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Measurement of solar pp neutrino flux using electron recoil data from PandaX-4T commissioning run

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Chinese Physics C 2024年第9期48卷 1-7,300页

作者： Xiaoying Lu Abdusalam Abdukerim Zihao Bo Wei Chen Xun Chen Yunhua Chen Chen Cheng Zhaokan Cheng Xiangyi Cui Yingjie Fan Deqing Fang Lisheng Geng Karl Giboni Xuyuan Guo Chencheng Han Ke Han Changda He Jinrong He Di Huang Junting Huang Zhou Huang Ruquan Hou Yu Hou Xiangdong Ji Yonglin Ju Chenxiang Li Jiafu Li Mingchuan Li Shuaijie Li Tao Li Qing Lin Jianglai Liu Congcong Lu Lingyin Luo Yunyang Luo Wenbo Ma Yugang Ma Yajun Mao Yue Meng Xuyang Ning Binyu Pang Ningchun Qi Zhicheng Qian Xiangxiang Ren Nasir Shaheed Xiaofeng Shang xiyuan shao Guofang Shen Manbin Shen Lin Si Wenliang Sun Yi Tao Anqing Wang Meng Wang Qiuhong Wang shaobo Wang Siguang Wang Wei Wang Xiuli Wang Xu Wang Zhou Wang Yuehuan Wei Mengmeng Wu Weihao Wu Yuan Wu Mengjiao Xiao Xiang Xiao Kaizhi Xiong Binbin Yan Xiyu Yan Yong Yang Chunxu Yu Ying Yuan Zhe Yuan Youhui Yun Xinning Zeng Minzhen Zhang Peng Zhang Shibo Zhang Shu Zhang Tao Zhang Wei Zhang Yang Zhang Yingxin Zhang Yuanyuan Zhang Li Zhao Jifang Zhou Ning Zhou Xiaopeng Zhou Yubo Zhou Zhizhen Zhou Research Center for Particle Science and Technology Institute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao 266237China Key Laboratory of Particle Physics and Particle Irradiation of Ministry of Education Shandong UniversityQingdao 266237China School of Physics and Astronomy Shanghai Jiao Tong UniversityKey Laboratory for Particle Astrophysics and Cosmology(MoE)Shanghai Key Laboratory for Particle Physics and CosmologyShanghai 200240China New Cornerstone Science Laboratory Tsung-Dao Lee InstituteShanghai Jiao Tong UniversityShanghai 200240China Shanghai Jiao Tong University Sichuan Research Institute Chengdu 610213China Jinping Deep Underground Frontier Science and Dark Matter Key Laboratory of Sichuan Province Liangshan 615000China Yalong River Hydropower Development Company Ltd.288 Shuanglin RoadChengdu 610051China School of Physics Sun Yat-Sen UniversityGuangzhou 510275China Sino-French Institute of Nuclear Engineering and Technology Sun Yat-Sen UniversityZhuhai 519082China Department of Physics Yantai UniversityYantai 264005China Key Laboratory of Nuclear Physics and Ion-beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China School of Physics Beihang UniversityBeijing 102206China Beijing Key Laboratory of Advanced Nuclear Materials and Physics Beihang UniversityBeijing 102206China Peng Huanwu Collaborative Center for Research and Education Beihang UniversityBeijing 100191China Southern Center for Nuclear-Science Theory(SCNT) Institute of Modern PhysicsChinese Academy of SciencesHuizhou 516000China School of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China Department of Physics University of MarylandCollege ParkMaryland 20742USA State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China School of Physics Peking UniversityBeijing 100871Ch

The proton-proton(pp)fusion chain dominates the neutrino production in the *** uncertainty of the predicted pp neutrino flux is at the sub-percent level,whereas that of the best measurement is O(10%).In this study,for the first time,we measure solar pp neutrinos in the electron recoil energy range from 24 to 144 keV using the PandaX-4T commissioning data with 0.63 tonne×year *** pp neutrino flux is determined as(8.0±3.9(stat)±10.0(syst))×1010 s^(-1)cm^(-2),which is consistent with the Standard Solar Model and existing measurements,corresponding to an upper flux limit of 23.3×10^(10)s^(-1)cm^(-2)at 90%C.L..

