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铁酸钙的形态对烧结矿抗断裂性能的影响

钢铁研究学报 2006年第2期18卷 55-58页

作者：应自伟许力贤姜茂发沈岩松东北大学材料与冶金学院辽宁沈阳110004

采用维氏压痕试验法,研究了含有不同形态铁酸钙的烧结矿中裂纹的萌生与扩展,考察了铁酸钙的形态对烧结矿抗断裂性能的影响。结果表明:铁酸钙尺寸较大时,烧结矿的抗断裂性能由铁酸钙本体的断裂韧性决定,它的尺寸较小时由其形态决定;铁酸... 详细信息

采用维氏压痕试验法,研究了含有不同形态铁酸钙的烧结矿中裂纹的萌生与扩展,考察了铁酸钙的形态对烧结矿抗断裂性能的影响。结果表明:铁酸钙尺寸较大时,烧结矿的抗断裂性能由铁酸钙本体的断裂韧性决定,它的尺寸较小时由其形态决定;铁酸钙的晶粒越细,致使裂纹萌生的临界载荷越大,烧结矿的抗断裂性能越好。烧结生产中生成细晶粒铁酸钙有利于提高烧结矿的抗断裂性能。

关键词：铁酸钙裂纹断裂韧性临界载荷烧结矿

Measurement of Br(n,γ)cross sections up to stellar s-process temperatures at the CSNS Back‑n

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Nuclear Science and Techniques 2023年第11期34卷 226-241页

作者： Gao‑Le Yang Zhen‑Dong An wei jiang xian‑Kai li wei‑wei Qiu Zheng‑fa liao zi‑Yue Zhuang Xiao‑Ping Zhang Sheng‑li Chen Chen‑Chen Guo Er‑Xi Xiao Xiao fang Xin‑xiang li Xin‑Rong Hu Bing jiang Jin‑Cheng Wang Jie Ren Wen Luo Zhi‑Chao Zhu Hao‑Yang Lan Zong‑wei Cao xu Ma ying‑Du liu Pu‑Sen Wang Yi Yang Ping Su xian‑Gai Deng Wan‑Bing He Chun‑Wang Ma Yu‑Ting Wang Zhi‑Tao Dai Peng‑Qin He Ren‑Guang Tang Tao Zhou Jing Wang Han Yi Yue Zhang Yong‑Hao Chen Rui‑Rui fan Ke‑Qing Gao Qiang li Kang Sun Zhi‑Xin Tan Min‑Hao Gu Han‑Tao Jing Jing‑Yu Tang School of Physics and Astronomy Sun Yat-sen UniversityZhuhai 519082China Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China State Key Laboratory of Lunar and Planetary Sciences Macao University of Science and TechnologyMacao 999078China CNSA Macao Center for Space Exploration and Science Macao 999078China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Spallation Neutron Source Science Center Dongguan 523803China School of Nuclear Science and Technology University of South ChinaHengyang 421001China Sino‑French Institute of Nuclear Engineering and Technology Sun Yat-sen UniversityZhuhai 519082China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China School of Materials Science and Engineering Xiangtan UniversityXiangtan 411100China Key Laboratory of Nuclear Physics and Ion‑beam Application(MOE) Institute of Modern PhysicsDepartment of Nuclear Science and TechnologyFudan UniversityShanghai 200433China Institute of Particle and Nuclear Physics Henan Normal UniversityXinxiang 453007China School of Physics Henan Normal UniversityXinxiang 453007China Shenzhen Center Cancer hospitalChinese Academy of Medical SciencesShenzhen 518100China School of Nuclear Science and Technology University of Science and Technology of ChinaHefei 230027China

