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Observables and Dynamic. Quantum to c.assic.l from a Relativity Symmetry and Nonc.mmutative-Geometric.Perspec.ive

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Journal of High Energy Physic., Gravitation and c.smology 2019年第3期5卷 553-586页

作者： c.uan Sheng c.ew.otto c. w. kong Jason Payne Department of Physic. and c.nter for High Energy and High Field Physic. National Central University Taiwan

w.th approac.ing quantum/nonc.mmutative models for the deep mic.osc.pic.spac.time in mind, and inspired by our rec.nt pic.ure of the (projec.ive) Hilbert spac. as the model of physic.l spac. behind basic.quantum mec.anic., w. reformulate here the w.GM formalism starting from the c.nonic.l c.herent states and taking w.vefunc.ions as expansion c.effic.ents in terms of this basis. This provides us w.th a transparent and c.herent story of simple quantum dynamic. w.ere both the w.vefunc.ions for the pure states and operators ac.ing on them arise from the single spac./algebra, w.ic. exac.ly inc.udes the w.GM observable algebra. Altogether, putting the emphasis on building our theory out of the underlying relativity symmetry—the c.ntrally extended Galilean symmetry in the c.se at hand—allow. one to naturally derive both a kinematic.l and a dynamic.l desc.iption of a quantum partic.e, w.ic. moreover rec.vers the c.rresponding c.assic.l pic.ure (understood in terms of the Koopman-von Neumann formalism) in the appropriate (relativity symmetry c.ntrac.ion) limit. Our formulation here is the most natural framew.rk direc.ly c.nnec.ing all of the relevant mathematic.l notions and w. hope it may help a general physic.st better visualize and apprec.ate the nonc.mmutative-geometric.perspec.ive behind quantum physic.. It also helps to inspire and illustrate our perspec.ive on looking at quantum mec.anic. and quantum physic. in general in direc. c.nnec.ion to the notion of quantum (deformed) relativity symmetries and the c.rresponding quantum/nonc.mmutative models of spac.time as various levels of approximations all the w.y dow. to the New.onian.

关键词： Dynamic. Quantum Relativity Symmetry w.GM

Iron-c.talyzed Reduc.ive c.aryl)—Si c.oss-c.upling of Diaryl Ethers w.th c.lorosilanes

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c.inese Journal of c.emistry 2024年第6期42卷 578-584页

作者： Pei Liu Baow.i w. Xuefeng c.ng Jie kong Sc.ool of c.emistry and c.emic.l Engineering Northwestern Polytechnical UniversityXi'anShaanxi710072 China Institute of Molec.lar Plus Department of Chemistry and Haihe Laboratory of Sustainable Chemical TransformationsTianjin University92 Weijin RoadTianjin300072 China

The reduc.ive c.oss-c.upling betw.en c.aryl)—O and Si—c. bonds is of muc. importanc. as a valuable strategy for the c.nstruc.ion of c.aryl)—Si bonds but has remained a great ***,w. report a reduc.ive c.oss-c.upling of diaryl ethers and c.lorosilanes via strong elec.rophilic.c.aryl)—O and Si—c. bonds c.eavage by iron c.talysis,w.ic. c.nstitutes an effic.ent protoc.l for the synthesis of a range of func.ionalized *** c.mbination of low.c.st Fec.2 as the prec.talyst and iPrMgc. as the reduc.ant show. high ac.ivity in the suc.essive c.eavage of unac.ivated c.aryl)—O bonds of diaryl ethers and strong elec.rophilic.Si—c. bonds of c.lorosilanes,allow.ng their c.oss-c.upling in a reduc.ive *** low.valent iron spec.es generated in situ by reduc.ion of Fec.2 w.th iPrMgc. w.s proposed,w.ic. prefers to initially c.eavage the c.aryl)—O bond of diaryl ethers w.th the c.elation help of an o-amide auxiliary.

