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A knowledge graph for standard carbonate microfacies and its application in the automatical reconstruction of the relative sea-level curve

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Geoscience Frontiers 2023年第5期14卷 402-414页

作者： Han Wang Hanting Zhong Anqing Chen Keran Li Hang He Zhe Qi Dongyu Zheng Hongyi Zhao Mingcai hou State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of TechnologyChengdu 610059China Key Laboratory of Deep-time Geography and Environment Reconstruction and Applications MNR&Institute of Sedimentary GeologyChengdu University of TechnologyChengdu 610059China State Key Laboratory of Biogeology and Environmental Geology China University of Geosciences(Beijing)Beijing 100083China

The reconstruction of high-resolution sea-level variation curves in deep time based on the standard car-bonate microfacies knowledge graph(SMFKG)is of great scientific significance for exploring the Earth system evolution and predicting future sea-level and climate *** this study,the concepts,attri-butes,and relationships among standard carbonate microfacies(SMF)are comprehensively analyzed;an ontology layer is established and its data layer is constructed using thin-section descriptions;and finally,the SMFKG is ***,based on the knowledge graph,an application for automatically identifying SMF using identification markers and reconstructing the high-resolution relative sea-level variation curve using the SMF and facies zones is ***,all thin sections of the late Ediacaran Dengying Formation in the western margin of the Yangtze Platform are observed and described in detail,the SMF and facies zones are identified automatically,and the relative sea-level curve is recon-structed automatically using the *** reconstruction results show that the Yangtze Platform experienced four sea-level rise and fall cycles in the late Ediacaran,of which two intense regressions led to subaerial-exposed unconformities in the interior and top of the Dengying Formation,which is highly consistent with previous research *** shows that the high-resolution relative sea-level variation curve in deep time can be reconstructed efficiently and intelligently using the ***,in the near future,the combination of an automatic digital slide-scanning system,machine-learning techniques,and the SMFKG can achieve one-stop fully automatic SMF recognition and reconstruction of high-resolution relative sea-level variation curves in deep time,which has a high application value.

关键词： Sea-level curve Standard microfacies Knowledge graph Ediacaran Dengying Formation

Mode-Coupling Theory for Glass Transition of Active-Passive Binary Mixture

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Chinese Journal of Chemical Physics 2018年第4期31卷 584-594,616页

作者： Meng-kai Feng Zhong-huai hou Department of Chemical Physics ＆ Hefei National Laboratory for Physical Sciences at the Microscales iChEMUniversity of Science and Technology of ChinaHefei 230025China

Collective behaviours of active particle systems have gained great research attentions in re- cent years. Here we present a mode-coupling theory （MCT） framework to study the glass transition of a mixture system of active and passive Brownian particles. The starting point is an eff）ctive Smoluchowski equation, which governs the dynamics of the probability dis- tribution function in the position phase space. With the assumption of the existence of a nonequilibrium steady state, we are able to obtain dynamic equations for the intermediate scattering functions （ISFs）, wherein an irreducible memory function is introduced which in turn can be written as functions of the ISFs based on standard mode-coupling approximations. The effect of particle activity is included through an effective difIusion coefficient which can be obtained via short time simulations. By calculating the long-time limit of the ISF, the Debye-Waller （DW） factor, one can determine the critical packing fraction ηc of glass transition. We find that for active-passive （AP） mixtures with the same particle sizes, ηc increases as the partial fraction of active particle xA increases, which is in agreement with previous simulation works. For system with different active/passive particle sizes, we find an interesting reentrance behaviour of glass transition, i.e., ηc shows a non-monotonic dependence on xa. In addition, such a reentrance behaviour would disappear if the particle activity is large enough. Our results thus provide a useful theoretical scheme to study glass transition behaviour of active-passive mixture systems in a promising way.

