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Science china Earth sciences 2009年第10期52卷 1585-1598页

作者： zhang huai1, wu zhongliang1,{2.,2.& shi yaolin11 laboratory of computational Geodynamics, graduate university of chinese academy of sciences, beijing 100049, china 2.Institute of Geophysics, chinese Earthquake Administration, {12. 100081, china 1. laboratory of computational Geodynamics Graduate University of Chinese Academy of Sciences Beijing 100049 China 2. Institute of Geophysics Chinese Earthquake Administration Beijing 100081 China

Reasonable use of mathematical modeling and numerical simulation of regional earthquake activities has attracted more and more attentions in realistic seismicity studies in recent years. The inherent nature of their attendant multi-scale properties, from either the temporal or the spatial direction, necessitates the use of the cutting-edge massive parallel data processing techniques. Our study here is focused on the model construction and numerical simulation of the regional stress evolution after large earthquake sequences along the fault zones in Sichuan and Yunnan areas, using large-scale parallel finite element approximations with tens of millions of unstructured meshes on the distributed systems. The objective of our study is to provide a state-of-the-art model and a large-scale numerical simulation platform, on which estimation of the risk of large earthquake triggering sequences can be carried out in a middle or long-term time scale with realistic data and constrains inputted from field observation and geological survey.

关键词： Sichuan-Yunan area seismic processing parallel simulation initial stress field

Effect and Safety of Herbal Medicine Foot Baths in Patients with Diabetic Peripheral Neuropathy:A Multicenter Double-Blind Randomized Controlled Trial

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chinese Journal of Integrative Medicine 2024年第3期30卷 195-202页

作者： HUANG Hao-yue LIN Yu-ping WEI Hua FU Yu ZHOU Yue-hong FANG Zhao-hui QIU Xiao-tang wang Mei LI Qing-bo LI Shan-shan wang shi-dong DAI Fang liu Zhen-jie ZHAO Ling WEN Jian-xuan wu Li-yan ZENG hui-yan zhang Jin-ming LU Qi-yun HE liu SONG Wei SUN Lu LUO Lu-lu HE Jia-li XIE Wen-wen LIANG Qing-shun HUANG Yuan ZHU Sheng-ling LONG jie-er GAO Zhi-juan WEN Ze-huai LI Chun-ji OUyanG Wen-wei LI Geng wu Ming-hui LI An-xiang HUANG Jin-zhu Sanjoy K Paul TANG Xian-yu FAN Guan-jie Department of Endocrinology Guangdong Provincial Hospital of Chinese MedicineGuangzhou510120China The Second Clinical College of Guangzhou university of chinese Medicine Guangzhou510120China Department of Endocrinology The Second Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhou510120China Guangdong Provincial academy of chinese Medical {2. Guangzhou510120China Department of Endocrinology The First Affiliated Hospital of Henan University of Chinese MedicineZhengzhou450000China Department of Endocrinology Liuyang Hospital of Chinese MedicineChangsha410000China Department of Endocrinology The First Affiliated Hospital of Anhui University of Chinese MedicineHefei230000China Department of Endocrinology Hainan Provincial Hospital of Traditional Chinese MedicineHaikou570100China Department of Endocrinology The Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShenyang110000China Department of Geriatric Luoyang No.1 Hospital of Traditional Chinese MedicineLuoyangHenan Province471000China Department of Endocrinology The Second Affiliated Hospital of Guizhou University of Traditional Chinese MedicineGuiyang550000China Department of Endocrinology Beijing University of Chinese Medicine Affiliated Dongzhimen HospitalBeijing100000China Department of Endocrinology The First Affiliated Hospital of Guizhou University of Traditional Chinese MedicineGuiyang550000China Melbourne EpiCentre The University of Melbourne and Melbourne HealthMelbourne3013Australia

