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Search for electron-antineutrinos associated with gravitational-wave events GW150914,GW151012,GW151226,GW170104,GW170608,GW170814,and GW170817 at Daya Bay

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Chinese Physics C 2021年第5期45卷 190-201页

作者： f.P.An A.B.Balantekin h.r.Band m.Bishai S.Blyth G.f.Cao J.Cao J.f.Chang Y.Chang h.S.chen S.m.chen Y.chen Y.x.chen J.cheng Z.K.cheng J.J.Cherwinka m.C.Chu J.P.Cummings O.Dalager f.S.Deng Y.Y.Ding m.V.Diwan t.Dohnal J.Dove m.Dvorak D.A.Dwyer J.P.Gallo m.Gonchar G.h.Gong h.Gong W.Q.Gu J.Y.Guo L.Guo x.h.Guo Y.h.Guo Z.Guo r.W.hackenburg S.hans m.he K.m.heeger Y.K.heng A.higuera Y.K.hor Y.B.hsiung B.Z.hu J.r.hu t.hu Z.J.hu h.x.huang x.t.huang Y.B.huang P.huber D.E.Jaffe K.L.Jen x.L.Ji x.P.Ji r.A.Johnson D.Jones L.Kang S.h.Kettell S.Kohn m.Kramer t.J.Langford J.Lee J.h.C.Lee r.t.Lei r.Leitner J.K.C.Leung f.Li J.J.Li Q.J.Li S.Li S.C.Li W.D.Li x.N.Li x.Q.Li Y.f.Li Z.B.Li h.Liang C.J.Lin G.L.Lin S.Lin J.J.Ling J.m.Link L.Littenberg B.r.Littlejohn J.C.Liu J.L.Liu C.Lu h.Q.Lu J.S.Lu K.B.Luk x.B.ma x.Y.ma Y.Q.ma C.marshall D.A.martinez Caicedo K.t.meDonald r.D.mcKeown Y.meng J.Napolitano D.Naumov E.Naumova J.P.Ochoa-ricoux A.OIshevskiy h.-r.Pan J.Park S.Patton J.C.Peng C.S.J.Pun f.Z.Qi m.Qi x.Qian N.raper J.ren C.morales reveco r.rosero B.roskovec x.C.ruan h.Steiner J.L.Sun t.tmej K.treskov W.-h.t.e C.E.tull B.Viren V.Vorobel C.h.wang J.wang m.wang N.Y.wang r.G.wang W.wang W.wang x.wang Y.wang Y.f.wang Z.wang Z.wang Z.m.wang h.Y.Wei L.h.Wei L.J.Wen K.Whisnant C.G.Wh.t. h.L.h.Wong E.Worcester D.r.Wu f.L.Wu Q.Wu W.J.Wu D.m.xia Z.Q.xie Z.Z.xing J.L.xu t.xu t.xue C.G.yang L.yang Y.Z.yang h.f.Yao m.Ye m.Yeh B.L.Young h.Z.Yu Z.Y.Yu B.B.Yue S.Zeng Y.Zeng L.Zhan C.Zhang f.Y.Zhang h.h.Zhang J.W.Zhang Q.m.Zhang x.t.Zhang Y.m.Zhang Y.x.Zhang Y.Y.Zhang Z.J.Zhang Z.P.Zhang Z.Y.Zhang J.Zhao L.Zhou h.L.Zhuang J.h.Zou Instiute of modern Physics East China University of Science and TechnologyShanghai 200237 University of Wisconsin MadisonWisconsin 53706 Wright Laboratory and Department of Physics Yale UniversityNew HavenConnecticut 06520 Brookhaven National Laboratory UptonNew York 11973 Department of Physics National Taiwan UniversityTaipei Institute of high Energy Physics Beijing 100049 National United University Miao-Li Department of Engineering Physics Tsinghua UniversityBejing 100084 Shenzhen University Shenzhen 518060 Sun Yat-Sen(Zhongshan)University Guangzhou North China Electric Power University Bejjing 102206 Chinese University of hong Kong Hong Kong 999077 Siena College LoudonvilleNew York 12211 Department of Physics and Astronomy University of CaliforniaIrvineCaliformia 92697 University of Science and technology of China Hefei 230026 Charles University Faculty of Mathematics and PhysicsPrague Department of Physics University of llinois at Urbana-ChampaignUrbanaIlinois 61801 Lawrence Berkeley National Laboratory BerkeleyCalifornia 94720 Department of Physics Illinois Institute of TechnologyChicagoIllinois 60616 Joint Institute for Nuclear research DubnaMoscow Region Beijing Normal University Beijing 100875 Department of Nuclear Science and technology School of Energy and Power EngineeringXi'an Jiaotong UniversityXi'an 710049 Department of Physics University of HoustonHoustonTexas 77204 China Institute of Atomic Energy Beijing 102413 Shandong University Jinan 250100 Guangxi University Nanning 530004 Center for Neutrino Physics Virginia TechBlacksburgVirginia 24061 Institute of Physics National Chiao-Tung UniversityHsinchu Department of Physics University of CincinnatiCincinnatiOhio 45221 Department of Physies Collge of Science and TechnologyTemple UniversityPhiladelphiaPennsylvania 19122 Dongguan University of technology Dongguan 523808 Department of Physics University of CaliforniaBerkeleyCalifornia 94720 Department of Physics The University of Hong KongPokfulamHong Kong 999077 School

