检索结果-南通市图书馆

The Lyman-alpha Solar Telescope(LST) for the ASO-S mission——Ⅱ. design of LST

在线全文

学校读者我要写书评

暂无评论

Research in Astronomy and Astrophysics 2019年第11期19卷 33-48页

作者： Bo chen Hui Li Ke-Fei Song Quan-Feng Guo Pei-jie Zhang Ling-ping He Shuang Dai Xiao-Dong Wang Hai-Feng Wang Chun-Long liu Hong-Ji Zhang guang Zhang Yunqi Wang shi-jie liu Hong-Xin Zhang Lei liu shi-Lei Mao Yang liu Jia-Hao Peng Peng Wang Liang Sun Yang liu Zhen-Wei Han Yan-Long Wang kun Wu guang-Xing ding Peng Zhou Xin Zheng Ming-Yi Xia Qing-Wen Wu Jin-Jiang Xie Ya chen Shu-Mei Song Hong Wang Bo zhu Chang-Bo Chu Wen-Gang Yang Li Feng Yu Huang Wei-Qun Gan Ying Li Jing-Wei Li Lei Lu Jian-Chao Xue Bei-Li Ying Ming-Zhe Sun cheng zhu Wei-Min Bao Lei Deng Zeng-Shan Yin Changchun Institute of Optics FineMechanics and PhysicsChinese Academy of SciencesChangchun 130033China State Key Laboratory of Applied Optics Changchun 130033China Key Laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210034China School of Astronomy and Space Science University of Science and Technology of ChinaHefei 230026China Xi’an Institute of Optics and Precision Mechanics Chinese Academy of SciencesXi’an 710119China Shandong University Weihai 264209China Innovation Academy for Microsatellites Chinese Academy of SciencesShanghai 201210China

As one of the three payloads for the Advanced Space-based Solar Observatory(ASO-S)mission,the Lyman-alpha(Lyα)Solar Telescope(LST)is composed of three instruments:a Solar Corona Imager(SCI),a LyαSolar Disk Imager(SDI)and a full-disk White-light Solar Telescope(WST).When working in-orbit,LST will simultaneously perform high-resolution imaging observations of all regions from the solar disk to the inner corona up to 2.5 R⊙(R⊙stands for the mean solar radius)with a spatial resolution of 4.8′′and 1.2′′for coronal and disk observations,respectively,and a temporal resolution of 30–120 s and 1–120 s for coronal and disk observations,*** maximum exposure time can be up to20 s due to precise pointing and image stabilization *** the three telescopes of LST,SCI is a dual-waveband coronagraph simultaneously and independently observing the inner corona in the HI Lyα(121.6±10 nm)line and white light(WL)(700±40 nm)wavebands by using a narrowband Lyαbeam splitter and has a field of view(FOV)from 1.1 to 2.5 R⊙.The stray-light suppression level can attain<10^-6 B⊙(B⊙is the mean brightness of the solar disk)at 1.1 R⊙and≤5×10^-8 B⊙at 2.5 R⊙.SDI and WST are solar disk imagers working in the Lyαline and 360.0 nm wavebands,respectively,which adopt an off-axis two-mirror reflective structure with an FOV up to 1.2 R⊙,covering the inner coronal edge area and relating to coronal *** present the up-to-date design for the LST payload.

关键词： telescopes—instrumentation high angular resolution—Sun flares—Sun coronal mass ejections(CMEs)—Sun UV radiation

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

在线全文

学校读者我要写书评

暂无评论

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

Measurement of the ^(232)Th(n,f)cross section in the 1-200 MeV range at the CSNS Back-n