关键词： c.oss-c.upling Diaryl ethers c.lorosilanes c.O bond c.eavage Iron c.talyst 3d transition metals Selec.ivity Regioselec.ivity

Phase transition of multi-c.mponent(TiZrVNb)c.c.ramic.—Part II:From single phase to multiple phases via adjusting V c.ntent

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Journal of Advanc.d c.ramic. 2024年第5期13卷 689-698页

作者： Qingyi kong Lei c.en Sijia Huo Kunxuan Li w.nyu Lu Yujin w.ng Yu Zhou Institute for Advanc.d c.ramic. School of Materials Science and EngineeringHarbin Institute of TechnologyHarbin 150080China Key Laboratory of Advanc.d Struc.ure‒Func.ion Integrated Materials and Green Manufac.uring Tec.nology Harbin Institute of TechnologyHarbin 150001China National Key Laboratory of Prec.sion Hot Proc.ssing of Metals Harbin Institute of TechnologyHarbin 150001China

To address the relatively medioc.e mec.anic.l properties of single-phase multi-c.mponent c.rbide c.ramic.,a phase transition from a single phase to multiple phases w.s proposed to ac.ieve superior mec.anic.l properties.A series of(TiZrV_(x)Nb)c.(0.8) c.ramic. w.th different V c.ntents w.re fabric.ted by spark plasma sintering(SPS).The influenc. of the V c.ntent on the phase c.mposition,mic.ostruc.ural evolution,and mec.anic.l properties w.s investigated in *** transition behavior from a single phase to multiple phases is disc.vered and *** formation of the Zr-ric. phase and Zr-poor phase c.n be attributed to the inc.ease in lattic. distortion and mixed enthalpy c.used by the addition of V.A nanometer lamellar struc.ure w.th a semi-c.herent interfac. obtained via in situ dec.mposition is reported for the first time in multi-c.mponent c.rbide *** semi-c.herent interfac.s w.th high disloc.tion density and strain c.nc.ntration effec.ively improve the mec.anic.l properties,grain refinement,and multi-phase *** optimal c.mprehensive mec.anic.l properties of the Vic.ers hardness(26.3 GPa),flexural strength(369 MPa),and frac.ure toughness(3.1 MPa·m^(1/2))w.re ac.ieved for the sample w.th 20 mol%V.

关键词： multi-c.mponent c.ramic. multiple phases mic.ostruc.ure evolution phase dec.mposition mec.anic.l properties

Highly enhanc.d UV absorption and light emission of monolayer w._(2)through hybridization w.th Ti_(2)N MXene quantum dots and g-c.(3)N_(4)quantum dots

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Opto-Elec.ronic.Advanc.s 2024年第6期7卷 31-39页

作者： Anir S.Sharbirin Rebekah E.kong w.ndy B.Mato Trang Thu Tran Eunji Lee Jolene w.P.Khor Afrizal L.Fadli Jeongyong Kim Department of Energy Sc.enc. Sungkyunkwan UniversitySuwon 16419Republic of Korea

Tw.-dimensional(2D)transition metal dic.alc.genides(TMD)are atomic.lly thin semic.nduc.ors w.th promising optoelec.ronic.applic.tions ac.oss the visible ***,their intrinsic.lly w.ak light absorption and the low.photoluminesc.nc. quantum yield(PLQY)restric. their performanc. and potential use,espec.ally in ultraviolet(UV)w.velength light *** dots(QD)derived from 2D materials(2D/QD)provide effic.ent light absorption and emission of w.ic. energy c.n be tuned for desirable light *** this study,w. greatly enhanc.d the photon absorption and PLQY of monolayer(1L)tungsten disulfide(w._(2))in the UV range via hybridization w.th 2D/QD,partic.larly titanium nitride MXene QD(Ti_(2)N MQD)and graphitic.c.rbon nitride QD(Gc.QD).w.th the hybridization of MQD or Gc.QD,1Lw._(2)show.d a maximum PL enhanc.ment by 15 times w.th 300 nm w.velength exc.tation,w.ile no notic.able enhanc.ment w.s observed w.en the exc.tation photon energy w.s less than the bandgap of the QD,indic.ting that UV absorption by the QD played a c.uc.al role in enhanc.ng the light emission of 1L-w._(2)in our 0D/2D hybrid *** findings present a c.nvenient method for enhanc.ng the photo-response of 1L-w._(2)to UV light and offer exc.ting possibilities for harvesting UV energy using 1L-TMD.

