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Chinese Chemical Letters 2024年第6期35卷 239-243页

作者： Long li Kang Yang Chenpeng Xi mengchao li Borong li Gui Xu Yuanbin Xiao Xiancai Cui Zhiliang liu lingyun li Yan Yu Chengkai Yang Key Laboratory of Advanced Materials Technologies International(HongKong Macao and Taiwan)Joint Laboratory on Advanced Materials TechnologiesSchool of Materials Science and EngineeringFuzhou UniversityFuzhou 350108China College of Material Sciences and Chemical Engineering Harbin Engineering UniversityHarbin 150001China

Side reactions and dendrite growth triggered by the unstable interface and inhomogeneous deposition have become the biggest obstacle to the commercialization for lithium metal *** this study,a highly-chlorinated organic-inorganic hybrid interfacial protective layer is developed by rationally tuning the interfacial passivation and robustness to achieve the convenient and efficient li metal *** polyvinyl chloride(PVC)can effectively resist water and oxygen,which is confirmed by density functional *** organic-dominant solid electrolyte interphases(SEI)with lithium chloride are investigated by the X-ray photoelectron spectroscopy(XPS)with little mineralization of oxide,such as li_(2)O and li_(2)CO_(3).With such artificial SEI,a uniform and dense lithium deposition morphology are formed and an ultra-long stable cycle of over 500 h are achieved even at an ultra-high current density of 10 m A/cm^(2).Moreover,the simple and convenient protected anode also exhibits excellent battery stability when paired with the liNi_(0.8)Co_(0.1)Mn_(0.1)O_(2)(NCM811)and liFePO_(4)(LFP)cathode,showing great potential for the commercial application of lithium metal batteries.

关键词： Highly-chlorinated Water/oxygen resistance Stable interphase Dendrite-free lithium metal batteries High-rate

Optimization study of spherical tuyere based on BP neural network and new evaluation index

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Building Simulation 2024年第2期17卷 223-234页

作者： mengchao liu Ran Gao Yi Wang Angui li School of Building Services Science and Engineering Xi’an University of Architecture and TechnologyXi’an710055China

The energy consumption of heating,ventilation,and air conditioning(HVAC)systems holds a significant position in building energy usage,accounting for about 65%of the total energy ***,with the advancement of building automation,the energy consumption of ventilation systems continues to *** study focuses on improving the performance of spherical tuyeres in HVAC *** primarily utilizes neural networks and multi-island genetic algorithms(MIGA)for multi-parameter *** employing methods such as structural parameterization,accurate and fast computational fluid dynamics(CFD)simulations,a minimized sample space,and a rational optimization strategy,the time cycle of the optimization process is ***,a new comprehensive evaluation index is proposed in this research to describe the performance of spherical tuyeres,which can be used to more accurately assess spherical tuyeres with different *** results show that by establishing a neural network prediction model and combining it with the multi-island genetic algorithm,a novel spherical tuyere design was successfully *** optimized novel spherical tuyeres achieved a 27.05%reduction in the spherical tuyeres effective index(STEI)compared to the traditional spherical ***,the resistance decreased by 15.68%,and the jet length increased by 7.57%.The experimental results demonstrate that our proposed optimization method exhibits high accuracy,good generalization capability,and excellent agreement at different Reynolds numbers.

关键词： spherical tuyeres STEI CFD ventilation

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基于LVQ神经网络的水果图像分割研究

井冈山大学学报（自然科学版） 2024年第4期45卷 76-83页

作者：郭勇黄骏陈维高华杰李梦超赣南师范大学物理与电子信息学院江西赣州341000

由于传统边沿检测算子在水果颜色多样、亮度不均匀时,难以分割得到完整、无噪声的二值图像且依赖优化的阈值,本研究提出了一种基于LVQ神经网络的水果图像分割方案。首先将彩色图像转变为灰度图像;然后对Canny算子获得的边沿图像随机选... 详细信息

