检索结果-南通市图书馆

Effect of crystal morphology of ultrahigh-nickel cathode materials on high temperature electrochemical stability of lithium ion batteries

引用

Journal of Energy Chemistry 2024年第1期88卷 327-335,I0008页

作者： Bi Luo hui li Haoyu Qi yun liu Chuanbo zheng Weitong Du Jiafeng zhang Lai chen School of Metallurgy Engineering Jiangsu University of Science and TechnologyZhangjiagang 215600JiangsuChina National Engineering Laboratory for High-Efficiency Recovery of Refractory Nonferrous Metals School of Metallurgy and EnvironmentCentral South UniversityChangsha 410083HunanChina School of Materials Science and Engineering Beijing Key Laboratory of Environmental Science and EngineeringBeijing Institute of TechnologyBeijing 100081China

Higher nickel content endows Ni-rich cathode materials liNi_(x)Co_yMn_(1-x-y)O_(2)(x>0.6)with higher specific capacity and high energy density,which is regarded as the most promising cathode materials for li-ion batteries.However,the deterioration of structural stability hinders its practical application,especially under harsh working conditions such as high-temperature cycling.Given these circumstances,it becomes particularly critical to clarify the impact of the crystal morphology on the structure and high-temperature performance as for the ultrahigh-nickel cathodes.Herein,we conducted a comprehensive comparison in terms of microstructure,high-temperature long-cycle phase evolution,and high-temperature electrochemical stability,revealing the differences and the working mechanisms among polycrystalline(PC),single-crystalline(SC)and Al doped SC ultrahigh-nickel materials.The results show that the PC sample suffers a severe irreversible phase transition along with the appearance of microcracks,resulting a serious decay of both average voltage and the energy density.While the Al doped SC sample exhibits superior cycling stability with intact layered structure.In-situ XRD and intraparticle structural evolution characterization reveal that Al doping can significantly alleviate the irreversible phase transition,thus inhibiting microcracks generation and enabling enhanced structure.Specifically,it exhibits excellent cycling performance in pouch-type full-cell with a high capacity retention of 91.8%after 500 cycles at 55℃.This work promotes the fundamental understanding on the correlation between the crystalline morphology and high-temperature electrochemical stability and provides a guide for optimization the Ni-rich cathode materials.

关键词： Single-crystalline Ultrahigh-nickel cathode High-temperature performance Phase evolution

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

Clinical manifestation,lifestyle,and treatment patterns of chronic erosive gastritis:A multicenter real-world study in China

引用

World Journal of Gastroenterology 2024年第9期30卷 1108-1120页

作者： Ying-yun Yang Ke-Min li Gui-Fang Xu Cheng-Dang Wang Hua Xiong Xiao-Zhong Wang Chun-hui Wang bing-Yong zhang Hai-xing Jiang Jing Sun Yan Xu li-Juan zhang Hao-Xuan zheng Xiang-Bin xing liang-Jing Wang Xiu-li Zuo Shi-Gang Ding Rong lin Chun-Xiao chen xing-Wei Wang Jing-Nan li Department of Gastroenterology Peking Union Medical College HospitalPeking Union Medical CollegeChinese Academy of Medical SciencesBeijing 100730China Department of Gastroenterology Nanjing Drum Tower HospitalNanjing 21000Jiangsu ProvinceChina Department of Gastroenterology The First Affiliated Hospital of Fujian Medical UniversityFuzhou 350005Fujian ProvinceChina Department of Gastroenterology Renji HospitalShanghai 200127China Department of Gastroenterology Union Hospital of Fujian Medical UniversityFuzhou 350000Fujian ProvinceChina Department of Gastroenterology West China Hospital of Sichuan UniversityChengdu 610041Sichuan ProvinceChina Department of Gastroenterology and Hepatology The People’s Hospital of Zhengzhou UniversityThe Henan Provincial People’s HospitalZhengzhou 450003Henan ProvinceChina Department of Gastroenterology The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021Guangxi Zhuang Autonomous RegionChina Ruijin Hospital Shanghai Jiaotong University School of Medicine Shanghai Jiao Tong UnivesrityRuijin HospitalSchool MedicineShanghai 200025China Department of Gastroenterology and Hepatology China-Japan Union Hospital of Jilin UniversityChangchun 130033Jilin ProvinceChina Department of Gastroenterology Fujian Medical University Union HospitalFuzhou 350001Fujian ProvinceChina Department of Gastroenterology Nanfang HospitalGuangzhou 510080Guangdong ProvinceChina Department of Gastroenterology The First Affiliated HospitalSun Yat-sen UniversityGuangzhou 510080Guangdong ProvinceChina Department of Gastroenterology The Second Affiliated Hospital Zhejiang University School of MedicineHangzhou 310000Zhejiang ProvinceChina Department of Gastroenterology Shandong University Qilu HospitalJinan 250012Shandong ProvinceChina Department of Gastroenterology Peking University Third HospitalBeijing 100191China Department of Gastroenterology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022Hubei Pr

