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Epidemiology of pterygium in aged rural population of Beijing, China

Chinese Medical Journal 2010年第13期123卷 1699-1701页

作者： liang qing-feng xu liang jin xiu-ying you qi-sheng yang xiao-hui and cui tong-tong Beijing Institute of Ophthalmology Beijing tongren Eye Center Beijing Tongren Hospital Capital Medical University Beijing 100005 China

Background Pterygium is a common ophthalmic disease and an important public health problem. It may be affected by many factors such as age, gender, ultraviolet radiation exposure, and time spent outdoors. This study aimed to investigate the prevalence of pterygium and evaluate the risk factors for the development of pterygium in the aged rural population of Beijing. Methods The investigation is a population-based cross-sectional study. Participants from 198 villages of 13 suburban districts, aged 55-85 years old, were invited to complete a medical record, and 37 067 individuals were taken external ocular and fundus photos at Beijing ocular disease survey in 2008-2009. The information was uploaded by Internet and diagnosed with stages and grades by ophthalmological specialists. The prevalence, stages and grades of pterygia were observed. Results Of the 37 067 individuals, 1395 （3.76%） had pterygium. There was a significantly higher prevalence in male （5.13%） than in female （3.17%, P=0.000）. The prevelence rate increased obviously with ages （X2=7.939, P=0.019） in rural Beijing. The average prevalence of 5.91% in Daxing and Fangshan districts with low latitude and low precipitation was significantly higher than that in Miyun and Huairou districts with high latitude and deep precipitation （3.17%, P=-0.000）. The majority of the pterygia （43.5%） were in active stage and 46.5% pterygia involved pupil area corneas. Conclusions There is a statistically significant association between latitude and precipitation of habitation region and pterygium formation. Solar radiation, especially ultraviolet exposure represents a significant environment hazard to pterygium development.

关键词： pterygium prevalence Beijing, peasant

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The role of Cr content on the corrosion resistance of carbon steel and low-Cr steels in the CO_(2)-saturated brine

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Petroleum Science 2023年第2期20卷 1155-1168页

作者： Cai-Lin Wang Hong-Da Guo Jian Fang sheng-Xian Yu xiao-qi Yue qi-hui Hu cui-Wei Liu Jia-xuan Zhang Rui Zhang xiu-Sai xu Yong Hua Yu-Xing Li College of Pipeline and Civil Engineering China University of Petroleum(East China)QingdaoShandong 266580China Shandong Provincial Key Laboratory of Oil&Gas Storage and Transportation Security China University of Petroleum(East China)QingdaoShandong 266580China School of Materials Science and Engineering China University of Petroleum(East China)QingdaoShandong 266580China Corrosion and Integrity Centre Zhejiang JIULI Hi-Tech Metals Co.LtdHuzhouZhejiang 313000China Institute of Advanced Materials and Technology University of Science and Technology BeijingBeijing100083China Pipechina Engineering Technology Innovation Co. LtdTianjin 300000China

The selection of appropriate materials for the transportation pipelines is of vital importance to ensure the safety operation in Carbon Capture,Utilisation and Storage(CCUS).To clarify the effects of Cr content in steel on the resistance against general and localised corrosion,electrochemistry methods combined with pH measurements and various surface analysis techniques were implemented on X65,1Cr,3Cr and 5Cr steel samples in a CO_(2)-saturated solution at 60°C and pH 6.6 during 192 h of ***,thermodynamic and kinetic analyses of the formation of the corrosion products on carbon steel and low-Cr steels were *** results show that the general corrosion resistance increased with rising Cr content without the presence of significant corrosion products ***,with the formation and development of the corrosion products,the general corrosion resistance reduced with the increase in Cr *** formation of the compact crystalline FeCO3 on X65 and 1Cr steel surfaces offered superior general corrosion protection,while cannot provide enough localised corrosion *** contrast,the double-structural corrosion product layers on 3Cr and 5Cr steels notably suppressed the localised corrosion,but providing poor protection against general corrosion over long immersion *** study reveals the contributions of Cr content on general and localised corrosion resistance at various periods,providing references for material selection and evaluation in CO_(2) environments relevant for CCUS.

