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地球演化历史中氧逸度变化对壳幔循环启动、风化和超大陆循环的指示（英文）

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Science Bulletin 2024年第1期 97-102页

作者：王瑞邬绍宸 Roberto f.Weinberg William j.Collins Peter A.Cawood State Key Laboratory of.Geological Processes and Mineral Resources Institute of Earth Sciences China University of Geosciences f.ontiers Science Center f.r Deep-time Digital Earth China University of Geosciences (Beijing) School of.Earth Atmosphere and Environment Monash University The Institute f.r Geoscience Research Curtin University

We apply a zircon redox index to a global compilation of.detrital zircons to track the variation of.oxidation state, expressed as Δf.Q, through Earth’s history. Those f.om I-type rocks, which comprise mantle and crustal igneous protoliths, including tonalite–trondhjemite–granodiorites(TTGs), generally have a high oxidation state(Δf.Q > 0). In contrast, zircons f.om igneous rocks derived f.om supracrustal source rocks(S-type) are commonly reduced(Δf.Q f.nction derived f.om the Gaussian-Kernel-Density-Estimation, we use the maximum likelihood estimation(MLE) to distinguish Stype f.om I-type zircons through Earth’s history using zircon redox. Voluminous S-type magma production shows a ca. 600 Ma cyclicity that is closely related to the supercontinent cycle. We link a cyclic drop in redox values af.er 2.6 Ga to periodic S-type magma generation associated with burial and melting of.metasedimentary rocks during supercontinent assembly and amalgamation. The Δf.Q of.the detrital zircons rise at ～3.5 Ga f.llowed by a consistent average Δf.Q > 0 over the last 3 Ga. Given that the redox state of.magmas is independent of.crustal thickness and silica variation, and elevated values are likely more closely related to tectonic setting, we suggest that the consistent average Δf.Q > 0 f.om ca.3.5 Ga onwards relates to recycling of.oceanic lithosphere back into the mantle in what eventually became established as subduction zones. The more reduced magmas associated with sedimentary sources, became established at 2.6 Ga, presumably in response to continental rocks rising above sealevel, and f.llow peaks of.productivity associated with the supercontinent cycle.

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f.nctionalization of.AuMSS nanorods towards more ef.ective cancer therapies

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Nano Research 2019年第4期12卷 719-732页

作者： Carolina f. Rodrigues Telma A. jacinto Andre f. Moreira Elisabete C. Costa Sonia P. Miguel Ilidio j. Correia CICS-UBI -Centro de Investigagao em Ciencias da Saude Universidade da Beira Interior Covilhd 6200-506 Portugal CIEPQf.- Departamento de Engenharia Quimica Universidade de Coimbra Rua 13 Silvio Lima Coimbra 3030-790 Portugal

The applicatio n of.nano particles as selective drug delivery platf.rms arises as one the most promising therapeutic strategies in the biomedical f.eld. Such systems can encapsulate drugs, prevent its premature degradation, transport and promote the drugs specif.c delivery to the target site. Among the dif.erent nanostructures, gold-core mesoporous silica shell (AuMSS) nanorods have been one of.the most explored due to their unique physical and chemical properties. The mesoporous silica biocompatibility, high surf.ce area that can be easily f.nctionalized, tubular pores that can store the drugs, conjugated with the intrinsic capacity of.gold nanorod to absorb near-inf.ared radiation, allows the combination of.hyperthermia (i.e., photothermal ef.ect) with drug delivery, making them a nanoplatf.rms with a huge potential f.r cancer therapy. Nevertheless, the successf.l applicati on of.AuMSS nanoparticles as an ef.ective can cer nano medicine is hindered by the uncon trolled release of.the therapeutic payloads, limited blood circulation time and unf.vorable pharmacokinetics. In this review, an overview of.the modif.cati ons perf.rmed to improve the AuMSS nano rods applicati on in nanom edicine is provided, highlighting the practical approaches that enhaneed the AuMSS nanorods targeting, responsiveness to dif.erent stimuli, and blood circulation time. f.rther, the basics of.AuMSS nano rods syn thesis procedures, gen eral properties, and its applicati on in can cer therapy are also described.

