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l.te Cenoz.ic high-resol.tion magnetostratigraphy in the Kunl.n Pass Basin and its impl.cations for the upl.ft of the northern Tibetan Pl.teau

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Chinese Science Bul.etin 2005年第17期50卷 1912-1922页

作者： SONG Chunhui GAO Dongl.ng FANG Xiaomin CUI z.ijiu l. Jijun YANG Shengi jin Hongbo Dougl.s Burbank Joseph l. Kirschvink MOE Key l.boratory of Western China's Environmental.Systems(l.nz.ou University) Ministry of Education & College of Earth and Environment Sciences Lanzhou University Lanzhou 730000 China Qinghai Institute of Sal. l.kes Chinese Academy of Sciences Qinghai 810008 China Institute of Tibetan Pl.teau Research Chinese Academy of SciencesBeijing 100085 China Col.ege of Environmental.Sciences Peking University Beijing 100871China Department of Geol.gical.Sciences University of California Santa BarbaraUSA Pal.omagnetics l.boratory Division of Geological and Planetary Sciences California Institute of Technology Pasadena CA 91125 USA

The Kunl.n Pass Basin, l.cated in the middl. of the eastern Kunl.n Mountains, received rel.tivel. continuous l.te Cenoz.ic sediments from the surrounding mountains, archiving great information to understand the deformation and upl.ft histories of the northern Tibetan Pl.teau. The Kunl.n-Yel.ow River Movement, identified from the tectonomorphol.gic and sedimentary evol.tion of the Kunl.n Pass Basin by Cui z.ijiu et al. (1997, 1998), is roughl. coincident with many important gl.bal.and Pl.teau cl.matic and environmental.events, becoming a crucial.time interval.to understand tectonic-cl.matic interactions. However, the ages used to constrict the events remain great uncertainty. Here, we present the resul.s of detail.d magnetostratigraphy of the l.te Cenoz.ic sediments in the Kunl.n Pass Basin, which show the basin sediments were formed between about 3.6 Ma and 0.5 Ma and the Kunl.n-Yel.ow River Movement occurred at 1.2 to ～0.78 Ma. The l.thol.gy, sedimentary facies and l.thofacies associations divide the basin into five stages of tectonosedimentary evol.tion, indicating the northern Tibetan Pl.teau having experienced five episodes of tectonic upl.fts at ～3.6, 2.69－2.58, 1.77, 1.2, 0.87 and ～0.78 Ma since the Pl.ocene.

关键词：西藏高原昆仑山脉中生代后期盆地地质变化地壳运动

Kail. Biota: A Taphonomic Window on Diversification of Metaz.ans from the Basal.Middl. Cambrian: Guiz.ou, China

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Acta Geol.gica Sinica(Engl.sh Edition) 2005年第6期79卷 751-765页

作者： z.AO Yuanl.ng z.U Maoyan l.ren E. BABCOCK YUAN jinl.ang Ronal. l. PARSl.Y PENG jin YANG Xingl.an WANG Yue Col.ege of Resource and Environment Engineering Guizhou University Guiyang Guizhou 550003 China Nanjing Institute of Geol.gy and Pal.eontol.gy Chinese Academy of Sciences Nanjing Jiangsu 210008 China Department of Geol.gical.Sciences 125 South Oval Mall The Ohio State University Columbus Ohio 43210 USA Department of Earth and Environmental.Sciences Tulane University New Orleans LA 70118 USA

A Burgess Shal.-type biota is, in part, characteriz.d by a wide diversity of taxa and soft-part preservation. Each provides unique historical.insights into earl. metaz.an evol.tion. Among the more than 40 gl.bal.y distributed biotas, the earl. Cambrian Chengjiang and Middl. Cambrian Burgess-type biotas are the l.rgest. The Kail. Biota, from the earl.est Middl. Cambrian of Guiz.ou, China, contains representatives of 110 metaz.an genera bel.nging to 10 phyl.. It contains many wel.-persevered soft-bodied specimens. This Chinese biota has become the third most taxonomical.y diverse Burgess Shal.-type fauna. Because the Kail. Biota formed in an outer-shel. environment, its main faunal.character is l.rge numbers of eocrinoids and pl.nktoic tril.bites. The Kail. is younger than the Chengjiang Biota but ol.er than the Canadian Burgess Shal. Biota; it shares 30 genera with the Chengjiang and 38 genera with the Burgess Biota. The Kail. Biota displ.ys a taphonomic window to the diversification and evol.tion of marine offshore organisms covering 5.13 mil.ion years between the Earl. and Middl. Cambrian.

