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| 1 | Characteristics of authigenic pyrites in shallow core sediments in the Shenhu area of the northern South China Sea: Implications for a possible mud volcano environment显示文摘Distinct pyrites have been recovered from a shallow sediment core from Site 4B in the Shenhu area of the northern South China Sea. Based on the lithology, texture and structure of sediments, the stable sulfur isotope of pyrite and the total organic carbon (TOC) concentration of the sediments, a distinctive sediment interface is identified at a depth of about 1 m below the seafloor in the core sediments. The pyrites only accumulate in the lower part of the core as rods and foraminifera-infillings, and mainly within three intervals marked by high pyrite concentrations. The amount of pyrite in the sediments shows no remarkable correlation with TOC in the Site 4B core sediments. The stable sulfur isotopes of the pyrite have extremely negative values ranging from 41.69‰ to 49.16‰. They are considered to be the mutual product of sulfate bacterial reduction and sulfur bacterial disproportionation. Our research proposes that Site 4B might be located in or near a possible mud volcano sedimentary environment; a large amount of methane could migrate from deep to shallow sediments in an active mud volcano and thereby play a key role in the intensity of sulfate bacterial reduction and the amount of pyrite formed at Site 4B. Further, the variation in flux of deep methane fluid by intermittent mud volcanic eruptions might result in the deposition of authigenic pyrite intervals. | XIE Lei WANG JiaSheng WU NengYou WU DaiDai WANG Zhou ZHU XiaoWei HU Jun CHEN HongRen LIN Qi | 2013 | Science China Earth Sciences2013，56，4： | 14 |
| 2 | Multiple cycles of glacier advance and retreat during the Nantuo (Marinoan) glacial termination in the Three Gorges area显示文摘雪球地球假设建议海水完全被使冻结成冰在 Neoproterozoic 冻结百万年,由源于大气的 CO2 的提高的集中的快速、灾难的冰川的消失列在后面。然而,沉积记录不与雪球地球假设一致。在三个峡区域的 Nantuo 形成由 diamictites,沙岩和 siltstones 组成。有内在的 Liantuo 形成的地球年代学和不顺从显示在三个峡区域的 Nantuo 形成可以是部分记录(即,最后的阶段) Nantuo 冻结成冰。我们 Nantuo 形成的沉积继任上的研究相信到 Ediacaran 温室,多重冰河 advanceretreat 在骑车而非灾难的结束的从 Cryogenia 冰库的逐步的转变能被识别[出版摘要] | Jun HU Jiasheng WANG Hongren CHEN Zhou WANG Lei XIE Qi LIN | 2012 | Frontiers of Earth Science2012，6，1： | 4 |
| 3 | Adaptive impulse detection using center-weighted median filters 显示文摘 | CHEN Tao WU Hongren | 2001 | IEEE Signal Processing Letters2001，8，1： | 1 |
| 4 | Adaptive impulse detection using center-weighted median filters显示文摘 | Chen Tao Wu Hongren | 2001 | IEEE Signal Processing Letters2001，8，1： | 1 |
| 5 | An Adaptive Scheduler for Distributed Real-time Databases Systems显示文摘 | Chen Hongren Chin Y H | 2003 | Information Sciences2003，153，7： | 1 |
| 6 | Adaptive impulse detection using center-weighted median filters显示文摘 | CHEN Tao WU Hongren | 2001 | IEEE Signal Processing Letters2001，8，1： | 1 |
| 7 | Exploring a particle-size-reduction strategy of YAG:Ce phosphor via a chemical breakdown method显示文摘Particle size reduction of Y_(3)Al_(5)O_(12):Ce(YAG:Ce) phosphor is highly needed for micro-LED display applications.In this work,size control of YAG:Ce phosphor particles is achieved via carbon coating and further heat treatment.A thin layer of carbon is deposited on the surface of YAG:Ce by chemical vapor deposition.During the heat treatment,carbon reacts with oxygen element in the phosphor and escapes from phosphor particles.The reaction results in the phosphor breaking into smaller particles.The phosphors were characterized by laser light scattering for particle size distribution,scanning electron microscopy(SEM),transmission electron microscopy for morphologies,X-ray diffraction refinements for crystal structure and electron energy-loss spectroscopy for elemental analysis.It is demonstrated that the median diameter(D_(50)) of the phosphor particle size is significantly reduced from 19.1 to 0.96 μm yet the photoluminescent properties have little changes.The carbon coating and further heat treatment method show potential application in size control of phosphors. | Hongren Chen Licheng Ju Li Zhang Xin Wang Linbo Zhang Xin Xu Lin Gao Kehui Qiu Liangjun Yin | 2021 | Journal of Rare Earths2021，39，8： | 1 |
| 8 | Adaptive postfiltering of transform coefficients for the reduction of blocking artifacts显示文摘 | Chen Tao Wu Hongren Qiu Bin | 2001 | IEEE Transactions on Circuits and Systems for Video Technology2001，11，5： | 1 |
