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| 1 | Genesis of the Bangbu Orogenic Gold Deposit, Tibet: Evidence from Fluid Inclusion, Stable Isotopes, and Ar-Ar Geochronology显示文摘The Bangbu gold deposit is a large orogenic gold deposit in Tibet formed during the AlpineHimalayan collision. Ore bodies(auriferous quartz veins) are controlled by the E-W-trending Qusong-Cuogu-Zhemulang brittle-ductile shear zone. Quartz veins at the deposit can be divided into three types: pre-metallogenic hook-like quartz veins, metallogenic auriferous quartz veins, and postmetallogenic N-S quartz veins. Four stages of mineralization in the auriferous quartz veins have been identified:(1) Stage S1 quartz+coarse-grained sulfides,(2) Stage S2 gold+fine-grained sulfides,(3) Stage S3 quartz+carbonates, and(4) Stage S4 quartz+ greigite. Fluid inclusions indicate the oreforming fluid was CO_2-N_2-CH_4 rich with homogenization temperatures of 170–261°C, salinities 4.34–7.45 wt% Na Cl equivalent. δ^(18)Ofluid(3.98‰–7.18‰) and low δDV-SMOW(-90‰ to-44‰) for auriferous quartz veins suggest ore-forming fluids were mainly metamorphic in origin, with some addition of organic matter. Quartz vein pyrite has δ^(34)SV-CDT values of 1.2‰–3.6‰(an average of 2.2‰), whereas pyrite from phyllite has δ^(34)SV-CDT 5.7‰–9.9‰(an average of 7.4‰). Quartz vein pyrites yield 206Pb/204 Pb ratios of 18.662–18.764, 207Pb/204 Pb 15.650–15.683, and ^(208)Pb/204 Pb 38.901–39.079. These isotopic data indicate Bangbu ore-forming materials were probably derived from the Langjiexue accretionary wedge. 40Ar/39 Ar ages for sericite from auriferous sulfide-quartz veins yield a plateau age of 49.52 ± 0.52 Ma, an isochron age of 50.3 ± 0.31 Ma, suggesting that auriferous veins were formed during the main collisional period of the Tibet-Himalayan orogen(~65–41 Ma). | PEI Yingru SUN Qingzhong ZHENG Yuanchuan YANG Zhusen LI Wei HUANG Kexian | 2016 | Acta Geologica Sinica(English Edition)2016，90，2： | 12 |
| 2 | A Deep Double-Channel Dense Network for Hyperspectral Image Classifica-tion显示文摘Hyperspectral Image(HSI)classification based on deep learning has been an attractive area in recent years.However,as a kind of data-driven algorithm,the deep learning method usually requires numerous computational resources and high-quality labelled datasets,while the expenditures of high-performance computing and data annotation are expensive.In this paper,to reduce the dependence on massive calculation and labelled samples,we propose a deep Double-Channel dense network(DDCD)for Hyperspectral Image Classification.Specifically,we design a 3D Double-Channel dense layer to capture the local and global features of the input.And we propose a Linear Attention Mechanism that is approximate to dot-product attention with much less memory and computational costs.The number of parameters and the consumptions of calculation are observably less than contrapositive deep learning methods,which means DDCD owns simpler architecture and higher efficiency.A series of quantitative experiences on 6 widely used hyperspectral datasets show that the proposed DDCD obtains state-of-the-art performance,even though when the absence of labelled samples is severe. | Kexian WANG Shunyi ZHENG Rui LI Li GUI | 2021 | Journal of Geodesy and Geoinformation Science2021，4，4： | 11 |
| 3 | Kinetics on leaching rare earth from the weathered crust elution-deposited rare earth ores with ammonium sulfate solution显示文摘 | Tian Jun Yin Jingqun Chi Ruan Rao Guohua Jiang Mintao Ouyang Kexian | 2010 | Hydrometallurgy2010，，3： | 2 |