关键词： solar pp neutrino flux PandaX-4T electron recoil spectrum

Chinese Medicine Combined with Adjuvant Chemotherapy for Improving Myelosuppression in Colorectal Cancer Patients:A Systematic Review and Network Meta-Analysis

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Chinese Journal of Integrative Medicine 2024年第7期30卷 643-652页

作者： LI Rui ZHANG Tong YAN shao-hua YAN Yun-zi DING Ya-cong WANG Yan-song YANG Yu-fei Department of Oncology China Academy of Chinese Medical SciencesXiyuan HospitalBeijing100091China Department of Oncology Dongfang Hospital Beijing University of Chinese MedicineBeijing100078China Graduate School Beijing University of Chinese MedicineBeijing100029China

Objective To assess the effectiveness of Chinese herbal medicine(CHM)combined with adjuvant chemotherapy on myelosuppression for colorectal cancer(CRC)patients using network meta-analysis(NMA).Methods Literature searches in both international(PubMed,Embase,Web of Science,and Cochrane Library)and Chinese(China Science and Technology Journal Database,Wanfang Data,China National Knowledge Infrastructure)databases for relevant randomized controlled trials(RCTs)were conducted from inception until October 10,*** included RCTs of patients who received CHM combined with chemotherapy,including FOLFOX,XELOX,FOLFIRI,and other relevant regimens in the CHM treatment *** outcomes included the incidence of myelosuppression,leukopenia,hemoglobin reduction,and *** reviewers independently screened the databases,extracted the data,and assessed the risk of bias and credibility of *** 5.4.1 software and STATA 14.0 were used to perform the *** A total of 31 RCTs were included,published from 2008 to 2021 in *** these,2,314 participants comparing the following 9 CHMs were identified:Shengbai Recipe(SBR),Bazhen Decoction(BZD),Jianpi Jiedu Recipe(JJR),Jianpi Recipe(JR),Compound Cantharis Capsule(CCC),Zaofan Pill(ZFP),Guilu Erxian Gel(GL),Buzhong Tiaogan Decoction(BZ),and Qiamagu Capsule(QM).The results of NMA found an indirect *** on the surface under the cumulative ranking curve(SUCRA),the ZFP+chemotherapy group had the lowest incidence of myelosuppression,with an odds ratio(OR)of 0.08[95%confidence interval(CI):0.01,0.76],whereas the GL+chemotherapy group had the lowest incidence of leukopenia,hemoglobin reduction,and thrombocytopenia,with an OR of 5.25(95%CI:2.41,11.43),4.66(95%CI:2.23,9.72),and 0.27(95%CI:0.13,0.54),***,BZD+chemotherapy could alleviate leukopenia,hemoglobin reduction,and thrombocytopenia(P<0.01).Pairwise comparison showed that there was no difference in the efficacy among the 8 CHMs+c

关键词： Chinese herbal medicine colorectal cancer network meta-analysis systematic review myelosuppression chemotherapy

Detecting neutrinos from supernova bursts in PandaX-4T

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Chinese Physics C 2024年第7期48卷 14-21页