BACKGROUND Although chronic erosive gastritis(CEG)is common,its clinical characteristics have not been fully elucidated.The lack of consensus regarding its treatment has resulted in varied treatment regimens.AIM To explore the clinical characteristics,treatment patterns,and short-term outcomes in CEG patients in China.METHODS We recruited patients with chronic non-atrophic or mild-to-moderate atrophic gastritis with erosion based on endoscopy and pathology.Patients and treating physicians completed a questionnaire regarding history,endoscopic findings,and treatment plans as well as a follow-up questionnaire to investigate changes in symptoms after 4 wk of treatment.RESULTS Three thousand five hundred sixty-three patients from 42 centers across 24 cities in China were included.Epigastric pain(68.0%),abdominal distension(62.6%),and postprandial fullness(47.5%)were the most common presenting symptoms.Gastritis was classified as chronic non-atrophic in 69.9%of patients.Among those with erosive lesions,72.1%of patients had lesions in the antrum,51.0%had multiple lesions,and 67.3%had superficial flat lesions.In patients with epigastric pain,the combination of a mucosal protective agent(MPA)and proton pump inhibitor was more effective.For those with postprandial fullness,acid regurgitation,early satiety,or nausea,a MPA appeared more promising.CONCLUSION CEG is a multifactorial disease which is common in Asian patients and has non-specific symptoms.Gastroscopy may play a major role in its detection and diagnosis.Treatment should be individualized based on symptom profile.

关键词： Chronic erosive gastritis Symptom Endoscopic findings Treatment pattern Real-world

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

Effectiveness and safety of early lens extraction during par plana vitrectomy for proliferative diabetes retinopathy with mild cataract:a randomized clinical trial

引用

International Journal of Ophthalmology(English edition) 2024年第3期17卷 528-536页

作者： Wei-Bo Feng Lei zheng Ying-Qi li Yong-Hao li Guo-Ming zhang Xian Wang bing-Qian liu ling Jin Yi-Nuo Huang Yang-Fan Yang Zi-Dong chen Da-hui Ma Qing-Shan chen Chao-Jun Qin bing-Min Feng Zhu-Min Yang xing Huang Cheng-Jie Yang Sheng-hui liu Ming-xing Wu State Key Laboratory of Ophthalmology Guangdong Provincial Key Laboratory of Ophthalmology and Visual ScienceGuangdong Provincial Clinical Research Center for Ocular DiseasesZhongshan Ophthalmic CenterSun Yat-sen UniversityGuangzhou 510275Guangdong ProvinceChina Shenzhen Eye Hospital Affiliated to Jinan University Shenzhen 518040Guangdong ProvinceChina The Affiliated Hospital of Guizhou Medical University Guiyang 550004Guizhou ProvinceChina Guangzhou Aier Eye Hospital Guangzhou 510000Guangdong ProvinceChina

