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Sr-Nd isotope geochemistry of eolian dust of the arid-semiarid areas in China: Implications for loess provenance and monsoon evolution

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Chinese Science Bulletin 2006年第12期51卷 1401-1412页

作者： RAO Wenbo YANG jiedong CHEN Jun li Gaojun Department of Earth Sciences Nanjing University Nanjing 210093 China

Minerals and rocks have distinct 87Sr/86Sr and 143Nd/144Nd ratios, depending on their geological origin and ages, and these isotope ratios are less altered than elemental composition during transport in the atmosphere or after deposition as sediments, thus stable isotopes of Sr and Nd have great potential as tracers for provenance and trans- port of materials. During the hypergene process, Sr isotope ratios of sediments are controlled by their parent rocks, particle sizes and chemical weathering. In general, the higher the Sr isotope ratios of parent rocks, and/or the more the fine-grained fractions, and/or the stronger the chemical weathering, thus the higher the Sr isotope ratios of sediments. On the contrary, there are lower Sr isotope ratios of sedi- ments. Nd isotope ratios of sediments, independent of their particle sizes and chemical weathering, are only associated with parent rocks. For the prove- nance of the Chinese Loess Plateau, different re- seachers drew discordant and even contradictory conclusions by using the method of Sr-Nd isotopic tracing. From the previous Nd isotope data, it is con- sidered that the Tarim Basin, deserts in the central and west parts of Inner Mongolia and the Tibetan Plateau are the main sources of the Chinese Loess Plateau, and are also manufacturers for eolian dust of the Far East regions, together with the Chinese Loess Plateau. Sr isotope ratios of eolian dust are solely affected by wind sorting and weather- ing-pedogenesis due to its homogeneous composi- tion in the Chinese Loess Plateau. Wind sorting isrelated to the East Asian winter monsoon but weath- ering-pedogenesis is mainly associated with the East Asian summer monsoon. Studies on Sr isotopic compositions of the loess-paleosol sequence suggest that 87Sr/86Sr ratios in acid-soluble materials are an index for chemical weathering intensity of the Chi- nese Loess Plateau, indicating the East Asian sum- mer monsoon variations, whereas 87Sr/86Sr ratios in acid-insoluble m

关键词：锶-钕同位素季风黄土干旱-半干旱地区地球化学

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Anti-corrosive Hybrid Electrolytes for Rechargeable Aqueous Zinc Batteries

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Chemical Research in Chinese Universities 2021年第2期37卷 328-334页

作者： WANG Jia QIU Huayu ZHAO Zhiming ZHANG Yuchen ZHAO Jingwen MA Yinglei li jiedong XING Min li Guicun CUI Guanglei College of Materials Science and Engineering Qingdao University of Science and TechnologyQingdao266042P.R.China Qingdao Industrial Energy Storage Research Institute Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao266101P.R.China

Aqueous zinc(Zn)-metal cells with cost-effective components and high safety have long been a promising large-scale energy storage system,but Zn anodes are intrinsically unstable with common aqueous electrolytes,causing substantial underutilization of the theoretical *** this work,we report a strictly neutral aqueous Zn electrolyte at a low cost by leveraging the dynamic hydrolysis equilibrium of a dual-salt Zn(Ac)2/NaAc(Ac:CH3COO−)*** the pH regulation,the corrosion and hydrogen evolution encountered in Zn anodes can be suppressed *** hybrid aqueous electrolyte not only enables dendrite-free Zn plating/stripping at a nearly 95%Coulombic efficiency[an increase of 24%compared to that of the single-salt 1 mol/L Zn(Ac)2 electrolyte],but also supports the reversible operation of Zn cells paired with either Na3V2(PO4)3 or iodine cathodes—the former delivers a high output voltage of 1.55 V with an energy level of 99.5 W·h/kg(based on the mass of the cathode),and the latter possesses a high specific capacity of 110.9 mA·h/g while yielding long-term cyclability(thousands of cycles).These findings open up a new avenue of modifying practical electrolytes having targeted properties to stabilize multivalent metal anodes.

关键词： pH regulation Aqueous Zn-based battery Na3V2(PO4)3 cathode

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Revealing the importance of suppressing formation of lithium hydride and hydrogen in li anode protection

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Interdisciplinary Materials 2023年第2期2卷 337-347页

作者： Gaojie Xu Xiaofan Du Shenghang Zhang jiedong li Shanmu Dong Zhiwei Hu Guanglei Cui Qingdao Industrial Energy Storage Research Institute Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdaoChina Shandong Energy Institute QingdaoChina Qingdao New Energy Shandong Laboratory QingdaoChina Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijingChina School of Future Technology University of Chinese Academy of Sciences BeijingChina Max Planck Institute for Chemical Physics of Solids DresdenGermany