作者：庞彬宇阿布都沙拉木·阿布都克力木薄子豪陈葳谌勋程晨成兆侃崔祥仪樊英杰方德清符长波付孟婷耿立升 Karl Giboni 顾琳慧郭绪元韩晨成韩柯何昶达何金荣黄迪黄彦霖黄俊挺黄周侯汝全侯钰季向东巨永林李晨翔李家富李名川李帅杰李涛林箐刘江来陆聪聪芦晓盈罗棱尹罗云阳马文博马余刚冒亚军孟月宁旭阳祁宁春钱志成任祥祥 Nasir Shaheed 尚晓凤邵熙元申国防司琳孙文良谈安迪陶奕王安庆王萌王秋红王少博王思广王为王秀丽王舟魏月环武蒙蒙邬维浩夏经铠肖梦姣肖翔谢鹏伟燕斌斌颜玺雨杨继军杨勇姚玉坤喻纯旭袁影苑哲鑫宁张丹张敏桢张鹏张世博张澍张涛张洋张瀛心张园园赵力郑其斌周济芳周宁周小朋周永周钰博 New Cornerstone Science Laboratory Tsung-Dao Lee InstituteShanghai Jiao Tong UniversityShanghai200240China Research Center for Particle Science and Technology Institute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao 266237ShandongChina Key Laboratory of Particle Physics and Particle Irradiation of Ministry of Education Shandong UniversityQingdao 266237ShandongChina School of Physics and Astronomy Shanghai Jiao Tong UniversityKey Laboratory for Particle Astrophysics and Cosmology(MoE)Shanghai Key Laboratory for Particle Physics and CosmologyShanghai 200240China Shanghai Jiao Tong University Sichuan Research Institute Chengdu 610213China School of Physics Sun Yat-Sen UniversityGuangzhou 510275China Sino-French Institute of Nuclear Engineering and Technology Sun Yat-Sen UniversityZhuhai519082China Department of Physics Yantai UniversityYantai 264005China Key Laboratory of Nuclear Physics and Ion-beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China School of Physics Peking UniversityBeijing 100871China School of Physics Beihang UniversityBeijing 102206China International Research Center for Nuclei and Particles in the Cosmos&Beijing Key Laboratory of Advanced Nuclear Materials and Physics Beihang UniversityBeijing 100191China School of Physics and Microelectronics Zhengzhou UniversityZhengzhouHenan 450001China Yalong River Hydropower Development Company Ltd.288 Shuanglin RoadChengdu 610051China School of Medical Instrument and Food Engineering University of Shanghai for Science and TechnologyShanghai 200093China School of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China Department of Physics University of MarylandCollege ParkMaryland 20742USA State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China School of Physics Nankai UniversityTian

Neutrinos from core-collapse supernovae are essential for understanding neutrino physics and stellar ***-phase xenon dark matter detectors can be used to track explosions of galactic supernovae by detecting neutrinos through coherent elastic neutrino-nucleus *** this study,a variation of progenitor masses and explosion models are assumed to predict neutrino fluxes and spectra,which result in the number of expected neutrino events ranging from 6.6 to 13.7 at a distance of 10 kpc over a 10-s duration with negligible backgrounds at *** specialized triggering alarms for monitoring supernova burst neutrinos are *** efficiency of detecting supernova explosions at various distances in the Milky Way is *** alarms will be implemented in the real-time supernova monitoring system at PandaX-4T in the near future,which will provide supernova early warnings for the astronomical community.

关键词： core-collapse supernovae neutrinos liquid xenon detectors supernova early warnings

Waveform simulation in PandaX-4T

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Chinese Physics C 2024年第7期48卷 1-13页

作者：李家富阿卜杜萨拉姆薄子豪陈葳谌勋程晨成赵侃崔祥仪樊英杰方德清耿立升 Karl Giboni 郭绪元韩晨成韩柯何昶达何金荣黄迪黄俊挺黄周侯汝全侯钰季向东巨永林李晨翔李名川李帅杰李涛林箐刘江来陆聪聪芦晓盈罗棱尹罗云阳马文博马余刚冒亚军孟月宁旭阳庞彬宇祁宁春钱志成任祥祥 Nasir Shaheed 尚晓凤邵熙元申国防司琳孙文良谈安迪陶奕王安庆王萌王秋红王少博王思广王为王秀丽王旭王舟魏月环武蒙蒙邬维浩吴渊肖梦姣肖翔燕斌斌阎玺宇杨勇喻纯旭袁影苑哲运有辉曾鑫宁张敏桢张鹏张世博张澍张涛张威张洋张瀛心张园园赵力周济芳周宁周小朋周永周钰博周知震 School of Physics and Astronomy Shanghai Jiao Tong UniversityKey Laboratory for Particle Astrophysics and Cosmology(MoE)Shanghai Key Laboratory for Particle Physics and CosmologyShanghai 200240China State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China School of Physics Beihang UniversityBeijing 102206China International Research Center for Nuclei and Particles in the Cosmos&Beijing Key Laboratory of Advanced Nuclear Materials and Physics Beihang UniversityBeijing 100191China School of Physics and Microelectronics Zhengzhou UniversityZhengzhou 450001China School of Physics Peking UniversityBeijing 100871China Yalong River Hydropower Development Company Ltd.288 Shuanglin RoadChengdu 610051China Research Center for Particle Science and Technology Institute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao 266237China Key Laboratory of Particle Physics and Particle Irradiation of Ministry of Education Shandong UniversityQingdao 266237China Department of Physics University of MarylandCollege ParkMaryland 20742USA Tsung-Dao Lee Institute Shanghai Jiao Tong UniversityShanghai200240China School of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China School of Physics Sun Yat-Sen UniversityGuangzhou 510275China Sino-French Institute of Nuclear Engineering and Technology Sun Yat-Sen UniversityZhuhai 519082China School of Physics and Astronomy Sun Yat-Sen UniversityZhuhai 519082China School of Physics Nankai UniversityTianjin 300071China Key Laboratory of Nuclear Physics and Ion-beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China Shanghai Jiao Tong University Sichuan Research Institute Chengdu 610213China SJTU Paris Elite Institute of Technology Shanghai Jiao Tong UniversityShanghai 200240China Department of Physics Yantai UniversityYantai 264005Ch

