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molecular Detection of Pathogens Involved in Sexually Transmitted Infections in Brazzaville, Congo

Open Journal of medical microbiology 2024年第3期14卷 190-205页

作者： Jeanine mireille Sita maboundou Bitsi Nina Esther Ngoyi Ontsira Edith Sophie Kombo Bayonne Tanguy mieret Geril Sekangue Obili Herlen Tsoumou Lina Foungou Kessengue Samantha Potokoue mpia Chloé Dupont Guilhem Conquet Gickel mpika Bitsene Bienvenu Roland Ibara Ossibi axel Aloumba Etienne Nguimbi Sylvain Godreuil Faculty of Sciences and Technology Marien NGOUABI University Brazzaville Republic of the Congo Faculty of Health Sciences Marien NGOUABI University Brazzaville Republic of the Congo Bacteriology-Virology Laboratory University Hospital Center Brazzaville Republic of the Congo Department of Infectious Diseases Referral Hospital Center of Talanga Brazzaville Republic of the Congo Parasitology-mycology Laboratory University Hospital Center Brazzaville Republic of the Congo Department of Gynecology-Obstetrics University Hospital Center Brazzaville Republic of the Congo UmR IRD224-CNRS5290-Um mIVEGEC Infectious Diseases and Vectors: Ecology Genetics Evolution and Control CREES (Reshearch Center in Ecology and Evolution Health) Montpellier France Bacteriology Laboratory Arnaud de Villeneuve University Hospital CHU of Montpellier Montpellier France Department of Infectious Diseases University Hospital Center Brazzaville Republic of the Congo

The objective of this multicentric study was to assess the prevalence of Chlamydia trachomatis, Neisseria gonorrhoeae, mycoplasma génitalium and Trichomonas vaginalis infections in Brazzaville, in the Republic of Congo, using molecular methods. From January to December 2021, the sexually transmitted disease risk participants were recruited from six centers: The Association of Young HIV-Positive People of Congo, The Congolese Association for Family Welfare, The Association for Support to Vulnerable Groups, Talangaï hospital, Brazzaville university hospital (outpatient service) and the private clinic COGEmO (outpatient service). The real-time multiplex PCR was carried out to detect these pathogens. Each patient had at least one specimen (urine, urethral, anal and/or vaginal samples). The patients were considered infected when one of their samples was positive. 287 participants made of 227 women and 60 men were tested. The general prevalence of these infections was: Chlamydia trachomatis 2.79%, Neisseria gonorrhoeae 3.14%, mycoplasma génitalium 3.45% and Trichomonas vaginalis 2.97. The prevalence rates according to sex were: C. trachomatis, m. génitalium, N. gonorrhea and T. vaginalis were 1.32%, 2.05%, 1.32% and 3.42% in women and 8.33%, 7.02%, 10% and 1.75% in men, respectively. most infected patients were asymptomatic. Prevalence rates were higher in bisexual individuals, with the exception of T. vaginalis which showed higher prevalence in heterosexual patients. The bisexual and homosexual individuals represent a major public health problem in sexually active young adults, particularly among men having sex with men. These sexually transmitted infections are mainly asymptomatic, their diagnosis and management remain difficult in developing countries.

关键词： Prevalence Chlamydia trachomatis Neisseria gonorrhoeae mycoplasma génitalium Trichomonas vaginalis

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The Effect of Traffic on Ballast Settlement

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Journal of Transportation Technologies 2021年第4期11卷 669-687页

作者： Sisay A. Gebremariam mequanent m. Alamnie Ethiopian Railway Corporation Addis Ababa Ethiopia

The main factor that contributes to the deterioration of track components is traffic load. Explanations on how the speed, load and repetition of traffic influence the long-term settlement of ballast in a ballasted track are very scarce. Having in mind that tracks subjected to the same load show different settlement behaviors, explanations of track settlements in accordance with the speed, load and repetition are needed. This study is motivated to show how traffic affects the long-term settlement of ballast and how the traffic parameters (speed, load and repetition) contribute to the process. Using finite element modeling software, the three-dimensional track is modeled and analyzed for different values of speed, load and number of repetitions. Drucker Prager plastic model is applied for the ballast and sub-ballast materials of the track. To get the parameters for the Drucker Prager plastic model of granular materials, triaxial test simulation is performed using discrete element software. Hertz’s contact theory is used to model the contact between the wheel and rail. The long-term settlement behavior of ballast material is analyzed by applying 8000 cycles of moving axel load. According to the analyses, a change in the speed and the number of repetitions of train movement changes the permanent settlement of ballast more than the variation in load. Increase in the speed of train movement by 20 km/hr. will increase the stress transferred to the subgrade by up to about 1000 kPa. Speed of train movement is the most contributing parameter in the degradation of ballast material more than the load and number of repetitions. In a conventional ballasted track after about 6000 repetitions of train movement ballast material will start to decrease its performance. The comparison of the effects of the variation of individual traffic parameters speed, load and number of repetitions on the settlement of ballast which is not touched by former researches is well addressed by this stud

