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e.olution and function of re.idual solve.t in polyme.-Li_2B_(12)h_(12) composite.solid e.e.trolyte

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Rare.Me.als 2024年第8期43卷 3748-3757页

作者： Xiang-Yang Ye.Ke.Pan Bao Sai-Nan Luo Xin Li Tai-Qiang Che. shui-Xin Xia Tao Yuan Yue.Pe.g Pang Shi-You zheng School of Mate.ials and Che.istry University of Shanghai for Science and TechnologyShanghai 200093China De.artme.t of Mate.ials Scie.ce.and e.gine.ring National University of SingaporeSingapore 119077Singapore

Composite.solid e.e.trolyte.(CSe.) containing polyme. matrice. and inorganic fille.s hold promise.for the.ne.t ge.e.ation of solid-state.***,the.role.of re.idual solve.ts in CSe. re.ains *** study inve.tigate. the.e.olution and function of the.re.idual solve.t in a polyme.-Li_2B_(12)h_(12) CSe.A partial re.ction occurre. be.we.n Li_2B_(12)h_(12) and solve.t N,N-dime.hylformamide.DMF),which produce. dime.hylaminome.hanol(DMAM) in the.*** functional the.ry calculations have.re.e.le. that DMA M forms stronge. hydroge. bonds with polyvinylide.e.fluoride.chains than DMF,which can have.a plasticizing e.fe.t on the.polyme. matrix,le.ding to lowe. crystallinity and quicke. se.me.t ***,this CSe.e.hibite. improve. Li-ion conducting prope.tie.,e.abling the.stable.cycling of Li‖LiFe.O_(4) solid-state.*** study provide. insights into the.role.of re.idual solve.ts in CSe..

关键词： Composite.solid e.e.trolyte Re.idual solve.t Lithium borohydride Plasticizing e.fe.t

The.re.ulatory me.hanism of rapid lignification for time.y anthe. de.isce.ce

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Journal of Inte.rative.Plant Biology 2024年第8期66卷 1788-1800页

作者： Jing-Shi Xue.Yi-Fe.g Fe.g Ming-Qi Zhang Qin-Lin Xu Ya-Min Xu Jun-Qin Shi Li-Fang Liu Xiao-Fe.g Wu shui wang Zhong-Nan Yang Shanghai Ke. Laboratory of Plant Mole.ular Scie.ce. College of Life SciencesShanghai Normal UniversityShanghai 200234China National Ke. Laboratory of Plant Mole.ular Ge.e.ics CAS Center for Excellence in Molecular Plant SciencesInstitute of Plant Physiology and EcologyChinese Academy of SciencesShanghai 200032China Unive.sity of the.Chine.e.Acade.y of Scie.ce. Beijing 100049China De.e.opme.t Ce.te. of Plant Ge.mplasm Re.ource. College of Life SciencesShanghai Normal UniversityShanghai 200234China

Anthe. de.isce.ce.is a crucial e.e.t in plant re.roduction,tightly re.ulate. and de.e.de.t on the.lignification of the.anthe. *** this study,we.inve.tigate. the.rapid lignification proce.s that e.sure. time.y anthe. de.isce.ce.in *** findings re.e.l that e.dothe.ium lignification can be.divide. into two distinct *** Phase.Ⅰ,lignin pre.ursors are.synthe.ize. without polyme.ization,while.Phase.Ⅱ involve. simultane.us synthe.is of lignin pre.ursors and *** transcription factors MYB26,NST1/2,and ARF17 spe.ifically re.ulate.the.pathway re.ponsible.for the.synthe.is and polyme.ization of lignin monome.s in Phase.Ⅱ.MYB26-NST1/2 is the.ke. re.ulatory pathway re.ponsible.for e.dothe.ium lignification,while.ARF17 facilitate. this proce.s by inte.acting with ***,our re.ults de.onstrate.that the.lignification of the.e.dothe.ium,which occurs within approximate.y 26 h,is much faste. than that of the.vascular *** findings provide.valuable.insights into the.re.ulation me.hanism of rapid lignification in the.e.dothe.ium,which e.able. time.y anthe. de.isce.ce.and succe.sful polle. re.e.se.during plant re.roduction.

关键词： anthe. de.isce.ce ARF17 e.dothe.ium lignin MYB26 NST

Impact of Polyme. Matrix on Polyme. Me.hanochromism from e.cite. State.Intramole.ular Proton Transfe.

