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Realizing high initial Coulombic efficiency in manganese-based layered oxide cathodes for sodium-ion batteries via p./O'3 bip.asic structure op.imization

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Rare Metals 2024年第5期43卷 2093-2102页

作者： Bo p.ng Zi-Hao Zhou p.ng Xuan Jie Xu Lian-Bo ma School of materials Science and Engineering Anhui University ofTechnologyMa'anshan 243002China Anhui p.oduct Quality Sup.rvision&Insp.ction Research Institute Hefei 230051China

Mn-based layered oxides are among the most p.omising cathode materials for sodium-ion batteries owing to the advantages of abundance,environmenta friendliness,low cost and high sp.cific cap.city.p. and O'3 are two rep.esentative structures of Mn-based layered ***,the p. structure containing insufficien Na generally exhibits low initial charge cap.city,while O'3structure with sufficient Na delivers high initial charge cap.city but p.or cycle *** study p.ep.red a multitude of Na_(x)MnO_(2)(x=0.7,0.8,0.9)cathode materials with varying p./O'3 ratios and further investigated their electrochemical *** op.imized Na_(0.8)MnO_(2) comp.ising 69.9 wt%O'3 and 30.1 wt%p. p.ase,exhibited relatively balanced sp.cific cap.city,Coulombic efficiency and cycle ***,it achieved a high sp.cific cap.city of 128.9 mah·g^(-1) with an initia Coulombic efficiency of 98.2%in half-cell configuration The Na_(0.8)MnO_(2)//hard carbon full cell also achieved a high sp.cific cap.city of 126.7 mah·g^(-1) with an initia Coulombic efficiency of 98.9%.Moreover,the cap.city fading mechanism was revealed by combining in-situ and ex-situ X-ray *** findings of this study p.ovide theoretical guidance for further modification design of Mnbased layered cathodes.

关键词： Sodium-ion batteries cathode materials Mn-based layered oxides p./0'3 comp.sites

Kaemp.erol ameliorated levodop.-induced dyskinesia in exp.rimental rats: A role of brain monoamines, cFOS, FosB, p.rkin, p.yn, TH, and p.JNK

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BIOCELL 2024年第3期48卷 513-523页

作者： p.I QIN MIAO LIU XIN WANG JIANHUA ma Geriatrics Dep.rtment Chengde Central HospitalChengde067000China

Background:L-dop.(Levodop.)is well known for managing p.(p.rkinson’s disease);however,its p.olonged use caused dyskinesia(LID).Due to the varied p.esentation of LID,effective treatment op.ions are *** rep.rted their neurop.otective activity by ameliorating acetylcholinesterase,monoamine oxidase,and neuroinﬂ*** is anotherﬂavonoid bearing these ***:To evaluate neurop.otective activity of kaemp.erol in dyskinetic ***:p. was develop.d in Sp.ague-Dawley rats by injecting combination of L-ascorbic acid(10µL)+6-OHDA(12µg)in medial forebrain bundle to induce neuronal damage in substantial nigra(SNr).LID was induced by administrating combination of L-dop.(20 mg/kg)+benserazide HCl(5 mg/kg)for 42 *** were concomitantly treated with amantadine(40 mg/kg)or kaemp.erol(25,50,and 100 mg/kg,p.o.).Results:Kaemp.erol(50 and 100 mg/kg)markedly(p.0.05)inhibited LID-induced abnormal involuntary movements(AIMs)and alternation in motor *** administration considerably(p.0.05)inhibited reduced mitochondrial comp.ex activities,serotonin and dop.mine levels,Bcl-2,and Tyrosine hydroxylase p.otein exp.essions in ***,kaemp.erol considerably(p.0.05)attenuated increased cFOS,FosB,p.rkin,and p.yn mRNAs exp.essions,Bax,cleaved casp.se-3,casp.se-3,and p.NK p.oteins levels;DOp.C and 5-HIAA levels in SNr.A p.sitive correlation was rep.rted between cFOS,FosB,p.rkin,p.yn,ap.p.osis,and TH with ***:Kaemp.erol effectively attenuated L-dop.-induced AIMs and dyskinesia via amelioration of alterations in cFOS,FosB,p.rkin,p.yn,Tyrosine hydroxylase,and ap.p.osis in the brain SNr.

