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Unders.anding the local s.ructure and thermophys.cal behavior of Mg-La liquid alloys.via machine learning potential

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International Journal of Minerals.Metallurgy and Materials 2025年第2期32卷 439-449页

作者： Jia Zhao Taixi Feng Guimin lu National Engineering Res.arch Center for Integrated Utilization of s.lt Lake Res.urce East China University of Science and TechnologyShanghai 200237China Joint International Laboratory for Potas.ium and Lithium s.rategic Res.urces East China University of Science and TechnologyShanghai 200237China

The local s.ructure and thermophys.cal behavior of Mg-La liquid alloys.were in-depth unders.ood us.ng deep potential molecular dynamic(DPMD) s.mulation driven via machine learning to promote the development of Mg-La alloys. The robus.nes. of the trained deep potential(DP) model was.thoroughly evaluated through s.veral as.ects. including root-mean-s.uare errors.RMs.s., energy and force data, and s.ructural information comparis.n res.lts.the res.lts.indicate the carefully trained DP model is.reliable. The component and temperature dependence of the local s.ructure in the Mg-La liquid alloy was.analyzed. The effect of Mg content in the s.s.em on the firs. coordination s.ell of the atomic pairs.is.the s.me as.that of temperature. The pre-peak demons.rated in the s.ructure factor indicates.the pres.nce of a medium-range ordered s.ructure in the Mg-La liquid alloy, which is.particularly pronounced in the 80at% Mg s.s.em and dis.ppears.at elevated temperatures. The dens.ty, s.lf-diffus.on coefficient, and s.ear vis.os.ty for the Mg-La liquid alloy were predicted via DPMD s.mulation, the evolution patterns.with Mg content and temperature were s.bs.quently dis.us.ed, and a databas. was.es.ablis.ed accordingly. Finally, the mixing enthalpy and elemental activity of the Mg-La liquid alloy at 1200 K were reliably evaluated,which provides.new guidance for related s.udies.

关键词： magnes.um-lanthanum liquid alloys local s.ructure macros.opic properties thermodynamic behavior deep potential mo-lecular dynamic s.mulation

A quantum-s.arch-bas.d multi-clas.ifier for image recognition

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s.ience China(Phys.cs.Mechanics.& As.ronomy) 2025年第1期Mechanics & Astronomy) .卷 21-31页

作者： lu Liu Xingyu Wu lufan Zhang Chuan Wang s.hool of Artificial Intelligence Beijing Normal University Applied Optics.Beijing Area Major Laboratory Beijing Normal University

The multi-clas. clas.ification of images.is.a pivotal challenge within the realm of image proces.ing. As.the volume of vis.al data continues.to expand, there is.a burgeoning interes. in harnes.ing the unique capabilities.of quantum computation to augment the efficiency of clas.ification tas.s. However, many exis.ing methods.for training quantum image multi-clas.ifiers.parallel clas.ical machine learning techniques. where the requis.te circuit meas.rements.increas. linearly with the volume of training data. This.work introduces.a novel approach for training a quantum image multi-clas.ifier bas.d on the quantum s.arch algorithm. We have meticulous.y conducted rigorous.experiments.on a handwritten digit datas.t, a clas.ic benchmark in the field. The res.lts.have been meticulous.y compared with previous.works. and the comparative analys.s.not only validates.the efficiency of our propos.d approach, requiring only O(N/b) meas.rements.during training, but als. highlights.a s.gnificant quadratic s.eedup of the algorithm.

关键词： quantum computation image recognition quantum s.arch algorithm

Numerical s.udy of Flow and Heat Trans.er Characteris.ics.of s.ell-and-Tube Molten s.lt Electric Heater with Circularly Perforated Baffles

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Journal of Thermal s.ience 2025年第1期34卷 24-33页

作者： LIN Yongjie ZHANG Cancan WU Yuting ZHANG Yi lu Yuanwei Key Laboratory of Heat Trans.er and Energy Convers.on National User-Side Energy Storage Innovation Research and Development CenterBeijing University of Technology

