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Crossover effects of transition metal ions in high-voltage lithium metal batteries

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Nano Research 2023年第6期16卷 8417-8424页

作者： Wanxia Li Yulin jie Yunhua Chen Ming yang Yawei Chen Xinpeng Li Youzhang Guo Xianhui Meng Ruiguo Cao Shuhong Jiao Hefei National Laboratory for Physical Science at the Microscale CAS Key Laboratory of Materials for Energy ConversionDepartment of Materials Science and EngineeringUniversity of Science and Technology of ChinaHefei 230026China NIO Incorporation Shanghai 201800China Science and Technology on Power Sources Laboratory Tianjin Institute of Power SourcesTianjin 300384China

Enhancing the cut-off voltage of high-nickel layered oxide cathodes is an efficient way to obtain higher energy density of lithiummetal batteries(LMBs).However,the phase transition of the cathode materials and the uncontrolled decomposition of the electrolytes at high voltage can lead to irreversible dissolution of transition metal ions,which might cause the crossover effects on the lithium metal ***,the mechanism and electrolyte dependence of the crossover effects for Li metal anodes are still ***,we investigate the crossover effects between LiNi_(0.8)Mn_(0.1)Co_(0.1)O_(2)and Li-metal anode in two electrolyte *** ether-based electrolyte,its poor oxidation stability results in massive dissolution of transition metal ions,leading to dendrite growth on anode and rapid cells ***,ester-based electrolyte exhibits good electrochemical performances at 4.5 V with little crossover *** study provides an idea for electrolyte systems selection for high-voltage LMBs,and verifies that the crossover effect should not be neglected in LMBs.

关键词： crossover effects lithium-metal batteries high-nickel layered cathodes electrolyte systems dependence transition metals dissolution

声音的“智力游戏”——格特鲁德·斯泰因肖像诗歌中的语言诗学

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外国文学研究 2023年第5期45卷 143-155页

作者：石婕对外经济贸易大学

声音是美国现代主义作家格特鲁德·斯泰因创作的关键词。她在20世纪上半叶创作的百余篇人物肖像诗歌彰显了声音自身的特质和蕴意。总体上,根据意义的来源,诗歌的声音可分为“文字的声音”和“文字间的声音”。本文从斯泰因的听觉意识谈... 详细信息

声音是美国现代主义作家格特鲁德·斯泰因创作的关键词。她在20世纪上半叶创作的百余篇人物肖像诗歌彰显了声音自身的特质和蕴意。总体上,根据意义的来源,诗歌的声音可分为“文字的声音”和“文字间的声音”。本文从斯泰因的听觉意识谈起,分析其诗歌中“临近词音”“声音的转录”“复调的韵律”与“节奏”的音律规则,进而探究其语言诗学的“活动性”“流动性”和“创造性”,解读“智力游戏”中读者的“智性”参与和语言的本体论观点。斯泰因的语言诗学制造了审美主体与审美客体间的距离,一方面,它凸显语言能指与所指的差异,进而拉开艺术表征与现实世界的距离;另一方面,它从感官层面加深了语言与现实世界的联系。斯泰因诗歌中的声音和语言的“智力游戏”观体现了她独特的现代主义美学观。

关键词：格特鲁德·斯泰因声音语言诗学智力游戏审美距离

Sampled-data control of switched affine neural networks 36

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Sampled-data control of switched affine neural networks

高速列车头车外流场气动噪声的仿真与实验研究

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作者： Lingli Xu Feiyue Wu Hongwei Wang jie Lian yang Cao Engineering Dalian University of Technology

ISBN: (纸本)9781538629185

This paper investigates the problem of stabilization for switched afflne neural networks with a sampled-data switching rule,the sampling interval may be variable and *** switching law is considered as a function of the system state at sampling *** single and multiple Lyapunov function methods are employed to design the switching rule *** conditions are given in terms of linear matrix inequalities to guarantee the practical stability of such *** examples illustrate the effectiveness of the obtained results.

关键词： Switched Neural Networks Affine Systems Sampled-data Control

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东北大学学报（自然科学版） 2018年第8期39卷 1137-1142页

作者：姜世杰杨松吴丹闻邦椿东北大学机械工程与自动化学院辽宁沈阳110819

针对高速列车的头车进行全尺寸三维模型和流场流域的创建,并通过k-ε湍流模型计算稳态流场;在稳态流场的基础上,采用宽频带噪声模型计算头车表面的气动噪声源;利用大涡模拟(LES)方法计算瞬态流场,进而获取车身外表面的脉动压力;再基于... 详细信息

针对高速列车的头车进行全尺寸三维模型和流场流域的创建,并通过k-ε湍流模型计算稳态流场;在稳态流场的基础上,采用宽频带噪声模型计算头车表面的气动噪声源;利用大涡模拟(LES)方法计算瞬态流场,进而获取车身外表面的脉动压力;再基于瞬态流场,采用Lighthill声类比理论研究头车远场气动噪声的计算.最后,比较气动噪声的仿真分析结果与实地试验结果,验证了仿真结果的正确性.

