检索结果-南通市图书馆

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

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

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

lijiang 2.4-meter Telescope and its instruments

引用

Research in Astronomy and Astrophysics 2019年第10期19卷 95-108页

作者： Chuan-jun Wang jin-Ming Bai Yu-Feng Fan Ji-Rong Mao liang Chang Yu-Xin Xin Ju-Jia Zhang Bao-li Lun Jian-guo Wang Xi-liang Zhang Mei ying Kai-Xing Lu Xiao-li Wang Kai-Fan Ji Ding-Rong Xiong Xiao-Guang Yu xu Ding Kai Ye li-Feng Xing Wei-Min yi liang xu Xiang-Ming Zheng Yuan-jie Feng Shou-sheng He xue-li Wang Zhong liu Dong Chen jun xu Song-Nian Qin Rui-Long Zhang Hui-Song Tan Zhi li Ke Lou Jian li Wei-Wei liu Yunnan Observatories Chinese Academy of SciencesKunming 650216China Key Laboratory for the Structure and Evolution of Celestial Objects Chinese Academy of Sciences Kunming 650216 China Center for Astronomical Mega-Science Chinese Academy of Sciences Beijing 100101 China University of Chinese Academy of Sciences Beijing 100049 China Astrophysics Center of Guangzhou University Guangzhou 510006China

The lijiang 2.4-meter Telescope(LJT), the largest common-purpose optical telescope in China,has been available to the worldwide astronomical community since 2008. It is located at the Gaomeigu site,lijiang Observatory(LJO), in the southwest of China. The site has very good observational *** its 10-year operation, several instruments have been equipped on the LJT. Astronomers can perform both photometric and spectral observations. The main scientific goals of LJT include recording photometric and spectral evolution of supernovae, reverberation mapping of active galactic nuclei, investigating the physical properties of binary stars and near-earth objects(comets and asteroids), and identification of exoplanets and all kinds of transients. Until now, the masses of 41 high accretion rate black holes have been measured, and more than 168 supernovae have been identified by the LJT. More than 190 papers related to the LJT have been published. In this paper, the general observation conditions of the Gaomeigu site is introduced at first. Then, the structure of the LJT is described in detail, including the optical, mechanical, motion and control system. The specification of all the instruments and some detailed parameters of the YFOSC is also presented. Finally, some important scientific results and future expectations are summarized.

关键词： telescopes lijiang 2.4-m Telescope-instrumentation photometers-instrumentation spectrographs

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

Efficacy and safety of Shenyankangfu Tablet,a Chinese patent medicine,for primary glomerulonephritis:A multicenter randomized controlled trial

引用

Journal of Integrative Medicine 2021年第2期19卷 111-119页

作者： jie Wu Shu-wei Duan Hong-tao yang Yue-yi Deng Wei li Ya-ni He Zhao-hui Ni Yong-li Zhan Shan lin Zhi-yong guo jun Zhu jing-ai Fang xu-sheng liu li-hua Wang Rong Wang Nian-song Wang Xiao-hong Cheng li-qun He Ping Luo Shi-ren Sun Ji-feng Sun Ai-ping yin Geng-ru Jiang Hong-yu Chen wen-hu liu Hong-li lin Meng liang Lu Ma Ming Chen li-qun Song Jian Chen Qing Zhu Chang-ying Xing Yun li Ji-ning Gao Rong-shan li ying li Hao Zhang ying Lu Qiao-ling Zhou jun-zhou Fu Qiang He Guang-yan Cai Xiang-mei Chen Department of Nephrology Chinese People’s Liberation Army General HospitalChinese People’s Liberation Army Institute of NephrologyState Key Laboratory of Kidney Diseases(2011DAV00088)National Clinical Research Center for Kidney DiseasesBeijing 100853China Department of Nephrology First Teaching Hospital of Tianjin University of Traditional Chinese MedicineTianjin 300192China Department of Nephrology Longhua HospitalShanghai University of Traditional Chinese MedicineShanghai 200032China Department of Nephrology Shandong University of Traditional Chinese Medicine Affiliated HospitalJinan 250011.Shandong ProvinceChina Department of Nephrology Daping HospitalArmy Medical UniversityChongqing 400042China Department of Nephrology Renji HospitalShanghai Jiao Tong UniversityShanghai 200127China Department of Nephrology Guang’anmen HospitalChina Academy of Traditional Chinese Medical SciencesBeijing 100053China Department of Nephrology Tianjin Medical University General HospitalTianjin 300052China Department of Nephrology Changhai Hospital of ShanghaiNaval Medical UniversityShanghai 200433China Department of Nephrology West China HospitalChengdu 610083Sichuan ProvinceChina Department of Nephrology First Affiliated Hospital of Shanxi Medical UniversityTaiyuan 030001Shanxi ProvinceChina Department of Nephrology Guangdong Provincial Hospital of Chinese MedicineGuangzhou 510120Guangdong ProvinceChina Department of Nephrology Shanxi Medical University Second Affiliated HospitalTaiyuan 030001Shanxi ProvinceChina Department of Nephrology Shandong Provincial HospitalJinan 250021Shandong ProvinceChina Department of Nephrology and Rheumatology Affiliated Sixth People’s HospitalShanghai Jiao Tong UniversityShanghai 200233China Department of Nephrology Shaanxi Traditional Chinese Medicine HospitalXi'an 710003Shaanxi ProvinceChina Department of Nephrology Shuguang HospitalShanghai University of Traditional Chinese MedicineShanghai 200021China Department of Nephrology Jilin University Se