The neutron capture cross sections(n,γ)of bromine were obtained using the time-of-flight technique at the Back-n facility of the China Spallation Neutron ***γ-rays originating from neutron-induced capture events were detected using four C_(6)D_(6) *** pulse-height weighting technique and double-bunch unfolding method based on Bayesian theory were used in the data *** deductions,normalization,and corrections were carefully considered to obtain reliable measurement *** multilevel R-matrix Bayesian code SAMMY was used to extract the resonance parameters in the resolved resonance region(RRR).The average cross sections in the unresolved resonance region(URR)were obtained from 10 to 400 *** experimental results were compared with data from several evaluated libraries and previous experi-ments in the RRR and *** TALYS code was used to describe the average cross sections in the *** astrophysical Maxwell average cross sections(MACSs)of ^(79,81)Br from kT=5 to 100 keV were calculated over a sufficiently wide range of neutron *** a thermal energy of kT=30 keV,the MACS value for ^(79)Br 682±68 mb was in good agreement with the KADoNiS v1.0 recommended *** contrast,the value of 293±29 mb for ^(81)Br was substantially higher than that of the evaluated database and the KADoNiS v1.0 recommended value.

关键词： Time-of-flight technique Neutron capture cross sections Maxwell average cross sections

Centralized isolation of Helicobacter pylori from multiple centers and transport condition influences

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World Journal of Gastroenterology 2015年第3期21卷 944-952页

作者： Ya-Nan Gong You-Ming li Ning-Min Yang Hong-Zhang li Feng Guo Lang lin Qun-ying Wang Jia-Kun Zhang zi-Zhong Ji Ji-Bo mao Jun-liang mao Zheng-Chao Shi Wu-Heng Tang Xin-Jian Zhu wei Shao Xiao-Feng Zhang Xing-Hua Wang Yue-Feng Tong Mi-Zu jiang Guang-Lan Chen Zhi-Yong Wang Hui-Min Tu Guo-fa jiang Jian-Sheng Wu xu-Peng Chen Qiu-Long Ding Hong Ouyang Feng-Zhe Jin Yan-li xu Jian-Zhong Zhang State Key Laboratory for Infectious Disease Prevention and Control National Institute for Communicable Disease Control and PreventionChinese Center for Disease Control and Prevention Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases The First Affiliated Hospital College of MedicineZhejiang University Zhiyuan Medical Inspection Institute Co. Ltd. Sanmen People’s Hospital The First People’s Hospital of Xiaoshan District The First People’s Hospital of Cangnan Jinhua Municipal Central Hospital The First People’s Hospital of Pingyang The First Hospital of Jiaxing Zhoushan Hospital The First People’s Hospital of Wenling Rui’an People’s Hospital Maternal and Child Health Hospital of Zhoushan City Shangyu People’s Hospital People’s Hospital of Putuo District Zhoushan Hangzhou First People’s Hospital Qingtian People’s Hospital The First People’s Hospital of Yongkang The Children’s Hospital Zhejiang University School of Medicine lishui People’s Hospital The Affiliated Hospital of Hangzhou Normal University Wuxi No.4 Hospital Affiliated to Suzhou University Jinhua Wenrong Hospital The First Affiliated Hospital of Wenzhou Medical College Yueqing People’s Hospital Tiantai People’s Hospital lin’an people’s Hospital Rui’an City TCM Hospital Medical College of Hebei University of Engineering

AIM:To evaluate the efficacy of centralized culture and possible influencing ***:From January 2010 to July 2012,66452 patients with suspected Helicobacter pylori(***) infection from 26 hospitals in Zhejiang and jiangsu Provinces in China underwent gastrointestinal *** mucosal biopsies were taken from the antrum for *** biopsies were transported under natural environmental temperature to the central laboratory in Hangzhou city and divided into three groups based on their transport time:5,24 and 48 *** culture results were reported after 72 h and the positive culture rates were analyzed by a χ2 *** additional 5736 biopsies from ***-positive patients(5646 rapid urease test-positive and 90 14C-urease breath test-positive) were also cultured for quality control in the central laboratory ***:The positive culture rate was 31.66%(21036/66452) for the patient samples and 71.72%(4114/5736) for the ***-positive quality control *** the 5 h transport group,the positiveculture rate was 30.99%(3865/12471),and 32.84%(14960/45553) in the 24 h transport *** contrast,the positive culture rate declined significantly in the 48 h transport group(26.25%; P lined from 36.67%(1462/3987) to 24.12%(1799/7459).When the temperature exceeded 24℃,the positive culture rate decreased significantly,especially in the 48 h transport group(23.17%).CONCLUSION:Transportation of specimens within 24 h and below 24℃ is reasonable and acceptable for centralized culture of multicenter *** samples.