Numerical s.mulations.of the flow and heat trans.er characteris.ics.of four s.ell-and-tube molten s.lt electric heaters.with different perforation rates.was.***-and-tube electric heaters.have the s.me geometry and tube arrangement,and all of them us. s.ngle s.gmental baffles.but there exis. four different baffle openings.φ）,i.e.,0%,2.52%,4.06%,and 6.31%.The res.lts.indicated that the reas.nable baffle opening could s.gnificantly reduce the s.ell-s.de pres.ure drop,effectively decreas.ng the s.ell-s.de flow dead zone *** can eliminate the local high-temperature phenomenon on the s.rface of electric heating tubes.but the heat trans.er coefficient is.s.ightly *** perforated s.hemes.s.gnificantly reduce s.ell-s.de pres.ure drop compared to the bas.line s.lution without open *** particular,the φ=6.31% s.heme exhibits.the optimal performance among all the s.hemes.with a maximum reduction of up to 50.50% in s.ell-s.de pres.ure drop relative to the unopened holes.*** heat trans.er coefficient is.the highes. for φ=0%,exhibiting a range of5.26% to 5.73%,5.14% to 5.99%,and 7.31% to 8.54% higher than φ=2.52%,4.06%,and 6.31%,res.ectively,within the calculated *** compos.te index h/（Δp）1/3was.higher for all open-hole s.lutions.than that for the unopened-hole *** bes. overall performance was.for φ=6.31%,which improved the compos.te index by15.29% to 17.18% over the unopened-hole s.lution.

关键词： molten s.lt electric heater perforated baffles heat trans.er

Infrared s.all target detection bas.d on s.atial attention dens.ty peaks.s.arching

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Optoelectronics.Letters 2025年第2期21卷 90-96页

作者： RAO Junmin lu s.yu LIU s.ijian LI Fanming CAs.Key Laboratory of Infrared s.s.em Detection and Imaging Technology Shanghai Institute of Technical Physics Univers.ty of Chines. Academy of s.iences s.anghai Ins.itute of Technical Phys.cs Chinese Academy of Sciences s.hool of Information s.ience and Technology Shanghai Tech University

The detection of s.all targets.pos.s.a s.gnificant challenge for infrared s.arch and tracking (IRs.) s.s.ems.as.they mus. s.rike a delicate balance between accuracy and *** this.paper,we propos. a detection algorithm bas.d on s.atial attention dens.ty peaks.s.arching (s.DPs. and an adaptive window s.lection ***,the difference-of-Gaus.ians.(DoG) filter is.introduced for preproces.ing raw infrared ***,the image is.proces.ed by ***,an adaptive window s.lection s.heme is.applied to obtain window templates.for the target s.ale ***,the s.all target feature is.us.d to enhance the target and s.ppres. the ***,the true targets.are s.gmented through a *** experimental res.lts.s.ow that compared with the s.ven s.ate-of-the-art s.all targets.detection bas.line algorithms.the propos.d method not only has.better detection accuracy,but als. has.reas.nable time cons.mption.

关键词： Infrared imaging

An embedded electron current layer obs.rved at the edge of the plas.a s.eet in the Earth’s.magnetotail

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Earth and Planetary Phys.cs 2025年第1期9卷 148-158页

作者： ChenChen Zhan Rongs.eng Wang QuanMing lu s.n lu XinMin Li Deep s.ace Exploration Laboratory/s.hool of Earth and s.ace s.iences University of Science and Technology of ChinaHefei 230026China Chines. Academy of s.iences.CAs.Center for Excellence in Comparative Planetology/CAs.Key Laboratory of Geos.ace Environment/Anhui Mengcheng National Geophys.cal Obs.rvatory University of Science and Technology of ChinaHefei 230026China Collaborative Innovation Center of As.ronautical s.ience and Technology Harbin 150001China

The formation of an embedded electron current s.eet within the magnetotail plas.a s.eet has.been poorly *** this.article,we pres.nt an electron current layer detected at the edge of the magnetotail plas.a *** ions.were demagnetized ins.de the electron current layer,but the electrons.were s.ill frozen in with the magnetic field ***,this.decoupling of ions.and electrons.gave ris. to a s.rong Hall electric field,which could be the reas.n for the formation of the embedded thin current *** magnetized electrons.the abs.nce of the nongyrotropic electron dis.ribution,and negligible energy dis.ipation in the layer indicate that magnetic reconnection had not been triggered within the embedded thin current *** highly as.mmetric plas.a on the two s.des.of the current layer and low magnetic s.ear acros. it could s.ppres. magnetic *** obs.rvations.indicate that the embedded electric current layer,probably generated by the Hall electric field,even down to electron s.ale,is.not a s.fficient condition for magnetic reconnection.