Background:Shenyankangfu Tablet(SYKFT)is a Chinese patent medicine that has been used widely to decrease proteinuria and the progression of chronic kidney ***:This trial compared the efficacy and safety of SYKFT,for the control of proteinuria in primary glomerulonephritis patients,against the standard drug,losartan ***,setting,participants and intervention:This was a multicenter,double-blind,randomized,controlled clinical *** glomerulonephritis patients,aged 18-70 years,with blood pressure≤140/90 mmHg,estimated glomerular filtration rate(eGFR)>45 mL/min per 1.73 ㎡,and 24-hour proteinuria level of 0.5-3.0 g,were recruited in 41 hospitals across 19 provinces in China and were randomly divided into five groups:SYKFT,losartan potassium 50 mg or 100 mg,SYKFT plus losartan potassium 50 mg or 100 *** outcome measu res:The primary outcome was change in the 24-hour proteinuria level,after 48 weeks of ***:A total of 735 participants were *** percent decline of urine protein quantification in the SYKFT group after 48 weeks was 8.78%±2.56%(P=0.006)more than that in the losartan 50 mg group,which was 0.51%±2.54%(P=1.000)less than that in the losartan 100 mg *** with the losartan potassium 50 mg group,the SYKFT plus losartan potassium 50 mg group had a 13.39%±2.49%(Pline did not change statistically *** average change in TCM syndrome score between the patients who took SYKFT(-3.00[-6.00,-2.00])and who did not take SYKFT(-2.00[-5.00,0])was statistically significant(P=0.003).No obvious adverse reactions were observed in any ***:SYKFT decreased the proteinur

关键词： Herbal medicine,Chinese Shenyankangfu Tablet Primary glomerulonephritis Randomized controlled trial Double blind Double dummy

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

Advances in nuclear detection and readout techniques

引用

Nuclear Science and Techniques 2023年第12期34卷 281-358页

作者： Rui He Xiao‑yang Niu yi Wang Hong‑Wei liang Hong‑Bang liu Ye Tian Hong‑lin Zhang Chao‑jie Zou Zhi‑yi liu Yun‑Long Zhang Hai‑Bo yang Ju Huang Hong‑Kai Wang Wei‑Jia Han Bei Cao Gang Chen Cong Dai li‑Min Duan Rui‑Rui Fan Fang‑Fa Fu Jian‑Hua guo Dong Han Wei Jiang Xian‑Qin li Xin li Zhuo‑Dai li Yu‑Tie liang Shun liao De‑xu lin Cheng‑Ming liu guo‑Rui liu jun‑Tao liu Ze Long Meng‑Chen Niu Hao Qiu Hu Ran Xiang‑Ming Sun Bo‑Tan Wang Jia Wang jin‑Xiang Wang Qi‑lin Wang Yong‑sheng Wang Xiao‑Chuan Xia Hao‑Qing Xie He‑Run yang Hong yin Hong Yuan Chun‑Hui Zhang Rui‑Guang Zhao Ran Zheng Cheng‑Xin Zhao Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China Advanced Energy Science and Technology Guangdong Laboratory Huizhou 516000China Key Laboratory of Particle and Radiation Imaging Department of Engineering PhysicsTsinghua UniversityBeijing 100084China School of Integrated Circuits Dalian University of TechnologyDalian 116020China Guangxi Key Laboratory for Relativistic Astrophysics School of Physical Science and TechnologyGuangxi UniversityNanning 530004China School of Nuclear Science and Technology Lanzhou UniversityLanzhou 730000China State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Department of Radiation Oncology National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China Electronic Engineering School Heilongjiang UniversityHarbin 150080China Spallation Neutron Source Science Center Dongguan 523803China Micro‑electronic Department Harbin Institute of TechnologyHarbin 150001China Purple Mountain Observatory Chinese Academy of SciencesNanjing 210034China liaoning Academy of Materials Shenyang 110167China Istituto Nazionale di Fisica Nucleare Sezione di PerugiaPerugiaItaly School of Mathematics and Physics Chengdu University of TechnologyChengdu 620035China PLAC Key Laboratory of Quark and Lepton Physics(MOE)Central China Normal UniversityWuhan 430079China School of Electronics and Information Northwestern Polytechnical UniversityXi’an 710129China State Key Lab of Superhard Materials College of PhysicsJilin UniversityChangchun 130012China School of Computer Science Northwestern Polytechnical UniversityXi’an 710129China