关键词： Centralized isolation Helicobacter pylori Influenc

Prognostic significance of regional lymphadenectomy in T1b gallbladder cancer:Results from 24 hospitals in China

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World Journal of Gastrointestinal Surgery 2021年第2期13卷 176-186页

作者： Tai Ren Yong-Sheng li xue-Yi Dang Yang li zi-Yu Shao Run-fa Bao Yi-Jun Shu xu-An Wang Wen-Guang Wu xiang-Song Wu mao-Lan li Hong Cao Kun-Hua Wang Hong-Yu Cai Chong Jin Hui-Han Jin Bo Yang Xiao-Qing jiang Jian-Feng Gu Yun-Fu Cui Zai-Yang Zhang Chun-Fu Zhu Bei Sun Chao-liu Dai lin-Hui Zheng Jing-Yu Cao Zhe-wei Fei Chang-Jun liu Bing li Jun liu Ye-Ben Qian Yi Wang Ya-wei Hua Xi Zhang Chang liu Wan-Yee Lau ying-Bin liu Department of General Surgery Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200092China Shanghai Key Laboratory of Biliary Tract Disease Research Shanghai 200092China Department of Biliary-Pancreatic Surgery Renji Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200127China State Key Laboratory for Oncogenes and Related Genes Shanghai 200127China Department of General Surgery Shanxi Provincial Cancer HospitalTaiyuan 030013Shanxi ProvinceChina Department of GI Surgery China-Japan Union Hospital of Jilin UniversityChangchun 130033Jilin ProvinceChina Department of Gastrointestinal and Hernia Surgery The First Affiliated Hospital of Kunming Medical UniversityKunming 650031Yunnan ProvinceChina Department of Hepatobiliary Surgery Nantong Tumor HospitalNantong 226361Jiangsu ProvinceChina Department of General Surgery Taizhou Municipal HospitalTaizhou 318000Jiangsu ProvinceChina Department of Hepatobiliary Surgery Wuxi Second People's HospitalWuxi 214002Jiangsu ProvinceChina Department of General Surgery The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325015Zhejiang ProvinceChina Department of Biliary Tract Surgery Second Military Medical UniversitySecondary Military Medical UniversityShanghai 200438China Department of General Surgery Changshu No.1 People’s Hospital Affiliated to Soochow UniversityChangshu 215500Jiangsu ProvinceChina Department of Hepatopancreatobiliary Surgery Second Affiliated Hospital of Harbin Medical UniversityHarbin 150086Heilongjiang ProvinceChina Department of General Surgery Shaoxing Second HospitalShaoxing 312000Zhejiang ProvinceChina Department of HPB Surgery Changzhou No.2 People’s HospitalChangzhou 213003Jiangsu ProvinceChina Department of Pancreatic and Biliary Surgery The First Affiliated Hospital of Harbin Medical UniversityHarbin 150009Heilongjiang ProvinceChina Department of Hepatobiliary Surgery Shengjing Hospital of China Medical UniversityShenyang 1

BACKGROUND Whether regional lymphadenectomy(RL)should be routinely performed in patients with T1b gallbladder cancer(GBC)remains a subject of *** To investigate whether RL can improve the prognosis of patients with T1b *** We studied a multicenter cohort of patients with T1b GBC who underwent surgery between 2008 and 2016 at 24 hospitals in 13 provinces in *** logrank test and Cox proportional hazards model were used to compare the overall survival(OS)of patients who underwent cholecystectomy(Ch)+RL and those who underwent Ch *** investigate whether combined hepatectomy(Hep)improved OS in T1b patients,we studied patients who underwent Ch+RL to compare the OS of patients who underwent combined Hep and patients who did *** Of the 121 patients(aged 61.9±10.1 years),77(63.6%)underwent Ch+RL,and 44(36.4%)underwent Ch ***(9.1%)patients in the Ch+RL group had lymph node *** 5-year OS rate was significantly higher in the Ch+RL group than in the Ch group(76.3%vs 56.8%,P=0.036).Multivariate analysis showed that Ch+RL was significantly associated with improved OS(hazard ratio:0.51;95%confidence interval:0.26-0.99).Among the 77 patients who underwent Ch+RL,no survival improvement was found in patients who underwent combined Hep(5-year OS rate:79.5%for combined Hep and 76.1%for no Hep;P=0.50).CONCLUSION T1b GBC patients who underwent Ch+RL had a better prognosis than those who underwent ***+Ch showed no improvement in prognosis in T1b GBC *** recommended by both the National Comprehensive Cancer Network and Chinese Medical Association guidelines,RL was only performed in 63.6%of T1b GBC *** Ch+RL should be advised in T1b GBC.

