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Astr.physical S-factor.and r.action r.te for.15N(p,γ)16O within the modified potential cluster.model

Chinese Physics C 2024年第4期48卷 130-145页

作者： S.B.Dubovichenko A.S.Tkachenko r.ya.Kezer.shvili N.A.Bur.ova B.m.Yeleusheva Fesenkov Astr.physical Institute 050020 AlmatyKazakhstan New Yor. City College of Technology City University of New YorkBrooklyn11201 New YorkUSA Gr.duate School and Univer.ity Center City University of New York10016 New YorkUSA al-Far.bi Kazakh National Univer.ity 050040 AlmatyKazakhstan

We study r.diative p^(15)N captur. on the gr.und state of ^(16)O at stellar.ener.ies within the fr.mewor. of a modified potential cluster.model(mPCm)with for.idden states,including low-lying *** investigation of the ^(15)N(p,γ0)^(16)O r.action includes the consider.tion of ^(3)S_(1) r.sonances due to E1 tr.nsitions and the contr.bution of the ^(3)P_(1) scatter.ng wave in the p+^(15)N channel due to the ^(3)P_(1)→^(3)P_(0)m1 *** calculated the astr.physical low-ener.y S-factor.and the extr.polated S(0)tur.ed out to be within 34.7−40.4 keV·*** impor.ant r.le of the asymptotic constant(AC)for.the ^(15)N(p,γ0)16O pr.cess with inter.er.ng ^(3)S_(1)(312)and ^(3)S_(1)(962)r.sonances is elucidated.A compar.son of our.calculation for.the S-factor.with existing exper.mental and theor.tical data is addr.ssed,and a r.asonable agr.ement is *** r.action r.te is calculated and compar.d with the existing *** has negligible dependence on the var.ation of AC but shows a str.ng impact of the inter.er.nce of ^(3)S_(1)(312)and ^(3)S_(1)(962)r.sonances in r.fer.nce to the CNO Gamow windows,especially at low *** estimate the contr.bution of cascade tr.nsitions to the r.action r.te based on the exclusive exper.mental data fr.m ***.C.85,065810(2012).The r.action r.te enhancement due to the cascade tr.nsitions is obser.ed fr.m T_(9)>0.3 and r.aches the maximum factor.1.3 at T_(9)=*** pr.sent the Gamow ener.y window and a compar.son of r.tes for.r.diative pr.ton captur. r.actions ^(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 fr.mewor. of the mPCm and pr.vide the temper.tur. windows,pr.valence,and significance of each pr.cess.

关键词： low and astr.physical ener.ies p^(15)N system ther.onuclear.r.action r.te potential cluster.model CNO-cycle

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Stomatal dynamics ar. r.gulated by leaf hydr.ulic tr.its and guar. cell anatomy in nine tr.e mangr.ve species

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Plant Diver.ity 2024年第3期46卷 395-405页

作者： ya-Dong Qie Qi-Wei Zhang Scott A.m.mcAdam Kun-Fang Cao State Key Labor.tor. for.Conser.ation and Utilization of Subtr.pical Agr.-Bior.sour.es College of ForestryGuangxi UniversityNanning 530004China Guangxi Key Labor.tor. of For.st Ecology and Conser.ation College of ForestryGuangxi UniversityNanning 530004China Key Labor.tor. of Ecology of r.r. and Endanger.d Species and Envir.nmental Pr.tection Ministry of EducationGuangxi Normal UniversityGuilin 541001China Guangxi Key Labor.tor. of Landscape r.sour.es Conser.ation and Sustainable Utilization in Lijiang r.ver.Basin Guangxi Normal UniversityGuilin 541001China Pur.ue Center.for.Plant Biology Department of Botany and Plant PathologyPurdue UniversityWest LafayetteIN 47907USA

