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Search for two-neutrino double-beta decay of 136Xe to the 01+excited state of136Ba with the complete eXO-200 dataset

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Chinese Physics C 2023年第10期47卷 5-13页

作者： S.Al Kharusi G.Anton I.Badhrees P.S.Barbeau D.Beck V.Belov T.Bhatta M.Breidenbach T.Brunner G.F.Cao W.R.Cen C.chambers B.Cleveland M.Coon A.Craycraft T.Daniels L.Darroch S.J.Daugherty J.Davis S.Delaquis A.Der Mesrobian-Kabakian R.De Voe J.Dilling A.Dolgolenko M.J.Dolinski J.echevers W.Fairbank Jr. D.Fairbank J.Farine S.Feyzbakhsh P.Fierlinger Y.S.Fu D.Fudenberg P.Gautam R.Gornea G.Gratta C.Hall e.V.Hansen J.Hoessl P.Hufschmidt M.Hughes A.Iverson A.Jamil C.Jessiman M.J.Jewell A.Johnson A.Karelin L.J.Kaufman T.Koffas R.Krücken A.Kuchenkov K.S.Kumar Y.Lan A.Larson B.G.Lenardo D.S.Leonard G.S.Li S.Li Z.Li C.Licciardi Y.H.Lin R.Mac Lellan T.Mc elroy T.Michel B.Mong D.C.Moore K.Murray O.Njoya O.Nusair A.Odian I.Ostrovskiy A.Perna A.Piepke A.Pocar F.Retière A.L.Robinson P.C.Rowson J.Runge S.Schmidt D.Sinclair K.Skarpaas A.K.Soma V.Stekhanov M.Tarka S.Thibado J.Todd T.Tolba T.I.Totev R.Tsang B.Veenstra V.Veeraraghavan P.Vogel J.-L.Vuilleumier M.Wagenpfeil J.Watkins M.Weber L.J.Wen U.Wichoski G.Wrede S.X.Wu Q.Xia D.R.Yahne L.Yang Y.-R.Yen O.Ya.Zeldovich T.Ziegler eXO-200 Collaboration Physics Department McGill University erlangen Centre for Astroparticle Physics (eCAP) Friedrich-Alexander-University Erlangen-Nürnberg Physics Department Carleton University King Abdulaziz City for Science and Technology Department of Physics Duke University and Triangle Universities Nuclear Laboratory (TUNL) Physics Department University of Illinois Institute for Theoretical and experimental Physics named by A.I.Alikhanov of National Research Centre “Kurchatov Institute” a division of National Research Center “Kurchatov Institute” Department of Physics University of South Dakota Department of Physics and Astronomy University of Kentucky SLAC National Accelerator Laboratory TRIUMF Institute of High energy Physics Witmem Technology Co. Ltd. Department of Physics Laurentian University Also at SNOLAB Physics Department Colorado State University Department of Physics and Physical Oceanography University of North Carolina at Wilmington Physics Department and CeeM Indiana University Carleton University Commissariat àl’energie Atomique et auxénergies alternatives Physics Department Stanford University Department of Physics Drexel University University of California Amherst Center for Fundamental Interactions and Physics Department University of Massachusetts Technische Universit?t München Physikdepartment and Excellence Cluster Universe Qventus Department of Physics University of Virginia Physics Department University of Maryland Department of Physics at the University of California Department of Physics and Astronomy University of Alabama Wright Laboratory Department of Physics Yale University Department of Physics Princeton University IBS Center for Underground Physics Physics Department University of California SNOLAB Department of Physics and Astronomy Stony Brook University SUNY SCIPP University of California Institute for experimental Physics Hamburg University Department of Physics and Astronomy Iowa State University Kellogg Lab Caltech LHeP Albert Einstein Center University of Ber

A new search for two-neutrino double-beta(2vββ) decay of136Xe to the 01+excited state of136Ba is performed with the full eXO-200 dataset.A deep learning-based convolutional neural network is used to discriminate signal from background *** detection efficiency is increased relative to previous searches by eXO-200 by more than a factor of *** the addition of the Phase Ⅱ dataset taken with an upgraded detector,the median 90%confidence level half-life sensitivity of 2vββ decay to the 01+state of136Ba is 2.9 × 1024yr using a total136Xe exposure of 234.1 kg *** statistically significant evidence for 2vββ decay to the 01+state is observed,leading to a lower limit of T1/22v(0+→01+)>1.4×1024yr at 90% confidence level,improved by 70% relative to the current world’s best constraint.

