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| 1 | A Potential Global Standard Stratotype-Section and Point of the Moscovian Stage(Carboniferous)显示文摘Conodonts 和 fusulinids 是为细分和相关 Bashkirian 和 Moscovian 阶层的二个最广泛地使用的关於生命的组。因为在存在边界定义建议,其各个有劣势之中有许多争论,全球 Moscovian 阶段的底的定义是未定的。Declinognathodus donetzianus 容易在它的 paleogeographic 分发被认出,但是有点限制了。Idiognathoides postsulcatus 是稍微更普遍的,但是它不太容易被识别,它的出现可以是从区域的 diachronous 到区域。Diplognathodus ellesmerensis 容易被认出并且甚至更普遍,但是它通常是稀罕的,它的祖先足够地不被知道。南方贵州的 Naqing 节,华南包含多样的 conodont 在不同 taxa,包括的 Idiognathoides, Idiognathodus, Diplognathodus, Neognathodus, Gondolella 和 Mesogondolella 之中的进化的系。在有众多的过渡形式几乎 Naqing 节的每个系,哪个为华南的前景上演在决定基础 Moscovian 起一个关键作用的表演定义好。 | WANG Xiangdong QI Yuping Lance LAMBERT WANG Zhihao WANG Yue HU Keyi LIN Wei CHEN Bo | 2011 | Acta Geologica Sinica(English Edition)2011，85，2： | 3 |
| 2 | Carboniferous integrative stratigraphy and timescale of China显示文摘The Carboniferous period lasted about 60 Myr, from ~358.9 Ma to ~298.9 Ma. According to the International Commission on Stratigraphy, the Carboniferous System is subdivided into two subsystems, i.e., Mississippian and Pennsylvanian, including 6 series and 7 stages. The Global Stratotype Sections and Points(GSSPs) of three stages have been ratified, the Tournaisian, Visean, and Bashkirian stages. The GSSPs of the remaining four stages(i.e., the Serpukhovian, Moscovian,Kasimovian, and Gzhelian) have not been ratified so far. This paper outlines Carboniferous stratigraphic subdivision and correlation on the basis of detailed biostratigraphy mainly from South China, and summarizes the Carboniferous chronostratigraphic framework of China. High-resolution biostratigraphic study reveals 37 conodont zones, 24 foraminiferal(including fusulinid) zones, 13 ammonoid zones, 10 brachiopod zones, and 10 rugose coral zones in the Carboniferous of China. The biostratigraphic framework based on these biozones warrants the precise correlation of regional stratigraphy of China(including2 subsystems, 4 series, and 8 stages) to that of the other regions globally. Meanwhile, the Carboniferous chemo-, sequence-,cyclo-, and event-stratigraphy of China have been intensively studied and can also be correlated worldwide. Future studies on the Carboniferous in China should focus on(1) the correlation between shallow-and deep-water facies and between marine and continental facies,(2) high-resolution astronomical cyclostratigraphy, and(3) paleoenvironment and paleoclimate analysis based on geochemical proxies such as strontium and oxygen isotopes, as well as stomatal indices of fossil plants. | Xiangdong WANG Keyi HU Wenkun QIE Qingyi SHENG Bo CHEN Wei LIN Le YAO Qiulai WANG Yuping QI Jitao CHEN Zhuoting LIAO Junjun SONG | 2019 | Science China Earth Sciences2019，62，1： | 2 |
| 3 | Polymer electrolytes reinforced by 2D fluorinated filler for all-solidstate Li-Fe-F conversion-type lithium metal batteries显示文摘The polyethylene oxide(PEO)based solid-state batteries are considered as promising candidates for the next-generation Li metal batteries with high energy density and safety.However,the low Li-ion conductivity and high-voltage endurability hinder the further applications of PEO-based electrolytes.To overcome these issues,herein two-dimensional(2D)CeF_(3)nanoplates with maximally exposed[001]crystal faces are introduced into the PEO matrix to expand the electrochemical window and improve Liion conduction and transport.The optimized crystal shape and crystal face anisotropy of CeF_(3)nanoplate filler reduce the crystallinity of composite solid polymer electrolyte(CSPE)via its Lewis acid-base interaction with ether oxygen of PEO.The Liaffinity[100]and Li-repellent[001]crystal faces of CeF_(3)nanoplates synergistically realize the dissociation of lithium bis(trifluoromethanesulfonyl)imide(LiTFSI),fast Li-adsorption/desorption,and Li+migration.The optimized CSPE-0.1CeF_(3)membrane enables the achievement of Li metal batteries with high endurability and stability,from the kinetically favorable Li/Li symmetric cells with long-term cycling over 8000 h.The highly reversible Li/LiFePO_(4) cells exhibit a capacity retention of 109.2 mAh·g^(−1)after 1000 cycles at 1 C,corresponding to a low capacity fading rate of 0.026%per cycle.The conversion-type allsolid-state Li/CSPE-0.1CeF_(3)/FeF_(3)cells show a high reversible capacity of 201.9 mAh·g^(−1)after long-term 600 cycles and of 231.1 mAh·g^(−1)at an ultra-high rate of 5 C. | Meng Lei Xiaoxue Wu Yangyang Liu Keyi Chen Jiulin Hu Chilin Li | 2023 | Nano Research2023，16，6： | 1 |
