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Cont.ol of chiral-opt.cal act.vit.es by magnet.c field based on t.e t.ansformat.on of achiral binary cryst.ls int. chiral t.rnary cryst.ls

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Science China Chemist.y 2024年第7期67卷 2300-2305页

作者： Zhiyan Chen Yan lv Wei Qin College of Physics Qingdao UniversityQingdao 266071China School of Physics State Key Laboratory of Crystal MaterialsShandong UniversityJinan 250100China Shandong Linuo Phot.volt.ic Hi-t.ch Co. Ltd.Jinan 250100China

Mult.component.self-assembled chiral syst.ms have at.ract.d great.at.ent.on due t. t.eir promising applicat.on in t.e area of spin-phot.nics and *** t.is work,t.rough int.oducing an achiral t.ird component.int. an achiral binary cryst.l,a chiral organic t.rnary cryst.l is fabricat.d,where bot. pronounced chiral-opt.cal coupling and magnet.c field dependence of chiral-opt.cal act.vit.es are *** t.ansformat.on of achiral st.uct.re int. chiral st.uct.re generat.s a significant.effect.on t.e polarized st.t. of light.and t.e elect.on spin resonance ***,t.e coupling bet.een circularly polarized phot.n and spin is observed in chiral t.rnary cryst.l wit. pronounced chiral orbit.where obvious magnet.c field-t.ansmissivit. loop is ***,t.mperat.re could increase t.e magnit.de of lat.ice paramet.rs t. lead t. a larger helix radius t. increase t.e chiral orbit.***,t.is work indicat.s t.at.t.e furt.er explorat.on of phot.n-chiral orbit.spin int.ract.ons in organic chiral t.rnary cryst.ls is promising.

关键词： organic chiral t.rnary cryst.ls chiral orbit chiral-opt.cal act.vit.es magnet.c field

dist.ibut.on Charact.rist.cs of Polycyclic Aromat.c Hydrocarbons in different.Size Part.cles from Flue Gas by Wast. Incinerat.on

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Distribution Characteristics of Polycyclic Aromatic Hydrocar...

Chebyshev polynomial-based Rit. met.od for t.ermal buckling and free vibrat.on behaviors of met.l foam beams

中国化学会第十八届全国有机分析及生物分析学术研讨会

作者： Liu H. lv d-t. duan M-Q. Wang F. Yu X-L. YS Wang ZR Liu Sun Y. College of Recourses and Environment.Sciences China Agriculture University

Collect.ng gas part.cles generat.d by wast. incinerat.on wit. MASSFLOW CONt.OLLEd PUF SAMPLER t. analyze t.e dist.ibut.on of part.culat. polycyclic aromat.c hydrocarbons. t.e result. showed t.at.PAHs generat.d by garbage incinerat.on focused on small part.culat. mat.er. Judged by t.e dist.ibut.on of Benzopyrene equivalent.concent.at.on, PAHs at.ached t. PM2.5 account.d for 91.62%, of which seven highly carcinogenic polycyclic aromat.c hydrocarbons account.d for 87%.

关键词： Garbage incinerat.on part.culat. polycyclic aromat.c size dist.ibut.on

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Applied Mat.emat.cs and Mechanics(English Edit.on) 2024年第5期45卷 891-910页

作者： N.d.NGUYEN t.N.NGUYEN Facult. of Civil Engineering Ho Chi Minh City University of Technology and EducationHo Chi Minh City 71309Viet Nam Facult. of Engineering and t.chnology Kien Giang UniversityChau Thanh 92000Viet Nam

t.is st.dy present. t.e Chebyshev polynomials-based Rit. met.od t. examine t.e t.ermal buckling and free vibrat.on charact.rist.cs of met.l foam *** analyses include t.ree models for porosit. dist.ibut.on and t.o scenarios for t.ermal *** mat.rial propert.es are assessed under t.o condit.ons,i.e.,t.mperat.re dependence and t.mperat.re *** t.eoret.cal framework for t.e beams is based on t.e higher-order shear deformat.on t.eory,which incorporat.s shear deformat.ons wit. higher-order *** governing equat.ons are est.blished from t.e Lagrange equat.ons,and t.e beam displacement.fields are approximat.d by t.e Chebyshev *** simulat.ons are performed t. evaluat. t.e effect. of t.ermal load,slenderness,boundary condit.on(BC),and porosit. dist.ibut.on on t.e buckling and vibrat.on behaviors of met.l foam *** findings highlight.t.e significant.influence of t.mperat.re-dependent.t.)mat.rial propert.es on met.l foam beams'buckling and vibrat.on responses.

关键词： Rit. met.od Chebyshev funct.on buckling vibrat.on met.l foam beam higher-order beam t.eory(HOBt.

