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Microscopic experiment on efficient construction of underground gas storages converted from water-invaded gas reservoirs

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Petroleum Exploration and Development 2024年第1期51卷 203-212页

作者： JIANG Tongwen QI Huan WANG Zhengmao LI Yiqiang WANG Jinfang liu Zheyu cao Jinxin PetroChina Company Limited Beijing 100007China National Key Laboratory of Petroleum Resources and Engineering China University of Petroleum(Beijing)Beijing 102249China College of Petroleum Engineering China University of Petroleum(Beijing)Beijing 102249China PetroChina Petroleum&New Energies Company Beijing 100007China PetroChina Research Institute of Petroleum Exploration&Development Beijing 100083China

Based on the microfluidic technology,a microscopic visualization model was used to simulate the gas injection process in the initial construction stage and the bottom water invasion/gas injection process in the cyclical injection-production stage of the underground gas storage(UGS)rebuilt from water-invaded gas *** analysis of the gas-liquid contact stabilization mechanism,flow and occurrence,the optimal control method for lifecycle efficient operation of UGS was *** results show that in the initial construction stage of UGS,the action of gravity should be fully utilized by regulating the gas injection rate,so as to ensure the macroscopically stable migration of the gas-liquid contact,and greatly improve the gas sweeping capacity,providing a large pore space for gas storage in the subsequent cyclical injection-production *** the cyclical injection-production stage of UGS,a constant gas storage and production rate leads to a low pore space *** increasing the gas storage and production rate,that is,transitioning from small volume to large volume,can continuously break the hydraulic equilibrium of the remaining fluid in the porous media,which then expands the pore space and flow *** is conducive to the expansion of UGS capacity and efficiency for purpose of peak shaving and supply guarantee.

关键词： water-invaded gas-reservoir underground gas storage cyclical injection-production gas-water contact gas storage and production rate UGS capacity expansion control method

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Impacts of agri-food e-commerce on traditional wholesale industry:Evidence from China

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Journal of Integrative Agriculture 2024年第4期23卷 1409-1428页

作者： Ruyi Yang Jifang liu Shanshan cao Wei Sun Fantao Kong Institute of Agricultural Information Chinese Academy of Agricultural SciencesBeijing 100081China Institute of Special Animal and Plant Sciences Chinese Academy of Agricultural SciencesChangchun 130112China

Rapidly expanding studies investigate the effects of e-commerce on company operations in the retail ***,the interaction between agri-food e-commerce(AEC)and the traditional agri-food wholesale industry(AWI)has not received enough attention in the existing *** on the provincial panel data from 2013 to 2020 in China,this paper examines the effect of AEC on AWI,comprising three dimensions:digitalization(DIGITAL),agrifood e-commerce infrastructure and supporting services(AECI),and agri-food e-commerce economy(AECE).First,AWI and AEC are measured using an entropy-based combination of *** results indicate that for China as a whole,AWI has remained practically unchanged,whereas AEC exhibits a significant rising ***,the findings of the fixed-effect regression reveal that DIGITAL and AECE tend to raise AWI,whereas AECI negatively affects ***,threshold regression results indicate that AECI tends to diminish AWI with three-stage inhibitory intensity,which manifests as a first increase and then a drop in the inhibition *** results suggest that with the introduction of e-commerce for agricultural product circulation,digital development will have catfish effects that tend to stimulate the vitality of the conventional wholesale industry and promote technical ***,the traditional wholesale industry benefits financially from e-commerce even while it diverts part of the traditional wholesale circulation for agricultural products.

关键词： agri-food e-commerce traditional wholesale industry panel threshold model dual-channel circulation

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Challenges in Li-ion battery high-voltage technology and recent advances in high-voltage electrolytes

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Journal of Energy Chemistry 2024年第4期91卷 73-98页

作者： Jianguo liu Baohui Li Jinghang cao Xiao Xing Gan Cui Shandong Key Laboratory of Oil&Gas Storage and Transportation Safety College of Pipeline and Civil EngineeringChina University of Petroleum(East China)Qingdao 266580ShandongChina

The electrolyte directly contacts the essential parts of a lithium-ion battery,and as a result,the electrochemical properties of the electrolyte have a significant impact on the voltage platform,charge discharge capacity,energy density,service life,and rate discharge *** raising the voltage at the charge/discharge plateau,the energy density of the battery is ***,this causes transition metal dissolution,irreversible phase changes of the cathode active material,and parasitic electrolyte oxidation *** article presents an overview of these concerns to provide a clear explanation of the issues involved in the development of electrolytes for high-voltage lithium-ion ***,solidstate electrolytes enable various applications and will likely have an impact on the development of batteries with high energy *** is necessary to improve the high-voltage performance of electrolytes by creating solvents with high thermal stabilities and high voltage resistance and additives with superior film forming performance,multifunctional capabilities,and stable lithium *** offer suggestions for the future development of high-energy lithium-ion batteries,we conclude by offering our own opinions and insights on the current development of lithium-ion batteries.

