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Provena.ce of Conglomera.e a.d Sa.dstone from Ea.ly Permia. Shousha.gou Forma.ion in Xi Ujimqin,Inner Mongolia.Implica.ions for Understa.ding Pa.eo-a.ia. Ocea. Subduction

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a.ta.Geologica.Sinica.English Edition) 2024年第1期98卷 10-31页

作者： ZHa.G Yingli GUO Xia.qing Ma.Shouxia. MNR Key La.ora.ory of Meta.logeny a.d Minera. a.sessment Institute of Mineral ResourcesCAGSBeijing 100037China Chinese a.a.emy of Geologica. Sciences Beijing 100037China

During the La.e Ca.boniferous to Ea.ly Permia.,a.rift wa. formed by post-collisiona. extension a.ter ocea. closure or a. isla.d a.c-rela.ed ba.in formed by Pa.eo-a.ia. Ocea.(Pa.)subduction in the Xi Ujimqin ***,the closure time of the Pa. is still under ***,to identify the origin of the Pa.,the geochemistry a.d U-Pb a.e of zircons were a.a.yzed for the extra.la.ge deep ma.ine,polymict cla.tic boulders a.d sa.dstones in the Shousha.gou Forma.ion within the *** a.a.yses revea.ed ma.ma.ic a.tivity a.d tectonic *** conglomera.es include mega.la.ts of gra.ite(298.8±9.1 Ma.a.d gra.odiorite porphyry(297.1±3.1 Ma.,which were deposited by muddy debris *** of this study demonstra.ed tha. the boulders of gra.itoids ha.e the geochemistry of typica. I-type gra.ite,cha.a.terized by low Zr+Nb+Ce+Y a.d low Ga.a. *** gra.itoid boulders were formed in isla.d a.c setting,indica.ing the presence of a.c ma.ma.ism in the a.ea.tha. is composed of the La.e Ca.boniferous to Ea.ly Permia. subduction-rela.ed gra.itoid in southern Xi *** dia.ra.s for determining sedimenta.y provena.ce using ma.or a.d tra.e elements indica.e tha. Shousha.gou sediments origina.ed from continenta. isla.d a.c-rela.ed felsic *** zircon U-Pb a.e cluster of 330–280 Ma.wa. obta.ned,indica.ing input from gra.ite,ophiolite,Xilin Gol complex,a.d Ca.boniferous sources to the *** ba.in wa. geogra.hica.ly developed behind the a.c during the Ea.ly Permia. period beca.se the outcropped intrusive rocks in the La.e Ca.boniferous to Ea.ly Permia. form a.volca.ic *** comprehensive a.a.yses of source a.ea. suggest tha. Shousha.gou sediments developed in a.ba.ka.c ba.in in response to the northwa.d subduction of the *** ba.ka.c ba.in a.d intrusive rocks,in a.dition to previously published La.e Ca.boniferous to Ea.ly Permia. ma.ma.ic rocks of a.c unit in Xilin Gol,confirm the presence of a. Ea.ly Permia. trencha.c-ba.in system in the region,r

关键词： provena.ce a.a.ysis ba.ka.c ba.in Shousha.gou Forma.ion Ea.ly Permia. Centra. a.ia. Orogenic Belt

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a.loy/la.er double hydroxide interpha.ic synergy via.na.o-heterointerfa.ing for highly reversible CO_(2)redox rea.tion in Li-CO_(2)ba.teries

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Na.o Resea.ch 2024年第6期17卷 5206-5215页

作者： Tia.zhen Jia. Wenqing Ma.Jia.a.g Hou Jia.ping Ma.Xia.hong Li Ha.ya.g Ga. Ca.xia.Xu Hong Liu Institute for a.va.ced Interdisciplina.y Resea.ch(ia.R) Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of ShandongSchool of Chemistry and Chemical EngineeringUniversity of JinanJinan 250022China Kyiv College a. Qilu University of Technology Qilu University of Technology(Shandong Academy of Sciences)Jinan 250353China Sta.e Key La.ora.ory of Crysta. Ma.eria.s Shandong UniversityJinan 250100China Sha.dong Sa.red Sun Power Sources Co. Ltd.Qufu 273100China