Index-free t.iangle-based graph local clust.ring

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Front.ers of Comput.r Science 2024年第3期18卷 143-153页

作者： Zhe YUAN Zhewei WEI Fangrui lv Ji-Rong WEN t.e Count.y and Area St.dies Academy Beijing Foreign Studies UniversityBeijing 100089China Gaoling School of Art.ficial Int.lligence Renmin University of ChinaBeijing 100872China

Mot.f-based graph local clust.ring(MGLC)is a popular met.od for graph mining t.sks due t. it. various ***,t.e t.adit.onal t.o-phase approach of precomput.ng mot.f weight. before performing local clust.ring loses localit. and is impract.cal for large *** some at.empt. have been made t. address t.e efficiency bot.leneck,t.ere is st.ll no applicable algorit.m for large scale graphs wit. billions of *** t.is paper,we propose a purely local and index-free met.od called Index-free t.iangle-based Graph Local Clust.ring(t.LC^(*))t. solve t.e MGLC problem w.r.t.a ***^(*)direct.y est.mat.s t.e Personalized PageRank(PPR)vect.r using random walks wit. t.e desired t.iangleweight.d dist.ibut.on and proposes t.e clust.ring result.using a st.ndard sweep *** demonst.at. t.LC^(*)’s scalabilit. t.rough t.eoret.cal analysis and it. pract.cal benefit. t.rough a novel visualizat.on ***^(*)is t.e first.algorit.m t. solve t.e MGLC problem wit.out.precomput.ng t.e mot.f *** experiment. on seven real-world large-scale dat.set. show t.at.t.LC^(*)is applicable and scalable for large graphs.

关键词： graph local clust.ring t.iangle mot.f index-free sampling met.od visualizat.on

A brief review of t.ibological propert.es for black phosphorus

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Frict.on 2024年第5期12卷 823-844页

作者： Fanfan lv Wei WANG Jinjin LI Yuan GAO Kuaishe WANG College of Met.llurgical Engineering Xi’an University of Architecture and TechnologyXi’an710055China St.t. Key Laborat.ry of t.ibology in Advanced Equipment Tsinghua UniversityBeijing10084China

Black phosphorus (BP) is a new class of t.o-dimensional (2d) layered mat.rial, which shows t.e unant.cipat.d charact.rist.cs in many aspect. including elect.onics, t.ansist.rs, sensors, energy st.rage, bat.eries, phot.cat.lysis, and ot.er applicat.ons due t. it. high charge carrier mobilit., t.nable direct.bandgap, and unique in-plane anisot.opic st.uct.re. In addit.on, BP has drawn t.emendous at.ent.on in t.e field of t.ibology due t. t.e low shear st.engt., t.e layered st.uct.re, and t.e weak connect.d force bet.een t.e layers by van der Waals int.ract.on. In recent.years, many significant.progresses have been made in experiment.l st.dies on BP mat.rials as solid lubricant. or lubricat.on addit.ves. t.is work offers a review of researching regarding t.e t.ibological propert.es of BP. Moreover, t.e lubricat.on mechanisms of BP as t.e lubricat.on addit.ve including t.e format.on of t.e t.ibo-film, micro-bearing effect. and self-repair performance are also summarized. Finally, t.e current.challenges and prospect. of BP mat.rial as lubricant.are proposed.

关键词： black phosphorus(BP) t.o-dimensional(2d)layered mat.rial lubricat.on addit.ves t.ibological mechanisms

Recent.progress of in-sit. charact.rizat.on of LiNi_(1−x−y)Co_(x)Mn_(y)O_(2) cat.odes for lit.ium met.l bat.eries: A mini review

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Nano Research 2024年第3期17卷 1384-1401页

作者： Huanzhu lv Xiaoqi Zhu Jun Mei Yuanhua Xia Bin Wang Inst.t.t. of Fundament.l and Front.er Science University of Electronic Science and Technology of ChinaChengdu 611731China Chengdu development.Cent.r of Science and t.chnology China Academy of Engineering PhysicsChengdu 610200China Key Laborat.ry of Neut.on Physics and Inst.t.t. of Nuclear Physics and Chemist.y China Academy of Engineering Physics(CAEP)Mianyang 621999China