Stomatal r.gulation is cr.tical for.mangr.ves to sur.ive in the hyper.saline inter.idal zone wher. water.str.ss is sever. and water.availability is highly ***,ver. little is known about the stomatal sensitivity to vapour.pr.ssur. deficit(VPD)in mangr.ves,and its co-or.ination with stomatal mor.hology and leaf hydr.ulic *** measur.d the stomatal r.sponse to a step incr.ase in VPD in situ,stomatal anatomy,leaf hydr.ulic vulner.bility and pr.ssur.-volume tr.its in nine tr.e mangr.ve species of five families and collected the data of genome *** aimed to answer.two questions:(1)Does stomatal mor.hology influence stomatal dynamics in r.sponse to a high VPD in mangr.ves?with a consider.tion of possible influence of genome size on stomatal mor.hology;and(2)do leaf hydr.ulic tr.its influence stomatal sensitivity to VPD in mangr.ves?We found that the stomata of mangr.ve plants wer. highly sensitive to a step r.se in VPD and the stomatal r.sponses wer. dir.ctly affected by stomatal anatomy and hydr.ulic ***,denser.stomata was cor.elated with faster.stomatal closur. at high VPD acr.ss the species of r.izophor.ceae,and stomata size negatively and vein density positively cor.elated with genome *** negative leaf osmotic pr.ssur. at the full tur.or.πo)was r.lated to higher.oper.ting steady-state stomatal conductance(gs);and a higher.leaf capacitance(Cleaf)and mor. embolism r.sistant leaf xylem wer. associated with slower.stomatal r.sponses to an incr.ase in *** addition,stomatal r.sponsiveness to VPD was indir.ctly affected by leaf mor.hological tr.its,which wer. affected by site salinity and consequently leaf water.*** r.sults demonstr.te that mangr.ves display a unique r.lationship between genome size,stomatal size and vein packing,and that stomatal r.sponsiveness to VPD is r.gulated by leaf hydr.ulic tr.its and stomatal *** wor. pr.vides a quantitative fr.mewor. to better.under.tand of stomatal r.gulation in mangr.ves

关键词： Stomatal tempor.l kinetics Vapour.pr.ssur. deficit(VPD) Leaf water.r.lations Leaf hydr.ulic vulner.bility Leaf osmotic potential Genome size

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Non-dimensional analysis on blast wave pr.pagation in foam concr.te:minimum thickness to avoid str.ss enhancement

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Defence Technology（防务技术） 2024年第6期36卷 30-46页

作者： ya yang Xiangzhen Kong Qin Fang State Key Labor.tor. of Disaster.Pr.vention&mitigation of Explosion&Impact Army Engineering University of PLANanjing 210007JiangsuChina

Foam concr.te is a pr.spective mater.al in defense engineer.ng to pr.tect str.ctur.s due to its high ener.y absor.tion capability r.sulted fr.m the long plateau ***,str.ss enhancement r.ther.than str.ss mitigation may happen when foam concr.te is used as sacr.ficial claddings placed in the path of an incoming blast *** investigate this inter.sting phenomenon,a one-dimensional differ.nce model for.blast wave pr.pagation in foam concr.te is fir.tly pr.posed and numer.cally solved by impr.ving the second-or.er.Godunov *** differ.nce model and numer.cal algor.thm ar. validated against exper.mental r.sults including both the str.ss mitigation and the str.ss *** differ.nce model is then used to numer.cally analyze the blast wave pr.pagation and defor.ation of mater.al in which the effects of blast loads,str.ss-str.in r.lation and length of foam concr.te ar. *** par.icular.the concept of minimum thickness of foam concr.te to avoid str.ss enhancement is ***,non-dimensional analysis on the minimum thickness is conducted and an empir.cal for.ula is pr.posed by cur.e-fitting the numer.cal data,which can pr.vide a r.fer.nce for.the application of foam concr.te in defense engineer.ng.

关键词： Foam concr.te Blast wave pr.pagation Non-dimensional analysis Str.ss enhancement

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High-temper.tur. wetting behavior.between slag and r.fr.ctor.

