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Acta Metallurgica Sinica(English Letters) 2004年第4期17卷 503-508页

作者： b.zhao b.X.Xu J.Liu Z.F.Yue School of Mechanics Civil Engineering and Architecture Northwestern Polytechnic University Xi'an710072 ChinaSchool of Mechanics Civil Engineering and Architecture Northwestern Polytechnic University Xi'an710072 ChinaSchool of Mechanics Civil Engineering and Architecture Northwestern Polytechnic University Xi'an710072 ChinaSchool of Mechanics Civil Engineering and Architecture Northwestern Polytechnic University Xi'an710072 China

Indentation creep behavior with cylindrical flat indenters on the thermal barrier coating (TbC) was studied by finite element method (FEM). On ike constant applied indentation creep stress, there is a steady creep rate for each case studied for different creep properties of the TbC system. The steady creep depth rate depends on the applied indentation creep stress and size of the indenters as well as the creep properties of the bond coat of the TbC and the substrate. The possibilities to determine the creep properties of a thermal barrier system from indention creep testing were discussed. As an example, with two different size indenters, the creep properties of bond coat of the TbC system can be derived by an inverse FEM method. This study not only provides a numerical method to obtain the creep properties of the TbC system, but also extends the application of indentation creep method with cylindrical flat indenters.

关键词： thermal barrier coating (TbC) system indention creep testing,finite element creep analysis determination of creep parameters,bond coat

MAGNETORESISTANCE EFFECT ObSERVED IN Fe/Mo MULTILAYERS PREPARED bY ELECTRON bEAM EVAPORATION

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Acta Metallurgica Sinica(English Letters) 2003年第3期16卷 237-240页

作者： T.He b.zhao Y.Gao F.Zeng F.Pan Laboratory of Advanced Materials Department of Materials Science and Engineering Tsinghua UniversityBeijing 100084 China

The Fe/Mo multilayers were prepared by electron beam evaporation, the micro structure and magnetic properties of the multilayers were studied by X-ray diffraction, vibrating-sample magnetometer (VSM) et al. The experimental results revealed that the Fe/Mo multilayers in our experimental conditions behaved magnetoresistance effect with a sharp peak on magnetoresistance (MR) ratio curve, and magnetoresistance is easily saturated at low applied magnetic fields. For [Fe(1.5nm)/Mo(1.0nm)]4,2 multilayers, MR ratio could arrive to 0.1%. The antiferromagnetic interlayer coupling could be observed in some films at room temperature. The strength of the antiferromagnetic interlayer coupling J in the films is low because of the low saturation field Hs. The relationship between magnetic properties and micro structure was also discussed in this paper.

关键词： magnetoresistance multilayer antiferromagnetic interlayer coupling nonmagnetic scattering

基于INTERNET的新一代营养评估分析系统

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中国卫生统计 2003年第1期20卷 43-44页

作者：赵渝 Ryan b.zhao 上海师范大学生命与环境科学学院 200233 National Univ. of Singapore Dept.of Micro biology Faculty of Medicine Singapore637723

随着人民生活条件的改善以及各种与营养相关疾病的发病率逐年上升，人们对营养提出了更高的要求。如何定量评价某个体或群体的膳食营养状况并给予科学的膳食指导，这就要用到营养分析与评价系统。以往的营养软件多在DOS、Windows平台下... 详细信息

随着人民生活条件的改善以及各种与营养相关疾病的发病率逐年上升，人们对营养提出了更高的要求。如何定量评价某个体或群体的膳食营养状况并给予科学的膳食指导，这就要用到营养分析与评价系统。以往的营养软件多在DOS、Windows平台下开发的单机系统，专业性较强，且难以适应计算机技术的飞速发展，这就使得营养软件的使用仅局限于医院的营养主管部门及一些科学研单位，极大地制约了系统功能的发展，这就使得营养软件的使用仅局限于医院的营养主管部门及一些科研单位，极大地制约了系统功能的发挥。为改变这种状况，充分利用网络的强大功能普及营养知识，我们在本所研制开发的《上海市学生午餐营养与卫生评估》软件操作系统的基础上，开发了基于INTERNET的JS（健生）-膳食营养分析测试系统。使专业化的营养评分方法与要求人性化，能够进入到普通人的生活中，为广大人民群众提供日常膳食营养分析与科学的膳食建议。

