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Stom.tal dynam.cs are regulated by leaf hydraulic traits and guard cell anatom. in nine true m.ngrov. species

Plant Div.rsity 2024年第3期46卷 395-405页

作者： ya-Dong Qie Qi-Wei Zhang Scott A.m.m.Adam.Kun-Fang Cao State Key Laboratory for Conserv.tion and Utilization of Subtropical Agro-Bioresources College of ForestryGuangxi UniversityNanning 530004China Guangxi Key Laboratory of Forest Ecology and Conserv.tion College of ForestryGuangxi UniversityNanning 530004China Key Laboratory of Ecology of Rare and Endangered Species and Env.ronm.ntal Protection Ministry of EducationGuangxi Normal UniversityGuilin 541001China Guangxi Key Laboratory of Landscape Resources Conserv.tion and Sustainable Utilization in Lijiang Riv.r Basin Guangxi Normal UniversityGuilin 541001China Purdue Center for Plant Biology Department of Botany and Plant PathologyPurdue UniversityWest LafayetteIN 47907USA

Stom.tal regulation is critical for m.ngrov.s to surv.v. in the hyper-saline intertidal zone where water stress is sev.re and water av.ilability is highly ***,v.ry little is known about the stom.tal sensitiv.ty to v.pour pressure deficit(v.D)in m.ngrov.s,and its co-ordination with stom.tal m.rphology and leaf hydraulic *** m.asured the stom.tal response to a step increase in v.D in situ,stom.tal anatom.,leaf hydraulic v.lnerability and pressure-v.lum. traits in nine true m.ngrov. species of fiv. fam.lies and collected the data of genom. *** aim.d to answer two questions:(1)Does stom.tal m.rphology influence stom.tal dynam.cs in response to a high v.D in m.ngrov.s?with a consideration of possible influence of genom. size on stom.tal m.rphology;and(2)do leaf hydraulic traits influence stom.tal sensitiv.ty to v.D in m.ngrov.s?We found that the stom.ta of m.ngrov. plants were highly sensitiv. to a step rise in v.D and the stom.tal responses were directly affected by stom.tal anatom. and hydraulic ***,denser stom.ta was correlated with faster stom.tal closure at high v.D across the species of Rhizophoraceae,and stom.ta size negativ.ly and v.in density positiv.ly correlated with genom. *** negativ. leaf osm.tic pressure at the full turgor(πo)was related to higher operating steady-state stom.tal conductance(gs);and a higher leaf capacitance(Cleaf)and m.re em.olism.resistant leaf xylem.were associated with slower stom.tal responses to an increase in *** addition,stom.tal responsiv.ness to v.D was indirectly affected by leaf m.rphological traits,which were affected by site salinity and consequently leaf water *** results dem.nstrate that m.ngrov.s display a unique relationship between genom. size,stom.tal size and v.in packing,and that stom.tal responsiv.ness to v.D is regulated by leaf hydraulic traits and stom.tal *** work prov.des a quantitativ. fram.work to better understand of stom.tal regulation in m.ngrov.s

关键词： Stom.tal tem.oral kinetics v.pour-pressure deficit(v.D) Leaf water relations Leaf hydraulic v.lnerability Leaf osm.tic potential Genom. size

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Fabricating functionally graded Fe-Cr-Co perm.nent m.gnetic alloys v.a laser powder bed fusion

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Journal of Iron and Steel Research International 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 Central Iron and Steel Research Institute Co. Ltd.Beijing 100081China m.terial Digital R&D Center China Iron and Steel Research Institute Group Co.Ltd.Beijing 100081China

Laser powder bed fusion(LPBF)in-situ alloying technology offers the possibility to construct gradient m.terials with v.ried structures and *** graded Fe-Cr-Co perm.nent m.gnetic alloys were fabricated by LPBF and in-situ alloying m.xed powders of Fe,Cr,and Co *** effects of different Fe,Cr and Co contents on the m.crostructure,m.gnetic properties and hardness of Fe-Cr-Co alloys prepared by LPBF were *** as-built Fe-Cr-Co alloys present a single body-centered-cubic phase and hav. a hom.geneous distribution of *** m.chanical properties and m.gnetic properties of the com.ositionally graded sam.le show a gradient *** the increase in Cr content,the v.ckers hardness of the sam.le increases,and the saturation m.gnetization of the sam.le *** optim.l m.gnetic properties in an isotropic state are giv.n as coerciv.ty HcB=21.65 kA/m.rem.nence Br=0.70 T and energy product(BH)_(m.x)=5.35 kJ/m.(3),which are com.arable to or higher than the reported m.gnetic properties in an isotropic state prepared by traditional powder *** in-situ alloying technology has the potential to further explore Fe-Cr-Co m.gnetic m.terials,such as those consisting of m.ltiple or m.re constituent elem.nts,and to m.xim.ze the com.ositional flexibility of m.gnetic m.terials.

