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Thioacetamide Additive Homogenizing Zn Deposition Revealed by In Situ Digital Holography for Advanced Zn Ion Batteries

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Nano-Micro Letters 2024年第6期16卷 261-275页

作者： kaixin ren Min Li Qinghong Wang Baohua Liu Chuang Sun Boyu Yuan Chao Lai Lifang Jiao Chao Wang School of Chemistry and Materials Science Jiangsu Normal UniversityXuzhou 221116JiangsuPeople’s Republic of China Jiangsu Key Laboratory of Advanced Laser Materials and Devices School ofPhysics and Electronic EngineeringJiangsu Normal UniversityXuzhou 221116JiangsuPeople’s Republic of China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Nankai University300071 TianjinPeople’s Republic of China

Zinc ion batteries are considered as potential energy storage devices due to their advantages of low-cost,high-safety,and high theoretical ***,dendrite growth and chemical corrosion occurring on Zn anode limit their *** problems can be tackled through the optimization of the ***,the screening of electrolyte additives using normal electrochemical methods is time-consuming and ***,a fast and simple method based on the digital holography is *** can realize the in situ monitoring of electrode/electrolyte interface and provide direct information concerning ion concentration evolution of the diffusion *** is effective and time-saving in estimating the homogeneity of the deposition layer and predicting the tendency of dendrite growth,thus able to value the applicability of electrolyte *** feasibility of this method is further validated by the forecast and evaluation of thioacetamide *** on systematic characterization,it is proved that the introduction of thioacetamide can not only regulate the interficial ion flux to induce dendrite-free Zn deposition,but also construct adsorption molecule layers to inhibit side reactions of Zn *** easy to operate,capable of in situ observation,and able to endure harsh conditions,digital holography method will be a promising approach for the interfacial investigation of other battery systems.

关键词： Digital holographic microscopy In situ observation Electrode/electrolyte interface Zn dendrites Screening electrolyte additives

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In situ construction of zinc-rich polymeric solid–electrolyte interface for high-performance zinc anode

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eScience 2023年第4期3卷 118-126页

作者： Kaixuan Xie kaixin ren Qinghong Wang Yuxiao Lin Fengcan Ma Chuang Sun Yinwei Li Xinsheng Zhao Chao Lai School of Chemistry and Materials Science Jiangsu Normal UniversityXuzhouJiangsu 221116PR China Jiangsu Key Laboratory of Advanced Laser Materials and Devices School of Physics and Electronic EngineeringJiangsu Normal UniversityXuzhouJiangsu 221116PR China

With their excellent reliability and environmental friendliness,zinc-ion batteries(ZIBs)are regarded as potential energy storage ***,their poor cycling durability and low Coulombic effectiveness(CE),driven by dendritic growth and surface passivation on the Zn anode,severely restrict their ***,we describe the in situ construction of a Zn-rich polymeric solid–electrolyte interface(SEI)using poly-acrylic acid(PAA)as an electrolyte *** the one hand,the PAA SEI layer offers evenly distributed nucleation sites and promotes ion transport,hence suppressing dendrite *** the other hand,the SEI layer prevents direct contact between the Zn foil and the electrolyte,thus inhibiting side ***,the robust coordination of PAA with Zn^(2+)and the SEI layer's good adherence to the Zn foil provide long-term pro-tection to the Zn *** a result,symmetric cells and Zn/V_(2)O_(5)cells all deliver prolonged cycle life and superior electrochemical efficiency.

关键词： Zn-rich polymeric SEI Electrolyte additive Dendrite growth Chemical corrosion Zinc-ion batteries

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Apically guiding electron/mass transfer reaction induced by Ag/FeN_(x)Mott-Schottky effect within a hollow star reactor toward high performance zinc-air batteries

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Journal of Energy Chemistry 2024年第8期95卷 106-116,I0004页

作者： Kaixiang Shi kaixin Wang Tong Li Junhao Li Jie ren Xu Li Yonggang Min Zhouguang Lu Wei Tan Quanbing Liu Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center(Rongjiang Laboratory) Guangdong University of TechnologyJieyang 515200GuangdongChina Guangzhou Key Laboratory of Clean Transportation Energy Chemistry Guangdong Provincial Key Laboratory of Plant Resources BiorefinerySchool of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhou 510006GuangdongChina Key Laboratory of Electrochemical Energy Storage and Energy Conversion of Hainan Province School of Chemistry and Chemical EngineeringHainan Normal UniversityHaikou 571158HainanChina School of Materials and Energy Guangdong University of TechnologyGuangzhou 510006GuangdongChina Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen 518055GuangdongChina