“A Craftsman Must Sharpen His Tools to Do His Job,”said *** detection and readout techniques are the foundation of particle physics,nuclear physics,and particle astrophysics to reveal the nature of the ***,they are being increasingly used in other disciplines like nuclear power generation,life sciences,environmental sciences,medical sciences,*** article reviews the short history,recent development,and trend of nuclear detection and readout techniques,covering Semiconductor Detector,Gaseous Detector,Scintillation Detector,Cherenkov Detector,Transition Radiation Detector,and Readout *** explaining the principle and using examples,we hope to help the interested reader underst and this research field and bring exciting information to the community.

关键词： Silicon detector Wide bandgap detector Time projection chamber(TPC) Multigap resistive plate chamber detector(MRPC) Scintillation detector Calorimeters Cherenkov detector Transition radiation detector Artificial intelligence Trigger-less readout

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

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

引用

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

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

The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST)

引用

Research in Astronomy and Astrophysics 2012年第9期12卷 1197-1242页

作者： Xiang-Qun Cui Yong-Heng Zhao Yao-Quan Chu guo-Ping li Qi li li-Ping Zhang Hong-jun Su Zheng-Qiu Yao Ya-Nan Wang Xiao-Zheng Xing Xin-Nan li Yong-Tian Zhu Gang Wang Bo-Zhong Gu A-li Luo Xin-Qi xu Zhen-Chao Zhang Gen-Rong liu Hao-Tong Zhang De-Hua yang Shu-Yun Cao Hai-Yuan Chen Jian-jun Chen Kun-Xin Chen ying Chen Jia-Ru Chu Lei Feng xue-Fei Gong Yong-Hui Hou Hong-Zhuan Hu Ning-sheng Hu Zhong-wen Hu Lei Jia Fang-Hua Jiang Xiang Jiang Zi-Bo Jiang Ge jin Ai-Hua li Yan li Ye-Ping li Guan-Qunliu Zhi-Gang liu Huo-Ming Shi Zheng-Hong Tang Qing-sheng Tao Xiang-Yan Yuan Chao Zhai jing Zhang Yan-Xia Zhang Yong Zhang Ming Zhao Fang Zhou guo-Hua Zhou jie Zhu Si-Cheng Zou National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 China yzhao @ *** Nanjing Institute of Astronomical Optics and Technology National Astronomical ObservatoriesChinese Academy of Sciences Nanjing 210042 China University of Science and Tecfinologyof China Hefei 230026 China Shanghai Astronomical Observatory Chinese Academy of Sciences Shanghai 200030 China Institute of Architecture Design and Research Chinese Academy of Sciences Beijing 100190China

The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST, also called the guo Shou jing Telescope) is a special reflecting Schmidt telescope. LAMOST’s special design allows both a large aperture (effective aperture of 3.6 m–4.9 m) and a wide field of view (FOV) (5°). It has an innovative active reflecting Schmidt configuration which continuously changes the mirror’s surface that adjusts during the observation process and combines thin deformable mirror active optics with segmented active optics. Its primary mirror (6.67m×6.05 m) and active Schmidt mirror (5.74m×4.40 m) are both segmented, and composed of 37 and 24 hexagonal sub-mirrors respectively. By using a parallel controllable fiber positioning technique, the focal surface of 1.75 m in diameter can accommodate 4000 optical fibers. Also, LAMOST has 16 spectrographs with 32 CCD cameras. LAMOST will be the telescope with the highest rate of spectral acquisition. As a national large scientific project, the LAMOST project was formally proposed in 1996, and approved by the Chinese government in 1997. The construction started in 2001, was completed in 2008 and passed the official acceptance in june 2009. The LAMOST pilot survey was started in October 2011 and the spectroscopic survey will launch in September 2012. Up to now, LAMOST has released more than 480 000 spectra of objects. LAMOST will make an important contribution to the study of the large-scale structure of the Universe, structure and evolution of the Galaxy, and cross-identification of multiwaveband properties in celestial objects.