由于传统边沿检测算子在水果颜色多样、亮度不均匀时,难以分割得到完整、无噪声的二值图像且依赖优化的阈值,本研究提出了一种基于LVQ神经网络的水果图像分割方案。首先将彩色图像转变为灰度图像;然后对Canny算子获得的边沿图像随机选取一些像素作为网络的学习监督信号,仅以灰度图像中相同位置像素3×3邻域的Kirsch算子梯度值作为输入,训练权值;最后重新将原灰度图像的Kirsch算子梯度值输入到训练好的网络中,获得封闭的边沿并填充得到二值图像。考察了14幅像素为640×480的水果图像,结果表明:网络在很宽广的阈值范围内(0.001~0.99)分割得到完整、一致的二值图像;面积误差最小为0.9%,最大为8.83%,不依赖于优化的阈值,不需要对原始图像滤波预处理。与没有阈值及滤波的算法相比,本方案的误差和时间复杂度均更低;与设置了阈值和/或滤波的算法相比,本方案与之相当,甚至效果更优。

关键词：水果图像分割 LVQ神经网络 Kirsch算子 Canny算子面积误差时间复杂度阈值

A Review of Solid Electrolyte Interphase(SEI)and Dendrite Formation in lithium Batteries

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Electrochemical Energy Reviews 2023年第1期6卷 680-725页

作者： Borong li Yu Chao mengchao li Yuanbin Xiao Rui li Kang Yang Xiancai Cui Gui Xu lingyun li Chengkai Yang Yan Yu David P.Wilkinson Jiujun Zhang College of Materials Science and Engineering Fuzhou UniversityFuzhou 350108FujianChina Key Laboratory of Eco-Materials Advanced Technology(Fuzhou University) Fuzhou UniversityFuzhou 350108FujianChina Department of Chemical and Biochemical Engineering University of British ColumbiaVancouverBC V6T1W5Canada Institute for Sustainable Energy/College of Sciences Shanghai UniversityShanghai 200444China

lithium-metal batteries with high energy/power densities have significant applications in electronics,electric vehicles,and stationary power ***,the unstable lithium-metal-anode/electrolyte interface has induced insufficient cycle life and safety *** improve the cycle life and safety,understanding the formation of the solid electrolyte interphase(SEI)and growth of lithium dendrites near the anode/electrolyte interface,regulating the electrodeposition/electrostripping processes of li^(+),and developing multiple approaches for protecting the lithium-metal surface and SEI layer are crucial and *** paper comprehensively reviews the research progress in SEI and lithium dendrite growth in terms of their classical electrochemical lithium plating/stripping processes,interface interaction/nucleation processes,anode geometric evolution,fundamental electrolyte reduction mechanisms,and effects on battery *** important aspects,such as charge transfer,the local current distribution,solvation,desolvation,ion diffusion through the interface,inhibition of dendrites by the SEI,additives,models for dendrite formation,heterogeneous nucleation,asymmetric processes during stripping/plating,the host matrix,and in situ nucleation characterization,are also analyzed based on experimental observations and theoretical *** technical challenges in improving SEI properties and reducing lithium dendrite growth are ***,possible future research directions for overcoming the challenges are also proposed to facilitate further research and development toward practical applications.

关键词： lithium-metal anode Solid electrolyte interphase(SEI) Dendrite formation lithium batteries Classical electrochemical processes Additives Heterogeneous nucleation Asymmetric processes Solvation structure Desolvation In situ characterization of nucleation

Performance enhancement of solution-processed InZnO thin-film transistors by Al doping and surface passivation

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Journal of Semiconductors 2022年第3期43卷 94-103页

作者： Wensi Cai Haiyun li mengchao li Zhigang Zang Key Laboratory of Optoelectronic Technology&System(Ministry of Education) Chongqing UniversityChongqing 400044China