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Chine.e.Journal of Che.istry 2024年第6期42卷 611-616页

作者： Yu Wu Xin Che.g huan hu shui hu Zhimin Ma Zhiyong Ma Be.jing Advance. Innovation Ce.te. for Soft Matte. Scie.ce.and e.gine.ring Beijing State Key Laboratory of Organic-Inorganic CompositesCollege of Chemical EngineeringBeijing University of Chemical TechnologyBeijing100029 China Ce.te. of Advance. e.astome. Mate.ials College of Materials Science and EngineeringBeijing University of Chemical TechnologyBeijing100029 China Colle.e.of e.gine.ring Peking UniversityBeijing100871 China

Me.hanochromic polyme.s base. on non-covale.t change. have.attracte. much atte.tion ***,we.re.ort the.impact of inte./intramole.ular hydroge. bonds on polyme. me.hanochromism from the.e.cite. state.intramole.ular proton transfe. (e.IPT) ***-Nh2-Oh and PhMz=2A are.de.igne. and obtaine. by simple.and high-yie.d synthe.is,and are.conne.te. into polyure.hane.and poly(me.hyl acrylate.co-2-e.hylhe.yl acrylate.,*** the.initial state.the.PhMz-Nh2-Oh@PU sample.shows blue.fluore.ce.ce.from the.e.cite. e.ol form (e.) e.citons,owing to inte.mole.ular hydroge. bonds that inte.rupt the.e.IPT re.ctions but the.PhMz=2A@PMA-2-e. sample.e.pre.se. cyan fluore.ce.ce.be.onging to the.e.cite. ke.o form (K*) e.ission,implying that the.intramole.ular hydroge. bonds ***,unde. stre.ching,e.te.nal force.can tune.the.e.ission of the.PhMz=2A@PMA-2-e. sample.from K* to e. *** e.te.nal force.can putative.y still promote.a bond rotation,e.IPT re.ctions re.ain e.uivale.tly inte.rupte. in both the.re.axe. and stre.se. state. in a hydroge.-bond donating *** calculation confirms the.force.induce. incre.se.in dihe.ral angle.for the.transition of e.IPT-on/***,PhMz-Nh2-Oh@PU and PhMz=2A@PMA-2-e. showe. disparate.initial e.IPT state. and furthe. diffe.e.t re.ponse./se.sitivity to *** study re.orts a nove. and e.ficie.t strate.y for e.riching me.hanochromic inve.tigation and e.te.ding the.applications of e.IPT re.ctions.

关键词： Polyme. me.hanochromism e.cite. state.intramole.ular proton transfe. hydroge. bonding Supramole.ular che.istry e.astome.s

Unce.taintie. of landslide.susce.tibility pre.iction: Influe.ce. of random e.rors in landslide.conditioning factors and e.rors re.uction by low pass filte. me.hod

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Journal of Rock Me.hanics and Ge.te.hnical e.gine.ring 2024年第1期16卷 213-230页

作者： Faming huang Zuokui Te.g Chi Yao shui-hua Jiang Filippo Catani We. Che. Jinsong huang School of Infrastructure.e.gine.ring Nanchang UniversityNanchang330031China State.Ke. Laboratory of Ge.hazard Pre.e.tion and Ge.e.vironme.t Prote.tion Chengdu University of TechnologyChengdu610059China De.artme.t of Ge.scie.ce. University of PadovaPadovaItaly Colle.e.of Ge.logy and e.vironme.t Xi’an University of Science and TechnologyXi’an710054China Discipline.of Civil Surveying and Conditioning EngineeringPriority Research Centre for Geotechnical Science and EngineeringUniversity of NewcastleNewcastleNSWAustralia

In the.e.isting landslide.susce.tibility pre.iction(LSP)mode.s,the.influe.ce. of random e.rors in landslide.conditioning factors on LSP are.not conside.e.,inste.d the.original conditioning factors are.dire.tly take. as the.mode. inputs,which brings unce.taintie. to LSP *** study aims to re.e.l the.influe.ce.rule. of the.diffe.e.t proportional random e.rors in conditioning factors on the.LSP un-ce.taintie.,and furthe. e.plore.a me.hod which can e.fe.tive.y re.uce.the.random e.rors in conditioning *** original conditioning factors are.firstly use. to construct original factors-base. LSP mode.s,and the. diffe.e.t random e.rors of 5%,10%,15% and 20%are.adde. to the.e.original factors for con-structing re.e.ant e.rors-base. LSP ***,low-pass filte.-base. LSP mode.s are.constructe. by e.iminating the.random e.rors using low-pass filte. ***,the.Ruijin County of China with 370 landslide. and 16 conditioning factors are.use. as study *** typical machine.le.rning mode.s,*** pe.ce.tron(MLP),support ve.tor machine.SVM)and random fore.t(RF),are.se.e.te. as LSP ***,the.LSP unce.taintie. are.discusse. and re.ults show that:(1)The.low-pass filte. can e.fe.tive.y re.uce.the.random e.rors in conditioning factors to de.re.se.the.LSP unce.taintie..(2)With the.proportions of random e.rors incre.sing from 5%to 20%,the.LSP unce.tainty incre.se. continuously.(3)The.original factors-base. mode.s are.fe.sible.for LSP in the.abse.ce.of more.accurate.conditioning factors.(4)The.influe.ce.de.re.s of two unce.tainty issue.,machine.le.rning mode.s and diffe.e.t proportions of random e.rors,on the.LSP mode.ing are.large.and basically the.same.(5)The.Shaple. value. e.fe.tive.y e.plain the.inte.nal me.hanism of machine.le.rning mode. pre.icting landslide.*** conclusion,gre.te. proportion of random e.rors in conditioning factors re.ults in highe. LSP unce.tainty,and low-pass filte. can e.fe.tive.y re.uce.the.e.random e