| 4 | Deadlock avoidance policy for Petri net modeling of flexible manufacturing systems with shared resources显示文摘 | XING Keyi HU Baosheng CHEN Xiaoxun | 1996 | IEEE Transactions on Robotics and Automation1996，41，2： | 1 |
| 5 | Tailored deep-eutectic solvent method to enable 3D porous iron fluoride bricks for conversion-type lithium batteries显示文摘Conversion-type fluoride cathode can provide considerable energy density for Li batteries,however its scalable and facile synthesis strategies are still lacking.Here,a novel Fe-based deep eutectic solvent composed of nitrite and methylsulfonylmethane is proposed as both the reaction medium and precursor to synthesize O-doped FeF3porous bricks.This method is cheaper,safe,mildly operable,environmentally friendly and recyclable for non-fluorinated metal cations.The homogenization of charge and mass transport in cathode network effectively mitigates the volume extrusion and electrode coarsening even for the micro-sized monolithic particles.The Co-solvation modulated fluoride cathode delivers high reversible capacity in a wide temperature range(486 and 235 mA h g^(-1)at 25℃ and-20℃ respectively),excellent rate performance(312 mA h g^(-1)at 1000 mA g^(-1)),corresponding to an energy density as high as672.1 W h kg^(-1)under a power density of 2154.3 W kg^(-1).The successful operation of fluoride pouchcell with a capacity exceeding 450 mA h g^(-1)(even under thin Li foil and lean electrolyte conditions) indicates its potentiality of commercial application. | Chuanzhong Lai Keyi Chen Yongjian Zheng Junwei Meng Jiulin Hu Chilin Li | 2023 | Journal of Energy Chemistry2023，，3： | 0 |
| 6 | A prospective cohort study on serum A20 as a prognostic biomarker of aneurysmal subarachnoid hemorrhage显示文摘BACKGROUND:A20 may be a neuroprotective factor.Herein,we aimed to investigate whether serum A20 levels were associated with disease severity,delayed cerebral ischemia(DCI),and outcome after aneurysmal subarachnoid hemorrhage(aSAH).METHODS:In this prospective cohort study containing 112 aSAH patients and 112 controls,serum A20 levels were quantified.At 90 d poststroke,Modified Rankin Scale(MRS) scores≥3 were defined as a poor outcome.All correlations and associations were assessed using multivariate analysis.RESULTS:Compared with controls,there was a significant elevation of serum A20 levels in patients(median 123.7 pg/mL vs.25.8 pg/mL;P<0.001).Serum A20 levels were independently correlated with Hunt-Hess scores(β 9.854;95% confidence interval [95% CI] 2.481-17.227,P=0.009) and modified Fisher scores(β 10.349,95% CI 1.273-19.424,P=0.026).Independent associations were found between serum A20 levels and poor outcome(odds ratio [OR] 1.015,95%CI 1.000-1.031,P=0.047) and DCI(OR 1.018,95% CI 1.001-1.035,P=0.042).Areas under the curve for predicting poor outcome and DCI were 0.771(95% CI 0.682-0.845) and 0.777(95% CI 0.688-0.850),respectively.Serum A20 levels ≥128.15 pg/mL predicted poor outcome,with a sensitivity of 73.9% and specificity of 74.2%,and A20 levels ≥160.55 pg/mL distinguished the risk of DCI with65.5% sensitivity and 89.2% specificity.Its ability to predict poor outcome and DCI was similar to those of Hunt-Hess scores and modified Fisher scores(both P>0.05).CONCLUSION:Enhanced serum A20 levels are significantly associated with stroke severity and poor clinical outcome after aSAH,implying that serum A20 may be a potential prognostic biomarker for aSAH. | Tian Yan Ziyin Chen Shengdong Zou Zefan Wang Quan Du Wenhua Yu Wei Hu Yongke Zheng Keyi Wang Xiaoqiao Dong Shuangyong Dong | 2023 | World Journal of Emergency Medicine2023，14，5： | 0 |
| 7 | Ammonia Fuel Ship Looks Near,But a Bit Far Further Ahead显示文摘It is not an easy task for ammonia fuel powered ship to truly achieve engineering approach and rommerrialization,as there is still a lot of work to he clone around the research and development and application of ammonia fuel power units,the innovation of containment systems,and the revision of regulations for ammonia as a marine fuel. | Hu Keyi | 2022 | 船舶经济贸易2022，，2： | 0 |