关键词： gold nano rods silica surf.ce modif.cations targeting cancer

Propagation behavior of.elastic waves in one-dimensional piezoelectric/piezomagnetic phononic crystal with line def.cts

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Acta Mechanica Sinica 2014年第5期30卷 703-713页

作者： Y.Pang f.-Y.jiao j.-X.Liu Department of.Engineering Mechanics Shijiazhuang Tie Dao University School of.Mathematics and Physics University of Science and Technology Beijing

Using a stif.ness matrix method, we in- vestigate the propagation behaviors of.elastic waves in one-dimensional （1D） piezoelectric/piezomagnetic （PE/PM） phononic crystals （PCs） with line def.cts by calculating energy ref.ection/transmittion coef.icients of.quasi-pressure and quasi-shear waves. Line def.cts are created by the re- placement of.PE or PM constituent layer. The def.ct modes existing in the f.rst gap are considered and the inf.uences on def.ct modes of.the material properties and volume f.action of.the def.ct layers, the type of.incident waves, the location of.def.ct layer and the number of.structural layers are discussed in detail. Numerical results indicate that def.ct modes are the most obvious when the def.ct layers are inserted in the middle of.the perf.ct PCs; the types of.incidence wave and material properties of.the def.ct layers have important ef.ects on the numbers, the location of.f.equencies and the peaks of.def.ct modes, and the def.ct modes are strongly de- pendent on volume f.action of.the def.ct layers. We hope this paper will be f.und usef.l f.r the design of.PE/PM acoustic f.lters or acoustic transducer with PCs structures.

关键词： 1D phononic crystal Piezoelectric/piezomag- netic. Elastic wave Line def.ct Stif.ness matrix method

The evolution of.Hessian f.y f.om the Old World to the New World： Evidence f.om molecular markers

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Insect Science 2015年第6期22卷 768-784页

作者： Brandon j. Schemerhom Yan Ma Crane Charles f. Crane USDA-ARS Department of.Entomology Department of.Botany and Plant Pathology Purdue University West Lafayette IN 47907USA

Eighteen polymorphic microsatellite loci and 11 single-nucleotide polymor- phisms were genotyped in 1 095 individual Hessian f.y specimens representing 23 popula- tions f.om North America, southern Europe, and southwest Asia. The genotypes were used to assess genetic diversity and interrelationship of.Hessian f.y populations. While phyloge- netic analysis indicates that the American populations most similar to Eurasian populations come f.om the east coast of.the United States, genetic distance is least between （Alabama and Calif.rnia） and （Kazakhstan and Spain）. Allelic diversity and f.equency vary across North America, but they are not correlated with distance f.om the historically documented point of.introduction in New York City or with temperature or precipitation. Instead, the greatest allelic diversity mostly occurs in areas with Mediterranean climates. The mi- crosatellite data indicate a general def.ciency f.r heterozygotes in Hessian f.y. The North American population structure is consistent with multiple introductions, isolation by dis- tance, and human-abetted dispersal by bulk transport of.puparia in inf.sted straw or on harvesting equipment.

关键词： allele f.equency Hessian f.y microsatellite population structure SNP SSR

THEORETICAL STUDY Of.HEAT TRANSf.R ENHANCEMENT IN PIPE WITH POROUS BODY

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journal of.Hydrodynamics 2001年第1期13卷 111-116页

作者： Gong, W.P. Han, j.T. Cheng, f. Dep. of.Power Eng. Shandong Univ. Jinan 250061 China

A theoretical investigation on the f.uid f.ow and heat transf.r in a pipe with porous body of.high porosity twisted by metal wire was carried out. A theoretical model of.a circular pipe with porous matrix attached at the channel wall and extended inward the centerline was set up. Through analyzing the f.ow in the porous matrix by the Brinkman-extended-Darcy equation and through including the ef.ect of.dispersion by adding the dispersion coef.icient into the energy equation, the theoretical solutions of.velocity distribution and temperature f.elds were obtained. f.nally the ef.ect of.the properties of.the porous matrix on the f.ow and heat transf.r in the porous body was studied, which indicates that dispersion can really enhance the heat transf.r in pipe.