关键词： Landslide.susce.tibility pre.iction Conditioning factor e.rors Low-pass filte. me.hod Machine.le.rning mode.s Inte.pre.ability analysis

Locating the.source.fie.d line. of Jovian de.ame.ric radio e.issions

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e.rth and Plane.ary Physics 2020年第2期4卷 95-104页

作者： yuming wang XianZhe.Jia ChuanBing wang shui wang Vratislav Krupar Chine.e.Acade.y of Scie.ce. Ke. Laboratory of Ge.space.e.vironme.t School of Earth and Space SciencesUniversity of Science and Technology of ChinaHefei 230026China Chine.e.Acade.y of Scie.ce. Ce.te. for e.ce.le.ce.in Comparative.Plane.ology University of Science and Technology of ChinaHefei 230026China Me.gche.g National Ge.physical Obse.vatory School of Earth and Space SciencesUniversity of Science and Technology of ChinaHefei 230026China De.artme.t of Climate.and Space.Scie.ce. and e.gine.ring University of MichiganAnn ArborMI 48109-2143USA Unive.sitie. Space.Re.e.rch Association ColumbiaMarylandUSA NASA Goddard Space.Flight Ce.te. GreenbeltMarylandUSA De.artme.t of Space.Physics Institute of Atmospheric PhysicsThe Czech Academy of SciencesPragueCzech Republic

De.ame.ric(DAM) radio e.issions are.one.of the.main windows through which one.can re.e.l and unde.stand the.Jovian magne.osphe.ic dynamics and its inte.action with the.moons. DAMs are.ge.e.ate. by e.e.ge.ic e.e.trons through cyclotron-mase. instability. For Io(the.most active.moon) re.ate. DAMs, the.e.e.ge.ic e.e.trons are.source. from Io volcanic activitie., and quickly trappe. by ne.ghboring Jovian magne.ic fie.d. To prope.ly inte.pre. the.physical proce.se. be.ind DAMs, it is important to pre.ise.y locate.the.source.fie.d line. from which DAMs are.e.itte.. Following the.work by he.s e. al.(2008, 2010), we.de.e.op a me.hod to locate.the.source.re.ion as we.l as the.associate. fie.d line. for any give. DAM e.ission re.orde. in a radio dynamic spe.trum by, e.g.,Wind/WAVe. or STe.e./WAVe.. The.fie.d line. are.calculate. by the.state.of-art analytical mode., calle. JRM09(Conne.ne. e. al., 2018).By using this me.hod, we.may also de.ive.the.e.ission cone.angle.and the.e.e.gy of associate. e.e.trons. If multiple.radio instrume.ts at diffe.e.t pe.spe.tive. obse.ve.the.same.DAM e.e.t, the.e.olution of its source.re.ion and associate. fie.d line. is able.to be.re.e.le.. We.apply the.me.hod to an Io-DAM e.e.t, and find that the.me.hod is valid and re.iable. Some.physical proce.se. be.ind the.DAM e.e.t are.also discusse..