The reviving of the“Holy Grail”lithium metal batteries(LMBs)is greatly hindered by severe parasitic reactions between li anode and ***,first,we comprehensively summarize the failure mechanisms and protection principles of the li ***,despite being in dispute,the formation of lithium hydride(liH)is demonstrated to be one of the most critical factors for li anode ***,we trace the research history of liH at electrodes of lithium *** LMBs,liH formation is suggested to be greatly associated with the generation of H_(2)from li/electrolyte intrinsic parasitic reactions,and these intrinsic reactions are still not fully ***,density functional theory calculations reveal that H_(2)adsorption ability of representative li anode protective species(such as liF,li_(3)N,BN,li_(2)O,and graphene)is much higher than that of li and ***,as an important supplement of well-known lithiophilicity theory/high interfacial energy theory and three key principles(mechanical stability,uniform ion transport,and chemical passivation),we propose that constructing an artificial solid electrolyte interphase layer enriched of components with much higher H_(2)adsorption ability than li will serve as an effective principle for li anode *** summary,suppressing formation of liH and H_(2)will be very important for cycle life enhancement of practical LMBs.

关键词： density functional theory H_(2)adsorption ability li anode protection lithium hydride solid electrolyte interphase

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Cu_2GeS_3 derived ultrafine nanoparticles as high-performance anode for sodium ion battery

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Science China Materials 2018年第9期61卷 1177-1184页

作者： lin Fu Chaoqun Shang Jun Ma Chuanjian Zhang Xiao Zang Jingchao Chai jiedong li Guanglei Cui Qingdao Industrial Energy Storage Research Institute Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101China

Germanium based sulfides are potentially attractive as anode material for sodium ion batteries but rarely investigated. Herein, we firstly investigated Na^＋storage properties of pristine Cu2GeS3（PCGS） and found an effective strategy to improve its performance by a single lithiation/delithiation cycle obtaining ultrafine nanoparticle copper germanium sulfide（NCGS）. The lithiation/delithiation process leads to the formation of a stable li-containing solid electrolyte interphase film and a significant improvement of sodiation kinetics. Therefore, the NCGS anode delivers favorable capacity retention and better rate capability compared with that of a PCGS whether in the half cell or in the full cell,showing great promise for energy storage application.

关键词： sodium ion battery nanoparticle copper germaniumsulfide anode material full cell

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Unshackling the reversible capacity of SiO_(x)/graphite-based full cells via selective liF-induced lithiation

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Science China Materials 2022年第9期65卷 2335-2342页

作者： Jinran Sun Shu Zhang Qinghua Zhang Yunchuan Xin Shamu Dong Haisheng liu jiedong li Chao Wang Chenglong Lu Wuhai Yang Tingting liu Jun Ma lin Gu Guanglei Cui Qingdao Industrial Energy Storage Research Institute Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China

Composite Si@SiO_(x)/C anodes with high specific capacity are considered the most promising alternatives to graphite in industrial lithium-ion ***,their cycling stability remains a limiting factor,which originates from the severe volume deformation of silicon-derived *** this work,the cyclabilities of composite anodes are improved by unshackling the highly reversible lithium storage capabilities from the redundancy capacity of the anode materials.A selective liF-induced lithiation strategy is proposed based on exploiting interface separation energy differences between liF and the active *** interesting preferential redeposition of liF is observed at the Si@SiO_(x) particles,which differentiates the otherwise similar lithiation potentials of liC_(x) and li_(15)Si_(4),thereby enabling lithium storage in graphite that was previously *** resulting full cell exhibits better rate and cycling performances without sacrificing specific *** an ultra-high area capacity full cell(4.9 mA h cm^(-2)),the capacity retention increases markedly from 66.1% to 94.2% after 300 *** selective lithiation strategy developed herein is feasible for practical industrial applications,and importantly,it requires no changes to the existing mature lithium-ion battery manufacturing *** study offers a new approach for the development of silicon/graphite composite anodes with long cycling lifetimes.

关键词： silicon-based composite anode cyclability selective lithiation liF interface separation energy

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基于频域分析的名义控制增益估计

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指挥与控制学报 2024年第5期10卷 637-642页

作者：李杰栋孙明玮王永帅陈增强南开大学人工智能学院天津300350 天津工业大学人工智能学院天津300387

针对自抗扰控制器在处理一类欠阻尼对象时未考虑闭环带宽对名义控制增益的影响,提出一种基于频域分析的估计方法来确定名义控制增益。通过模态分解技术,分析了具有两个本征模态的欠阻尼系统的频率响应。针对这类欠阻尼对象,探讨了在相... 详细信息

针对自抗扰控制器在处理一类欠阻尼对象时未考虑闭环带宽对名义控制增益的影响,提出一种基于频域分析的估计方法来确定名义控制增益。通过模态分解技术,分析了具有两个本征模态的欠阻尼系统的频率响应。针对这类欠阻尼对象,探讨了在相同闭环带宽下确定名义控制增益的指导规则,并研究了不同闭环带宽对同一欠阻尼对象名义控制增益的影响。仿真结果表明,基于频域分析的名义控制增益估计方法能够准确地确定名义控制增益。