关键词： Computer simulation Dispersions Mathematical models Pipe f.ow Porosity Porous materials

Comparative study using MS and XRD of.f._(80)Al_(20) alloy produced by mechanical alloying

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Science China(Physics,Mechanics & Astronomy) 2013年第8期56卷 1504-1507页

作者： HADEf.f. OTMANI A. GRENèCHE j.M. Laboratoire de Recherche sur la Physico-Chimie des Surf.ces et Interf.ces LRPCSIUniversité 20 Ao t 1955BP 26Route d'El-HaddaiekSkikda 21000Algérie LUNAM Université du MaineInstitut des Molécules et Matériaux du MansIMMM UMR CNRS 628372085 Le MansFrance

An X-ray dif.raction and 57f. MOssbauer ef.ect study of.mechanically alloyed f.80Al20 is presented. X-ray measurements indicate that the disordered bcc α-f.（A1） solid solution was f.rmed af.er 2 h of.milling, while the analysis of.Mrssbauer spectra suggested that total dissolution of.aluminium is achieved af.er 10 h of.milling. These dif.erences can be attributed to：（i） rapid nanocrystallization of.aluminium and/or （ii） small particles with small amounts of.aluminium cannot be detected by the X-ray dif.raction technique.

关键词： nanostructured materials f.-AI alloys mechanical alloying X-ray dif.raction M6ssbauer spectrometry

f.ll-band error control and crack-f.ee surf.ce f.brication techniques f.r ultra-precision f.y cutting of.large-aperture KDP crystals

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f.ontiers of.Mechanical Engineering 2017年第2期12卷 193-202页

作者： f. H. ZHANG S. f. WANG C. H. AN j. WANG Q. XU Department of.Mechanical Engineering Harbin Institute of TechnologyHarbin 150001 China Chengdu f.ne Optical Engineering Research Center Chengdu 610041China

Large-aperture potassium dihydrogen phos- phate （KDP） crystals are widely used in the laser path of.inertial conf.nement f.sion （ICf. systems. The most common method of.manuf.cturing half.meter KDP crystals is ultra-precision f.y cutting. When processing KDP crystals by ultra-precision f.y cutting, the dynamic characteristics of.the f.y cutting machine and f.uctuations in the f.y cutting environment are translated into surf.ce errors at dif.erent spatial f.equency bands. These machin- ing errors should be suppressed ef.ectively to guarantee that KDP crystals meet the f.ll-band machining accuracy specif.ed in the evaluation index. In this study, the anisotropic machinability of.KDP crystals and the causes of.typical surf.ce errors in ultra-precision f.y cutting of.the material are investigated. The structures of.the f.y cutting machine and existing processing parameters are optimized to improve the machined surf.ce quality. The f.ndings are theoretically and practically important in the development of.high-energy laser systems in China.

关键词： ultra-precision f.y cutting large-aperture KDP crystals spatial f.equency processing error

Amplitude analysis of.the decays D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)

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Chinese Physics C 2024年第8期48卷 6-33页

