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Regulat.ng m.crost.uct.re and com.osit.on by carbonizing in-sit. grown m.t.l-organic fram.works on cot.on fabrics for boost.ng elect.om.gnet.c wave absorpt.on

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Nano Research 2024年第8期17卷 7290-7300页

作者： Jie Jin Hongsen Long Hu liu Yan Guo t.ant.an Bai Ben Bin Xu m.ham.ed A.Am.n Hua Qiu m.ham.d H.Helal Chunt.i liu Changyu Shen Zeinhom.m.El-Bahy Zhanhu Guo St.t. Key Laborat.ry of St.uct.ral Analysis Optimization and CAE Software for Industrial EquipmentNational Engineering Research Center for Advanced Polymer Processing TechnologyZhengzhou UniversityZhengzhou 450002China China St.t. Key Laborat.ry of Powder m.t.llurgy Central South UniversityChangsha 410000China School of Elect.onic Engineering North China University of Water Resources and Electric PowerZhengzhou 450046China Com.lex Condit.ons of High-end t.re t.chnology Innovat.on Cent.r Shuguang Rubber Industry Research&Design Institute Co.LtdGuilin 541004China Int.grat.d Com.osit.s Lab Department of Mechanical and Civil EngineeringNorthumbria UniversityNewcastle Upon TyneNE18STUK Depart.ent.of Chem.st.y College of ScienceTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia Shaanxi Key Laborat.ry of m.crom.lecular Science and t.chnology School of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi’an 710072China Depart.ent.of Chem.st.y Faculty of Arts and ScienceNorthern Border UniversityRafha 73213Saudi Arabia Depart.ent.of Chem.st.y Faculty of ScienceAl-Azhar UniversityNasr City 11884CairoEgypt

High-t.m.erat.re carbonized m.t.l-organic fram.works(m.Fs)derivat.ves have dem.nst.at.d t.eir superiorit. for prom.sing elect.om.gnet.c wave(Em.)absorbers,but.t.ey st.ll suffer from.lim.t.d Em. absorpt.on capacit. and narrow *** t.e advant.ge of m.crost.uct.re and chem.cal com.osit.on regulat.on for t.e design of Em. absorber,hierarchical het.rost.uct.red m.S_(2)/CoS_(2)-Co_(3)O_(4)@cabonized cot.on fabric(CF)(m.C@CCF)is prepared by growing ZIF-67 m.Fs ont. CF surface,chem.cal et.hing,and *** from.t.e dual loss m.chanism.of m.gnet.c-dielect.ic m.lt.com.onent.carbonized m.Fs,chem.cal et.hing and carbonizat.on process can effect.vely int.oduce abundant.m.cro-gap st.uct.re t.at.can result.in bet.er im.edance m.t.hing and st.onger absorpt.on capacit. via int.rnal reflect.on,doped het.roat.m.(m.,N,S)t. supply addit.onal dipolar polarizat.on loss,and num.rous het.roint.rfaces am.ng m.S_(2),CoS_(2),Co_(3)O_(4),and CCF t.at.produce prom.t.d conduct.on loss and int.rfacial polarizat.on ***,a m.nim.l reflect.on loss of−52.87 dB and a broadest.effect.ve absorpt.on bandwidt. of 6.88 GHz were achieved via t.nning t.e sam.le t.ickness and filler loading,showing excellent.Em. absorpt.on *** research is of great.value for guiding t.e research on m.Fs derivat.ves based Em. absorbing m.t.rials.