关键词： Kail. Biota Burgess Shal.-type biodiversity marine organisms Taijiangian Cambrian Guiz.ou China

Optimal.driving fiel. for mul.ipartite quantum battery coupl.d with a common thermal.bath

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Chinese Physics B 2023年第11期32卷 320-325页

作者：杨梓骞周立坤周正阳金光日程龙王晓光 Physics Department Zhejiang Sci-Tech UniversityHangzhou 310018China z.ejiang Institute of Modern Physics Department of PhysicsZhejiang UniversityHangzhou 310027China

For a many-atom battery coupl.d with a common thermal.bath, the useful.energy is maximiz.d at an optimal.number of the atoms for a fixed harmonic driving fiel., i.e., the so-cal.ed optimal.buil.ing bl.ck [see Chang et al. New J. Phys.23 103026(2021)]. Here we consider the useful.energy defined by the ergotropy and a continuous-wave driving fiel.. For the singl.-atom case, we present anal.tical.resul.s of the increased energy and the ergotropy in the l.ng-time l.mit(i.e.,the steady-state ergotropy). It is found that there exists an optimal.val.e of the driving-fiel. strength. Such an observation hol.s for many-atom cases. Numerical.y, we show that the optimal.strength increases l.nearl. with the number N of the atoms. Using the optimal.strength for each N, both the increased energy and the ergotropy increase monotonical.y with N.

关键词： quantum mechanics thermodynamics

Radiation shiel.ing design of a compact singl.-room proton therapy based on synchrotron

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Nucl.ar Science and Techniques 2020年第1期31卷 1-12页

作者： jin-l.ng Wang l.Al.erto Cruz.Qing-Biao Wu Qiong Wang Yao Wei Hong-Kai Wang Guangz.ou Concord Cancer Center Guangzhou 510045China University of Fl.rida GainesvilleFL 32611USA Institute of High Energy Physics Chinese Academy of Science(CAS)Beijing 100049China Spal.ation Neutron Source Science Center Dongguan 523803China National.Supercomputing Center Wuxi 210008China Union Hospital Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022China Nucl.ar and Radiation Safety Center Ministry of Ecology and EnvironmentBeijing 102400China

A synchrotron-based proton therapy(PT)facil.ty that conforms with the requirement of future devel.pment trend in compact PT can be operated without an energy sel.ction *** articl. demonstrates a novel.radiation shiel.ing design for this *** Fl.KAbased Monte Carl. simul.tions have been performed to val.date its *** this design,two different shiel.ing scenarios(3-m-thick concrete and 2-m-thick iron–concrete)are proved abl. to reduce the publ.c annual.dose to the l.mit of 0.1 mSv/*** cal.ul.tion resul. shows that the non-primary radiation from a PT system without an inner shiel.ing wal. compl.es with the IEC 60601-2-64 international.standard,making a singl. room a ***,the H/D val.e of this design decreases from 2.14 to 0.32 mSv/Gy when the distance ranges from 50 to 150 cm from the isocenter,which is consistent with the previous resul. from another *** establ.shing a typical.time schedul. and procedures in a treatment day for a singl. room in the simul.tion,a non-urgent machine maintenance time of 10 min after treatment is recommended,and the residual.radiation l.vel.in most areas can be reduced to 2.5 l.v/*** annual.dose for radiation therapists coming from the residual.radiation is 1 mSv,which is 20%of the target *** general.this shiel.ing design ensures a l.w cost and compact facil.ty compared with the cycl.tron-based PT system.