Objective:To evaluate the effect and safety of foot baths with Tangbi Waixi Decoction(TW)in treating patients with diabetic peripheral neuropathy(DPN).Methods:It is a multicenter double-blinded randomized controlled *** with DPN were recruited between November 18,2.16 and May 30,2.18 from 8 hospitals in *** patients received basic treatments for glycemic *** received foot baths with TW herbal granules either 66.9 g(intervention group)or 6.69 g(control group)for 30 min once a day for 2.weeks and followed by a 2.week rest,as a therapeutic *** the Toronto Clinical Scoring System total score(TCSS-TS)6 points,the patients received a total of 3 therapeutic courses(for 12.weeks)and were followed up for 12.*** primary outcome was change in TCSS-TS score at 12.and 2. *** outcomes included changes in bilateral motor nerve conduction velocity(MNCV)and sensory nerve conduction velocity(SNCV)of the median and common peroneal *** was also ***:Totally 632.patients were enrolled,and 317 and 315 were randomized to the intervention and control groups,*** the 12.week intervention,patients in both groups showed significant declines in TCSSTS scores,and significant increases in MNCV and SNCV of the median and common peroneal nerves compared with pre-treatment(P12.weeks and the increase of SNCV of median nerve at 2. weeks in the control group were greater than those in the intervention group(P0.05),and no serious adverse event was related with ***:Treatment of TW foot baths was safe and significantly benefitted patients with DPN.A low dose of TW appeared to be more effective than a high dose.(Registry *** CTR-IOR-16009331)

关键词： diabetic peripheral neuropathy herbal medicine foot baths chinese medicine randomized controlled trial Tangbi Waixi Decoction

The Chromosome-Based Rubber Tree Genome Provides New Insights into Spurge Genome Evolution and Rubber Biosynthesis

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Molecular Plant 2020年第2期13卷 336-350页

作者： Jin liu Cong shi Cheng-Cheng shi Wei Li Qun-jie zhang Yun zhang Kui Li hui-Fang Lu Chao shi Si-Tao Zhu Zai-Yun Xiao Hong Nan Yao Yue Xun-Ge Zhu Yu wu Xiao-Ning Hong Guang-Yi Fan yan Tong Dan zhang Chang-Li Mao Yun-Long liu shi-jie Hao Wei-Qing liu Mei-Qi Lv Hai-Bin zhang Yuan liu Ge-Ran Hu-tang Jin-Peng wang Jia-Hao wang Ying-huai Sun Shu-Bang Ni Wen-Bin Chen Xing-Cai zhang Yuan-Nian Jiao Evan E.Eichler Guo-Hua Li Xin liu Li-Zhi Gao Yunnan Institute of Tropical Crops Jinghong 666100China Plant Germplasm and Genomics Center Germplasm Bank of Wild Species in Southwestern ChinaKunming Institute of BotanyChinese Academy of SciencesKunming 650204China university of chinese {2. of sciences Beijing 100049China BGI-Qingdao Qingdao 266555China lnstitution of Genomics and Bioinformatics South China Agricultural UniversityGuangzhou 510642China Asia-Pacific Tropical Forestry Germplasm Institution Southwest China Forestry UniversityKunming 650224China School of Life sciences Nanjing UniversityNanjing 210023China Novogene Bioinformatics Institute Beijing 100083China BGI-Shenzhen Shenzhen 518083China State Key laboratory of Systematic and Evolutionary Botany Institute of BotanyChinese Academy of SciencesBeijing 100093China John A.Paulson School of Engineering and Applied sciences Harvard UniversityCambridgeMA 02138USA Howard Hughes Medical Institute University of WashingtonSeattleWA 98195USA

The rubber tree,Hevea brasiliensis,produces natural rubber that serves as an essential industrial raw ***,we present a high-quality reference genome for a rubber tree cultivar GT1 using single-molecule real-time sequencing(SMRT)and Hi-C technologies to anchor the～1.47-Gb genome assembly into 18 *** chromosome-based genome analysis enabled us to establish a model of spurge chromosome evolution,since the common paleopolyploid event occurred before the split of Hevea and *** show recent and rapid bursts of the three Hevea-specific LTR-retrotransposon families during the last 10 million years,leading to the massive expansion by～65.88%(～970 Mbp)of the whole rubber tree genome since the divergence from *** identify large-scale expansion of genes associated with whole rubber biosynthesis processes,such as basal metabolic processes,ethylene biosynthesis,and the activation of polysaccharide and glycoprotein lectin,which are important properties for latex production.A map of genomic variation between the cultivated and wild rubber trees was obtained,which contains～15.7 million high-quality single-nucleotide *** identified hundreds of candidate domestication genes with drastically lowered genomic diversity in the cultivated but not wild rubber trees despite a relatively short domestication history of rubber tree,some of which are involved in rubber *** genome assembly represents key resources for future rubber tree research and breeding,providing novel targets for improving plant biotic and abiotic tolerance and rubber production.