●AIM:To evaluate the effectiveness and safety of early lens extraction during pars plana vitrectomy(PPV)for proliferative diabetic retinopathy(PDR)compared to those of PPV with subsequent cataract surgery.●METHODS:This multicenter randomized controlled trial was conducted in three Chinese hospitals on patients with PDR,aged>45y,with mild cataracts.The participants were randomly assigned to the combined(PPV combined with simultaneously cataract surgery,i.e.,phacovitrectomy)or subsequent(PPV with subsequent cataract surgery 6mo later)group and followed up for 12mo.The primary outcome was the change in best-corrected visual acuity(BCVA)from baseline to 6mo,and the secondary outcomes included complication rates and medical expenses.●RESULTS:In total,129 patients with PDR were recruited and equally randomized(66 and 63 in the combined and subsequent groups respectively).The change in BCVA in the combined group[mean,36.90 letters;95%confidence interval(CI),30.35–43.45]was significantly better(adjusted difference,16.43;95%CI,8.77–24.08;P<0.001)than in the subsequent group(mean,22.40 letters;95%CI,15.55–29.24)6mo after the PPV,with no significant difference between the two groups at 12mo.The overall surgical risk of two sequential surgeries was significantly higher than that of the combined surgery for neovascular glaucoma(17.65%vs 3.77%,P=0.005).No significant differences were found in the photocoagulation spots,surgical time,and economic expenses between two groups.In the subsequent group,the duration of work incapacity(22.54±9.11d)was significantly longer(P<0.001)than that of the combined group(12.44±6.48d).●CONCLUSION:PDR patients aged over 45y with mild cataract can also benefit from early lens extraction during PPV with gratifying effectiveness,safety and convenience,compared to sequential surgeries.

关键词： lens extraction pars plana vitrectomy proliferative diabetic retinopathy cataract simultaneously operations

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

Phthalate Exposure and Human Semen Quality in Shanghai:A Cross-sectional Study

引用

Biomedical and Environmental Sciences 2006年第3期19卷 205-209页

作者： yun-hui zhang li-xing zheng bing-heng chen Department of Environmental Health School of Public Health Fudan University Shanghai 200032 China

Objective To monitor the level of phthalates in human semen samples and to analyze the relationship between phthalate levels and semen parameters. Methods Concentrations of three kinds of commonly used phthalates （di-ethyl phthalate, DEP; di-n-butyl phthalate, DBP; di-2-ethylhexyl phthalate, DEHP） were measured using reversed-phase HPLC. Semen parameters were measured by computer aided sperm analysis （CASA）. Results The three phthalates were detected in most of the biological samples, with median levels of 0.30 mg/L （0.08-1.32 mg/L） in semen specimens. There was a significant positive association between liquefied time of semen and phthalate concentrations of semen. The correlation coefficient was 0.456 for DEP, 0.475 for DBP, and 0.457 for DEHP, respectively. There was no significant difference between phthalate concentrations of semen and sperm density or livability, though the correlation coefficients were negative. Conclusion These results suggest that people who reside in Shanghai are exposed to phthalates, especially to DBP and DEHP. Although the level of phthalates is relatively mild, an association of phthalate levels and reduced quality of human semen has been shown in the present study.

关键词： Environmental endocrine disruptor Phthalates Reversed-phase HPLC Biological samples

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

PRaG 3.0 therapy for human epidermal growth factor receptor 2-positive metastatic pancreatic ductal adenocarcinoma:A case report

引用

World Journal of Gastroenterology 2024年第9期30卷 1237-1249页

作者： Yue-Hong Kong Mei-ling Xu Jun-Jun zhang Guang-Qiang chen Zhi-hui Hong Hong zhang Xiao-Xiao Dai Yi-Fu Ma Xiang-Rong Zhao chen-Yang zhang Rong-zheng chen Peng-Fei xing li-Yuan zhang Center for Cancer Diagnosis and Treatment The Second Affiliated Hospital of Soochow UniversitySuzhou 215000Jiangsu ProvinceChina Department of Radiotherapy&Oncology The Second Affiliated Hospital of Soochow UniversitySuzhou 215000Jiangsu ProvinceChina Institution of Radiotherapy&Oncology Soochow UniversitySuzhou 215000Jiangsu ProvinceChina Department of Radiology The Second Affiliated Hospital of Soochow UniversitySuzhou 215000Jiangsu ProvinceChina Department of Nuclear Medicine The Second Affiliated Hospital of Soochow UniversitySuzhou 215000Jiangsu ProvinceChina Department of Clinical Laboratory The Second Affiliated Hospital of Soochow UniversitySuzhou 215000Jiangsu ProvinceChina Department of Pathology The Second Affiliated Hospital of Soochow UniversitySuzhou 215000Jiangsu ProvinceChina

