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The FAST all sky HI survey(FASHI):The first release of catalog

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Science China(Physics,Mechanics & Astronomy) 2024年第1期67卷 112-133页

作者： Chuan-Peng Zhang Ming Zhu Peng Jiang Cheng Cheng Jing Wang Jie Wang Jin-Long Xu Xiao-Lan liu Nai-Ping Yu Lei Qian Haiyang Yu mei Ai Yingjie Jing Chen Xu Ziming liu Xin Guan Chun Sun Qingliang Yang Menglin Huang Qiaoli Hao FAST Collaboration Guizhou Radio Astronomical Observatory Guizhou UniversityGuiyang 550000China National Astronomical Observatories Chinese Academy of Sciences(CAS)Beijing 100101China Chinese Academy of Sciences South America Center for Astronomy National Astronomical ObservatoriesCASBeijing 100101China Kavli Institute for Astronomy and Astrophysics Peking UniversityBeijing 100871China

The FAST All Sky HI survey(FASHI)was designed to cover the entire sky observable by the Five-hundred-meter Aperture Spherical radio Telescope(FAST),spanning approximately 22000 square degrees of declination between-14°and+66°,and in the frequency range of 1050-1450 MHz,with the expectation of eventually detecting more than 100000 HI *** August 2020 and June 2023,FASHI had covered more than 7600 square degrees,which is approximately 35%of the total sky observable by *** has a median detection sensitivity of around 0.76 m Jy beam-1and a spectral line velocity resolution of~6.4 km s-1at a frequency of~1.4 *** of now,a total of 41741 extragalactic HI sources have been detected in the frequency range 1305.5-1419.5 MHz,corresponding to a redshift limit of z■*** cross-matching FASHI sources with the Siena Galaxy Atlas(SGA)and the Sloan Digital Sky Survey(SDSS)catalogs,we found that 16972(40.7%)sources have spectroscopic redshifts and 10975(26.3%)sources have only photometric *** of the remaining 13794(33.0%)HI sources are located in the direction of the Galactic plane,making their optical counterparts difficult to identify due to high extinction or high contamination of Galactic stellar *** on current survey results,the FASHI survey is an unprecedented blind extragalactic H I *** has higher spectral and spatial resolution and broader coverage than the Arecibo Legacy Fast ALFA Survey(ALFALFA).When completed,FASHI will provide the largest extragalactic HI catalog and an objective view of HI content and large-scale structure in the local universe.

关键词： surveys redshifts galaxies telescope radio lines HI line

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The evolution of stellar metallicity gradients of the Milky Way disk from LSS-GAC main sequence turn-off stars: a two-phase disk formation history?

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Research in Astronomy and Astrophysics 2015年第8期15卷 1209-1239页

作者： Mao-Sheng Xiang Xiao-Wei liu Hai-Bo Yuan Yang Huang Chun Wang Juan-Juan Ren Bing-qiu Chen Ning-Chen Sun Hua-Wei Zhang Zhi-Ying Huo Alberto Rebassa-Mansergas Department of Astronomy Peking University Kavli Institute for Astronomy and Astrophysics Peking University National Astronomical Observatories Chinese Academy of Sciences

Accurate measurements of stellar metallicity gradients in the radial and vertical directions of the disk and their temporal variations provide important constraints on the formation and evolution of the Milky Way disk. We use 297 042 main sequence turn-off stars selected from the LAMOST Spectroscopic Survey of the Galactic Anticenter（LSS-GAC） to determine the radial and vertical gradients of stellar metallicity,△[Fe/H]/△R and △[Fe/H]/△｜Z ｜ of the Milky Way disk in the direction of the anticenter. We determine ages of those turn-off stars by isochrone fitting and measure the temporal variations of metallicity gradients. We have carried out a detailed analysis of the selection effects resulting from the selection, observation and data reduction of LSS-GAC targets and the potential biases of a magnitude limited sample on the determinations of metallicity gradients. Our results show that the gradients, both in the radial and vertical directions, exhibit significant spatial and temporal variations. The radial gradients yielded by stars with the oldest ages（ 11 Gyr） are essentially zero at all heights from the disk midplane, while those given by younger stars are always negative. The vertical gradients deduced from stars with the oldest ages（ 11 Gyr）are negative and only show very weak variations with Galactocentric distance in the disk plane, R, while those yielded by younger stars show strong variations with *** being essentially flat at the earliest epochs of disk formation, the radial gradients steepen as age decreases, reaching a maximum（steepest） at age 7–8 Gyr, and then they flatten again. Similar temporal trends are also found for the vertical gradients. We infer that the assembly of the Milky Way disk may have experienced at least two distinct phases. The earlier phase is probably related to a slow, pressure-supported collapse of gas, when the gas settles down to the disk mainly in the vertical direction. In the later phase, there are significant radial flows