关键词： rubber tree rubber biosynthesis chromosome evolution whole-genome duplication domestication

基于白光中子源的^(197)Au中子辐射俘获截面测量及共振参数分析

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维普期刊数据库

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物理学报 2024年第7期73卷 104-113页

作者：罗淏天张奇玮栾广源王晓宇邹翀任杰阮锡超贺国珠鲍杰孙琪黄翰雄王朝辉吴鸿毅顾旻皓余滔解立坤陈永浩安琪白怀勇鲍煜曹平陈昊磊陈琪萍陈裕凯陈朕崔增琪樊瑞睿封常青高可庆韩长材韩子杰何泳成洪杨黄蔚玲黄锡汝季筱璐吉旭阳蒋伟江浩雨姜智杰敬罕涛康玲康明涛李波李超李嘉雯李论李强李晓李样刘荣刘树彬刘星言穆奇丽宁常军齐斌斌任智洲宋英鹏宋朝晖孙虹孙康孙晓阳孙志嘉谭志新唐洪庆唐靖宇唐新懿田斌斌王丽娇王鹏程王琦王涛峰文杰温中伟吴青彪吴晓光吴煊羊奕伟易晗于莉于永积张国辉张林浩张显鹏张玉亮张志永赵豫斌周路平周祖英朱丹阳朱科军朱鹏朱兴华中国原子能科学研究院核数据重点实验室北京102413 中国科学院高能物理研究所北京100049 散裂中子源科学中心东莞523803 核探测与核电子学国家重点实验室北京100049 中国科学技术大学近代物理系核探测与核电子学国家重点实验室合肥230026 北京大学物理学院核物理与核技术国家重点实验室北京100871 中国工程物理研究院核物理与化学研究所绵阳621900 西北核技术研究院西安710024 中国科学院大学北京100049 中国科学技术大学工程与应用物理系合肥230026 北京航空航天大学物理学院北京100083 华能山东石岛湾核电有限公司荣成264312

中子辐射俘获反应在反应堆运行、核装置设计及核天体物理研究中起重要的作用.4πBaF_(2.探测装置有着高时间分辨能力、低中子灵敏度、高探测效率等优点,适合开展中子辐射俘获反应截面数据的测量.中国原子能科学研究院核数据重点实验室... 详细信息

中子辐射俘获反应在反应堆运行、核装置设计及核天体物理研究中起重要的作用.4πBaF_(2.探测装置有着高时间分辨能力、低中子灵敏度、高探测效率等优点,适合开展中子辐射俘获反应截面数据的测量.中国原子能科学研究院核数据重点实验室建立了伽马全吸收装置(Gamma total absorption facility,GTAF),该装置用2.块六棱BaF_(2.晶体和12.五棱BaF_(2.晶体构成了外径2. cm,内径10 cm的球壳,覆盖了95.2.的立体角.利用GTAF在中国散裂中子源Back-n束线上,测量了197Au(n,γ)的反应截面数据.测量数据通过能量筛选、PSD方法、晶体多重性筛选进行了初步本底扣除,随后结合对^(nat)C及空样品的测量数据对本底进行了分析及扣除,获得了197Au俘获反应的产额,利用SAMMY程序拟合得到了^(197)Au在1—100 e V的共振能量、中子共振宽度和伽马共振宽度参数.实验测量结果与ENDF/B-VIII.0数据库符合良好,其共振参数存在一定差异,分析原因可能与GTAF能量分辨率、Back-n的中子能谱测量精度、以及实验本底扣除方法相关,这也是下一步工作的重点.