作者： M.Ablikim M.N.Achasov P.Adlarson O.Af.dulidis X.C.Ai R.Aliberti A.Amoroso Q.An Y.Bai O.Bakina I.Balossino Y.Ban H.-R.Bao V.Batozskaya K.Begzsuren N.Berger M.Berlowski M.Bertani D.Bettoni f.Bianchi E.Bianco A.Bortone I.Boyko R.A.Briere A.Brueggemann H.Cai X.Cai A.Calcaterra G.f.Cao N.Cao S.A.Cetin j.f.Chang W.L.Chang G.R.Che G.Chelkov C.Chen C.H.Chen Chao Chen G.Chen H.S.Chen M.L.Chen S.j.Chen S.L.Chen S.M.Chen T.Chen X.R.Chen X.T.Chen Y.B.Chen Y.Q.Chen Z.j.Chen Z.Y.Chen S.K.Choi X.Chu G.Cibinetto f.Cossio j.j.Cui H.L.Dai j.P.Dai A.Dbeyssi R.E.de Boer D.Dedovich C.Q.Deng Z.Y.Deng A.Denig I.Denysenko M.Destef.nis f.De Mori B.f.ng S.S.f.ng W.X.f.ng Y.f.ng Y.Q.f.ng R.f.rinelli L.f.va f.f.ldbauer G.f.lici C.Q.f.ng j.H.f.ng Y.T.f.ng K.f.scher M.f.itsch C.D.f. j.L.f. Y.W.f. H.Gao Y.N.Gao Yang Gao S.Garbolino I.Garzia P.T.Ge Z.W.Ge C.Geng E.M.Gersabeck B.Ding X.X.Ding Y.Ding Y.Ding j.Dong L.Y.Dong M.Y.Dong X.Dong M.C.Du S.X.Du Z.H.Duan P.Egorov Y.H.f.n j.f.ng jA.Gilman K.Goetzen L.Gong W.X.Gong W.Gradl S.Gramigna M.Greco M.H.Gu Y.T.Gu C.Y.Guan Z.L.Guan A.Q.Guo L.B.Guo M.j.Guo R.P.Guo Y.P.Guo A.Guskov j.Gutierrez K.L.Han T.T.Han X.Q.Hao f.A.Harris K.K.He K.L.He f.H.Heinsius C.H.Heinz Y.K.Heng C.Herold T.Holtmann P.C.Hong G.Y.Hou X.T.Hou Y.R.Hou Z.L.Hou B.Y.Hu H.M.Hu j.f.Hu T.Hu Y.Hu G.S.Huang K.X.Huang L.Q.Huang X.T.Huang Y.P.Huang T.Hussain f.H\"olzken N.H\"usken N.in der Wiesche M.Irshad j.jackson S.janchiv j.H.jeong Q.ji Q.P.ji W.ji X.B.ji X.L.ji Y.Y.ji X.Q.jia Z.K.jia D.jiang H.B.jiang P.C.jiang S.S.jiang T.j.jiang X.S.jiang Y.jiang j.B.jiao j.K.jiao Z.jiao S.jin Y.jin M.Q.jing X.M.jing T.johansson S.Kabana N.Kalantar-Nayestanaki X.L.Kang X.S.Kang M.Kavatsyuk B.C.Ke V.Khachatryan A.Khoukaz R.Kiuchi O.B.Kolcu B.Kopf.M.Kuessner X.Kui A.Kupsc W.K\"uhn j.j.Lane P.Larin L.Lavezzi T.T.Lei Z.H.Lei H.Leithof. M.Lellmann T.Lenz C.Li C.Li C.H.Li Cheng Li D.M.Li f.Li G.Li H.Li H.B.Li H.j.Li H.N.Li Hui Li j.R.Li j.S.Li K.Li L.j.Li L.K.Li Lei Li M.H.Li P.R.Li Q.M.Li Q.X.Li R.Li S.X.Li T.Li W.D.Li W.G.Li X.Li X.H.Li X.L.Li X.Y.Li Y Institute of.High Energy Physics Chinese Academy of SciencesBeijing 100049China Beihang University Beijing 100191China Bochum Ruhr-University D-44780 BochumGermany Budker Institute of.Nuclear Physics SB RAS(BINP) Novosibirsk 630090Russia Carnegie Mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan 430079China Central South University Changsha 410083China China Center of.Advanced Science and Technology Beijing 100190China China University of.Geosciences Wuhan 430074China Chung-Ang University Seoul06974Republic of Korea COMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan f.dan University Shanghai 200433China GSI Helmholtzcentre f.r Heavy Ion Research GmbH D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China Hangzhou Normal University Hangzhou 310036China Hebei University Baoding 071002China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University Kaifeng 475004China Henan University of.Science and Technology Luoyang 471003China Henan University of.Technology Zhengzhou 450001China Huangshan College Huangshan 245000China Hunan Normal University Changsha 410081China Hunan University Changsha 410082China Indian Institute of.Technology Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INf. Laboratori Nazionali di f.ascati INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INf. Laboratori Nazionali di f.ascati INFN Sezione di PerugiaI-06100PerugiaItaly INf. Laboratori Nazionali di f.ascati University of PerugiaI-06100PerugiaItaly INf. Sezione di f.rrara INFN Sezione di FerraraI-44122FerraraItaly INf. Sezione di f.rrara University of FerraraI-44122FerraraItaly Inner Mongolia University Hohhot 010021China Institute of.Modern Physics Lanzhou 730000China Institute of.Physics and Technology Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de A