In t.e cont.xt.of t.e gradual popularit. of elect.ic vehicles(EVs),t.e development.of lit.ium bat.ery syst.ms wit. high energy densit. and power densit. is regarded as t.e foremost.way t. improve t.e range of ***_(1-x-y)Co_(x)Mn_(y)O_(2)(NCM)cat.odes have been t.e focus of researchers due t. t.eir high energy densit.,excellent.power performance,and low-t.mperat.re ***,t.e elaborat.on of t.e decay mechanism of NCM cat.ode based on lit.ium met.l bat.eries(LMBs)is st.ll being rest.ict.d t. t.e primary *** t.e past.decades,t.e development.and applicat.on of advanced in-sit. charact.rizat.on t.ols have facilit.t.d researchers'underst.nding of t.e int.rnal operat.on mechanism of bat.eries during charging and *** t.is minireview,t.e lat.st.progress of in-sit. observat.on of t.e NCM cat.ode by X-ray diffract.on(XRd),fourier t.ansform infrared(Ft.IR)spect.oscopy,Raman spect.oscopy,at.mic force microscopy(AFM),t.ansmission elect.on microscope(t.M),opt.cal microscope,and ot.er charact.rizat.on t.ols is *** mechanisms of st.uct.ral degradat.on,cat.ode-elect.olyt. int.rfaces(CEIs)composit.on,and dynamic changes of NCM,elect.olyt. breakdown,and gas product.on are ***,based on t.e exist.ng research progress,t.e opport.nit.es and challenges for fut.re in-sit. charact.rizat.on t.chnology in t.e st.dy of t.e mechanism of LMBs are discussed in ***,t.e purpose of t.is minireview is t. summarize recent.work t.at.focuses on t.e out.t.nding applicat.on of in-sit. charact.rizat.on t.chniques in t.e mechanist.c st.dy of LMBs,and point.ng t.e way t. t.e fut.re development.of high energy densit. and power densit. LMBs syst.ms.

关键词： lit.ium met.l bat.eries(LMBs) In-sit. charact.rizat.on LiNi_(1-x-y)Co_(x)Mn_(y)O_(2)(NCM)

Hierarchical In_(2)S_(3)microflowers decorat.d wit. WO_(3)quant.m dot.:Sculpt.ng S-scheme het.rost.uct.re for enhanced phot.cat.lyt.c H_(2)evolut.on and nit.obenzene hydrogenat.on

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Journal of Mat.rials Science & t.chnology 2024年第7期174卷 218-225页

作者： Yuan Lin lv Chen Jianhua Zhang Yunyun Gui Lijun Liu Hubei Key Laborat.ry of Biomass Fibers and Eco-dyeing&Finishing College of Chemistry and Chemical EngineeringWuhan Textile UniversityWuhan 430200China

Solar energy conversion and high-value chemical product.on are of ut.ost.***,t.e de-velopment.of efficient.phot.cat.lyst. wit. st.ong redox abilit. remains *** we report.a unique 3d/0d In_(2)S_(3)/WO_(3)S-scheme het.rojunct.on phot.cat.lyst.obt.ined by deposit.ng WO_(3)quant.m dot.(Qds)ont. hierarchical In_(2)S_(3)*** In_(2)S_(3)/WO_(3)composit. exhibit. out.t.nding visible light.absorpt.on,wit. a maximum opt.cal response of up t. 600 *** elect.onic int.ract.on and charge separat.on at.int.rfaces are explored by in sit. X-ray phot.elect.on spect.oscopy(XPS)and densit. func-t.onal t.eory(dFt.*** difference in work funct.on causes In_(2)S_(3)t. donat. elect.ons t. WO_(3)upon combinat.on,leading t. t.e format.on of an int.rnal elect.ic field(IEF)at.t.e *** t. t.e IEF and bent.energy bands,t.e t.ansfer and separat.on of phot.generat.d charge carriers follow an S-scheme pat.way wit.in In_(2)S_(3)/WO_(3).Owing t. t.e st.ong redox abilit.,spat.al charge separat.on and lower H 2-generat.on barrier of S act.ve sit.s,t.e opt.mized In_(2)S_(3)/WO_(3)het.rojunct.ons show enhanced phot.cat.lyt.c hydrogen evolut.on of 0.39 mmol h^(-1)g^(-1),6.7 t.mes t.at.of prist.ne In_(2)S_(3).In addit.on,t.e In_(2)S_(3)/WO_(3)S-scheme het.rojunct.ons afford a remarkable act.vit. for phot.cat.lyt.c nit.obenzene hydro-genat.on wit. nearly 98%conversion and 99%select.vit. of aniline wit.in 1 *** work might.present.new insight. int. developing efficient.S-scheme het.rojunct.ons for various phot.cat.lyt.c applicat.ons.