关键词：中子辐射俘获截面共振参数白光中子源伽马全吸收装置

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The heterogeneity of islet autoantibodies and the progression of islet failure in type 1 diabetic patients

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Science china(Life sciences) 2016年第9期59卷 930-939,938-939+932-937页

作者： Jin liu Lingling Bian Li Ji yang Chen Heng Chen Yong Gu Bingqin Ma Wei Gu Xinyu Xu Yun shi Jian wang Dalong Zhu Zilin Sun Jianhua Ma hui Jin Xing shi Heng Miao Bing Xin yan Zhu Zhenwen zhang Ruifang Bu Lan Xu Guangde shi Wei Tang Wei Li Dongmei Zhou Jun Liang Xingbo Cheng Bimin shi Jixiang Dong Ji Hu Chen Fang Shao Zhong Weinan Yu Weiping Lu Chenguang wu Li Qian Jiancheng Yu Jialin Gao Xiaoqiang Fei Qingqing zhang Xueqin wang shiwei Cui Jinluo Cheng Ning Xu Guofeng wang Guoqing Han Chunrong Xu Yun Xie Minmin An Wei zhang Zhixiao wang Yun Cai Qi Fu Yu Fu Shuai Zheng Fan yang Qingfang Hu Hao Dai Yu Jin Zheng zhang Kuanfeng Xu Yifan Li jie Shen Hongwen Zhou Wei He Xuqin Zheng Xiao Han Liping Yu Jinxiong She Mei zhang Tao yang Department of Endocrinology and Metabolism First Affiliated Hospital of Nanjing Medical University Nanjing 210029 China Barbara Davis Center for Childhood Diabetes University of Colorado Denver Aurora Colorado 80045 USA Key laboratory of Human Functional Genomics of Jiangsu Province Nanjing Medical University Nanjing 210000 China Department of Isotopic laboratory of Nanjing Medical university Nanjing 210000 China HLA laboratory of Jiangsu Province People's Hospital Nanjing 210029 China Department of Endocrinology and Metabolism Nanjing General Hospital of Nanjing Military Command Nanjing 210002 China Department of Endocrinology and Metabolism Nanjing Drum Tower Hospital The Affiliated Hospital of Nanjing University Medical School Nanjing 210008 China Department of Endocrinology and Metabolism Zhongda Hospital Southeast University Nanjing 210009 China Department of Endocrinology and Metabolism Nanjing First Hospital Nanjing 210000 China Department of Endocrinology and Metabolism Nanjing Children's Hospital Nanfing 210008 China Department of Endocrinology and Metabolism The Second Affiliated Hospital of Nanjing Medical University Nanjing 210011 China Department of Endocrinology and Metabolism Nanjing Governmental Hospital Nanjing 210008 China Department of Endocrinology and Metabolism Northern Jiangsu People's Hospital Yangzhou 225001 China Department of Endocrinology and Metabolism Wuxi People's Hospital Wuxi 214023 China Department of Endocrinology and Metabolism Jiangsu Jiangyin People's Hospital Wuxi 214400 China Department of Endocrinology and Metabolism The Affiliated Hospital of Xuzhou Medical College Xuzhou 221006 China Department of Endocrinology and Metabolism Xuzhou Central Hospital Xuzhou 221009 China Department of Endocrinology and Metabolism The First Affiliated Hospital of Soochow University Suzhou 215006 China Department of Endocrinology and Metabolism The Second Affiliated Hospital of Soochow University Suzhou 215004 China Department of Endocri

Type 1 diabetes mellitus is heterogeneous in many facets. The patients suffered from type 1 diabetes present several levels of islet function as well as variable number and type of islet-specific autoantibodies. This study was to investigate prevalence and heterogeneity of the islet autoantibodies and clinical phenotypes of type 1 diabetes mellitus; and also discussed the process of islet failure and its risk factors in chinese type 1 diabetic patients. A total of 1,2.1 type 1 diabetic patients were enrolled in this study. Demographic information was collected. laboratory tests including mixed-meal tolerance test, human leukocyte antigen alleles, hemoglobin A1 c, lipids, thyroid function and islet autoantibodies were conducted. The frequency of islet-specific autoantibody in newly diagnosed T1 DM patients(duration shorter than half year) was 73% in East{2.. According to binary logistic regressions, autoantibody positivity, longer duration and lower Body Mass Index were the risk factors of islet failure. As the disease developed, autoantibodies against glutamic acid decarboxylase declined as well as the other two autoantibodies against zinc transporter 8 and islet antigen 2. The decrease of autoantibodies was positively correlated with aggressive beta cell destruction. Autoantibodies can facilitate the identification of classic T1 DM from other subtypes and predict the progression of islet failure. As there were obvious heterogeneity in autoantibodies and clinical manifestation in different phenotypes of the disease, we should take more factors into consideration when identifying type 1 diabetes mellitus.