关键词： CO_(2)corrosion Material selection Cr content CCUS

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北京农村老年居民翼状胬肉患病情况分析

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眼科 2009年第2期18卷 114-117页

作者：梁庆丰金秀英游启生杨晓慧崔彤彤王爽徐亮首都医科大学附属北京同仁医院眼科中心北京市眼科研究所 100005

目的调查北京远郊区县55岁以上农村居民翼状胬肉患病情况,明确翼状胬肉的患病与年龄、性别及环境的关系。设计人群为基础的横断面研究。研究对象2008年北京10个远郊区县、142个乡镇白内障筛查时有外眼像的22008位农民(年龄55～85岁)。... 详细信息

目的调查北京远郊区县55岁以上农村居民翼状胬肉患病情况,明确翼状胬肉的患病与年龄、性别及环境的关系。设计人群为基础的横断面研究。研究对象2008年北京10个远郊区县、142个乡镇白内障筛查时有外眼像的22008位农民(年龄55～85岁)。方法采用眼底照相机进行外眼及眼底照相,将病史及影像资料传至互联网数据库上,由眼科专家集中根据影像做出翼状胬肉诊断及分期、分级。主要指标翼状胬肉患病情况、分期及分级。结果22008位农民中翼状胬肉患者911例(4.14%)。低纬度、少降水量的大兴及房山两区翼状胬肉平均患病率5.52%,与相对高纬度多降水的密云、怀柔患病率3.06%相比,差异有统计学意义(χ2=32.091,P=0.000)。男性翼状胬肉患病率(5.60%)明显高于女性(3.48%)(χ2=53.996,P=0.000)。随着年龄的增加,翼状胬肉患病率有升高趋势,但差异无统计学意义(χ2=3.848,P=0.146)。进行期翼状胬肉占患者总数的43.3%。侵入瞳孔区的IV级翼状胬肉占患者总数的44.3%。结论北京远郊区县55岁以上农村居民不同地域、不同性别间翼状胬肉患病率存在差异。进行期翼状胬肉及侵入瞳孔区的IV级翼状胬肉患者最多。

关键词：翼状胬肉患病率角膜

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Development of a High-throughput Sequencing Platform for Detection of Viral Encephalitis Pathogens Based on Amplicon Sequencing

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Biomedical and Environmental Sciences 2024年第3期37卷 294-302页

作者： ZHANG Ya Li SU Wen Zhe WANG Rui Chen LI Yan ZHANG Jun feng LIU sheng hui HU Dan He xu Chong xiao YIN Jia Yu YIN qi Kai HE ying LI Fan FU Shi Hong NIE Kai liang Guo Dong TAO Yong xu Song Tao MA Chao feng WANG Huan Yu Shaanxi University of Chinese Medicine Xianyang 712000ShaanxiChina National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases National Institute for Viral Disease Control and PreventionChinese Center for Disease Control and PreventionBeijing 102206China Guangzhou Center for Disease Control and Prevention Guangzhou 510000GuangdongChina Shandong Center for Disease Control and Prevention Jinan 250000ShandongChina Department of Ophthalmology Beijing Chaoyang HospitalCapital Medical UniversityBeijing 100020China Xi'an Center for Disease Control and Prevention Xi’an 710054ShaanxiChina

Objective Viral encephalitis is an infectious disease severely affecting human *** is caused by a wide variety of viral pathogens,including herpes viruses,flaviviruses,enteroviruses,and other *** laboratory diagnosis of viral encephalitis is a worldwide ***,high-throughput sequencing technology has provided new tools for diagnosing central nervous system ***,In this study,we established a multipathogen detection platform for viral encephalitis based on amplicon *** We designed nine pairs of specific polymerase chain reaction(PCR)primers for the 12 viruses by reviewing the relevant *** detection ability of the primers was verified by software simulation and the detection of known positive *** sequencing was used to validate the samples,and consistency was compared with Sanger *** The results showed that the target sequences of various pathogens were obtained at a coverage depth level greater than 20×,and the sequence lengths were consistent with the sizes of the predicted *** sequences were verified using the National Center for Biotechnology Information BLAST,and all results were consistent with the results of Sanger *** Amplicon-based high-throughput sequencing technology is feasible as a supplementary method for the pathogenic detection of viral *** is also a useful tool for the high-volume screening of clinical samples.