关键词： Lithium-ion battery High voltage Electrolyte additive Solid electrolyte

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Constructing Al@C-Sn pellet anode without passivation layer for lithium-ion battery

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International Journal of Minerals,Metallurgy and Materials 2024年第3期31卷 552-561页

作者： Kangzhe cao Sitian Wang Yanan He Jiahui Ma Ziwei Yue Huiqiao liu College of Chemistry and Chemical Engineering Xinyang Normal UniversityXinyang 464000China Xinyang Key Laboratory of Low-Carbon Energy Materials Xinyang 464000China Henan Province Key Laboratory of Utilization of Non-Metallic Mineral in the South of Henan Xinyang 464000China

Al is considered as a promising lithium-ion battery(LIBs)anode materials owing to its high theoretical capacity and appropri-ate lithation/de-lithation ***,its inevitable volume expansion causes the electrode structure instability,leading to poor cyclic ***’s worse,the natural Al2O3 layer on commercial Al pellets is always existed as a robust insulating barrier for elec-trons,which brings the voltage dip and results in low reversible ***,this work synthesized core-shell Al@C-Sn pellets for LIBs by a plus-minus *** this proposal,the natural Al2O3 passivation layer is eliminated when annealing the pre-introduced SnCl2,meanwhile,polydopamine-derived carbon is introduced as dual functional shell to liberate the fresh Al core from re-oxidization and alle-viate the volume *** from the addition of C-Sn shell and the elimination of the Al2O3 passivation layer,the as-prepared Al@C-Sn pellet electrode exhibits little voltage dip and delivers a reversible capacity of 1018.7 mAh·g^(-1) at 0.1 A·g^(-1) and 295.0 mAh·g^(-1) at 2.0 A·g^(-1)(after 1000 cycles),***,its diffusion-controlled capacity is muchly improved compared to those of its counterparts,confirming the well-designed nanostructure contributes to the rapid Li-ion diffusion and further enhances the lithium storage activity.

关键词： lithium-ion battery high-performance anode aluminum passivation layer plus-minus strategy

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Rare earth fluorescent nanoprobes with minimal side effects enable tumor microenvironment activation for chemotherapy

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Journal of Rare Earths 2024年第2期42卷 256-262,I0001页

作者： Tianqi cao Yuxin liu Qi Jia Xiaolu Wang Shouqiang Zhang Jing Zhou Department of Chemistry Capital Normal UniversityBeijing100048China

Chemotherapy,the use of antitumor drugs to kill cancer cells,is currently one of the most effective treatments for ***,serious toxic side effects caused by long-term drug accumulation can cause significant damage to the body,which limits the clinical application of antitumor *** this study,a novel RENPs@DOX-Fe nanoprobe(NP) was constructed by coating the surface of rare earth nanomaterials(NaLuF_(4):Yb,Er) with a complex formed by doxorubicin(DOX) and iron ion(Ⅲ).Due to the low toxicity of anthracycline-metal complexes,the damage to normal cells is *** unique acidic microenvironment in tumor cells facilitates the decomposition and gradual release of DOX from the DOX-Fe *** addition,the DOX-Fe complex can convert near-infrared(NIR) light into heat energy,which promotes the decomposition of the complex,further enhancing the release of DOX in the tumor *** change of ratio fluorescence of rare earth nanomaterials at 660 and 1550 nm after DOX release enables visual monitoring of drug release,which can potentially improve the chemotherapeutic *** vitro experiments established that RENPs@DOX-Fe NPs with NIR illumination had good therapeutic efficacy in *** work provides new insights into designing tumor microenvironment-responsive nanoprobes for chemotherapy with minimal side effects.

关键词： Rare earth nanoprobes Fluorescence Ratiometric imaging DOX Chemotherapy

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Exploring the ultrahigh rolling contact fatigue life of M50 bearing steel by adjusting the cryogenic sequence

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Journal of Materials Science & Technology 2024年第2期169卷 243-250页

作者： Xin Cai Xiaoqiang Hu Xingyu Lu Hongwei liu Yanfei cao Dianzhong Li Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China

The influence of different cryogenic sequences on the rolling contact fatigue(RCF)life of M50-bearing steel has been *** results show that direct cryogenic treatment after quenching can effectively improve RCF *** L_(10)life is strikingly 5 times longer than that with cryogenic treatment after *** is caused by the distinct lattice construction of martensite and the transformation of retained *** secondary nanocarbides and fine twins are formed via cryogenic treatment before tem-pering compared with cryogenic treatment after *** improvement in the RCF life of the steel is attributed to the joint effects of the secondary nanocarbides and twin boundaries with a width of 5-13 nm,which delays significantly crack initiation and *** study highlights a common method to improve the service life of high-carbon and high-alloy steels by adjusting the cryogenic se-quence.