the establishment of a possible connection between neutrino emission and gravitational-wave(GW)bursts is important to our understanding of the physical processes th.t.occur when black holes or neutron stars *** the Daya Bay experiment,using the data collected from December 2011 to August 2017,a search was per-formed for electron-antineutrino signals th.t.coincided with detected GW events,including GW150914,GW151012,GW151226,GW170104,GW170608,GW 170814,and GW *** used three time windows of±10,±500,and±1000 s relative to the occurrence of the GW events and a neutrino energy range of 1.8 to 100 meV to search for correlated neutrino *** detected electron-antineutrino candidates were consistent with.t.e expected background rates for all the three time *** monochromatic spectra,we found upper limits(90%confidence level)of the electron-antineutrino fluence of(1.13-2.44)×10^(11)cm^(-2)at 5 meV to 8.0×10^(7)cm^(-2)at 100 meV for the three time w *** the assumption of a fermi-Dirac spectrum,the upper limits were found to be(5.4-7.0)×10^(9)cm^(2)for the three time windows.

关键词： grav itational waves electron-antineutrinos fluence upper limit

Line-of-shower trigger method to lower energy threshold for GrB detection using LhAASO-WCDA

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radiation Detection technology and methods 2021年第4期5卷 531-541页

作者： f.Aharonian Q.An Axikegu L.x.Bai Y.x.Bai Y.W.Bao D.Bastieri x.J.Bi Y.J.Bi h.Cai J.t.Cai Z.Cao Z.Cao J.Chang J.f.Chang x.C.Chan B.m.chen J.chen L.chen L.chen L.chen m.J.chen m.L.chen Q.h.chen S.h.chen S.Z.chen t.L.chen x.L.chen Y.chen N.chen Y.D.chen S.W.Cui x.h.Cui Y.D.Cui B.Z.Dai h.L.Dai Z.G.Dai Danzengluobu D.della Volpe B.D’Ettorre Piazzoli x.J.Don J.h.fan Y.Z.fan Z.x.fan J.fang K.fan C.f.feng L.feng S.h.fen Y.L.feng B.Gao C.D.Gao Q.Gao W.Gao m.m.Ge L.S.Gen G.h.Gong Q.B.Gou m.h.Gu J.G.Guo x.L.Guo Y.Q.Guo Y.Y.Guo Y.A.han h.h.he h.N.he J.C.he S.L.he x.B.he Y.he m.heller Y.K.hor C.hou x.hou h.B.hu S.hu S.C.hu x.J.hu D.h.huang Q.L.huan W.h.huang x.t.huang Z.C.huang f.Ji x.L.Ji h.Y.Jia K.Jiang Z.J.Jiang C.Jin D.Kuleshov K.Levochkin B.B.Li C.Li C.Li f.Li h.B.Li h.C.Li h.Y.Li J.Li K.Li W.L.Li x.Li x.Li x.r.Li Y.Li Y.Z.Li Z.Li Z.Li E.W.Liang Y.f.Liang S.J.Lin B.Liu C.Liu D.Liu h.Liu h.D.Liu J.Liu J.L.Liu J.S.Liu J.Y.Liu m.Y.Liu r.Y.Liu S.m.Liu W.Liu Y.N.Liu Z.x.Liu W.J.Long r.Lu h.K.Lv B.Q.ma L.L.ma x.h.ma J.r.mao A.masood W.mitthumsiri t.montaruli Y.C.Nan B.Y.Pang P.Pattarakijwanich Z.Y.Pei m.Y.Qi D.ruffolo V.rulev A.Sáiz L.Shao O.Shchegolev x.D.Shen J.r.Shi h.C.Song Yu.V.Stenkin V.Stepanov Q.N.Sun x.N.Sun Z.B.Sun P.h.t.tam Z.B.tang W.W.tian B.D.Wan C.wang h.wang h.G.wang J.C.wang J.S.wang L.P.wang L.Y.Wan r.N.wang W.wang W.wang x.G.wang x.J.Wan x.Y.wang Y.D.Wan Y.J.Wan Y.P.wang Z.wang Z.wang Z.h.wang Z.x.wang D.m.Wei J.J.Wei Y.J.Wei t.Wen C.Y.Wu h.r.Wu S.Wu W.x.Wu x.f.Wu S.Q.xi J.xia J.J.xia G.m.xiang G.xiao h.B.xiao G.G.xin Y.L.xin Y.xing D.L.xu r.x.xu L.xue D.h.yan C.W.yang f.f.yang J.Y.yang L.L.yang m.J.yan r.Z.yang S.B.yang Y.h.Yao Z.G.Yao Y.m.Ye L.Q.Yin N.Yin x.h.You Z.Y.You Y.h.Yu Q.Yuan