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Significant loss of soil inorganic carbon at the continental scale

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National Science Review 2022年第2期9卷 13-20页

作者： xiao-Dong Song Fei Yang Hua-Yong Wu Jing zhang de-cheng Li Feng Liu Yu-guo Zhao Jin-Ling Yang Bing Ju Chong-Fa Cai Biao Huang Huai-Yu Long Ying Lu Yue-Yu Sui Qiu-Bing wang Ke-Ning Wu Feng-Rong zhang Ming-Kui zhang Zhou Shi Wan-Zhu Ma Gang Xin Zhi-ping Qi Qing-Rui Chang En Ci Da-Gang Yuan Yang-Zhu zhang Jun-ping Bai Jia-Ying chen Jie chen Yin-Jun chen Yun-zhong Dong Chun-Lan han Ling Li Li-Ming Liu Jian-Jun Pan Fu-Peng Song Fu-Jun Sun deng-Feng wang Tian-wei wang xiang-Hua wei hong-Qi Wu xia Zhao Qing Zhou Gan-Lin zhang State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil Science Chinese Academy of Sciences College of Advanced Agricultural Sciences University of Chinese Academy of Sciences College of Resources and Environment Huazhong Agricultural University Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences College of Natural Resources and Environment South China Agricultural University Northeast Institute of Geography and Agroecology Chinese Academy of Sciences College of Land and Environment Shenyang Agricultural University School of Land Science and Technology China University of Geosciences College of Land Science and Technology China Agricultural University College of Environmental and Resource Sciences Zhejiang University Institute of Digital Agriculture Zhejiang Academy of Agricultural Sciences College of Agriculture Heilongjiang Bayi Agricultural University Tropical Crops Genetic Resources Institute Chinese Academy of Tropical Agricultural Sciences College of Natural Resources and Environment Northwest A & F University College of Resources and Environment Southwest University College of Resources Sichuan Agricultural University College of Resources and Environment Hunan Agricultural University Institute of Agricultural Product Quality Standard and Testing Research Tibet Academy of Agricultural and Animal Husbandry Sciences School of Agricultural Sciences Zhengzhou University Institute of Agriculture Environment and Resources Research Shanxi Academy of Agricultural Sciences College of Resources and Environment Henan Agricultural University College of Resources and Environment China Agricultural University College of Resources and Environmental Sciences Nanjing Agricultural University College of Resources and Environment Shandong Agricultural University Agricultural College Guangxi University College of Grassland and Environment Science Xinjiang Agricultural University College of Geographical Science Qinghai Normal University

Widespread soil acidification due to atmospheric acid deposition and agricultural fertilization may greatly accelerate soil carbonate dissolution and ***,to date,few studies have addressed these ***,we use meta-analysis and nationwide-survey datasets to investigate changes in soil inorganic carbon(SIC) stocks in *** observe an overall decrease in SIC stocks in topsoil(0-30 cm)(11.33 g C m-2yr-1) from the 1980 s to the 2010 *** SIC stocks have decreased by～8.99±2.24%(1.37±0.37 Pg C).The average SIC losses across China(0.046 Pg C yr-1) and in cropland(0.016 Pg C yr-1) account for～17.6%-24.0% of the terrestrial C sink and 57.1% of the soil organic carbon sink in cropland,*** deposition and climate change have profound influences on SIC *** estimate that～19.12%-19.47% of SIC stocks will be further lost by *** consumption of SIC may offset a large portion of global efforts aimed at ecosystem carbon sequestration,which emphasizes the importance of achieving a better understanding of the indirect coupling mechanisms of nitrogen and carbon cycling and of effective countermeasures to minimize SIC loss.