在线全文

学校读者我要写书评

暂无评论

Nuclear Science and Techniques 2023年第8期34卷 142-153页

作者： Zhi-Zhou Ren Yi-Wei Yang Yong-Hao chen Rong liu Bang-Jiao Ye jie Wen Hai-Rui Guo Zi-jie Han Qi-ping chen Zhong-Wei Wen Wei-Li Sun Han Yi Xing-Yan liu Tao Ye Jiang-Bo Bai Qi An jie Bao Yu Bao ping Cao Hao-Lei chen Zhen chen Zeng-Qi cui Rui-Rui Fan Chang-Qing Feng Ke-Qing Gao Xiao-Long Gao Min-Hao Gu Chang-Cai Han Guo-zhu He Yong-cheng He Yang Hong Yi-Wei Hu Han-Xiong Huang Xi-Ru Huang Hao-Yu Jiang Wei Jiang Zhi-jie Jiang Han-Tao Jing Ling Kang Bo Li Chao Li Jia-Wen Li Qiang Li Xiao Li Yang Li jie liu Shu-Bin liu Ze Long guang-Yuan Luan Chang-Jun Ning Meng-chen Niu Bin-Bin Qi jie Ren Xi-Chao Ruan Zhao-Hui Song Kang Sun Zhi-Jia Sun Zhi-Xin Tan Jing-Yu Tang Xin-Yi Tang Bin-Bin Tian Li-Jiao Wang Peng-cheng Wang Zhao-Hui Wang Xiao-guang Wu Xuan Wu Li-kun Xie Xiao-Yun Yang Li Yu Tao Yu Yong-Ji Yu Guo-Hui Zhang Lin-Hao Zhang Qi-Wei Zhang Xian-Peng Zhang Yu-Liang Zhang Zhi-Yong Zhang Lu-ping Zhou Zhi-Hao Zhou Ke-Jun zhu Department of Modern Physics University of Science and Technology of ChinaHefei 230026China Institute of Nuclear Physics and Chemistry China Academy of Engineering PhysicsMianyang 621900China Institute of High Energy Physics Chinese Academy of Sciences(CAS)Beijing 100049China Spallation Neutron Source Science Center Dongguan 523803China Institute of Applied Physics and Computational Mathematics Beijing 100088China State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230027China Key Laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China School of Nuclear Science and Technology University of Science and Technology of ChinaHefei 230027China State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871China State Key Laboratory of Particle Detection and Electronics Institute of High Energy PhysicsChinese Academy of SciencesBeijingChina Northwest Institute of Nuclear Technology Xi’an 710024China University of Chinese Academy of Sciences Beijing 100049China Department of Engineering and Applied Physics University of Science and Technology of ChinaHefei 230026China

The ^(232)Th(n,f)cross section is very important in basic nuclear physics and applications based on the Th/U fuel *** the time-of-flight method and a multi-cell fast-fission ionization chamber,a novel measurement of the^(232)Th(n,f)cross sec-tion relative to^(235)U in the 1–200 MeV range was performed at the China Spallation Neutron Source Back-n white neutron source(Back-n).The fission event-neutron energy spectra of^(232)Th and^(235)U fission cells were measured in the single-bunch *** 232Th/235U fission cross-sectional ratios were obtained,and the measurement uncertainties were 2.5–3.7%for energies in the 2–20 MeV range and 3.6–6.2%for energies in the 20–200 MeV ***^(232)Th(n,f)cross section was obtained by introducing the standard cross section of^(235)U(n,f).The results were compared with those of previous theoreti-cal calculations,measurements,and *** measured 232Th fission cross section agreed with the main evaluation results in terms of the experimental uncertainty,and 232Th fission resonances were observed in the 1–3 MeV *** present results provide^(232)Th(n,f)cross-sectional data for the evaluation and design of Th/U cycle nuclear systems.

关键词： 232Th(n f)cross section Fast-fission ionization chamber Back-n white neutron source