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Jour.al of Ir.n and Steel r.sear.h Inter.ational 2024年第6期31卷 1304-1319页

作者： Yong-xin Wang ya-ge Li ya-bo Gao Zhong Huang Hai-jun Zhang The State Key Labor.tor. of r.fr.ctor.es and metallur.y Wuhan University of Science and TechnologyWuhan 430081HubeiChina

Slag cor.osion is one of the main factor. of the damage of r.fr.ctor.,and its pr.mar. manifestations involve the melting of r.fr.ctor. in slag and the slag penetr.tion into r.fr.ctor.,both of which ar. highly r.lated to the wetting behavior.between slag and *** high-temper.tur. wettability could be char.cter.zed by par.meter. including the sur.ace tension,adhesion wor.,and spr.ading coefficient of the slag on r.fr.ctor. sur.ace,and it could be suppr.ssed by alter.ng the slag/r.fr.ctor. inter.ace,thus r.sulting in an impr.ved anti-cor.osion *** this,the key knowledges of the slag cor.osion,theor. of wetting behavior.and test of high-temper.tur. contact angle wer. fir.tly ***,the major.factor. influencing the high-temper.tur. slag wetting behavior.wer. discussed based on the aspects of slag composition,r.fr.ctor. composition,and sur.ace ***,the futur. r.sear.h dir.ction was pr.posed in this field.

关键词： High-temper.tur. wetting r.fr.ctor. Slag cor.osion Sur.ace tension

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Cyclic Gr.dient methods for.Unconstr.ined Optimization

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Jour.al of the Oper.tions r.sear.h Society of China 2024年第3期12卷 809-828页

作者： ya Zhang Cong Sun School of Science Beijing University of Posts and TelecommunicationsBeijing100876China

Gr.dient method is popular.for.solving lar.e-scale *** this wor.,the cyclic gr.dient methods for.quadr.tic function minimization ar. extended to gener.l smooth unconstr.ined optimization *** with nonmonotonic line sear.h,we pr.ve its global ***,the pr.posed algor.thms have sublinear.conver.ence r.te for.gener.l convex functions,and r.linear.conver.ence r.te for.str.ngly convex *** exper.ments show that the pr.posed methods ar. effective compar.d to the state of the ar.s.

关键词： Gr.dient method Unconstr.ined optimization Nonmonotonic line sear.h Global conver.ence

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Fabr.cating functionally gr.ded Fe-Cr.Co per.anent magnetic alloys via laser.powder.bed fusion

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Jour.al of Ir.n and Steel r.sear.h Inter.ational 2024年第3期31卷 729-737页

作者： ya-zhou He ya-qing Hou Peng Shen Hao Zhang Dong Zhou Hang Su Centr.l Ir.n and Steel r.sear.h Institute Co. Ltd.Beijing 100081China mater.al Digital r.D Center China Iron and Steel Research Institute Group Co.Ltd.Beijing 100081China

Laser.powder.bed fusion(LPBF)in-situ alloying technology offer. the possibility to constr.ct gr.dient mater.als with var.ed str.ctur.s and *** gr.ded Fe-Cr.Co per.anent magnetic alloys wer. fabr.cated by LPBF and in-situ alloying mixed powder. of Fe,Cr.and Co *** effects of differ.nt Fe,Cr.and Co contents on the micr.str.ctur.,magnetic pr.per.ies and har.ness of Fe-Cr.Co alloys pr.par.d by LPBF wer. *** as-built Fe-Cr.Co alloys pr.sent a single body-center.d-cubic phase and have a homogeneous distr.bution of *** mechanical pr.per.ies and magnetic pr.per.ies of the compositionally gr.ded sample show a gr.dient *** the incr.ase in Cr.content,the Vicker. har.ness of the sample incr.ases,and the satur.tion magnetization of the sample *** optimal magnetic pr.per.ies in an isotr.pic state ar. given as coer.ivity HcB=21.65 kA/m,r.manence Br.0.70 T and ener.y pr.duct(BH)_(max)=5.35 kJ/m^(3),which ar. compar.ble to or.higher.than the r.por.ed magnetic pr.per.ies in an isotr.pic state pr.par.d by tr.ditional powder.*** in-situ alloying technology has the potential to fur.her.explor. Fe-Cr.Co magnetic mater.als,such as those consisting of multiple or.mor. constituent elements,and to maximize the compositional flexibility of magnetic mater.als.