Signal reconstruction through software processing is a crucial component of the background and signal models in the PandaX-4T experiment,which is a multi-tonne dark matter direct search *** accuracy of signal reconstruction is influenced by various detector artifacts,including noise,dark count of photomultiplier,photoionization of impurities in the detector,and other relevant *** this study,we presented a detailed description of a semi-data-driven approach designed to simulate a signal *** work provides a reliable model for the efficiency and bias of the signal reconstruction in the data analysis of *** comparing critical variables that relate to the temporal shape and hit pattern of the signals,we found good agreement between the simulation and data.

关键词： dark matter time projection chamber simulation

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城际铁路道岔及配套交叉渡线设计研究

现代城市轨道交通 2024年第6期 1-5页

作者：谭茜元孙晗凌骆焱李鹏邵壮深圳市地铁集团有限公司广东深圳518038 中铁工程设计咨询集团有限公司北京100055

城际铁路是构建城市综合交通运输体系的重要环节,其“高密度、小编组、公交化”的特点对道岔提出高平顺性和高可靠性的要求。60 kg/m钢轨12号可动心轨辙叉单开道岔及配套交叉渡线在城际铁路领域的用量较大、适用范围较广。为此,文章针... 详细信息

城际铁路是构建城市综合交通运输体系的重要环节,其“高密度、小编组、公交化”的特点对道岔提出高平顺性和高可靠性的要求。60 kg/m钢轨12号可动心轨辙叉单开道岔及配套交叉渡线在城际铁路领域的用量较大、适用范围较广。为此,文章针对城际铁路60 kg/m钢轨12号可动心轨辙叉单开道岔及其配套交叉渡线设计展开研究,内容包括单开道岔平面线形设计、5.0 m间距交叉渡线平面线形设计,以及道岔区轨道刚度均匀化设计,并在设计时尽量采用成熟技术,增强部件的通用性,以方便养护维修及运维管理。希望能够弥补城际铁路道岔产品类型的不足,形成适用于速度200 km/h及以下线路的60 kg/m钢轨12号道岔产品,为日后城际铁路道岔的选型设计提供参考和借鉴。

关键词：城际铁路道岔可动心轨辙叉交叉渡线平面线形设计刚度均匀化

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基于聚类算法的热试验加热器布局设计与优化

航天器环境工程 2024年第4期41卷 421-429页

作者：龚喆侯雅琴李西园吴东亮邵华高庆华李琼中国空间技术研究院北京卫星环境工程研究所北京100094

针对目前航天器热试验中热流模拟需求复杂、加热回路设计效率低以及不易量化等问题,文章以某型号中的一组热控模拟件为典型对象,通过有限元方法建立不同特征长度组件和薄膜电加热器组合所对应的温度不均匀度模型;提出基于温度不均匀度... 详细信息