关键词： Galaxy: abundances—Galaxy: disk—Galaxy: evolution – Galaxy: formation—techniques: spectroscopic

Construction, expression and characterization of the engineered antibody against tumor surface antigen, p185c-erbB-2

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Cell Research 2003年第1期13卷 35-48页

作者： LIAN SHENG CHENG, AI PING liu, JIA HONG YANG, YAN qiu DONG, LIANG WEI LI, JING WANG, CHAO CHEN WANG, JING liuSchool of Life Science, University of Science and Technology of China, Hefei 230027, China 1School of Life Science University of Science and Technology of China Hefei 230027 China 1School of Life Science University of Science and Technology of China Hefei 230027 China 1School of Life Science University of Science and Technology of China Hefei 230027 China 1School of Life Science University of Science and Technology of China Hefei 230027 China 1School of Life Science University of Science and Technology of China Hefei 230027 China 1School of Life Science University of Science and Technology of China Hefei 230027 China 1School of Life Science University of Science and Technology of China Hefei 230027 China 1School of Life Science University of Science and Technology of China Hefei 230027 China

The c-erbB-2 proto-oncogene encodes a 185kDa protein p!85, which belongs to epidermal growth factor receptor family. Amplification of this gene has been shown to correlate with poor clinical prognosis for certain cancer patients. The monoclonal antibody A21 which directed against p185 specifically inhibits proliferation of tumor cells overexpressing p185, hence allows it to be a candidate for targeted therapy. In order to overcome several drawbacks of murine MAb, we cloned its VH and VL genes and constructed the single-chain Fv (scFv) through a peptide linker. The recombinant scFvA21 was expressed in Escherichia coli and purified by the affinity column. Subsequently it was characterized by ELISA, Western blot, cell immunohistochemistry and FACS. All these assays showed the binding activity to extracellular domain (ECD) of p!85. Based on those properties of scFvA21, we further constructed the scFv-Fc fusion molecule with a homodimer form and the recombinant product was expressed in mammalian cells. In a

关键词： p185 c-erbB-2 scFv scFv-Fc.

Identification of novel PKD1 mutations in two Chinese families with autosomal dominant polycystic kidney disease by targeted next generation sequencing

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Chinese Medical Journal 2020年第6期133卷 738-740页

作者： Qun liu Jun-Xia Ruan Jing-Shu Zhang Lu-Lu Zhang Guang-Rong qiu Department of Medical Genetics School of Life SciencesChina Medical UniversityShenyangLiaoning 110122China Dalian Municipal Women and Children's Medical Center DalianLiaoning 116037China

To the Editor:Autosomal dominant polycystic kidney disease(ADPKD)is a common inherited kidney disease with an estimated incidence of 1 in 400 to 1 in 1000.[1] It is a late-onset systemic disorder characterized by the development and progressive enlargement of cysts in the kidney,eventually leading to end-stage renal disease.[2] Previous studies have shown that ADPKD is a heterogeneous monogenic disorder resulting from mutations in two genes:PKD1 and *** data showed that PKD1 and PKD2 mutations account for 85% and 15% of ADPKD cases,respectively.[3]

关键词： PKD1 kidney Clinical

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关于现代正颌外科学发展的一些思考

上海交通大学学报（医学版） 2020年第10期40卷 1315-1317页

作者：邱蔚六上海交通大学医学院附属第九人民医院·口腔医学院口腔颌面外科国家口腔疾病临床医学研究中心上海200011

该文就现代正颌外科的发展和理念作了四方面的论述:现代正颌外科学必须有口腔正畸专家的参与;现代正颌外科学科整合面广,涉及学科多;正颌外科、颅面外科、颅颌面外科各有特色;正颌外科与颅面外科能否成为一家。

关键词：正颌外科颅面外科颅颌面外科整合医学

A NEW FORMULA FOR COMPUTING DIFFUSION COEFFICIENT OF GASES

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Chinese Science Bulletin 1989年第16期34卷 1405-1406页