关键词： Viral encephalitis Amplicon sequencing High-throughput sequencing Multipathogen detection

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

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

作者： Xing-Yan Liu Yi-Wei yang Rong Liu Jie Wen Zhong-Wei Wen Zi-Jie Han Zhi-Zhou Ren qi An Huai-Yong Bai Jie Bao Ping Cao qi-Ping Chen Yong-Hao Chen Pin-jing Cheng Zeng-qi cui Rui-Rui Fan Chang-qing feng Min-Hao Gu feng-qin Guo Chang-Cai Han Guo-Zhu He Yong-Cheng He Yue-feng He Han-Xiong Huang Wei-Ling Huang Xi-Ru Huang xiao-Lu Ji xu-yang Ji Hao-Yu Jiang Wei Jiang Han-Tao jing Ling Kang Ming-Tao Kang Bo Li Lun Li qiang Li xiao Li yang Li yang Li Shu-Bin Liu Guang-Yuan Luan ying-Lin Ma Chang-Jun Ning Bin-Bin qi Jie Ren Xi-Chao Ruan Zhao-hui Song Hong Sun xiao-yang Sun Zhi-Jia Sun Zhi-Xin Tan Hong-qing Tang jing-Yu Tang Peng-Cheng Wang qi Wang Tao-feng Wang Yan-feng Wang Zhao-hui Wang Zheng Wang qing-Biao Wu xiao-Guang Wu xuan Wu Li-Kun Xie Han Yi Li Yu Tao Yu Yong-Ji Yu Guo-hui Zhang jing Zhang Lin-Hao Zhang Li-ying Zhang qing-Min Zhang qi-Wei Zhang Xian-Peng Zhang Yu-liang Zhang Zhi-Yong Zhang ying-Tan Zhao liang Zhou Zu-ying Zhou Dan-yang Zhu Ke-Jun Zhu Peng Zhu Institute of Nuclear Physics and Chemistry China Academy of Engineering Physics State Key Laboratory of Particle Detection and Electronics Chinese Academy of Sciences(CAS) Department of Modern Physics University of Science and Technology of China State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking University Key Laboratory of Nuclear Data China Institute of Atomic Energy Institute of High Energy Physics Chinese Academy of Sciences(CAS) Spallation Neutron Source Science Center University of South China Northwest Institute of Nuclear Technology Department of Engineering and Applied Physics University of Science and Technology of China Beihang University Xi’an Jiaotong University

To verify the performance of the neutron total cross-sectional spectrometer, the neutron total cross section of carbon is initially measured in the energy range of 1 eV to 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

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The Chinese Society of Clinical Oncology (CSCO): Clinical guidelines for the diagnosis and treatment of gastric cancer, 2023

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Cancer Communications 2024年第1期44卷 127-172页

作者： feng-Hua Wang xiao-Tian Zhang Lei Tang qi Wu Mu-Yan Cai Yuan-Fang Li xiu-Juan Qu Hong qiu Yu-jing Zhang Jie-Er ying Jun Zhang Ling-Yu Sun Rong-Bo Lin Chang Wang Hao Liu Miao-Zhen qiu Wen-Long Guan sheng-Xiang Rao Jia-Fu Ji Yan Xin Wei-qi sheng hui-Mian xu Zhi-Wei Zhou Ai-Ping Zhou jing jin Xiang-Lin Yuan feng Bi Tian-Shu Liu Han liang Yan-qiao Zhang Guo-Xin Li Jun liang Bao-Rui Liu Lin Shen jin Li Rui-Hua xu Department of Medical Oncology Sun Yat-sen University Cancer CenterState Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouGuangdongP.R.China Department of Gastrointestinal Oncology Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education)Peking University Cancer HospitalBeijingP.R.China Department of Radiology Peking University Cancer HospitalBeijingP.R.China Department of Endoscopy Center Peking University Cancer HospitalBeijingP.R.China Department of Pathology Sun Yat-sen University Cancer CenterState Key Laboratory of Oncology in South ChinaCollaborative Innovation Center of Cancer MedicineGuangzhouGuangdongP.R.China Department of Gastric Surgery Sun Yat-sen University Cancer CenterState Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouGuangdongP.R.China Department of Medical Oncology The First Hospital of China Medical UniversityShenyangLiaoningP.R.China Department of Medical Oncology Tongji Hospital Affiliated to Tongji Medical College of Huazhong University of Science and TechnologyWuhanHubeiP.R.China Department of Radiotherapy Sun Yat-sen University Cancer CenterState Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouGuangdongP.R.China Department of Medical Oncology Zhejiang Cancer HospitalHangzhouZhejiangP.R.China Department of Medical Oncology Ruijin HospitalShanghai Jiaotong University School of MedicineShanghaiP.R.China Department of Surgical Oncology The Fourth Affiliated Hospital of Harbin Medical UniversityHarbinHeilongjiangP.R.China Department of Medical Oncology Fujian Cancer HospitalFuzhouFujianP.R.China Tumor Center The First Hospital of Jilin UniversityChangchunJilinP.R.China Department of General Surgery Nanfang HospitalSouthern Medical UniversityGuangzhouGuangdongP.R.China Department of Radiology Zhongshan HospitalFudan UniversityShanghaiP.R.China Department of