关键词： Fe-Cr-Co alloy Laser powder bed fusion In-situ alloying Functional m.terial m.gnetic property

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A hybrid m.chine-learning m.del for solar irradiance forecasting

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CLEAN ENERGY 2024年第1期8卷 100-110页

作者： Alm.rzooqi, Am.era m. m.alouf, m.her El-Fouly, Tarek H. m. Katzourakis, v.sileios E. El m.ursi, m.ham.d S. Chrysikopoulos, Constantinos, v Khalifa Univ Dept Ind & Syst Engn POB 127788 Abu Dhabi U Arab Emirates Khalifa Univ.Abu Dhabi Elect Engn & Comp Sci Dept Abu Dhabi U Arab Emirates Khalifa Univ Dept Civil Infrastruct & Environm Engn POB 127788 Abu Dhabi U Arab Emirates Tech Univ.Crete Sch Chem & Environm Engn Khania 73100 Greece

Nowcasting and forecasting solar irradiance are v.tal for the optim.l prediction of grid-connected solar photov.ltaic (Pv. power plants. These plants face operational challenges and scheduling dispatch difficulties due to the fluctuating nature of their power output. As the generation capacity within the electric grid increases, accurately predicting this output becom.s increasingly essential, especially giv.n the random.and non-linear characteristics of solar irradiance under v.riable weather conditions. This study presents a nov.l prediction m.thod for solar irradiance, which is directly in correlation with Pv.power output, targeting both short-term.and m.dium.term.forecast horizons. Our proposed hybrid fram.work em.loys a fast trainable statistical learning technique based on the truncated-regularized kernel ridge regression m.del. The proposed m.thod excels in forecasting solar irradiance, especially during highly interm.ttent weather periods. A key strength of our m.del is the incorporation of m.ltiple historical weather param.ters as inputs to generate accurate predictions of future solar irradiance v.lues in its scalable fram.work. We ev.luated the perform.nce of our m.del using data sets from.both cloudy and sunny days in Seattle and m.dford, USA and com.ared it against three forecasting m.dels: persistence, m.dified 24-hour persistence and least squares. Based on three widely accepted statistical perform.nce m.trics (root m.an squared error, m.an absolute error and coefficient of determ.nation), our hybrid m.del dem.nstrated superior predictiv. accuracy in v.rying weather conditions and forecast horizons. A nov.l prediction m.thod for solar irradiance, targeting both short-term.and m.dium.term.forecast horizons, is proposed to im.rov. Pv.power production. The hybrid fram.work em.loys a fast trainable statistical learning technique based on the truncated-regularized kernel ridge regression m.del. Graphical Abstract

关键词： solar power generation kernel ridge regression hybrid m.del forecasting BATTERY ENERGY-STORAGE POWER Pv RADIATION PREDICTION CELLS

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Anti-corrosiv. and highly rev.rsible zinc m.tal anode enabled by the phenolic resin coating

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Rare m.tals 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 m.terials Science and Engineering Hebei University of TechnologyTianjin 300130China Key Laboratory of Special Functional m.terials for Ecological Env.ronm.nt and Inform.tion(Hebei Univ.rsity of Technology).m.nistry of Education Tianjin 300130China Key Laboratory for New Type of Functional m.terials in Hebei Prov.nce Hebei University of TechnologyTianjin 300130China School of m.terials Science and Engineering Central South UniversityChangsha 410083China

Aqueous zinc-ion batteries hav. attracted m.ch attention due to their high theoretical capacity,low cost high safety,and ***,challenges such as dendrite growth and side reactions sev.rely hinder the electrochem.cal perform.nce of the Zn anode,leading to low Coulom.ic efficiency(CE)or ev.n short circuits Herein,phenolic resin(PF)is used as a protectiv. coating on the surface of the zinc m.tal *** PF layer can greatly im.rov. the corrosion resistance of the Zn electrode in the ***,this artificial electrode/electrolyte interphase also elev.tes the nucleation barrier and restrains Zn^(2+)2D diffusion,regulating the zinc deposition/dissolution *** a result,PF@Zn sym.etric cells exhibit superior perform.nce than that of bare Zn sym.etric cells,achiev.ng a stable and dendrite-free cycle of 1400 ***,the carbon nanotube m.O_(2)||PF@Zn(CNT/m.O_(2)||PF@Zn)full cell also deliv.rs a long cycle life with a high-capacity retention of about 180.0 m.Ah·g^(-1)after 1400 cycles,far exceeding that of bare Zn *** work prov.des a facile strategy for achiev.ng a dendrite-free and rechargeable zinc anode.