关键词： Ballast Speed axel Load Number of Repetitions Settlement modeling

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压力支持通气和双相气道正压通气通过肺血流重新分布从而提高氧合

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麻醉与镇痛 2012年第1期8卷 67-77页

作者： Alysson R. Carvalho, PhD Peter m. Spieth, mD Paolo Pelosi, mD, PhD Alessandro Beda, PhD Agnaldo J. Lopes, mD, DSc Boriana Neykova, mD axel R. Heller, mD, PhD Thea Koch, mD, PhD marcelo Gama de Abreu, mD, mSc, PhD, DEAA 王琦（翻译） Clinic of Anesthesiology and Intensive Care medicine University Clinic Carl Gustav Carus Dresden Germany University Augusto motta Rio de Janeiro Brazil Department of Ambient Health and Safety University of Insubria Varese Italy Institute of Radiology University Clinic Carl Gustav Carus Technical University Dresden Dresden Germany

背景机械通气时保留自主呼吸（spontaneousbreathing，SB）可改善气体交换，主要是因为这种通气方式可使萎陷的肺复张。在保留SB的机械通气中，常选择压力支持通气（pressuresupportventilation，PSV）和双相气道正压通气（biphasicposi... 详细信息

背景机械通气时保留自主呼吸（spontaneousbreathing，SB）可改善气体交换，主要是因为这种通气方式可使萎陷的肺复张。在保留SB的机械通气中，常选择压力支持通气（pressuresupportventilation，PSV）和双相气道正压通气（biphasicpositiveairwaypressure，BIPAP）。但医师对这些辅助性机械通气方式改善肺功能的机制却不甚了解。我们评价了采用PSV和BIPAP改善氧合的机制。方法5头猪（25-29．3kg）于仰卧位行机械通气，并通过清除肺表面活性物质诱发其发生急性肺损伤（acutelung砸jury，Au）。状态稳定后，给予BIPAP通气，初期较低持续气道正压设置为5cmH2O，随后逐渐增加持续气道正压至维持潮气量在6-8ml／kg。减浅麻醉深度，当SB≥每分通气量的20％时，随机进行1小时的PSV或BIPAP＋SB通气。于呼气末行全胸螺旋式计算机体层扫描，并记录肺功能参数。静脉给予荧光微球体来记录肺血流（pulmonarybloodflow，PBF），并利用空间聚类分析来评估每种通气方式对PBF重新分布的影响。结果Au损伤肺功能并加大了下肺萎陷或不张组织的面积（P〈0．05）。和对照组比较，PSV和BIPAP＋SB的通气模式提高了氧合并减少了静脉血掺杂（P〈0．05）。尽管如此，我们观察到自主呼吸时下肺的不张肺组织或通气不良组织明显增加，而可正常通气的肺组织减少。观察到6例中有5例行PSV或sB＋BIPAP通气时PBF由下至上重新分布，肺通气也较好。结论在ALI模型中采用PSV或BIPAP＋SB行机械通气可改善氧合，减少静脉血掺杂的原因为PBF由下至上的重新分布，而不是因为下肺复张。

关键词：双相气道正压通气压力支持通气肺血流氧合 BIPAP通气保留自主呼吸持续气道正压肺功能参数

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Latest development status of Qcells *** NEO technology

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第十九届中国太阳级硅及光伏发电研讨会(19th CSPV)