针对目前航天器热试验中热流模拟需求复杂、加热回路设计效率低以及不易量化等问题,文章以某型号中的一组热控模拟件为典型对象,通过有限元方法建立不同特征长度组件和薄膜电加热器组合所对应的温度不均匀度模型;提出基于温度不均匀度距离的聚类方法,并开展基于MATLAB的聚类仿真。与欧几里得距离聚类的对比表明,在同等条件下温度不均匀度距离算法可将温度不均匀度降低30%左右。此外,对比了聚类簇数、加热表面细分数及待加热表面数量等参数对聚类结果和温度不均匀度的影响,可为未来热试验中的加热回路布局设计与优化提供参考。

关键词：航天器热试验聚类算法薄膜电加热器热设计温度不均匀度

基于自适应联邦滤波的双功能深海潜器模式切换方法

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传感技术学报 2019年第9期32卷 1283-1288页

作者：邵鑫陈熙源东南大学仪器科学与工程学院

针对双功能深海潜器在滑翔模式和巡航模式切换时滤波震荡甚至发散的问题,提出了一种改进的基于INS/GPS/电子罗盘的自适应联邦滤波算法。为了得到更优的全局状态估计,设计了基于P范数的信息反馈方法,该方法能够根据各子滤波器的估计精度... 详细信息

针对双功能深海潜器在滑翔模式和巡航模式切换时滤波震荡甚至发散的问题,提出了一种改进的基于INS/GPS/电子罗盘的自适应联邦滤波算法。为了得到更优的全局状态估计,设计了基于P范数的信息反馈方法,该方法能够根据各子滤波器的估计精度实时调整反馈系数。最后,将该自适应联邦滤波算法应用到了深海潜器模式切换场景中,并与传统的卡尔曼滤波方法进行了仿真对比,结果表明自适应联邦滤波的位置精度提升了18%,收敛速度提升了25%,实际工程意义重大。

关键词：双功能深海潜器模式切换自适应联邦滤波 P范数

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一种用于网络入侵检测的杂交聚类算法研究

计算机工程 2007年第4期33卷 125-127页

作者：肖立中邵志清钱夕元华东理工大学信息科学与工程学院上海200237 华东理工大学理学院上海200237

针对K均值聚类算法在全局优化中的不足,提出了基于粒子群的K均值(PSO-KM)聚类算法。粒子群优化算法作为一种基于群智能方法的演化计算技术,有很好的全局搜索能力。通过理论分析及实验证明,该算法有较好的全局收敛性,能有效地克服传统的... 详细信息

针对K均值聚类算法在全局优化中的不足,提出了基于粒子群的K均值(PSO-KM)聚类算法。粒子群优化算法作为一种基于群智能方法的演化计算技术,有很好的全局搜索能力。通过理论分析及实验证明,该算法有较好的全局收敛性,能有效地克服传统的K均值算法易陷入局部极小值的缺点。对KDD-99数据集的仿真实验结果表明,该算法在入侵检测中能获得令人满意的检测率和误检率。

关键词：粒子群优化 K均值算法全局优化入侵检测

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基于网络连接分析的DDoS攻击检测模型

计算机工程 2006年第10期32卷 135-136,166页

作者：吴庆涛邵志清钱夕元华东理工大学计算机科学与工程系上海200237 华东理工大学理学院上海200237

分布式拒绝服务(DistributedDenialofService,DDoS)攻击是当前网络安全的主要威胁之一。通过对网络连接特征的分析,提出了一种DDoS攻击检测模型。该模型利用DDoS早期攻击阶段的固有特性,从网络连接数据的统计分析中探寻系统正常行为的... 详细信息

分布式拒绝服务(DistributedDenialofService,DDoS)攻击是当前网络安全的主要威胁之一。通过对网络连接特征的分析,提出了一种DDoS攻击检测模型。该模型利用DDoS早期攻击阶段的固有特性,从网络连接数据的统计分析中探寻系统正常行为的分布规律并确定DDoS攻击检测阈值。最后,通过模拟攻击实验验证了检测模型的有效性。实验结果表明,该模型能快速有效地实现对早期DDoS攻击的检测,并对其他网络安全检测研究具有一定的指导意义。

关键词：分布式拒绝服务统计分析攻击检测