Back-n white neutron source at CSNS and its applications

在线全文

学校读者我要写书评

暂无评论

Nuclear Science and Techniques 2021年第1期32卷 95-104页

作者： Jing-Yu Tang Qi An Jiang-Bo Bai jie Bao Yu Bao ping Cao Hao-Lei chen Qi-ping chen Yong-Hao chen Zhen chen Zeng-Qi cui Rui-Rui Fan Chang-Qing Feng Ke-Qing Gao Xiao-Long Gao Min-Hao Gu Chang-Cai Han Zi-jie Han Guo-zhu He Yong-cheng He Yang Hong Yi-Wei Hu Han-Xiong Huang Xi-Ru Huang Hao-Yu Jiang Wei Jiang Zhi-jie Jiang Han-Tao Jing Ling Kang Bo Li Chao Li Jia-Wen Li Qiang Li Xiao Li Yang Li jie liu Rong liu Shu-Bin liu Xing-Yan liu Ze Long guang-Yuan Luan Chang-Jun Ning Meng-chen Niu Bin-Bin Qi jie Ren Zhi-Zhou Ren Xi-Chao Ruan Zhao-Hui Song Kang Sun Zhi-Jia Sun Zhi-Xin Tan Xin-Yi Tang Bin-Bin Tian Li-Jiao Wang Peng-cheng Wang Zhao-Hui Wang Zhong-Wei Wen Xiao-guang Wu Xuan Wu Li-kun Xie Xiao-Yun Yang Yi-Wei Yang Han Yi Li Yu Tao Yu Yong-Ji Yu Guo-Hui Zhang Lin-Hao Zhang Qi-Wei Zhang Xian-Peng Zhang Yu-Liang Zhang Zhi-Yong Zhang Lu-ping Zhou Zhi-Hao Zhou Ke-Jun zhu 无 State Key Laboratory of Particle Detection and Electronics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China Institute of Nuclear Physics and Chemistry China Academy of Engineering PhysicsMianyang 621900China Key Laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Spallation Neutron Source Science Center Dongguan 523803China State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871China Northwest Institute of Nuclear Technology Xi’an 710024China University of Chinese Academy of Sciences Beijing 100049China Department of Engineering and Applied Physics University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China The CSNS Back-n Collaboration

Back-streaming neutrons from the spallation target of the China Spallation Neutron Source(CSNS)that emit through the incoming proton channel were exploited to build a white neutron beam facility(the so-called Back-n white neutron source),which was completed in March *** Back-n neutron beam is very intense,at approximately 29107 n/cm2/s at 55 m from the target,and has a nominal proton beam with a power of 100 kW in the CSNS-I phase and a kinetic energy of 1.6 GeV and a thick tungsten target in multiple slices with modest moderation from the cooling water through the *** addition,the excellent energy spectrum spanning from 0.5 eV to 200 MeV,and a good time resolution related tothe time-of-flight measurements make it a typical white neutron source for nuclear data measurements;its overall performance is among that of the best white neutron sources in the *** with advanced spectrometers,detectors,and application utilities,the Back-n facility can serve wide applications,with a focus on neutron-induced cross-sectional *** article presents an overview of the neutron beam characteristics,the experimental setups,and the ongoing applications at Backn.

关键词： White neutron source Nuclear data measurements Experimental setups Neutron applications

Detection of an anti-angina therapeutic module in the effective population treated by a multi-target drug Danhong injection:a randomized trial