作者： J?rg W.müller Ansgar mette Stefan H?rnlein Ingmar H?ger martin Schaper Kai Petter matthias Jungh?nel Christian Klenke Anika Weihrauch Hans-Christoph Ploigt Ohjin Kwon Antje Sch?nmann Osama Tobail Kyunghun Kim axel Schwabedissen maximilian Kauert Klaus Duncker René H?nig Janko Cieslak Florian Stenzel Bj?rn Faulwetter-Quandt Jessica Scharf Friederike Kersten Benjamin Lee Sissel Tind Kristensen Olaf Schnelting Carsten Baer martina Queck Gregor Zimmermann matthias K?hler Nicole Lampa Britta Pohl-Hampel Lorenzo Burtone Larissa Niebergall matthias Schütze Susanne Schulz Fabian Fertig Stefan Peters markus Fischer Qcells Thalheim R&D Center(Hanwha Q CELLS GmbH)

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Nat Genet:单细胞分析解开结直肠癌细胞的神秘面纱

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现代生物医学进展 2017年第15期17卷 I0003-I0003页

作者： Huipeng Li, Elise T Courtois, Debarka Sengupta, Yuliana Tan Shyam Prabhakar Elise T Courtois, Yuliana Tan Paul Robson Debarka Sengupta Kok Hao Chen, Jolene Jie Lin Goh Paul Jongjoon Choi Say Li Kong, axel m Hillmer Iain Beehuat Tan Clarinda Chua Iain Beehuat Tan Lim Kiat Hon Wah Siew Tan mark Wong Lawrence J K Wee Iain Beehuat Tan Paul Robson Paul Robson Paul Robson Computational and Systems Biology Genome Institute of Singapore Singapore Developmental Cellomics Laboratory Genome Institute of Singapore Singapore Department of Computer Science and Engineering and Center for Computational Biology Indraprastha Institute of Information Technology Delhi India Synthetic Biology Genome Institute of Singapore Singapore Cancer Therapeutics and Stratified Oncology Genome Institute of Singapore Singapore Department of medical Oncology National Cancer Centre Singapore Singapore Department of Pathology Singapore General Hospital Singapore Department of Colorectal Surgery Singapore General Hospital Singapore Data Analytics Department Institute for Infocomm Research Singapore Program in Cancer and Stem Cell Biology Duke-NUS Medical School Singapore The Jackson Laboratory for Genomic medicine Farmington Connecticut USA Department of Genetics and Genome Sciences Institute for Systems Genomics University of Connecticut Farmington Connecticut USA Department of Biological Sciences National University of Singapore Singapore.

结合单细胞基因组学和计算机技术，一个研究团队（包括来自杰克逊实验室（JAx）单细胞生物学主任Paul Robson博士在内）鉴定出了11种结直肠癌肿瘤的癌细胞组成及邻近的非癌细胞。这对于更好的肿瘤靶向诊断和治疗很重要。”使用单细胞测... 详细信息

结合单细胞基因组学和计算机技术，一个研究团队（包括来自杰克逊实验室（JAx）单细胞生物学主任Paul Robson博士在内）鉴定出了11种结直肠癌肿瘤的癌细胞组成及邻近的非癌细胞。这对于更好的肿瘤靶向诊断和治疗很重要。”使用单细胞测序。”JAX科学家、这篇发表在Nature Genetics上的文章共同第一作者Elise Courtois说道。”我们可以根据肿瘤中的细胞组成将结直肠癌进一步分类。因为每种亚型的肿瘤病人生存率存在差别，我们的方法将为肿瘤医生提供更多的关于肿瘤预后和治疗的信息。”

关键词：单细胞分析结直肠癌癌细胞 Nat 细胞组成肿瘤病计算机技术细胞生物学

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马克斯·普朗克创新与竞争研究所就欧盟委员会“关于构建欧洲数据经济征求意见书”的立场声明

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电子知识产权 2017年第7期 92-100页

作者： Josef Drexl Reto m.Hilty Jure Globocnik Franziska Greiner Daria Kim Heiko Richter Peter R.Slowinski Gintar? Surblyt? axel Walz Klaus Wiedemann 刘维张嘉莹马克斯.普朗克创新与竞争研究所上海交通大学凯原法学院上海大学法学院

马克斯·普朗克创新与竞争研究所是一家在马克斯·普朗克学会之下设立的研究机构,自五十一年前设立以来,一直致力于在既已确立的科学原理基础之上对知识产权和竞争法的分析与发展进行研究.马克斯·普朗克创新与竞争研究所承担着该领域... 详细信息