BACKGROUND Pancreatic ductal adenocarcinoma(PDAC)is a highly fatal disease with limited effective treatment especially after first-line chemotherapy.The human epidermal growth factor receptor 2(HER-2)immunohistochemistry(IHC)positive is associated with more aggressive clinical behavior and shorter overall survival in PDAC.CASE SUMMARY We present a case of multiple metastatic PDAC with IHC mismatch repair proficient but HER-2 IHC weakly positive at diagnosis that didn’t have tumor regression after first-line nab-paclitaxel plus gemcitabine and PD-1 inhibitor treatment.A novel combination therapy PRaG 3.0 of RC48(HER2-antibody-drug conjugate),radio-therapy,PD-1 inhibitor,granulocyte-macrophage colony-stimulating factor and interleukin-2 was then applied as second-line therapy and the patient had confirmed good partial response with progress-free-survival of 6.5 months and overall survival of 14.2 month.She had not developed any grade 2 or above treatment-related adverse events at any point.Percentage of peripheral CD8^(+) Temra and CD4^(+) Temra were increased during first two activation cycles of PRaG 3.0 treatment containing radiotherapy but deceased to the baseline during the maintenance cycles containing no radiotherapy.CONCLUSION PRaG 3.0 might be a novel strategy for HER2-positive metastatic PDAC patients who failed from previous first-line approach and even PD-1 immunotherapy but needs more data in prospective trials.

关键词： Pancreatic ductal adenocarcinoma PRaG 3.0 therapy Human epidermal growth factor receptor 2 Novel combination therapy 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

Andrographolide Attenuates Noise-Induced Hearing Loss by Ameliorating Cochlear Inflammation

引用

World Journal of Traditional Chinese Medicine 2024年第2期10卷 204-212页

作者： Meng-Hua li Wan-Qi Wang li-Ting zheng Meng-bing chen Yang Chu Miao Qiao Zuo-li zhang Konduru Naveena Yong Pan yun-Shi zhang He Sun Xiao-hui Ma Xi Shi Artificial Auditory Laboratory of Jiangsu Province Xuzhou Medical University Key Laboratory of Tropical Biological Resources of Ministry of Education School of Pharmaceutical Sciences Hainan University Department of ENT Beijing Friendship Hospital Capital Medical University National Key Laboratory of Chinese Medicine Modernization Tasly Academy Tasly Pharmaceutical Group Co. Ltd. Endoscopy Center Ankang People's Hospital Department of Respiratory Medicine Xuzhou Infectious Diseases Hospital Affiliated Hospital of Xuzhou Medical University Department of ENT The People's Hospital of Rongchang District

Objective: This study aimed to explore andrographolide's mechanism of action and its protective effect on noise-induced hearing loss(NIHL). Materials and Methods: A mice animal model for NIHL was established through exposure to broadband noise at 120 d B sound pressure level for 4 h. Transcriptomics analysis and pharmacodynamic experiments were carried out. Results: Andrographolide enters the inner ear and effectively prevents hearing damage following noise exposure in the mice model for permanent hearing loss. Moreover, treatment with andrographolide inhibited the excessive activation of inflammatory factors in the cochleae of noise-exposed mice. Conclusion: Andrographolide might be a promising candidate for auditory protective drug investigation.

关键词： Andrographolide anti‑inflammatory auditory protection noise‑induced hearing loss traditional Chinese medicine compound

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

Acute primary angle closure during the Omicron outbreak

引用

International Journal of Ophthalmology(English edition) 2024年第7期17卷 1337-1343页

作者： Dong Fang Wang-Ting li Jia liang Lu chen Ning-Xin Dou hui-Yan zheng Can-Feng Huang Ting Xie Yi-Jing Zhuang Peng-Feng li xing-xing Mao Shao-Chong zhang Shenzhen Eye Hospital Jinan UniversityShenzhen Key Laboratory of OphthalmologyShenzhen 518040Guangdong ProvinceChina

