检索结果-南通市图书馆

Nondestructive technique for identifying nuclides using neutron resonance transmission analysis at CSNS Back-n

Nuclear Science and Techniques 2024年第1期35卷 178-187页

作者： Sheng-Da tang Yong-Hao Chen Jing-Yu tang Rui-Rui Fan Qiang Li Gong Li Dong Liu Zheng-Yao Jin Xing-Zhu Cui Tian-Xiang Chen Yi-Wei Yang Rong Liu Han Yi Yang Li Zhen Yang Qi An Hao-Fan Bai Jiang-Bo Bai jie Bao Ping Cao Qi-Ping Chen Zhen Chen Zeng-Qi Cui An-Chuan Fan Chang-qing Feng Fan-Zhen Feng Ke-qing Gao Min-Hao Gu Chang-Cai Han Zi-jie Han Guo-Zhu He Yong-Cheng He Yang Hong Yi-Wei Hu Han-Xiong Huang Wei-Hua Jia Hao-yu Jiang Wei Jiang Zhi-jie Jiang Ling Kang Bo Li Chao Li Jia-Wen Li Xiao Li jie Liu Shu-Bin Liu Guang-Yuan Luan Chang-Jun Ning Bin-Bin Qi jie Ren Zhi-Zhou Ren Xi-Chao Ruan Zhao-Hui Song Kang Sun Zhi-Xin tan Li-Jiao Wang Peng-Cheng Wang Zhao-Hui Wang Zhong-Wei Wen Xiao-Guang Wu Xuan Wu Li-Kun Xie Yong-Ji Yu Guo-Hui Zhang Lin-Hao Zhang Mo-Han Zhang Qi-Wei Zhang Xian-Peng Zhang Yu-Liang Zhang Yue Zhang Zhi-Yong Zhang Mao-Yuan Zhao Lu-Ping Zhou Zhi-Hao Zhou Ke-Jun Zhu Sino-French Institute of Nuclear Engineering and Technology Sun Yat-sen UniversityZhuhai 519082China Institute of High-Energy Physics Chinese Academy of Sciences(CAS)Beijing 100049China Spallation Neutron Source Science Center Dongguan 523803China School of Nuclear Science and Technology University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Particle Detection and Electronics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China USTC Archaeometry Laboratory University of Science and Technology of ChinaHefei 230026China Institute of Nuclear Physics and Chemistry China Academy of Engineering PhysicsMianyang 621900China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871China Key Laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China Northwest Institute of Nuclear Technology Xi’an 710024China University of Chinese Academy of Sciences Beijing 100049China

Nondestructive and noninvasive neutron assays are essential applications of neutron *** resonance transmission analysis(NRTA)is a powerful nondestructive method for investigating the elemental composition of an *** back-streaming neutron line(Back-n)is a newly built time-of-flight facility at the China Spallation Neutron Source(CSNS)that provides neutrons in the eV to 300 MeV range.A feasibility study of the NRTA method for nuclide identification was conducted at the CSNS Back-n via two test *** results demonstrate that it is feasible to identify different elements and isotopes in samples using the NRTA method at *** study reveals its potential future applications.

关键词： CSNS White neutron beam NRTA Nuclide identification Nondestructive method

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Study of the response of 10B-doped MCP to wide-energy range neutrons from eV to MeV