The disparity in the transfer of carriers(electrons/mass)during the reaction in zinc-air batteries(ZABs)results in sluggish kinetics of the oxygen reduction reaction(ORR)and oxygen evolution reaction(OER),along with elevated overpotentials,thereby imposing additional constraints on its ***,the pre-design and target-development of inexpensive,high-performance,and long-term stable bifunctional catalysts are urgently *** this work,an apically guiding dual-functional electrocatalyst(Ag-FeN_(x)-N-C)was prepared,in which a hierarchical porous nitrogen-doped carbon with three-dimensional(3D)hollow star-shaped structure is used as a substrate and high-conductivity Ag nanoparticles are coupled with iron nitride(FeN_(x))*** calculations indicate that the Mott-Schottky heterojunction as an inherent electric field comes from the two-phase bound of Ag and FeN_(x),of which electron accumulation in the FeN_(x)phase region and electron depletion in the Ag phase region promote orientated-guiding charge *** effective modulation of local electronic structures felicitously reforms the d-band electron-group distribution,and intellectually tunes the masstransfer reaction energy barriers for both ORR/***,the hollow star-s haped hierarchical porous structure provides an apical region for fast mass *** results show that the halfwave potential for ORR is 0.914 V,and the overpotential for OER is only 327 mV at 10 mA cm^(-2).A rechargeable ZAB with Ag-FeN_(x)-N-C as the air cathode demonstrates long-term cycling performance exceeding 1500 cycles(500 h),with a power density of 180 mW cm^(-2).Moreover,when employing AgFeN_(x)-N-C as the air cathode,flexible ZABs demonstrate a notable open-circuit voltage of 1.42 V and achieve a maximum power density of 65.6 mW cm^(-2).Ag-FeN_(x)-N-C shows guiding electron/mass transfer route and apical reaction microenvironment for the electrocatalyst architecture in the explo

关键词： Hollow star structure Mott-Schottky effect Apically guiding effect Bifunctional catalysis Zinc-air batteries

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A Multilayered Magnetoelectric Transmitter with Suppressed Nonlinearity for Portable VLF Communication

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Research 2024年第2期2023卷 553-563页

作者： Zhaoqiang Chu Zhineng Mao kaixin Song Shizhan Jiang Shugang Min Wei Dan Chenyuan Yu Meiyu Wu Yinghui ren Zhichao Lu Jie Jiao Tianxiang Nan Shuxiang Dong Qingdao Innovation and Development Base Harbin Engineering UniversityQingdao 266071China College of Underwater Acoustics Engineering Harbin Engineering UniversityHarbin 150001China Songshan Lake Materials Laboratory DongguanGuangdong 523808 China Shanghai Institute of Ceramics Chinese Academy of SciencesShanghai 201800China School of Integrated Circuits and Beijing National Research Center for Information Science and Technology(BNRist) Tsinghua UniversityBeijing 100084China College of Engineering Peking UniversityBeijing 100871China

Acoustically actuated magnetoelectric(ME)antenna based on the efficient oscillation of magnetic dipoles has recently been considered as a promising solution for portable very-low-frequency ***,the severe nonlinear dynamic behavior in the case of strong-field excitation results in insufficient radiation capability and poor communication performance for a conventional ME *** this work,we propose to suppress the nonlinearity of an ME antenna by neutralizing the spring-hardening effect in amorphous Metglas and the spring-softening effect in piezoelectric ceramics through an ME multilayered transmitter(ME-MLTx)*** a driving voltage of 50 V_(pp)at the resonance frequency of 21.2 kHz,a magnetic flux density as high as 108 fT at a distance of 100 m is produced from a single *** addition,ME-MLTx performs a decreased mechanical quality factor(Q_(m))less than 40.65,and,thus,a broadened bandwidth of 500 Hz is ***,a communication link transmitting binary American Standard Code for Information Interchange-coded message is built,which allows for an error-free communication with a distance of 18 m and a data rate of 300 bit/s in the presence of heavy environment *** communication distance can be further estimated over 100 m when using a femtotesla-class-inductive magnetic field *** obtained results are believed to bring ME antennas one step closer to being applicable in very-low-frequency communications.