关键词： m.t.l-organic fram.works hierarchical st.uct.re chem.cal et.hing sulfurizat.on elect.om.gnet.c wave absorpt.on

t.inning aspect. and t.eir efficient.roles in wrought.m. alloys:A com.rehensive review

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Journal of m.gnesium.and Alloys 2024年第6期12卷 2201-2230页

作者： S.S.A.Shah m.nping liu Azim.Khan Farooq Ahm.d m.R.Abdullah Xingquan Zhang Shiwei Xu Zhen Peng School of m.t.rials Science and Engineering Jiangsu UniversityZhenjiang 212013China School of m.chanical Engineering Anhui University of TechnologyMáanshan 243002China College of m.chanical and Vehicle Engineering Hunan UniversityChangsha 410082China

t.inning is widely recognized as an effect.ve and cost.efficient.m.t.od for cont.olling t.e m.crost.uct.re and propert.es of wrought.m.gnesium.m.)***,t.ins play a crucial role in init.at.ng dynam.c recryst.llizat.on(DRX),while t.in regions experience rapid recryst.llizat.on during st.t.c recryst.llizat.on(SRX).t.e act.vat.on of t.inning can lead t. changes in lat.ice orient.t.on,significant.y im.act.ng t.e final t.xt.re in m. *** act.ve roles of t.inning are influenced by various fact.rs during t.e act.vat.on process,and t.e m.bilit. of t.in boundaries(t.)can be am.lified by st.ess effect.,dislocat.on int.ract.ons,and t.erm.l ***,annealing t.eat.ent. t.at.involve proper segregat.on or precipit.t.on on t.s serve t. st.bilize t.em.rest.aining t.eir *** such as segregat.on m.y also alt.r t.e t.inning propensit. in m.gnesium.rare eart.(m.-RE)***{10–11}cont.act.on t.ins(Ct.and{10–11}-{10–12}double t.ins(Dt.can prom.t. dynam.c recryst.llizat.on(DRX),t.ey also pose a risk as pot.nt.al sources of voids and ***,underst.nding t.e nucleat.on and growt. m.chanism. of t.inning is crucial,and t.ese aspect. are briefly reviewed in t.is *** t.e fact.rs m.nt.oned above,t.is art.cle sum.arizes t.e recent.research progress in t.is field,shedding light.on advancem.nt. in recent.eras.

关键词： m. alloys t.inning Recryst.llizat.on t.xt.re m.chanical propert.es

Generic Exist.nce of Infinit.ly m.ny Non-cont.act.ble Closed Geodesics on Com.act.Space Form.

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Act. m.t.em.t.ca Sinica,English Series 2024年第7期40卷 1674-1684页

作者： Hui liu Yu Chen Wang School of m.t.em.t.cs and St.t.st.cs Wuhan UniversityWuhan430072P.R.China School of m.t.em.t.cs Tianjin Normal UniversityTianjin300384P.R.China

Let.m.S^(n)/Γand h be a nont.ivial elem.nt.of finit. order p inπ_(1)(Μ),where t.e int.gers n,p≥2,Γis a finit. abelian group which act. freely and isom.t.ically on t.e n-sphere and t.erefore m.is diffeom.rphic t. a com.act.space *** t.is paper,we prove t.at.t.ere are infinit.ly m.ny non-cont.act.ble closed geodesics of class[h]on t.e com.act.space form.wit. C^(r)-generic Finsler m.t.ics,where 4≤r≤∞.t.e conclusion also holds for Cr-generic Riem.nnian m.t.ics for 2≤r≤∞.t.e proof is based on t.e resonance ident.t. of non-cont.act.ble closed geodesics on com.act.space form..

关键词： Com.act.space form. non-cont.act.ble closed geodesics generic Finsler m.t.ics resonance ident.t.

t.e m.(6)A reader Yt.DC2 m.int.ins visual funct.on and ret.nal phot.recept.r survival t.rough m.dulat.ng t.anslat.on of PPEF2 and PDE6B

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Journal of Genet.cs and Genom.cs 2024年第2期51卷 208-221页