关键词： China soil inorganic carbon stocks global change carbonate soil acidification

10B-doped MCP detector developed for neutron resonance imaging at Back-n white neutron source

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Nuclear Science and Techniques 2024年第8期35卷 58-68页

作者： Qiang Li Li‑Jiao wang Jing‑Yu Tang xiang‑Biao Qiu Zhen chen Mao‑Yuan Zhao Chang‑Jun Ning Kai Pan wei Xu Tao Li Su‑Peng Lu han Yi Rui‑Rui Fan Chang‑Qing Feng Rong zhang xiao‑Yang Sun Qi An Hao‑Fan Bai Jiang‑Bo Bai Jie Bao ping Cao Qi‑ping chen Yong‑Hao chen Zeng‑Qi Cui An‑Chuan Fan Fan‑Zhen Feng Min‑Hao gu Chang‑Cai han Zi‑Jie han guo‑Zhu He Yong‑cheng He Yang hong Yi‑wei Hu han‑Xiong Huang wei Jiang Zhi‑Jie Jiang Zheng‑Yao Jin Ling Kang Bo Li Gong Li xiao Li Yang Li Jie Liu Rong Liu Shu‑Bin Liu Yi‑Na Liu guang‑Yuan Luan Jie Ren Zhi‑Zhou Ren Xi‑Chao Ruan Zhao‑Hui Song Kang Sun Zhi‑Xin Tan Sheng‑Da Tang Jin‑cheng wang Peng‑cheng wang Zhao‑Hui wang zhong‑wei Wen xiao‑guang Wu Xuan Wu Cong xia Yong‑Ji Yu guo‑Hui zhang hang‑Chang zhang Lin‑Hao zhang Qi‑wei zhang xian‑Peng zhang Yu‑Liang zhang Yue zhang Zhi‑Yong zhang Zhi‑Hao Zhou Ke‑Jun Zhu Chong Zou 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 Physics Chinese Academy of SciencesBeijing 100049China Dongguan Songshan Lake Future School Dongguan 523808China 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 North Night Vision Science and Technology(Nanjing)Research Institute Co.Ltd Nanjing 211106China 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 Modern Physics Fudan UniversityShanghai 200433China Key Laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China China Academy of Engineering Physics Institute of Nuclear Physics and ChemistryMianyang 621900China 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 China Shipbuilding Trading Co. LtdBeijing 100044China

Neutron resonance imaging(NRI)has recently emerged as an appealing technique for neutron *** complexity surpasses that of conventional transmission imaging,as it requires a high demand for both a neutron source and ***,the progression of NRI technology has been sluggish since its inception in the 1980s,particularly considering the limited studies analyzing the neutron energy range above *** white neutron source(Back-n)at the China Spallation Neutron Source(CSNS)provides favorable beam conditions for the development of the NRI technique over a wide neutron energy range from eV to ***-sensitive microchannel plates(MCP)have emerged as a cutting-edge tool in the field of neutron detection owing to their high temporal and spatial resolutions,high detection efficiency,and low *** this study,we report the development of a 10B-doped MCP detector,along with its associated electronics,data processing system,and NRI experiments at the *** heavy elements such as gold,silver,tungsten,and indium can be easily identified in the transmission images by their characteristic resonance peaks in the 1–100 eV energy range;the more difficult medium-weight elements such as iron,copper,and aluminum with resonance peaks in the 1–100 keV energy range can also be *** particular,results in the neutron energy range of dozens of keV(Aluminum)are reported here for the first time.

关键词： Neutron resonance imaging 10B doped MCP detector White neutron source Sample nuclide identification

AIWW:a new nutrition-screening tool for the oncologic population

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Science China(Life Sciences) 2023年第8期66卷 1831-1840页