关键词： closer nonlinearity inductive

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基于前缀的片上网络容错源路由算法

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计算机应用与软件 2013年第2期30卷 18-21,25页

作者：许耿纯任开新顾乃杰中国科学技术大学计算机科学与技术学院安徽合肥230027 安徽省计算与通讯软件重点实验室安徽合肥230027 中国科学技术大学中科院沈阳计算所网络与通信联合实验室安徽合肥230027

为克服片上网络链路永久性错误带来的路由问题,提出一种基于前缀的片上网络容错源路由算法PFTSR。该算法适用于二维mesh片上网络,采用预测路径并根据反馈信息调整路径的方法进行路由探测。在仿真平台NIRGAM上进行仿真,实验结果表明,与... 详细信息

为克服片上网络链路永久性错误带来的路由问题,提出一种基于前缀的片上网络容错源路由算法PFTSR。该算法适用于二维mesh片上网络,采用预测路径并根据反馈信息调整路径的方法进行路由探测。在仿真平台NIRGAM上进行仿真,实验结果表明,与传统片上网络容错源路由算法SRN相比,PFTSR极大降低了片上系统的功耗,并且在大多数情况下能减少探测到第一条路径的时间。

关键词：片上网络路由算法容错源路由

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GFRP补片内SMA铺设构型对修理层合板热振动特性的影响

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复合材料学报 2024年第5期41卷 2487-2502页

作者：崔开心谢昊航任鹏卢翔中国民航大学航空工程学院天津300300 中国民航大学交通科学与工程学院天津300300

在复合材料中加入形状记忆合金(SMA)制成的纤维增强材料具有高强度、高阻尼与良好的自修复性等优点,可明显提高修理结构刚度及抗剥离性。为了探究热环境下玻璃纤维补片内嵌不同铺设数量与方式的SMA修理板的振动特性,基于Liang-Rogers的... 详细信息

在复合材料中加入形状记忆合金(SMA)制成的纤维增强材料具有高强度、高阻尼与良好的自修复性等优点,可明显提高修理结构刚度及抗剥离性。为了探究热环境下玻璃纤维补片内嵌不同铺设数量与方式的SMA修理板的振动特性,基于Liang-Rogers的SMA本构模型编制用户自定义材料子程序(UMAT),实现有限元精确求解。对比传统修理板与本文制备的SMA修理板的振型、固有频率及阻尼比变化情况,探究不同温度下SMA铺设构型对双面贴补修理玻璃纤维层合板振动特性的影响。实验与仿真结果表明:相较于单线型(D)与垂直交叉型(C),斜铺交叉型(X)SMA修理板前三阶振型更接近传统修理板(Q_(0)),且振型与嵌入的SMA数量无关。SMA相变时,内嵌SMA使修理板前二阶固有频率上升且上升率与SMA数量呈正相关,与SMA铺设方式关系如下:C型>D型>X型。内嵌SMA使修理板耗能能力及阻尼性优于Q_(0)板,与SMA数量呈正相关,与SMA铺设方式关系如下:X型>C型>D型。本文研究的铺设构型中,X_(24)型修理效果最优,其一、二阶固有频率最高可恢复至Q_(0)板的108.47%与112.26%,阻尼比相较于Q_(0)板增大了5.19倍。该工作可以为现有传统复合材料修理向智能复合材料修理技术转变提供参考。

关键词： SMA 编织玻璃纤维复合材料振动特性双面贴补修理智能材料

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Redis集群可靠性的研究与优化

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计算机工程 2018年第5期44卷 40-46页

作者：李燚顾乃杰黄增士任开新中国科学技术大学计算机科学与技术学院合肥230027 安徽省计算与通信软件重点实验室合肥230027 中国科学技术大学先进技术研究院合肥230027

当Redis集群发生单点故障时,恢复过程不稳定且耗时较长。为此,在不增加网络传输代价的前提下,使用通信负载均衡的方法,对Redis集群容错机制的通信过程进行优化,从而达到提升集群可靠性的目的。实验结果表明,优化后的Redis集群的宕机恢... 详细信息

当Redis集群发生单点故障时,恢复过程不稳定且耗时较长。为此,在不增加网络传输代价的前提下,使用通信负载均衡的方法,对Redis集群容错机制的通信过程进行优化,从而达到提升集群可靠性的目的。实验结果表明,优化后的Redis集群的宕机恢复效率明显提升,在保证吞吐率和不提高传输代价的情况下,可提升集群处理故障状态的可靠性。

关键词： Redis集群单点故障容错机制可靠性通信负载均衡

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Hepatic TRPC3 loss contributes to chronic alcohol consumption-induced hepatic steatosis and liver injury in mice

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Life Metabolism 2024年第1期3卷 51-66页