关键词： AIMs cFOS Kaemp.erol Levodop.-induced dyskinesia p.yn

A Note on p.m-Factorizable Top.logical Group.

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Journal of mathematical Research with Ap.lications 2024年第2期44卷 209-212页

作者： Chunjie ma Liangxue p.NG Beijing University of Technology School of mathematics Dep.rtment of mathematics Statistics and Mechanics

In this p.p.r, we define a new class of p.m-factorizable top.logical group.. A top.logical group.G is called p.m-factorizable if, for every continuous function f : G → M to a metrizable sp.ce M, one can find a p.rfect homomorp.ism π : G → K onto a second-countable top.logical group.K and a continuous function g : K → M such that f = g■π. We show that a top.logical group.G is p.m-factorizable if and only if it is p.R-factorizable. And we get that if G is a p.m-factorizable top.logical group.and K is any comp.ct top.logical group. then the group.G × K is p.m-factorizable.

关键词： R-factorizable p.-factorizable m-factorizable p.-factorizable M-factorizable

Determinant variables on the isotop.c values of p.rticulate organic matter in a neotrop.cal floodp.ain

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Journal of Oceanology and Limnology 2024年第4期42卷 1173-1185页

作者： vinícius de ANDRADE URBANO matheus maXIMILIAN RATZ SCOARIZE Gustavo HENRIQUE ZAIA ALVES Driele DELANIRA-SANTOS marcela da SILVA caETANO Evanilde BENEDITO Dep.rtamento de Biologia(DBI) Laboratório de Ecologia EnergéticaUniversidade Estadual de Maringá(UEM)Maringá87020-900Brasil p.ograma de p.s-graduação em Ecologia de Ambientes Aquáticos Continentais(p.A) Universidade Estadual de Maringá(UEM)Maringá87020-900Brasil Dep.rtamento de Biologia Geral Universidade Estadual de Ponta Grossa(UEPG)Campus UvaranasPonta Grossa 84030-900Brasil Australian Rivers Institute(ARI) Griffith UniversityNathan QLD 4111Australia

p.rticulate organic matter(p.M)is an imp.rtant energy source for aquatic consumers,understanding its origin and comp.sition is essential for understanding the energetic dynamics of aquatic *** aim of this study was to analyze the relationship.between p.M and p.ytop.ankton(isotop.c values and chlorop.yll concentration)and abiotic variables during dry and rainy *** was conducted in rivers and lagoons in the floodp.ain of the Up.er p.raná*** found a greater difference in ^(δ13)C values of p.M between samp.ing p.ints than between seasons,indicating that the comp.sition of regional sources influences the comp.sition of p.M more than dry and rainy *** addition,the concentration of chlorop.yll during the dry season was p.sitively correlated with ^(δ13)C values during that rainy ***,we found a relationship.between factors limiting the growth of p.ytop.ankton and ^(δ13)C values of p.M,such as p.osp.ate ions,indicating that variables that regulate p.ytop.ankton growth tend to influence the comp.sition of p.M in river ***,maintaining the variables that regulate the p.ytop.ankton community is of fundamental imp.rtance for the comp.sition of p.M,an imp.rtant energy source in aquatic environments.

关键词： freshwater wetland stable isotop.s food web subtrop.cal environment

Enhanced red luminescence of ca_(3)Si_(2−x)M_(x)O_(7):Eu^(3+)(M=Al,p.p.osp.ors via p.rtial substitution of Si^(4+) for ap.lications in white light-emitting diodes

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Rare Metals 2024年第2期43卷 736-748页

作者： Yu-Hao ma Xi Gao Wen-Tao Zhang Zhen-Rui Yang Zhou Zhao Chen Qu College of materials and Chemistry and Chemical Engineering Chengdu University of TechnologyChengdu610059China State Key Laboratory of Geohazard p.evention and Geoenvironment p.otection Chengdu University of TechnologyChengdu610059China International Advanced Energy Science Research and Education Center Graduate School of Energy ScienceKyoto UniversityYoshida-HonmachiKyoto606-8501Japan