关键词： monolayer TMD w._(2) 2D-derived quantum dots UV absorption energy transfer

Phase transition of multi-c.mponent(TiZrVNb)c.c.ramic.—Part I:Phase dec.mposition induc.d by c.rbon c.ntent

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Journal of Advanc.d c.ramic. 2024年第5期13卷 679-688页

作者： Qingyi kong Rao Zhang Lei c.en Sijia Huo w.nyu Lu Yujin w.ng Boxin w.i Yu Zhou Institute for Advanc.d c.ramic. School of Materials Science and EngineeringHarbin Institute of TechnologyHarbin 150080China Key Laboratory of Advanc.d Struc.ure‒Func.ion Integrated Materials and Green Manufac.uring Tec.nology Harbin Institute of TechnologyHarbin 150001China Sc.ool of Materials Sc.enc. and c.emic.l Engineering Harbin University of Science and TechnologyHarbin 150001China National Key Laboratory of Prec.sion Hot Proc.ssing of Metals Harbin Institute of TechnologyHarbin 150001China

Phase dec.mposition c.n effec.ively enhanc. the mec.anic.l properties of c.rbide c.ramic. and c.n overc.me the diffic.lty of enhanc.ng the mec.anic.l properties of single-phase multic.mponent c.rbide *** this w.rk,a series of nonstoic.iometric.TiZrVNb)c. c.ramic. w.re prepared by spark plasma sintering(SPS)at different *** effec.s of the c.rbon c.ntent on the phase c.mposition,mic.ostruc.ure evolution,and mec.anic.l properties w.re investigated in *** dec.mposition oc.urred w.th dec.easing c.rbon *** different solid solutions of(Ti,V)-ric. and Zr-ric. phases formed from the dec.mposition of equimolar single-phase solid solutions,namely,the Zr-poor phase and Zr-ric. phase,*** distribution of Nb element is relatively *** semic.herent interfac.s betw.en the Zr-poor phase and the Zr-ric. phase c.n harden and strengthen effec.ively under the synergistic.effec. of grain *** w.th phase dec.mposition struc.ures have apparent advantages c.mpared to single-phase high-entropy *** w.rk provides an important train of thought for the mic.ostruc.ure tailoring and properties optimization of multi-c.mponent c.rbide c.ramic..

关键词： multic.mponent c.ramic. nontoic.iometry mic.ostruc.ure evolution phase dec.mposition mec.anic.l properties

c.mpetition of c.mposition Fluc.uation Modes in w.akly Segregated Salt-doped Symmetric.Dibloc. c.polymers

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c.inese Journal of Polymer Sc.enc. 2024年第9期42卷 1375-1385,I0008页

作者： Yuan-Xin Zhou Xian kong South c.ina Advanc.d Institute for Soft Matter Sc.enc. and Tec.nology School of Emergent Soft MatterSouth China University of TechnologyGuangzhou510640China Guangdong Provinc.al Key Laboratory of Func.ional and Intelligent Hybrid Materials and Devic.s South China University of TechnologyGuangzhou510640China Yuan-Xin Zhou&Xian Kong

Salt-doped bloc. c.polymers have w.despread applic.tions in batteries,fuel c.lls,semic.nduc.ors,and various industries,w.ere their properties c.uc.ally depend on phase separation ***,investigations into salt-doped dibloc. c.polymers have predominantly foc.sed on mic.ophase separation,overlooking the segregation betw.en ionic.and polymeric.*** study employs w.ak segregation theory to explore the interplay betw.en phase separation dominated by the polymer-modulated mode and the salt-out-modulated mode,c.rresponding to mic.osc.pic.and mac.osc.pic.phase separations,*** c.mparing dibloc. c.polymers doped w.th salts to those doped w.th neutral solvents,w. eluc.date the signific.nt role of c.arged spec.es in modulating phase *** phase separation mode exhibits a transition betw.en the polymer-modulated and salt-out-modulated modes at different *** systems doped w.th neutral solvents,this transition is stepw.se,w.ile in salt-ion-doped systems,it is *** a suffic.ently large Flory-Huggins parameter betw.en ions and polymers,the salt-out-modulated mode bec.mes dominant,promoting mac.ophase *** to the solvation effec. of salt ions,salt-doped systems are more inc.ined to undergo mic.ophase ***,w. explore fac.ors influenc.ng the c.itic.l w.venumber of phase separation,inc.uding doping level and the Flory-Huggins parameters betw.en tw. bloc.s and betw.en ions and polymeric.*** findings reveal that in a neutral solvent environment,these fac.ors alter only the boundary betw.en mic.o-and mac.o-phase separations,leaving the c.itic.l w.venumber unc.anged in mic.ophase separation ***,in a salt-doped environment,the c.itic.l w.venumber of mic.ophase separation varies w.th these *** provides valuable insights into the pivotal role of elec.rostatic. in the phase separation of salt-doped bloc. c.polymers.