关键词： Gallbladder cancer Lymphadenectomy Hepatectomy Staging Prognosis Surgery

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

焦炉煤气竖炉法生产直接还原铁的煤气用量探讨

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材料与冶金学报 2010年第2期9卷 88-91页

作者：赵宗波应自伟许力贤姜茂发东北大学材料与冶金学院沈阳110004

用焦炉煤气生产直接还原铁既可解决气源问题,又可高效利用焦炉煤气.目前我国还没有成熟的焦炉煤气竖炉法生产直接还原铁工艺,本文通过热力学分析,从还原剂和载热体两方面来探讨焦炉煤气竖炉法生产直接还原铁的煤气用量方案.

关键词：焦炉煤气竖炉直接还原铁

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焦炉煤气竖炉法生产DRI的还原煤气用量

工业加热 2010年第6期39卷 10-12页

作者：赵宗波应自伟许力贤姜茂发东北大学材料与冶金学院辽宁沈阳110004

近年来,由于废钢短缺,DRI生产越来越受到重视。在直接还原生产工艺中,气基竖炉法占绝对优势,但此法只适合天然气资源充足地区。用焦炉煤气生产DRI既可解决气源问题,又可高效利用焦炉煤气,但目前该工艺尚未工业化,成为当前科研工作者们... 详细信息

近年来,由于废钢短缺,DRI生产越来越受到重视。在直接还原生产工艺中,气基竖炉法占绝对优势,但此法只适合天然气资源充足地区。用焦炉煤气生产DRI既可解决气源问题,又可高效利用焦炉煤气,但目前该工艺尚未工业化,成为当前科研工作者们的研究焦点之一。基于理论计算,从还原剂的角度来探讨焦炉煤气竖炉法生产直接还原铁(DRI)的还原煤气用量,拟为该工艺的实施提供工艺参数。

关键词：焦炉煤气竖炉 DRI

Timing analysis of the black hole candidate EXO 1846–031 with Insight-HXMT monitoring

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Research in Astronomy and Astrophysics 2021年第3期21卷 193-204页