引用

Nuclear Science and Techniques 2024年第8期35卷 132-141页

作者： Qiang Li Li‑Jiao Wang Xiang‑Biao Qiu Jing‑Wen Li Wei Xu Tao Li Ze‑Bin Lin Chang‑Jun Ning Yong‑Hao Chen Rui‑Rui Fan Kang Sun Jing‑Yu tang Rong Zhang Han‑Tao Jing Bo Mei Qi An Hao‑Fan Bai Jiang‑Bo Bai jie Bao Ping Cao Qi‑Ping Chen Zhen Chen Zeng‑Qi Cui An‑Chuan Fan Chang‑qing Feng Fan‑Zhen Feng Ke‑qing Gao Min‑Hao Gu Chang‑Cai Han Zi‑jie Han Guo‑Zhu He Yong‑Cheng He Yang Hong Yi‑Wei Hu Han‑Xiong Huang Wei‑Hua Jia Hao‑Yu Jiang Wei Jiang Zhi‑jie Jiang Zheng‑Yao Jin Ling Kang Bo Li Chao Li Gong Li Jia‑Wen Li Xiao Li Yang Li jie Liu Rong Liu Shu‑Bin Liu Guang‑Yuan Luan Bin‑Bin Qi jie Ren Zhi‑Zhou Ren Xi‑Chao Ruan Zhao‑Hui Song Zhi‑Xin tan Sheng‑Da tang Peng‑Cheng Wang Zhao‑Hui Wang Zhong‑Wei Wen Xiao‑Guang Wu Xuan Wu Li‑Kun Xie Yi‑Wei Yang Han Yi Yong‑Ji Yu Guo‑Hui Zhang Lin‑Hao Zhang Mo‑Han Zhang Qi‑Wei Zhang Xian‑Peng Zhang Yu‑Liang Zhang Yue Zhang Zhi‑Yong Zhang Mao‑Yuan Zhao Lu‑Ping Zhou Zhi‑Hao Zhou Ke‑Jun Zhu Institute of High Energy Physics Chinese Academy of Sciences(CAS)Beijing 100049China Spallation Neutron Source Science Center Dongguan 523803China State Key Laboratory of Particle Detection and Electronics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Dongguan Songshan Lake Future School Dongguan 523808China North Night Vision Science&Technology(Nanjing)Research Institute Co.Ltd. Nanjing 211106China Sino‑French Institute of Nuclear Engineering and Technology Sun Yat-sen UniversityZhuhai 519082China School of Nuclear Science and Technology University of Science and Technology of ChinaHefei 230027China 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 State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871China Institute of Nuclear Physics and Chemistry China Academy of Engineering PhysicsMianyang 621900China Key Laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China USTC Archaeometry Lab University of Science and Technology of ChinaHefei 230026China Northwest Institute of Nuclear Technology Xi’an 710024China University of Chinese Academy of Sciences Beijing 100049China

Neutron-sensitive microchannel plates(nMCPs)have applications in neutron detection,including energy spectrum measurements,neutron-induced cross sections,and neutron imaging.10B-doped MCPs(B-MCPs)have attracted significant attention owing to their potential for exhibiting a high neutron detection efficiency over a large neutron energy *** spatial and temporal resolutions are useful for neutron energy-resolved ***,their practical applications still face many technical *** this study,a B-MCP with 10 mol%10B was tested for its response to wide-energy neutrons from eV to MeV at the Back-n white neutron source at the China Spallation Neutron *** neutron detection efficiency was calibrated at 1 eV,which is approximately 300 times that of an ordinary MCP and indicates the success of 10 B *** factors that caused the reduction in the detection efficiency were simulated and *** neutron energy spectrum obtained using B-MCP was compared with that obtained by other measurement methods,and showed very good consistency for neutron energies below tens of *** response is more complicated at higher neutron energy,at which point the elastic and nonelastic reactions of all nuclides of B-MCP gradually become *** is beneficial for the detection of neutrons,as it compensates for the detection efficiency of B-MCP for high-energy neutrons.