作者： Yi-zhong Ge Zhen-Ming Fu Qi zhang Meng-Meng Song guo-Tian Ruan Xi zhang xiao-wei zhang xiang-Rui Li Kang-ping zhang Meng Tang xiao-Yue Liu Ming Yang Tong Liu Hai-Lun Xie He-Yang zhang Zi-Wen wang Chun-Lei Hu Shi-Qi Lin Rui zhang hong-xia Xu wei Li Chun-Hua Song Ming Liu Jun-Qiang chen Kun-Hua wang Li Bo Ming-Hua Cong Zeng-Ning Li Zeng-Qin guo xiao-Bin wang Bin-Yan wang Benjamin Xu xian-Hui Qin Xi-ping Xu Rocco Barazzoni Qing-Hua Yao Min Weng xian Shen han-ping Shi The Investigation on Nutrition Status and Clinical Outcome of Common Cancers(INSCOC)Group department of Gastrointestinal Surgery/department of Clinical Nutrition Beijing Shijitan HospitalCapital Medical UniversityBeijing 100038China The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University Wenzhou 325000China National Clinical Research Center for Geriatric Diseases Xuanwu HospitalCapital Medical UniversityBeijing 100053China Beijing International Science and Technology Cooperation Base for Cancer Metabolism and Nutrition Beijing 100038China Key Laboratory of Cancer FSMP for State Market Regulation Beijing 100038China Cancer Center Renmin Hospital of Wuhan UniversityWuhan 430060China department of Colorectal Surgery Cancer Hospital of University of Chinese Academy of SciencesZhejiang Cancer HospitalHangzhou 310022China department of Clinical Nutrition Daping HospitalArmy Medical University(Third Military Medical University)Chongqing 400042China Cancer Center of the First Hospital of Jilin University Changchun 130021China department of Epidemiology College of Public HealthZhengzhou UniversityZhengzhou450001China department of Colorectal Surgery the Second Affiliated Hospital of Harbin Medical UniversityHarbin 150081China department of Gastrointestinal Surgery First Affiliated Hospital of Guangxi Medical UniversityNanning 530021China Yunnan University Kunming 650091China General Surgery Clinical Medical Center of Yunnan Province Kunming 650032China Affiliated Hospital of Yunnan University Kunming 650091China Comprehensive Oncology department Cancer HospitalChinese Academy of Medical SciencesBeijing 100021China department of Clinical Nutrition The First Hospital of Hebei Medical UniversityShijiazhuang 050031China department of Medical Oncology Fujian Cancer HospitalFujian Medical University Cancer HospitalFuzhou 350014China department of Population Family and Reproductive HealthJohns Hopkins University Bloomberg School of Public HealthBaltimore MD 21228USA Shenzhen Evergreen Medical Institute Shenzhen 518052China department of Epid

Malnutrition is a common comorbidity among patients with ***,no nutrition-screening tool has been recognized in this population.A quick and easy screening tool for nutrition with high sensitivity and easy-to-use is *** on the previous 25 nutrition-screening tools,the delphi method was made by the members of the Chinese Society of Nutritional Oncology to choose the most useful item from each *** to these results,we built a nutrition-screening tool named age,intake,weight,and walking(AIWW).Malnutrition was defined based on the scored patient-generated subjective global assessment(PG-SGA).Concurrent validity was evaluated using the Kendall tau coefficient and kappa consistency between the malnutrition risks of AIWW,nutritional risk screening 2002(NRS-2002),and malnutrition screening tool(MST).Clinical benefit was calculated by the decision curve analysis(DCA),integrated discrimination improvement(IDI),and continuous net reclassification improvement(c NRI).A total of 11,360 patients(male,n=6,024(53.0%)were included in the final study cohort,and 6,363 patients had malnutrition based on *** on AIWW,NRS-2002,and MST,7,545,3,469,and1,840 patients were at risk of malnutrition,*** sensitivities of AIWW,NRS-2002,and MST risks were 0.910,0.531,and 0.285,and the specificities were 0.768,0.946,and *** Kendall tau coefficients of AIWW,NRS-2002,and MST risks were 0.588,0.501,and 0.326,*** area under the curve of AIWW,NRS-2002,and MST risks were0.785,0.739,and 0.630,*** IDI,c NRI,and DCA showed that AIWW is non-inferior to NRS-2002(IDI:0.002(-0.009,0.013),c NRI:-0.015(-0.049,0.020)).AIWW scores can also predict the survival of patients with *** missed diagnosis rates of AIWW,NRS-2002,and MST were 0.09%,49.0%,and 73.2%,*** showed a better nutritionscreening effect than NRS-2002 and MST for patients with cancer and could be recommended as an alternative nutritionscreening tool