关键词： Fe-Cr.Co alloy Laser.powder.bed fusion In-situ alloying Functional mater.al magnetic pr.per.y

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Anti-cor.osive and highly r.ver.ible zinc metal anode enabled by the phenolic r.sin coating

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r.r. metals 2024年第5期43卷 2115-2124页

作者： ya-Ping Wang ya-Di yang Shu-Qi Duan Li Wang Jia-Shuo Guo An-Qiang Pan School of mater.als Science and Engineer.ng Hebei University of TechnologyTianjin 300130China Key Labor.tor. of Special Functional mater.als for.Ecological Envir.nment and Infor.ation(Hebei Univer.ity of Technology).ministr. of Education Tianjin 300130China Key Labor.tor. for.New Type of Functional mater.als in Hebei Pr.vince Hebei University of TechnologyTianjin 300130China School of mater.als Science and Engineer.ng Central South UniversityChangsha 410083China

Aqueous zinc-ion batter.es have attr.cted much attention due to their.high theor.tical capacity,low cost high safety,and ***,challenges such as dendr.te gr.wth and side r.actions sever.ly hinder.the electr.chemical per.or.ance of the Zn anode,leading to low Coulombic efficiency(CE)or.even shor. cir.uits Her.in,phenolic r.sin(PF)is used as a pr.tective coating on the sur.ace of the zinc metal *** PF layer.can gr.atly impr.ve the cor.osion r.sistance of the Zn electr.de in the ***,this ar.ificial electr.de/electr.lyte inter.hase also elevates the nucleation bar.ier.and r.str.ins Zn^(2+)2D diffusion,r.gulating the zinc deposition/dissolution *** a r.sult,PF@Zn symmetr.c cells exhibit super.or.per.or.ance than that of bar. Zn symmetr.c cells,achieving a stable and dendr.te-fr.e cycle of 1400 ***,the car.on nanotube mnO_(2)||PF@Zn(CNT/mnO_(2)||PF@Zn)full cell also deliver. a long cycle life with a high-capacity r.tention of about 180.0 m Ah·g^(-1)after.1400 cycles,far.exceeding that of bar. Zn *** wor. pr.vides a facile str.tegy for.achieving a dendr.te-fr.e and r.char.eable zinc anode.

关键词： r.char.eable aqueous batter.es Zn metal anode Phenolic r.sin Anti-cor.osion

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One mor. step to r.alistic CO_(2) r.duction r.actions——geometr.c str.ctur.s evolutions at gas-solid inter.ace

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r.r. metals 2024年第2期43卷 849-852页

作者： ya-Qiang Xie Xin Yu Ting Wang College of the Envir.nment and Ecology Xiamen UniversityXiamen361102China

A r.tional design of copper.Cu)nanocatalyst is cr.tical to the efficient car.on dioxide(CO_(2))conver.ion towar. C1/C2 chemical ***,the lack of actual infor.ation on the vicinal Cu inter.aces hinder. the intr.nsic activitystr.ctur. cor.elation *** with atomic-scale in situ char.cter.zations(AP-STm and synchr.tr.n-based AP-XPS),Par. and co-wor.er. study and identify the adsor.ate-dr.ven mor.hological evolution of Cu nanocluster. on the Cu(997)sur.ace,pr.viding r.al-space evidence for.the cr.tical r.le of vicinal str.ctur.s on Cu *** obser.ed sur.ace r.ughening tr.nds caused by dissociated atomic oxygen and CO adsor.ates subsequently affect the r.sult of successive catalytic r.actions to pr.duce cr.tical inter.ediates,such as car.onate and for.ate,dur.ng the CO_(2)r.duction r.action.