h.D.Zeng t.x.Zeng W.Zeng Z.K.Zeng m.Zha x.x.Zhai B.B.Zhang h.m.Zhang h.Y.Zhang J.L.Zhang J.W.Zhang L.Zhang L.Zhang L.x.Zhang P.f.Zhang P.P.Zhang r.Zhang S.r.Zhang S.S.Zhan x.Zhang x.P.Zhan Y.Zhan Y.Zhang Y.f.Zhang Y.L.Zhan B.Zhao J.Zhao L.Zhao L.Z.Zhao S.P.Zhao f.Zheng Y.Zheng B.Zhou h.Zhou J.N.Zhou P.Zhou r.Zhou x.x.Zhou C.G. Key Laboratory of Particle Astrophysics&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 ChengduSichuanChina State Key Laboratory of Particle Detection and Electronics BeijingChina University of Science and technology of China Hefei 230026AnhuiChina Department of Engineering Physics Tsinghua UniversityBeijing 100084China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China National Space Science Center Chinese Academy of SciencesBeijing 100190China School of Physics Peking UniversityBeijing 100871China Center for Astrophysics Guangzhou UniversityGuangzhou 510006GuangdongChina School of Physics and Astronomy&School of Physics(Guangzhou) Sun Yat-sen UniversityZhuhai 519000GuangdongChina School of Physical Science and technology Guangxi UniversityNanning 530004GuangxiChina hebei Normal University Shijiazhuang 050024HebeiChina School of Physics and microelectronics Zhengzhou UniversityZhengzhou 450001HenanChina School of Astronomy and Space Science Nanjing UniversityNanjing 210023JiangsuChina Key Laboratory of Dark matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023JiangsuChina Institute of frontier and Interdisciplinary Science Shandong UniversityQingdao 266237ShandongChina Key Laboratory for research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China tsung-Dao Lee Institute&School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China School of Physical Science and technology&School of Information Science and technology Southwest Jiaotong UniversityChengdu 610031SichuanChina College of Physics Sichuan UniversityChengdu 610065SichuanChina Key Laboratory of Cosmic rays(tibet University) Ministry of EducationLhasa 850000TibetChina School of Physic

Purpose Observation of high energy and very high emission from Gamma ray Bursts(GrBs)is crucial to study the gigantic explosion and the underline *** a large field-of-view and almost full duty cycle,the Water Cherenkov Detector Array(WCDA),a sub-array of the Large high Altitude Air Shower Observatory(LhAASO),is appropriate to monitor the very high energy emission from unpredictable transients such as *** Nevertheless,the main issue for an extensive air shower array is the high energy threshold which limits the horizon of the *** address this issue a new trigger method is developed in this article to lower the energy threshold of WCDA for GrB *** the proposed method significantly improves the detection efficiency of WCDA for gamma-rays around the GrB direction at 10-300 *** sensitivity of the WCDA for GrB detection with.t.e new trigger method is *** achieved sensitivity of the quarter WCDA array above 10 GeV is comparable with.t.at of *** data analysis process and corresponding fluence upper limit for GrB 190719C is presented as an example.