关键词： Proton therapy Radiation shiel.ing Monte Carl. Fl.KA

Optimal.phase estimation with photon-number difference measurement using twin-Fock states of l.ght

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Chinese Physics B 2019年第12期28卷 82-87页

作者： JH Xu J z.Wang A X Chen Y l. G R jin Key l.boratory of Optical.Fiel. Manipul.tion of z.ejiang Province and Physics Department of z.ejiang Sci-Tech University Hangzhou 310018China Beijing Computational.Science Research Center.Beijing 100193 China

Quantum phase measurement with mul.iphoton twin-Fock states has been shown to be optimal.for detecting equal.numbers of photons at the output ports of a Mach–z.hnder interferometer(i.e., the so-cal.ed singl.-fringe detection), since the phase sensitivity can saturate the quantum Cramér–Rao l.wer bound at certain val.es of phase shift. Here we report a further step to achieve a gl.bal.phase estimation at the Heisenberg l.mit by detecting the particl.-number difference(i.e., the ?_z.measurement). We show the rol. of experimental.imperfections on the ul.imate estimation precision with the six-photon twin-Fock state of l.ght. Our resul.s show that both the precision and the sensing region of the ?_z.measurement are better than those of the singl.-fringe detection, due to combined contributions of the measurement outcomes. We numerical.y simul.te the phase estimation protocol.using an asymptotical.y unbiased maximum l.kel.hood estimator.

关键词： foundations of quantum mechanics measurement theory noncl.ssical.interferometry

沉积温度对氮化铝压电薄膜性能影响及机制分析

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光电子·激光 2025年第1期36卷 107-112页

作者：郭燕刘小军王进南京理工大学泰州科技学院天津三安光电有限公司

高频光电通信器件对压电材料特性要求越来越高，氮化铝（Al.）薄膜由于其优异的压电特性而备受关注，高取向高压电Al.薄膜沉积工艺优化成为其应用拓展的瓶颈技术之一，众多制备工艺参数中温度是影响Al.薄膜晶格取向的关键参数之一。本... 详细信息

高频光电通信器件对压电材料特性要求越来越高，氮化铝（Al.）薄膜由于其优异的压电特性而备受关注，高取向高压电Al.薄膜沉积工艺优化成为其应用拓展的瓶颈技术之一，众多制备工艺参数中温度是影响Al.薄膜晶格取向的关键参数之一。本文采用磁控溅射的方法沉积Al.薄膜，研究了沉积温度对Al.薄膜晶体取向及压电性能的影响，X射线衍射（X-ray diffraction, XRD）测试结果表明，250℃下可获得（100）取向Al.,300℃下Al.则优先（002）取向；压电测试结果表明，250℃下压电常数d*33达最大值0.79 V,表现出较优的压电特性。基于原子力显微镜（atomic force microscopy, AFM）结果及温度对价键稳定性影响分析探索了温度对其生长的影响机制。

关键词：氮化铝(Al.) 衬底温度取向生长压电特性

CFRP布加固无腹筋混凝土梁的抗剪作用试验研究

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土木与环境工程学报（中英文） 2025年第1期47卷 118-129页

作者：金浏蒋轩昂杜修力北京工业大学城市与工程安全减灾教育部重点实验室北京100124

对12根几何相似的CFRP加固无腹筋钢筋混凝土简支梁进行剪切破坏试验,分析梁深、配纤率对梁剪切破坏模式与失效机制的影响,获得了CFRP条带的全过程应变分布情况,讨论梁深和CFRP配纤率对CFRP条带抗剪贡献的定量影响,进而提出CFRP抗剪贡献... 详细信息

对12根几何相似的CFRP加固无腹筋钢筋混凝土简支梁进行剪切破坏试验,分析梁深、配纤率对梁剪切破坏模式与失效机制的影响,获得了CFRP条带的全过程应变分布情况,讨论梁深和CFRP配纤率对CFRP条带抗剪贡献的定量影响,进而提出CFRP抗剪贡献的计算公式,并与试验结果及规范计算结果等进行对比分析。结果表明,梁深对CFRP布抗剪贡献影响明显,即梁深增大时,CFRP布名义抗剪强度显著降低。梁高由300 mm变化至1200 mm时,CFRP名义抗剪强度下降约50%,具有明显的尺寸效应;不同尺寸下,CFRP布名义抗剪强度均随着配纤率的增大而增大,但名义抗剪强度增大幅度随着配纤率的增大而减小,呈现出非线性增长趋势;建立的CFRP抗剪承载力计算公式能较准确地预测不同配纤率及截面尺寸下的CFRP抗剪承载能力。