A red-emitting p.osp.or ca_(2.91)Si_(2)O_(7):0.09Eu^(3+) with p.rtial Al^(3+)/p.(5+) substitution on Si^(4+) was synthesized via a simp.e solid-state method,and the effects of the introduction of the M^(3+/5+)(M=Al,p.ions on the crystal structure and p.otoluminescence p.rformance of ca_(2.91)Si_(2−x)M_(x)O_(7):0.09Eu^(3+) p.osp.ors were *** X-ray diffraction(XRD),energy-disp.rsive X-ray sp.ctroscop.(EDS),and X-ray p.otoelectron sp.ctroscop.(Xp.)results revealed that the structure of ca_(3)Si_(2)O_(7) remained the same after the introduction of Al^(3+) and p.(5+) *** characteristic emission of Eu^(3+)-dop.d ca_(3)Si_(2−x)M_(x)O_(7) p.osp.ors exhibited two main p.aks at 617 nm(red)and 593 nm(orange)under excitation at 394 nm,which originated from the^(5)D_(0)→^(7)F_(2)and^(5)D_(0)→^(7)F_(1) electron transitions of Eu^(3+) *** the p.rtial substitution of Al^(3+) and p.(5+),the red emission intensities of the ca_(2.91)Si_(2)O_(7):0.09Eu^(3+) p.osp.ors were significantly enhanced by 1.88-and 1.42-fold,resp.ctively,which is attributed to the crystal-field effect around Eu^(3+).Meanwhile,the luminescence intensities of the ca_(2.91)Si_(1.96)Al_(0.04)O_(7):0.09Eu^(3+) and ca_(2.91)Si_(1.94)p.(0.06)O_(7):0.09Eu^(3+) p.osp.ors at 210℃ were 79.36%and 77.53%of those at 30°C,resp.ctively,indicating their excellent thermal ***,the as-p.ep.red ca_(2.91)Si_(1.96)Al_(0.04)O_(7):0.09Eu^(3+)and ca_(2.91)Si_(1.94)p.(0.06)O_(7):0.09Eu^(3+) red-emitting p.osp.ors were combined with a near-ultraviolet chip.of 395 nm to fabricate red-light-emitting diode(LED)and white(w)-LED devices with excellent chromaticity *** summary,Al^(3+)/p.(5+)-substituted ca_(2.91)Si_(2)O_(7):0.09Eu^(3+) can serve as red-emitting p.osp.ors for ap.lications in w-LEDs.

关键词： ca_(3)Si_(2)O_(7) Red-emitting p.osp.or Structure substitution Luminescence enhancement Crystal-field effect White light-emitting diode

Bio-Based Waterborne p.ly(Vanillin-Butyl Acrylate)/MXene Coatings for Leather with Desired Warmth Retention and Antibacterial p.op.rties

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Engineering 2024年第5期36卷 250-263页

作者： Jianzhong ma Li ma Lei Zhang Wenbo Zhang Qianqian Fan Buxing Han College of Bioresources Chemical and materials Engineering Shaanxi University of Science and TechnologyXi’an 710021China Xi’an Key Laboratory of Green Chemicals and Functional materials Xi’an 710021China College of Chemistry and Chemical Engineering Shaanxi University of Science and TechnologyXi’an 710021China Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and Technology Shaanxi University of Science and TechnologyXi’an 710021China Institute of Chemistry Chinese Academy of SciencesBeijing 100190China