关键词： LhAASO WCDA GrB

基于ti3C2tx-PVA被动调Q的低噪声556 nm腔内倍频黄绿光激光器

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光子学报 2024年第3期53卷 38-48页

作者：徐知微闫佳乐王国珍李奔陆宝乐白杨西北大学光子学与光子技术研究所西安710127 省部共建西部能源光子技术国家重点实验室西安710127 陕西省全固态激光及应用工程技术研究中心西安710127

采用液相剥离法获得厚度约为3.2 nm、层数约为3至4层的碳化钛纳米片(ti_(3)C_(2)t_(x)),结合旋涂法制备出ti_(3)C_(2)t_(x)-聚乙烯醇(ti_(3)C_(2)t_(x)-PVA)薄膜,并借助拉曼光谱、原子力显微镜和平衡双探测系统对ti_(3)C_(2)t_(x)纳米... 详细信息

采用液相剥离法获得厚度约为3.2 nm、层数约为3至4层的碳化钛纳米片(ti_(3)C_(2)t_(x)),结合旋涂法制备出ti_(3)C_(2)t_(x)-聚乙烯醇(ti_(3)C_(2)t_(x)-PVA)薄膜,并借助拉曼光谱、原子力显微镜和平衡双探测系统对ti_(3)C_(2)t_(x)纳米片的物相组成、厚度及可饱和吸收性能进行了表征。将ti_(3)C_(2)t_(x)-PVA薄膜作为可饱和吸收体应用于一种808 nm半导体激光二极管端面泵浦Nd∶YAG陶瓷/LBO腔内倍频的556 nm黄绿激光器中实现被动调Q。在分析布儒斯特偏振器和双折射晶体协同选频滤波机理的基础上,通过两者的协同使用,抑制了1116 nm和1123 nm处光谱腔内振荡并进一步压缩了1112 nm处p-偏振光的纵模个数。在5.1 W最高激光二极管泵浦功率下,获得了平均输出功率为86.2 mW、重复频率为745.8 khz、脉冲宽度为46 ns的556 nm被动调Q脉冲黄绿激光输出。4 h内测得功率不稳定度和激光噪声仅为±0.39%和0.37%,光束质量评价因子为m2x=1.837和m^(2)^(y)=1.975。ti_(3)C_(2)t_(x)-PVA薄膜被动调Q结合“布儒斯特偏振器+双折射晶体”协同选频滤波技术方案为开发高稳定性、低噪声脉冲黄绿激光提供有价值的参考。

关键词：被动调Q ti3C2tx-PVA 低噪声 556 nm黄绿激光选频滤波

A dynamic range extension system.f.r LhAASOWCDA-1

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radiation Detection technology and methods 2021年第4期5卷 520-530页

