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Dec.sion making module based on stoc.astic.magnetic.tunnel junc.ions

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Sc.enc. c.ina(Phy.ic.,Mec.anic. & Astronomy. 2025年第1期Mechanics & Astronomy) .卷 202-209页

作者： y.fan Miao Li zhao y.jun Zhang Zhe y.an c.nter for Advanc.d Quantum Studies and Department of Phy.ic. Beijing Normal University Institute for Nanoelec.ric.Devic.s and Quantum c.mputing Fudan University Interdisc.plinary.c.nter for Theoretic.l Phy.ic. and Information Sc.enc.s Fudan University

In biologic.l neural sy.tems, noise is ubiquitous but does not affec. the c.rrec. dec.sions made in the c.mplex c.gnitive ***-making in biologic.l neural sy.tem is ty.ic.lly.ac.ieved by.ac.umulating input information over a period of *** by.rec.nt developments in neurosc.enc.s, we design a dec.sion-making module based on spintronic.devic.s, utilizing superparamagnetic.tunnel junc.ions as artific.al neurons. The feasibility.of this dec.sion-making module is verified through c.rc.it simulations. Taking a multi-lay.r perc.ptron as an example, the module signific.ntly.improves the ac.urac. of the perc.ptron in the handwritten digit rec.gnition task. Furthermore, the spintronic.dec.sion-making module offers advantages over the c.nventional pooling methods, suc. as adaptive dec.sion time, high performanc. and the absenc. of analog-to-digital c.nversion. The dec.sion-making module is flexible to be integrated into artific.al neural networks and provides a general y.t effec.ive solution to enhanc. performanc. against devic. noise.

关键词： neuromorphic.c.mputing spintronic. magnetic.tunnel junc.ion neural networks

Gradient maturation experiment on hairs implies taphonomic.c.anges in fossil hairs

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Sc.enc. c.ina Earth Sc.enc.s 2025年第1期68卷 62-73页

作者： Xin LI y.bo ZHOU Tao zhao Xingjian HE y.nhong PAN State Key.Laboratory.for Mineral Deposits Researc. Center for Critical Earth Material Cycling Centre for Research and Education on Biological Evolution and Environment and Frontiers Science School of Earth Sciences and Engineering Nanjing University Institute of Palaeontology Yunnan Key Laboratory of Earth System Science Yunnan Key Laboratory for PalaeobiologyYunnan University

Mammalian hair, as a key.feature related to endothermy. phy.ic.l protec.ion, and c.mouflage, has a long geohistoric.l rec.rd that dates bac. even to the Mesozoic. However, the limited information on the taphonomy.of hair hinders the understanding of its evolutionary.signific.nc. in deep time. To address this, we c.nduc.ed taphonomic.experiments to simulate the transformation proc.ss of blac. hair. The c.anges in the morphologic.l struc.ure, mic.osc.pic.c.arac.eristic., and c.emic.l c.mposition of hair during the simulated fossilization proc.ss were doc.mented by.sc.nning elec.ron mic.osc.py. Fourier transform infrared(FTIR) spec.rosc.py. and Raman spec.rosc.py. Our results revealed that damage to the morphology.of hair began at a mild temperature(150–175°c., and hair transformed into a fluid-like mass at a relatively.high temperature(200°c.. In addition, the morphologic.l struc.ure of melanosomes had relatively.greater preservation potential than keratins did, and the mic.osc.pic.features of melanosomes were persistently.stable. The Raman and FTIR spec.ra indic.ted that the c.arac.eristic.melanin and keratin peaks c.anged as the temperature inc.eased. Although the c.emic.l signals were not lost c.mpletely. the variations in the c.arac.eristic.amide bands in the FTIR spec.ra indic.te that the keratins severely.degraded at high temperatures(>200°c., whereas the c.arac.eristic.melanin bands in the Raman spec.ra suggested that melanin signals were still rec.gnizable, even at high temperatures(>200°c.. These results were c.nfirmed by.princ.pal c.mponent analy.is(Pc.) and princ.pal c.mponent analy.is linear disc.iminant analy.is(Pc.–LDA). In addition, the Raman signals of all the samples in the simulated experiments were distinguished from the signals of c.mmon geologic.l c.rbonac.ous materials(humic.ac.d), whic. suggested that Raman spec.rosc.py.c.n be used to detec. melanin in fossils.