关键词： INTERNET 营养评估分析系统膳食营养科学建议

由超拍电子伏特加速器产生的超高能伽马射线气泡

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Science bulletin 2024年第4期69卷 449-457页

作者： LHAASO Collaboration Zhen Cao Chuandong Gao Cong Li Ruo-Yu Liu Ruizhi Yang 不详 Key Laboratory of Particle Astrophyics&Experimental Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China TIANFU Cosmic Ray Research Center ChengduChina Institute of Frontier and Interdisciplinary Science Shandong UniversityQingdao 266237China School of Astronomy and Space Science Nanjing UniversityNanjing 210023China University of Science and Technology of China Hefei 230026China

We report the detection of aγ-ray bubble spanning at least 100deg2 in ultra-high energy(UHE)up to a few PeV in the direction of the star-forming region Cygnus X,implying the presence super PeVatron(s)accelerating protons to at least 10 PeV.A log-parabola form with the photon indexΓ(E)=(2.71±0.02)+(0.11±0.02)×log10(E/10 TeV)is found fitting the gamma-ray energy spectrum of the bubble *** sources,“hot spots”correlated with very massive molecular clouds,and a quasi-spherical amorphousγ-ray emitter with a sharp central brightening are observed in the *** the core of~0.5°,spatially associating with a region containing massive Ob association(Cygnus Ob2)and a microquasar(Cygnus X-3),as well as previously reported multi-TeV sources,an enhanced concentration of UHEγ-rays is observed with 2 photons at energies above 1 *** general feature of the bubble,the morphology,and the energy spectrum,are reasonably reproduced by the assumption of a particle accelerator in the core,continuously injecting protons into the ambient medium.

关键词： Cosmic rays γ-rays Interstellar medium Star cluster

Endothelial cell monolayer damaged by oxidized LDL:a promotion of platelet adhesion

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Chinese Medical Journal 1999年第11期112卷 64-64页

作者： b.Liu H.Yu U.Fassnacht b.zhao Ruhr Univ bochum Inst Physiol D-4630 Bochum Germany Shanghai Fourth Peoples Hosp Shanghai Peoples R China Univ Meunster Platelet Res Unit Muenster Germany

Generalized time-dependent generator coordinate method for induced fission dynamics

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Frontiers of physics 2024年第4期19卷 1-12页

作者： b.Li D.Vretenar T.Nikšić J.zhao P.W.zhao J.Meng State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871China Physics Department Faculty of ScienceUniversity of Zagreb10000 ZagrebCroatia Center for Circuits and Systems Peng Cheng LaboratoryShenzhen 518055China

The generalized time-dependent generator coordinate method(TD-GCM)is extended to include pairing *** correlated GCM nuclear wave function is expressed in terms of time-dependent generator states and weight *** particle–hole channel of the effective interaction is determined by a Hamiltonian derived from an energy density functional,while pairing is treated dynamically in the standard bCS approximation with time-dependent pairing tensor and single-particle occupation *** the inclusion of pairing correlations,various time-dependent phenomena in open-shell nuclei can be described more *** model is applied to the description of saddle-to-scission dynamics of induced *** generalized TD-GCM charge yields and total kinetic energy distribution for the fission of 240Pu,are compared to those obtained using the standard time-dependent density functional theory(TD-DFT)approach,and with available data.

关键词： nuclear density functional theory generator coordinate method fission dynamics

Positive ionospheric storm effects at Latin America longitude during the superstorm of 20-22 November 2003:revisit

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Positive ionospheric storm effects at Latin America longitud...

New achievements in ultralow threshold semiconductor lasers

中国科学院地质与地球物理研究所2012年度（第12届）学术年会

作者： b.zhao W.Wan J.Lei Y.Wei Y.Sahai b.Reinisch beijing National Observatory of Space Environment Institute of Geology and GeophysicsChinese Academy of Sciences State Key Laboratory of Space Weather Chinese Academy of Sciences School of Earth and Space Sciences University of Science and Technology of China Center for Atmospheric Research University of MassachusettsLowellMAUSA