马克斯·普朗克创新与竞争研究所是一家在马克斯·普朗克学会之下设立的研究机构,自五十一年前设立以来,一直致力于在既已确立的科学原理基础之上对知识产权和竞争法的分析与发展进行研究.马克斯·普朗克创新与竞争研究所承担着该领域内基础问题的研究.基于其卓著的研究贡献,马克斯·普朗克创新与竞争研究所发起并引领着德国、欧洲以及国际层面重要的立法及理论研究。

关键词：普朗克马克斯竞争法研究所欧盟委员会创新欧洲意见书

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measurement of the absolute branching fraction of D^+→K^0e^+v_e via K^0→π~0π~0

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Chinese Physics C 2016年第11期40卷 5-13页

作者：麦迪娜 m.N.Achasov 艾小聪 O.Albayrak m.Albrecht D.J.Ambrose A.Amoroso 安芬芬安琪白景芝 R.Baldini Ferroli 班勇 D.W.Bennett J.V.Bennett m.Bertani D.Bettoni 边渐鸣 F.Bianchi E.Boger I.Boyko R.A.Briere 蔡浩蔡啸 O.Cakir A.Calcaterra 曹国富 S.A.Cetin 常劲帆 G.Chelkov 陈刚陈和生陈海云陈江川陈玛丽陈实陈申见谌炫陈旭荣陈元柏程和平褚新坤 G.Cibinetto 代洪亮代建平 A.Dbeyssi D.Dedovieh 邓子艳 A.Denig I.Denysenko m.Destefanis F.De mori 丁勇董超董静董燎原董明义豆正磊杜书先段鹏飞范荆州方建房双世方馨方易 R.Farinelli L.Fava O.Fedorov F.Feldbauer G.Felici 封常青 E.Fioravanti m.Fritsch 傅成栋高清高鑫磊高旭阳高原宁高榛 I.Garzia K.Goetzen 龚丽龚文煊 W.Gradl m.Greco 顾旻皓顾运厅管颖慧郭爱强郭立波郭如盼郭玥郭玉萍 Z.Haddadi A.Hafner 韩爽郝喜庆 F.A.Harris 何康林 T.Held 衡月昆侯治龙胡琛胡海明胡继峰胡涛胡誉黄光顺黄金书黄性涛黄晓忠黄勇黄智玲 T.Hussain 纪全姬清平季晓斌季筱璐姜鲁文江晓山蒋兴雨焦健斌焦铮金大鹏金山 T.Johansson A.Julin N.Kalantar-Nayestanaki 康晓琳康晓珅 m.Kavatsyuk 柯百谦 P.Kiese R.Kliemt B.Kloss O.B.Kolcu B.Kopf m.Kornicer A.Kupsc W.Kühn J.S.Lange m.Lara P.Larin C.Leng 李翠李澄李德民李飞李峰云李刚李海波李惠静李家才李瑾李康李科李蕾李培荣李启云李腾李卫东李卫国李晓玲李小男李学潜李郁博李志兵梁昊梁勇飞梁羽铁廖广睿林德旭刘冰刘北江刘春秀刘栋刘福虎刘芳刘峰刘宏邦刘汇慧刘欢欢刘怀民刘杰刘建北刘觉平刘晶译刘凯刘魁勇刘兰雕刘佩莲刘倩刘树彬刘翔刘玉斌刘振安刘智青 H.Loehner 娄辛丑吕海江吕军光卢宇卢云鹏罗成林罗民兴 T.Luo 罗小兰吕晓睿马凤才马海龙马连良马明明马秋梅马天马旭宁马骁妍马玉明 F.E.maas m.maggiora 冒亚军毛泽普 S.marcello J.G.messchendorp 闵建闵天觉 R.E.mitchell 莫晓虎莫玉俊 C.morales morales N.Yu.muchnoi H.muramatsu Y.Nefedov F.Nerling I.B.Nikolaev 宁哲 S.Nisar 牛顺利牛讯伊馬鵬欧阳群 S.Pacetti 潘越 P.Patteri m.Pelizaeus 彭海平 K.Peters J.Pettersson 平加伦平荣刚 R.Poling V.Prasad 漆红荣祁鸣钱森乔从丰秦丽清覃拈秦小帅秦中华邱进发 K.H.Rashid C.F.Redmer m.Ripka 荣刚 Ch.Rosner 阮向东 A.Sarantsev m.Savrie K.Schoenning S.Schumann 单葳邵明沈成平沈培迅沈肖雁盛华义施萌宋维民宋欣颖 S.Sosio S.Spataro 孙功星孙俊峰孙胜森孙新华孙勇杰孙永昭孙志嘉孙振田唐昌建唐晓 I.Tapan E.H.Thorndike m.Tiemens m.Ullrich I.Uman G.S.Yarner 王斌王滨龙王东王大勇王科王亮亮王灵淑王萌王平王佩良王炜王维平王雄飞王越王雅迪王贻芳王亚乾王铮王志刚王志宏王至勇王宗源 T.Weber 魏代会 P.Weidenkaff 文硕频 U.Wiedner m.Wolke 伍灵慧吴连近吴智夏磊夏力钢夏宇肖栋肖浩肖振军谢宇广修青磊许国发徐静静徐雷徐庆君徐庆年徐新平严亮鄢文标闫文成颜永红杨海军杨洪勋杨柳杨永栩叶梅叶铭汉殷俊昊俞伯祥喻纯旭俞洁晟苑长征袁文龙袁野 A.Yuncu A.A.Zafar A.Zallo 曾云曾哲张丙新张炳云张驰张长春张达华张宏浩章红宇张晋张佳佳 Institute of High Energy Physics G.I.Budker Institute of Nuclear Physics SB RAS BINP the Novosibirsk State University Carnegie mellon University Bochum Ruhr-University University of Rochester University of Turin INFN University of Science and Technology of China State Key Laboratory of Particle Detection and Electronics INFN Laboratori Nazionali di Frascati Peking University Indiana University INFN Sezione di Ferrara University of minnesota Joint Institute for Nuclear Research the moscow Institute of Physics and Technology Carnegie mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan University Ankara University Istanbul Bilgi University the Functional Electronics Laboratory Tomsk State University Beihang University University of Chinese Academy of Sciences Nanjing University Lanzhou University Huangshan College Shanghai Jiao Tong University Helmholtz Institute mainz Johannes Gutenberg University of mainz Liaoning University Nankai University Zhengzhou University Tsinghua University University of Ferrara University of Eastern Piedmont GSI Helmholtzcentre for Heavy Ion Research GmbH Guangxi University Nanjing Normal University KVI-CART University of Groningen Henan Normal University University of Hawaii Uludag University Shandong University University of the Punjab Uppsala University Istanbul axel University Justus-Liebig-Universitaet Giessen Ⅱ.Physikalisches Institut Seoul National University Hangzhou Normal University Beijing Institute of Petrochemical Technology Sun Yat-Sen University Sichuan University Guangxi Normal University Shanxi University Henan University of Science and Technology University of Texas at Dallas Zhejiang University G.I.Budker Institute of Nuclear Physics SB RAS(BINP) COmSATS Institute of Information Technology INFN and University of Perugia Goethe University Frankfurt the NRC "Kurchatov Institute PNPI Near East University NicosiaNorth Cyprus Soochow University Hunan University University of South China China Center of Advanced Science and Technology B