AIM:To investigate Omicron’s impact on clinical presentation of acute primary angle closure(APAC)in China.METHODS:A consecutive case series with historical controls was conducted at Shenzhen Eye Hospital,the largest specialized hospital in Shenzhen,China.Medical records from a two-month period during the Omicron pandemic(December 1,2022,to January 31,2023)were compared with records from two control groups(12/2018–1/2019 and 12/2021–1/2022)before pandemic.Patients with APAC were included,and the prevalence of APAC and demographic characteristics in Omicron-infected and noninfected patients were compared.RESULTS:Seventy-one(23.43%)out of 303 patients were diagnosed with APAC in the pandemic cohort,which was 2.98 and 2.61 times higher than that in control cohorts(7.87%in 2019,8.96%in 2022,P<0.001).The pandemic cohort has significantly higher Omicron-infected rate(78.87%vs 0 vs 0;P<0.001),lower proportion of glaucoma history(16.90%vs 42.86%vs 41.67%,P=0.005),higher surgical rate(95.77%vs 83.33%vs 78.57%,P=0.024),higher total medical costs and larger pupil diameter(5.63±0.15 vs 4.68±0.15 vs 4.69±0.22 mm,P<0.01).In 83%Omicron-infected patients,ocular symptoms appeared within 3d after systemic symptoms onset.In multivariate analysis,Omicron infection(P<0.001)was the only independent predictor of pupil diameter.CONCLUSION:In the Omicron epidemic in China,there is an increase of prevalence and severity of APAC,particularly focusing on the first 3d following infection.

关键词： Omicron acute primary angle closure ocular symptoms

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

Expert consensus on the diagnosis, treatment, and prevention of respiratory syncytial virus infections in children

引用

World Journal of Pediatrics 2024年第1期20卷 11-25页

作者： Xian-li zhang Xi zhang Wang Hua zheng-De Xie Han-Min liu Hai-lin zhang Bi-Quan chen Yuan chen Xin Sun Yi Xu Sai-Nan Shu Shun-Ying Zhao yun-Xiao Shang ling Cao Yan-hui Jia Luo-Na lin Jiong li Chuang-li Hao Xiao-Yan Dong Dao-Jiong lin Hong-Mei Xu De-Yu Zhao Mei Zeng Zhi-Min chen li-Su Huang Department of Infectious Disease Children's HospitalZhejiang University School of Medicine3333 Binsheng RoadBinjiang DistrictHangzhou 310052China Clinical Research Unit Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina Beijing Pediatric Research Institute Beijing Children's HospitalCapital Medical UniversityBeijingChina Department of Pediatric Pulmonology West China Second University HospitalSichuan UniversityChengduChina Department of Pediatric Pulmonology the Second Affiliated Hospital&Yuying Children's HospitalWenzhou Medical UniversityWenzhouChina Department of Infectious Disease Anhui Provincial Children's HospitalHefeiChina Department of Pediatrics the Second Hospital of Hebei Medical UniversityShijiazhuangChina Department of Pediatrics Xijing Hospitalthe Fourth Military Medical UniversityXi'anChina Department of Infectious Disease Guangzhou Women and Children's Medicine CenterGuangzhou Medicine UniversityGuangzhouChina Department of Pediatrics Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina Department of Respiratory Disease Beijing Children's HospitalCapital Medical UniversityBeijingChina Department of Pediatric Respiratory Shengjing Hospital of China Medical UniversityShenyangChina Respiratory Department Children's Hospital Affiliated to Capital Institute of PediatricsBeijingChina Department of Clinical Epidemiology Aarhus UniversityAarhusDenmark Department of Respirology Children's Hospital of Soochow UniversitySuzhouChina Department of Respiratory Children's Hospital of ShanghaiChildren's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiChina Department of Infectious Disease Hainan Women and Children's Medical CenterHaikouChina Department of Infectious Disease Children's Hospital of Chongqing Medical UniversityChongqingChina Department of Respiratory Children's Hospital of Nanjing Medical UniversityNanjingChina Department of Infectious Di