关键词：高速列车气动噪声 Lighthill声类比理论仿真分析实地试验

Trends of 7 Organic Solvent-induced Occupational Diseases in Guangdong,from 2006 to 2015

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Biomedical and Environmental Sciences 2020年第11期33卷 862-866页

作者： LI Xu Dong TU Hong Wei CHEN Jia Bing YU Hong Wei ZHANG Run Ze CHEN Pei Liang HU shi jie Guangdong Province Hospital for Occupational Disease Prevention and Treatment Guangzhou 510300GuangdongChina Guangdong Provincial Key Laboratory of Occupational Disease Prevention and Treatment Guangzhou 510300GuangdongChina Guangodng Provincial Center for Diseases Control and Prevention Guangzhou 511430GuangdongChina Department of Epidemiology School of Public HealthSouthern Medical UniversityGuangzhou 510515GuangdongChina

Occupational exposure to organic solvents and the resulting health damage caused by organic solvent-induced occupational diseases(OSODs)have raised concern[1],as they have accounted for more than 70%of occupational-poisoning cases in Guangdong province[2,3].However,there have been limited longitudinal studies examining OSOD patterns and temporal trends with a large sample in Guangdong.

关键词： Guangdong raised Occupational

Optically Controlled Extraordinary Terahertz Transmission of Bi2Se3 Film Modulator

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Photonic Sensors 2019年第3期9卷 268-276页

作者： Junhu ZHOU Tong ZHOU Dongsheng yang Zhenyu WANG Zhen ZHANG jie YOU Zhongjie XU Xin ZHENG Xiang-ai CHENG College of Advanced Interdisciplinary Studies National University of Defense Technology Changsha 410073 China State Key Laboratory of High Performance Computing National University of Defense Technology Changsha 410073 China National Innovation Institute of Defense Technology Academy of Military Sciences PLA China Beijing 100010 China State Key Laboratory of Laser Interaction with Matter Northwest Insti tute of Nuclear Technology Xi'an 710024 China

Standing on the potential for high-speed modulation and switching in the terahertz (THz) regime, all-optical approaches whose response speeds mainly depend on the lifetime of nonequilibrium free carriers have attracted a tremendous attention. Here, we establish a novel bi-direction THz modulation experiment controlled by femtosecond laser for new functional devices. Specifically, time-resolved transmission measurements are conducted on a series of thin layers Bi2Se3 films fabricated straightforwardly on AI2O3 substrates, with the pump fluence range from 25(iJ/cm2 to 200 |iJ/cm2 per pulse. After photoexcitation, an ultrafast switching of THz wave with a full recovery time of ?1 Ops is observed. For a longer timescale, a photoinduced increase in the transmitted THz amplitude is found in the 8 and 10 quintuple layers (QL) BizSR, which shows a thickness-dependent topological phase transition. Additionally, the broadband modulation effect of the 8 QL Bi2Se3 film is presented at the time delays of 2.2ps and 12.5ps which have a maximum modulation depth of 6.4% and 1.3% under the pump fluence of 200(iJ/cm2, respectively. Furthermore, the absorption of a optical phonon at 1.9 THz shows a time-dependent evolution which is consistent with the cooling of lattice temperature.

关键词： Ultrafast optics topological insulator ultrafast photonic devices

The MYC2-PUB22-JAZ4 module plays a crucial role in jasmonate signaling in tomato

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Molecular Plant 2024年第4期17卷 598-613页

作者： Shaofang Wu Chaoyi Hu Changan Zhu Yanfen Fan jie Zhou Xiaojia Xia Kai shi Yanhong Zhou Christine H.Foyer Jingquan Yu Department of Horticulture Zijingang CampusZhejiang UniversityHangzhou 310058China Hainan Institute Zhejiang UniversityYazhou Bay Science and Technology CitySanya 572025China College of Horticulture Northwest Agriculture&Forestry UniversityXianyang 712100China School of Biosciences College of Life and Environmental SciencesUniversity of BirminghamEdgbaston B152TTUK Key Laboratory of Horticultural Plants Growth and Development Agricultural Ministry of ChinaZhejiang UniversityHangzhou 310058China