关键词： autoantibodies heterogeneity islet failure type 1 diabetes

Measurement of the neutron total cross section of carbon at the Back-n white neutron beam of CSNS

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Nuclear Science and Techniques 2019年第9期30卷 73-82页

作者： Xing-yan liu Yi-Wei yang Rong liu jie Wen Zhong-Wei Wen Zi-jie Han Zhi-Zhou Ren Qi An huai-Yong Bai jie Bao Ping Cao Qi-Ping Chen Yong-Hao Chen Pin-Jing Cheng Zeng-Qi Cui Rui-Rui Fan Chang-Qing Feng Min-Hao Gu Feng-Qin Guo Chang-Cai Han Guo-Zhu He Yong-Cheng He Yue-Feng He Han-Xiong Huang Wei-Ling Huang Xi-Ru Huang Xiao-Lu Ji Xu-yang Ji Hao-Yu Jiang Wei Jiang Han-Tao Jing Ling Kang Ming-Tao Kang Bo Li Lun Li Qiang Li Xiao Li yang Li yang Li Shu-Bin liu Guang-Yuan Luan Ying-Lin Ma Chang-Jun Ning Bin-Bin Qi jie Ren Xi-Chao Ruan Zhao-hui Song Hong Sun Xiao-yang Sun Zhi-Jia Sun Zhi-Xin Tan Hong-Qing Tang Jing-Yu Tang Peng-Cheng wang Qi wang Tao-Feng wang yan-Feng wang Zhao-hui wang Zheng wang Qing-Biao wu Xiao-Guang wu Xuan wu Li-Kun Xie Han Yi Li Yu Tao Yu Yong-Ji Yu Guo-hui zhang Jing zhang Lin-Hao zhang Li-Ying zhang Qing-Min zhang Qi-Wei zhang Xian-Peng zhang Yu-Liang zhang Zhi-Yong zhang Ying-Tan Zhao Liang Zhou Zu-Ying Zhou Dan-yang Zhu Ke-Jun Zhu Peng Zhu Institute of Nuclear Physics and Chemistry China Academy of Engineering Physics State Key laboratory of Particle Detection and Electronics Chinese Academy of Sciences(CAS) Department of Modern Physics University of Science and Technology of China State Key laboratory of Nuclear Physics and Technology School of PhysicsPeking University Key laboratory of Nuclear Data China Institute of Atomic Energy Institute of High Energy Physics Chinese Academy of Sciences(CAS) Spallation Neutron Source Science Center university of South china Northwest Institute of Nuclear Technology Department of Engineering and Applied Physics University of Science and Technology of China Beihang university Xi’an Jiaotong university

To verify the performance of the neutron total cross-sectional spectrometer, the neutron total cross section of carbon is initially measured in the energy range of 1 eV to 2. MeV using the time-of-flight method. The measurement is performed at the Back-n white neutron source with a 76-m time-of-flight path using the china Spallation Neutron Source. A multilayer fast fission chamber with 2.5U and 2.8U is employed as the neutron detector. The diameter and thickness of the natural graphite sample are 70 mm and 40 mm, respectively. Signal waveforms are collected using a data acquisition system. Off-line data processing was used to obtain the neutron time-of-flight spectra and transmissions. The uncertainty of the counting statistics is generally approximately 3% for each bin in the energy range of 1–2. MeV. It is determined that the results for the neutron total cross section of carbon obtained using ^2.5U cells are in good agreement with the results obtained using 2.8U cells within limits of statistical uncertainty. Moreover, the measured total cross sections show good agreement with the broadening evaluated data.