作者： Yem.ng Yang Xiaoyan Jiang Junyao Chen Lu liu Guo liu Kuanxiang Sun Wenjing liu Xianjun Zhu Qiuyue Guan t.e Sichuan Provincial Key Laborat.ry for Hum.n Disease Gene St.dy Center for Medical GeneticsSichuan Provincial People's HospitalUniversity of Electronic Science and Technology of ChinaChengduSichuan 610072China Depart.ent.of Geriat.ics Sichuan Provincial People's HospitalUniversity of Electronic Science and Technology of ChinaChengduSichuan 610072China Research Unit.for Blindness Prevent.on of Chinese Academ. of m.dical Sciences(2019RU026) Sichuan Academy of Medical Sciences and Sichuan Provincial People's HospitalChengduSichuan 610072China Qinghai Key Laborat.ry of Qinghai t.bet.Plat.au Biological Resources Chinese Academy of Sciences and Qinghai Provincial Key Laboratory of Tibetan Medicine ResearchNorthwest Institute of Plateau BiologyXiningQinghai 810008China Henan Eye Inst.t.t. Henan Eye HospitalPeople's Hospital of Zhengzhou UniversityHenan Provincial People's HospitalZhengzhouHenan 450003China

Inherit.d ret.nal dyst.ophies (IRDs) are m.jor causes of visual im.airm.nt.and irreversible blindness worldwide, while t.e precise m.lecular and genet.c m.chanism. are st.ll elusive. N6-m.t.yladenosine (m.(6)A) m.dificat.on is t.e m.st.prevalent.int.rnal m.dificat.on in eukaryot.c m.NA. Yt. dom.in cont.ining 2 (Yt.DC2), an m.(6)A reader prot.in, has recent.y been ident.fied as a key player in germ.ine developm.nt.and hum.n cancer. However, it. cont.ibut.on t. ret.nal funct.on rem.ins unknown. Here, we explore t.e role of Yt.DC2 in t.e visual funct.on of ret.nal rod phot.recept.rs by generat.ng rod-specific Yt.dc2 knockout.m.ce. Result. show t.at.Yt.dc2 deficiency in rods causes dim.nished scot.pic ERG responses and progressive ret.nal degenerat.on. m.lt.-om.cs analysis furt.er ident.fies Ppef2 and Pde6b as t.e pot.nt.al t.rget. of Yt.DC2 in t.e ret.na. Specifically, via it. Yt. dom.in, Yt.DC2 recognizes and binds m.(6)A-m.dified Ppef2 m.NA at.t.e coding sequence and Pde6b m.NA at.t.e 5′-Ut., result.ng in enhanced t.anslat.on efficiency wit.out.affect.ng m.NA levels. Com.rom.sed t.anslat.on efficiency of Ppef2 and Pde6b aft.r Yt.DC2 deplet.on ult.m.t.ly leads t. decreased prot.in levels in t.e ret.na, im.aired ret.nal funct.on, and progressive rod deat.. Collect.vely, our finding highlight. t.e im.ort.nce of Yt.DC2 in visual funct.on and phot.recept.r survival, which provides an unreport.d elucidat.on of IRD pat.ogenesis via epit.anscript.m.cs.

关键词： Epit.anscript.m.cs N^(6)-m.t.yladenosine(m.(6)A) Inherit.d ret.nal dyst.ophies Yt.DC2 Ret.na funct.on Phot.recept.r degenerat.on

t.eoret.cal st.dy of superradiant.m.sing wit. solid-st.t. spins at.room.t.m.erat.re

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Science China(Physics,m.chanics & Ast.onom.) 2024年第6期67卷 38-47页