作者： Qinchao Ding Rui Guo Liuyi Hao Qing Song Ai Fu Shanglei Lai Tiantian Xu Hui Zhuge kaixin Chang Yanli Chen Haibin Wei Daxi ren Zhaoli Sun Zhenyuan Song Xiaobing Dou Songtao Li School of Public Health Zhejiang Chinese Medical UniversityHangzhouZhejiang 310053China College of Animal Science Zhejiang UniversityHangzhouZhejiang 310058China Department of Kinesiology and Nutrition University of Illinois at ChicagoChicagoIL 60612United States School of Life Science Zhejiang Chinese Medical UniversityHangzhouZhejiang 310053China Department of Surgery Johns Hopkins University School of MedicineBaltimoreMD 21205United States

Emerging evidence discloses the involvement of calcium channel protein in the pathological process of liver *** receptor potential cation channel subfamily C member 3(TRPC3),a ubiquitously expressed non-selective cation channel protein,controls proliferation,inflammation,and immune response via operating calcium influx in various ***,our understanding on the biofunction of hepatic TRPC3 is still *** present study aims to clarify the role and potential mechanism(s)of TRPC3 in alcohol-associated liver disease(ALD).We recently found that TRPC3 expression plays an important role in the disease process of *** exposure led to a significant reduction of hepatic TRPC3 in patients with alcohol-related hepatitis(AH)and ALD ***(N-acetylcysteine and mitoquinone)intervention improved alcohol-induced suppression of TRPC3 via a miR-339-5p-involved ***3 loss robustly aggravated the alcohol-induced hepatic steatosis and liver injury in mouse liver;this was associated with the suppression of Ca^(2+)/calmodulin-dependent protein kinase kinase 2(CAMKK2)/AMP-activated protein kinase(AMPK)and dysregulation of genes related to lipid ***3 loss also enhanced hepatic inflammation and early fibrosis-like change in *** hepatic TRPC3 effectively reversed chronic alcohol-induced detrimental alterations in ALD ***,chronic alcohol exposure-induced TRPC3 reduction contributes to the pathological development of ALD via suppression of the CAMKK2/AMPK *** stress-stimulated miR-339-5p upregulation contributes to alcohol-reduced ***3 is the requisite and a potential target to defend alcohol consumption-caused ALD.

关键词： TRPC3 alcohol-associated liver disease miR-339-5p hepatic steatosis liver injury CAMKK2/AMPK

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一种面向多核系统的Linux任务调度算法

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计算机工程 2015年第2期41卷 36-40,46页

作者：曹越顾乃杰任开新张旭吴志强中国科学技术大学计算机科学与技术学院合肥230027 中国科学技术大学安徽省计算与通信软件重点实验室合肥230027 中国科学技术大学先进技术研究院合肥230027

针对Linux任务调度算法在多核系统中交互性能差的问题,提出一种分组任务调度算法GFS。根据多核系统硬件特性,自动配置物理距离近的一组CPU共享一个任务运行队列,通过平衡组内CPU对任务运行队列的访问竞争与任务迁移的代价,实现组间任务... 详细信息

针对Linux任务调度算法在多核系统中交互性能差的问题,提出一种分组任务调度算法GFS。根据多核系统硬件特性,自动配置物理距离近的一组CPU共享一个任务运行队列,通过平衡组内CPU对任务运行队列的访问竞争与任务迁移的代价,实现组间任务运行队列的负载均衡,减少调度延迟。通过优先调度唤醒任务,加快多核系统中交互任务的响应速度。测试结果表明,在不同任务负载下,GFS能够明显降低交互任务的平均响应时间,从而有效提高多核系统交互应用的调度性能。

关键词：多核系统调度算法交互性能自动配置唤醒任务负载均衡

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Internet自治系统级拓扑发现系统的研究与实现

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计算机工程 2007年第14期33卷 107-109页

作者：袁之昊顾乃杰任开新刘小虎毕坤中国科学技术大学计算机科学与技术系

Internet由多个自治系统相互连接而成,AS间的互联结构体现了Internet的宏观结构。研究AS间的连接关系可以辅助分析网络特性。该文研究了Internet AS级拓扑发现,实现了一个Internet AS级拓扑发现系统。该系统分析BGP路由表得到Internet A... 详细信息

Internet由多个自治系统相互连接而成,AS间的互联结构体现了Internet的宏观结构。研究AS间的连接关系可以辅助分析网络特性。该文研究了Internet AS级拓扑发现,实现了一个Internet AS级拓扑发现系统。该系统分析BGP路由表得到Internet AS级拓扑并直观显示出来。分析了AS级拓扑的度分布属性,分析结果显示生成的拓扑具有幂律分布特性。

关键词：自治系统拓扑发现 BGP表拓扑显示幂律分布

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