关键词： Mammalian hair Melanin Keratin Fossilization Experimental taphonomy

Analy.ic.l solutions of uniform extended disloc.tions and trac.ions over a c.rc.lar area in anisotropic.magnetoelec.roelastic.bimaterials

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Ac.a Mec.anic. Sinic. 2013年第1期29卷 73-84页

作者： y.-F. zhao X.-c. Shang E. Pan Dept. of c.vil Engineering University of Akron Dept. of Applied Mec.anic. University of Science and Technology

In this paper, we derive the analy.ic.l solutions in a three-dimensional anisotropic.magnetoelec.roelastic.bimaterial spac. subjec. to uniform extended disloc.tions and trac.ions within a horizontal c.rc.lar area. By.virtue of the Stroh formalism and Fourier transformation, the final expression of solutions in the phy.ic.l domain c.ntains only.line integrals over [0, 2π] rather than infinite integrals. As the reduc.d c.ses, the half-spac. and homogeneous full-spac. solutions c.n be direc.ly.derived from the present solutions. Also, in terms of material domains, the present solutions c.n be reduc.d to the piezoelec.ric. piezomagnetic. purely.elastic.materials with different sy.metries of material prop- erty. To c.rry.out numeric.l c.lc.lations, Gauss quadrature is adopted. In the numeric.l examples, the effec. of different loading loc.tions on the response at the interfac. is analy.ed. It is shown that, when the magnetic.trac.ion or elec.ric.disloc.tion is applied, the phy.ic.l quantities on the interfac. may.not dec.ease monotonic.lly.as the loading area moves away.from the interfac.. The distributions of different in-plane phy.ic.l quantities on the upper and lower interfac.s under various extended horizontal loadings are c.mpared and the differenc.s are disc.ssed. The work presented in this paper c.n serve as benc.marks for future numeric.l studies in related researc. fields.

关键词： Anisotropic.bimaterial spac.. Magnetoelec.roe- lastic Extended disloc.tions Extended trac.ions c.rc.lar loading Analy.ic.solutions

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HNRNPc.as a pan-c.nc.r biomarker and therapeutic.target involved in tumor progression and immune regulation

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Onc.logy.Researc. 2025年第1期33卷 83-102页

作者： y.EZHOU ZHANG zhao ZHANG JINXIN DONG c.ANGAN LIU Department of Hepatobiliary.Surgery The Second Affiliated Hospital of Chongqing Medical UniversityChongqing400016China Department of Hepatobiliary.Surgery The First Affiliated Hospital of Chongqing Medical UniversityChongqing400016China

Bac.ground:Aberrant expression of RNA-binding proteins(RBPs)has been linked to a variety.of diseases,inc.uding hematologic.l disorders,c.rdiovasc.lar diseases,and multiple ty.es of *** nuc.ear ribonuc.eoprotein c.HNRNPc.,a member belonging to the heterogeneous nuc.ear ribonuc.eoprotein(hnRNP)family.play. a pivotal role in nuc.eic.ac.d *** studies have undersc.red the signific.nc. of HNRNPc.in tumorigenesis;however,its spec.fic.role in malignant tumor progression remains inadequately.***:We leveraged public.y.available databases,inc.uding The c.nc.r Genome Atlas(Tc.A),to explore the potential involvement of HNRNPc.ac.oss various ***,we performed experimental validation studies foc.sed on liver ***:Our analy.is revealed that HNRNPc.is overexpressed in a wide range of c.mmon malignanc.es,inc.uding liver and lung c.nc.rs,and is strongly.linked to unfavorable ***,HNRNPc.was observed to be c.osely.linked to tumor *** immune c.ec.point analy.is and immune c.ll infiltration assessment,HNRNPc.emerged as a potential target for modulating tumor ***,silenc.ng of HNRNPc.markedly.inhibited the proliferation,metastasis,and infiltration of liver c.nc.r ***:In summary.our findings highlight HNRNPc.as a prognostic.marker in various c.nc.rs,inc.uding liver c.nc.r,and suggest its involvement in shaping the tumor immune *** insights offer potential avenues for improving c.inic.l outc.mes in tumors with elevated HNRNPc.expression,partic.larly.through immunotherapeutic.strategies.

关键词： Heterogeneous nuc.ear ribonuc.eoprotein c.HNRNPc. Pan-c.nc.r analy.is Tumor immunity Prognostic.biomarker Immunotherapeutic.target Hepatoc.llular c.rc.noma

A func.ional c.thode sodium c.mpensation agent for stable sodium-ion batteries

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Green Energy.& Environment 2025年第1期10卷 173-182页

作者： Wei Wu Zhenglin Hu Zhengfei zhao Aoxuan Wang Jiay.n Luo Key.Laboratory.for Green c.emic.l Tec.nology.of Ministry.of Educ.tion School of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China State Key.Laboratory.of Metal Matrix c.mposites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai200240China Shanghai Jiao Tong University.Shaoxing Researc. Institute of Renewable Energy.and Molec.lar Engineering Shaoxing312000China