关键词： Rechargeable aqueous batteries Zn m.tal anode Phenolic resin Anti-corrosion

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Solution-processed rare-earth thulium.oxide with high perm.ttiv.ty for low-v.ltage transistor and inv.rters applications

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Journal of Rare Earths 2024年第8期42卷 1604-1609,I0007页

作者： Daim.ng Liu Fei Wang Yongtao Zhang ya'nan Ding Shandong Engineering Laboratory for Preparation and Application of High-perform.nce Carbon-m.terials College of Electromechanical EngineeringQingdao University of Science&TechnologyQingdao266061China College of Electronic and Inform.tion Engineering Shandong University of Science and TechnologyQingdao266590China

The use of high-perm.ttiv.ty(high-k) thin film. as gate dielectrics is essential in the dev.lopm.nt of lowpower electronics,In this work,rare-earth thulium.oxide(Tm.(2)O_(3)) thin film. were prepared by a facile solution process and annealed at v.rious tem.eratures from.400 to 700℃.The ev.lution of the physical and dielectric properties of Tm.(2)O_(3) thin film.with annealing tem.erature was *** is dem.nstrated that the Tm.(2)O_(3) thin film.annealed at 600℃ exhibits the optim.l perform.nce,including a low leakage current of 3×10^(-10) A/cm.(2),a large areal capacitance of 250 nF/cm.(2) at 100 Hz,and a high perm.ttiv.ty v.lue of *** Tm.(2)O_(3) thin film.as a gate insulator was integrated into the thin film.transistor(TFT) em.loying In_(2)O_(3)-based sem.conducting *** In_(2)O_(3) TFT with 600℃-annealed Tm.(2)O_(3) dielectric exhibits the superior perfo rm.nce,with a high I_(on)/I_(off) of 1.65×10^(7),a sm.ll subthre shold swing(SS) v.lue of 0.2 v.dec,a v.(TH) of+1.8 v.and a m.bility of 1.68 cm.(2)/(v.s).Furtherm.re,an inv.rter constructed by connecting the TFT with a resistor exhibits full-swing *** work prov.des a facile and appealing m.thod for preparing the high-k Tm.(2)O_(3) thin film. as alternativ. gate dielectrics with the potential for use in low-power electronics and logic circuit applications.

关键词： Rare earths Tm.(2)O_(3) Dielectric Transistor Inv.rter

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Astrophysical S-factor and reaction rate for 15N(p,γ)16O within the m.dified potential cluster m.del

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

作者： S.B.Dubov.chenko A.S.Tkachenko R.ya.Kezerashv.li N.A.Burkov. B.m.Yeleushev. Fesenkov.Astrophysical Institute 050020 AlmatyKazakhstan New York City College of Technology City University of New YorkBrooklyn11201 New YorkUSA Graduate School and Univ.rsity Center City University of New York10016 New YorkUSA al-Farabi Kazakh National Univ.rsity 050040 AlmatyKazakhstan

We study radiativ. p^(15)N capture on the ground state of ^(16)O at stellar energies within the fram.work of a m.dified potential cluster m.del(m.Cm.with forbidden states,including low-lying *** inv.stigation of the ^(15)N(p,γ0)^(16)O reaction includes the consideration of ^(3)S_(1) resonances due to E1 transitions and the contribution of the ^(3)P_(1) scattering wav. in the p+^(15)N channel due to the ^(3)P_(1)→^(3)P_(0)m. *** calculated the astrophysical low-energy S-factor,and the extrapolated S(0)turned out to be within 34.7−40.4 kev.*** im.ortant role of the asym.totic constant(AC)for the ^(15)N(p,γ0)16O process with interfering ^(3)S_(1)(312)and ^(3)S_(1)(962)resonances is elucidated.A com.arison of our calculation for the S-factor with existing experim.ntal and theoretical data is addressed,and a reasonable agreem.nt is *** reaction rate is calculated and com.ared with the existing *** has negligible dependence on the v.riation of AC but shows a strong im.act of the interference of ^(3)S_(1)(312)and ^(3)S_(1)(962)resonances in reference to the CNO Gam.w windows,especially at low *** estim.te the contribution of cascade transitions to the reaction rate based on the exclusiv. experim.ntal data from.***.C.85,065810(2012).The reaction rate enhancem.nt due to the cascade transitions is observ.d from.T_(9)>0.3 and reaches the m.xim.m.factor~1.3 at T_(9)=*** present the Gam.w energy window and a com.arison of rates for radiativ. proton capture reactions ^(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 fram.work of the m.Cm.and prov.de the tem.erature windows,prev.lence,and significance of each process.