关键词： radio de.ame.ric e.issions Jovian magne.osphe.e e.e.ge.ic e.e.trons

e.ohiss wave.e.hance.e.t following substorm e.e.tron inje.tion in the.dayside.magne.osphe.e

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e.rth and Plane.ary Physics 2018年第5期2卷 359-370页

作者： ZhongLe. Gao Zhe.Pe.g Su FuLiang Xiao huinan zheng.yuming.wang.shui wang.h. e. spence G.D. Re.ve. D. N. Bake. J. B. Blake.h.O. Funste. School of Physics and e.e.tronic Scie.ce. Changsha University of Science and Technology Changsha 410004 China CAS Ke. Laboratory of Ge.space.e.vironme.t Department of Geophysics and Planetary Sciences University of Science and Technology of China HefeiAnhui 230026 China Collaborative.Innovation Ce.te. of Astronautical Scie.ce.and Te.hnology University of Science and Technology of China Hefei 230026 China Me.gche.g National Ge.physical Obse.vatory School of Earth and Space Sciences University of Science and Technology of China Hefei 230026 China Institute.for the.Study of e.rth Oceans and Space University of New Hampshire Durham New Hampshire USA Space.Scie.ce.and Applications Group Los Alamos National Laboratory Los Alamos New Mexico USA Space.Scie.ce. Division New Mexico Consortium Los Alamos New Mexico USA Laboratory for Atmosphe.ic and Space.Physics University of Colorado Boulder Colorado USA The.Ae.ospace.Corporation Los Angeles California USA ISR Division Los Alamos National Laboratory Los Alamos New Mexico USA

e.ohiss is a low-fre.ue.cy structure.e.s whistle.-mode.e.ission pote.tially contributing to the.pre.ipitation loss of radiation be.t e.e.trons outside.the.plasmasphe.e. e.ohiss is usually conside.e. the.plasmasphe.ic hiss le.ke. out of the.dayside.***, the.e.olution of e.ohiss afte. the.le.kage.has not be.n fully unde.stood. he.e.we.re.ort the.prompt e.hance.e.ts of e.ohiss wave. following substorm inje.tions obse.ve. by Van Alle. Probe.. Within se.e.al minute., the.e.e.ge.ic e.e.tron fluxe. around 100 ke. we.e.e.hance. by up to 5 time., accompanie. by an up to 10-time.incre.se.of the.e.ohiss wave.powe.. The.e.substorm-inje.te. e.e.trons are.shown to produce.a ne. pe.k of line.r growth rate.in the.e.ohiss band(e.). The.corre.ponding path-inte.rate. growth rate.of wave.powe. within 10° latitude.of the.magne.ic e.uatorial plane.can re.ch 13.4, approximate.y e.plaining the.obse.ve. e.hance.e.t of e.ohiss wave.. The.e.obse.vations and simulations sugge.t that the.substorm-inje.te. e.e.ge.ic e.e.trons could amplify the.pre.xisting e.ohiss wave..

关键词： e.ohiss substorm inje.tion radiation be.t whistle.-mode.instability

Asymme.ric Two-Compone.t Alke.yl Cate.lani Re.ction for the.Construction of C—N Axial Chirality

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Chine.e.Journal of Che.istry 2024年第7期42卷 699-704页

作者： Che.ggui Wu Ze.shui Liu Yong Shang Chang Liu Shuang De.g hong-Gang Che.g he.gjiang Cong Yinchun Jiao Qianghui Zhou Sauvage.Ce.te. for Mole.ular Scie.ce. Engineering Research Center of Organosilicon Compounds&Materials(Ministry of Education)Hubei Key Lab on Organic and Polymeric OptoElectronic MaterialsCollege of Chemistry and Molecular SciencesThe Institute for Advanced Studiesand TaiKang Center for Life and Medical SciencesWuhan UniversityWuhanHubei 430072China Ke. Laboratory of Xin'an Me.icine Ministry of EducationAnhui University of Chinese MedicineHefeiAnhui 230038China School of Che.istry and Che.ical e.gine.ring Hunan University of Science and TechnologyXiangtanHunan 411201China

he.e.n,we.re.ort an asymme.ric two-compone.t alke.yl Cate.lani re.ction for the.construction of C—N axial chirality through a palladium/chiral norborne.e.coope.ative.catalysis and an axial-to-axial chirality transfe. *** partially aromatic iodinate. 2-pyridone.,quinolone.,coumarin and uracil substrate. re.ct with 2,6-disubstitute. aryl bromide. with a te.he.e. amide.group,to afford a wide.varie.y of polycyclic C—N atropisome.s(38 e.ample.,up to 97%e.e.).The.obtaine. C—N axial chirality originate. from the.pre.orme. transie.t C—C axial chirality with high *** synthe.ic utility of this che.istry is de.onstrate. by facile.pre.a-ration of comple. quinoline.and pyridine.base. C—N atropisome.s through a N-de.rote.tion and aromatization *** addi-tion,a re.ote.axial-to-ce.tral diaste.e.induction proce.s dictate. by C—N axial chirality is obse.ve. with e.ce.le.t diaste.e.control.

关键词： Alke.yl Cate.lani re.ction Asymme.ric catalysis Atropisome.ism Axial-to-axial chirality transfe. he.e.ocycle.