关键词： techniques: wide field telescope - active optics - multi fiber - spectroscopy survey - data reduction

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

Long-term analysis of clear nights using satellite data considering astronomical sites in western China

引用

Research in Astronomy and Astrophysics 2020年第6期20卷 96-108页

作者： Zi-Huang Cao li-Yong liu Yong-Heng Zhao Lu Feng Hugh RAJones Huang Shen jin-Xin Hao Yan-jie xue Yong-Qiang Yao jing xu Ali Esamdin Zhao-Xiang Qi Jian-Rong Shi Jian li Yuan Tian Zheng Wang Tai-sheng Yan Xia Wang Jian-Ping Xiong Si-Cheng Yu jun-Bo Zhang Zhi-Xia Shen Yun-ying Jiang Jia yin Guang-Xin Pu Peng Wei Chun-Hai Bai guo-jie Feng Lu Ma Teng-Fei Song Jian-Feng Wang Jian-Feng Tian Xian-Qun Zeng Zhi-Gang Hou Shi-Long liao Zhi-Song Cao Dong-Wei Fan Yun-Fei xu Chang-Hua li yi-Han Tao National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Shanghai Astronomical Observatory Chinese Academy of SciencesShanghai 200030China Centre for Astrophysics University of HertfordshireHatfieldUK School of Journalism.Communication University of China Beijing 100024China Xinjiang Astronomical Observatory Chinese Academy of SciencesUrumqi 830011China Yunnan Observatories Chinese Academy of SciencesKunming 650216China

A large ground-based optical/infrared telescope is being planned for a world-class astronomical site in *** cloud-free night percentage is the primary meteorological consideration for evaluating candidate *** data from GMS and NOAA satellites and the MODIS instrument were utilized in this research,covering the period from 1996 to *** data analysis benefits from overlapping results from different independent teams as well as a uniform analysis of selected sites using GMS+NOAA *** significant ground-based monitoring is needed to validate these findings,we identify three different geographical regions with a high percentage of cloud-free conditions(~83%on average),which is slightly lower than at Mauna Kea and Cerro Armazones(~85%on average)and were chosen for the large international projects TMT and ELT *** study finds evidence that cloud distributions and the seasonal changes affected by the prevailing westerly winds and summer monsoons reduce the cloud cover in areas influenced by the *** is consistent with the expectations from climate change models and is suggestive that most of the identified sites will have reduced cloud cover in the future.

关键词： methods statistical-site testing-atmospheric effects-MODIS

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

由超拍电子伏特加速器产生的超高能伽马射线气泡

引用

Science Bulletin 2024年第4期69卷 449-457页

作者： LHAASO Collaboration Zhen Cao Chuandong Gao Cong li Ruo-Yu liu Ruizhi yang 不详 Key Laboratory of Particle Astrophyics&Experimental Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China TIANFU Cosmic Ray Research Center ChengduChina Institute of Frontier and Interdisciplinary Science Shandong UniversityQingdao 266237China School of Astronomy and Space Science Nanjing UniversityNanjing 210023China University of Science and Technology of China Hefei 230026China

We report the detection of aγ-ray bubble spanning at least 100deg2 in ultra-high energy(UHE)up to a few PeV in the direction of the star-forming region Cygnus X,implying the presence super PeVatron(s)accelerating protons to at least 10 PeV.A log-parabola form with the photon indexΓ(E)=(2.71±0.02)+(0.11±0.02)×log10(E/10 TeV)is found fitting the gamma-ray energy spectrum of the bubble *** sources,“hot spots”correlated with very massive molecular clouds,and a quasi-spherical amorphousγ-ray emitter with a sharp central brightening are observed in the *** the core of~0.5°,spatially associating with a region containing massive OB association(Cygnus OB2)and a microquasar(Cygnus X-3),as well as previously reported multi-TeV sources,an enhanced concentration of UHEγ-rays is observed with 2 photons at energies above 1 *** general feature of the bubble,the morphology,and the energy spectrum,are reasonably reproduced by the assumption of a particle accelerator in the core,continuously injecting protons into the ambient medium.