关键词： eXO-200 experiment neutrinoless double beta decay excited state

胶东郭家岭序列北截杂岩体SHRIMP锆石U-Pb年代学、岩石学、地球化学特征及构造意义

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山东科技大学学报（自然科学版） 2021年第5期40卷 30-42页

作者：迟乃杰韩作振单伟刘传娥熊玉新舒磊李增胜郭广军马祥县山东省地质科学研究院自然资源部金矿成矿过程与资源利用重点实验室山东省金属矿产成矿地质过程与资源利用重点实验室山东济南250013 山东科技大学地球科学与工程学院山东青岛266590 山东省地矿工程勘察院山东济南250014

胶东地区大规模金成矿作用与中生代构造、岩浆活动关系紧密,如郭家岭期岩浆杂岩体与该区域大规模的金成矿期存在较好的时间耦合性。本研究以郭家岭期北截杂岩体中发育的两期花岗闪长岩为研究对象,开展岩相学、全岩主微量元素地球化学及S... 详细信息

胶东地区大规模金成矿作用与中生代构造、岩浆活动关系紧密,如郭家岭期岩浆杂岩体与该区域大规模的金成矿期存在较好的时间耦合性。本研究以郭家岭期北截杂岩体中发育的两期花岗闪长岩为研究对象,开展岩相学、全岩主微量元素地球化学及SHRIMP锆石U-Pb年代学研究。北截杂岩体两期花岗闪长岩均为似斑状结构,但二者的基质粒度表现出显著的差异性,其中较早一期(132.9±1.2)Ma花岗闪长岩中基质为中粗粒结构,而较晚一期(129.7±1.1)Ma花岗闪长岩中基质呈中细粒结构;前者具有高钾钙碱性特征,后者属中钾-高钾钙碱性系列,二者均表现出准铝质至弱过铝质特征。两期花岗闪长岩的主量元素具良好的线性关系,表明二者为同源岩浆演化的结果。此外,早期就位岩体与晚期岩体的微量元素特征存在轻微差异,且岩浆物质来源显示为壳幔混源,说明胶东地区中生代发育的岩浆杂岩体以持续构造活动为基础,存在长期活动的岩浆房,不同时期的同源岩浆具有轻微的演化程度差异。

关键词：郭家岭序列北截杂岩体 SHRIMP锆石岩浆演化构造环境

温度和CO_(2)浓度升高下双季稻茎蘖动态、成穗率与产量的关系

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作物杂志 2023年第3期 159-166页

作者：宋春燕万运帆李玉娥蔡岸冬胡严炎周慧朱波王斌中国农业科学院农业环境与可持续发展研究所/农业农村部农业环境重点实验室北京100081 长江大学农学院湖北荆州434022

为明确气候变化下我国双季稻茎蘖动态与成穗特征的变化及其与产量的关系,利用开顶式气室(OTC)连续开展4年8个生长季的大田气候变化原位模拟试验,设置对照(CK)、增温2℃(eT)、CO_(2)浓度增加60μmol/mol(eC)、同时增温增CO_(2)浓度(eTeC)... 详细信息

为明确气候变化下我国双季稻茎蘖动态与成穗特征的变化及其与产量的关系,利用开顶式气室(OTC)连续开展4年8个生长季的大田气候变化原位模拟试验,设置对照(CK)、增温2℃(eT)、CO_(2)浓度增加60μmol/mol(eC)、同时增温增CO_(2)浓度(eTeC)共4个处理,研究双季稻生育期内茎蘖动态、成穗率变化特征以及对产量的影响。结果表明,随着累积辐射量和生长度日(GDD)升高,水稻分蘖达到峰值后部分消亡,且早稻分蘖增长和消亡速率均大于晚稻。相比CK,eT、eC和eTeC条件下早稻最大分蘖数和无效分蘖数分别提高3.6%~14.2%和8.9%~134.2%,成穗率降低0.4%~9.3%,对产量形成具有不利影响;晚稻最大分蘖数提高2.9%~13.1%,无效分蘖数降低1.6%~64.8%,成穗率提高1.7%~22.1%,有助于产量增长。eTeC处理对双季稻最大分蘖具有正向协同的交互作用,而对无效分蘖和成穗率的交互作用不显著。总体而言,大气温度和CO_(2)浓度升高对早稻分蘖和成穗具有负效应,对晚稻表现为正效应,未来气候变化背景下提高水稻茎蘖数,控制无效分蘖,进而提高成穗率,对水稻稳产增产具有重要意义。