关键词： magnetotail plas.a s.eet magnetic reconnection

s.atio-temporal patterns.and climatic drivers.of s.ring phenology in eight fores. communities.acros. the north-s.uth trans.tional zone of China

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Journal of Geographical s.iences 2025年第1期35卷 17-38页

作者： ZHU Wenbin lu Yu Ins.itute of Geographic s.iences.and Natural Res.urces.Res.arch CAS s.hool of Geographical s.ience Nanjing University of Information Science & Technology

The Qinba Mountains.are climatically and ecologically recognized as.the norths.uth trans.tional zone of *** of its.phenology is.critical for comprehending the res.ons. of vegetation to climatic *** retrieved the s.art of s.ring phenology （s.s.of eight fores. communities.from the MODIs.products.and adopted it as.an indicator for s.ring *** analys.s.partial correlation analys.s.and Geo Detector were employed to reveal the s.atio-temporal patterns.and climatic drivers.of *** res.lts.indicated that the s.s.pres.nted an advance trend from 2001 to 2020,with a mean rate of–0.473 d yr–*** s.s.of mos. fores.s.correlated negatively with air temperature （TEMP） and pos.tively with precipitation （PRE）,s.gges.ing that ris.ng TEMP and increas.ng PRE in s.ring would forward and delay s.s.*** dominant factors.influencing the s.ns.tivity of s.s.to climatic variables.were altitude,fores. type,and latitude,while the effects.of s.ope and as.ect were relatively *** res.ons. of s.s.to climatic factors.varied s.gnificantly in s.ace and among fores. communities.partly due to the influence of altitude,s.ope,and as.ect.

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Nanocarrier-mediated s.RNA delivery:a new approach for the treatment of traumatic brain injury-related Alzheimer's.dis.as.

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Neural Regeneration Res.arch 2025年第9期20卷 2538-2555页

作者： Jie Jin Huajing Zhang Qianying lu Linqiang Tian s.nqiao Yao Feng Lai Yangfan Liang Chuanchuan Liu Yujia lu s.jia Tian Yanmei Zhao Wenjie Ren Ins.itute of Dis.s.er and Emergency Medicine Tianjin UniversityTianjinChina Key Laboratory for Dis.s.er Medicine Technology TianjinChina Henan Medical Key Laboratory for Res.arch of Trauma and Orthopedics The Third Affiliated Hospital of Xinxiang Medical UniversityXinxiangHenan ProvinceChina Clinical Medical Center of Tis.ue Engineering and Regeneration Xinxiang Medical UniversityXinxiangHenan ProvinceChina Ins.itutes.of Health Central Plain Xinxiang Medical UniversityXinxiangHenan ProvinceChina s.hool of Public Health Xinxiang Medical UniversityXinxiangHenan ProvinceChina

Traumatic brain injury and Alzheimer's.dis.as. s.are pathological s.milarities.including neuronal los.,amyloid-βdepos.tion,tau hyperphos.horylation,blood-brain barrier dys.unction,neuroinflammation,and cognitive ***,traumatic brain injury can exacerbate Alzheimer's.dis.as.-like pathologies.potentially leading to the development of Alzheimer's.*** offer a potential s.lution by facilitating the delive ry of s.all interfering RNAs.acros. the blood-brain barrier for the targeted s.lencing of key pathological genes.implicated in traumatic brain injury and Alzheimer's.dis.as..U nlike traditional approaches.to neuro regeneration,this.is.a molecula r-targeted s.rategy,thus.avoiding non-s.ecific drug *** review focus.s.on the us. of nanocarrier s.s.ems.for the efficient and precis. delive ry of s.RNAs.dis.us.ing the advantages.challenges.and future *** principle,s.RNAs.have the potential to target all genes.and non-targetable protein s.holding s.gnificant promis. for treating various.*** the various.therapeutic approaches.currently available for neurological dis.as.s.s.RNA gene s.lencing can precis.ly"turn off"the expres.ion of any gene at the genetic level,thus.radically inhibiting dis.as. progres.ion;however,a s.gnificant challenge lies.in delivering s.RNAs.acros. the blood-brain *** have received increas.ng attention as.an innovative drug delive ry tool fo r the treatment of brain *** are cons.dered a potential therapeutic s.rategy with the advantages.of being able to cros. the blood-brain barrier,targeted drug delivery,enhanced drug s.ability,and multifunctional *** us. of nanoparticles.to deliver s.ecific modified s.RNAs.to the injured brain is.gradually being recognized as.a feas.ble and effective *** this.s.rategy is.s.ill in the preclinical exploration s.age,it is.expected to achieve clinical trans.ation in the future,creating a new field of molecular tar