作者： f.Aharonian Q.An Axikegu L.x.Bai Y.x.Bai Y.W.Bao D.Bastieri x.J.Bi Y.J.Bi h.Cai J.t.Cai Z.Cao Z.Cao J.Chang J.f.Chang x.C.Chang B.m.chen J.chen L.chen L.chen L.chen m.J.chen m.L.chen Q.h.chen S.h.chen S.Z.chen t.L.chen x.L.chen Y.chen N.cheng Y.D.cheng S.W.Cui x.h.Cui Y.D.Cui B.Z.Dai h.L.Dai Z.G.Dai Danzengluobu D.della Volpe B.D’Ettorre Piazzoli x.J.Dong J.h.fan Y.Z.fan Z.x.fan J.fang K.fang C.f.feng L.feng S.h.feng Y.L.feng B.Gao C.D.Gao Q.Gao W.Gao m.m.Ge L.S.Geng G.h.Gong Q.B.Gou m.h.Gu J.G.Guo x.L.Guo Y.Q.Guo Y.Y.Guo Y.A.han h.h.he h.N.he J.C.he S.L.he x.B.he Y.he m.heller Y.K.hor C.hou x.hou h.B.hu S.hu S.C.hu x.J.hu D.h.huang Q.L.huang W.h.huang x.t.huang Y.huang Z.C.huang f.Ji x.L.Ji h.Y.Jia K.Jiang Z.J.Jiang C.Jin D.Kuleshov K.Levochkin B.B.Li C.Li C.Li f.Li h.B.Li h.C.Li h.Y.Li J.Li K.Li W.L.Li x.Li x.Li x.r.Li Y.Li Y.Z.Li Z.Li Z.Li E.W.Liang Y.f.Liang S.J.Lin B.Liu C.Liu D.Liu h.Liu h.D.Liu J.Liu J.L.Liu J.S.Liu J.Y.Liu m.Y.Liu r.Y.Liu S.m.Liu W.Liu Y.N.Liu Z.x.Liu W.J.Long r.Lu h.K.Lv B.Q.ma L.L.ma x.h.ma J.r.mao A.masood W.mitthumsiri t.montaruli Y.C.Nan B.Y.Pang P.Pattarakijwanich Z.Y.Pei m.Y.Qi D.ruffolo V.rulev A.Sáiz L.Shao O.Shchegolev x.D.Sheng J.r.Shi h.C.Song Yu.V.Stenkin V.Stepanov Q.N.Sun x.N.Sun Z.B.Sun P.h.t.tam Z.B.tang W.W.tian B.D.wang C.wang h.wang h.G.wang J.C.wang J.S.wang L.P.wang L.Y.wang r.N.wang W.wang W.wang x.G.wang x.J.wang x.Y.wang Y.D.wang Y.J.wang Y.P.wang Z.wang Z.wang Z.h.wang Z.x.wang D.m.Wei J.J.Wei Y.J.Wei t.Wen C.Y.Wu h.r.Wu S.Wu W.x.Wu x.f.Wu S.Q.xi J.xia J.J.xia G.m.xiang G.xiao h.B.xiao G.G.xin Y.L.xin Y.xing D.L.xu r.x.xu L.xue D.h.yan C.W.yang f.f.yang J.Y.yang L.L.yang m.J.yang r.Z.yang S.B.yang Y.h.Yao Z.G.Yao Y.m.Ye L.Q.Yin N.Yin x.h.You Z.Y.You Y.h.Yu Q.Yuan h.D.Zeng t.x.Zeng W.Zeng Z.K.Zeng m.Zha x.x.Zhai B.B.Zhang h.m.Zhang h.Y.Zhang J.L.Zhang J.W.Zhang L.Zhang L.Zhang L.x.Zhang P.f.Zhang P.P.Zhang r.Zhang S.r.Zhang S.S.Zhang x.Zhang x.P.Zhang Y.Zhang Y.Zhang Y.f.Zhang Y.L.Zhang B.Zhao J.Zhao L.Zhao L.Z.Zhao S.P.Zhao f.Zheng Y.Zheng B.Zhou h.Zhou J.N.Zhou 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 ChengduSichuanChina State Key Laboratory of Particle Detection and Electronics BeijingChina University of Science and technology of China Hefei 230026AnhuiChina Department of Engineering Physics Tsinghua UniversityBeijing 100084China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China National Space Science Center Chinese Academy of SciencesBeijing 100190China School of Physics Peking UniversityBeijing 100871China Center for Astrophysics Guangzhou UniversityGuangzhou 510006GuangdongChina School of Physics and Astronomy&School of Physics(Guangzhou) Sun Yat-sen UniversityZhuhai 519000GuangdongChina School of Physical Science and technology Guangxi UniversityNanning 530004GuangxiChina hebei Normal University Shijiazhuang 050024HebeiChina School of Physics and microelectronics Zhengzhou UniversityZhengzhou 450001HenanChina School of Astronomy and Space Science Nanjing UniversityNanjing 210023JiangsuChina Key Laboratory of Dark matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023JiangsuChina Institute of frontier and Interdisciplinary Science Shandong UniversityQingdao 266237ShandongChina Key Laboratory for research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China tsung-Dao Lee Institute&School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China School of Physical Science and technology&School of Information Science and technology Southwest Jiaotong UniversityChengdu 610031SichuanChina College of Physics Sichuan UniversityChengdu 610065SichuanChina Key Laboratory of Cosmic rays(tibet University) Ministry of EducationLhasa 850000TibetChina School of Physics

Purpose the main scientific goal of LhAASO-WCDA is to survey gamma-ray sources with energy from 100 GeV to 30 *** observe high-energy shower events,especially to measure the energy spectrum of cosmic rays from 100 teV to 10 PeV,a dynamic range extension system(WCDA++)is designed to use a 1.5-inch Pmt with a dynamic range of four orders of magnitude for each cell in *** the dynamic range is extended by using these Pmts to measure the effective charge density in the core region of air shower events,which is an important parameter for identifying the composition of primary *** and Conclusion the system has been running for more than one *** this paper,the details of the design and performance of WCDA++are presented.

关键词： LhAASO-WCDA WCDA++ Water Cherenkov detector Performance

revealing the Defect-Dominated Electron Scattering in mg_(3)Sb_(2)-Based thermoelectric materials

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research 2023年第1期2022卷 379-388页