Positive ionospheric storm effects that occurred during the superstorm on 20 November 2003 are investigated using a combination of ground-based Global Positioning System(GPS) total electron content(TEC),and the meridian chain of ionosondes distributed along the Latin America longitude of～280°*** the ground-based GPS TEC and ionosonde electron density profile data reveal significant enhancements at mid-low latitudes over the 280°E region during the main phase of the November 2003 superstorm. The maximum enhancement of the topside ionospheric electron content is 3.2-7.7 times of the bottomside ionosphere at the locations of the ionosondes distributed around the midand low ***,the height of maximum electron density exceeds 400 km and increases by 100 km compared with the quiet day over the South American area from middle to low latitudes,which might have resulted from a continuous eastward penetration electric field and storm-generated equatorward *** results do not support the conclusions of Yizengaw et al.(2006),who suggested that the observed positive storm over the South American sector was mainly the consequence of the changes of the bottomside ionosphere. The so-called "unusual" responses of the topside ionosphere for the November 2003 storm in Yizengaw et al.(2006) are likely associated with the erroneous usage of magnetometer and incomplete data.

关键词： Ionosphere(Ionospheric disturbances)

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New achievements in ultralow threshold semiconductor lasers

A Superconducting Magnet with Center Field of 10 T and φ100 mm Warm bore

1992 International Conference on Lasers and Optoelectronics(ICLOE’92)

作者： T.R.Chen b.zhao L.E.Eng Y.H.Zhuang A.Yariv T.J.Watson Sr.Laboratories of Applied Physics 128-95 California Institute of Technology

＜正＞Various semiconductor laser material system and device structures which have led to the ultralow threshold current（≤1 mA） operation are reviewed with an emphasis on the quantum well（QW）,especially strained QW, *** date,CW threshold current as low as～1 mA for as cleaved lasers and 0.35 mA（pulsed 0.25 mA） for high reflectivity coated lasers are *** low threshold lasers also display excellent dynamic behavior,a direct current modulation bandwidth of 4.6 GHz at a bias current of only 1 mA above threshold has been demonstrated..

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电工电能新技术 2006年第4期25卷 8-14,80页

作者： Q.Wang L.Yan b.zhao S.Song Y.Dai Y.Lei H.Wang H.-C.Huang Institute of Electrical Engineering Chinese Academy of SciencesBeijing 100080China Diamond Light Source Ltd.Diamond House Chilton Didcot OXONOX11 0DEUK

Aconduction-cooled superconducting magnet with central field of 10Tand warmbore of 100 mmwas designed based on a Nb3Sn and two NbTi superconducting *** the first stage,the NbTi coils havebeen fabricated ***-stage 4 KGifford-McMahon(GM) cryocooler withthe second-stage powerin1W,4.2Kis used to cool the magnet fromroomtemperature to 4 *** superconducting magnet with thesame power supply has the operating current of *** magnet can be rotated with a support frame to beoperated with either horizontal or vertical *** of bi-2223 hightemperature superconductingcurrentleads was employedto reduce heat leakage into *** NbTi coils reachto the operating current of120Awithout training effect to be observed duringchargingof the magnet during40 minutes chargingtime andgenerate the center field of *** training effect inthe NbTi magnet directly cool-down by cryocooler andinter-winding support structure in magnet can be *** superconducting magnet has beenstably operatedfor more than 275 hours with *** this paper,the detailed design,fabrication,stressanalysis and quench protection characteristics are presented.

关键词： conduction-cooled superconducting magnet FEAdetailed model training effect

Optimization of performance of the KM2A full array using the Crab Nebula

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Chinese Physics C 2024年第6期48卷 169-178页