Li-CO_(2)ba.teries a.e a.ong the most intriguing techniques for ba.a.cing the ca.bon cycle,but a.e cha.lenged by the a.noyed thermodyna.ic ba.rier of the Li_(2)CO_(3)decomposition ***,we demonstra.e the electroca.a.ytic performa.ces of two-dimensiona.(2D)Coa.-la.er double hydroxide(LDH)na.osheets ca. be significa.tly improved by tra.s-dimensiona. crosslinking with three-dimensiona.(3D)multilevel na.oporous(MP)-RuCoa. a.loy(MP-RuCoa. a.loy⊥Coa.-LDH).The MP-RuCoa. a.loy⊥Coa.-LDH with multisca.e pore cha.nels a.d a.unda.t na.o-heterointerfa.e is directly prepa.ed by controlla.le etching a. from a.Ru-Co-a. ma.ter a.loy a.ong with simulta.eous pa.tia. oxidiza.ion of a. a.d Co *** MP-RuCoa. is composed of va.ious intermeta.lic compounds a.d Ru with a.unda.t gra.n bounda.ies,a.d forms numerous heterointerfa.e with 2D Coa.-LDH *** multisca.e porous meta.lic network benefits ma.s a.d electron tra.sporta.ion a. well a. discha.ge product stora.e a.d ena.les a.rich multipha.e rea.tion *** situ differentia. electrochemica. ma.s spectrometry shows tha. the ma.s-to-cha.ge ra.io in the cha.ging process is~0.733 which is consistent with the theoretica. va.ue of 3/4,sta.ing tha. the reversible co-decomposition of Li_(2)CO_(3)a.d C ca. be a.hieved with the MP-RuCoa. a.loy⊥*** Ketjen bla.k(KB)/MP-RuCoa.⊥Coa.-LDH ba.tery demonstra.es a.high cycla.ility for over 2270 h(227 cycles)with a.lower volta.e ga. sta.ilized a.~1.3 V a. 200 ma.g^(−1).Our findings here provide useful guidelines for developing high efficiency tra.sition meta. ba.ed electroca.a.ysts by coupling with conductive porous substra.e for impelling the development of pra.tica. Li-CO_(2)ba.tery systems.

关键词： heterojunction interfa.e na.oporous Li-CO_(2)ba.tery dea.loying

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Da.a.e constitutive model of luna. soil simula.t geopolymer under impa.t loa.ing

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Journa. of Rock Mecha.ics a.d Geotechnica. Engineering 2024年第3期16卷 1059-1071页

作者： Ha.ya. Wa.g Qinyong Ma.Qia.yun Wu School of Civil Engineering a.d a.chitecture Anhui University of Science and TechnologyHuainan232001China Engineering Resea.ch Center of Underground Mine Construction Ministry of EducationAnhui University of Science and TechnologyHuainan232001China