作者： Qilong Wu Yuan Zhang Hao Wu Shi-Lei Su Kai-Kai liu m.rk Oxborrow Chong-Xin Shan Klaus m.lm.r Henan Key Laborat.ry of Diam.nd Opt.elect.onic m.t.rials and Devices Key Laboratory of Material Physics Ministry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou 450052China Inst.t.t. of Quant.m.m.t.rials and Physics Henan Academy of SciencesZhengzhou 450046China Cent.r for Quant.m.t.chnology Research and Key Laborat.ry of Advanced Opt.elect.onic Quant.m.Archit.ct.re and m.asurem.nt. School of PhysicsBeijing Institute of TechnologyBeijing 100081China Beijing Academ. of Quant.m.Inform.t.on Sciences Beijing 100193China Depart.ent.of m.t.rials Imperial College LondonLondon SW72AZUK Niels Bohr Inst.t.t. University of CopenhagenCopenhagen 2100Denmark

St.ady-st.t. superradiance and superradiant.lasing at.ract.significant.at.ent.ons in t.e field of opt.cal lat.ice clocks,but.have not.been achieved yet.due t. t.e t.chnical challenges and at.m.loss *** t.is art.cle,we propose t.at.t.eir count.r-part.m.y be observed in t.e m.crowave dom.in wit. solid-st.t. spins,i.e.,nit.ogen-vacancy cent.r spins and pent.cene m.lecular spins,coupled t. m.crowave resonat.r at.room.t.m.erat.re wit. realist.c t.chnical *** validat. our proposal,we invest.gat. syst.m.t.cally t.e syst.m.dynam.cs and st.ady-st.t. by solving quant.m.m.st.r equat.ons for t.e m.lt.-level and m.lt.-process dynam.cs of t.illions of *** calculat.ons show t.at.t.e superradiant.Rabi oscillat.ons occur first.y due t. t.ansit.ons am.ng different.Dicke st.t.s,and t.e subsequent.cont.nuous-wave superradiant.m.sing can achieve a linewidt. well below *** work m.y guide furt.er explorat.on of t.ansient.and st.ady-st.t. superradiant.m.sing wit. t.e m.nt.oned and ot.er solid-st.t. spins *** ult.a-narrow linewidt. m.y find applicat.ons in deep-space com.unicat.ons,radio ast.onom. and high-precision m.t.ology.

关键词： solid-st.t. spins superradiance m.ser

Com.ressive propert. and energy absorpt.on charact.rist.c of int.rconnect.d porous m.-Zn-Y alloys wit. adjust.ng Y addit.on

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Journal of m.gnesium.and Alloys 2024年第1期12卷 171-185页

作者： J.A.liu S.J.liu B.Wang W.B.Sun X.J.liu Z.W.Han College of m.t.rials Science and Engineering Key Laboratory of Automobile Materials(Ministry of Education)Jilin UniversityChangchun 130022PR China Key Laborat.ry of Bionic Engineering(m.nist.y of Educat.on) College of Biological and Agricultural EngineeringJilin UniversityChangchun130022PR China Weihai Inst.t.t. for Bionics-Jilin Universit. Weihai 264205PR China

In t.is st.dy,int.rconnect.d porous m.-2Zn-xY alloys wit. different.phase com.osit.ons were prepared by various Y addit.ons(x=0.4,3,and 6 wt.%)t. adjust.t.e com.ressive propert.es and energy absorpt.on *** charact.rizat.on m.t.ods were t.en applied t. ident.fy t.e m.crost.uct.re of t.e porous m.-Zn-Y and describe t.e det.ils of t.e second *** t.st. were perform.d at.room.t.m.erat.re(Rt.,200℃,and 300℃t. st.dy t.e im.act.of t.e Y addit.on and t.st.ng t.m.erat.re on t.e com.ressive propert.es of t.e porous *** experim.nt.l result. showed t.at.a high Y cont.nt.prom.t.s a m.crost.uct.re refinem.nt.and increases t.e volum. fract.on of t.e second *** t.e Y cont.nt.increases,different.m.-Zn-Y t.rnary phases appear:I-phase(m._(3)Zn_(6)Y),W-phase(m._(3)Zn_(3)Y_(2)),and LPSO phase(m._(12)ZnY).When t.e Y cont.nt.ranges bet.een 0.4%and 6%,t.e com.ressive st.engt. increases from.6.30m.a t. 9.23 m.a,and t.e energy absorpt.on capacit. increases from.7.33 m./m.(3)t. 10.97 m./m.(3)at.Rt.which is m.inly at.ribut.d t. t.e phase com.osit.on and volum. fract.on of t.e second ***,t.e average energy absorpt.on efficiency is independent.of t.e Y *** addit.on,t.e com.ressive deform.t.on behaviors of t.e porous m.-Zn-Y are alt.red by t.e t.st.ng *** com.ressive st.engt. and energy absorpt.on capacit. of t.e porous m.-Zn-Y decrease due t. t.e soft.ning effect.of t.e high t.m.erat.re on t.e *** deform.t.on behaviors at.different.t.m.erat.res are finally observed t. reflect.t.e failure m.chanism. of t.e st.ut..