作者：曹臻 F.Aharonian 安琪阿西克古白云翔包逸炜 D.bastieri 毕效军毕玉江蔡金庭曹晴曹文羽曹喆常进常劲帆陈尚明陈恩生陈亮陈林陈龙陈明君陈玛丽陈起辉陈素弘陈天禄陈阳程宁程耀东崔明阳崔树旺崔晓红崔昱东戴本忠代洪亮戴子高单增罗布 D.della Volpe 董绪强段凯凯樊军辉范一中方军方堃冯存峰封莉冯少辉丰晓婷冯有亮 S.Gabici 高博高川东高林青高启高卫高伟康葛茂茂耿利斯 G.Giacinti 龚光华苟全补顾旻皓郭福来郭晓磊郭义庆郭莹莹韩毅昂何会海贺昊宁何佳银何新波何钰 M.Heller 贺远强侯博文侯超侯贤胡红波胡铨胡世聪黄代绘黄天奇黄文俊黄性涛黄晓渊黄勇黄志成季筱璐贾焕玉贾康江琨姜晓巍姜泽军金敏康明铭柯通 D.Kuleshov.K.Kurinov 李兵兵李澄李骢李丹李飞李海波李会财李华阳李军李剑李捷李凯李文龙李文莲李秀荣李昕李一卓李哲黎卓梁恩维梁云峰林苏杰刘冰刘成刘栋刘虎刘海东刘佳刘江来刘金艳刘茂元柳若愚刘四明刘伟刘怡刘以农鲁睿罗晴吕洪魁马伯强马玲玲马欣华毛基荣闵振 W.Mitthumsiri 穆慧君南云程 A.Neronov 区子维庞彬宇 P.Pattarakijwanich 裴致远齐孟尧祁业情乔冰强秦家军 D.Ruffolo A.Sáiz D.Semikoz 邵澄宇邵琅 O.Shchegolev 盛祥东舒富文宋慧超 Yu.V.Stenkin V.Stepanov 苏扬孙秦宁孙晓娜孙志斌谭柏轩唐庆文唐泽波田文武王超王昌贝王广威王洪光王惠惠王建成汪凯王利苹王玲玉王培汉王冉王为王祥高王祥玉王阳王玉东王岩谨王忠海王仲翔王振王铮韦大明魏俊杰魏永健文韬吴超勇吴含荣武莎吴雪峰吴雨生席邵强夏捷夏君集项光漫肖迪泫肖刚辛广广辛玉良邢祎熊峥徐东莲徐仁峰徐仁新徐伟立薛良闫大海颜景志颜田杨朝文杨帆杨冯帆杨何文杨佳盈杨莉莉杨明洁杨睿智杨深邦姚玉华姚志国叶一锰尹丽巧尹娜游晓浩游智勇于艳红袁强岳华曾厚敦曾婷轩曾玮查敏张彬彬张丰张海明张恒英张建立张丽霞张力张鹏飞张佩佩张瑞张少博张少如张寿山张潇张笑鹏张云峰张毅张勇赵兵赵静赵雷赵立志赵世平郑福周斌周浩周佳能周猛周平周荣周勋秀祝成光祝凤荣朱辉朱科军左雄 LHAASO Collaboration Key Laboratory of Particle Astrophyics&Experimental Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China Tianfu Cosmic Ray Research Center Chengdu 610000China Dublin Institute for Advanced Studies 31 Fitzwilliam Place2 DublinIreland Max-Planck-Institut for Nuclear Physics P.O.Box 10398069029 HeidelbergGermany State Key Laboratory of Particle Detection and Electronics China University of Science and Technology of China Hefei 230026China School of Physical Science and Technology&School of Information Science and Technology Southwest Jiaotong UniversityChengdu 610031China School of Astronomy and Space Science Nanjing UniversityNanjing 210023China Center for Astrophysics Guangzhou UniversityGuangzhou 510006China Hebei Normal University Shijiazhuang 050024China Key Laboratory of Dark Matter and Space Astronomy&Key Laboratory of Radio Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China Tsung-Dao Lee Institute&School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Key Laboratory for Research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Key Laboratory of Cosmic Rays(Tibet University) Ministry of EducationLhasa 850000TibetChina National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China School of Physics and Astronomy(Zhuhai)&School of Physics(Guangzhou)&Sino-French Institute of Nuclear Engineering and Technology(Zhuhai) Sun Yat-sen UniversityZhuhai 519000&Guangzhou 510275China School of Physics and Astronomy Yunnan UniversityKunming 650091China Département de Physique Nucléaire et Corpusculaire Facultéde SciencesUniversitéde Genève24 Quai Ernest Ansermet1211 GenevaSwitzerland Institute of Frontier and Interdisciplinary Science Shandong UniversityQingdao 266237China APC Universit'e Paris Cit'eCNRS/IN2P3CEA/IRFUObservat

The full array of the Large High Altitude Air Shower Observatory(LHAASO)has been in operation since July *** its kilometer-square array(KM2A),we optimized the selection criteria for very high and ultrahigh energyγ-rays using data collected from August 2021 to August 2022,resulting in an improvement in significance of the detection in the Crab Nebula of approximately 15%,compared with that of previous *** the implementation of these new selection criteria,the angular resolution was also significantly improved by approximately 10%at tens of *** aspects of the full KM2A array performance,such as the pointing error,were also calibrated using the Crab *** resulting energy spectrum of the Crab Nebula in the energy range of 10-1000 TeV are well fitted by a log-parabola model,which is consistent with the previous results from LHAASO and other experiments.

关键词： γ-ray Crab Nebula significance