关键词： Neutron radiation image 10B-doped MCP Neutron response Wide-energy range neutrons

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

突发公共事件网络舆情风险的现代化协同治理机制:基于“事件—传播”的研究

引用

湘潭大学学报（哲学社会科学版） 2024年第4期48卷 160-164页

作者：向青平雷跃捷湘潭大学文学与新闻学院湖南湘潭411105 湖南大学新闻传播学院湖南长沙410082

随着现代风险社会及深度媒介化时代的到来,突发公共事件网络舆情风险往往由事件与传播双重逻辑耦合引发,常使国家陷入不确定性风险传播的被动响应中,因此需要建立突发公共事件网络舆情风险的现代化协同治理机制。在事件属性层面,应化解... 详细信息

随着现代风险社会及深度媒介化时代的到来,突发公共事件网络舆情风险往往由事件与传播双重逻辑耦合引发,常使国家陷入不确定性风险传播的被动响应中,因此需要建立突发公共事件网络舆情风险的现代化协同治理机制。在事件属性层面,应化解社会矛盾冲突、建立常态化社会治理机制,将数字技术作为提高舆情治理能力的基础设施,以社会治理现代化推动舆情风险治理的现代化;在媒介属性方面,要提高新型主流媒体突发公共事件舆论引导力,从舆情风险研判、预警及处置等层面进行全过程的舆情风险防范与治理。从整体性治理视角而言,建立网络舆情纵横协同应对,国家与社会、社会治理与传播治理的协同治理机制。通过现代化网络舆情风险协同治理机制的建立以提高国家应对突发公共事件网络舆情风险的韧性,适应中国式现代化国家治理的需要。

关键词：突发公共事件舆论引导风险治理国家韧性

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

基于多源数据与机器学习的降雨型滑坡灾害危险性动态预警

引用

地质论评 2024年第S1期70卷 217-218页

作者：付杰张青仉文岗中国地质调查局水文地质环境地质调查中心河北保定071051 重庆大学土木工程学院重庆400044

降雨型滑坡灾害是三峡库区发育的主要地质灾害之一,区域滑坡灾害危险性预警对滑坡风险减缓有重要意义。针对区域滑坡灾害危险性预警的时效性等问题,本文以重庆市云阳县为研究区,提出了基于多源数据与机器学习的滑坡灾害危险性动态预警方... 详细信息

降雨型滑坡灾害是三峡库区发育的主要地质灾害之一,区域滑坡灾害危险性预警对滑坡风险减缓有重要意义。针对区域滑坡灾害危险性预警的时效性等问题,本文以重庆市云阳县为研究区,提出了基于多源数据与机器学习的滑坡灾害危险性动态预警方法(图1)。1滑坡易发性空间预测滑坡易发性预测可准确地预测出潜在滑坡空间分布规律(黄发明等,2020;林高聪等,2023)。

关键词：降雨型滑坡滑坡危险性动态预警机器学习多源数据

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

2011—2021年我国乙型病毒性肝炎流行病学特征及时空聚集性分析

引用

现代预防医学 2024年第8期51卷 1384-1389页

作者：苏晓洁余擎厦门大学附属第一医院计算机中心

目的分析2011—2021年我国乙型病毒性肝炎的流行特征及时空聚集情况，为乙肝防控工作提供依据。方法通过《中国卫生健康统计年鉴》、中国疾病预防控制中心收集2011—2021年我国各地区乙肝发病情况数据，描述性分析乙肝流行趋势，通过... 详细信息

目的分析2011—2021年我国乙型病毒性肝炎的流行特征及时空聚集情况，为乙肝防控工作提供依据。方法通过《中国卫生健康统计年鉴》、中国疾病预防控制中心收集2011—2021年我国各地区乙肝发病情况数据，描述性分析乙肝流行趋势，通过空间自相关分析和时空扫描分析探究乙肝发病的全局与局部空间聚集性及时空聚集性。结果 2011—2021年，我国累计报告乙肝病例10 838 518例，乙肝年均发病率71.78/10万，该时段内乙肝发病下降趋势差异无统计学意义(Z=-1.557,P=0.120)。空间自相关结果显示，乙肝发病高—高聚集区有7个，以广东为主；乙肝发病低—低聚集区有3个，以上海、江苏为主。时空扫描结果表明，乙肝高发病聚集区在2011—2015年有2个，为西北地区，在2017—2021年有6个，转变为华南及其北部地区。乙肝低发病聚集区在2016—2021年有14个，主要分布在华东及东北地区。结论 2011—2021年，我国乙肝发病下降趋势不显著，乙肝发病存在空间及时空聚集性。未来，应加强高发地区的乙肝监测和防治资源配置。