By analyzing 2.93 fb-1 data collected at the center-of-mass energy v/S = 3.773 GeV with the BESIII detector, we measure the absolute branching fraction of the semileptonic decay D＋- k0e＋ ve via k0-π0π0 - （8.59 ± 0.14 ± 0.21）% using k0- k0-π0π0, where the first uncertainty is statistical and the second systematic. Our result is consistent with previous measurements within uncertainties..

关键词： charmed mesons semileptonic decays absolute branching fraction BESIII/BEPCII

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全球表层土壤中微生物群落的结构及功能

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家电科技 2018年第8期 8-8页

作者： mohammad Bahram Falk Hildebrand Sofia K. Forslund Jennifer L. Anderson Nadejda A. Soudzilovskaia Peter m. Bodegom Johan Bengtsson-Patme Sten Anslan Luis Pedro Coelho Helery Harend Jaime Huerta-Cepas marnix H. medema mia R. maltz Sunil mundra Pal axel Olsson mari Pent Sergei Polme Shinichi Sunagawa martin Ryberg Leho Tedersoo Peer Bork 李巧红(编译)

土壤中存在着地球上最多样化的微生物群落,它们对地球养分循环和碳储存都至关重要。为了更好的了解土壤功能,对土壤微生物的全球分布模式和功能基因序列进行建模,并了解土壤中细菌和真菌群落的多样性和结构之间的生物、环境联系是很有... 详细信息