作者： He-Xin liu Yue Huang Guang-Cheng Xiao Qing-Cui Bu Jin-Lu Qu Shu Zhang Shuang-Nan Zhang Shu-Mei Jia fang-Jun Lu xiang Ma lian Tao wei Zhang li Chen li-Ming Song Ti-Pei li Yu-Peng xu xue-Lei Cao Yong Chen Cong-Zhan liu Ce Cai Zhi Chang Gang Chen Tian-xiang Chen Yi-Bao Chen Yu-Peng Chen wei Cui wei-wei Cui Jing-Kang Deng Yong-wei Dong Yuan-Yuan Du Min-xue Fu Guan-Hua Gao He Gao Min Gao Ming-Yu Ge Yu-Dong Gu Ju Guan Cheng-Cheng Guo Da-wei Han Jia Huo Lu-Hua jiang wei-Chun jiang Jing Jin Yong-Jie Jin ling-Da Kong Bing li Cheng-Kui li Gang li mao-Shun li wei li xian li Xiao-Bo li xu-fang li Yang-Guo li Zheng-wei li Xiao-Hua liang Jing-Yuan liao Bai-Sheng liu Guo-Qing liu Hong-wei liu Xiao-Jing liu Yi-Nong liu Bo Lu xue-Feng Lu Qi Luo Tao Luo Bin Meng Yi Nang Jian-Yin Nie Ge Ou Na Sai Ren-Cheng Shang Xin-ying Song liang Sun ying Tan You-li Tuo Chen Wang Guo-Feng Wang Juan Wang ling-Jun Wang Weng-Shuai Wang Yu-Sa Wang xiang-Yang Wen Bai-Yang Wu Bo-Bing Wu Mei Wu Shuo Xiao Shao-lin Xiong He xu Jia-wei Yang Sheng Yang Yan-Ji Yang Yi-Jung Yang Qi-Bin Yi Qian-Qing Yin Yuan You Ai-Mei Zhang Cheng-Mo Zhang fan Zhang Hong-Mei Zhang Juan Zhang Tong Zhang Wan-Chang Zhang Wen-Zhao Zhang Yi Zhang Yi-Fei Zhang Yong-Jie Zhang Yuan-Hang Zhang Yue Zhang Zhao Zhang Zhi Zhang zi-liang Zhang Hai-Sheng Zhao Xiao-fan Zhao Shi-Jie Zheng Yao-Guang Zheng Deng-Ke Zhou Jian-Feng Zhou Yu-xuan Zhu Ren-lin Zhuang Yue Zhu Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Chinese Academy of SciencesBeijing 100049China Institut fur Astronomie und Astrophysik Kepler Center for Astro and Particle PhysicsEberhard Karls Universität72076 TubingenGermany Department of Astronomy Beijing Normal UniversityBeijing 100088China Department of Astronomy Tsinghua UniversityBeijing 100084China Department of Physics Tsinghua UniversityBeijing 100084China Department of Engineering Physics Tsinghua UniversityBeijing 100084China Key Laboratory of Space Astronomy and Technology National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China College of Physics Sciences&Technology Hebei UniversityBaoding 071002Hebei ProvinceChina

We present the observational results from a detailed timing analysis of the black hole candidate EXO 1846-031 during its outburst in 2019 with the observations of Insight-HXMT,NICER and *** outburst can be classified roughly into four different ***-C quasi-periodic oscillations(QPOs)observed by NICER(about 0.1-6 Hz)and Insight-HXMT(about 0.7-8 Hz)are also reported in this ***,we study various physical quantities related to QPO *** QPO rms-frequency relationship in the energy band 1-10 keV indicates that there is a turning pointing in frequency around2 Hz,which is similar to that of GRS 1915+105.A possible hypothesis for the relationship above may be related to the inclination of the source,which may require a high inclination to explain *** relationships between QPO frequency and QPO rms,hardness,total fractional rms and count rate have also been found in other transient sources,which can indicate that the origin of type-C QPOs is non-thermal.

关键词： X-ray binaries black hole candidate QPO EXO 1846–031

The first data release(DR1) of the LAMOST regular survey

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Research in Astronomy and Astrophysics 2015年第8期15卷 1095-1124页