| 8 | Carboniferous integrative stratigraphy,biotas,and paleogeographical evolution of the Qinghai-Tibetan Plateau and its surrounding areas显示文摘During the Carboniferous Period,the Qinghai-Tibetan Plateau and its surrounding areas were located in quite different paleogeographic positions with various sedimentary and biological types.It is important to systematically compile and summarize the Carboniferous strata and biotas of the Qinghai-Tibetan Plateau and its surrounding areas,to establish an integrated stratigraphic framework for correlation,and to reconstruct the paleogeography for correctly understanding the breakup of the Gondwana Continent and the evolution of the Paleo-Tethys Ocean in the Late Paleozoic.The Carboniferous of the Qinghai-Tibetan Plateau and its surrounding areas can be subdivided into the Gondwanan,Cimmerian,and Tethyan types.The Gondwanan-type Carboniferous are distributed in the North Himalayan,Kangmar-Lhunze,and Zanda-Zumba regions of the South Tibet Subprovince and northern India-Pakistan Area,where only the Mississippian is developed and the biota is of Gondwanan affinity.The Cimmerian-type Carboniferous,which are found in the Baoshan,Tengchong,Coqen-Xainza,LhasaZayu,Nagqu-Biru,and South Qiangtang regions,as well as Shan-Thai and South Afghanistan-Pamir areas,also represent only the Mississippian strata,but their biota is characterized by mixed characters of European,South China,Australian,and North American types.The Tethyan-type Carboniferous are distributed in the Tanggula Mountains,Hoh Xil-Bayanhar,ChamdoHengduanshan,Tiekelike,West Kunlun,Karakorum,East Kunlun-Central Qinling,and Qilian regions,where the Carboniferous succession is well developed,and the biota is of warm-water Tethyan affinity.The biostratigraphical correlation of the Gondwanan-type and Cimmerian-type Carboniferous is based mainly on conodonts and additionally on brachiopods and rugose corals.The Mississippian of the Tethyan-type Carboniferous is correlated mainly by using rugose corals and brachiopods,whereas in the Pennsylvanian foraminifera(fusuline)and conodonts are regarded as primary fossil groups,subordinated by rugose corals and brachiopods.Adhering to the International standard chronostratigraphy of the Carboniferous,we have reconstructed a framework of the litho-and biostratigraphic subdivision and correlation of the Qinghai-Tibetan Plateau and its surrounding areas.Further studies should focus on isotope geochronology,geochemistry,paleoclimates,and paleoenvironments of the Carboniferous in the Qinghai-Tibetan Plateau and its surrounding areas. | Keyi HU Xiangdong WANG Wenqi WANG Yingfan SONG Xunyan YE Lu LI Yukun SHI Sunrong YANG Ying LI | 2024 | Science China Earth Sciences2024，67，4： | 0 |
| 9 | Modulation of Spike Count Correlations Between Macaque Primary Visual Cortex Neurons by Difficulty of Attentional Task显示文摘Studies have shown that spatial attention remarkably affects the trial-to-trial response variability shared between neurons.Difficulty in the attentional task adjusts how much concentration we maintain on what is currently important and what is filtered as irrelevant sensory information.However,how task difficulty mediates the interactions between neurons with separated receptive fields(RFs)that are attended to or attended away is still not clear.We examined spike count correlations between single-unit activities recorded simultaneously in the primary visual cortex(V1)while monkeys performed a spatial attention task with two levels of difficulty.Moreover,the RFs of the two neurons recorded were non-overlapping to allow us to study fluctuations in the correlated responses between competing visual inputs when the focus of attention was allocated to the RF of one neuron.While increasing difficulty in the spatial attention task,spike count correlations were either decreased to become negative between neuronal pairs,implying competition among them,with one neuron(or none)exhibiting attentional enhancement of firing rate,or increased to become positive,suggesting inter-neuronal cooperation,with one of the pair showing attentional suppression of spiking responses.Besides,the modulation of spike count correlations by task difficulty was independent of the attended locations.These findings provide evidence that task difficulty affects the functional interactions between different neuronal pools in V1 when selective attention resolves the spatial competition. | Qiyi Hu Wenjuan Hu Keyi Liu Xiangdong Bu Lisha Hu Liming Li Xinyu Chai Yao Chen | 2022 | Neuroscience Bulletin2022，38，5： | 0 |
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