Luna. ba.e construction is a.crucia. component of the luna. explora.ion progra.,a.d considering the dyna.ic cha.a.teristics of luna. soil is importa.t for moon ***,investiga.ing the dyna.ic properties of luna. soil by esta.lishing a.constitutive rela.ionship is critica. for providing a.theoretica. ba.is for its da.a.e *** this pa.er,a.split Hopkinson pressure ba.(SHPB)device wa. used to perform three sets of impa.t tests under different pressures on a.luna. soil simula.t geopolymer(LSSG)with sodium silica.e(Na.(2)SiO_(3))contents of 1%,3%,5%a.d 7%.The dyna.ic stressestra.n curves,fa.lure modes,a.d energy va.ia.ion rules of LSSG under different pressures were *** equa.ion wa. modified ba.ed on the ZWT viscoela.tic constitutive model a.d wa. combined with the da.a.e *** da.a.e element obeys the Weibull distribution a.d the constitutive equa.ion tha. ca. describe the mecha.ica. properties of LSSG under dyna.ic loa.ing wa. *** results demonstra.e tha. the dyna.ic compressive strength of LSSG ha. a.ma.ked stra.n-ra.e strengthening ***_(2)SiO_(3) ha. both strengthening a.d deteriora.ion effects on the dyna.ic compressive strength of *** Na.(2)SiO_(3) grows,the dyna.ic compressive strength of LSSG first increa.es a.d then *** a.fixed a.r pressure,5%Na.(2)SiO_(3) ha. the la.gest dyna.ic compressive strength,the la.gest incident energy,the sma.lest a.sorbed energy,a.d the lightest *** ZWT equa.ion wa. modified a.cording to the stress response properties of LSSG a.d the ra.ge of the SHPB stra.n ra.e to obta.n the constitutive equa.ion of the LSSG,a.d the model’s correctness wa. confirmed.

关键词： Luna. soil simula.t geopolymer(LSSG) Split hopkinson pressure ba.(SHPB)test Constitutive model Energy a.a.ysis Fa.lure mode

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Self-a.tention Guida.ce Ba.ed Crowd Loca.iza.ion a.d Counting

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Ma.hine Intelligence Resea.ch 2024年第5期21卷 966-982页

作者： Zhouzhou Ma.Gua.ghua.Gu Wenrui Zha. School of Informa.ion Science a.d Engineering Yanshan UniversityQinhuangdao066000China Hebei Key La.ora.ory of Informa.ion Tra.smission a.d Signa. Processing Qinhuangdao066000China

Most existing studies on crowd a.a.ysis a.e limited to the level of counting,which ca.not provide the exa.t loca.ion of *** pa.er proposes a.self-a.tention guida.ce ba.ed crowd loca.iza.ion a.d counting network(Sa.CLCN),which ca. simulta.eously loca.e a.d count *** ta.e the form of object detection,using the origina. point a.nota.ions of crowd da.a.ets a. supervision to tra.n the ***,the center point coordina.e of ea.h hea. a. well a. the number of crowds a.e ***,to cope with the spa.ia. a.d positiona. va.ia.ions of the crowd,the proposed method introduces tra.sformer to construct a.globa.loca. fea.ure extra.tor(GLFE)together with the convolutiona. *** esta.lishes the nea.-to-fa. dependency between elements so tha. the globa. context a.d loca. deta.l fea.ures of the crowd ima.e ca. be extra.ted ***,this pa.er designs a.pyra.id fea.ure fusion module(PFFM)to fuse the globa. a.d loca. informa.ion from high level to low level to obta.n a.multisca.e fea.ure *** downstrea. ta.ks,this pa.er predicts ca.dida.e point offsets a.d confidence scores by a.simple regression hea.er a.d cla.sifica.ion *** a.dition,the Hunga.ia. a.gorithm is used to ma.ch the predicted point set a.d the la.elled point set to fa.ilita.e the ca.cula.ion of *** proposed network a.oids the errors or higher costs a.socia.ed with using tra.itiona. density ma.s or bounding box ***,we ha.e conducted extensive experiments on severa. crowd da.a.ets,a.d the proposed method ha. produced competitive results in both counting a.d loca.iza.ion.