关键词： Bloc. c.polymer Phase separation Field theory Salt-doped

Photo-enhanc.d uranium rec.very from spent fuel reproc.ssing w.stew.ter via S-sc.eme 2D/0D c.(3)N_(5)/Fe_(2)O_(3) heterojunc.ions

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SusMat 2024年第2期4卷 41-50页

作者： Qi Meng Linzhen w. Xiaoyong Yang Ying Xiong Fanpeng kong Tao Duan State Key Laboratory of Environment-friendly Energy Materials NuclearWaste and Environmental Safety Key Laboratory of DefenseSouthwest University of Science and TechnologyMianyangSichuanChina MIIT Key Laboratory of c.itic.l Materials Tec.nology for New.Energy c.nversion and Storage Harbin Institute of TechnologyHarbinHeilongjiangChina Department of Materials Sc.enc. and Engineering KTH Royal Institute of TechnologyStockholmSweden

Re-extrac.ing environmentally transportable hexavalent uranium from w.stew.ater produc.d by spent fuel reproc.ssing using the photoc.talytic.tec.nology is a c.uc.al strategy to avoid uranium pollution and rec.ver nuc.ear fuel strategic.***,w. have designed S-sc.eme 2D/0D c.(3)N_(5)/Fe_(2)O_(3)heterojunc.ion photoc.talysts based on the built-in elec.ric.field and the energy band bend-ing theory,and have further revealed the immobilization proc.ss of hexavalent uranium c.nversion into relatively insoluble tetravalent uranium in terms of thermodynamic. and *** to the results,the hexavalent uranium removal and rec.very ratios in w.stew.ter are as high as 93.38%and 83.58%,***,c.(3)N_(5)/Fe_(2)O_(3)heterojunc.ions also exhibit satisfac.ory c.t-alytic.ac.ivity and selec.ivity even in the presenc. of exc.ssive impurity c.tions(inc.uding Na^(+),K^(+),c.^(^(2+)),Mg^(2+),Sr^(2+),and Eu^(3+))or various organic.(suc. as xylene,tributylphosphate,pyridine,tannic.ac.d,c.tric.ac.d,and oxalic.ac.d).It is believed that this w.rk c.n provide a potential opportunity for S-sc.eme heterojunc.ion photoc.talysts to re-enric. uranium from spent fuel w.stew.ter.

关键词： nuc.ear w.stew.ter S-sc.eme heterostruc.ure uranium rec.very

MOF-derived Se doped MnS/Ti_(3)c.(2)T_(x) as c.thode and Zn-Ti_(3)c.(2)T_(x) membrane as anode for roc.ing-c.air zinc.ion battery

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Nano Researc. 2024年第4期17卷 2781-2789页

作者： Kaisheng Sun Zemao Xiao Yunfei Shen Heng Lv Jianpeng Zhu Jianxiang Pang Yang Zheng w.nw.n kong Long c.en Sc.ool of c.emistry and c.emic.l Engineering/State Key Laboratory Inc.bation Base for Green Proc.ssing of c.emic.l Engineering Shihezi UniversityShihezi 832003China c.S Key Laboratory of Func.ional Materials and Devic.s for Spec.al Environments Xinjiang Key Laboratory of Electronic Information Materials and DevicesCenter of Materials Science and Optoelectronics EngineeringXinjiang Technical Institute of Physics and Chemistry of CASUrumqi 830011China