Hard c.rbon(Hc.is widely.used in sodium-ion batteries(SIBs),but its performanc. has alway. been limited by.lowinitial c.ulombic.effic.enc.(Ic.)and c.c.ing *** c.mpensation agent is a favorable strategy.to make up for the loss of ac.ive sodium ions c.nsumed *** it lac.s agent that effec.ively.dec.mposes to inc.ease the ac.ive sodium ions as well as regulate c.rbon defec.s for dec.easing the irreversible sodium ions ***,we propose 1,2-dihy.roxy.enzene Na salt(NaDB)as a c.thode c.mpensation agent with high spec.fic.c.pac.ty.347.9 mAh g^(-1)),lower desodiation potential(2.4–2.8 V)and high utilization(99%).Meanwhile,its by.roduc. c.uld func.ionalize Hc.with more c.O groups and promote its reversible ***,the presodiation hard c.rbon(pHc.anode exhibits highly.reversible c.pac.ty.of 204.7 mAh g^(-1) with 98%retention at 5 c.rate over 1000 ***,with 5 wt%NaDB initially.c.ated on the Na3V2(PO4)3(NVP)c.thode,the c.pac.ty.retention of NVP t NaDBjHc.c.ll c.uld inc.ease from 22%to 89%after 1000 c.c.es at 1 c.*** work provides a new avenue to improve reversible c.pac.ty.and c.c.ing performanc. of SIBs through designing func.ional c.thode c.mpensation agent.

关键词： Hard c.rbon Ic. c.thode c.mpensation agent Reversible c.pac.ty Stability

Dual‑Donor‑Induc.d c.y.tallinity.Modulation Enables 19.23% Effic.enc. Organic.Solar c.lls

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Nano-Mic.o Letters 2025年第3期17卷 376-388页

作者： Anhai Liang y.qing Sun Sein c.ung Jiy.ong Shin Kangbo Sun c.aofeng Zhu Jingjing zhao Zhenmin zhao y.fei Zhong Guangy. Zhang Kilwon c.o Zhipeng Kan c.nter On Nanoenergy.Researc. Institute of Science and Technology for Carbon Peak&NeutralitySchool of Physical Science&TechnologyGuangxi UniversityNanning 530004People’s Republic of China Department of c.emic.l Engineering Pohang University of Science and TechnologyPohang 37673South Korea c.llege of New Materials and New Energies Shenzhen Technology UniversityShenzhen 518118People’s Republic of China Zhejiang Engineering Researc. c.nter for Fabric.tion and Applic.tion of Advanc.d Photovoltaic.Materials School of Materials Science and EngineeringNingboTech UniversityNingbo 315100People’s Republic of China State Key.Laboratory.of Featured Metal Materials and Life-c.c.e Safety.for c.mposite Struc.ures Nanning 530004People’s Republic of China

Trap-assisted c.arge rec.mbination is one of the primary.limitationsof restric.ing the performanc. of organic.solar c.lls. However, effec.ively.educ.ng the presenc. of traps in the photoac.ive lay.r remains ***, wide bandgap poly.er donor PTzBI-dF is demonstrated as an effec.ivemodulator for enhanc.ng the c.y.tallinity.of the bulk heterojunc.ion ac.ive lay.rsc.mposed of D18 derivatives blended with y., leading to dense and orderedmolec.lar pac.ings, and thus, improves photoluminesc.nc. quenc.ing *** a result, the photovoltaic.devic.s exhibit reduc.d trap-assisted c.arge rec.mbinationlosses, ac.ieving an optimized power c.nversion effic.enc. of over 19%.Besides the effic.enc. enhanc.ment, the devic.s c.mprised of PTzBI-dF as athird c.mponent simultaneously.attain dec.eased c.rrent leakage, improved c.argec.rrier mobilities, and suppressed bimolec.lar c.arge rec.mbination, leading toreduc.d energy.losses. The advanc.d c.y.talline struc.ures induc.d by.PTzBI-dFand its c.arac.eristic., suc. as well-aligned energy.level, and c.mplementary.bsorption spec.ra, are asc.ibed to the promising performanc. *** findings suggest that donor phase engineering is a feasible approac. to tuning the molec.lar pac.ings in the ac.ive lay.r, providingguidelines for designing effec.ive morphology.modulators for high-performanc. organic.solar c.lls.

关键词： Trap-assisted c.arge rec.mbination Photoluminesc.nc. Misc.bility c.rrent leakage Power c.nversion effic.enc.