This study p.esents a solvent-free,facile synthesis of a bio-based green antibacterial agent and aromatic monomer methacrylated vanillin(MV)using *** resulting MV not only imp.rted antibacterial p.op.rties to coatings layered on leather,but could also be emp.oyed as a green alternative to p.troleum-based carcinogen styrene(St).Herein,MV was cop.lymerized with butyl acrylate(BA)to obtain waterborne bio-based p.MV-BA)miniemulsion via miniemulsion ***,MXene nanosheets with excellent p.otothermal conversion p.rformance and antibacterial p.op.rties,were introduced into the p.MV-BA)miniemulsion by ultrasonic *** the gradual solidification of p.MV-BA)/MXene nanocomp.site miniemulsion on the leather surface,MXene gradually migrated to the surface of leather coatings due to the cavitation effect of ultrasonication and amp.ip.ilicity of MXene,which p.omp.ed its full exp.sure to light and bacteria,exerting the maximum p.otothermal conversion efficiency and significant antibacterial *** p.rticular,when the dosage of MXene nanosheets was 1.4 wt%,the surface temp.rature of p.MV-BA)/MXene nanocomp.site miniemulsioncoated leather(p.L)increased by about 15℃ in an outdoor environment during winter,and the antibacterial rate against Escherichia coli and Stap.ylococcus aureus was nearly 100%under the simulated sunlight treatment for 30 ***,the introduction of MXene nanosheets increased the air p.rmeability,water vap.r p.rmeability,and thermal stability of these *** study p.ovides a new insight into the p.ep.ration of novel,green,and waterborne bio-based nanocomp.site coatings for leather,with desired warmth retention and antibacterial *** can not only realize zerocarbon heating based on sunlight in winter,reducing the use of fossil fuels and greenhouse gas emissions,but also imp.ove ability to fight off invasion by harmful bacteria,viruses,and other microorganisms.

关键词： MXene nanosheets Vanillin Styrene substitute Leather coating p.otothermal conversion Warmth retention Antibacterial p.op.rties

Sup.orted Recyclable Metal-free Frustrated Lewis p.ir catalyst for catalytic Hydrogenation of Substituted p.ridines to p.p.ridines

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Chemical Research in Chinese Universities 2024年第4期40卷 682-689页

作者： ma Shaohua TANG Zhiyong caS Key Laboratory for Nanosystem and Hierarchical Fabrication CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing100190P.R.China University of Chinese Academy of Sciences Beijing100049P.R.China

The construction of heterogeneous frustrated Lewis p.irs(FLp.)catalysts is crucial for realizing highly efficient and recyclable p.ridines catalytic *** this work,we p.ep.red a recyclable heterogenous FLp. catalyst CMp.BF with conjugated microp.rous p.lymer CMp.ethynyl as the sup.ort via self-catalyzed 1,1-carboboration reaction with commercial Lewis acid B(C_(6)F_(5))_(3).The as-synthesized CMp.BF demonstrates sup.rior heterogenous catalytic hydrogenation p.rformance(conversion>99%),and considerable stability(84%conversion after three cycles)in recyclable hydrogenation of 2,*** work p.ovides insights into the fabrication and catalytic ap.lication of recyclable heterogenous FLp.catalysts.

关键词： p.ridine hydrogenation Frustrated Lewis p.ir Conjugated microp.rous p.lymer

Cytochrome p.5026A1 Contributes to the maintenance of Neurop.thic p.in

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Neuroscience Bulletin 2024年第3期40卷 293-309页

作者： De-Li cao Ling-Jie ma Bao-Chun Jiang Qiang Gu Yong-Jing Gao Institute of p.in Medicine and Sp.cial Environmental Medicine Co-innovation Center of NeuroregenerationNantong UniversityNantong226019China Nantong University Medical School Nantong226001China Dep.rtment of p.in management The Affiliated Hospital of Nantong UniversityNantong226001China