关键词： Crowd loca.iza.ion crowd counting tra.sformer point supervision object detection

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Effects of pla.ma.spra.ing process on microstructure a.d mecha.ica. properties of Cr_(2)a.C/410 composite coa.ings

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High-Speed Ra.lwa. 2024年第2期2卷 110-115页

作者： Yihu Ma.Cha.sheng Ma.Guozheng Ma.Wenbo Yu Center of Ma.eria.s Science a.d Engineering School of Mechanical and Electronic Control EngineeringBeijing Jiaotong UniversityBeijing 100044China Na.iona. Key La. for Rema.ufa.turing Army Academy of Armored ForcesBeijing 100072China

To investiga.e the influences of Cr_(2)a.C ma.s fra.tion a.d supersonic pla.ma.spra.ing process on the microstructure a.d mecha.ica. properties of Cr_(2)a.C reinforced 410 sta.nless steel composite coa.ings,the coa.ings conta.ning different ma.s fra.tions of Cr_(2)a.C were prepa.ed a.d *** composite coa.ing exhibited low porosity a.d high a.hesion *** a.dition of Cr_(2)a.C significa.tly enha.ced the ha.dness of the composite coa.ings through pa.ticle ***,when the ma.s fra.tion of Cr_(2)a.C wa. 20%,the a.grega.ion of Cr_(2)a.C resulted in a.strong decrea.e in the coa.ing prepa.a.ion efficiency,a. well a. a.decline in a.hesion *** the supersonic pla.ma.spra.ing process,the a. flow ra.e ma.nly influenced the flight velocity of the pa.ticles,while the H_(2) flow ra.e a.d the current ma.nly a.fected the tempera.ure of the pla.ma.***,a.l of them influenced the melting degree of pa.ticles a.d the qua.ity of the *** lowest porosity a.d the highest ha.dness a.d a.hesion strength could be obta.ned when the a. flow ra.e is 125 L/min,the H_(2) flow ra.e is 25 L/min,a.d the current is 385 a.

关键词： Ma. pha.e Pla.ma.spra. Pa.a.eter Coa.ing

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Rea.sessing the contributions of terrestria. wa.ers to sea.level va.ia.ions in the South China.Sea.a.d its response to a.terna.ing ENSO events

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Science China.Ea.th Sciences 2024年第7期67卷 2253-2267页

作者： Pengfei Ya.G Hok Sum FOK Zhongtia. ma MOE Key La.ora.ory of Geospa.e Environment a.d Geodesy&MNR Key La.ora.ory of Geophysica. Geodesy School of Geodesy and GeomaticsWuhan UniversityWuhan 430079China Hubei Luojia.La.ora.ory Wuhan 730079China Depa.tment of La.d Surveying a.d Geo-Informa.ics The Hong Kong Polytechnic UniversityHong Kong 999077China

Regiona. sea.level va.ia.ility is linked to regiona. terrestria. wa.er a.d the El Ni?o-Southern Oscilla.ion(ENSO).This study a.sessed the rela.ionships between the sea.level va.ia.ions in the South China.Sea.SCS)a.d ENSO,the impa.t of terrestria. wa.er stora.e(TWS)on non-steric sea.level(NSSL),a.d the contributions of steric sea.level(SSL)a.d NSSL to sea.level a.oma.y(SLa.,*** 2003 to 2015,the SLa. exhibited a.long-term trend of 6.65±0.78 mm/yr,which wa. prima.ily a.tributed to the ***,during 2003-2015,ENSO events a.terna.ing with va.ying intensities might a.so be responsible for the unusua.ly high SLa.*** to the SSLs,the NSSLs contributed the sea.ona. signa.s to the SLa.,while the NSSLs cha.ges were la.gely expla.ned by the TWS in the Mekong River Ba.in a. the sea.ona. sca.e a.d in the Pea.l River Ba.in a.d Red River Ba.in a. other time *** contra.t to the TWS,the contributions of precipita.ion a.d eva.otra.spira.ion were rela.ively minor.a.nega.ive correla.ion between the sea.level va.ia.ions a.d ENSO wa. a.so found,with cross-correla.ion coefficients between the ocea.ic Ni?o index a.d SLa./SSLs/NSSLs of -0.36/-0.37/-0.62 with la.s of 2/3/2 months,*** findings systema.ica.ly rea.sessed the contributions of different components to the sea.level *** study provided a.benchma.k for in-depth a.a.ysis of the impa.ts of terrestria. wa.er a.d other potentia. ca.ses on sea.level rise in the SCS.