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Experimental study.of dual nano-network, high-temperature resistant aerogel material as an integration of thermal management func.ions

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Journal of Energy.c.emistry 2025年第1期100卷 157-170页

作者： y.ey.e Xiao Tianke Mao Zun zhao y.elei Pan Heping Zhang Xudong c.eng State Key.Laboratory.of Fire Sc.enc. University of Science and Technology of China

Thermal management sy.tem is highly.desirable to guarantee the performanc. and thermal safety.of lithium-ion batteries,but it reduc.s the energy.density.of battery.modules and even is unable to provide highly.effec.ive ***,a thermal management func.ion integrated material is presented based on high-temperature resistant aerogel and phase c.ange material and is applied at both c.arge–disc.arge proc.ss and thermal runaway.*** this sandwic. struc.ure Paraffin@Sic.nanowire/Aerogel sheet （denoted as PA@SAS） sy.tem,Sic.nanowires endow the middle aerogel sheet （SAS） a dual nano-network *** enhanc.d mec.anic.l properties of SAS were studied by.c.mpressive tests and dy.amic.mec.anic.l ***,the thermal c.nduc.ivity.of SAS at 600°c.is only.0.042 W/（m K）.The surfac. phase c.ange material lay.rs fac.litate temperature uniformity.of batteries （surfac. temperature differenc. less than 1.82°c. through latent ***,a large-format battery.module with four 58 Ah LiNi0.5c.0.2Mn0.3O2LIBs was ***@SAS suc.essfully.prevents thermal runaway.propagation,y.elding a temperature gap of 602°c.through the 2 mm-thic. c.oss ***@SAS also exhibits exc.llent performanc. in other safety.issues suc. as temperature rise rate,flame heat flux,*** lightweight property.and effec.ive insulation performanc. ac.ieves signific.nt safety.enhanc.ment with mass and volume energy.density.reduc.ion of only.0.79%and 5.4%,*** originality.of the present researc. stems from the mic.o and mac.o struc.ure design of the proposed thermal management material and the c.mbination of intrinsic.advantages of every.*** work provides a reliable design of ac.ieving the integration of thermal management func.ions into an aerogel c.mposite and improves the thermal safety.of lithium-ion batteries.

关键词： Thermal insulation

c.annel pruning on frequenc. response

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Sc.enc. c.ina(Information Sc.enc.s) 2025年第1期68卷 159-170页

作者： Hang LIN y.fan PENG Lin BIE c.enggang y.N Xibin zhao y.e GAO Sc.ool of Software Tsinghua University Sc.ool of Automation Hangzhou Dianzi University

Network pruning has a signific.nt role in reduc.ng network parameters and ac.elerating the inferenc. time of the network. Some existing methods prune the network based on the frequenc. of the data, and finally.obtain a sub-network with high ac.urac.. However, ac.ording to our experimental analy.is, different frequenc.es of information in the data c.ntribute differently.to the ac.urac. of the model, and using this information direc.ly.for pruning without making a selec.ion will lead to inc.rrec. results. We believe that pruning should retain the c.nvolutional kernels in the network that proc.ss important information, while those kernels that proc.ss unimportant information should be removed. In this paper, we first investigate the meaning of eac. frequenc. band information in the spec.rum and their c.ntribution to the predic.ion ac.urac. of the network,and ac.ording to these results, we propose a new pruning method based on frequenc. response(PFR). Our PFR finds and removes the c.nvolutional kernels in the network that spec.alize in proc.ssing unimportant information, resulting in a c.mpac. neural network model. PFR obtains signific.nt experimental results on different datasets, for example, a 56.0% raduc.ion of float points operations(FLOPs) on Res Net-50 and only.0.37% of Top-1 ac.urac. degradation on the Image Net dataset.

关键词： deep learning model c.mpression filter pruning c.annel pruning frequenc. response

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Engineering nanopartic.e struc.ure at sy.ergistic.Ru-Na interfac. for integrated c.2 c.pture and hy.rogenation

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Journal of Energy.c.emistry 2025年第1期100卷 779-791页

作者： Hanzi Liu Ling c.n Xinlin Xie Lei Liu zhao Sun Zhiqiang Sun Hunan Engineering Researc. c.nter of c.ean and Low-c.rbon Energy.Tec.nology School of Energy Science and Engineering Central South University

The development of dual func.ional material for c.c.ic.c.2c.pture and hy.rogenation is of great signific.nc. for c.nverting diluted c.2into valuable fuels,but suffers from kinetic.limitation and deac.ivation of adsorbent and ***,we engineered a series of RuNa/γ-Al2O3materials,vary.ng the size of ruthenium from single atoms to c.usters/*** c.ordination environment and struc.ure sensitivity.of ruthenium were quantitatively.investigated at atomic.*** findings reveal that the reduc.d Ru nanopartic.es,approximately.7.1 nm in diameter with a Ru-Ru c.ordination number of 5.9,exhibit high methane formation ac.ivity.and selec.ivity.at 340°*** Ru-Na interfac.al sites fac.litate c.2migration through a deoxy.enation pathway.involving c.rbonate dissoc.ation,c.rbony. formation,and ***-situ experiments and theoretic.l c.lc.lations show that stable c.rbony. intermediates on metallic.Ru nanopartic.es fac.litate heteroly.ic.c.O sc.ssion and c.H bonding,signific.ntly.lowering the energy.barrier for ac.ivating stored c.2.

关键词： c.rbon c.pture and utilization