关键词： nutrition-screening AIWW NRS-2002 MST cancer

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

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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

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

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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

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

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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

A combined pre- and intra-operative nomogram in evaluation of degrees of liver cirrhosis predicts post-hepatectomy liver failure: a multicenter prospective study

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Hepatobiliary Surgery and Nutrition 2024年第2期13卷 198-213,I0001-I0003页

作者： Bin-Yong Liang Er-Lei zhang Jian Li Xin Long Wen-Qiang wang Bi-xiang zhang Zhi-wei zhang Yi-Fa chen Wan-guang zhang Bin Mei Zhen-Yu xiao Jin gu Zun-Yi zhang Shuai xiang han-Hua Dong Lei zhang Peng Zhu Qi cheng Lin chen Zhan-guo zhang Bin-Hao zhang wei Dong xiao-Feng Liao Tao Yin Dong-de Wu Bin Jiang Yu-Feng Yuan zhong-Lin zhang Yao-Bing chen Kai-Yan Li Wan Yee Lau xiao-ping chen Zhi-Yong Huang Hepatic Surgery Center Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina department of General Surgery Xiangyang Central HospitalAffiliated Hospital of Hubei University of Arts and ScienceXiangyangChina department of Hepato-biliary Surgery Hubei Cancer HospitalWuhanChina department of Hepato-pancreato-biliary Surgery Treatment Center Taihe HospitalHubei University of MedicineShiyanChina department of Hepato-biliary Surgery Zhongnan Hospital of Wuhan UniversityWuhanChina Institute of Pathology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina department of Ultrasound Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina Faculty of Medicine The Chinese University of Hong KongPrince of Wales HospitalShatinN.T.Hong Kong SARChina

Background:Adequate evaluation of degrees of liver cirrhosis is essential in surgical treatment of hepatocellular carcinoma(HCC)*** impact of the degrees of cirrhosis on prediction of post-hepatectomy liver failure(PHLF)remains poorly *** study aimed to construct and validate a combined pre-and intra-operative nomogram based on the degrees of cirrhosis in predicting PHLF in HCC patients using prospective multi-center’s ***:Consecutive HCC patients who underwent hepatectomy between May 18,2019 and dec 19,2020 were enrolled at five tertiary *** cirrhotic severity scoring(CSS)and intra-operative direct liver stiffness measurement(DSM)were performed to correlate with the Laennec histopathological grading *** performances of the pre-operative nomogram and combined pre-and intra-operative nomogram in predicting PHLF were compared with conventional predictive models of ***:For 327 patients in this study,histopathological studies showed the rates of HCC patients with no,mild,moderate,and severe cirrhosis were 41.9%,29.1%,22.9%,and 6.1%,*** CSS or DSM was closely correlated with histopathological stages of ***-three(10.1%)patients developed *** 30-and 90-day mortality rates were 0.9%.Multivariate regression analysis showed four pre-operative variables[HBV-DNA level,ICG-R15,prothrombin time(PT),and CSS],and one intra-operative variable(DSM)to be independent risk factors of *** pre-operative nomogram was constructed based on these four pre-operative variables together with total *** combined pre-and intra-operative nomogram was constructed by adding the intra-operative *** pre-operative nomogram was better than the conventional models in predicting *** prediction was further improved with the combined pre-and intra-operative ***:The combined pre-and intra-operative nomogram further improved prediction of PHLF when compared with the pre-operat

关键词： Cirrhosis post-hepatectomy liver failure(PHLF) hepatectomy nomogram hepatocellular carcinoma(HCC)

In-beam gamma rays of CSNS Back-n characterized by black resonance filter

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Nuclear Science and Techniques 2024年第10期35卷 149-160页