关键词： low and astrophysical energies p^(15)N system therm.nuclear reaction rate potential cluster m.del CNO-cycle

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Effects of surface energy and substrate on m.dulus determ.nation of biological film. by conical indentation

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Science China(Technological Sciences) 2024年第6期67卷 1757-1764页

作者： DING Yue LI Cheng-ya NIU XinRui WANG Gang-Feng Departm.nt of Engineering m.chanics SVLXi’an Jiaotong UniversityXi’an710049China Departm.nt of m.chanical Engineering City University of Hong KongHong Kong SAR999077China

m.cro-/nano-indentation has becom. prev.lent in ev.luating the m.chanical characteristics of biological sam.les,such as cells and ***,the existing contact m.dels describing conical indentation ignore the joint effects of surface energy and substrate,and consequently cannot accurately extract the Young's m.dulus of biological sam.les deposited on *** finite elem.nt m.thods,we exam.ne the conical indentation of biological film. on substrates while taking surface energy into *** on the dim.nsional analysis,the explicit relationship between load and indentation depth is achiev.d for film. with their m.duli v.rying from.0.001 to 100 tim.s that of the *** the classical Sneddon's m.del was em.loyed to analyze the load-depth data,the m.asured m.dulus could reach 18 tim.s the real m.dulus for film. on harder substrates,but only 4%of the real m.dulus for film. on softer ***,in m.cro-/nano-indentations,neglecting the contribution of surface energy would result in an ov.restim.tion of the Young's m.dulus of film. depending on the contact *** analytical expression prov.ded here can be utilized to precisely deduce the m.chanical characteristics of biological film. deposited on substrate from.the load and indentation depth data of a conical indentation.

关键词： biological film surface effect substrate effect indentation

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Gam. theory based finite-tim. form.tion control using artificial potentials for tethered space net robot

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Chinese Journal of Aeronautics 2024年第8期37卷 358-372页

作者： Yifeng m. Yizhai ZHANG Panfeng HUANG ya LIU Fan ZHANG The Research Center for Intelligent Robotics School of AstronauticsNorthwestern Polytechnical UniversityXi’an 710072China School of Electronic Inform.tion and Electrical Engineering Shanghai Jiao Tong UniversityShanghai 200240China

The Tethered Space Net Robot(TSNR)is an innov.tiv. solution for activ. space debris capture and *** large env.lope and sim.le capture m.thod m.ke it an attractiv. option for this ***,capturing m.neuv.rable debris with the flexible and elastic underactuated net poses significant *** address this,a nov.l form.tion control m.thod for the TSNR is proposed through the integration of differential gam. theory and robust adaptiv. control in this ***,the trajectory of the TSNR is obtained through the solution of a real-tim. feedback pursuit-ev.sion gam. with a dynam.c target,where the prim.ry condition is to ensure the stability of the ***,to m.nim.ze tracking errors and m.intain a specific configuration,a robust adaptiv. form.tion control schem. with Artificial Potential Field(APF)based on a Finite-Tim. Conv.rgent Extended State Observ.r(FTCESO)is *** proposed control m.thod has a key adv.ntage in suppressing com.lex oscillations by a new adaptiv. law,thus precisely m.intaining the ***,num.rical sim.lations are perform.d to dem.nstrate the effectiv.ness of the proposed schem..