Background Respiratory syncytial virus(RSV)is the leading global cause of respiratory infections and is responsible for about 3 million hospitalizations and more than 100,000 deaths annually in children younger than 5 years,representing a major global healthcare burden.There is a great unmet need for new agents and universal strategies to prevent RSV infections in early life.A multidisciplinary consensus development group comprising experts in epidemiology,infectious diseases,respiratory medicine,and methodology aims to develop the current consensus to address clinical issues of RSV infections in children.Data sources The evidence searches and reviews were conducted using electronic databases,including PubMed,Embase,Web of Science,and the Cochrane library,using variations in terms for"respiratory syncytial virus","RSV","lower respiratory tract infection","bronchiolitis","acute","viral pneumonia","neonatal","infant""children",and"pediatric".Results Evidence-based recommendations regarding diagnosis,treatment,and prevention were proposed with a high degree of consensus.Although supportive care remains the cornerstone for the management of RSV infections,new monoclonal antibodies,vaccines,drug therapies,and viral surveillance techniques are being rolled out.Conclusions This consensus,based on international and national scientific evidence,reinforces the current recommendations and integrates the recent advances for optimal care and prevention of RSV infections.Further improvements in the management of RSV infections will require generating the highest quality of evidence through rigorously designed studies that possess little bias and sufficient capacity to identify clinically meaningful end points.

关键词： Consensus prevention Respiratory syncytial virus Treatment

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

Stepped-up development of accelerator mass spectrometry method for the detection of ^(60)Fe with the HI-13 tandem accelerator

引用

Nuclear Science and Techniques 2024年第4期35卷 136-143页

作者： Yang zhang Sheng-Quan Yan Ming He Qing-zhang Zhao Wen-hui zhang Chao-Xin Kan Jian-Ming Zhou Kang-Ning li Xiao-Fei Wang Jian-Cheng liu Zhao-Hua Peng Zhuo liang Ai-ling li Jian zheng Qi-Wen Fan yun-Ju li You-Bao Wang Zhi-Hong li Yang-Ping Shen Ding Nan Wei Nan Yu-Qiang zhang Jia-Ying-Hao li Jun-Wen Tian Jiang-lin Hou Chang-Xin Guo Zhi-Cheng zhang Ming-Hao Zhu Yu-Wen chen Yu-chen Jiang Tao Tian Jin-Long Ma Yi-hui liu Jing-Yu Dong Run-Long liu Mei-Yue-Nan Ma Yong-Shou chen Wei-Ping liu bing Guo China Institute of Atomic Energy P.O.Box 275(10)Beijing 102413China College of Science Southern University of Science and TechnologyShenzhen 518055China School of Physics Xi’an Jiaotong UniversityXi’an 710049China

The Moon provides a unique environment for investigating nearby astrophysical events such as supernovae.Lunar samples retain valuable information from these events,via detectable long-lived“fingerprint”radionuclides such as^(60)Fe.In this work,we stepped up the development of an accelerator mass spectrometry(AMS)method for detecting^(60)Fe using the HI-13tandem accelerator at the China Institute of Atomic Energy(CIAE).Since interferences could not be sufficiently removed solely with the existing magnetic systems of the tandem accelerator and the following Q3D magnetic spectrograph,a Wien filter with a maximum voltage of±60 kV and a maximum magnetic field of 0.3 T was installed after the accelerator magnetic systems to lower the detection background for the low abundance nuclide^(60)Fe.A 1μm thick Si_(3)N_(4) foil was installed in front of the Q3D as an energy degrader.For particle detection,a multi-anode gas ionization chamber was mounted at the center of the focal plane of the spectrograph.Finally,an^(60)Fe sample with an abundance of 1.125×10^(-10)was used to test the new AMS system.These results indicate that^(60)Fe can be clearly distinguished from the isobar^(60)Ni.The sensitivity was assessed to be better than 4.3×10^(-14)based on blank sample measurements lasting 5.8 h,and the sensitivity could,in principle,be expected to be approximately 2.5×10^(-15)when the data were accumulated for 100 h,which is feasible for future lunar sample measurements because the main contaminants were sufficiently separated.

关键词： Accelerator mass spectrometry Wien filter Isobar separation Supernovae Chang'e-5 lunar samples

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

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

引用

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 techniques.Neutron resonance transmission analysis(NRTA)is a powerful nondestructive method for investigating the elemental composition of an object.The 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 experiments.The results demonstrate that it is feasible to identify different elements and isotopes in samples using the NRTA method at Back-n.This 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

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：