在线全文

学校读者我要写书评

暂无评论

Signal Transduction and Targeted Therapy 2021年第10期6卷 3009-3018页

作者： Jun liu Dan-Dan Li Wei Dong Yu-Qi liu Yang Wu Da-Xuan Tang fu-Chun Zhang Meng Qiu Qi Hua Jing-Yu He Jun Li Bai Du Ting-Hai Du Lin-Lin Niu Xue-Jun Jiang Bo cui Jiang-Bin chen Yang-Gan Wang Hai-Rong Wang Qin Yu Jing He Yi-Lin Mao Xiao-Fang Bin Yue Deng Yu-Dan Tian Qing-Hua Han Da-Jin liu Li-Qin Duan Ming-Jun Zhao cui-Ying Zhang Hai-Ying Dai Ze-Hua Li Ying Xiao You-Zhi Hu Xiao-Yu Huang kun Xing Xin Jiang Chao-Feng liu Jing An Feng-Chun Li Tao Tao Jin-Fa Jiang Ying Yang Yao-Rong Dong Lei Zhang guang fu Ying Li Shu-Wei Huang Li-ping Dou Lan-Jun Sun Ying-Qiang Zhao jie Li Yun Xia Jun liu Fan liu Wen-Jin He Ying Li Jian-Cong Tan Yang Lin Ya-Bin Zhou Jian-Fei Yang Guo-Qing Ma Hui-Jun chen He-ping liu Zong-Wu liu Jian-Xiong liu Xiao-Jia Luo Xiao-Hong Bin Ya-Nan Yu Hai-Xia Dang Bing Li Fei Teng Wang-Min Qiao Xiao-Long zhu Bing-Wei chen Qi-guang chen Chun-Ti Shen Yong-Yan Wang Yun-Dai chen Zhong Wang Institute of Basic Research in Clinical Medicine China Academy of Chinese Medical SciencesBeijingChina Department of Cardiology Chinese PLA General HospitalBeijingChina Department of Cardiology Dongfang Hospital Affiliated to Beijing University of Chinese MedicineBeijingChina Department of Geratology Peking University Third HospitalBeijingChina Department of Cardiology Xuan Wu HospitalCapital Medical UniversityBeijingChina Department of Cardiology Guang'anmen HospitalChina Academy of Chinese Medical SciencesBeijingChina Department of Cardiology First Affiliated Hospital of Henan University of Chinese MedicineZhengzhouHenanChina Department of Cardiology Wuhan University Renmin HospitalWuhanHubeiChina Department of Cardiology Wuhan University Zhongnan HospitalWuhanHubeiChina Affiliated Zhongshan Hospital of Dalian University DalianLiaoningChina Department of Cardiology Second Affiliated Hospital to Hunan University of Chinese MedicineChangshaHunanChina Department of Cardiology First Affiliated Hospital to Changchun University of Chinese MedicineChangchunJilinChina Department of Cardiology First Affiliated Hospital to Shanxi Medical UniversityTaiyuanShanxiChina Department of Cardiology Affiliated Hospital of Shanxi University of Chinese MedicineXianyangShanxiChina Department of Cardiology Changsha Central HospitalChangshaHunanChina Department of Cardiology Hubei Provincial Hospital of Traditional Chinese MedicineWuhanHubeiChina Department of Cardiology Shanxi Provincial People's HospitalXi'anShanxiChina Department of Cardiology Shanxi Province Hospital of Traditional Chinese MedicineXi'anShanxiChina Department of Cardiology Xi'an City Hospital of Traditional Chinese MedicineXi'anShanxiChina Department of Cardiology Shanghai Tongji HospitalShanghaiChina Department of Cardiology Shanghai Municipal Hospital of Traditional Chinese MedicineShanghaiChina Department of Cardiology The First Hospital of ChangshaChangshaHunanChina Department of Cardiology Xinhua Hospi

It's a challenge for detecting the therapeutic targets of a polypharmacological drug from variations in the responsed networks in thedfferentiated populations with complex diseases,as stable coronary heart ***,in an adaptive,31-center,randomized,double-blind trial invoving 920 patients with moderate symptomatic stable angina treated by 14-day Danhong injection(DHI),a kind of polyphamacological drug with high quality control,or placebo(0.9%saline),with 76-day following-up,we firstly confrmed that DHl couldincrease the proportion of patients with clinically significant changes on angina-frequency assessed by Seattle Angina Questionnaire(ASAQ-AF220)(12.78%at Day 30,95%confidence interval[C]5.86-19.71%,P=0.0003,13.82%at Day 6C0,95%CI 6.82-20.82%,P=0.0001and 8.95%at Day 90,95%CI 2.06-15.85%,P=0.01).We also found that there were no significant differences in new-onset major vascularevents(P=0.8502)and serious adverse events(P=0.9105)between DHl and *** performing the RNA sequencing in 62 selectedpatients,we developed a systemic modular approach tp identfy differentilly expressed modules(DEMs)of DHI with the Z_(summay)valueless than 0 compared with the control group,calculated by weighted gene co-expression network analysis(WGCNA),and sketched out thebasic framework on a modular map with 25 functional modules targeted by ***,the effective therapeutic module(ETM),defined as the highest corelation value with the phenotype alteration(SAQ-AF,the change in SAQ-AF at Day 30 from baseline)calculatedby WGCNA,was identifed in the population with the best effect(ASAQ-AF240),which is related to anticoagulation and regulation ofcholesterol *** assessed the modular flexbility of this ETM using the global topological D value based on Euclidean distance,which is corelated with phenotype alteration(r^(2):0.8204,P=0.019)by linear *** study identified the ant-angina therapeuticmodule in the effective population treated by the multi-target

关键词： angina injection sketch

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

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

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

Analysis of In-hospital Neonatal Death in the Tertiary Neonatal Intensive Care Unit in China： A Multicenter Retrospective Study