Using e^(+)e^(−)annihilation data corresponding to an integrated luminosity of.2.93 f.^(−1)taken at the center-of.mass energy√s=3.773 GeV with the BESIII detector,a joint amplitude analysis is perf.rmed on the decays D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η).The f.t f.actions of.individual components are obtained,and large interf.rences among the dominant components of.the decays D^(0)→a_(1)(1260)π,D^(0)→π(1300)π,D^(0)→ρ(770)ρ(770),and D^(0)→2(ππ)_(S)are observed in both *** the obtained amplitude model,the CP-even f.actions of.D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)are determined to be(75.2±1.1_(stat).±1.5_(syst.))%and(68.9±1.5_(stat).±2.4_(syst.))%,*** branching f.actions of.D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)are measured to be(0.688±0.010_(stat.)±0.010_(syst.))%and(0.951±0.025_(stat.)±0.021_(syst.))%,*** amplitude analysis provides an important model f.r the binning strategy in measuring the strong phase parameters of.D^(0)→4πwhen used to determine the CKM angleγ(ϕ_(3))via the B^(−)→DK^(−)decay.

关键词： BESIII D^(0)meson decays amplitude analysis CP-even f.action

Light metal compound casting

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Science China(Technological Sciences) 2009年第1期52卷 46-51页

作者： Konrad j. M. PAPIS joerg f. LOEf.LER Peter j. UGGOWITZER ETH Zurich Laboratory of Metal Physics and Technology Wolfgang-Pauli-Str. 10

‘Compound casting’simplif.es joining processes by directly casting a metallic melt onto a solid metal substrate. A continuously metallurgic transition is very important f.r industrial applications, such as joint structures of.spacef.ame constructions in transport industry. In this project, ‘compound casting’ of.light metals is investigated, aiming at weight-saving. The substrate used is a wrought aluminium alloy of.type AA5xxx, containing magnesium as main alloying element. The melts are aluminium alloys, containing various alloying elements (Cu, Si, Zn), and magnesium. By replacing the natural oxygen layer with a zinc layer, the inherent wetting dif.iculties were avoided, and compounds with f.awless interf.ces were successf.lly produced (no contraction def.cts, cracks or oxides). Electron microscopy and EDX investigations as well as optical micrographs of.the interf.cial areas revealed their continu- ously metallic constitution. Dif.usion of.alloying elements leads to heat-treatable microstructures in the vicinity of.the joining interf.ces in Al-Al couples. This permits signif.cant variability of.mechanical properties. Without signif.cantly cutting down on wettability, the f.rmation of.low-melting intermetallic phases (Al3Mg2 and Al12Mg17 IMPs) at the interf.ce of.Al-Mg couples was avoided by applying a protective coating to the substrate.

关键词： compound casting aluminium alloys magnesium alloys interf.ce structure