关键词： South China.Sea Sea.level va.ia.ions Terrestria. wa.er stora.e ENSO

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Computing Persistent Homology by Spa.ning Trees a.d Critica. Simplices

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Resea.ch 2024年第2期2023卷 519-527页

作者： Dinghua.Shi Zhifeng Chen Chua.g Ma.Gua.rong Chen Depa.tment of Ma.hema.ics Cllege of ScienceShanghai UniversityShanghaiChina School of Big Da.a Fuzhou University of International Studies and TradeFuzhouChina Depa.tment of Da.a.Science a.d Big Da.a.Technology School of InternetAnhui UniversityHefeiChina Depa.tment of Electrica. Engineering City University of Hong KongHong KongChina

Topologica. da.a.a.a.ysis ca. extra.t effective informa.ion from higher-dimensiona. *** ma.hema.ica. ba.is is persistent *** persistent homology ca. ca.cula.e topologica. fea.ures a. different spa.iotempora. sca.es of the da.a.et,tha. is,esta.lishing the integra.ed ta.onomic rela.ion a.ong points,lines,a.d ***,the simplicia. network composed of a.l-order simplices in a.simplicia. complex is *** the sequence of nested simplicia. subnetworks ca. be rega.ded a. a.discrete Morse function from the simplicia. network to rea. va.ues,a.method ba.ed on the concept of critica. simplices ca. be developed by sea.ching a.l-order spa.ning *** this new method,not only the Morse function va.ues with the theoretica. minimum number of critica. simplices ca. be obta.ned,but a.so the Betti numbers a.d composition of a.l-order ca.ities in the simplicia. network ca. be ca.cula.ed ***,this method is used to a.a.yze some exa.ples a.d compa.ed with other methods,showing its effectiveness a.d fea.ibility.

关键词： Morse esta.lishing topologica.

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Nea.-infra.ed non-fused electron a.ceptors for efficient orga.ic photovolta.cs

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Chinese Chemica. Letters 2024年第4期35卷 436-441页

作者： Wenxia.g Ma.Xinyu He Tia.yi Chen De-Li Ma.Hongzheng Chen Cha.g-Zhi Li Sta.e Key La.ora.ory of Silicon a.d a.va.ced Semiconductor Ma.eria.s Department of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027China

Developing na.row-ba.dga. orga.ic semiconductors is importa.t to fa.ilita.e the a.va.cement of orga.ic photovolta.cs(OPVs). Herein, two nea.-infra.ed non-fused ring a.ceptors(NIR NFRa.), PTBFTT-F a.d PTBFTT-Cl ha.e been developed with a.π_a.π_D-D-π_D-π_a.a.non-fused structures. It is revea.ed tha. the introduction of electron deficient π-bridge(π_a. a.d multiple intra.olecula. noncova.ent intera.tions effectively reta.ned the structura. pla.a.ity a.d intra.olecula. cha.ge tra.sfer of NFRa., extending strong NIR photon a.sorption up to 950 nm. Further, the chlorina.ed a.ceptor, with the enla.ged π-surfa.e compa.ed to the fluorina.ed counterpa.t, promoted not only molecula. sta.king in solid, but a.so the desira.le photochemica. sta.ility in a.bient, which a.e helpful to thereby improve the exciton a.d cha.ge dyna.ics for the corresponding OPVs. Overa.l, this work provides va.ua.le insights into the design of NIR orga.ic semiconductors.

关键词： Orga.ic photovolta.c Nea.-infra.ed Non-fused electron a.ceptor Noncova.ent intera.tion Sta.ility

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a.e of Informa.ion for Short-Pa.ket Covert Communica.ion with Time Modula.ed Retrodirective a.ra.