关键词：双季稻 CO_(2)浓度温度分蘖成穗率产量

Research and development of the back-end electronics for the two-dimensional improved resistive plate chambers in CMS upgrade

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Radiation Detection Technology and Methods 2021年第2期5卷 181-191页

作者： P.Cao Z-A.Liu J.Zhao H.Kou J.Tao J.Song W.Gong N.Wang A.Samalan M.Tytgat N.Zaganidis G.A.Alves F.Marujo F.Torres.Da.S.ilva.De.Araujo e.M.Da Costa D.De Jesus Damiao H.Nogima A.Santoro S.Fonseca De Souza A.Aleksandrov R.Hadjiiska P.Iaydjiev M.Rodozov M.Shopova G.Sultanov M.Bonchev A.Dimitrov L.Litov B.Pavlov P.Petkov A.Petrov S.J.Qian C.Bernal A.Cabrera J.Fraga A.Sarkar S.elsayed Y.Assran M.el Sawy M.A.Mahmoud Y.Mohammed X.Chen C.Combaret M.Gouzevitch G.Grenier I.Laktineh L.Mirabito K.Shchablo I.Bagaturia D.Lomidze I.Lomidze V.Bhatnagar R.Gupta P.Kumari J.Singh V.Amoozegar B.Boghrati M.ebraimi R.Ghasemi M.Mohammadi Najafabadi e.Zareian M.Abbrescia R.Aly W.elmetenawee N.De Filippis A.Gelmi G.Iaselli S.Leszki F.Loddo I.Margjeka G.Pugliese D.Ramos L.Benussi S.Bianco D.Piccolo S.Buontempo A.Di Crescenzo F.Fienga G.De Lellis L.Lista S.Meola P.Paolucci A.Braghieri P.Salvini P.Montagna C.Riccardi P.Vitulo B.Francois T.J.Kim J.Park S.Y.Choi B.Hong K.S.Lee J.Goh H.Lee J.eysermans C.Uribe estrada I.Pedraza H.Castilla-Valdez A.Sanchez-Hernandez C.A.Mondragon Herrera D.A.Perez Navarro G.A.Ayala Sanchez S.Carrillo e.Vazquez A.Radi A.Ahmad I.Asghar H.Hoorani S.Muhammad M.A.Shah I.Crotty Department of Physics and Astronomy Ghent UniversityProeftuinstraat 869000 GhentBelgium Centro Brasileiro Pesquisas Fisicas R.Dr.Xavier Sigaud150-UrcaRio de JaneiroRJ 22290-180Brazil Dep.de Fisica Nuclear e Altas energias Instituto de FisicaUniversidade do Estado do Rio de JaneiroRua Sao Francisco Xavier524BR-Rio de Janeiro 20559-900RJBrazil Bulgarian Academy of Sciences Inst.for Nucl.Res.and Nucl.EnergyTzarigradsko shaussee Boulevard 721784 SofiaBulgaria Faculty of Physics University of Sofia5 James Bourchier Boulevard1164 SofiaBulgaria School of Physics Peking UniversityBeijing 100871China Institute of High energy Physics UCAS/CAS19(B)Yuquan RoadShijingshan DistrictBeijing 100049China Universidad de Los Andes Apartado Aereo 4976Carrera 1Eno.18A 10BogotaCOColombia egyptian Network for High energy Physics Academy of Scientific Research and Technology101 Kasr El-Einy St.CairoEgypt The British University in egypt(BUe) P.O.Box 43Elsherouk CitySuez Desert RoadCairo 11837Egypt Suez University Elsalam CitySuez-Cairo RoadSuez 43522Egypt Department of Physics Faculty of ScienceBeni-Suef UniversityBeni-SuefEgypt Center for High energy Physics Faculty of ScienceFayoum UniversityEl-Fayoum 63514Egypt Univ Lyon Univ Claude Bernard Lyon 1CNRS/IN2P3IP2I LyonUMR 582269622 VilleurbanneFrance Georgian Technical University 77 Kostava Str.Tbilisi 0175Georgia Department of Physics Panjab UniversityChandigarh 160014India School of Particles and Accelerators Institute for Research in Fundamental Sciences(IPM)P.O.Box 19395-5531TehranIran School of engineering Damghan UniversityDamghan ***Iran INFN Sezione di BariVia Orabona 470126 BariItaly INFN Laboratori Nazionali di Frascati(LNF)Via Enrico Fermi 4000044 FrascatiItaly INFN Sezione di NapoliComplesso Univ.Monte S.AngeloVia Cintia80126 NaplesItaly INFN Sezione di PaviaVia Bassi 6PaviaItaly INFN Sezione di Pavia and University of PaviaVia Bassi 6PaviaItaly Hanyang University 222 Wangsimni-roSageun-dongSeongdong