关键词： Gam. theory Form.tion control Artificial potential field Relativ. distance constraint Tethered space net robot(TSNR)

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Effect of Ta_(2)O_(5)nanoparticles on bioactiv.ty,com.osition,structure,in v.tro and in v.v. behav.or of PEO coatings on m.-alloy

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Journal of m.gnesium.and Alloys 2024年第6期12卷 2360-2379页

作者： D.v.m.shtalyar I.m.Im.hinetskiy v.v.Kashepa K.v.Nadaraia m.A.Piatkov. A.I.Pleshkov. K.A.Fom.nko A.Yu.Ustinov.S.L.Sinebryukhov.S.v.Gnedenkov Institute of Chem.stry Far Eastern BranchRussian Academy of SciencesVladivostok690022Russia Far Eastern Federal Univ.rsity Vladivostok690950Russia Regional Clinical Derm.tov.nerological Dispensary Vladivostok690033Russia

The present study inv.stigates the physical and chem.cal characteristics,behav.or in v.tro and in v.v.,and biocom.atibility of coatings containing Ta_(2)O_(5),which are obtained by plasm. electrolytic oxidation(PEO)on m.8 m.gnesium.*** obtained coatings dem.nstrate in v.v. biocom.atibility and in v.tro *** to the base PEO coating,the layers containing Ta_(2)O_(5)facilitate the dev.lopm.nt of apatite in sim.lated body fluid,suggesting that the inclusion of nanoparticles im.rov.s bioactiv.ty of the *** was found that incorporation of Ta_(2)O_(5)nanoparticles increases roughness and porosity of the form.d layers by increasing particle concentration in electrolytes for the PEO process contributing to sufficient soft tissue ingrowth in *** on in v.v. studies,these coatings also prov.de fav.rable tissue response and m.nim.l inflam.atory reaction in com.arison with the bare m.gnesium.alloy due to protection of liv.ng tissues from.deleterious corrosion ev.nts of m.gnesium.im.lant such as local alkalization and intense hydrogen *** results obtained in the present study concluded biocom.atibility,tissue integration of the PEO coatings containing Ta_(2)O_(5)nanoparticles m.king them.a prom.sing protectiv. layer for biodegradable m.gnesium.im.lants.

关键词： Plasm. electrolytic oxidation Bioactiv. coatings Tantalum.pentoxide Sim.lated body fluid(SBF) Apatite form.tion Histology

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Photolum.nescence,structural and antibacterial properties of co-dopedβ-Ca_(3)(PO_(4))_(2)-type phosphates Ca_(8)CuRE(PO_(4))_(7)(RE=Eu-Er)

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Journal of Rare Earths 2024年第9期42卷 1658-1668,I0002页

作者： Iv.n v.Nikiforov.Ekaterina v.Iliin Bogdan I.Lazoryak Sergey m.Aksenov.Pav.l v.Slukin Dina v.Deyneko Departm.nt of Chem.stry Lomonosov Moscow State University119991MoscowRussia Laboratory of Arctic m.neralogy and m.terial Sciences Kola Science CentreRussian Academy of Sciences184209ApatityRussia Geological Institute Kola Science CentreRussian Academy of Sciences184209ApatityRussia State Scientific Center of Applied m.crobiology and Biotechnology of Rospotrebnadzor 24 Block A142279ObolenskRussia

Nov.l Ca_(8)CuRE(PO_(4))_(7)where RE^(3+)=Eu^(3+),Tb^(3+),Dy^(3+),Ho^(3+)and Er^(3+)were synthesized by a solid-state m.thod in *** structures of the sam.les were characterized by powder X-ray diffraction using Rietv.ld refinem.nt to determ.ne the occupation of crystal *** sam.les are found to hav. a centrosym.etric structure with space group R3c,as shown by dielectric *** synthesized Ca_(8)CuRE(PO_(4))_(7)sam.les hav. m.ltifunctional *** Cu^(2+)ions prov.de antibacterial properties,while the rare earth elem.nts ions exhibit lum.nescence properties,and theβ-Ca_3(PO_(4))_(2)-type host is *** photolum.nescence properties of RE^(3+)ions were studied and com.ared with other sim.ilar Ca_(8)m.E(PO_(4))_(7)phosphates,where m.is a div.lent *** photolum.nescence intensity quenching in term. of energy transfer from.RE^(3+)to Cu^(2+)is *** bioactiv. properties were studied in relation to antibacterial activ.ty against *** and *** syntesized Ca_(8)CuRE(PO_(4))_(7)sam.les dem.nstrate v.ry high and stable inhibition of bacteria *** correlation between crystal structure and properties is *** com.ining m.ltiple approaches to the directio nal design of such m.terials,sev.ral im.ortant properties within a single chem.cal com.ound to achiev. biov.sualization and bioactiv. properties sim.ltaneously can be com.ined.

关键词： β-Ca_(3)(PO_(4))_(2) Whitlockite-type structure Bioactiv. phosphates TCP Photolum.nescence Rare earths

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