关键词： M50 steel Cryogenic treatment Rolling contact fatigue life Carbide Twin

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Fast spreading of surface ozone in both temporal and spatial scale in Pearl River Delta

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Journal of Environmental Sciences 2024年第3期137卷 540-552页

作者： Tianhui cao Haichao Wang Lei Li Xiao Lu Yiming liu Shaojia Fan School of Atmospheric Sciences Sun Yat-sen University and Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai)Zhuhai 519082China Guangdong Provincial Observation and Research Station for Climate Environment and Air Quality Change in the Pearl River Estuary Key Laboratory of Tropical Atmosphere-Ocean SystemMinistry of EducationZhuhai 519082China

Surface ozone(O_(3))is a major air pollutant and draw increasing attention in the Pearl River Delta(PRD),***,we characterize the spatial-temporal variability of ozone based on a dataset obtained from 57 national monitoring sites during *** results show that:(1)the seasonal difference of ozone distribution in the inland and coastal areas was significant,which was largely affected by the wind pattern reversals related to the East Asian monsoon,and local ozone production and destruction;(2)the daily maximum 8hr average(MDA8 O_(3))showed an overall upward trend by 1.11 ppbv/*** the trends in the nine cities varied differently by ranging from-0.12 to 2.51 ppbv/*** hot spots of ozone were spreading to southwestern areas from the central areas since *** ozone is becoming a year-round air pollution problem with the pollution season extending to winter and spring in PRD region.(3)at the central and southwestern PRD cities,the percentage of exceedance days from the continuous type(defined as≥3 days)was ***,the ozone concentration of continuous type was much higher than that of scattered exceedance type(<3 days).In addition,although the occurrence of continuous type starts to decline since2017,the total number of exceedance days during the continuous type is *** results indicate that it is more difficult to eliminate the continuous exceedance than the scatter pollution days and highlight the great challenge in mitigation of O_(3)pollution in these cities.

关键词： Surface ozone pollution Ozone trend Spatial and temporal variability Pearl River Delta Pollution mitigation

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Eosinophils promote CD8+ T cell memory generation to potentiate anti-bacterial immunity

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Signal Transduction and Targeted Therapy 2024年第3期9卷 1230-1243页

作者： Jun Zhou Jiaqi liu Bingjing Wang Nan Li Juan liu Yanmei Han Xuetao cao Institute of Immunology Zhejiang University School of MedicineHangzhou 310058China National Key Laboratory of Immunity and Inflammation Institute of ImmunologyNaval Medical UniversityShanghai 200433China Department of Immunology Center for ImmunotherapyInstitute of Basic Medical SciencesPeking Union Medical CollegeChinese Academy of Medical SciencesBeijing 100005China Institute of Immunology College of Life SciencesNankai UniversityTianjin 300071China

Memory CD8+T cell generation is crucial for pathogen elimination and effective vaccination against *** cellular and molecular circuitry that underlies the generation of memory CD8+T cells remains *** can modulate inflammatory allergic responses and interact with lymphocytes to regulate their functions in immune *** we report that eosinophils are required for the generation of memory CD8+T cells by inhibiting CD8+T cell ***-deficient mice display significantly impaired memory CD8+T cell response and weakened resistance against Listeria monocytogenes(L.m.)***,eosinophils secrete interleukin-4(IL-4)to inhibit JNK/Caspase-3 dependent apoptosis of CD8+T cells upon *** in ***,active eosinophils are recruited into the spleen and secrete more IL-4 to suppress CD8+T cell apoptosis during early stage of *** in *** transfer of wild-type(WT)eosinophils but not IL-4-deficient eosinophils into eosinophil-deficient mice could rescue the impaired CD8+T cell memory ***,our findings suggest that eosinophil-derived IL-4 promotes the generation of CD8+T cell memory and enhances immune defense against *** study reveals a new adjuvant role of eosinophils in memory T cell generation and provides clues for enhancing the vaccine potency via targeting eosinophils and related cytokines.