土壤中存在着地球上最多样化的微生物群落,它们对地球养分循环和碳储存都至关重要。为了更好的了解土壤功能,对土壤微生物的全球分布模式和功能基因序列进行建模,并了解土壤中细菌和真菌群落的多样性和结构之间的生物、环境联系是很有必要的。

关键词：微生物群落表层土壤土壤功能结构土壤微生物基因序列分布模式真菌群落

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Sub-percent precision measurement of neutrino oscillation parameters with JUNO

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Chinese Physics C 2022年第12期46卷 28-49页

作者： Angel Abusleme Thomas Adam Shakeel Ahmad Rizwan Ahmed Sebastiano Aiello muhammad Akram Abid Aleem Fengpeng An Qi An Giuseppe Andronico Nikolay Anfimov Vito Antonelli Tatiana Antoshkina Burin Asavapibhop João Pedro Athayde marcondes de André Didier Auguste Weidong Bai Nikita Balashov Wander Baldini Andrea Barresi Davide Basilico Eric Baussan marco Bellato Antonio Bergnoli Thilo Birkenfeld Sylvie Blin David Blum Simon Blyth Anastasia Bolshakova mathieu Bongrand Clément Bordereau Dominique Breton Augusto Brigatti Riccardo Brugnera Riccardo Bruno Antonio Budano Jose Busto Ilya Butorov Anatael Cabrera Barbara Caccianiga Hao Cai Xiao Cai Yanke Cai Zhiyan Cai Riccardo Callegari Antonio Cammi Agustin Campeny Chuanya Cao Guofu Cao Jun Cao Rossella Caruso Cédric Cerna Chi Chan Jinfan Chang Yun Chang Guoming Chen Pingping Chen Po-An Chen Shaomin Chen Xurong Chen Yixue Chen Yu Chen Zhiyuan Chen Zikang Chen Jie Cheng Yaping Cheng Yu Chin Cheng Alexey Chetverikov Davide Chiesa Pietro Chimenti Artem Chukanov Gérard Claverie Catia Clementi Barbara Clerbaux Selma Conforti Di Lorenzo Daniele Corti Flavio Dal Corso Olivia Dalager Christophe De La Taille Zhi Deng Ziyan Deng Wilfried Depnering marco Diaz Xuefeng Ding Yayun Ding Bayu Dirgantara Sergey Dmitrievsky Tadeas Dohnal Dmitry Dolzhikov Georgy Donchenko Jianmeng Dong Evgeny Doroshkevich marcos Dracos Frédéric Druillole Ran Du Shuxian Du Stefano Dusini martin Dvorak Timo Enqvist Heike Enzmann Andrea Fabbri Donghua Fan Lei Fan Jian Fang Wenxing Fang marco Fargetta Dmitry Fedoseev Zhengyong Fei Li-Cheng Feng Qichun Feng Richard Ford Amélie Fournier Haonan Gan Feng Gao Alberto Garfagnini Arsenii Gavrikov marco Giammarchi Nunzio Giudice maxim Gonchar Guanghua Gong Hui Gong Yuri Gornushkin Alexandre Göttel marco Grassi Vasily Gromov minghao Gu Xiaofei Gu Yu Gu mengyun Guan Yuduo Guan Nunzio Guardone Cong Guo Jingyuan Guo Wanlei Guo Xinheng Guo Yuhang Guo Paul Hackspacher Caren Hagner Ran Han Yang Han miao He Wei He Tobias Heinz Patrick Hellmuth Yuekun Heng Rafael Herrera YuenKeung Ho Yerevan Physics Institute YerevanArmenia UniversiéLibre de Bruxelles BrusselsBelgium Universidade Estadual de Londrina LondrinaBrazil Pontificia Universidade Catolica do Rio de Janeiro Rio de JaneiroBrazil Pontificia Universidad Católica de Chile SantiagoChile Universidad Tecnica Federico Santa maria ValparaisoChile Beijing Institute of Spacecraft Environment Engineering BeijingChina Beijing Normal University BeijingChina China Institute of Atomic Energy BeijingChina Institute of High Energy Physics BeijingChina North China Electric Power University BeijingChina School of Physics Peking UniversityBeijingChina Tsinghua University BeijingChina University of Chinese Academy of Sciences BeijingChina Jilin University ChangchunChina College of Electronic Science and Engineering National University of Defense TechnologyChangshaChina Chongqing University ChongqingChina Dongguan University of Technology DongguanChina Jinan University GuangzhouChina Sun Yat-Sen University GuangzhouChina Harbin Institute of Technology HarbinChina University of Science and Technology of China HefeiChina The Radiochemistry and Nuclear Chemistry Group in University of South China HengyangChina Wuyi University JiangmenChina Shandong University JinanChinaand Key Laboratory of Particle Physics and Particle Irradiation of Ministry of EducationShandong UniversityQingdaoChina Institute of modern Physics Chinese Academy of SciencesLanzhouChina Nanjing University NanjingChina Guangxi University NanningChina East China University of Science and Technology ShanghaiChina School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghaiChina Tsung-Dao Lee Institute Shanghai Jiao Tong UniversityShanghaiChina Institute of Hydrogeology and Environmental Geology Chinese Academy of Geological SciencesShijiazhuangChina Nankai University TianjinChina Wuhan University WuhanChina Xi'an Jiaotong University Xi'anChina Xiamen University XiamenChina School of Physics and microelectronics Zhengzhou UniversityZhengzhou