| 9 | Adaptive impulse detection using center - weighted median filters 显示文摘 | CHEN Tao WU Hongren | 2001 | IEEE Signal Process Letter2001，8，1： | 1 |
| 10 | Adaptive impulse detection using center- weighted median filters 显示文摘 | Chen Tao Wu Hongren | 2001 | IEEE Signal Processing Letters2001，8，1： | 1 |
| 11 | 3,4-Difluoropyrrole,3,3,4,4-tetrafluoro pyr-rolidine-and pyrrolidine-based liquid crystals显示文摘 | Liu Peilian Chen Hongren Stelck Daniel | 2013 | Journal of Chemistry2013，156，： | 1 |
| 12 | Abrasion Resistance of Cement Paste with Granulated Blast Furnace Slag and Its Relations to Microhardness and Microstructure显示文摘The abrasion resistance of cement pastes with 30 wt%,40 wt%and 50 wt%granulated blast furnace slag(GBFS),and its relations to microhardness and microstructure like hydration products and pore structure were studied.Results indicated that GBFS decreased the abrasion resistance of paste,and among the pastes with GBFS,the paste with 40 wt%GBFS showed the highest abrasion resistance.The microhardness of GBFS was lower than that of the cement,and the microhardness of the hydration products in paste with GBFS was also lower than that of the hydration products in paste without GBFS,so that the abrasion resistance of paste decreased when GBFS was incorporated.The reason for the decrease of microhardness of pastes with GBFS was that the contents of Ca(OH)_(2)in pastes with GBFS was significantly lower than that in the paste without GBFS,while large amounts of calcium aluminate hydrates and hydrotalcite-like phases(HT)in pastes with GBFS were generated.Furthermore,among the pastes with GBFS,the paste with 40 wt%GBFS showed the lowest porosity which was the main reason for its highest abrasion resistance. | 陈晓润 何真 CAI Xinhua ZHAO Rixu HU Lingling CHEN Hongren | 2022 | Journal of Wuhan University of Technology(Materials Science)2022，37，3： | 0 |
| 13 | Fluorocarbon and Hydrocarbon Benzodioxocycloalkane (C8-Cl0) End Groups: Effects on Mesomorphism显示文摘一个新班基于 benzodioxocycloalkane (C8C10 ) 液体晶体被准备。戒指(C8C10 ) 的影响作为结束组被调查。89 membered 戒指衍生物, 3a3b,展出了 nematic 阶段(N) 。具有由中胚叶发达的行为与增加戒指的尺寸被削弱。为 ? uorinated 媒介戒指(C8C10 ) 3d3f,它仅仅被发现氟化十 membered 戒指 3f 证明 LC 分阶段执行行为。与不同长度烷基组和到 polyfluoroalkyl 的烷基的变化一起的戒指尺寸的修正显著地影响了这些混合物的性质。 | Wanwan Cao Peilian Liu Hongren Chen Yaohang Zhu Rihao Chen Qifang Zhou Zhuo Zeng | 2013 | Chinese Journal of Chemistry2013，31，7： | 0 |
| 14 | The effect of extracellular polymeric substances (EPS) of iron-oxidizing bacteria (Ochrobactrum EEELCW01) on mineral transformation and arsenic (As) fate显示文摘Extracellular polymeric substances(EPS)are an importantmedium for communication and material exchange between iron-oxidizing bacteria and the external environment and could induce the iron(oxyhydr)oxides production which reduced arsenic(As)availability.The main component of EPS secreted by iron-oxidizing bacteria(Ochrobactrum EEELCW01)was composed of polysaccharides(150.76-165.33 mg/g DW)followed by considerably smaller amounts of proteins(12.98–16.12 mg/g DW).Low concentrations of As(100 or 500μmol/L)promoted the amount of EPS secretion.FTIR results showed that EPS was composed of polysaccharides,proteins,and a miniscule amount of nucleic acids.The functional groups including-COOH,-OH,-NH,-C=O,and-C-O played an important role in the adsorption of As.XPS results showed that As was bound to EPS in the form of As3+.With increasing As concentration,the proportion of As3+adsorbed on EPS increased.Ferrihydrite with a weak crystalline state was only produced in the system at 6 hr during the mineralization process of Ochrobactrum sp.At day 8,the minerals were composed of goethite,galena,and siderite.With the increasing mineralization time,the main mineral phases were transformed from weakly crystalline hydrous iron ore into higher crystallinity siderite(FeCO_(3))or goethite(α-FeOOH),and the specific surface area and active sites of minerals were reduced.It can be seen from the distribution of As elements that As is preferentially adsorbed on the edges of iron minerals.This study is potential to understand the biomineralizationmechanism of iron-oxidizing bacteria and As remediation in the environment. | Chuan Wu Yueru Chen Ziyan Qian Hongren Chen Waichin Li Qihou Li Shengguo Xue | 2023 | Journal of Environmental Sciences2023，，8： | 0 |
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