关键词：乙型病毒性肝炎空间自相关时空扫描

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Antibacterial,antioxidant and antiproliferation activities of essential oils and ethanolic extracts from Chinese mugwort(Artemisia vulgaris L.)leaf in Shanxi

引用

Traditional Medicine Research 2024年第1期9卷 47-56页

作者： Hu-tan-Xian Zhang Feng-Ru Lyu Jia-Tong He Chen-Yu Liu Zheng-Yang Zhou Rui-jie Wu Zi-qing Zhao He Li School of Chemistry and Chemical Engineering North University of ChinaTaiyuan 030051China Shanxi Jinshuo Biomedical Technology Co. Ltd.Jinzhong 030600China

Background:Artemisia vulgaris,a medicinal aromatic plant,is widely used as a food item,tonic pharmaceutical,and cosmetic industry additive owing to its antibacterial,antihypertensive,hepatoprotective,antioxidant,and antispasmodic *** the effect of different geographic locations on the chemical composition and bioactivities of its extracts is ***:Biological activities of essential oils and ethanol extracts of three varieties of Artemisia vulgaris leaves,which are grown in Shanxi province China,were ***:Gas chromatography-mass spectrometry analysis revealed that the main components of essential oils were terpenes and *** oils and ethanol extract of Artemisia vulgaris leaves possessed good antioxidant activities,and their half maximal inhibitory concentrations determined using 1,1-diphenyl-2-picrylhydrazyl and 2,2’-azinobis-(3-ethylbenzthiazoline-6-sulphonate)assays were 57.0 and 22.9μg/mL,*** essential oils also exhibited remarkable antibacterial activity against three foodborne pathogenic bacterial *** ethanol extract presented a high anticancer activity against the MGC-803 human gastric cancer cell ***:These biological activities were well correlated with the composition of the extract and EOs,which in turn is affected by the genetic composition of Artemisia vulgaris and geographic location and diverse climatic condition under which it is *** findings demonstrate the remarkable potential of Artemisia vulgaris as a valuable source of antioxidant,antibacterial,and anticancer agents.

关键词： Artemisia vulgaris essential oils ethanol extracts antioxidant antiproliferation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

文化强国视域下中华体育精神:内涵、价值与赓续

引用

体育文化导刊 2024年第7期 32-39页

作者：黄洁清李娟沈阳大学体育学院沈阳110003

运用文献资料、逻辑归纳等方法,探究文化强国视域下中华体育精神的内涵、价值,并提出赓续路径。内涵:为国争光、无私奉献的爱国主义精神,科学求实、遵纪守法的实干精神,团结协作、顽强拼搏的奋斗精神。价值:推进文化铸魂,促进人的全面发... 详细信息

运用文献资料、逻辑归纳等方法,探究文化强国视域下中华体育精神的内涵、价值,并提出赓续路径。内涵:为国争光、无私奉献的爱国主义精神,科学求实、遵纪守法的实干精神,团结协作、顽强拼搏的奋斗精神。价值:推进文化铸魂,促进人的全面发展;增强文化自信,铸就社会主义文化新辉煌;深化文明交流,筑牢人类命运共同体文化根基。赓续路径:以文化自觉为动力,发展本民族体育文化;以文化自信为底气,推进体育文化为民服务;以文化传播为桥梁,扩大中华文化影响力。

关键词：体育管理中华体育精神文化强国

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Modified technical protocol for single-port laparoscopic appendectomy using needle-type grasping forceps for acute simple appendicitis:A case report

