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Journal of Materiomics 2024年第3期10卷 643-651页

作者： Haocheng Yuan Kaihua Wen Shundong Guan Ying Liang Yu-Hsien Wu Sijie liu Dengfeng Yu liangliang Li Ce-Wen Nan State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing100084China

Ether-based electrolytes with excellent reductive stability are compatible with sodium(Na)metal an-odes,which enables stable cycling for Na metal batteries even in an anode-free ***,the practical applications of anode-free sodium batteries(AFSBs)with a high theoretical energy density are restricted by the low-rate capability and limited cycle *** we demonstrate that the mechanical properties of the separators,which have been overlooked in previous studies,can significantly affect the cycling stability of AFSBs due to the intrinsic softness of Na and the large volume variation of AFSBs during Na plating/*** using various separators including polypropylene(PP),polyethylene(PE),PP/PE/PP tri-layer,and aluminum oxide-coated separators,we find that the balanced elastic moduli of the separator along the machine direction and transverse direction are crucial for enabling highly effi-cient Na plating and unlocking the 4 C fast-charging capability of the AFSBs at practical conditions including a high cathode active mass loading(13.5 mg/cm^(2)),lean electrolyte addition(8.8 mL/cm^(2)),and no pre-sodiation *** study provides an important separator design principle for the develop-ment of high-rate and long-cycle-life AFSBs.

关键词： Sodium metal Elastic modulus Ether electrolyte Sodium battery Short circuit

Dynamic active sites on plasma engraved Ni hydroxide for enhanced electro-catalytic urea oxidation

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Journal of Energy Chemistry 2022年第8期31卷 150-158,I0005页

作者： Dan Li Yuefeng Zhang Xiaomin Zhou Chao Huang Ying Wen liangliang liu Qingwei Li Yue Xu Yuzheng Wu Qingdong Ruan Yinghe Ma Fangyu Xiong Dezhi Xiao Pei liu Guomin Wang Babak Mehrjou Bin Wang Hao Li Rongsheng Chen Hongwei Ni Zhiyuan Zeng Paul K.Chu Department of Physics Department of Materials Science and Engineeringand Department of Biomedical EngineeringCity University of Hong KongTat Chee AvenueKowloon 999077Hong KongChina The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan 430081HubeiChina Catalysis Theory Center Department of PhysicsTechnical University of Denmark2800 Kongens LyngbyDenmark

The urea oxidization reaction(UOR)is an important anodic reaction in electro-catalytic energy ***,the sluggish reaction kinetics and complex catalyst transformation in electrocatalysis require activity improvement and better mechanistic understanding of the state-of-the-art Ni(OH)_(2) ***,by utilizing low-temperature argon(Ar)plasma processing,tooth-wheel Ni(OH)_(2) nanosheets self-supported on Ni foam(Ni(OH)_(2)-Ar)are demonstrated to have improved UOR activity compared to conventional Ni(OH)_(2).The theoretical assessment confirms that the edge has a smaller cation vacancy formation energy than the basal plane,consequently explaining the structural *** and quasi-operando methods are employed to investigate the dynamic evolution of the Ni(OH)_(2) film in *** crucial dehydrogenation products of Ni(OH)_(5)O^(-)intermediates are identified to be stable on the etched edge and explain the enhanced UOR in the low potential *** addition,the dynamic active sites are monitored to elucidate the reaction mechanism in different potential ranges.

关键词： Urea oxidization reaction Ni hydroxide Plasma processing Dehydrogenation Active site

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财政纵向失衡会否抑制技术创新

中国科技论坛 2022年第6期 68-74,100页

作者：刘亮亮南京财经大学财政与税务学院江苏南京210023

从财政纵向失衡这一全新视角诠释技术创新问题,不仅是全面深化体制改革向纵深推进的关键所在,也是推进创新驱动发展战略布局的重要内容,进而为经济高质量发展助力。本文利用2001—2018年省级面板数据,借助空间杜宾模型分析财政纵向失衡... 详细信息

