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| 1 | Mineralization Styles and Genesis of the Yinkeng Au-Ag-Pb-Zn-Cu-Mn Polymetallic Orefield, Southern Jiangxi Province, SE China: Evidence from Geology, Fluid Inclusions, Isotopes and Chronology显示文摘The Yinkeng orefield in Yudu County, Jiangxi Province, SE China, is a zone of concentrated Au-Ag-Pb-Zn-Cu-Mn polymetallic ores. Based on summing up basic geology and ore geology of the orefield, the polymetallic deposits in the orefield have been divided into seven major substyles according to their occurring positions and control factors. The ore-forming fluid inclusion styles in the orefield include those of two-phase fluid, liquid CO2-bearing three-phase and daughter mineral-bearing multi-phase. The homogenization temperatures range from 382o to 122oC, falling into five clusters of 370o to 390o, 300o to 360o, 230o to 300o, 210o to 290o and 120o to 200o, and the clusters of 300o to 360o, 230o to 300o and 120o to 200o are three major mineralization stages, with fluid salinity peaks from 4.14% to 7.31%, 2.07% to 7.31% and 0.53% to 3.90%, respectively. The ore-forming fluids are mainly type of NaCl-H2O with medium to high density(0.74–1.02 g/cm3), or CO2-bearing NaCl-H2O with medium to low density(0.18–0.79 g/cm3). The fluid salinity and density both show a decline tendency with decreasing temperature. According to the measurement and calculation of Hand O-isotopic compositions in the quartz of the quartz-sulfide veins, δDV-SMOW of the ore-forming fluid is from-84‰ to-54‰, and δ18OV-SMOW of that is from 6.75‰ to 9.21‰, indicating a magmatic fluid. The δ34SV-CDT of sulfides in the ores fall into two groups, one is from-4.4‰ to 2.2‰ with average of-1.42‰, and the other from 18.8‰ to 21.6‰ with average of 19.8‰. The S-isotopic data shows one peak at-4.4‰ to 2.2‰(meaning-1.42‰) suggesting a simple magmatic sulfur source. The ore Pbisotopic ratios are 206Pb/204Pb from 17.817 to 17.983, 207Pb/204Pb from 15.470 to 15.620 and 208Pb/204Pb from 38.072 to 38.481, indicating characteristics of mantle-derived lead. The data show that the major ore deposits in the orefield have a magmatic-hydrothermal genesis and that the SHRIMP zircon age of the granodiorite porphyry, closely related to the mineralization, is 151.2±4.2 Ma(MSWD = 1.3), which can represent the formation ages of the ores and intrusion rocks. The study aids understanding of the ore-forming processes of the major metallic ore deposits in the orefield. | FENG Chengyou LI Daxin ZENG Zailin ZHANG Dequan SHE Hongquan | 2014 | Acta Geologica Sinica(English Edition)2014，88，3： | 14 |
| 2 | Chronology of the Tungsten Deposits in Southern Jiangxi Province, and Episodes and Zonation of the Regional W-Sn Mineralization-Evidence from High-precision Zircon U-Pb, Molybdenite Re-Os and Muscovite Ar-Ar Ages显示文摘Previous studies have obtained some petrogenetic and metallogenic chronological data with SHRIMP (sensitive high-resolution ion microprobe) zircon U-Pb, zircon LA-ICPMS (laser-ablation-inductively coupled plasma mass spectroscopy) U-Pb, molybdenite Re-Os isochron and muscovite Ar-Ar methods in southern Jiangxi Province and its adjacent areas. Based on these, the purpose of this paper is to study the petrogenetic and metallogenic ages and their time gap for different genetic types of W-Sn deposits, and thus to research their numerous episodes, zonal arrangement and their geodynamic background. The result shows that the large-scale W-Sn mineralization in southern Jiangxi Province occurred in the middle to late Jurassic (170-150 Ma), the skarn W-Sn-polymetallic deposits formed much earlier (170-161 Ma), and all of the wolframite-quartz vein type, greisen type, altered granite type and fractured zone type tungsten deposits formed in the late Jurassic (160-150 Ma). In one ore field or ore district, greisen type tungsten deposits formed earlier than quartz vein type ones hosted in the endoor exo-contact zone; and quartz vein type hosted in the endocontact zone formed earlier than that of exocontact zone. There is no