Solution-processed oxide semiconductors have been considered as a potential alternative to vacuum-based ones in printable ***,despite spincoated InZnO(IZO)thin-film transistors(TFTs)have shown a relatively high mobil-ity,the lack of carrier suppressor and the high sensitivity to oxygen and water molecules in ambient air make them potentially suffer issues of poor *** this work,Al is used as the third cation doping element to study the effects on the electrical,optoelectronic,and physical properties of IZO TFTs.A hydrophobic self-assembled monolayer called octadecyltrimethoxysilane is introduced as the surface passivation layer,aiming to reduce the effects from air and understand the importance of top surface conditions in solution-processed,ultra-thin oxide *** to the reduced trap states within the film and at the top surface enabled by the doping and passivation,the optimized TFTs show an increased current on/off ratio,a reduced drain current hysteresis,and a significantly enhanced bias stress stability,compared with the untreated *** combining with high-capacitance AlO_(x),TFTs with a low operating voltage of 1.5 V,a current on/off ratio of>10^(4) and a mobility of 4.6 cm^(2)/(V·s)are demonstrated,suggesting the promising features for future low-cost,low-power electronics.

关键词： thin-film transistors oxide semiconductors Al doping surface passivation

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深水海上风电三筒导管架基础受力及浮运分析

太阳能学报 2022年第11期43卷 269-276页

作者：朱航李孟超郭耀华杨旭王海军练继建天津大学水利工程仿真与安全国家重点实验室天津300350 天津大学建筑工程学院天津300350 长江三峡集团福建能源投资有限公司福州350003

以中国福建某较深海域风电场为背景,提出一种海上风电宽浅型三筒导管架基础结构,继而通过建立考虑分层土体的基础整体有限元模型,对分层土中宽浅型三筒导管架基础静动力特性及浮运稳性展开研究。研究结果表明,正常荷载作用下此基础结构... 详细信息

以中国福建某较深海域风电场为背景,提出一种海上风电宽浅型三筒导管架基础结构,继而通过建立考虑分层土体的基础整体有限元模型,对分层土中宽浅型三筒导管架基础静动力特性及浮运稳性展开研究。研究结果表明,正常荷载作用下此基础结构法兰倾斜率为3.98‰,满足规范要求:极限荷载作用下,基础结构各部位应力满足要求;基础-塔筒-机组整体共振校核满足要求:基础可在4级风浪以内的海况下进行自浮远距离拖航浮运;等效疲劳荷载作用下,基础结构疲劳损伤满足要求。

关键词：海洋技术海上风电基础多筒基础导管架自浮运输

Proton radiography of magnetic fields generated with an open-ended coil driven by high power laser pulses

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Matter and Radiation at Extremes 2016年第4期1卷 187-191页

作者： Guoqian liao Yutong li Baojun Zhu Yanfei li Fang li mengchao li Xuan Wang Zhe Zhang Shukai He Weiwu Wang Feng Lu Faqiang Zhang Lei Yang Kainan Zhou Na Xie Wei Hong Yuqiu Gu Zongqing Zhao Baohan Zhang Jie Zhang National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100190China Science and Technology on Plasma Physics Laboratory Laser Fusion Research CenterChina Academy of Engineering Physics(CAEP)Mianyang 621900China Key Laboratory for Laser Plasmas(MoE)and Department of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Collaborative Innovation Center of IFSA(CICIFSA) Shanghai Jiao Tong UniversityShanghai 200240China

Recently generation of strong magnetic(B)fields has been demonstrated in capacitor coils heated by high power laser pulses[*** et al.,***.3,1170(2013)].This paper will present a direct measurement of B field generated with an open-ended coil target driven by a nanosecond laser pulse using ultrafast proton *** radiographs are analyzed with particle-tracing *** B field at the coil center is inferred to be ~50 T at an irradiance of ~5×10^(14) W·cm^(-2).The B field generation is attributed to the background cold electron flow pointing to the laser focal spot,where a target potential is induced due to the escape of energetic electrons.