The 2023 update of the Chinese Society of Clinical Oncology(CSCO)Clini-cal Guidelines for Gastric Cancer focuses on standardizing cancer diagnosis and treatment in China,reflecting the latest advancements in evidence-based medicine,healthcare resource availability,and precision *** updates address the differences in epidemiological characteristics,clinicopatho-logical features,tumor biology,treatment patterns,and drug selections between Eastern and Western gastric cancer *** revisions include a structured template for imaging diagnosis reports,updated standards for molecular marker testing in pathological diagnosis,and an elevated recommendation for neoadju-vant chemotherapy in stage III gastric *** advanced metastatic gastric cancer,the guidelines introduce new recommendations for immunotherapy,anti-angiogenic therapy and targeted drugs,along with updated management strategies for human epidermal growth factor receptor 2(HER2)-positive and deficient DNA mismatch repair(dMMR)/microsatellite instability-high(MSI-H)***,the guidelines offer detailed screening recommendations for hereditary gastric cancer and an appendix listing drug treatment regimens for various stages of gastric *** 2023 CSCO Clinical Guidelines for Gastric Cancer updates are based on both Chinese and international clinical research and expert consensus to enhance their applicability and relevance in clinical practice,particularly in the heterogeneous healthcare landscape of China,while maintaining a commitment to scientific rigor,impartiality,and timely revisions.

关键词： Chinese Society of Clinical Oncology(CSCO) gastric cancer diagnosis surgery neoadjuvant adjuvant radiotherapy chemotherapy targeted therapy immunotherapy

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Paired quasi-periodic pulsations of hard X-ray emission in a solar flare

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Science China(Physics,Mechanics & Astronomy) 2023年第5期66卷 195-206页

作者： Hai-sheng Zhao Dong Li Shao-Lin Xiong Yan-qiu Zhang yang Su Wei Chen Yi Zhao xiao-Bo Li Jia-Cong Liu Wen-Xi Peng Rui qiao Xin-qiao Li Xiang-yang Wen Li-Ming Song Shi-Jie Zheng Xin-ying Song xiao-Yun Zhao Yue Huang Shuang-Nan Zhang Shuo xiao Ce Cai Zheng-Hua An Can Chen Gang Chen Wei Chen Yan-qi Du Min Gao Ke Gong Dong-Ya Guo Zhi-Wei Guo Jian-Jian He Bin Li Chao Li Chao-yang Li Gang Li Jian-hui Li Lu Li qing-Xin Li Yan-Guo Li jing liang xiao-Hua liang jin-Yuan Liao xiao-jing Liu Ya-qing Liu qi Luo Xiang Ma Bin Meng Ge Ou Dong-Li Shi jing-Yan Shi Gong-Xing Sun Xi-Lei Sun you-Li Tuo Chen-Wei Wang hui Wang jin Wang jin-Zhou Wang Ping Wang Wen-Shuai Wang Hong Wu sheng-Lun Xie Yan-Bing xu Yu-Peng xu Wang-Chen xue sheng yang Min Yao Jian-ying Ye qi-Bin Yi Chao-Yue Zhang Da-Li Zhang Fan Zhang Fei Zhang Hong-Mei Zhang Kai Zhang Peng Zhang xiao-Lu Zhang Zhen Zhang Guo-ying Zhao Shi-Yi Zhao Chao Zheng Xing Zhou Yue Zhu Key Laboratory for Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Purple Mountain Observatory Chinese Academy of SciencesNanjing 210023China University of Chinese Academy of Sciences Beijing 100049China Department of Astronomy Beijing Normal UniversityBeijing 100875China School of Computing and Artificial Intelligence Southwest Jiaotong UniversityChengdu 611756China Physics and Space Science College China West Normal UniversityNanchong 637002China Key Laboratory of Stellar and Interstellar Physics and Department of Physics Xiangtan UniversityXiangtan 411105China Institute of Astrophysics Central China Normal UniversityWuhan 430079China School of Physics Changchun University of Science and TechnologyChangchun 130022China College of Physics and Engineering Qufu Normal UniversityQufu 273165China College of Physics Sciences&Technology Hebei UniversityBaoding 071002China