关键词： CSNS Back-n white neutron source NTOX Neutron total cross section Carbon Multilayer fast fission chamber

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基于反角白光中子源次级质子的探测器标定

物理学报 2021年第8期70卷 28-36页

作者：蒋伟江浩雨易晗樊瑞睿崔增琪孙康张国辉唐靖宇孙志嘉宁常军高可庆安琪白怀勇鲍杰鲍煜曹平陈昊磊陈琪萍陈永浩陈裕凯陈朕封常青顾旻皓韩长材韩子杰贺国珠何泳成洪杨黄翰雄黄蔚玲黄锡汝季筱璐吉旭阳姜智杰敬罕涛康玲康明涛李波李超李嘉雯李论李强李晓李样刘荣刘树彬刘星言栾广源穆奇丽齐斌斌任杰任智洲阮锡超宋朝晖宋英鹏孙虹孙晓阳谭志新唐洪庆唐新懿田斌斌王丽娇王鹏程王琦王涛峰王朝辉文杰温中伟吴青彪吴晓光吴煊解立坤羊奕伟于莉余滔于永积张林浩张奇玮张显鹏张玉亮张志永赵豫斌周路平周祖英朱丹阳朱科军朱鹏中国科学院高能物理研究所北京100049 散裂中子源科学中心东莞523803 北京大学物理学院核物理与核技术国家重点实验室北京100871 核探测与核电子学国家重点实验室中国科学院大学北京100049 中国科学技术大学近代物理系合肥230026 中国原子能科学研究院核数据重点实验室北京102413 中国工程物理研究院核物理与化学研究所绵阳621900 西北核技术研究院西安710024 中国科学技术大学工程与应用物理系合肥230026 北京航空航天大学物理学院北京100083

目前国内外的质子标定终端较少,且普遍为单能质子束流.基于中国散裂中子源的反角白光中子源的eV—2.0 MeV中子能量区间的白光中子束流,以及中子与氢的~1H(n, el)反应,可以获得宽能谱的能量连续次级质子.利用1 GSps采样率、12.bit的波形... 详细信息

目前国内外的质子标定终端较少,且普遍为单能质子束流.基于中国散裂中子源的反角白光中子源的eV—2.0 MeV中子能量区间的白光中子束流,以及中子与氢的~1H(n, el)反应,可以获得宽能谱的能量连续次级质子.利用1 GSps采样率、12.bit的波形数字化获取系统采集探测器输出波形信号,通过对波形信号的分析,得到中子及反冲质子的飞行时间,进而得到反冲质子的动能.利用该方法得到的质子,为探测器质子标定等研究提供了新的研究平台.在该研究平台已经开展了带电粒子望远镜的标定实验.研究了CsI (Tl)探测器不同的信号读出方式对望远镜的DE-E二维谱、幅度-质子动能二维谱等粒子鉴别方法得到的粒子鉴别的效果,得到了较优的探测器信号读出方案.该研究为带电粒子望远镜的建设提供了实验依据,也说明了基于反角白光中子源的宽能谱质子标定的可行性.

关键词：质子标定探测器 ~1H(n,el)反应反角白光中子源

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极早产儿存活率和并发症的多中心回顾性研究

中国当代儿科杂志 2021年第8期23卷 814-820页

作者：吴新萍谷传丽韩树萍邓晓毅陈筱青王淮燕李双双王军周勤侯玮玮高艳韩良荣刘红杰余章斌王增芹李娜李海欣周金君陈珊珊姜善雨路星星潘兆军陈小慧扬州市妇幼保健院新生儿科江苏扬州225001 南京医科大学附属妇产医院新生儿科江苏南京210004 徐州市妇幼保健院新生儿科江苏徐州221009 江苏省妇幼保健院新生儿科江苏南京210036 常州市妇幼保健院新生儿科江苏常州213003 南通市妇幼保健院新生儿科江苏南通226018 徐州医科大学附属医院新生儿科江苏徐州221002 无锡市妇幼保健院江苏无锡214002 苏北人民医院江苏扬州225001 连云港市妇幼保健院新生儿科江苏连云港222000 淮安市妇幼保健院新生儿科江苏淮安223002

目的研究极早产儿存活率和严重并发症发生情况,并分析其影响因素。方法回顾性收集2.18年1月至2.19年12.江苏省11家医院新生儿科收治的极早产儿(胎龄<32.)的一般资料,分析其存活率和严重并发症发生情况,采用多因素logistic回归分析评... 详细信息