作者：陈昭宜刘蕊梅 Hunan University Changsha

In view of inaccuracy, limitations and computation complexity of the present empirical formulas in computing diffusion coefficient of binary gas in normal atmosphere, this letter proposes a new formula for computing d... 详细信息

关键词： letter Polar limitations empirical formulas stands boiling mentioned eaning

农业资源高效集约利用是贵州喀斯特地区农业持续发展的根本途径

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经济地理 2000年第4期20卷 81-84页

作者：蔡秋陈梅琳贵州科学院山地资源研究所中国贵州贵阳550001

贵州是我国贫困人口集中 ,贫困面积大 ,贫困程度深的省份之一。由于喀斯特生态环境特点和历史原因 ,人均耕地面积小 ,水资源利用率低 ,农业单产水平低下 ,土地利用不充分 ,生态系统稳定性差。如果仍保持目前的资源利用效率 ,要保持今后... 详细信息

贵州是我国贫困人口集中 ,贫困面积大 ,贫困程度深的省份之一。由于喀斯特生态环境特点和历史原因 ,人均耕地面积小 ,水资源利用率低 ,农业单产水平低下 ,土地利用不充分 ,生态系统稳定性差。如果仍保持目前的资源利用效率 ,要保持今后经济的持续发展和改善不断增长的人口的生存和发展条件是不可能的。根据贵州省省情 ,应走资源高效集约利用的道路 ,农业资源高效集约利用的主要途径是 :①以提高土地生产能力为核心的土地资源的高效利用 ;②以集水和节水为主的水资源的高效利用 ;③以农业产业化为核心的增加农业资源利用效益 ;④以农业资源的合理配置为核心的资源持续利用。

关键词：喀斯特农业资源贵州农业发展资源利用

Analysis of generation factors for tectonic deformation in the Xigeda formation in southwestern China

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Engineering Sciences 2012年第1期10卷 8-13页

作者： Li Ping liu Xingsong Yang mei'e Yuan Jingli Institute of Geology China Earthquake AdministrationBeijing 100029China

The Xigeda formation is a set of interbreds comprised of halfconsolidated silt,fine sand and clay with clear lamination and total thickness of 300 *** is dated to be the early Pleistocene and widespread distributed on the Quaternary planes of denudation and *** formation has particular tectonic deformation as expressed by deformed belts confined to certain locations,which extend linearly over long *** also manifests itself as graben and horst sequences where fault planes are very *** deformation styles,such as horizontal,vertical and oblique dislocations,normal,reverse and thrust faulting resulted in tilts of small blocks in different *** clay beds are intruded by underlying sand *** ridges and depressions characterize the *** phenomena of deformation are probably the result of intensive vibration of soil bodies during major earthquakes which caused instantaneous shear,compression and *** analysis of generation factors for such tectonic deformation provides a new approach for determination of areas with seismic risks,assessment of earthquake intensity and research of earthquake mechanisms.

关键词： earthquake tectonic deformation Xigeda formation

SYNTHESIS　AND　STRUCTURE　OF　A　2D　SHEET－LIKE　COPPER（II）　COMPLEX　WITH　BRIDGING　PYRIDINE－4－CARBOXYLATE　AND　TRANS－OXAMIDATE　LIGANDS

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Chinese Chemical Letters 1994年第8期5卷 711-712页

作者： mei Fang Wu Zhong Ning CHAN Jun qiu and Wen Xia TANG(State Key Laboratory of Coordination Chemistry,Nanjing University. Nanjing 210008)Zhe Ming WANG Shi Xiong liu and Jin Ling HUANG(Center Laboratory, Fuzhou University, Fuzhou 350002)

A complex polymer [Cu2(oxen)(pic)(H20)]n(Clo4)·2nHH2O, there oxen and pic are N.N' -bis(2aminoethyt )oxamide and Pyridine-4-carboxytate, respectivety, was synthesized. It crystallizes in the monoctinic space group P21/c, with a=10.420(2) A. b=13. 118(2) A, c=14 .863(5) A. β=93.05(2)°, and z=4. The structure of this complex consists of 2D network of copper(II) ions bridged by bis-tridentate oxen in transconformation, and by pyridine-4-carboxylate in which the pyridine ring acts as a monodentate group whereas the carboxylate as a tridentate group and bonds to three different copper centres in a novel fashion. The repeating asymmetric unit is a binuclear copper(II) fragment with one of the copper centre locating in a lengthening octahedrat environment, whereas the other in a distorted tetragonal pyramid geometry.

关键词： II COPPER COMPLEX LIKE WITH AND BRIDGING