We investigate high time resolution data obtained by the Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor(GECAM)during the flare event on 2022 April 21 at 01:52 *** subpeaks with durations of 4-6 s have been detected in the hard X-ray precursor phase,and the key feature is that they appear in pairs and seem like double-peak *** subpeaks are rarely observed in hard X-ray band and confirmed by the microwave obtained by Nobeyama Radio Polarimeters(NoRP)and Radio Solar Telescope Network(RSTN).While an exponential function can describe the continuum component of the time profile from the precursor to part of the impulsive *** periods of quasi-periodic pulsations(QPPs)are detected to be about 7.3 and 12.8 s for the precursor and impulsive phase,respectively,with at least 95%confidence *** paired QPPs are assumed to be double-peak QPPs and then the scenario of current loop coalescence model is found to be in good agreement with our *** precursor phase can be interpreted as the oscillating coalescence of two islands,while the impulsive phase can be interpreted as more islands to coalesce one by one to form larger islands.

关键词： solar flare QPPs loop coalescence circular-ribbon flare

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Intracerebral Hemorrhage and Venous Infarction after Deep Brain Stimulation Lead Placement

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Chinese Medical Journal 2018年第18期131卷 2232-2234页

作者： Zhi-qiang cui hui-Fang Song xiu-feng Zhang Long-sheng Pan Zhi-qi Mao Xin xu Shu-Li liang Xin-Guang Yu Zhi-Pei Ling Department of Neurosurgery People's Liberation Army General Hospital People's Liberation Army Postgraduate Medical School Beijing 100853 China Department of Neurology Beijing Sport University Hospital Beijing 100084 China Department of Neurosurgery Shanxi Provincial People's Hospital Taiyuan Shanxi 030012 China

To the Editor： Cerebral vascular events （intracerebral hemorrhage [ICH] or venous infarction） are the most feared complications of deep brain stimulation （DBS） surgery. The estimated risk of ICH in DBS surgery reportedly varies from 0.2% to 5.6%.[1-3] ICH may develop at one of two sites depending on the puncture tract：（1） in the basal ganglia or target area or （2） in the puncture channel or cortex area. However, venous infarction in association with DBS surgery has rarely been described.[4-6]

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The Chinese Society of Clinical Oncology(CSCO):Clinical guidelines for the diagnosis and treatment of gastric cancer,2021

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Cancer Communications 2021年第8期41卷 747-795页