目的研究极早产儿存活率和严重并发症发生情况,并分析其影响因素。方法回顾性收集2.18年1月至2.19年12.江苏省11家医院新生儿科收治的极早产儿(胎龄2.)的一般资料,分析其存活率和严重并发症发生情况,采用多因素logistic回归分析评估极早产儿死亡和严重并发症发生的危险因素。结果共纳入极早产儿2.39例,其中存活2.10例(85.93%),无严重并发症存活1507例(64.43%)。胎龄2.~2.^(+6)周、2.~2.^(+6)周、2.~2.^(+6)周、2.~2.^(+6)周、2.~2.^(+6)周、30~30^(+6)周、31~31^(^(+6))周各组极早产儿存活率分别是32.5%、60.6%、68.0%、82.9%、90.1%、92.3%、94.8%,随着胎龄增加,存活率呈升高趋势(P18.1%、34.5%、52.2.、66.7%、75.7%、81.8%,随着胎龄增加,无严重并发症存活率呈升高趋势(P1 min Apgar评分≤3分是极早产儿死亡的危险因素(P1 min Apgar评分≤3分可增加极早产儿死亡的风险,而胎龄大、出生体重大、母亲产前使用糖皮质激素与死亡风险降低有关。5 min Apgar评分≤3分和母亲绒毛膜羊膜炎可增加极早产儿严重并发症发生的风险,而胎龄大、出生体重大可降低严重并发症发生的风险。

关键词：存活率并发症危险因素极早产儿

基于CSNS反角白光中子源的中子俘获反应截面测量技术研究

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物理学报 2021年第22期70卷 28-39页

作者：张奇玮栾广源任杰阮锡超贺国珠鲍杰孙琪黄翰雄王朝辉顾旻皓余滔解立坤陈永浩安琪白怀勇鲍煜曹平陈昊磊陈琪萍陈裕凯陈朕崔增琪樊瑞睿封常青高可庆韩长材韩子杰何泳成洪杨黄蔚玲黄锡汝季筱璐吉旭阳蒋伟江浩雨姜智杰敬罕涛康玲康明涛李波李超李嘉雯李论李强李晓李样刘荣刘树彬刘星言穆奇丽宁常军齐斌斌任智洲宋英鹏宋朝晖孙虹孙康孙晓阳孙志嘉谭志新唐洪庆唐靖宇唐新懿田斌斌王丽娇王鹏程王琦王涛峰文杰温中伟吴青彪吴晓光吴煊羊奕伟易晗于莉于永积张国辉张林浩张显鹏张玉亮张志永赵豫斌周路平周祖英朱丹阳朱科军朱鹏朱兴华中国原子能科学研究院核数据重点实验室北京102413 中国科学院高能物理研究所北京100049 散裂中子源科学中心东莞523803 核探测与核电子学国家重点实验室北京100049 中国科学技术大学近代物理系合肥230026 北京大学物理学院核物理与核技术国家重点实验室北京100871 中国工程物理研究院核物理与化学研究所绵阳621900 西北核技术研究院西安710024 中国科学院大学北京100049 中国科学技术大学工程与应用物理系合肥230026 北京航空航天大学物理学院北京100083 华能山东石岛湾核电有限公司荣成264312

中子俘获反应截面数据在核天体物理研究、先进核能开发中具有非常重要的应用,由于缺乏合适的白光中子源和探测装置,国内在keV能区(1 eV-100 keV)中子俘获反应截面的实验数据几乎是空白.中国原子能科学研究院核数据重点实验室建造了国内... 详细信息

中子俘获反应截面数据在核天体物理研究、先进核能开发中具有非常重要的应用,由于缺乏合适的白光中子源和探测装置,国内在keV能区(1 eV-100 keV)中子俘获反应截面的实验数据几乎是空白.中国原子能科学研究院核数据重点实验室建造了国内第一台γ全吸收型探测装置,由40块BaF_(2.探测器单元组成厚度为15 cm,内半径为10 cm的BaF_(2.晶体球壳,共覆盖了95.2.的立体角.利用升级后的装置在中国散裂中子源的反角白光中子源上建立了中子俘获反应截面在线测量技术.在不规则的φ30 mm中子束斑的实验条件下,完成首次197Au中子俘获反应截面的在线测量,利用加和能谱和多重数分布扣除本底,反演飞行时间谱得到keV能区197Au中子俘获反应截面的实验数据.通过与ENDF评价数据库相关数据的比较,共振峰位置能够很好地吻合,从而验证了测量装置和测量技术的可靠性,为下一步高精度截面数据的获取奠定基础.

关键词： γ全吸收型探测装置中子俘获反应截面中国散裂中子源白光中子源