Jasmonates(JAs),a class of lipid-derived stress hormones,play a crucial role across an array of plant physiological processes and stress *** JA signaling is thought to rely predominantly on the degradation of specific JAZ proteins by SCF^(COI1),it remains unclear whether other pathways are involved in the regulation of JAZ protein ***,we report that PUB22,a plant U-box type E3 ubiquitin ligase,plays a critical role in the regulation of plant resistance against Helicoverpa armigera and other JA responses in *** COI1 physically interacts with JAZ1/2/5/7,PUB22 physically interacts with JAZ1/3/4/***22 ubiquitinates JAZ4 to promote its degradation via the 26S proteasome ***,we observed that pub22 mutants showreduced resistance to ***,whereas jaz4 single mutants and jaz1 jaz3 jaz4 jaz6 quadruple mutants have enhanced *** hypersensitivity of pub22 mutants to herbivores could be partially rescued by JAZ4 ***,we found that expression of PUB22 can be transcriptionally activated by MYC2,thus forming a positive feedback circuit in JA *** noticed that the PUB22-JAZ4 module also regulates other JA responses,including defense against ***,inhibition of root elongation,and anthocyanin *** together,these results indicate that PUB22 plays a crucial role in plant growth and defense responses,together with COI1-regulated JA signaling,by targeting specific JAZs.

关键词： PUB22 JAZ COI1 MYC2 JA signaling Solanum lycopersicum

Crack Initiation Mechanism of Z3CN20.09M Duplex Stainless Steel during Corrosion Fatigue in Water and Air at 290 °C

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Journal of Materials Science & Technology 2015年第11期31卷 1144-1150页

作者： H.C.Wu B.yang Y.Z.shi Q.Gao Y.Q.Wang State Key Laboratory for Advanced Metals and Materials University of Science and Technology Beijing Collaborative Innovation Center of Universal Iron & Steel Technology School of Materials Science and Engineering Anhui University of Technology

The crack initiation mechanism of a Z3CN20.09M duplex stainless steel （DSS） during corrosion fatigue （CF） in water and air at 290 ℃ was investigated by using a CF cracking machine and a scanning electron microscopy （SEM）. The cracks were initiated successively at the persistent stip bands （PSBs）, phase boundaries （PBs） and pitting corrosion points （PCPs） of the specimens when they were tested in water at 290 ℃, while in airat 290 ℃ the cracks were only initiated at the PSBs and PBs. And the cracks were found mainly to initiate at the PSBs and PBs when the specimens were tested in water and air at 290 ℃, respectively. The results also reveal that the cracks were likely to be initiated at the first 20% of fatigue life of the specimens tested in water at 290 ℃. However, the cracks were not found until 50% of fatigue life when tested in air at 290 ℃. Moreover, the crack numbers of the specimens tested in water at 290 ℃ were much more than those tested in air at 290 ℃.

关键词： Duplex stainless steel Corrosion fatigue Crack initiation High temperature water

Superinsulating BNNS/PVA Composite Aerogels with High Solar Reflectance for Energy-Efficient Buildings

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Nano-Micro Letters 2022年第3期14卷 292-307页

作者： jie yang Kit‑Ying Chan Harun Venkatesan Eunyoung Kim Miracle Hope Adegun Jeng‑Hun Lee Xi Shen Jang‐Kyo Kim Department of Mechanical and Aerospace Engineering The Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongPeople’s Republic of China Department of Aeronautical and Aviation Engineering The Hong Kong Polytechnic UniversityHung HomKowloonHong KongPeople’s Republic of China

With the mandate of worldwide carbon neutralization,pursuing comfortable living environment while consuming less energy is an enticing and unavoidable *** composite aerogels with super thermal insulation and high sunlight reflection are developed for energy-efficient buildings.A solvent-assisted freeze-casting strategy is used to produce boron nitride nanosheet/polyvinyl alcohol(BNNS/PVA)composite aerogels with a tailored alignment channel *** effects of acetone and BNNS fillers on microstructures and multifunctional properties of aerogels are *** acetone in the PVA suspension enlarges the cell walls to suppress the shrinkage,giving rise to a lower density and a higher porosity,accompanied with much diminished heat conduction throughout the whole *** addition of BNNS fillers creates whiskers in place of disconnected transverse ligaments between adjacent cell walls,further ameliorating the thermal insulation transverse to the cell wall *** resultant BNNS/PVA aerogel delivers an ultralow thermal conductivity of 23.5 mW m^(−1) K^(−1) in the transverse *** superinsulating aerogel presents both an infrared stealthy capability and a high solar reflectance of 93.8%over the whole sunlight wave-length,far outperforming commercial expanded polystyrene foams with reflective *** anisotropic BNNS/PVA composite aerogel presents great potential for application in energy-saving buildings.

关键词： Boron nitride nanosheets Solvent-assisted freeze-casting Thermally insulating aerogel Solar reflectance Energy-saving buildings