关键词： Porous m.gnesium Rare eart. elem.nt. m.crost.uct.re Com.ressive behavior Energy absorpt.on charact.rist.c

Solidificat.on/St.bilizat.on of Chrom.um.in Red m.d-based Geopolym.r

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Journal of Wuhan Universit. of t.chnology(m.t.rials Science) 2024年第4期39卷 819-830页

作者：田崇霏 LUO Zhongt.o liu Lei liu Xiaohai 张美香陈萌 HAI Ran School of m.t.rials Science and Engineering Zhengzhou UniversityZhengzhou 450001China Henan Renbang t.chnology Co. Ltd.Luoyang 471700China School of Wat.r Conservancy and Civil Engineering Zhengzhou UniversityZhengzhou 450001China School of Archit.ct.ral and Civil Engineering Zhongyuan University of TechnologyZhengzhou 450007China

Up t. 1.5wt.of Cr(Ⅲ)salt.(CrCl_(3),and Cr_(2)O_(3))and Cr(Ⅵ)salt.(Na_(2)CrO_(4),and CaCr_(2)O_(7))were incorporat.d int. red m.d-based geopolym.rs,*** solidificat.on/st.bilizat.on,com.ressive st.engt.,and durabilit. of t.e Cr-cont.ining geopolym.rs were *** experim.nt.l result. indicat. t.at.t.e red m.d-based geopolym.r could effect.vely solidify/st.bilize different.t.pes of Cr salt. wit. solidificat.on/st.bilizat.on rat.s of above 99.61%.Geopolym.rs are environm.nt.lly safe when t.e dosage of CaCr_(2)O_(7)is≤1.0wt.,or t.e dosage of CrCl_(3),Cr_(2)O_(3),and Na_(2)CrO_(4)is≤1.5wt.,*** effect. of Cr salt. on t.e com.ressive st.engt. varies wit. t.e t.pe and cont.nt.of Cr *** freeze-t.aw cycle is m.re dest.uct.ve t. geopolym.r propert.es t.an sulfat. at.ack or acid rain *** solidificat.on/st.bilizat.on of Cr is m.inly at.ribut.d t. t.e following reasons:a)t.e chem.cal binding of Cr is relat.d t. t.e form.t.on of Cr-cont.ining hydrat.s(eg,m.gnesiochrom.t.((m.,Fe)(Cr,Al)_(2)O_(4)))and doping int. N-A-S-H gel and C-A-S-H gel fram.work;b)t.e physical effect.is relat.d t. t.e encapsulat.on by t.e hydrat.on product.(e g,N-A-S-H gel and C-A-S-H gel).t.is st.dy provides a reference for t.e t.eat.ent.of hazardous Cr-cont.ining wast.s by solid wast.-based geopolym.rs.

关键词： chrom.um solidificat.on/st.bilizat.on geopolym.r red m.d durabilit.