关键词： impaired immunity spleen

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台湾泥鳅腐皮病霍乱弧菌的分离与鉴定

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海南热带海洋学院学报 2024年第2期31卷 18-24页

作者：杨宁姜芳燕陈攀马军陈燕曹柳侯兴蓉海南热带海洋学院热带海洋生物资源利用与保护教育部重点实验室海南三亚572022 海南热带海洋学院海南省热带海洋渔业资源保护与利用重点实验室海南三亚572022 海南热带海洋学院崖州湾创新研究院海南三亚572022 琼台师范学院热带生物多样性与资源利用实验室海口571127

为研究台湾泥鳅(Paramisgumus dabryanus ssp.)腐皮病的病原,对其腐皮等病变部位进行细菌分离纯化,获得1株优势菌株,命名为P1,利用革兰氏染色观察其形态特征,利用PCR扩增技术、16S rRNA基因测序,得到病原菌的序列,用MEGA软件构建系统进... 详细信息

为研究台湾泥鳅(Paramisgumus dabryanus ssp.)腐皮病的病原,对其腐皮等病变部位进行细菌分离纯化,获得1株优势菌株,命名为P1,利用革兰氏染色观察其形态特征,利用PCR扩增技术、16S rRNA基因测序,得到病原菌的序列,用MEGA软件构建系统进化树,再结合生理生化分析结果鉴定菌种名称。结果发现:革兰氏染色阴性,弧形,两端钝圆;菌体长1~1.5μm,宽度1~1.2μm,有菌丝和鞭毛,16S rRNA基因1 395 bp。建立系统进化树后发现,P1与霍乱弧菌处于同一分支;生理生化实验结果与霍乱弧菌一致,从而鉴定该菌株为霍乱弧菌(Vibrio cholerae)。药敏实验结果表明,该分离菌株对头孢哌酮、卡那霉菌、万古霉素等10种抗生素高度敏感;对四环素中度敏感;对呋喃唑酮、复方新诺明、克林霉素等17种抗生素耐药。实验结果为台湾泥鳅腐皮病的病原鉴定与药物防治提供参考。

关键词：台湾泥鳅腐皮病霍乱弧菌分离鉴定

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Enhanced population of excited single state strategy:Irradiation and ultrasound dual-response and host tumor-driven nanosensitizers construction in triple synergistic therapy

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Nano Research 2024年第6期17卷 5501-5511页

作者： Yaning Li Mengyan Tian Tianyue Yang Jiayu cao Hongli Chen Jun Guo Pai liu Yi liu State Key Laboratory of Separation Membranes and Membrane Processes School of Materials Science and EngineeringTiangong UniversityTianjin 300387China State Key Laboratory of Separation Membranes and Membrane Processes School of ChemistryTiangong UniversityTianjin 300387China State Key Laboratory of Separation Membranes and Membrane Processes School of Life ScienceTiangong UniversityTianjin 300387China State Key Laboratory of Separation Membrane and Membrane Process&Tianjin Key Laboratory of Green Chemical Technology and Process Engineering School of ChemistryTiangong UniversityTianjin 300387China School of Chemical and Environmental Engineering Wuhan Polytechnic UniversityWuhan 430023China Cangzhou Institute of Tiangong University Cangzhou 061000China

Phototheranostics is an emerging field in synergistic antitumor therapy in which irradiation and sensitizers are combined to produce reactive oxygen species(ROS),bio-images,and high *** of these are arrived from the energy of sensitizers,which located in excited single state(S_(1)).Undeniably,the decentralization of the S_(1)population indirectly decreases the effect of each individual *** this study,a strategy was proposed for enhancing the S_(1)population,and a sensitizer with mitochondrial targeting property,1,4-indolyl iodinated pyrrolo[3,2-b]pyrrole derivative(2I-TPIS),was assembled into adenosine triphosphate(ATP)-responsive nanoparticles(DPA-2I NPs)to achieve dual responses to irradiation and ultrasonication(US)for application to photo-sonodynamic therapy(PSDT).Compared with monotherapies,2I-TPIS generated more ROS in PSDT,inducing mitochondrial autophagy and apoptosis,which in turn triggered immunogenic cell death(ICD).Subsequently,DPA-2I NPs were constructed and self-assembled with the chemotherapeutic agents DPA-Cd and 2I-TPIS to achieve a triple synergistic strategy involving chemotherapy(CT)and ***-2I NPs exhibited absolute sensitization,intra-tumoral overexpression of ATP,and ***,the biosafety and potent antitumor efficiency of the DPA-2I NP-based“PSDT+CT”therapy were revealed using a 4T1 tumor *** study results provide insights into the design of sensitizers possessing a sufficient S_(1)population and a highly efficient tumor ablation capacity derived from molecular structural modulation,further enabling triple synergistic antitumor therapies,and expanding the clinical application of sensitizers.

关键词： triphosphate(ATP)-activated nano-sensitizers photo-sonodynamic therapy aggregation-induced emission enhanced excited state population

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