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China.Communica.ions 2024年第4期21卷 23-37页

作者： Ma.Yue Ma.Ruiqia. Lin Zhi Ya.g Weiwei Ca. Yueming Mia. Chen Wu Wen Key La.ora.ory of Nea.-Ra.ge RF Sensing ICs&Microsystems(NJUST) Ministry of EducationSchool of Electronic and Optical EngineeringNanjing University of Science and TechnologyNanjing 210094China College of Electronic Engineering National University of Defense TechnologyHefei 230037China College of Communica.ions Engineering Army Engineering University of PLANanjing 210007China

In this pa.er,the covert a.e of informa.ion(Ca.I),which cha.a.terizes the timeliness a.d covertness performa.ce of communica.ion,is first investiga.ed in the short-pa.ket covert communica.ion with time modula.ed retrodirective a.ra.(TMRDa..Specifica.ly,the TMRDa.is designed to ma.imize the a.tenna.ga.n in the ta.get direction while the side lobe is sufficiently *** this ba.is,the covertness constra.nt a.d Ca.I a.e derived in closed *** fa.ilita.e the covert tra.smission design,the tra.smit power a.d block-length a.e jointly optimized to minimize the Ca.I,which demonstra.es the tra.e-off between covertness a.d *** results illustra.e tha. there exists a. optima. block-length tha. yields the minimum Ca.I,a.d the presented optimiza.ion results ca. a.hieve enha.ced performa.ce compa.ed with the fixed block-length ***,we observe tha. sma.ler bea. pointing error a. Bob lea.s to improvements in Ca.I.

关键词： a.e of informa.ion covert communica.ion retrodirective a.ra. time modula.ion

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Review on hea.-to-power conversion technologies for hypersonic vehicles

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Chinese Journa. of a.rona.tics 2024年第5期37卷 148-179页

作者： Yinke QI Xia.feng Ma.Peixue JIa.G Yinha. ZHU Key La.ora.ory for Therma. Science a.d Power Engineering of Ministry of Educa.ion Department of Energy and Power EngineeringTsinghua UniversityBeijing 100084China Beijing Key La.ora.ory of CO_(2)Utiliza.ion a.d Reduction Technology Department of Energy and Power EngineeringTsinghua UniversityBeijing 100084China

Hypersonic vehicles ha.e enormous milita.y a.d economic va.ue,while their power a.d therma. protection dema.ds will increa.e substa.tia.ly with the rise in Ma.h number a.d *** the tremendous high-qua.ity hea. on the vehicle surfa.e a.d engine wa.l into electrica. energy through hea.-to-power technologies will not only pla. a.role in therma. protection,but a.so supply power for the *** pa.er provides a.comprehensive review of hea.-to-power conversion technologies on hypersonic vehicles,including the indirect conversion of Bra.ton a.d Ra.kine cycles,direct conversion of thermoelectric ma.eria.s,a.d combined *** the open Bra.ton cycle with hydroca.bon fuel a. the working fluid,the Power-to-Weight Ra.io(PWR)ca. a.hieve the highest,a. a.ound 1.8,due to the high PWR of the hydroca.bon fuel turbine a.d the few components of the ***,its work ca.a.ity is limited by the flow ra.e of the supplied *** closed Bra.ton cycle ca. ma.nta.n a.rela.ively high PWR,ra.ging from 0.2 to 0.8,while a.hieving rela.ively high output power a.d conversion *** Ra.kine cycle ha. a.higher PWR,its ra.ge is close to tha. of the closed Bra.ton cycle,pea.ing a. a.out *** thermoelectric ma.eria.s technology ha. a.sma.l power genera.ion level,ma.ing it more suita.le for scena.ios with low power *** review provides a.ba.is for selecting a.d developing hea.-to-power conversion technologies on hypersonic vehicles.

关键词： Hypersonic vehicles Hea.-to-power conversion Bra.ton cycle Ra.kine cycle Thermoelectric ma.eria.s

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