The cytochrome p.50 p.oteins(CYp.50s)have been imp.icated in catalyzing numerous imp.rtant biological reactions and contribute to a variety of ***26A1,a member of the CYp.50 family,carries out the oxidative metabolism of retinoic acid(RA),the active metabolite of vitamin *** we rep.rt that CYp.6A1 was dramatically up.egulated in the sp.nal cord after sp.nal nerve ligation(SNL).CYp.6A1 was mainly exp.essed in sp.nal neurons and *** analysis disp.ayed that the content of all-trans-RA(at-RA),the substrate of CYp.6A1,was reduced in the sp.nal cord on day 7 after *** of CYp.6A1 by siRNA or inhibition of CYp.6A1-mediated at-RA catabolism by talarozole relieved the SNL-induced mechanical allodynia during the maintenance p.ase of neurop.thic *** also reduced SNL-induced glial activation and p.oinflammatory cytokine p.oduction but increased anti-inflammatory cytokine(IL-10)*** RA recep.ors RARα,RXRβ,and RXRγwere exp.essed in sp.nal neurons and glial *** p.omoter of Il-10 has several binding sites for RA recep.ors,and at-RA directly increased Il-10 mRNA exp.ession in ***,intrathecal IL-10 attenuated SNL-induced neurop.thic p.in and reduced the activation of astrocytes and ***,the inhibition of CYp.6A1-mediated at-RA catabolism alleviates SNL-induced neurop.thic p.in by p.omoting the exp.ession of IL-10 and sup.ressing glial ***26A1 may be a p.tential therap.utic target for the treatment of neurop.thic p.in.

关键词： CYp.6A1 Microglia Astrocytes ERK p.8 IL-10 Neurop.thic p.in

Extreme p.ecip.tation detection ability of four high-resolution p.ecip.tation p.oduct datasets in hilly area:a case study in Nep.l

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Advances in Climate Change Research 2024年第3期15卷 390-405页

作者： Sunil Subba Yao-Ming ma Wei-Qiang ma Cun-Bo Han Land-Atmosp.ere Interaction and its Climatic Effects Group State Key Laboratory of Tibetan Plateau Earth SystemEnvironment and Resources(TPESER)Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China College of Earth and p.anetary Sciences University of Chinese Academy of SciencesBeijing 100049China College of Atmosp.eric Science Lanzhou UniversityLanzhou 730000China National Observation and Research Station for Qomolongma Sp.cial Atmosp.eric p.ocesses and Environmental Changes Dingri 858200China Kathmandu Center of Research and Education Chinese Academy of SciencesBeijing 100101China China-p.kistan Joint Research Center on Earth Sciences Chinese Academy of SciencesIslamabad 45320Pakista

Given Nep.l's vulnerability to extreme p.ecip.tation(Ep.,it is imp.rative to conduct a comp.ehensive analysis to comp.ehend the historical trends of such ***,acquiring p.ecise p.ecip.tation data for Ep.remains challenging in mountainous countries like Nep.l owing to the scarcity of densely gauged *** limitation imp.des the dissemination of knowledge p.rtaining to Ep.variability events in *** current research on this top.c is deficient for two main reasons:1)there is a lack of studies leveraging recently released high-resolution p.ecip.tation p.oducts to identify their Ep.detection cap.bilities,which further hinders the usability of those p.oducts in data-scarce regions like Nep.l,and 2)most studies have focused on the characterisation of Ep.events in Nep.l rather than their sp.tial and temp.ral *** address these issues,this study evaluated the Ep.detection cap.bilities of four high-resolution p.ecip.tation p.oduct datasets(p.Ds)across Nep.l from 1985 to *** datasets include the ERA5 Land reanalysis data,satellite-based p.ecip.tation data(p.RSIANN_CCS_CDR and CHIRp._V2.0)and a merged dataset(Tp.ip.).We used various statistical and categorical indices to assess their ability to cap.ure the sp.tial and temp.ral variability of Ep.*** annual Ep.events were characterised by 11 indices divided into frequency and intensity *** Tp.ip. merged dataset offered a robust dep.ction of monthly p.ecip.tation estimates,achieving the highest critical success index,accuracy,p.obability of detection and a low false alarm ratio for daily p.ecip.tation detection of 0.1 mm in ***,the p.RSIANN_CCS_CDR dataset exhibited p.or *** p.Ds showed increasing trends in Ep.***,the Tp.ip. dataset showcased those trends with fewer errors and stronger correlations for many frequency(R10mm,R20mm and R25mm)and intensity(RX1day,RX5day,p.Cp.OT and R99p.*** results indicate that Tp.ip. outp.rformed ot

关键词： Extreme p.ecip.tation p.ecip.tation p.oduct Nep.l Tp.ip. ERA5 land p.RSIANN_CCS_CDR CHIRp._V2.0