关键词： Glass transition Mode-coupling theory Active particles Active-passive par ticle mixture

Occurrence Characteristics of Saline-Lacustrine Shale-Oil in the Qianjiang Depression,Jianghan Basin,Central China

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Journal of Earth Science 2022年第4期33卷 945-962页

作者： Zhongliang Sun Zhiliang He Furong Wang Yuanjia Han Sheng He Yuguang hou Jing Luo Youheng Zheng Shiqiang Wu Wuxi Research Institute of Petroleum Geology Petroleum Exploration and Production Research InstituteSINOPECWuxi 214126China State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development Beijing 100083China Department of Science and Technology China Petroleum and Chemical CorporationBeijing 100728China Key Laboratory of Tectonics and Petroleum Resources China University of GeosciencesWuhan 430074China Research Institute of Petroleum Exploration and Development Jianghan Oilfield Branch CompanySINOPECWuhan 430223China

The amount of shale oil and its characterization are key issues in the study of shale *** present,many scholars use a variety of methods to evaluate the amount of shale oil,and use the calculated amount of hydrocarbons to analyze its influencing factors;however,there is lack of detailed research on the storage space for shale-oil and it’s influencing *** view of this issue,gas chromatography(GC),gas chromatography-mass spectrometry(GC-MS),soxhlet extraction(SE),fieldemission scanning electron microscopy(FE-SEM),low-temperature nitrogen adsorption(LTNA),highpressure mercury intrusion(HPMI),and X-ray diffraction(XRD)were used to analyze and compare samples from two wells located in different deposition *** unconventional Well BYY2 and BX7 s were drilled in the depocenter and distal area of the Qianjiang Formation,*** by differences in the organic matter type and sedimentary environment,the organic matter in Well BYY2,which was found to be characterized by laminar shale,mainly originated from aquatic *** results showed that as the total organic carbon(TOC)content increased,the amount of shaleoil in the pores ***-oil was mostly stored in mesopores and macropores that had been preserved by dolomite minerals of a biogenic origin and also occurred in pores sized 5–200 nm and>1μ*** minerals of a biogenic origin and clay minerals contributed to the occurrence of *** comparison,the organic matter in Well BX7 has been greatly influenced by terrestrial organic *** in the massive mudstones from Well BX7 were determined to be mainly mesopores preserved by clay minerals and quartz,and the shale-oil was mostly stored within the pores of<40 *** the TOC content was~2.5 wt.%,the generated shale-oil reached *** minerals contributed to the occurrence of shale-oil,whereas quartz only contributed to the occurrence of shale-oil in macropores.

关键词： shale oil reservoir storage space of shale oil saline lacustrine Jianghan Basin

Nitrogen-doped Carbon Coated Na3V2(PO4)3 with Superior Sodium Storage Capability

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Chemical Research in Chinese Universities 2020年第3期36卷 459-466页

作者： XU Laiqiang LI Jiayang LI Yitong CAI Peng LIU Cheng ZOU Guoqiang hou Hongshuai HUANG Lanping JI Xiaobo College of Chemistry and Chemical Efigineenng Central South University\Changsha 410083P.R.China School of Metallurgy and Chemical Engineering Jiangxi University of Science and TechnologyGanzhou 341000P.R.China Science and Technology on High Strength Structural Materials Laboratory Central South University Changsha 410083P.R.China

Cathodes with high cycling stability and rate capability are required for ambient temperature sodium ion batteries in renewable energy storage ***3V2(PO4)3 is an attractive cathode material with excellent electrochemical stability and fast ion diffusion coefficient within the 3D NASICON ***,the practical application of Na3V2(PO4)3 is seriously hindered by its intrinsically poor electronic ***,solvent evaporation method is presented to obtain the nitrogen-doped carbon coated Na3V2(PO4)3 cathode material,delivering cnhanced clectrochemical performances.N-Doped carbon layer coating servfes as a highly conducting pathway,and creates numerous extrinsic defects and active sites,which can facilitate the storage and diffusion of Na^+.Morcover,the N-doped carbon layer can provide a stable framework to accommodate the agglomeration of the electrode upon electrode cycling.N-Doped carbon coated Na3V2(PO4)3(NC-NVP)exhibits excellent long cycling life and superior rate performances than bare Na3V2(PO4)3 without carbon ***-NVP delivers a stable capacity of 95.9mA·h/g after 500 cycles at 1C rate,which corresponds to high capacity retention(94.6%)with respect to the initial capacity(101.4mA·h/g).Over 91.3% of the initial capacity is retained after 500 cycles at 5C,and the capacity can reach 85mA·h/g at 30C rate.