significant time difference between tungstentin mineralization and its intimately associated parent granite emplacement (1-6 Ma). They all formed in the same rock-forming and ore-forming system and under the same geodynamic setting. Regionally, rock-forming and ore-forming processes of the W-Sn deposits in the Nanling region (include southern Jiangxi Province, southern Hunan Province, northern Guangdong Province and eastern Guangxi Zhuang Autonomous Region) exhibit numerous episodes. The mineralization in the Nanling region mainly occurred at (240-210) Ma, (170-150) Ma and (130-90) Ma. The tungsten-tin deposits in this region are centered by the largest scale in southern Jiangxi Province and southern Hunan Province, and become small in the east, west, south and north directions. This displays a zonal arrangement and temporal and spatial distribution regularity. Integrated with the latest research results, it is concluded that the W-Sn mineralization in southern Jiangxi Province and its adjacent areas corresponds to the second large-scale mineralization in South China. The Indosinian W-Sn mineralization formed under the extensional tectonic regime between collisional compressional stages, while the Yanshanian large-scale petrogenetic and metallogenic processes occurred in the Jurassic intraplate extensional geodynamic setting of lithosphere extension. | FENG Chengyou ZHANG Dequan ZENG Zailind WANG Song | 2012 | Acta Geologica Sinica(English Edition)2012，86，3： | 9 |
| 3 | The Pellet Enhanced Performance on the HL-2A Tokamak显示文摘 | DING Xuantong YANG Qingwei YAN Longwen ZHU Genliang CAO Zeng XIAO Zhenggui GAO Qingdi LONG Yongxing LIU Dequan LIU Yi ZHOU Yan PAN Yudong CUI Zhengying HUANG Yuan LIU Zetian SHI Zhongbing JI Xiaoquan XIAO Weiwen LIU Yong | 2006 | Southwestern Institute of Physics Annual Report2006，，1： | 1 |
| 4 | Construction of the HL-2A tokamak 显示文摘 | Dequan L Caipin Z Zeng C | 2003 | Fusion engineering and design2003，6668，： | 1 |
| 5 | Construction of the HL-2A tokamak 显示文摘 | Liu Dequan Zhou Caipin Cao Zeng | 2003 | Fusion Engineering and Design2003，6668，： | 1 |
| 6 | Characterization of Natural Killer Cells in the Liver of Young Mice显示文摘OBJECTIVE To determine the quantity and quality of liver NK cells from young and adult mice and compare their characteristics. METHODS C57BL/6 mice were used at 2 weeks (young) and 8 weeks (adult) of age. The percentage and absolute number of NK cells in the liver and spleen were analyzed. The cytotoxicity of NK cells in the liver and spleen against various targets were detected by a 4 h 51Cr-release method. FACScan was used to analyze the expression of CD69, Mac-1, Ly49C/I and CD94 on the NK cells. Perforin mRNA levels were analyzed by the reverse transcription polymerase chain reaction (RT-PCR). RESUTLS The percentages of NK cells in the liver of young and adult mice were similar (11.9%±1.7% vs. 9.9%±1.6%, P>0.05), but the absolute number per liver weight was higher in the young animals (11.6±2.5x105/g vs. 3.4±0.8x105/g, P<0.05). The level of NK cytotoxicity was extremely high in the liver of young compared to adult mice (71.0%±5.5% vs. 23.8%±4.4%, P<0.05), but this difference was not observed in the spleen. Phenotypes of the liver NK cells from young and adult mice were completely different from each other. The liver NK cells from young mice were CD69high Mac-1lowLy49C/ Ilow, whereas NK cells from older mice displayed inverse antigen levels (CD-69low Mac-1high Ly49C/Ihigh). The expression levels of other NK cell-related markers were similar in both groups.The perforin mRNA level in the liver lymphocytes from young mice was consistently greater compared to adult mice. CONCLUSION From 2 to 8 weeks C57BL/6 mice liver NK cells undergo age-associated changes. At 2 weeks of age the liver NK cells showed a high level of NK cytotoxicity and a unique phenotype which was not apparent at 8 weeks of age. | Peng Zhao Jiansheng Guo Guangjun Wang Qiang Chi Dequan Wu Zhaolin Zeng Xuefeng Bai Xishan Hao | 2007 | Chinese Journal of Clinical Oncology2007，4，1： | 1 |