作者： Jucai Jia yan Zhou xiaoxi chen Wenhua xue hulei Yu Jing Li Shizhen Zhi chen chen Jian wang Shuaihang hou xingjun Liu Yumei wang feng Cao Yue chen Jun mao Qian Zhang School of materials Science and Engineering and Institute of Materials Genome Big DataHarbin Institute of Technology(Shenzhen)Shenzhen 518055China Center for Device thermography and reliability(CDtr) H.H.Wills Physics LaboratoryUniversity of BristolTyndall AvenueBristol BS81TLUK Institute of Nuclear Physics and Chemistry China Academy of Engineering PhysicsMianyang 621900China Beijing National Laboratory for Condensed matter Physics Institute of PhysicsChinese Academy of Sciences100190BeijingChina 'Department of mechanical Engineering The University of Hong KongPokfulam RoadHong Kong SARChina School of Science Harbin Institute of Technology(Shenzhen)Shenzhen 518055China State Key Laboratory of Advanced Welding and Joining Harbin Institute of TechnologyHarbin 150001China

the thermoelectric parameters are essentially governed by electron and phonon *** the carrier scattering mechanism plays a decisive role in electron transport,it is of great significance for the electrical properties of thermoelectric *** a typical example,the defect-dominated carrier scattering mechanism can significantly impact the room-temperature electron mobility of n-type mg_(3)Sb_(2)-based ***,the origin of such a defect scattering mechanism is still ***,the existence of the mg vacancies and mg interstitials has been identified by synchrotron powder x.r.y *** relationship among the point defects,chemical compositions,and synthesis conditions in mg_(3)Sb_(2)-based materials has been *** further introducing the point defects without affecting the grain size via neutron irradiation,the thermally activated electrical conductivity can be *** results demonstrate th.t.the point defects scattering of electrons is important in the n-type mg_(3)Sb_(2)-based materials.

关键词： materials defect Electron

Development of new ductile iron with super-high.t.ermal conductivity and elongation

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Journal of Iron and Steel research International 2022年第3期29卷 462-473页

作者： Guang-hua wang yan-xiang Li School of materials Science and Engineering Tsinghua UniversityBeijing100084China Key Laboratory for Advanced materials Processing technology Ministry of EducationBeijing100084China

the effects of Si content,graph.t. volume fraction and pearlite volume fraction on the thermal conductivity of ductile iron were studied based on theoretical model *** results showed th.t.the thermal conductivity of ductile iron was more sensitive to Si content compared with.t.e volume fractions of pearlite and *** key method to design and develop high.t.ermal conductivity ductile iron was to control the Si *** 0.9-2.2 wt.%Si content,experimental results showed th.t.with.t.e increase in Si content,the thermal conductivity of ductile iron decreased dramatically,and the yield strength and tensile strength of ductile iron almost linearly increased,but the elongation remained almost *** dependence of thermal conductivity of ductile iron on temperature changed from monotonic decreasing to increasing first and then ***,we broke the common composition range of ductile iron and designed a new high C(≥3.9 wt.%)and low Si(1.0-1.4 wt.%)ductile iron with super-high.t.ermal conductivity and *** thermal conductivity exceeded 40 W/(m K)within 27-300℃,and maintained at 35-40 W/(m K)at 500℃.the elongation was over 25%,and the tensile strength was more than 300 mPa.

关键词： thermal conductivity Ductile iron Elongation tensile strength Silicon alloying

Can albumin administration relieve lung injury in trauma/hemorrhagic shock?

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World Journal of Gastroenterology 2006年第42期12卷 6884-6888页

作者： Zuo-Bing chen Zi-Wei wang chen-yan Ding Jian-hua yan Yuan Gao Yun Zhang Lin-mei Ni Yong-Qing Zhou Department of Emergency Surgery First Affiliated Hospital College of Medicine Zhejiang University Hangzhou 310003 Zhejiang Province China

AIm: to study the effect of albumin administration on lung injury in trauma/hemorrhagic shock (t/hS). mEthODS: Sixty experimental animals were randomly divided into three groups: rats undergoing laparotomy without shock (t/SS); rats with.t.hS and resuscitation with blood plus twice the volume of shed blood as ringer’s lactate (rL), and rats with.t.hS and resuscitation with blood plus additional 3 mL of 50 g/L human albumin. Ex.r.ssion of polymorphonuclear neutrophil (PmN) CD11b/CD18, intercellular adhesion molecule-1 (ICAm-1) of jugular vein blood and the severity of lung injuries [determined mainly by measuring activity of lung tissue myeloperoxidase (mPO) and lung injury score (LIS)] were measured after a 3-h recovery period. rESULtS: All three groups showed a significant difference in the ex.r.ssions of CD11b/CD18, ICAm-1, and severity of lung injury. the ex.r.ssions of CD11b/ CD18 in t/SS group, t/hS + rL group, t/hS + albumin group were 17.76% ± 2.11%, 31.25% ± 3.48%, 20.36% ± 3.21%, respectively (f = 6.25, P the ex.r.ssions of ICAm-1 (U/mL) in t/SS group, t/ hS + rL group, t/hS + albumin group were 258.76 ± 98.23, 356.23 ± 65.6, 301.01 ± 63.21, respectively (f = 5.86, P the ex.r.ssions of mPO (U/g) in t/SS group, t/hS + rL group, t/hS + albumin group were 2.53 ± 0.11, 4.63 ± 1.31, 4.26 ± 1.12, respectively (f = 6.26, P moreover, LIS in t/hS + rL group, t/hS + albumin group was 2.62 ± 0.23, 1.25 ± 0.24, respectively. the ex.r.ssions of CD11b/CD18, ICAm-1 and mPO in t/hS + rL group were significantly increased compared to t/SS group (P = 0.025, P = 0.036, P = 0.028,respectively). however, administration of 3 mL of 50 g/L albumin significantly down-regulated the ex.r.ssions of CD11b/CD18, ICAm-1 and lung injury index (mPO and LIS) when compared with.t.e t/hS + rL rats (P = 0.035, P = 0.046, P = 0.038, P = 0.012, respectively). CONCLUSION: the infusion of albumin during resuscitation period can protect lung from injury and decrease the e