JUNO is a multi-purpose neutrino observatory under construction in the south of *** publication presents new sensitivity estimates for the measurement of the △m_(31)^(2),△m_(21)^(2),sin^(2)θ_(12),and sin^(2)θ_(13) oscillation parameters using reactor antineutrinos,which is one of the primary physics goals of the *** sensitivities are obtained using the best knowledge available to date on the location and overburden of the experimental site,the nuclear reactors in the surrounding area and beyond,the detector response uncertainties,and the reactor antineutrino spectral shape constraints expected from the TAO satellite *** is found that the △m_(21)^(2) and sin^(2)θ_(12) oscillation parameters will be determined to 0.5%precision or better in six years of data *** the same period,the △m_(31)^(2) parameter will be determined to about 0.2%precision for each mass ordering *** new precision represents approximately an order of magnitude improvement over existing constraints for these three parameters.

关键词： neutrino oscillation reactor antineutrino precision measurement JUNO

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Feasibility and physics potential of detecting ^(8)B solar neutrinos at JUNO

引用

Chinese Physics C 2021年第2期45卷 93-110页

作者： Angel Abusleme Thomas Adam Shakeel Ahmad Sebastiano Aiello muhammad Akram Nawab Ali Fengpeng An Guangpeng An Qi An Giuseppe Andronico Nikolay Anfimov Vito Antonelli Tatiana Antoshkina Burin Asavapibhop João Pedro Athayde marcondes de André Didier Auguste Andrej Babic Wander Baldini Andrea Barresi Eric Baussan marco Bellato Antonio Bergnoli Enrico Bernieri David Biare Thilo Birkenfeld Sylvie Blin David Blum Simon Blyth Anastasia Bolshakova mathieu Bongrand Clément Bordereau Dominique Breton Augusto Brigatti Riccardo Brugnera Riccardo Bruno Antonio Budano max Buesken mario Buscemi Jose Busto Ilya Butorov Anatael Cabrera Hao Cai Xiao Cai Yanke Cai Zhiyan Cai Antonio Cammi Agustin Campeny Chuanya Cao Guofu Cao Jun Cao Rossella Caruso Cédric Cerna Jinfan Chang Yun Chang Pingping Chen Po-An Chen Shaomin Chen Shenjian Chen Xurong Chen Yi-Wen Chen Yixue Chen Yu Chen Zhang Chen Jie Cheng Yaping Cheng Alexander Chepurnov Davide Chiesa Pietro Chimenti Artem Chukanov Anna Chuvashova Gérard Claverie Catia Clementi Barbara Clerbaux Selma Conforti Di Lorenzo Daniele Corti Salvatore Costa Flavio Dal Corso Christophe De La Taille Jiawei Deng Zhi Deng Ziyan Deng Wilfried Depnering marco Diaz Xuefeng Ding Yayun Ding Bayu Dirgantara Sergey Dmitrievsky Tadeas Dohnal Georgy Donchenko Jianmeng Dong Damien Dornic Evgeny Doroshkevich marcos Dracos Frédéric Druillole Shuxian Du Stefano Dusini martin Dvorak Timo Enqvist Heike Enzmann Andrea Fabbri Lukas Fajt Donghua Fan Lei Fan Can Fang Jian Fang marco Fargetta Anna Fatkina Dmitry Fedoseev Vladko Fekete Li-Cheng Feng Qichun Feng Richard Ford Andrey Formozov Amélie Fournier Haonan Gan Feng Gao Alberto Garfagnini Alexandre Göttel Christoph Genster marco Giammarchi Agnese Giaz Nunzio Giudice Franco Giuliani maxim Gonchar Guanghua Gong Hui Gong Oleg Gorchakov Yuri Gornushkin marco Grassi Christian Grewing maxim Gromov Vasily Gromov minghao Gu Xiaofei Gu Yu Gu mengyun Guan Nunzio Guardone maria Gul Cong Guo Jingyuan Guo Wanlei Guo Xinheng Guo Yuhang Guo Paul Hackspacher Caren Hagner Ran Han Yan Yerevan Physics Institute YerevanArmenia UniversitéLibre de Bruxelles BrusselsBelgium Universidade Estadual de Londrina LondrinaBrazil Pontificia Universidade Catolica do Rio de Janeiro RioBrazil Pontificia Universidad Católica de Chile SantiagoChile Universidad Tecnica Federico Santa maria ValparaisoChile