从财政纵向失衡这一全新视角诠释技术创新问题,不仅是全面深化体制改革向纵深推进的关键所在,也是推进创新驱动发展战略布局的重要内容,进而为经济高质量发展助力。本文利用2001—2018年省级面板数据,借助空间杜宾模型分析财政纵向失衡对技术创新的影响及其作用机制。结果表明:财政纵向失衡不仅会显著抑制本地区技术创新水平的提升,还通过空间溢出效应负向作用于周边地区技术创新;“为创新而竞争”弱化财政纵向失衡对本地区及周边地区技术创新的负向作用,政府间转移支付则强化财政纵向失衡对本地区及周边地区技术创新的负向作用。因此,需要适度降低财政纵向失衡程度、规范政府竞争行为、优化政府间转移支付制度,以便进一步提升技术创新水平。

关键词：财政纵向失衡技术创新空间效应

The protective effect of Limosilactobacillus reuteri against gestational diabetes mellitus through restoring intestinal microbiota homeostasis and attenuating inflammation in mice

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Food Science and Human Wellness 2024年

作者： Ce Qi Haowen Zhang Zhenli liu Xiaolin liu Lintao Zhang liangliang You Jin Sun Institute of Nutrition and Health， Qingdao University QingDao Newhope QinPai Dairy Co.Ltd. Tai'an Maternal and Child Health Hospital Jiaozhou Maternity and Child Health and Family Planning Service Center

Limosilactobacillus reuteri QS01 is potential probiotic isolated from the intestinal microbiota of healthy women in early pregnancy. In the current study， we examined whether QS01 can prevent gestational diabetes mellitus (GDM) in an enhanced mouse model of the condition. Female C57BL/6J mouse offspring (F1 generation) born to dams fed a control (CON) or low-protein diet (GDM group) during gestation and lactation were used. Pregnant F1 mice fed a standard diet were randomly assigned to 5 groups: CON， GDM， and GDM mice treated with metformin， QS01 or Lacticaseibacillus rhamnosus HN001. An oral glucose tolerance test was performed before sacrifice at gestational day 17. Glucose tolerance was significantly ameliorated by all three treatments. QS01 supplementation fortified the intestinal mucosal barrier and inhibited the escalation of plasma inflammatory cytokines. QS01 treatment altered the cecal microbiota composition and function. Plasma and cecal metabolite profiles were modulated by QS01， prominently demonstrating significant upregulation of indole lactate and L-tryptophan in plasma and 5-hydroxy-tryptophan in the cecum， positively correlated with gut Lactobacillus abundance. In summary， QS01 plays a role in preventing GDM by remodeling the intestinal microbiota， reinforcing the intestinal mucosal barrier and alleviating chronic inflammation.

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Recent techniques on analyses and characterizations of shale gas and oil reservoir

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Energy Reviews 2024年第2期3卷 31-62页

作者： Yamin Wang Zhenlin Wang Zhengchen Zhang Shanshan Yao Hong Zhang Guoqing Zheng Feifei Luo Lele Feng Kouqi liu liangliang Jiang Institute of Energy Peking UniversityBeijing100871China Petro China Xinjiang Oilfield Company Karamay834000China School of Mining and Petroleum Engineering University of AlbertaEdmontonAlbertaCanada College of Construction Engineering Jilin UniversityChangchun130061China School of Safety Engineering China University of Mining and TechnologyXuzhouChina Department of Chemical and Petroleum Engineering University of CalgaryCalgaryAlbertaCanada

This article offers a comprehensive review focused on the analysis and characterization of shale reservoirs,unconventional hydrocarbon resources that uniquely serve as both the source reservoir for gas and oil,and the *** analyze and characterize shale reservoirs,pore structure,rock components and rock mechanical properties are three main factors to *** three main factors are necessary for successful field operations in shale *** now,there are various techniques utilized to characterize these three ***,this study delves into the intricacies of shale reservoir's pore structure,rock components and mechanical properties under varying geological conditions,summarizing various techniques utilized to characterize these properties in previous *** study also discusses the role of analytical techniques in understanding the complex interactions between kerogen and the surrounding mineral *** providing a summary of various techniques operated on the mentioned three main factors,this paper supplies the effective and optimal technique on analyzing different properties of shale ***,the paper aims to contribute to more effective resource assessment and production optimization in shale reservoirs,offering insights that have significant implications for the future of unconventional hydrocarbon extraction.