关键词： Albumin CD11b/CD18 Intercellular adhesion molecule-1 Lung injury trauma/hemorrhagic shock

Intermittent portal triad clamping in resection of liver tumors involving the hepatocaval confluence

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hepatobiliary & Pancreatic Diseases International 2002年第2期1卷 276-280页

作者： wang Y. chen h. Sun Y.-f. Wei G.-t. Wu m.-C. Second Department of hepatic Surgery Eastern Hepatobiliary Hospital Second Military Medical University Shanghai 200438 China

Objective: to review our experience in and the re-sults of resecting liver tumors involving the hepatoca-val confluence under intermittent portal triad clam-ping (PtC).methods: Sixty-eight consecutive patients with livertumors involving the hepatocaval confluence under-went hepatectomies with liver parenchymal transec-tions under intermittent ***: All the tumors were successfully resected un-der PtC, except for one in which.t.e infrahepatic in-ferior vena cava was concomitantly occluded in addi-tion to PtC. there was neither operative death noruncontrollable massive bleeding or air embolism oc-curred in our patients. the bleedings from the mainand short hepatic veins and right adrenal veins wereproperly managed during the operation, with a meanintraoperative blood loss of 1400 ml. Of the 68tumors resected, 65 were hepatocellular carcinomas(hCC). their 1-, 2-, 3- and 4-year suvival rateswere 64.11%, 52. 82%, 44.90% and 36.98%, re-spectively, and the patients with hCC with capsulessurvived significantly longer than those with hCCwithout ***: the liver tumors involving the hepato-caval confluence could be safely resected simply un-der PtC, without routine use of total hepatic vascu-lar exclusion. As for hCCs in this area, the tumorwith capsule is a better indicator for surgical resec-tion than th.t.without capsule.

关键词： hepatectomy hepatocval confluence portal triad clamping hepatic vascular exclusion liver neoplasmas

Prospects for a multi-teV gamma-ray sky survey with.t.e LhAASO water Cherenkov detector array

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Chinese Physics C 2020年第6期44卷 123-132页