在线全文

学校读者我要写书评

暂无评论

Chinese Medical Journal 2016年第22期129卷 2652-2658页

作者： chen-Hong Wang Li-Zhong Du Xiao-Lu Ma Li-ping shi Xiao-Mei Tong Hong liu Guo-Fang ding Bin Yi Xin-Nian Pan Dan-Ni Zhong Ling liu Mei Li cui-Qing Li shi-Wen Xia Hong-Yun Wang Ling He kun Liang Xiao-Yu Zhou Shu-ping Han Qin Lyu Yin-ping Qiu Ruo-Bing Shan De-Zhi Mu Xiao-Hong liu Si-Qi zhuang Jing Guo Li liu Jia-Jun zhu Hong Xiong Department of Neonatal Intensive Care Unit Children's Hospital Zhejiang University School of Medicine Hangzhou Zhejiang 310051 China Department of Pediatrics Peking University Third Hospital Beijing 100191 China Department of Neonatology Beijing Children's Hospital Capital Medical University Beijing 100045 China Department of Pediatrics Peking Union Medical College Hospital Chinese Academy of Medical Sciences Beijing 100730 China Department of Neonatology Gansu Provincial Maternity and Children-care Hospital Lanzhou Gansu 730050 China Department of Neonatology Guangxi Maternal and Child Health Hospital Nanning Guangxi 530003 China Department of Neonatology The First Affiliated Hospital of Guangxi Medical University Nanning Guangxi 530021 China Department of Neonatology Guiyang Maternal and Child Health Care Hospital Guiyang Guizhou 550003 China Department of Neonatology Harbin Children's Hospital Harbin Heilongjiang 150010 China Department of Neonatology Children's Hospital of Hebei Province Shijiazhuang Hebei 050031 China Department of Neonatology Hubei Maternity and Child Heath Hospital Wuhan Hubei 430070 China Department of Neonatal Intensive Care Unit Inner Mongolia Maternal and Child Health Hospital Huhhot Inner Mongolia 010030 China Department of Neonatology Jiangxi Provincial Children's Hospital Nanchang Jiangxi 330006 China Department of Pediatric First Affiliated Hospital of Kunming Medical University Kunming Yunnan 650032 China Department of Neonatology Nanjing Children's Hospital of Nanjing Medical University Nanjing Jiangsu 320100 China Department of Neonatology Nanjing Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University Nanjing Jiangsu 210004 China DeDartment of Neonatal Intensive Care Unit Ningbo Women and Children's Hospital Ningbo Zhejiang 315012 China Department of Neonatology General Hospital of Ningxia Medical University Yinchuan Ningxia 750004 China Department of Neonatology Qingdao Women and

Background：Globally,the proportion of child deaths that occur in the neonatal period remains a high level of 37-41%.Differences of cause in neonate death exist in different regions as well as in different economic development *** specific aim of this study was to investigate the causes,characteristics,and differences of death in neonates during hospitalization in the tertiary Neonatal Intensive Care Unit （NICU） of ***：All the dead neonates admitted to 26 NICUs were included between January 1,2011,and December 31,*** the data were collected retrospectively from clinical records by a designed *** collected from each NICU were delivered to the leading institution where the results were ***：A total of 744 newborns died during the l-year survey,accounting for 1.2% of all the neonates admitted to 26 NICUs and 37.6% of all the deaths in children under 5 years of age in these *** neonate death accounted for 59.3% of all the *** leading causes of death in preterm and term infants were pulmonary disease and infection,*** early neonate period,pulmonary diseases （56.5%） occupied the largest proportion ofpreterm deaths while infection （27%） and neurologic diseases （22%） were the two main causes of term *** late neonate period,infection was the leading cause of both preterm and term neonate *** two-thirds of neonate death occurred after medical care *** the cases who might survive if receiving continuing treatment,parents＇ concern about the long-term outcomes was the main reason of medical care ***：Neonate death still accounts for a high proportion of all the deaths in children under 5 years of *** study showed the majority of neonate death occurred in preterm *** of death varied with the age of death and gestational *** and prompt evaluation of the long-term outcomes should be carried out to guide the critical decision.