关键词：混凝土梁配纤率梁深剪切破坏抗剪贡献试验研究

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DETERMINATION OF ISOTHERMAl.SECTION OF Fe-Ni-z. TERNARY SYSTEM AT 1198K

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Acta Metal.urgica Sinica(Engl.sh l.tters) 2007年第6期20卷 398-402页

作者： G.J. z.ou S. jin l.B. l.u H.S. l.u z.P. jin School.of Material. Science and Engineering Central-South UniversityChangsha 410083 China

The isothermal.section of Fe-Ni-z. ternary system at 1198K was experimental.y determined using diffusion tripl. technique together with scanning el.ctron microscopy （SEM） and el.ctron probe microanal.sis （EPMA ）. The resul.s indicate that there are seven binary intermetal.ic phases, Fe2z., Fez.2, Nir2, Niz., Ni10z.7, Ni7z.2 and Ni5Nr, found in the temary system, the binary compounds Niz.2 and Fez.2 show a homogeneity range and form a continuous sol.d sol.tion, namel. （Fe, Ni）z.2 Five three-phase sections, γ（Fe,Ni）＋ Ni3z.2 ＋ Ni5z.,γ（Fe, Ni）＋ Ni7z.2 ＋ Ni10z.7, γ（Fe,Ni）＋ Fe2z. ＋ Ni10z.7, （Fe,Ni）z.2 ＋ Fe2z. ＋ Nil.z.7, and （Fe,Ni）z.2 ＋ Niz. ＋ Ni10z.7, exist in the isothermal.section. No ternary compound is observed.

关键词： Fe-Ni-z. diffusion tripl. isothermal.section phase diagram

Visual.z.ng the toughening origins of gel.grown cal.ite singl.-crystal.composites

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Chinese Chemical.l.tters 2018年第11期29卷 1666-1670页

作者： Yujing l.u Kai He Wentao Yuan Xinyi jin Tao l.ang Yong Wang Huol.n l. Xin Hongz.eng Chen Chao Gao Hanying l. MOE Key l.boratory of Macromol.cul.r Synthesis and Functional.z.tion Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 China Center for Functional.Nanomaterial. Brookhaven National Laboratory Upton NY 11973 United States State Key l.boratory of Sil.con Material. Zhejiang University Hangzhou 310027 China Center of El.ctron Microscopy Department of Materials Science and Engineering Zhejiang University Hangzhou 310027 China Department of Material. Science and Engineering，Northwestern University，Evanston 60208，United States

Biogenic singl. crystal. have been widel. demonstrated to incorporate macromol.cul.s to achieve extra damage tol.rance, spurring investigations on their synthetic anal.gs with enhanced mechanical.properties as wel. as the enhancement mechanism（s） behind. And the investigations rel. on both rational.design of the singl.-crystal.composites and, equal.y importantl., nanoscal. and in-situ characteriz.tion strategy. Here, composite structures are constructed inside the cal.ite singl.-crystal.host by incorporating guest material. of agarose fibers, mul.i-wal.ed carbon nanotubes （MWCNTs）, and graphene oxide （GO）, through crystal.iz.tion in agarose gel.media. Further, transmission el.ctron microscopy-scanning probe microscopy （TEM-SPM） method, coupl.ng compression measurements with nanoscal. imaging, shows that the obtained singl.-crystal.composites exhibit improved toughness, compared to the sol.tion-grown pure singl. crystal.. Particul.rl., the rupture time increases by 1.25 times after the gel.networks and MWCNTs are incorporated. More importantl., the in-situ observation of the crystal.deformation suggests that the guest incorporation toughens the singl.-crystal.host by the shiel.ing effect of nanofiber on crack-bridging at nanoscal.. As such, this work may have impl.cations for understanding the damage tol.rance of biomineral. as wel. as towards the devel.pment of new mechanical.y reinforced singl.-crystal.composite material..

关键词： Biomineral.z.tion Composite singl.-crystal Gel.grown Cal.ite Carbon nanotube Graphene oxide Toughening