关键词：名义控制增益自抗扰控制频域分析模态分解

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磁悬浮储能飞轮技术研究及应用示范

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上海节能 2017年第2期 80-84页

作者：刘付成李结冻李延宝吕奇超上海航天控制技术研究所上海市空间智能控制技术重点实验室

飞轮储能系统是利用飞轮加、减速旋转实现电能与机械能相互转换的装置。介绍了飞轮储能的基本原理以及磁悬浮储能飞轮研究的关键技术,并对飞轮储能的目标市场进行分析。

关键词：飞轮储能基本原理目标市场

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基于有限元的高速储能飞轮转子设计

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飞控与探测 2018年第3期1卷 47-53页

作者：李结冻吕东元陈军委吕奇超上海航天控制技术研究所上海201109 上海市空间智能控制技术重点实验室上海201109

利用解析法计算出高速储能飞轮转子护套所需过盈量的范围,利用有限元软件进行静止状态和工作状态下护套的应力分析,仿真结果与解析计算结果基本吻合,验证了结果的有效性。分析了装配过程中,护套加热产生的热变形,为护套的过盈安装提供... 详细信息

利用解析法计算出高速储能飞轮转子护套所需过盈量的范围,利用有限元软件进行静止状态和工作状态下护套的应力分析,仿真结果与解析计算结果基本吻合,验证了结果的有效性。分析了装配过程中,护套加热产生的热变形,为护套的过盈安装提供了依据。最后,对飞轮转子的模态进行了仿真和实验,两者结果的误差为0.6%。

关键词：解析法有限元热变形过盈

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Nurtured to follow the crowd:A twin study on conformity

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Chinese Science Bulletin 2013年第10期58卷 1175-1180页

作者： li XueTing ZHANG jiedong HUANG Yi XU Miao liU Jia State Key Laboratory of Cognitive Neuroscience and Learning Beijing Normal University

Why are some of us easily affected by the majority's action whereas others frequently make unique choices? In this behavioral genetic study on conformity,we designed a social episode to investigate the genetic and environmental origin of individual differences in conforming behavior during psychosocial ***,107 monozygotic(MZ) and 74 dizygotic(DZ) twin pairs(age 7-19) were asked to choose a pen from a group of pens either with the majority color or with the minority *** found that the resemblance between MZ twins in selecting the pen with the majority color was not significantly higher than that between DZ twins,suggesting that individual differences in conformity are due almost exclusively to the ***,biometric model fitting revealed that the shared environmental component played a sizable role in shaping individuals' conforming behavior,and the influence increased with age(from 16% to 26%).Taken together,our study suggests that the common family and cultural environment has important ramifications for conformity.

关键词：双生子文化环境培育行为研究个体差异双胞胎心理发展模型拟合

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Progress in the mechanism and targeted drug therapy for COPD

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Signal Transduction and Targeted Therapy 2020年第1期5卷 359-378页

作者： Cuixue Wang jiedong Zhou Jinquan Wang Shujing li Atsushi Fukunaga Junji Yodoi Hai Tian Department of Basic Medicine Medical CollegeShaoxing UniversityShaoxing 312000China Division of Dermatology Department of Internal RelatedKobe University Graduate School of MedicineKobe 650-0017Japan Laboratory of Infection and Prevention Department of Biological ResponseInstitute for Virus ResearchKyoto UniversityKyoto 606-8501Japan Jiaozhimei Biotechnology(Shaoxing)Co LtdShaoxing 312000China

Chronic obstructive pulmonary disease(COPD)is emphysema and/or chronic bronchitis characterised by long-term breathing problems and poor *** prevalence of COPD has increased over the last decade and the drugs most commonly used to treat it,such as glucocorticoids and bronchodilators,have significant therapeutic effects;however,they also cause side effects,including infection and *** we reviewed the pathogenesis and progression of COPD and elaborated on the effects and mechanisms of newly developed molecular targeted COPD therapeutic *** these new drugs,we focussed on thioredoxin(Trx).Trx effectively prevents the progression of COPD by regulating redox status and protease/anti-protease balance,blocking the NF-κB and MAPK signalling pathways,suppressing the activation and migration of inflammatory cells and the production of cytokines,inhibiting the synthesis and the activation of adhesion factors and growth factors,and controlling the cAMP-PKA and PI3K/Akt signalling *** mechanism by which Trx affects COPD is different from glucocorticoid-based mechanisms which regulate the inflammatory reaction in association with suppressing immune *** addition,Trx also improves the insensitivity of COPD to steroids by inhibiting the production and internalisation of macrophage migration inhibitory factor(MIF).Taken together,these findings suggest that Trx may be the ideal drug for treating COPD.

关键词： drugs targeted inhibiting

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