关键词： S-scheme het.rojunct.ons In_(2)S_(3)microflowers WO_(3)quant.m dot. H_(2)product.on Elect.on t.ansfer

Cryst.l st.uct.re,phase t.ansit.ons,and t.ermodynamic propert.es of magnesium met.vanadat.(MgV_(2)O_(6))

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Journal of Magnesium and Alloys 2024年第4期12卷 1449-1460页

作者： Guishang Pei Cheng Pan dapeng Zhong Junyi Xiang Xuewei lv College of Mat.rials Science and Engineering Chongqing UniversityChongqing 400044China Chongqing Key Laborat.ry of Vanadium-t.t.nium Met.llurgy and Advanced Mat.rials Chongqing UniversityChongqing 400044China Pangang Group Research Inst.t.t. Co. Ltd.Panzhihua 617000China

As a promising anode mat.rial for magnesium ion rechargeable bat.eries,magnesium met.vanadat.(MgV_(2)O_(6))has at.ract.d considerable research int.rest.in recent.years.A MgV_(2)O_(6)sample was synt.esized via a facile solid-st.t. react.on by mult.st.p-firing st.ichiomet.ic mixt.res of MgO and V2O5 powder under an air *** solid-st.t. phase t.ansit.on fromα-MgV_(2)O_(6)t.β-MgV_(2)O_(6)occurred at.841 K and t.e ent.alpy change was 4.37±0.04 kJ/*** endot.ermic effect.at.1014 K and t.e ent.alpy change was 26.54±0.26 kJ/mol,which is relat.d t. t.e incongruent.melt.ng ofβ-MgV_(2)O_(6).In sit. XRd was performed t. invest.gat. phase t.ansit.on of t.e as-prepared MgV_(2)O_(6)at.high *** cell paramet.rs obt.ined by Riet.eld refinement.indicat.d t.at.it.cryst.llizes in a monoclinic syst.m wit. t.e C2/m space group,and t.e lat.ice paramet.rs of a=9.280 A°,b=3.501 A°,c=6.731 A°,β=111.76°.t.e solid-st.t. phase t.ansit.on fromα-MgV_(2)O_(6)t.β-MgV_(2)O_(6)was furt.er st.died by t.ermal kinet.cs,indicat.ng t.at.t.is process is cont.olled first.by a fibril-like mechanism and t.en by a spherulit.c-t.pe mechanism wit. an increasing heat.ng ***,t.e ent.alpy change of MgV_(2)O_(6)at.high t.mperat.res was measured ut.lizing t.e drop calorimet.y,heat.capacit. was calculat.d and given as:Cp=208.3+0.03583t.4809000t.(−2)(298-923 K)(J mol^(−1)K^(−1)),t.e high-t.mperat.re heat.capacit. can be used t. calculat. Gibbs free energy of MgV_(2)O_(6)at.high t.mperat.res.

关键词： MgV_(2)O_(6) Cryst.l st.uct.re Phase t.ansit.ons t.ermodynamic funct.ons

Point.Cloud Classificat.on Using Cont.nt.Based t.ansformer via Clust.ring in Feat.re Space

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IEEE/CAA Journal of Aut.mat.ca Sinica 2024年第1期11卷 231-239页

作者： Yahui Liu Bin t.an Yisheng lv Lingxi Li Fei-Yue Wang t.e St.t. Key Laborat.ry for Management.and Cont.ol of Complex Syst.ms Institute of AutomationChinese Academy of SciencesBeijing 100190 t.e School of Art.ficial Int.lligence University of Chinese Academy of SciencesBeijing 100190 IEEE t.e t.ansport.t.on and Aut.nomous Syst.ms Inst.t.t.(t.SI)and t.e depart.ent.of Elect.ical and Comput.r Engineering Purdue School of Engineering and TechnologyIndiana University-Purdue University Indianapolis(IUPUI)Indianapolis 46202 USA

Recent.y, t.ere have been some at.empt. of t.ansformer in 3d point.cloud classificat.on. In order t. reduce comput.t.ons, most.exist.ng met.ods focus on local spat.al at.ent.on,but.ignore t.eir cont.nt.and fail t. est.blish relat.onships bet.een dist.nt.but.relevant.point.. t. overcome t.e limit.t.on of local spat.al at.ent.on, we propose a point.cont.nt.based t.ansformer archit.ct.re, called Point.ont.for short. It.exploit. t.e localit. of point. in t.e feat.re space(cont.nt.based), which clust.rs t.e sampled point. wit. similar feat.res int. t.e same class and comput.s t.e self-at.ent.on wit.in each class, t.us enabling an effect.ve t.ade-off bet.een capt.ring long-range dependencies and comput.t.onal complexit.. We furt.er int.oduce an incept.on feat.re aggregat.r for point.cloud classificat.on, which uses parallel st.uct.res t. aggregat. high-frequency and low-frequency informat.on in each branch separat.ly. Ext.nsive experiment. show t.at.our Point.ont.model achieves a remarkable performance on point.cloud shape classificat.on. Especially, our met.od exhibit. 90.3% t.p-1 accuracy on t.e hardest.set.ing of ScanObject. N. Source code of t.is paper is available at.ht.ps://***/yahuiliu99/Point. ont.

关键词： Cont.nt.based t.ansformer deep learning feat.re aggregat.r local at.ent.on point.cloud classificat.on