关键词： r.action cr.tical r.tional

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Fixed-Time Anti-Distur.ance Aver.ge-Tr.cking for.multi-Agent Systems Without Velocity measur.ments

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Jour.al of Systems Science & Complexity 2024年第3期37卷 985-1002页

作者： LI Yuling LIU Chenglin ZHANG ya CHEN yangyang Key Labor.tor. of Advanced Pr.cess Contr.l for.Light Industr.(ministr. of Education) Institute of AutomationJiangnan UniversityWuci 214122China School of Automation Southeast UniversityNanjing 210096China

In this paper.the author. tackle a fixed-time aver.ge-tr.cking pr.blem for.multi-agent systems which do not r.quir. velocity measur.ments and ar. affected by exter.al mismatched and matched *** objective r.quir.s the consider.d agents with second-or.er.dynamics to follow the aver.ge value of sever.l time-var.ing r.fer.nce signals,each of which is acquir.d by only one *** of all,the aver.ge value is estimated by using a novel distr.buted aver.ge estimator.in a fixed ***,an or.ginal obser.er.is cr.ated to pr.vide estimated values in a fixed time for.exter.al mismatched and matched distur.ances as well as unmeasur.d velocities of ***,the author. pr.pose a novel fixed-time anti-distur.ance aver.ge-tr.cking pr.tocol with the aid of the obser.er.and a sliding mode *** the end,the feasibility of theor.tical analysis is illustr.ted by some simulation exper.ments.

关键词： Aver.ge-tr.cking contr.l fixed-time algor.thm fixed-time obser.er mismatched distur.bances multi-agent systems velocity measur.ments

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Concentr.tion-dependent effects of r.ductive pulmonar. inhalants on ultr.fine par.icle-induced oxidative str.ss:Insights for.health r.sk assessment

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Envir.nmental Science and Ecotechnology 2024年第3期19卷 118-124页

作者： ya-qi Yu Tong Zhu BIC-ESAT and SKL-ESPC College of Environmental Sciences and EngineeringPeking UniversityBeijing100871PR China School of Envir.nmental Science and Engineer.ng Qingdao UniversityQingdao266071PR China

The impact of r.ductive pulmonar. inhalants on ultr.fine par.icles(UFPs)-induced pulmonar. oxidative str.ss r.mains a cr.cial consider.tion,yet the concentr.tion-dependent effects of these inhalants have r.mained *** we synthesized composite UFPs simulating atmospher.c UFPs,pr.mar.ly composed of metals and *** subjected these UFPs to var.ing concentr.tions(0e7000 mm)of two r.ductive pulmonar. inhalants,N-acetylcysteine and salbutamol,to assess their.influence on oxidative potential,measur.d thr.ugh the dithiothr.itol assay(OP^(DTT)).Simultaneously,we analysed the soluble metal content of UFPs to uncover.potential r.lationships between oxidative potential and metal *** r.sults unveil a dual r.le played by these inhalants in shaping the OPDTT of composite ***,OP^(DTT) gener.lly incr.ased as inhalant concentr.tions r.se fr.m 0 to 300 ***,an intr.guing r.ver.al occur.ed when concentr.tions exceeded 500 mm,r.sulting in a decline in *** to untr.ated UFPs,these inhalants induced pr.motion and inhibition effects within concentr.tion r.nges of 100e500 and>1000 mm,*** no significant cor.elation emer.ed between OP^(DTT) and soluble metal content as inhalant concentr.tions r.nged fr.m 0 to 7000 mm,notewor.hy positive cor.elations emer.ed at lower.inhalant concentr.tions(e.g.,N-acetylcysteine at 0 e300 mm).These findings pr.vide insights into the potential influence of r.ductive pulmonar. inhalants on health r.sks associated with UFP exposur.,fur.her.under.cor.ng the need for.continued r.sear.h in this cr.tical ar.a.

关键词： Concentr.tion-dependent effects Oxidative potential r.ductive pulmonar. inhalants Soluble metals Simulated atmospher.c ultr.fine par.icles

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