引用

World Journal of Gastrointestinal Surgery 2024年第10期16卷 3328-3333页

作者： Yang Chen Zong-Qi Fan Xin-Ao Fu Xiao-Xin Zhang jie-qing Yuan Shi-Gang Guo Department of Gastrointestinal Surgery Chaoyang Central HospitalChina Medical UniversityChaoyang 122000Liaoning ProvinceChina Department of Gastrointestinal Surgery Chaoyang Central HospitalPostgraduate Training Base of China Medical University and Jinzhou Medical UniversityChaoyang 122000Liaoning ProvinceChina

BACKGROUND Because of the mild inflammatory status in acute uncomplicated appendicitis,our team developed a novel technical protocol for single-port laparoscopic appendec-tomy using needle-type grasping forceps(SLAN)and achieved positive clinical ***,the intraoperative procedure lacked stability and fluency due to a series of problems highlighted by the small incision design of the proto-col(only 1 cm long).Therefore,there is a growing clinical demand to further opti-mize the SLAN *** SUMMARY An adult male patient was admitted for persistent right lower abdominal pain with preoperative computed tomography findings suggestive of appendicitis accompanied by localized peritonitis.A modified technical protocol for SLAN based on minimally invasive surgical principles was used,and the patient was confirmed to have acute simple appendicitis by postoperative pathological *** recovery was uneventful,and no postoperative complications,such as incision infection or severe incision pain,were *** patient was discharged successfully on postoperative day *** The modified technical protocol of SLAN may be a new minimally invasive surgical alternative for patients with acute simple appendicitis.

关键词： Acute appendicitis Single-port laparoscopy Appendectomy Minimally invasive surgery Case report

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

数据所有权:数字经济时代马克思主义所有制理论的新议题

引用

上海经济研究 2024年第9期 28-37页

作者：包炜杰陈晓青复旦大学马克思主义学院 200433

“数据所有权”作为马克思主义所有制理论在数字时代的新议题亟待深入研究和阐释。就其出场逻辑而言,既有生产资料的数字化与数字的生产资料化这一客观经济事实,又有劳动过程方面数据要素参与价值和剩余价值创造,与此同时,数据所有权鲜... 详细信息

“数据所有权”作为马克思主义所有制理论在数字时代的新议题亟待深入研究和阐释。就其出场逻辑而言,既有生产资料的数字化与数字的生产资料化这一客观经济事实,又有劳动过程方面数据要素参与价值和剩余价值创造,与此同时,数据所有权鲜明指向近年来数据要素收益价值分配失衡的现实问题。而探究数据收益分配失衡的发生机制时将会发现,从“数字圈地”“数据垄断”到“数据资本”,数据在现实经济关系中被平台资本所实际占有,并导致平台资本成为价值分配的最大受益者。因此,“数据所有权”及其核心议题“数据确权”的关键在于,有效平衡数据主体、数据处理者和社会整体利益,通过数据分级分类、“三权分置”等方式确认授权,从而有效增强马克思主义所有制理论在数字时代的解释力,推动数字经济时代马克思主义所有制理论的守正创新。

关键词：数据所有权马克思所有制数据资本数字劳动

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Retraction note to:Association between triglyceride-glucose index and colorectal polyps:A retrospective cross-sectional study

引用

World Journal of Gastrointestinal Endoscopy 2024年第8期16卷 500-501页

作者： Ya-jie Teng Ying-Xue Yang Jing-Jing Yang Qiu-Yan Lu Jia-Yi Shi Jian-Hao Xu jie Bao qing-Hua Wang Department of Gastroenterology The First People's Hospital of KunshanSuzhou 215300Jiangsu ProvinceChina Department of Pathology The First People's Hospital of KunshanSuzhou 215300Jiangsu ProvinceChina

We have decided to retract the above article because we have concluded that the limitations in our data sample may potentially lead to misinterpretation of the findings.

关键词： World Journal of Gastrointestinal Endoscopy Retraction note

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：