关键词： Cause-of-death Mortality Newbom Retrospective Survey

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

在线全文

学校读者我要写书评

暂无评论

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 20 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 235U and 238U 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 1–20 MeV. It is determined that the results for the neutron total cross section of carbon obtained using ^235U cells are in good agreement with the results obtained using 238U 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

Proportion of Uterine Malignant Tumors in Patients with Laparoscopic Myomectomy： A National Multicenter Study in China

在线全文

学校读者我要写书评

暂无评论

Chinese Medical Journal 2017年第22期130卷 2661-2665页

作者： Hua Yang Xiao-Chuan Li chen Yao Jing-He Lang Hang-Mei Jin Ming-Rong Xi Gang Wang Lu-Wen Wang Min Hao Yan ding jie chen Jian-Qing Zhang Lu Han cheng-Xiu Guo Xiang Xue Yan Li Jian-Hua Zheng Man-Hua cui Huai-Fang Li guang-shi Tao Long chen Su-Min Wang An-Wei LU Ze-Hua Huang Qing liu Ya-Li zhuang Xiang-Hua Huang Gen-Hai zhu Ou-ping Huang Li-Na Hu Mu-Jun Li Hong-Lin Zhou Jing-Hui Song Lan zhu Department of Obstetrics and Gynecology Peking Union Medical College Hospital Beijing 100730 China Department of Biostatistics Peking University Clinical Research Institute Peking University First Hospital Beijing 100871 China Department of Obstetrics and Gynecology Zhejiang University Affiliated Obstetrics and Gynecology Hospital Zhejiang Hangzhou 310006 China Department of Obstetrics and Gynecology West China Second Hospital of Sichuan University Cbengdu Sichuan 610041 China Department of Obstetrics and Gynecology The First People's Hospital of Foshan City Foshan Guangdong 528010 China Department of Obstetrics and Gynecology Maternal and Child Health Hospital of Henan Province Zhengzhou Henan 450052 China Department of Obstetrics and Gynecology The Second Hospital of Shanxi Medical University Datong Shanxi 030001 China Department of Obstetrics and Gynecology The First Affiliated Hospital of Xinjiang Medical University Urumchi Xinjiang 830000 China Department of Obstetrics and Gynecology People's Hospital of Fujian Province Fuzhou Fujian 350000 China Department of Obstetrics and Gynecology Qinghai Red Cross Hospital Xining Qinghai 810000 China Department of Obstetrics and Gynecology Dalian Maternity Hospital Dalian Liaoning 116021 China Department of Obstetrics and Gynecology Tianjin Central Maternity Hospital Tianjin 300100 China Department of Obstetrics and Gynecology The Second Affiliated Hospital of Xi'an Jiaotong University Xi'an Shaanxi 710061 China Department of Obstetrics and Gynecology General Hospital of Ningxia Medical University Yinchuan Ningxia Hui Autonomous Region 750003 China Department of Obstetrics and Gynecology The First Affiliated Hospital of Harbin Medical University Harbin Heilongjiang 150007 China Department of Obstetrics and Gynecology The Second Hospital of Jilin University Changchun Jilin 130041 China Department of Obstetrics and Gynecology Shanghai Tongji Hospital Shanghai 200065 China Department of Obstetrics and Gynec

Background： The Food and Drug Administration recently announced that the use of morcellation may cause fibroids or pelvic dissemination and metastasis of uterine sarcoma; therefore, the use of morcellation is limited in the USA. A large sample study is necessary to assess the proportion of uterine malignant tumors found in patients with laparoscopic myomectomy. Methods： A national multicenter study was performed in China. From 2002 to 2014, 33,723 cases were retrospectively selected. We calculated the prevalence and recorded the clinical characteristics of the patients with malignancy after morcellation application. A total of 62 cases were finally pathologically confirmed as malignant postoperatively. Additionally, the medical records of the 62 patients were analyzed in details. Results： The proportion of postoperative malignancy after morcellation application was 0.18% （62/33,723） for patients who underwent laparoscopic myomectomy. Nearly 62.9% （39/62） of patients had demonstrated blood flow signals in the uterine fibroids before surgery. And, 23 （37.1%） patients showed rapid growth at the final preoperative ultrasound. With respect to the pathological types, 38 （61.3%） patients had detectable endometrial stromal sarcoma, 13 （21.0%） had detectable uterine leiomyosarcoma, only 3 （3.2%） had detectable carcinosarcoma, and 5 （8.1%） patients with leiomyoma had an undetermined malignant potential. Conclusions： The proportion of malignancy is low after using moreellation in patients who undergo laparoscopie myomectomy. Patients with fast-growing uterine fibroids and abnormal ultrasonic tumor blood flow should be considered for malignant potential, and morcellation should be avoided.

关键词： Laparoscopic Myomectomy Morcellation Sarcoma