作者： f.Aharonian V.Alekseenko Q.An Axikegu L.x.Bai Y.W.Bao D.Bastieri9 x.J.Bi h.Cai Zhe Cao Zhen Cao J.Chang J.f.Chang x.C.Chang S.P.Chao B.m.chen J.chen L.chen L.chen m.L.chen m.J.chen Q.h.chen S.h.chen S.Z.chen t.L.chen x.L.chen Y.chen N.cheng Y.D.cheng S.W.Cui x.h.Cui Y.D.Cui B.Z.Dai h.L.Dai Z.G.Dai Danzengluobu B.D'Ettorre Piazzoli J.fang J.h.fan Y.Z.fan C.f feng L.feng S.h.feng Y.L.feng B.Gao Q.Gao W.Gao m.m.Ge L.S.Geng G.h.Gong Q.B.Gou m.h.Gu Y.Q.Guo Y.Y.Guo Y.A.han h.h.he J.C.he m.heller S.L.he Y.he C.hou D.h.huang Q.L.huang W.h.huang x.t.huang h.B.hu S.hu h.Y.Jia K.Jiang f.Ji C.Jin x.L.Ji K.Levochkin E.W.Liang Y.f Liang cheng Li Cong Li f.Li h.Li h.B.Li h.C.Li h.m.Li J.Li K.Li W.L.Li x.Li x.r.Li Y.Li Z.Li Z.Li B.Liu C.Liu D.Liu h.D.Liu h.Liu J.Liu J.Y.Liu m.Y.Liu r.Y.Liu S.m.Liu W.Liu Y.N.Liu Z.x.Liu W.J.Long r.Lu h.K.Lv B.Q.ma L.L.ma J.r.mao A.masood x.h.ma W.mitthumsiri t.montaruli Y.C.Nan P.Pattarakijwanich Z.Y.Pei B.Q.Qiao m.Y.Qi D.ruffolo V.rulev A.Sáiz L.Shao O.Shchegolev x.D.Sheng J.r.Shi Y.Stenkin V.Stepanov Z.B.Sun P.h.t.tam Z.B.tang W.W.tian D.D.Volpe C.wang h.wang h.G.wang J.C.wang L.Y.wang W.wang W.wang x.G.wang x.Y.wang x.J.wang Y.D.wang Y.J.wang Y.N.wang Y.P.wang Z.wang Z.h.wang Z.x.wang D.m.Wei J.J.Wei t.Wen C.Y.Wu h.r.Wu S.Wu W.x.Wu x.f.Wu G.m.xiang G.xiao G.G.xin Y.xing r.x.xu L.xue D.h.yan C.W.yang f.f.yang L.L.yang m.J.yang r.Z.yang S.B.yang Y.h.Yao Z.G.Yao Y.m.Ye L.Q.Yin N.Yin x.h.You Z.Y.You Q.Yuan Y.h.Yu Z.J.Jiang h.D.Zeng t.x.Zeng W.Zeng Z.K.Zeng m.Zha B.B.Zhang h.m.Zhang h.Y.Zhang J.L.Zhang J.W.Zhang L.Zhang P.f.Zhang P.P.Zhang S.r.Zhang S.S.Zhang x.Zhang x.P.Zhang Yi Zhang Yong Zhang Y.f.g Zhang B.Zhao J.Zhao L.Zhao L.Z.Zhao f.Zheng Y.Zheng J.N.Zhou P.Zhou r.Zhou x.x.Zhou C.G.Zhu f.r.Zhu h.Zhu K.J.Zhu x.Zuo Institute of high Energy Physics Chinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China tIANfU Cosmic ray research Center ChengduShichuanChina University of Science and technology of China 230026 HefeiAnhuiChina tsinghua University 100084 BeijingChina National Astronomical Observatories Chinese Academy of Sciences100101 BeijingChina National Space Science Center Chinese Academy of Sciences100190 BeijingChina School of Physics Peking University100871 BeijingChina Center for Astrophysics Guangzhou University510006 GuangzhouGuangdongChina Sun Yat-sen University 519000 ZhuhaiGuangdongChina Shool of Physics and technology Guangxi University530004 NanningGuangxiChina hebei Normal University 050024 ShijiazhuangHebeiChina School of Physics and Engineering Zhengzhou University450001 ZhengzhouHenanChina Nanjing University 210023 NanjingJiangsuChina Key Laboratory of Dark matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of Sciences210034 NanjingJiangsuChina Institute of frontier and Interdisciplinary Science Shandong University266237 QingdaoShandongChina Shanghai Astronomical Observatory Chinese Academy of Sciences200030 ShanghaiChina School of Physical Science and technology Southwest Jiaotong University610031 ChengduSichuanChina Sichuan University 610065 ChengduSichuanChina Key Laboratory of Cosmic rays(tibet University) Ministry of Education850000 LhasaTibetChina School of physics and technology Wuhan university430072 WuhanChina Yunnan University 650091 KunmingYunnanChina Yunnan Astronomical Observatories Chinese Academy of Sciences650216 KunmingYunnanChina Institute for Nuclear research Russian Academy of SciencesMoscowRussia Département de Physique Nucléaire et Corpusculaire Facultéde SciencesUniversitéde GenéveGenevaSwitzerland Department of Physics Faculty of ScienceMahidol UniversityBangkokThailand Dublin Institute for Advanced Studies 31 Fitzwilliam PlaceDublin 2Ireland max-Planc

the Water Cherenkov Detector Array(WCDA) is a major component of the Large high Altitude Air Shower Array Observatory(LhAASO), a new generation cosmic-ray experiment with unprecedented sensitivity, currently under construction. WCDA is aimed at the study of teV γ-rays. In order to evaluate the prospects of searching for teV γ-ray sources with WCDA, we present a projection of the one-year sensitivity of WCDA to teV γ-ray sources from teVCat using an all-sky approach. Out of 128 teVCat sources observable by WCDA up to a zenith angle of 45°, we estimate th.t.42 would be detectable in one year of observations at a median energy of 1 teV. most of them are Galactic sources, and the ex.r.galactic sources are Active Galactic Nuclei(AGN).

关键词： teVγ-ray astronomy observational prospect LhAASO-WCDA