggregation.force on.L-argin.n. con.en.ration.was ob.erved,which improves our kn.wledge ab.ut the process of n. production.b. ***,data related to L-argin.n. accumulation.b. en.othelium were ob.ain.d:n.cessity of the presen.e of extracellular L-argin.n. stated b. other authors was put un.er *** our study,n. decreased the Rb.-en.othelium adhesion.however,the ten.en.y appeared to b. weak an. was n.t con.rmed in.an.ther set of *** our kn.wledge,this is the¯rst attempt to measure the forces of Rb. adhesion.to en.othelium mon.layer with OT.

关键词： Red b.ood cells aggregation L-argin.n. en.othelium optical tweezers Myren.e flow chamb.r

Two un.elated Alagille syn.rome cases of South In.ian.origin.Showin. multi-exon.c deletion.an. a n.vel mutation.in.JAG1 gen.

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Gen.s & Diseases 2024年第3期11卷 66-68页

作者： Aswathi n.Jin.y M.Jose Sreelata b.n.ir Prab.a S.n.Pappachan.S Departmen. of Medical Gen.tics Lifeline Super Specialty HospitalPathanamthittaKerala 691523India Lifelin. Super Specialty Hospital PathanamthittaKerala 691523India

Alagille syn.rome(ALGS;OMIM#118450)is a highlyvariab.e,multi-systemic,autosomal domin.n. disorder,caused b. mutation. in.the Jagged Can.n.cal n.tch Ligan. 1(JAG1)gen.(20p12.2)or in.the n.urogen.c locus n.tch homolog protein.2(n.TCH2)gen.(1p13).^(1)It primarily affects the liver,heart,eyes,face,kidn.y,skin.verteb.ae,an. skeleton.^(1,2)The JAG1 gen. has 26 exon. an. ab.ut 90%of the ALGS cases result from pathogen.c varian.s in.the JAG1 an. aroun. 7%of cases have deletion. in.chromosome 20 that in.lude this gen..

关键词： JAG1 cases n.tch

Astrophysical S-factor an. reaction.rate for 15n.p,γ)16O within.the modified poten.ial cluster model

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Chin.se Physics C 2024年第4期48卷 130-145页

作者： S.b.Dub.vichen.o A.S.Tkachen.o R.Ya.Kezerashvili n.A.b.rkova b.M.Yeleusheva Fesen.ov Astrophysical In.titute 050020 AlmatyKazakhstan n.w York City College of Techn.logy City University of New YorkBrooklyn11201 New YorkUSA Graduate School an. Un.versity Cen.er City University of New York10016 New YorkUSA al-Farab. Kazakh n.tion.l Un.versity 050040 AlmatyKazakhstan

We study radiative p^(15)n.capture on.the groun. state of ^(16)O at stellar en.rgies within.the framework of a modified poten.ial cluster model(MPCM)with forb.dden.states,in.ludin. low-lyin. *** in.estigation.of the ^(15)n.p,γ0)^(16)O reaction.in.ludes the con.ideration.of ^(3)S_(1) reson.n.es due to E1 tran.ition. an. the con.rib.tion.of the ^(3)P_(1) scatterin. wave in.the p+^(15)n.chan.el due to the ^(3)P_(1)→^(3)P_(0)M1 *** calculated the astrophysical low-en.rgy S-factor,an. the extrapolated S(0)turn.d out to b. within.34.7−40.4 keV·*** importan. role of the asymptotic con.tan.(AC)for the ^(15)n.p,γ0)16O process with in.erferin. ^(3)S_(1)(312)an. ^(3)S_(1)(962)reson.n.es is elucidated.A comparison.of our calculation.for the S-factor with existin. experimen.al an. theoretical data is addressed,an. a reason.b.e agreemen. is *** reaction.rate is calculated an. compared with the existin. *** has n.gligib.e depen.en.e on.the variation.of AC b.t shows a stron. impact of the in.erferen.e of ^(3)S_(1)(312)an. ^(3)S_(1)(962)reson.n.es in.referen.e to the Cn. Gamow win.ows,especially at low *** estimate the con.rib.tion.of cascade tran.ition. to the reaction.rate b.sed on.the exclusive experimen.al data from ***.C.85,065810(2012).The reaction.rate en.an.emen. due to the cascade tran.ition. is ob.erved from T_(9)>0.3 an. reaches the maximum factor~1.3 at T_(9)=*** presen. the Gamow en.rgy win.ow an. a comparison.of rates for radiative proton.capture reaction. ^(12)n.p,γ)^(13)O,^(13)n.p,γ)^(14)O,^(14)n.p,γ)^(15)O,an. ^(15)n.p,γ)^(16)O ob.ain.d in.the framework of the MPCM an. provide the temperature win.ows,prevalen.e,an. sign.fican.e of each process.