关键词： Strong magnetic field Laser-driven coil targets Proton radiography

一种基于FCME的跳频通信干扰检测门限设计方法

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河北工业科技 2022年第2期39卷 94-100页

作者：李孟超潘申富中国电子科技集团公司第五十四研究所河北石家庄050081

针对跳频卫星通信在应用中面临恶意干扰威胁的问题,需要对接收信号进行干扰检测。首先使用宽带能量检测模型对接收信号进行建模,分析了检测统计量的概率分布形式,其次在FCME算法以及恒虚警门限设置方法的基础上,利用概率统计知识分析高... 详细信息

针对跳频卫星通信在应用中面临恶意干扰威胁的问题,需要对接收信号进行干扰检测。首先使用宽带能量检测模型对接收信号进行建模,分析了检测统计量的概率分布形式,其次在FCME算法以及恒虚警门限设置方法的基础上,利用概率统计知识分析高斯分布下部分样本与总体的关系,加入迭代修正过程对噪底进行估计以设置满足恒虚警概率要求的门限,最后利用Matlab搭建仿真平台进行仿真分析。理论和仿真分析表明,基于FCME的迭代修正门限设计方法相比于已有方法在SNR为0 dB、无干扰条件下能获得满足虚警概率要求的门限,当存在部分频带干扰时算法性能下降,但所获得的门限仍能满足虚警概率要求。设计方法在干扰较弱或不存在时能满足虚警概率要求,改善了FCME算法虚警概率偏高的情况,应用于跳频通信系统干扰检测的门限设计是可行的,在工程实际应用中有一定的参考价值。

关键词：无线通信技术跳频通信干扰检测能量检测门限设计

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光-储一体电动汽车充电站储能规划

电力系统及其自动化学报 2023年第8期35卷 82-93页

作者：李科皇甫霄文李梦超于昊正徐弢罗潘国网河南省电力公司经济技术研究院郑州450052 教育部智能电网重点实验室(天津大学) 天津300072

为合理规划电动汽车充电站资源,提出计及多种客观因素的光-储一体电动汽车充电站储能优化配置方法。首先,对电动汽车充电站进行建模;然后,建立计及用户出行特性、季节与排队因素影响的电动汽车充电负荷预测模型,并提出计及环境温度影响... 详细信息

为合理规划电动汽车充电站资源,提出计及多种客观因素的光-储一体电动汽车充电站储能优化配置方法。首先,对电动汽车充电站进行建模;然后,建立计及用户出行特性、季节与排队因素影响的电动汽车充电负荷预测模型,并提出计及环境温度影响的储能系统寿命衰减模型;最后,以充电站成本-收益最优为目标建立储能双层优化配置模型,在内层优化中考虑其边际寿命损耗成本。算例结果表明,所提储能规划方法在满足电动汽车充电需求的同时,可实现充电站运营效益提升。

关键词：储能系统电动汽车充电负荷预测电池寿命衰减

战略供应商管理对供应商网络整合的影响机理研究

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南开管理评论 2016年第6期19卷 58-69页

作者：李随成武梦超李娜王玮西安理工大学经济与管理学院西安财经学院管理学院

供应商网络整合是供应商整合相关研究的最新拓展。本研究尝试从集体意识视角,探明中国文化背景下战略供应商管理如何影响供应商网络整合。研究结果表明:(1)供应商选择、供应基合理化、战略伙伴关系建立、供应商参与新产品开发和持续供... 详细信息

供应商网络整合是供应商整合相关研究的最新拓展。本研究尝试从集体意识视角,探明中国文化背景下战略供应商管理如何影响供应商网络整合。研究结果表明:(1)供应商选择、供应基合理化、战略伙伴关系建立、供应商参与新产品开发和持续供应商开发会促进供应商网络整合的形成,而供应商参与制造过程则不会;(2)集体意识的三个维度(归属感知、互惠影响、参与热情)均会正向影响供应商网络整合的形成;(3)归属感知、互惠影响和参与热情在战略供应商管理和供应商网络整合的关系中起到不同程度的"桥梁"作用。

关键词：供应商网络整合供应商整合战略供应商管理集体意识