作者： Jin-cheng wang Jie Ren wei Jiang Xi-Chao Ruan Ying-Yi Liu Hao-Lan Yang Kuo-Zhi Xu Xin-Yi Pan Qi Sun Jie Bao han-Xiong Huang Hao-Fan Bai Jiang-Bo Bai ping Cao Qi-ping chen Yong-Hao chen Wen-Hao Duan An-Chuan Fan Rui-Rui Fan Chang-Qing Feng Min-Hao gu Chang-Cai han Zi-Jie han guo-Zhu He Yong-cheng He Yang hong Yi-wei Hu Zhi-Jie Jiang Ling Kang Chang-Lin Lan Bo Li Feng Li Qiang Li xiao Li Yang Li Jie Liu Rong Liu Shu-Bin Liu Yi-Na Liu guang-Yuan Luan Chang-Jun Ning Yi-Jia Qiu Wen-Kai Ren Zhi-Zhou Ren Zhao-Hui Song Kang Sun Zhi-Xin Tan Jing-Yu Tang Sheng-Da Tang Li-Jiao wang Peng-cheng wang Zhao-Hui wang zhong-wei Wen xiao-guang Wu Xuan Wu Ze-Peng Wu Cong xia Li-Kun Xie han Yi Tao Yu Yong-Ji Yu guo-Hui zhang hang-Chang zhang Qi-wei zhang xian-Peng zhang Yu-Liang zhang Zhi-Yong zhang Mao-Yuan Zhao Zhi-Hao Zhou Ke-Jun Zhu Chong Zou Key Laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China Institute of High Energy Physics Chinese Academy of Sciences(CAS)Beijing 100049China Spallation Neutron Source Science Center Dongguan 523803China State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871China Institute of Modern Physics Fudan UniversityShanghai 200433China State Key Laboratory of Particle detection and Electronics University of Science and Technology of ChinaHefei 230026China School of Nuclear Science and Technology 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 USTC Archaeometry Lab University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Particle detection and Electronics Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Northwest Institute of Nuclear Technology Xi’an 710024China University of Chinese Academy of Sciences Beijing 100049China School of Nuclear Science and Technology Lanzhou UniversityLanzhou 730000China Institute of Advanced Technology University of Science and Technology of ChinaHefei 230027China

The back-streaming white-neutron beamline(Back-n)of the China Spallation Neutron Source is an essential neutronresearch platform built for the study of nuclear data,neutron physics,and neutron *** types of cross-sectional neutron-reaction measurements have been performed at Back-n since early *** measurements have shown that a significant number of gamma rays can be transmitted to the experimental stations of Back-n along with the neutron *** gamma rays,commonly referred to as in-beam gamma rays,can induce a non-negligible experimental background in neutron-reaction *** the characteristics of in-beam gamma rays is important for understanding the experimental ***,measuring in-beam gamma rays is challenging because most gamma-ray detectors are sensitive to neutrons;thus,discriminating between neutron-induced signals and those from in-beam gamma rays is *** this study,we propose the use of the black resonance filter method and a CeBr_(3) scintillation detector to measure the characteristics of the in-beam gamma rays of *** types of black resonance filters,^(181)Ta,^(59)Co,^(nat)Ag,and^(nat)Cd,were used in this *** time-of-flight(TOF)technique was used to select the detector signals remaining in the absorption region of the TOF spectra,which were mainly induced by in-beam gamma *** energy distribution and flux of the in-beam gamma rays of Back-n were determined by analyzing the deposited energy spectra of the CeBr_(3) scintillation detector and using Monte Carlo *** on the results of this study,the background contributions from in-beam gamma rays in neutron-reaction measurements at Back-n can be reasonably evaluated,which is beneficial for enhancing both the experimental methodology and data analysis.

关键词： In-beam gamma rays Back-n CeBr_(3)scintillator Black filter resonance technique

Back-n white neutron source at CSNS and its applications

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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