| 4 | Biotransformation of steroidal saponins in sisal (Agave sisalana Perrine) to tigogenin by a newly isolated strain from a karst area of Guilin, China显示文摘 | Yanchao Wang Xia Li Hao Sun Kexian Yi Jinlong Zheng Jie Zhang Zaibin Hao | 2014 | Biotechnology & Biotechnological Equipment2014，，6： | 1 |
| 5 | Trees with the seven smallest and eight greatest Harary i ndices显示文摘 | Xu Kexian | 2012 | Discrete Appl Math2012，，160： | 1 |
| 6 | Determination of melamine in dairy products by HILIC-UV with NH2 column显示文摘 | ZHENG Xiaolin YU Bingsheng LI Kexian | | 0，，01： | 1 |
| 7 | Determina- tion of melamine in dairy products by HILIC-UV with NH2 column显示文摘 | Zheng Xiaolin Yu Bingsheng Li Kexian | 2012 | Food Control2012，23，1： | 1 |
| 8 | Robust cardiomyocyte differentiation from human pluripotent stem cells via temporal modulation of canonical Wnt signaling显示文摘 | Xiaojun Lian Cheston Hsiao Gisela Wilson Kexian Zhu Laurie B. Hazeltine Samira M. Azarin Kunil K. Raval Jianhua Zhang Timothy J. Kamp Sean P. Palecek | 2012 | Proceedings of the National Academy of Sciences2012，，27： | 1 |
| 9 | Recent progress in studies on polarity of ionic liquids显示文摘Although many ionic liquids have been reported, their polarity is not completely understood. Different empirical polarity scales for molecular solvents always lead to different polarity orders when they are applied on ionic liquids. Based on a literature survey, this review summarizes the recent polarity scales of ionic liquids according to the following 4 classes:(1) equilibrium and kinetic rate constants of chemical reactions;(2) empirical polar parameters of ionic liquids;(3) spectral properties of probe molecules;(4) multiparameter approaches. In addition, their interrelations are presented. A systematic understanding of the relationship between different polarity parameters of ionic liquids is of great importance for finding a universal set of parameters that can be used to predict the polarities of ionic liquids quantitatively. The potential utilization of the electron paramagnetic resonance in this field is also addressed. | Xinyu Wang Kexian Chen Jia Yao Haoran Li | 2016 | Science China Chemistry2016，59，5： | 1 |
| 10 | Robust cardiomyocyte differentiation from human pluripotent stem cells via temporal modulation of canonical Wnt signaling显示文摘 | Xiaojun Lian Cheston Hsiao Gisela Wilson Kexian Zhu Laurie B. Hazeltine Samira M. Azarin Kunil K. Raval Jianhua Zhang Timothy J. Kamp Sean P. Palecek | 2012 | Proceedings of the National Academy of Sciences2012，，： | 1 |
| 11 | Insulin Inhibits Cardiac Mesoderm, Not Mesendoderm, Formation During Cardiac Differentiation of Human Pluripotent Stem Cells and Modulation of Canonical Wnt Signaling Can Rescue This Inhibition显示文摘 | Xiaojun Lian Jianhua Zhang Kexian Zhu Timothy J. Kamp Sean P. Palecek | 2013 | STEM CELLS2013，，3： | 1 |
| 12 | Disaster Investigation for August 20^th,2019 Sanya M4.2 Earthquake in Hainan,China显示文摘On August 20th,2019,a M4.2 earthquake occurred near Zhanan and Lixin Village,Tianya District,Sanya City,Hainan Province. We conduct field investigations in the vicinity of the epicenter which includes 25 natural villages based on the data provided by local government and finally complete the map of the earthquake intensity.Through the analysis of the houses and cracks in the earthquake area,the structure types and crack characteristics of the houses are basically unveiled. Furthermore,suggestions for earthquake disaster reduction in study area are obtained from the investigation. | JIA Wei WU Tiesheng ZHENG Kexian WANG Zhicheng LIN Zhen HU Jinqiao XU Xiaofeng LI Zhixiong WU Xiaojiang | 2020 | Earthquake Research in China2020，34，2： | 0 |
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