Beijing Institute of Spacecraft Environment Engineering BeijingChina Beijing Normal University BeijingChina China Institute of Atomic Energy BeijingChina Institute of High Energy Physics BeijingChina North China Electric Power University BeijingChina School of Physics Peking UniversityBeijingChina Tsinghua University BeijingChina University of Chinese Academy of Sciences BeijingChina Jilin University ChangchunChina College of Electronic Science and Engineering National University of Defense TechnologyChangshaChina Chongqing University ChongqingChina Dongguan University of Technology DongguanChina Jinan University GuangzhouChina Sun Yat-Sen University GuangzhouChina Harbin Institute of Technology HarbinChina University of Science and Technology of China HefeiChina The Radiochemistry and Nuclear Chemistry Group in University of South China HengyangChina Wuyi University JiangmenChina Shandong University JinanChina Institute of modern Physics Chinese Academy of SciencesLanzhouChina Nanjing University NanjingChina Guangxi University NanningChina East China University of Science and Technology ShanghaiChina School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghaiChina Tsung-Dao Lee Institute Shanghai Jiao Tong UniversityShanghaiChina Institute of Hydrogeology and Environmental Geology Chinese Academy of Geological SciencesShijiazhuangChina Nankai University TianjinChina Wuhan University WuhanChina Xi’an Jiaotong University Xi’anChina Xiamen University XiamenChina School of Physics and microelectronics Zhengzhou UniversityZhengzhouChina Institute of Physics National Chiao-Tung University Hsinchu National United University Miao-Li Department of Physics National T

The Jiangmen Underground Neutrino Observatory(JUNO)features a 20 kt multi-purpose underground liquid scintillator sphere as its main *** of JUNO's features make it an excellent location for^8B solar neutrino measurements,such as its low-energy threshold,high energy resolution compared with water Cherenkov detectors,and much larger target mass compared with previous liquid scintillator *** this paper,we present a comprehensive assessment of JUNO's potential for detecting^8B solar neutrinos via the neutrino-electron elastic scattering process.A reduced 2 meV threshold for the recoil electron energy is found to be achievable,assuming that the intrinsic radioactive background^(238)U and^(232)Th in the liquid scintillator can be controlled to 10^(-17)g/*** ten years of data acquisition,approximately 60,000 signal and 30,000 background events are *** large sample will enable an examination of the distortion of the recoil electron spectrum that is dominated by the neutrino flavor transformation in the dense solar matter,which will shed new light on the inconsistency between the measured electron spectra and the predictions of the standard three-flavor neutrino oscillation *** m^(2)_(21)=4.8times10^(-5);(7.5times10^(-5))eV^(2),JUNO can provide evidence of neutrino oscillation in the Earth at approximately the 3sigma(2sigma)level by measuring the non-zero signal rate variation with respect to the solar zenith ***,JUNO can simultaneously measureDelta m^2_(21)using^8B solar neutrinos to a precision of 20% or better,depending on the central value,and to sub-percent precision using reactor antineutrinos.A comparison of these two measurements from the same detector will help understand the current mild inconsistency between the value of Delta m^2_(21)reported by solar neutrino experiments and the KamLAND experiment.

关键词： neutrino oscillation solar neutrino JUNO

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