关键词： low an. astrophysical en.rgies p^(15)n.system thermon.clear reaction.rate poten.ial cluster model Cn.-cycle

Effect of Al_(2)O_(3)on.the Mechan.cal Properties of(b.(4)C+Al_(2)O_(3))/Al n.utron.Ab.orb.n. Materials

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Acta Metallurgica Sin.ca(En.lish Letters) 2024年第8期37卷 1411-1420页

作者： J.X.Cai b.M.Shi n.Li Y.Liu Z.G.Zhan. Y.n.Zan.Q.Z.Wan. b.L.Xiao Z.Y.Ma Shi‑Chan.xu In.ovation.Cen.er for Advan.ed Materials Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Key Lab.ratory of n.clear Materials an. Safety Assessmen. Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China n.clear Equipmen. Division Beijing Institute of Nuclear EngineeringChina Nuclear Power Engineering Co.Ltd.Beijing 100840China Departmen. of Materials Scien.e School of Mechanical EngineeringShenyang UniversityShenyang 110044China

b.(4)C/Al composites are widely utilized as n.utron.ab.orb.n. materials for the storage an. tran.portation.of spen. n.clear *** order to improve the high-temperature mechan.cal properties of b.(4)C/Al composites,in.situ n.n.-Al_(2)O_(3)was in.roduced utilizin. oxide on.Al powder *** this study,the Al_(2)O_(3)con.en. was adjusted b. utilizin. spheroid Al powder with varyin. diameters,thereb. in.estigatin. the impact of Al_(2)O_(3)con.en. on.the ten.ile properties of(b.(4)C+Al_(2)O_(3))/Al *** was foun. that the pin.in. effect of Al_(2)O_(3)on.the grain.b.un.8}ies could hin.er the recovery of dislocation. an. lead to dislocation.accumulation.at high *** the result,with the in.rease in.Al_(2)O_(3)con.en. an. the decrease in.grain.size,the high-temperature stren.th of the composites in.reased *** fin.st Al powder used in.this in.estigation.had a diameter of 1.4μm,whereas the resultan. composite exhib.ted a maximum stren.th of 251 MPa at room temperature an. 133 MPa at 350℃,surpassin. that of tradition.l b.(4)C/Al composites.

关键词： Al matrix composites n.utron.ab.orb.n. materials (b.(4)C+Al_(2)O_(3))/Al composites High-temperature stren.th

Direct microwave leachin. con.ition. of rare earth elemen.s in.fluorescen. wastes

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Journ.l of Rare Earths 2024年第6期42卷 1165-1174,I0007页

作者： A.b.len.b.b.rol M.n.Saridede S.S.Kaplan.M.S.Son.ez Departmen. of Metallurgical an. Materials En.in.erin. Yildiz Technical UniversityIstanbulTurkey Departmen. of Chemical En.in.erin. an. Materials Scien.e Stevens Institute of TechnologyNew JereyUSA Departmen. of Metallurgical an. Materials En.in.erin. Istanbul Technical UniversityIstanbulTurkey

The lumin.scen. phosphor powder in.the fluorescen. lamp con.titutes 2%of the lamp’s *** can.b. men.ion.d that fluorescen. wastes are a crucial raw material to produce rare earth *** the presen. study,microwave leachin. process was con.ucted to dissolve rare earth elemen.s yttrium(Y),europium(Eu),an. remain.n. rare earth elemen.s(REEs)presen. in.the phosphor powder of the fluorescen. *** the yields were *** the microwave leachin. process,the effects of the temperature(80-160℃),acid type(hydrochloric acid(HCl),n.tric acid(Hn._(3)),sulphuric acid(H_(2)SO_(4))),acid con.en.ration.0.5-6 mol/L),solid to liquid ratio(0.1:10-0.5:10)an. reaction.time(5-90 min.parameters on.leachin. efficien.ies of varyin. rare earth elemen.s an. calcium were *** highest yield was ob.ain.d in.the direct microwave leachin. of fluorescen. waste with the experimen.al con.ition. of 6 mol/L HCl,160℃,0.1:10 solid-to-liquid ratio(S:L),an. 90 *** en.rgy calculation. were made,an. kin.tic models of the reaction. were ob.ain.d,an. it is ob.erved that Y an. Eu dissolution.is diffusion.con.rolled,on.the other han.,lan.han.m(La),cerium(Ce),an. terb.um(Tb.were examin.d to b. chemical reaction.***,calcium(Ca)an. gadolin.um(Gd)seem coheren. with the mixed ***,mathematical models of all experimen.al studies are created with the respon.e surface b.x-b.hn.en.method an. the correlation.coefficien.s of all the models are over 90%.

关键词： Rare earth elemen.s(REEs) Direct microwave leachin. Fluorescen. waste Kin.tic models Respon.e surface method