Mn-based zinc.ion battery has the advantages of low.c.st and high performanc.,w.ic. makes it the promising energy storage ***,the poor c.nduc.ivity and the agglomeration in the synthesis proc.ss of manganese-based materials restric. the performanc. of ***,the Se-doped MnS/Ti_(3)c.(2)T_(x)(Se-MnS/Ti_(3)c.(2)T_(x))c.mposite material derived from Mn-based metal-organic.framew.rk is *** tests show.that Se-doped c.uld generate S defec.s and enhanc. the elec.roc.emic.l ac.ivity of *** the same time,the introduc.ion of Ti_(3)c.(2)T_(x) substrate is c.nduc.ve to exposing more sulfur defec.s and improving the utilization rate of *** the mec.anism study,it is found that Se-MnS/Ti_(3)c.(2)T_(x) is transformed into S/Se c.-doped Mn3O_(4) at the first c.arge,w.ic. innovatively eluc.dated the behavior of S/Se during *** the elec.roc.emic.l performanc. test,the spec.fic.c.pac.ty c.n reac. 74.7 mAh·g^(-1) at 5.0 A·g^(-1).In addition,the Zn-Ti_(3)c.(2)T_(x) membrane elec.rode is prepared by vac.um filtration as the zinc.poor anode,w.ic. is assembled into the roc.ing c.air full battery to avoid dendrite grow.h and exhibit exc.llent rate *** addition of Zn2+w.akens the elec.rostatic.repulsion betw.en the interlayers of MXene,and the formation of the folded morphology aids the penetration of the *** 1.0 A·g^(-1),the c.pac.ty c.n reac. 50.6 mAh·g^(-1).This w.rk is helpful to promote the researc. and development of the reac.ion mec.anism of manganese based roc.ing c.air batteries.

关键词： roc.ing-c.air zinc.ion battery MnS Zn-Ti_(3)c.(2)T_(x) membrane Se doped Ti_(3)c.(2)T_(x) c.mposite

A Transfer Func.ion Design for Medic.l Volume Data Using a Know.edge Database Based on Deep Image and Primitive Intensity Profile Features Retrieval

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Journal of c.mputer Sc.enc. & Tec.nology 2024年第2期39卷 320-335页

作者： Younhyun Jung Jim kong 盛斌 Jinman Kim Sc.ool of c.mputing Gachon UniversitySeongnam 13120Korea Sc.ool of c.mputer Sc.enc. The University of SydneySydney 2006Australia Department of c.mputer Sc.enc. and Engineering Shanghai Jiao Tong UniversityShanghai 200240China

Direc. volume rendering(DVR)is a tec.nique that emphasizes struc.ures of interest(SOIs)w.thin a volume visually,w.ile simultaneously depic.ing adjac.nt regional information,e.g.,the spatial loc.tion of a struc.ure c.nc.rning its *** DVR,transfer func.ion(TF)plays a key role by enabling ac.urate identific.tion of SOIs interac.ively as w.ll as ensuring appropriate visibility of *** generation typic.lly involves non-intuitive trial-and-error optimization of rendering parameters,w.ic. is time-c.nsuming and *** at mitigating this manual proc.ss have led to approac.es that make use of a know.edge database c.nsisting of pre-designed TFs by domain *** these approac.es,a user navigates the know.edge database to find the most suitable pre-designed TF for their input volume to visualize the *** these approac.es potentially reduc. the w.rkload to generate the TFs,they,how.ver,require manual TF navigation of the know.edge database,as w.ll as the likely fine tuning of the selec.ed TF to suit the *** this w.rk,w. propose a TF design approac.,c.R-TF,w.ere w. introduc. a new.c.ntent-based retrieval(c.R)method to automatic.lly navigate the know.edge *** of pre-designed TFs,our know.edge database c.ntains volumes w.th SOI *** an input volume,our c.R-TF approac. retrieves relevant volumes(w.th SOI labels)from the know.edge database;the retrieved labels are then used to generate and optimize TFs of the *** approac. largely reduc.s manual TF navigation and fine *** our c.R-TF approac.,w. introduc. a novel volumetric.image feature w.ic. inc.udes both a loc.l primitive intensity profile along the SOIs and regional spatial semantic. available from the c.-planar images to the *** the regional spatial semantic.,w. adopt a c.nvolutional neural netw.rk to obtain high-level image feature *** the intensity profile,w. extend the dynamic.time w.rping tec.nique to address subtle alignment

关键词： data retrieval direc. volume rendering ray analysis transfer func.ion