关键词： Shale reservoir Pore structure Rock components Mechanical test Kerogen

Sustainable development of unconventional resources: Analysis of the transient linear flow oriented straight-line analysis technique

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Energy Reviews 2024年第1期3卷 49-75页

作者： Dan Xue liangliang Jiang Zixiang Wei Maojie Chai Jiang liu Peng Deng Fuhe Lin Jian Li Jiansheng Zhang Zhangxing Chen Department of Chemical and Petroleum Engineering University of CalgaryCalgaryAlbertaCanada Guangdong University of Petrochemical and Technology MaomingChina School of Mathematics and Data Science Shaanxi University of Science and TechnologyXi'anChina Department of Energy and Power Engineering Tsinghua UniversityBeijingChina Eastern Institute for Advanced Study NingboChina China University of Petroleum(Beijing) BeijingChina

On the backdrop of dwindling conventional reserves,unconventional reservoirs have emerged as a pivotal chapter in resource *** their challenges,such as low permeability,complex fluid storage,and flow mechanisms,hydraulic fracturing technology has underpinned the development of unconventional ***,this has brought about a shift in the sequence of flow regimes,e.g.,the transient radial flow regime has been largely shortened by the lengthy transient linear flow regime due to the low permeability of unconventional ***,straight-line analysis(SLA),the simplest technique in rate transient analysis(RTA),is a fundamental and potent tool for swiftly extracting reservoir and hydraulic fracture information,estimating oil and gas reserves,and furnishing crucial initial data for subsequent historical matching ***,there is currently a dearth of review papers pertaining to a necessary guide of applying SLA in various transient linear flow(TLF)regimes and different unconventional ***,this paper commences by elucidating the classification of TLF regimes,commonly used methods for recognizing flow regimes,and the diverse SLA methods used for different TLF ***,it delves into a discussion of different modification techniques for variable rate/flowing pressure,gas phase,complex reservoir characteristics in unconventional reservoirs,and dynamic drainage area concepts ***,the application of SLA in specific domains,namely core analysis and the flowback period,is *** culminates by surveying the advancements through an integration of novel technologies to enhance estimation *** paper also highlights certain drawbacks of current SLA technology and proposes new research ***,this paper would serve as an indispensable resource,offering foundational knowledge for the application of SLA in TLF to promote the production of global unconventional resources in a c

关键词： Unconventional reservoirs Straight-line analysis(SLA) Transient linear flow(TLF) Oil/gas reserves Hydraulic fracture information

Large-Scale Carbon Dioxide Storage in Salt Caverns:Evaluation of Operation,Safety,and Potential in China

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Engineering 2024年第9期40卷 226-246页

作者： Wei liu Xiong Zhang Jifang Wan Chunhe Yang liangliang Jiang Zhangxin Chen Maria Jose Jurado Xilin Shi Deyi Jiang Wendong Ji Qihang Li State Key Laboratory of Coal Mine Disaster Dynamics and Control Chongqing UniversityChongqing 400044China China Energy Digital Technology Group Co.Ltd. Beijing 100044China Institute of Rock and Soil Mechanics Chinese Academy of SciencesWuhan 430064China Department of Chemical and Petroleum Engineering University of CalgaryCalgaryAB T2N 1N4Canada Eastern Institute of Technology Ningbo 315200China Geosciences Barcelona CSIC Spanish National Research CouncilBarcelona 08028Spain

Underground salt cavern CO_(2) storage(SCCS)offers the dual benefits of enabling extensive CO_(2) storage and facilitating the utilization of CO_(2) resources while contributing the regulation of the carbon *** economic and operational advantages over traditional carbon capture,utilization,and storage(CCUS)projects make SCCS a more cost-effective and flexible *** the widespread use of salt caverns for storing various substances,differences exist between SCCS and traditional salt cavern energy storage in terms of gas-tightness,carbon injection,brine extraction control,long-term carbon storage stability,and site selection *** distinctions stem from the unique phase change characteristics of CO_(2) and the application scenarios of ***,targeted and forward-looking scientific research on SCCS is *** paper introduces the implementation principles and application scenarios of SCCS,emphasizing its connections with carbon emissions,carbon utilization,and renewable energy peak *** delves into the operational characteristics and economic advantages of SCCS compared with other CCUS methods,and addresses associated scientific *** this paper,we establish a pressure equation for carbon injection and brine extraction,that considers the phase change characteristics of CO_(2),and we analyze the pressure during carbon *** comparing the viscosities of CO_(2) and other gases,SCCS’s excellent sealing performance is *** on this,we develop a long-term stability evaluation model and associated indices,which analyze the impact of the injection speed and minimum operating pressure on *** countermeasures to ensure stability are *** selection criteria for SCCS are established,preliminary salt mine sites suitable for SCCS are identified in China,and an initial estimate of achievable carbon storage scale in China is made at over 51.8-77.7 million tons,utilizing only 20%-30%volume