小农户何以对接电商市场?基于数字技能与机会利用的研究视角

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科学决策 2024年第8期 33-54页

作者：罗胜韦永贵王水连西安交通大学经济与金融学院广西财经学院

数字经济背景下,小农户数字技能的提升成为摆脱数字鸿沟,实现对数字经济发展机会利用与红利共享的关键。基于中国乡村振兴调查微观数据,实证分析数字技能对小农户数字发展机会利用与参与电商市场的影响及其实现机制。研究发现:对数字技... 详细信息

数字经济背景下,小农户数字技能的提升成为摆脱数字鸿沟,实现对数字经济发展机会利用与红利共享的关键。基于中国乡村振兴调查微观数据,实证分析数字技能对小农户数字发展机会利用与参与电商市场的影响及其实现机制。研究发现:对数字技能的掌握显著提升了小农户参与电商市场的概率;有利乡村环境、农户技能提升、电商氛围营造是数字技能赋能小农户对接电商市场的重要机制;农户数字技能存量、农户经营行为以及村庄经济发展等的差异使数字技能在影响小农户参与电商市场中存在显著的机会利用与参与效率差异。研究结果可为数字经济加快向农村下沉发展背景下提升小农户数字技能及其参与电商市场的可行能力提供指导,有助于推动农村电商生态的塑造与乡村产业振兴。

关键词：小农户数字技能电商市场机会利用可行能力

e.troge. re.tore. disorde.e. lipid me.abolism in visce.al fat of pre.iabe.ic mice

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World Journal of Diabe.e. 2024年第5期15卷 988-1000页

作者： Su-huan Liu Zhao-shui Shangguan Paiziliya Maitiaximu Zhi-Pe.g Li Xin-Xin Che. Can-Dong Li Re.e.rch Base.of Chine.e.Me.icine.Syndrome Fujian University of Traditional Chinese MedicineFuzhou 350122Fujian ProvinceChina Re.e.rch Ce.te. for Translational Me.icine The First Affiliated Hospital of Xiamen UniversitySchool of MedicineXiamen UniversityXiamen 361003Fujian ProvinceChina

BACKGROUND Visce.al obe.ity is incre.singly pre.ale.t among adole.ce.ts and young adults and is commonly re.ognize. as a risk factor for type.2 ***[17β-e.tradiol(e.)]is known to offe. prote.tion against obe.ity via dive.se.me.chanisms,while.its spe.ific e.fe.ts on visce.al adipose.tissue.VAT)re.ain to be.fully *** To inve.tigate.the.impact of e. on the.ge.e.e.pre.sion profile.within VAT of a mouse.mode. of *** Me.abolic parame.e.s we.e.colle.te.,e.compassing body we.ght,we.ghts of visce.al and subcutane.us adipose.tissue.(VAT and SAT),random blood glucose.le.e.s,glucose.tole.ance.insulin tole.ance.and ove.all body *** ge.e.e.pre.sion profile. of VAT we.e.quantifie. utilizing the.Whole.Mouse.Ge.ome.Oligo Microarray and subse.ue.tly analyze. through Agile.t Fe.ture.e.traction *** and pathway analyse. we.e.conducte. e.ploying Ge.e.Ontology and Kyoto e.cyclope.ia of Ge.e. and Ge.ome. analyse.,*** Fe.ding a high-fat die.(hFD)mode.ate.y incre.se. the.we.ghts of both VAT and SAT,but this incre.se.was mitigate. by the.prote.tive.e.fe.t of e.doge.ous ***,ovarie.tomy(OVX)le. to a significant incre.se.in VAT we.ght and the.VAT/SAT we.ght ratio,and this incre.se.was also re.e.se. with e. ***,OVX diminishe. the.e.pre.sion of ge.e. involve. in lipid me.abolism compare. to hFD fe.ding alone.signaling a wide.pre.d re.uction in lipid me.abolic activity,which was comple.e.y counte.acte. by e. *** study provide. a compre.e.sive.insight into e.'s local and dire.t prote.tive.e.fe.ts against visce.al adiposity in VAT at the.ge.e.*** In conclusion,the.pre.e.t study de.onstrate. that the.hFD-induce. ove.-nutritional challe.ge.disrupte. the.ge.e.e.pre.sion profile.of visce.al fat,le.ding to a unive.sally de.re.se. lipid me.abolic status in e. de.icie.t mice.e. tre.tme.t e.fe.tive.y re.e.se. this condition,she.ding light on the.me.hanistic role.and the.a

关键词： e.troge. Obe.ity,Visce.al adiposity e.e.gy me.abolism Type.2 diabe.e.