关键词： Cosmic rays γ-rays Interstellar medium Star cluster

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

Bedaquiline-containing regimens in patients with pulmonary multidrug-resistant tuberculosis in China:focus on the safety

引用

Infectious Diseases of Poverty 2021年第2期10卷 75-76页

作者： jing-Tao Gao Juan Du Gui-Hui Wu yi Pei Meng-Qiu Gao Leonardo Martinez lin Fan Wei Chen li Xie Yu Chen Hua Wang Long jin guo-Bao li Pei-Lan Zong Yu Xiong Qian-Hong Wu Ming-Wu li Xiao-Feng Yan Yan-Fang Miao Qing-Shan Cai Xin-jie li Da-Peng Bai Shu-jun Geng guo-li yang Pei-junTang yi Zeng Xiao-Hong Chen Tong-Xia li Cui Cai Yun Zhou Ma Zhuo Jian-Yun Wang wen-Long Guan lin xu Ji-Chan Shi Wei Shu li-li Cheng FeiTeng Yu-Jia Ning Shi-Heng Xie Yu-Xian Sun li-jie Zhang Yu-Hong liu Clinical Center on TB Beijing Chest HospitalCapital Medical University/Beijing Tuberculosis and Thoracic Tum or Research InstituteNo 9Beiguan StreetTongzhou DistrictBeijing 101149Peopled Republic of China 不详

Background:World Health Organization recommends countries introducing new drug and short treatment regimen for drug resistant tuberculosis(DR-TB)should develop and implement a system for active pharmacovigilance that allows for detection,reporting and management of adverse *** aim of the study is to evaluate the frequency and severity of adverse events(AEs)of bedaquiline-containing regimen in a cohort of Chinese patients with multidrug-resistant(MDR)/extensively drug-resistant(XDR)-TB based on active drug safety monitoring(aDSM)system of New Drug Introduction and Protection Program(NDIP).

关键词： Tuberculosis Multidrug-resistant Bedaquiline Safety Surveillance program China

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

Data release of the LAMOST pilot survey

引用

Research in Astronomy and Astrophysics 2012年第9期12卷 1243-1246页

作者： A-li Luo Hao-Tong Zhang Yong-Heng Zhao Gang Zhao Xiang-Qun Cui guo-Ping li Yao-Quan Chu Jian-Rong Shi Gang Wang Jian-Nan Zhang Zhong-Rui Bai Xiao-Yan Chen Feng-Fei Wang Yan-Xin guo Jian-jun Chen Bing Du Xiao Kong Ya-Juan Lei yin-Bi li yi-Han Song Yue Wu Yan-Xia Zhang Xin-lin Zhou Fang Zuo Peng Du lin He wen Hou yi-Qiao Dong Jian li Guang-Wei li Shuang li jing Song Yuan Tian Meng-Xin Wang Yong-Hui Hou Zhi-ying Huo Hong-Zhuan Hu Ning-sheng Hu Zhong-wen Hu Lei Jia Fang-Hua Jiang Xiang Jiang Zi-Bo Jiang Ge jin Ai-Hua li Qi li yin-Dun Mao Zheng-Hong Tang Qing-sheng Tao liang-Ping Tu Da-Qing Wang Dan Wang Jian-Ping Wang Lei Wang Shou-Guan Wang Shu-Qing Wang Ya-Nan Wang You Wang Yue-Fei Wang Ming-Zhi Wei Xiang-Xiang xue Xiao-Zheng Xing ling-Zhe xu Xin-Qi xu Yan xu De-Hua yang Shi-Hai yang Zheng-Qiu Yao Yong Yu Hui Yuan Chao Zhai En-Peng Zhang jing Zhang li-Ping Zhang WeiZhang Yong Zhang Zhen-Chao Zhang Ming Zhao Fang Zhou Yong-Tian Zhu jie Zhu Si-Cheng Zou National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 China lal @ lamost o rg Nanjing Institute of Astronomical Optics and Technology National Astronomical ObservatoriesChinese Academy of Sciences Nanjing 210042 China University of Science and Technologyof China Hefei 230026 China Shanghai Astronomical Observatory Chinese Academy of Sciences Shanghai 200030 China Institute of Architecture Design and Research Chinese Academy of Sciences Beijing 100190China

This paper describes the data release of the LAMOST pilot survey, which includes data reduction, calibration, spectral analysis, data products and data access. The accuracy of the released data and the information about the FITS headers of spectra are also introduced. The released data set includes 319 000 spectra and a catalog of these objects.

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

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：