| 7 | Construction of the HL-2A tokamak 显示文摘 | Liu Dequan Zhou Caipin Cao Zeng | 2003 | Fusion Engineering and Design2003，6668，： | 1 |
| 8 | Overview of HL-2A Experiment Results显示文摘 | YANG Qingwei LIU Yong DING Xuantong YAN Longwen LIU Dequan XUAN Weiming CHEN Liaoyuan RAO Jun SONG Xianming CAO Zeng ZHANG Jinhua DUAN Xuru MAO Weicheng ZHOU Caipin PAN Chuanhong | 2006 | Southwestern Institute of Physics Annual Report2006，，1： | 1 |
| 9 | Divertor Experiments with MBI and Strong Gas Puffing on HL-2A显示文摘 | DUAN Xuru DING Xuantong YANG Qingwei YAN Longwen YAO Lianghua HONG Wenyu XUAN Weiming LIU Dequan CHEN Liaoyuan SONG Xianming ZHANG Jinhua CAO Zeng CUI Zhengying LI Wei LIU Yi PAN Yudong PAN Li ZHENG Yinjia ZHOU Yan MAO Weicheng LIU Yong 无 | 2006 | Southwestern Institute of Physics Annual Report2006，，1： | 0 |
| 10 | Siliconization for Wall Conditioning and Its Effect on Plasma Performance in HL-2A Tokamak显示文摘 | DUAN Xuru CAO Zeng CUI Chenghe CAI Xiao SUN Hongjuan DING Xuantong PAN Yudong WANG Mingxu YANG Qingwei SONG Xianming LIU Dequan LIU Yi JI Xiaoquan CUI Zhengying ZHOU Yan LIU Yong 无 | 2006 | Southwestern Institute of Physics Annual Report2006，，1： | 0 |
| 11 | A unified optimal planner for autonomous parking vehicle显示文摘In order to reduce the controlling difficulty caused by trajectory meandering and improve the adaptability to parking into regular lots,a versatile optimal planner(OP)is proposed.Taking advantage of the low speed specificity of parking vehicle,the OP algorithm was modeled the planning problem as a convex optimization problem.Collision-free constraints were formalized into the shortest distance between convex sets by describing obstacles and autonomous vehicle as affine set.Since employing Lagrange dual function and combining KKT conditions,the collision-free constraints translated into convex functions.Taking the national standard into account,5 kinds of regular parking scenario,which contain 0°,30°,45°,60°and 90°parking lots,were designed to verify the OP algorithm.The results illustrate that it is benefit from the continuous and smooth trajectory generated by the OP method to track,keep vehicle's stability and improve ride comfort,compared with A*and hybrid A*algorithms.Moreover,the OP method has strong generality since it can ensure the success rate no less than 82%when parking planning is carried out at the start node of 369 different locations.Both of evaluation criteria,as the pear error and RMSE in x direction,y axis and Euclidean distance d,and heading deviation 6,are stable and feasible in real tests,which illustrates that the OP planner can satisfy the requirements of regular parking scenarios. | Dequan ZENG Zhuoping YU Lu XIONG Peizhi ZHANG Zhiqiang FU | 2019 | Control Theory and Technology2019，17，4： | 0 |
| 12 | A folic acid-decorated nanoparticles loaded JQ1 for oral squamous cell carcinoma therapy显示文摘Oral squamous cell carcinoma(OSCC)is known as one of the most malignant tumors with high recurrence and fatality rate.The poor tumor-targeting ability of traditional chemotherapeutic drugs has been a grand challenge for anti-OSCC therapy.Beyond that,a large quantity of tumor associated macrophages in OSCC tissues further diminish the anti-tumor effects of these drugs.Therefore,we produced a therapeutic nano drug delivery system(FA-PEG-PLA-JQ1)through encapsulating JQ1[a small-molecule inhibitor of bromodomain containing protein 4(BRD4)]into the folic acid(FA)-modified nanoparticle(PEG-PLA),which could prolong the half-life of JQ1 and target the tumor tissues.And then,JQ1 released from this nanoparticle could prevent OSCC growth inducing tumor cell apoptosis,inhibiting tumor angiogenesis and the polarization of M2 type macrophages.In conclusion,our date demonstrated the therapeutic benefits of FA-PEG-PLA-JQ1 against OSCC in vivo or in vitro,which could be a novel treatment strategy for OSCC in coming days. | Dequan Zeng Zhongkai Ma Xin Zan Ting Luo Xiang Wang Xiang Gao Xianghui Fu | 2024 | Chinese Chemical Letters2024，35，3： | 0 |
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