关键词： Cathode Sodium ion battery Na3V2(PO4)3 Nitrogen-doped carbon

ROS-responsive cyclodextrin nanoplatform for combined photodynamic therapy and chemotherapy of cancer

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Chinese Chemical Letters 2021年第1期32卷 162-167页

作者： Die Jia Xianbin Ma Yi Lu Xinyi Li Shengxin hou Yuan Gao Peng Xue Yuejun Kang Zhigang Xu State Key Laboratory of Silkworm Genome Biology School of Materials and EnergySouthwest UniversityChongqing 400715China Chongqing Engineering Research Center for Micro-Nano Biomedical Materials and Devices Southwest UniversityChongqing 400715China

Cyclodextrin(CD) has special spatial structure and well biological safety,so it has been widely used for constructing CD-based na *** functionalization,cyclodextrin can form various stimulusresponse nanoplatforms,such as pH,temperature,redox,light and magnetic *** this study,we designed a highly sensitive reactive oxygen species(ROS)-responsive polymer PCP which encapsulated doxorubicin(DOX) and purpurin 18(P18) to achieve the syne rgy of photodynamic and *** high content of reactive oxygen species(ROS) in the tumor microenvironment(TME) triggers the cleavage of the borate bond of MPEG-CD-PHB(PCP),thereby promoting the re lease of *** irradiated with nea rinfrared laser,the photosensitizer P18 released by polymer micelles can produce reactive oxygen species to promote cell *** with monotherapy,a series of experiments confirmed that our micelles had enhanced anti-cancer *** work was beneficial to the design of ROS-responsive materials and provides an effective strategy for the application of collaborative anti-tumor therapy.

关键词： Chemotherapy Photodynamic therapy Synergistic therapy Cyclodextrins ROS-responsive

The structure–activity relationships of Rh/CeO_(2)-ZrO_(2) catalysts based on Rh metal size effect in the three-way catalytic reactions

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Nano Research 2024年第8期17卷 6870-6878页

作者： Dongming Chen Weixin Zhao Zihao Xu Zheng Zhao Juanyu Yang Yongke hou Yongqi Zhang Zongyu Feng Meisheng Cui Xiaowei Huang National Engineering Research Center for Rare Earth Grirem Advanced Materials Co.Ltd.Beijing 100088China Grirem Hi-Tech Co. Ltd.Sanhe 065201China General Research Institute for Nonferrous Metals Beijing 100088China

With the continuous tightening of automotive emission regulations and the increasing promotion of energy-efficient hybrid vehicles,new challenges have arisen for the low-temperature performance of three-way catalysts(TWCs).To guide the design of next-generation TWCs,it is essential to further develop our understanding of the relationships between microstructure and catalytic ***,Rh/CeO_(2)–ZrO_(2) catalysts were synthesized with different Rh metal dispersion by using a combination of the wet impregnation method and reduction *** catalysts included Rh single-atom catalysts,cluster catalysts,and nanoparticle *** results showed that the Rh nanoparticle catalyst,with an average size of 1.9 nm,exhibited superior three-way catalytic performance compared to the other *** on the catalytic activity in a series of simple reaction atmospheres such as CO+O_(2),NO+CO,and hydrocarbons(HCs)+O_(2) and operando infrared spectroscopy,we found that metallic Rh sites on Rh nanoparticles are the key factor responsible for the low-temperature catalytic performance.