关键词： Carbon-neutrality Salt cavern Large-scale CO_(2)storage Injection and withdrawal Stability analysis

THRESHOLD SCHEMES WITH WEIGHTS

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Journal of Systems Science & Complexity 2004年第4期17卷 578-581页

作者： XIAOliangliang liuMulan AcademyofMathematicsandSystemsScience ChineseAcademyofSciencesBeijing100080China

In this paper, we present the model of threshold schemes with weights as a natural generalization of Shamir's threshold scheme and show how to apply the model to construct secret sharing schemes by two examples.

关键词： secrete sharing schemes threshold scheme weight

Experimental study on the properties of CMTs-incorporated geopolymers prepared at low temperatures

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Journal of Southeast University(English Edition) 2024年第3期40卷 295-303页

作者： Jin Quanbin liu Zhibin Lu liangliang Zhang Yun Luo Tingyi Tang Yasen Jiangsu Key Laboratory of Low Carbon and Sustainable Geotechnical Engineering Southeast UniversityNanjing 211189China Guangxi Beitou Construction and Investment Group Co. Ltd.Nanning 530028China

Considering that copper mine tailings(CMTs)are commonly mixed with ordinary Portland cement,fly ash(FA),and kaolin to produce geopolymers,to make full use of CMTs,the properties of geopolymers manufactured under different material mass ratios and curing methods(standard curing,water bath curing,and 60℃curing)are evaluated with significantly increased dosage of *** and unconfined compressive strength tests,X-ray diffraction,field emission scanning electron microscopy,and energy dispersive spectroscopy are used to determine the physical and mechanical properties,microstructure,and mineral composition of ***,costs and CO 2 emissions of specimens with different material mass ratios during the preparation processes are *** results show that during the geopolymerization of low-calcium materials,various geopolymer gels,including calcium silicate,calcium silicoaluminate,and mainly sodium silicoaluminate gels,*** solid waste,cost,and carbon dioxide emission reductions can reach 100%,166.3 yuan/t,and 73.3 kg/t,*** a curing condition of 60℃,the sample with a CMTs mass fraction of 70%and an FA mass fraction of 30%meets the requirements of porosity,compressive *** resource utilization of CMT and FA is realized in a more economical way.

关键词： copper mine tailings geopolymer solid wastes characterization techniques curing methods carbon dioxide emission

四方钨青铜结构NaSr_(2)Nb_(5)O_(15)铁电陶瓷的致密化

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硅酸盐学报 2021年第9期49卷 1943-1951页

作者：吕蕊刘亮亮王永强太原理工大学材料科学与工程学院太原030024

以TTB结构的NaSr_(2)Nb_(5)O_(15)(NSN)为研究对象,采用常规固相烧结法合成的NSN和中间体(NaNbO3和SrNb2O6)粉体作为基体,利用熔盐法合成大尺寸的NSN微晶作为晶种。通过原料设计,制备出致密的NSN陶瓷。研究了晶种含量对NSN陶瓷烧结行为... 详细信息

以TTB结构的NaSr_(2)Nb_(5)O_(15)(NSN)为研究对象,采用常规固相烧结法合成的NSN和中间体(NaNbO3和SrNb2O6)粉体作为基体,利用熔盐法合成大尺寸的NSN微晶作为晶种。通过原料设计,制备出致密的NSN陶瓷。研究了晶种含量对NSN陶瓷烧结行为和微观组织的影响。结果表明:在基体中加入晶种,通过反应烧结可以制备出致密的NSN陶瓷;随着晶种含量的增加,NSN陶瓷的微观组织结构发生明显变化。

关键词：铌酸锶钠致密化微观结构无铅陶瓷