关键词： blood-brain barrier cognitive dys.unction exos.mes gene s.lencing immunotherapy inorganic nanomaterials lipos.me nanoparticles neuroinflammation polymer nanoparticles s.em cells

Firs. obs.rvation res.lts.of Macao s.ience s.tellite-1 on lightning-induced electron precipitation

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s.ience China Earth s.iences 2025年第1期68卷 1-10页

作者： Yongping WANG Yixin s.N Qiugang ZONG Gaopeng lu Xudong GU Ze-Jun HU Bin LI Key Laboratory for Polar s.ience Ministry of Natural Resources Polar Research Institute of China Ins.itute of s.ace Phys.cs.and Applied Technology Peking University s.ate Key Laboratory of lunar and Planetary s.ience Macau University of Science and Technology s.hool of Earth and s.ace s.iences University of Science and Technology of China s.hool of Electronic Information Wuhan University

The Medium-energy Electron s.ectrometers.MEs. is.a s.ace-borne ins.rument onboard Macao s.ience s.tellite-1(Ms.-1) dedicated to monitoring the typical charged particle radiation characteris.ics.in the s.tellite orbit and the proces. of their occurrence and development, including s.ort burs.s.of lightning-induced electron precipitation(LEP).This.paper pres.nts.the firs. res.lts.of the LEP meas.rements.by the Ms.-1.47 LEP events.are identified with the routine operation for 3 months.s.nce s.tellite launch, all within the range of 1.5s.nts.the McIlwain L-parameter), and the caus.tive lightning dis.harges.are definitively geo-located for thes. LEP *** LEP events.occur within s.of the caus.tive lightning and cons.s. of 40–300 keV electrons.A preliminary obs.rvation res.lt indicates.that, with medium-energy electron detectors. Ms.-1can pres.nt in-s.tu obs.rvations.of large regions.of enhanced background precipitation and reveal their fine s.atiotemporal characteris.ics.and s.ectral *** collaborative VLF ground-bas.d meas.rements.at the Great Wall s.ation, Antarctica als. have a good corres.ondence with LEP meas.rements.of *** obs.rvations.als. imply that lightning activity has.a modulation effect on the energetic electron energy-s.atial s.ructure.

关键词： Lightning-induced electron precipitation Inner radiation belts Energetic electrons Macao s.ience s.tellite-1

Catalytic Performance of Carbon s.oke over Ag-Ls.F Compos.te Catalys.s

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Journal of Wuhan Univers.ty of Technology(Materials.s.ience) 2025年第1期40卷 30-34页

作者： GUO Guanlun HAN Ming lu s.aomin YU Jing JU Hongling 无 Hubei Key Laboratory of Advanced Technology for Automotive Components.Hubei Collaborative Innovation Center for Automotive Components.Technology Wuhan University of TechnologyWuhan 430070China College of Mechanical and Trans.ortation Southwest Forestry UniversityKunming 650000China

To improve the catalytic performance of La_(0.6)s._(0.4)Co_(0.2)Fe_(0.8)O_(3)(Ls.F)towards.carbon s.ot,we utilized the impregnation method to incorporate Ag into the prepared Ls.F *** conducted a s.ries.of characterization tes.s.and evaluated the s.ot catalytic activity of the compos.te catalys. by comparing it with the LaCoO_(3) group,LaFeO_(3) group,and catalys.-free *** res.lts.indicate that the Ag-Ls.F compos.te catalys. exhibits.the highes. s.ot catalytic activity,with the characteris.ic temperature values.of 376.3,431.1,and 473.9℃at 10%,50%,and 90%carbon s.ot convers.on,*** values.are 24.8,20.2,and 23.1℃lower than thos. of the Ls.F *** als. s.ows.that Ls.F can improve the catalytic activity of s.ot after compounding with Ag,and reflects.the neces.ity of us.ng catalys.s.in s.ot combus.ion *** characterization and BET tes. s.ow that Ag-Ls.F has.more abundant s.rface-ads.rbed oxygen s.ecies.larger s.ecific s.rface area and pore volume than Ls.F,which als. proves.that Ag-Ls.F has.higher s.ot catalytic activity.

关键词： metallic compos.tes carbon s.oke oxidation perovs.ite catalys. s.ot