关键词： Rh/CeO_(2)-ZrO_(2) catalyst Rh metal size effect Rh nanoparticles three-way catalytic performance

Integrated liver proteomics and metabolomics identify metabolic pathways affected by pantothenic acid deficiency in Pekin ducks

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Animal Nutrition 2022年第4期11卷 1-14页

作者： Jing Tang Yongbao Wu Bo Zhang Suyun Liang Zhanbao Guo Jian Hu Zhengkui Zhou Ming Xie Shuisheng hou State Key Laboratory of Animal Nutrition Key Laboratory of Animal(Poultry)Genetics Breeding and ReproductionMinistry of Agriculture and Rural AffairsInstitute of Animal SciencesChinese Academy of Agricultural Sciences100193BeijingChina

Pantothenic acid deficiency(PAD)in animals causes growth depression,fasting hypoglycemia and impaired lipid and glucose ***,a systematic multi-omics analysis of effects of PAD on hepatic function has apparently not been *** investigated liver proteome and metabolome changes induced by PAD to explain its effects on growth and liver metabolic *** ducks(1-dold,n=128)were allocated into 2 groups,with 8 replicates and 8 birds per *** 16 d,all ducks had ad libitum access to either a PAD or a pantothenic acid adequate(control,CON)diet,formulated by supplementing a basal diet with 0 or 8 mg pantothenic acid/kg of diet,*** enlargement,elevated liver glycogen concentrations and decreased liver concentrations of triglyceride and unsaturated fatty acids were present in the PAD group compared to the CON *** on integrated liver proteomics and metabolomics,PAD mainly affected glycogen synthesis and degradation,glycolysis and gluconeogenesis,tricarboxylic acid(TCA)cycle,peroxisome proliferator-activated receptor(PPAR)signaling pathway,fatty acid beta oxidation,and oxidative *** proteins were confirmed by Western *** of proteins and metabolites involved in glycogen synthesis and degradation,glycolysis and gluconeogenesis implied that these processes were impaired in PAD ducks,which could have contributed to fasting hypoglycemia,liver glycogen storage,insufficient ATP production,and growth *** contrast,PAD also upregulated proteins and metabolites involved in fatty acid beta oxidation,the TCA cycle,and oxidative phosphorylation processes in the liver;presumably compensatory responses to produce *** inferred that PAD decreased liver triglyceride and unsaturated fatty acids by activating fatty acid beta oxidation and impairing unsaturated fatty acid *** findings contributed to our understanding of the mechanisms of PAD-induced changes in hepatic metabol

关键词： Pantothenic acid Hepatic metabolism Proteomics Metabolomics Hypoglycemia

Design and Implementation of a Network Performance Analysis System for Space Network Emulation Platforms

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China Communications 2022年第9期19卷 199-213页

作者： Dongxu hou Fa Chen Chengpeng Kuang Yuhang Du Qi Zhang Kanglian Zhao Wenfeng Li Sidan Du Yuan Fang School of Electronic Science and Engineering Nanjing UniversityJiangsu 210023China

Emulation platforms are critical for evaluation and verification in the research of networking technologies and protocols for space networks(SN).High fidelity emulating technologies have been extensively studied for SN in earlier work,while little emphasis has been placed on the performance evaluation *** this paper,the design of a network performance analysis architecture is presented,with which high-speed network traffic can be captured and indexed,and the performance of the emulated SN can be well analyzed and *** architecture comprises three components,namely capture layer,storage layer and analysis *** Hierarchy Process(AHP)and several analysis methods are adopted to evaluate the network performance *** the implementation of the proposed architecture,configuration optimization and parallel processing are applied to handle large amount of high-speed network ***,experiment results through the analysis system exhibits the effectiveness of the proposed architecture.

关键词： space networks emulation platforms network performance analysis

Diastereo-and enantioselective palladium-catalyzed dearomative [4+2] cycloaddition of 3-nitroindoles

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Chinese Chemical Letters 2019年第8期30卷 1512-1514页

作者： Jia-Jia Suo Juan Du Yang-Jie Jiang Di Chen Chang-Hu Ding Xue-Long hou State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular SynthesisShanghai Institute of Organic Chemistry(SIOC)Chinese Academy of Sciences(CAS)Shanghai 200032China Department of Chemistry Innovative Drug Research CenterShanghai UniversityShanghai 200444China Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis SIOCCASShanghai 200032China

A Pd-catalyzed asymmetric decarboxylative[4+2]cycloaddition of 3-nitroindoles and vinyl benzoxazinanones is developed through a dearomatization *** reaction provides an efficient protocol for constructing a series of ... 详细信息

关键词： Palladium [4+2]cycloaddition Asymmetric catalysis 3-Nitroindole Vinyl benzoxazinanone