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| 1 | Epitaxy of rare earth element fluorcarbonate minerals from carbonatite dyke at Bayan Obo, Inner Mongolia, China显示文摘Rare earth element fluorocarbonate minerals such as bastnaesite and parisite are firstly discovered in carbonatite dykes from Bayan Obo, Inner Mongolia, China. Bastnaesite rarely occurs as homogeneously single crystal, but contains microfine phase of parisite. They form regular intergrowth along (0001) plane net, which is identified as epitaxy. This eptactic texture results from the variation of chemical composition of crystallizing agents of those minerals that crystallize directly from carbonatite magma. | Xueming Yang Peishan Zhang Kejie Tao Xiaoyong Yang Shuangxi Chen Minglong Zou M. J. Le Bas R. N. Wilson R. Ranson L. S. Campbell et al. | 1998 | Chinese Science Bulletin1998,43,13: | 2 |
| 2 | An efficient approach to representing and mining knowledge from Qing court medical records显示文摘在 Qing 法庭上研究医药记录(RQCMR ) 是被第六合作者 Keji,陈和他的同事编辑并且注解的一本大卷的书,并且由帝国家庭的所有医药记录和 Qing 王朝的贵族组成。为了揭示并且利用他们的高度,在繁体中文药研究和现代临床的实践珍视两个,我们开发了转变 Qing 场的一个方法医药记录(QCMR ) 进一个机器可读的、结构化的代表,以便统计分析和数据采矿能精确地被执行。方法由框架本体论组成基于的医药语言,叫了 MedL 代表 QCMR,为编 MedL 框架进一个数据库的一个分析器,和一个探险模式采矿技术。与这个方法,全部 RQCMR 体积被转变成一个数据库,医药模式可以是从数据库的 mined。 | Weimin WANG Jingchun ZHANG Cong CAO Tao HOU Yue LIU Keji CHEN | 2011 | Frontiers of Computer Science2011,5,4: | 1 |
| 3 | Carbonatite dykes at bayan Obo, inner Mongolia, China显示文摘 | M. J. Bas J. Kellere Tao Kejie F. Wall C. T. William Zhang Peishan | 1992 | Mineralogy and Petrology1992,,3: | 1 |
| 4 | Carbonatite dykes at bayan Obo, inner Mongolia, China显示文摘 | M. J. Bas J. Kellere Tao Kejie F. Wall C. T. William Zhang Peishan | 1992 | Mineralogy and Petrology1992,,3: | 1 |
| 5 | Carbonatite dykes at bayan Obo, inner Mongolia, China显示文摘 | M. J. Bas J. Kellere Tao Kejie F. Wall C. T. William Zhang Peishan | 1992 | Mineralogy and Petrology1992,,3: | 1 |
| 6 | Carbonatite dykes at bayan Obo, inner Mongolia, China显示文摘 | M. J. Bas J. Kellere Tao Kejie F. Wall C. T. William Zhang Peishan | 1992 | Mineralogy and Petrology1992,,3: | 1 |
| 7 | Waterproof of rock joint with lead strip for splitting tuff sheet in ancient China quarrying caverns显示文摘This paper presents the relics of rock joints caulked with lead strips, unearthed by the authors in 2007 and 2008. The relics were in ancient quarry caverns in Shepan Island, Zhejiang Province, eastern China. The quarry activities were mainly carried out for production of regular tuff stone plates about 800 years ago. Each of the lead strips was sealed into a rock joint by punching manually and carefully. At present, the lead strips still contact tightly with the rock joints and new mineral cerussite is found to have formed at the contact surfaces between the lead strip and its caulked rock joint. The use of lead strips caulking rock joints in quarry caverns is found for prevention of water from seeping out of the country rocks into quarry cavern bases, where all of the in-situ intact tuff rock was manually and near-horizontally split into thin rock sheets one by one for production of regular tuff plates. Furthermore, it is found that the tensile splitting of tuff sheets at the cavern base required the intact rocks at the cavern base had to be dry. Through this horizontal base splitting for tuff sheets from the top to the bottom, a dome-shape interior space was formed for each rock cavern with the near horizontal imprints of thin sheet layers permanently on the sidewalls. | YANG ZhiFa ZHANG LuQing YUE ZhongQi ZHANG ZhongJian YANG TianYao LIN XianJian TAO KeJie ZHU JieWang | 2012 | Science China(Technological Sciences)2012,55,4: | 1 |
| 8 | Analysis of Conducted Disturbance via Current Transformer Due to Switch Operation of GIS Disconnector in UHV Substation显示文摘The characteristics of conducted disturbances via current transformer(CT)caused by switch operations in 1000 kV UHV substations are studied in this paper.Since the broadband circuit models might have limitations on the stability and accuracy for CT conducted disturbance simulation,a frequencydomain simulation method without circuit synthesis is proposed based on VFTC spectrum and CT transfer characteristics.To improve VFTC simulation accuracy,both the bushing radiation loss and frequency-dependent earth impedance are taken into consideration.Transfer characteristics of three types of windings for the 1000 kV GIS CT are ingeniously measured from a combination of fast and slow impulse tests.Through conducted disturbances simulations in UHV Wuhu substation,bushing radiation loss is found to have a suppression effect on the highfrequency response but the effect of frequency-dependent earth impedance can be ignored.As a result,the maximum amplitude of 84.5 A for the conducted disturbance is obtained,thus a fast damped oscillatory wave immunity test with no lower than Level 4 from IEC standard is suggested to test the anti-interference performance of the secondary equipment in UHV substation. | Jun Zhao Weijiang Chen Kejie Li Zihan Teng Ni Li Tao Wen Xing Fan | 2023 | CSEE Journal of Power and Energy Systems2023,9,3: | 0 |
| 9 | Effect of solvent on Se-modified ruthenium/carbon catalyst for oxygen reduction显示文摘Se-modified ruthenium supporting on carbon(Sex–Ru/C) electrocatalyst was prepared by solvothermal one-step synthesis method. The reaction mechanism was revealed after discussing impact of different solvents(i-propanol and EG) in solvotermal reaction. The result showed that the grain size of Se-modified ruthenium electrocatalyst was as small as 1 to 3 nm and highly dispersed on carbon surface. X-ray photoelectron spectroscopy(XPS) presented that selenium mainly existed in the catalyst in the form of elemental selenium and selenium oxides when the solvent was EG and i-propanol, respectively. The oxygen reduction reaction(ORR) performance was improved by appearance of selenium oxides. | Chuanxiang Zhang Haijun Tao Yuming Dai Xiancong He Kejie Zhang | 2014 | Progress in Natural Science:Materials International2014,24,6: | 0 |