作者： A-li Luo Yong-Heng Zhao Gang Zhao li-Cai Deng Xiao-wei liu Yi-Peng Jing Gang Wang Hao-Tong Zhang Jian-Rong Shi xiang-Qun Cui Yao-Quan Chu Guo-Ping li Zhong-Rui Bai Yue Wu Yan Cai Shu-Yun Cao zi-Huang Cao Jeffrey L.Carlin Hai-Yuan Chen Jian-Jun Chen Kun-Xin Chen li Chen xue-Lei Chen Xiao-Yan Chen ying Chen Norbert Christlieb Jia-Ru Chu Chen-Zhou Cui Yi-Qiao Dong Bing Du Dong-wei fan Lei Feng Jian-Ning Fu Peng Gao xue-Fei Gong Bo-Zhong Gu Yan-Xin Guo Zhan-Wen Han Bo-liang He Jin-liang Hou Yong-Hui Hou Wen Hou Hong-Zhuan Hu Ning-Sheng Hu Zhong-Wen Hu Zhi-ying Huo Lei Jia fang-Hua jiang xiang jiang Zhi-Bo jiang Ge Jin Xiao Kong xu Kong Ya-Juan Lei Ai-Hua li Chang-Hua li Guang-wei li Hai-Ning li Jian li Qi li Shuang li Sha-Sha li Xin-Nan li Yan li Yin-Bi li Ye-Ping li Yuan liang Chien-Cheng lin Chao liu Gen-Rong liu Guan-Qun liu Zhi-Gang liu Wen-Zhi Lu Yu Luo Yin-Dun mao Heidi Newberg Ji-Jun Ni Zhao-xiang Qi Yong-Jun Qi Shi-Yin Shen Huo-Ming Shi Jing Song Yi-Han Song Ding-Qiang Su Hong-Jun Su Zheng-Hong Tang Qing-Sheng Tao Yuan Tian Dan Wang Da-Qi Wang Feng-Fei Wang Guo-Min Wang Hai Wang Hong-Chi Wang Jian Wang Jia-Ning Wang Jian-ling Wang Jian-Ping Wang Jun-xian Wang Lei Wang Meng-Xin Wang Shou-Guan Wang Shu-Qing Wang Xia Wang Ya-Nan Wang You Wang Yue-Fei Wang You-Fen Wang Peng wei Ming-Zhi wei Hong Wu Ke-Fei Wu xue-Bing Wu Yu-Zhong Wu Xiao-Zheng Xing ling-Zhe xu Xin-Qi xu Yan xu Tai-Sheng Yan De-Hua Yang Hai-Feng Yang Hui-Qin Yang Ming Yang Zheng-Qiu Yao Yong Yu Hui Yuan Hai-Bo Yuan Hai-Long Yuan wei-Min Yuan Chao Zhai En-Peng Zhang Hua-wei Zhang Jian-Nan Zhang li-Pin Zhang wei Zhang Yong Zhang Yan-Xia Zhang Zheng-Chao Zhang Ming Zhao fang Zhou xu Zhou Jie Zhu Yong-Tian Zhu Si-Cheng Zou fang Zuo National Astronomical Observatories Chinese Academy of Sciences Department of Astronomy Peking University Shanghai Astronomical Observatory Chinese Academy of Sciences Nanjing Institute of Astronomical Optics & Technology National Astronomical ObservatoriesChinese Academy of Sciences University of Science and Technology of China Department of Physics Applied Physics and AstronomyRensselaer Polytechnic InstituteTroyNY 12180USA Department of Physics and Astronomy Earlham CollegeRichmondIN 47374USA Universitt Heidelberg Zentrum für AstronomieLandessternwarteKnigstuhl 1269117 HeidelbergGermany Department of Astronomy Beijing Normal University Yunnan Observatories Chinese Academy of Sciences Purple Mountain Observatory Chinese Academy of Sciences

The Large sky Area Multi-Object Fiber Spectroscopic Telescope（LAMOST） general survey is a spectroscopic survey that will eventually cover approximately half of the celestial sphere and collect 10 million spectra of stars, galaxies and QSOs. Objects in both the pilot survey and the first year regular survey are included in the LAMOST DR1. The pilot survey started in October 2011 and ended in June 2012, and the data have been released to the public as the LAMOST Pilot Data Release in August 2012. The regular survey started in September 2012, and completed its first year of operation in June 2013. The LAMOST DR1 includes a total of 1202 plates containing 2 955 336 spectra, of which 1 790 879 spectra have observed signalto-noise ratio（SNR） ≥ 10. All data with SNR ≥ 2 are formally released as LAMOST DR1 under the LAMOST data policy. This data release contains a total of 2 204 696 spectra, of which 1 944 329 are stellar spectra, 12 082 are galaxy spectra and 5017 are quasars. The DR1 not only includes spectra, but also three stellar catalogs with measured parameters： late A,FGK-type stars with high quality spectra（1 061 918 entries）, A-type stars（100 073 entries）, and M-type stars（121 522 entries）. This paper introduces the survey design, the observational and instrumental limitations, data reduction and analysis, and some caveats. A description of the FITS structure of spectral files and parameter catalogs is also provided.

关键词： techniques: spectroscopic survey—data release—catalog