Purpose To complement and ensure redundancy in the endcap muon system of the Compact Muon Solenoid(CMS)detector and to extend the Resistive Plate Chamber(RPC)system coverage,improved RPCs(iRPCs)with either orthogonal layer strips with one-end electronics or single layer strips with two-end electronics providing more precise time measurement will be installed in the very forward pseudorapidity region of|η|eadout system needs to support twodimensional(2D)or two-end *** addition,it must combine detector data with Timing,Trigger and fast Control(TTC)and Slow Control(SC)into one data stream over a bi-directional optical link with a line rate of 4.8 Gb/s between the Front-end electronics(Fee)and the Back-end electronics(Bee).To fulfill these requirements,a prototype Bee for the iRPC 2D chamber has been researched and *** A Micro-Telecommunication and Computing Architecture(μTCA)-based processing card was designed in this study to establish a prototype system together with aμTCA *** Giga-Bit Transceiver(GBT)protocol is integrated to provide bi-directional communication between the Fee and Bee.A server is connected with the Bee by a Gigabit ethernet(Gbe)link for SC and a 10-Gbe link for Data AcQuisition(DAQ).Results The Bit error Rate(BeR)test of the back-end board and a joint test with the iRPC 2D prototype chamber were *** less than 1.331×10−16 was *** timemeasurement with a resolution of 3.05 nswas successfully realized,and detector efficiencies of 97.7%for longitudinal strips and 96.0%for orthogonal strips were *** results demonstrate the correctness and reliability of the prototype *** The Bee prototype satisfies the requirements for the iRPC 2D chamber,and it worked stably and reliably during a long-term joint test run.

关键词： CMS iRPC TTC SC Bee μTCA GBT DAQ

Development of a Flow Chamber for Studying Cell Behaviour under Pulsatile Flow

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Development of a Flow Chamber for Studying Cell Behaviour un...

第七届全国生物力学学术会议

作者： Yubo Fan , Wentao Jiang , Yuanwen Zou , Ling Bai , Jinlin Song , Ming Zhang, Zonglai Jiang , Junkai Chen 1.Laboratory of Biomechanical engineering, Sichuan University, Chengdu 610065 , China,e - mail yubofan?yahoo, com. cn 2. Sjockey Club Rehabilitation engineering Centre, The Hong Kong polytechnic University, Hong Kong, China 3. Shanghai Second Military Medical University, Shanghai 20000, China

＜正＞ Introduction Because of the complexity and sophistication of the in vivo environment, to systematically study the behavior of cellular response to mechanical forces has mainly relied on the use of in vitro preparations. The parallel plate flow chamber is the most common used for applying fluid shear stress to cultured cells. Most studies used parallel plate flow chambers under steady flow, and only a limited number of in vitro studies concerned with the influence of pulsatile flow. Several kinds of flow chamber were developed which can provide pulsatile flow to cells （Helmilinger et al, 1991;Ruel et al., 1995;Tacobes et al., 1998）. If the flow in flow chamber similar to the in vivo arterial pulsatile flow can be applied to cultured cells, then more useful information may be achieved.

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色素性青光眼伴巨大角膜

世界核心医学期刊文摘(眼科学分册) 2006年第3期 40-40页

作者： Turah M.e Tekeli O. 王大江 Faculty of Medicine Department of Opthalmology Ankara University Ankara Turkey

Purpose: To describe the ocular findings and clinical characteristics of two sisters having anterior megalophthalmos with megalocornea and pigmentary glaucoma. Material and methods: Acomplete ophthalmological examinationwas performed. Results: Megalocornea and transillumination defects of the irides were observed associated with deep anterior chambers in both cases. In these cases, a diagnosis of anterior megalophthalmos with pigmentary glaucoma was made. Conclusion: Anterior megalophthalmos is a rare hereditary condition. The ophthalmologist should be made aware of the many ocular findings that may be associated with megalophthalmos.