作者： feng-Hua Wang xiao-Tian Zhang Yuan-Fang Li Lei Tang xiu-Juan Qu Jie-Er ying Jun Zhang Ling-Yu Sun Rong-Bo Lin Hong qiu Chang Wang Miao-Zhen qiu Mu-Yan Cai qiWu Hao Liu Wen-Long Guan Ai-Ping Zhou Yu-jing Zhang Tian-Shu Liu feng Bi Xiang-Lin Yuan sheng-Xiang Rao Yan Xin Wei-qi sheng hui-Mian xu Guo-Xin Li Jia-Fu Ji Zhi-Wei Zhou Han liang Yan-qiao Zhang jing jin Lin Shen jin Li Rui-Hua xu Department of Medical Oncology State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineSun Yat-sen University Cancer CenterGuangzhouGuangdong 510060P.R.China Department of Gastrointestinal Oncology Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education)Peking University Cancer Hospital and InstituteBeijing 100142P.R.China Department of Gastric Surgery State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineSun Yat-sen University Cancer CenterGuangzhouGuangdong 510060P.R.China Department of Radiology Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education)Peking University Cancer Hospital and InstituteBeijing 100142P.R.China Department of Medical Oncology The First Hospital of China Medical UniversityShenyangLiaoning 110001P.R.China Department of Medical Oncology Zhejiang Cancer HospitalHangzhouZhejiang 310006P.R.China Department of Medical Oncology Ruijin HospitalShanghai Jiaotong University School of MedicineShanghai 200025P.R.China Department of Surgical Oncology The Fourth Affiliated Hospital of Harbin Medical UniversityHarbinHeilongjiang 150001P.R.China Department of Medical Oncology Fujian Cancer HospitalFuzhouFujian 350000P.R.China Department of Medical Oncology Tongji Hospital Affiliated to Tongji Medical College of Huazhong University of Science and TechnologyWuhanHubei 430030P.R.China Cancer Center of The First Hospital of Jilin University ChangchunJilin 130021P.R.China Department of Pathology State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center of Cancer MedicineSun Yat-sen University Cancer CenterGuangzhouGuangdong 510060P.R.China Department of Endoscopy Center Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education)Peking University Cancer Hospital and InstituteBeijing 100142P.R.China Department of General Surgery Nanfang HospitalSouthern Medical UniversityGuangzhouGuan

There exist differences in the epidemiological characteristics,clinicopathological features,tumor biological characteristics,treatment patterns,and drug selections between gastric cancer patients from the Eastern and Western *** Chinese Society of Clinical Oncology(CSCO)has organized a panel of senior experts specializing in all sub-specialties of gastric cancer to compile a clinical guideline for the diagnosis and treatment of gastric cancer since 2016 and renews it *** into account regional differences,giving full consideration to the accessibility of diagnosis and treatment resources,these experts have conducted expert consensus judgment on relevant evidence and made various grades of recommendations for the clinical diagnosis and treatment of gastric cancer to reflect the value of cancer treatment and meeting health economic indexes in *** 2021 CSCO Clinical Practice Guidelines for Gastric Cancer covers the diagnosis,treatment,follow-up,and screening of gastric *** on the 2020 version of the CSCO Chinese Gastric Cancer guidelines,this updated guideline integrates the results ofmajor clinical studies from China and overseas for the past year,focused on the inclusion of research data from the Chinese population for more personalized and clinically relevant *** the comprehensive treatment of non-metastatic gastric cancer,attentions were paid to neoadjuvant *** value of perioperative chemotherapy is gradually becoming clearer and its recommendation level has been *** the comprehensive treatment of metastatic gastric cancer,recommendations for immunotherapy were included,and immune checkpoint inhibitors fromthird-line to the first-line of treatment for different patient groups with detailed notes are provided.

关键词： adjuvant chemotherapy Chinese Society of Clinical Oncology(CSCO) diagnosis gastric cancer immunotherapy neoadjuvant radiotherapy surgery targeted therapy

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Laser test of the prototype of CEE time projection chamber

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Nuclear Science and Techniques 2018年第3期29卷 138-142页

作者： Wen Huang Fei Lu He Li He Dong Yong-jin Ye Chen-sheng Zhou Long-Xiang Liu Long Du xiao-Hai jin Peng-Liu jin-hui Chen Song Zhang Chen Zhong Chen Wu qi-Te Li Hong-liang Zang Yu-Cheng Ge Cheng-Jian Lin hui-Ming Jia Nan-Ru Ma Dong-Xi Wang Peng Ma Jun xu De-qing Fang Yu-Gang Ma Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871China China Institute of Atomic Energy P.O.Box 275(10)Beijing 102413China Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China

A prototype thick-GEM-based cooling storage ring external-target experiment(CEE) time projection chamber(TPC) is constructed and tested with the pulsed ultraviolet laser beams. The results indicate that the prototype TPC has a good performance in three-dimensional track resolution. In X direction the position resolution is about 0.2 mm, and in Y direction the position resolution is about 0.5 mm. The results also determine that the energy resolution is about 5.4%, which achieve the requirements of the CEE experiment and can be used to study the nuclear state equation and the quantum chromo dynamics.

关键词： TPC Thick GEM Laser test Track resolution Energy resolution

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