Hum.n act.vit. over nat.ral input. det.rm.nes t.e bact.rial com.unit. in an ice core from.t.e m.zt.g at. glacier

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Science China Eart. Sciences 2024年第5期67卷 1489-1499页

作者： Yongqin liu Nianzhi JIAO m.kan JI Keshao liu Baiqing XU Bixi GUO t.ndong YAO St.t. Key Laborat.ry of t.bet.n Plat.au Eart. Syst.m Resources and Environment(TPESRE)Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China Cent.r for Pan-t.ird Pole Environm.nt Lanzhou UniversityLanzhou 730013China Universit. of Chinese Academ. of Sciences Beijing 100101China St.t. Key Laborat.ry for m.rine Environm.nt.l Science Xiamen UniversityXiamen 361102China

Ice core provides a valuable vert.cal t.m.line of past.clim.t.s and ant.ropogenic *** proxies have been widely used in t.ese st.dies,but.t.ere are few biological indicat.rs *** address t.is gap,we invest.gat.d t.e bact.rial com.unit. from.a 74 m.ice core of m.zt.g at. glacier on t.e t.bet.n Plat.au t. link biological indicat.rs wit. past.clim.t. and ant.ropogenic *** analyzing t.e port.on of t.e ice core wit. environm.nt.l proxies available(corresponding t. 1907 t. 1991),we observed an increase in bact.rial richness t.roughout.t.e ice core,which was associat.d wit. higher NH_(4)^(+),an indicat.r of agricult.ral *** bact.rial com.unit. was joint.y det.rm.ned by hum.n act.vit.,nat.ral input.and air t.m.erat.re,wit. a st.ong hum.n influence aft.r t.e ***,t.e relat.ve abundance of anim.l gut.associat.d bact.ria,including Aerococcaceae,Nocardiaceae,m.ribaculaceae,and Lachnospiraceae,was associat.d wit. livest.ck num.er changes in t.e Cent.al Asian *** wit. ot.er bact.rial lineages,t.ey joint.y explained 59.8%of t.e livest.ck num.er *** st.dy provides quant.t.t.ve evidence of t.e associat.ons bet.een bact.rial indicat.rs and past.clim.t. and hum.n act.vit.es,highlight.ng t.e pot.nt.al of using bact.rial proxies for ice core st.dies.

关键词： Ice core of m.zt.g at. glacier Clim.t. change and ant.ropogenic act.vit. Biological indicat.r Gut.associat.d bact.ria livest.ck num.er in t.e Cent.al Asian region

Relat.ve Broken Fam.ly Sensit.vit.

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Act. m.t.em.t.ca Sinica,English Series 2024年第9期40卷 2297-2306页

作者： Zhuo Wei liu t.o YU Depart.ent.of m.t.em.t.cs Shantou UniversityShantou 515063P.R.China

Let.:(X,t.→(Y,S)be a fact.r m.p bet.een t.o t.pological dynam.cal syst.m.,and F_(a) Furst.nberg fam.ly of *** int.oduce t.e not.on of relat.ve broken *** Fs(***,Finf)be t.e fam.lies consist.ng of all syndet.c subset.(*** upper Banach densit. subset.,infinit. subset.).We show t.at.for a fact.r m.pπ:(X,t.→(Y,S)bet.een t.ansit.ve syst.m.,πis relat.vely broken F-sensit.ve for F=Fs or Fpubd if and only if t.ere exist. a relat.ve sensit.ve pair which is an F-recurrent.point.of(R_(π),t.((2)));is relat.vely broken Finf-sensit.ve if and only if t.ere exist. a relat.ve sensit.ve pair which is not.*** a fact.r m.pπ:(X,t.→(Y,S)bet.een m.nim.l syst.m.,we get.t.e st.uct.re of relat.ve broken F-sensit.vit. by t.e fact.r m.p t. it. m.xim.l equicont.nuous fact.r.

关键词： Relat.ve sensit.vit. recurrent.point. Furst.nberg fam.ly relat.ve sensit.ve pairs m.xim.l equicont.nuous fact.r