关键词：角膜色素性青光眼

右心室起搏与双心腔起搏术对Ⅲ度房室传导阻滞老年患者的临床疗效比较

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国际心血管病杂志 2010年第5期37卷 306-308页

作者：曹佳齐崔克俭丁跃有曹维锷顾水明上海市徐汇区中心医院心内科 200031

目的:观察右心室起搏器术(VVI)与双心腔起搏术(DDD)在Ⅲ度房室传导阻滞老年患者中的疗效。方法:采用回顾性分析,将68例患者分为VVI组和DDD组,比较两组心功能变化、房颤、缺血性脑卒中的发生率。结果:心动超声心功能测定,术前和随访结果... 详细信息

目的:观察右心室起搏器术(VVI)与双心腔起搏术(DDD)在Ⅲ度房室传导阻滞老年患者中的疗效。方法:采用回顾性分析,将68例患者分为VVI组和DDD组,比较两组心功能变化、房颤、缺血性脑卒中的发生率。结果:心动超声心功能测定,术前和随访结果比较:VVI组左室射血分数(LVeF)从(53.8±2.1)%下降至(49.5±3.4)%,PeF从(54.1±2.6)%下降至(52.7±2.8)%,P>0.05。比较两组患者在心功能变化、房颤的发生率均有统计学差异,缺血性脑卒中的发生率无统计学差异。结论:对Ⅲ度房室传导阻滞老年患者,两种起搏方式的比较,DDD对Ⅲ度房室传导阻滞老年患者心功能的保护及房颤更低发生率均优于VVI组。

关键词：右心室起搏器术双心腔起搏术 Ⅲ度房室传导阻滞

自组织理论视野下应用型高校新商科教育联动路径探索

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铜陵学院学报 2023年第3期22卷 120-124页

作者：吴自爱吴铖铖邱玉琢项桂娥赵娣王丽娟池州学院商学院安徽池州247000 菲律宾克里斯汀大学国际学院菲律宾马尼拉1006 南京信息工程大学商学院江苏南京210000

新商科教育联盟井喷式出现,符合教育和产业统筹融合发展趋势。应用型高校新商科教育联动是高校、政府、企业、行业协会商会、社区和其他社会组织不同要素之间的有效协调和运转,高校应主动扮演“领头雁”角色,有效整合教育联动体,构建协... 详细信息

新商科教育联盟井喷式出现,符合教育和产业统筹融合发展趋势。应用型高校新商科教育联动是高校、政府、企业、行业协会商会、社区和其他社会组织不同要素之间的有效协调和运转,高校应主动扮演“领头雁”角色,有效整合教育联动体,构建协同创新机制、资源整合机制、信息反馈机制和激励约束机制,激活新商科教育联动“雁阵效应”,促进应用型高校新商科人才培养高质量发展。

关键词：自组织理论应用型高校新商科教育联动产教融合

过敏性和刺激性接触性皮炎的动力学非侵入性评估

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世界核心医学期刊文摘（皮肤病学分册） 2005年第6期1卷 36-36页

作者： Astner S. González alez e. Cheung A.C. S.Gonzá Wellman 阎小宁 Dr. Labs.of Photomedicine BAR 810 Massachusetts General Hospital Boston MA 02114 United States

Reflectance confocal microscopy (RCM) allows non- invasive visualization of human skin in vivo. It has been used to describe the histopathological features of acute contact dermatitis (CD). This work was designed to investigate the kinetics of both allergic and irritant CD (ACD and ICD) in vivo. eighteen subjects with a prior diagnosis of ACD were patch tested with the specific allergen sodium lauryl sulfate as an irritant, and appropriate controls. RCM, transepidermal water loss (TeWL), and fluorescence excitation spectroscopy(FeS) were performed at several time points within 2 wk after patch removal. After removal of the Finn chambers at 48 h, superficial epidermal changes, primarily involving the stratum corneum, and increased epidermal thickness were mainly present in ICD. ACD, on the other hand, showed microvesicle formation peaking at 96 h following patch removal. Both ACD and ICD showed exocytosis and similar degrees of spongiosis on RCM. TeWL and FeS demonstrated a significant difference between ACD and ICD. RCM, TeWL, and FeS are valuable non-invasive tools to quantitatively study the kinetics of the pathophysiology of acute CD reactions in vivo and monitor the changes at a cellular level.

关键词：刺激性皮炎荧光激发反射性组织病理学微血管形成过敏源十二醇胞外分泌病理生理学可比性