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A Novel Poly(3-hexylthiophene) Engineered Interface for Electrochemical Monitoring of Ascorbic Acid During the Occurrence of Glutamate-Induced Brain Cytotoxic Edemas

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Research 2024年第1期2023卷 301-313页

作者： Zexuan Meng yuchan zhang Lu Yang Shuang Zhao Qiang Zhou Jiajia Chen Jiuxi Sui Jian Wang Lizhong Guo Luyue Chang Jialing He Guixue Wang Guangchao Zang Institute of Life Science and Laboratory of Tissue and Cell BiologyLab Teaching and Management CenterChongqing Medical UniversityChongqing 400016China Key Laboratory for Biorheological Science and Technology of Ministry of Education State and Local Joint Engineering Laboratory for Vascular ImplantsBioengineering College of Chongqing UniversityChongqing 400030China Jinfeng Laboratory Chongqing 401329China Department of Pathophysiology Chongqing Medical UniversityChongqingChina

Although neuroelectrochemical sensing technology offers unique benefits for neuroscience research,its application is limited by substantial interference in complex brain environments while ensuring biosafety *** this study,we introduced poly(3-hexylthiophene)(P3HT)and nitrogen-doped multiwalled carbon nanotubes(N-MWCNTs)to construct a composite membrane-modified carbon fiber microelectrode(CFME/P3HT-N-MWCNTs)for ascorbic acid(AA)*** microelectrode presented good linearity,selectivity,stability,antifouling,and biocompatibility and exhibited great performance for application in neuroelectrochemical ***,we applied CFME/P3HT-N-MWCNTs to monitor AA release from in vitro nerve cells,ex vivo brain slices,and in vivo living rat brains and determined that glutamate can induce cell edema and AA *** also found that glutamate activated the N-methyl-d-aspartic acid receptor,which enhanced Na^(+) and Cl^(−) inflow to induce osmotic stress,resulting in cytotoxic edema and ultimately AA *** study is the first to observe the process of glutamate-induced brain cytotoxic edema with AA release and to reveal the *** work can benefit the application of P3HT in in vivo implant microelectrode construction to monitor neurochemicals,understand the molecular basis of nervous system diseases,and discover certain biomarkers of brain diseases.

关键词： release microelectrode Engine

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Ultrafast dynamics of femtosecond laser-induced high spatial frequency periodic structures on silicon surfaces

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Opto-Electronic Science 2024年第3期3卷 33-46页

作者： Ruozhong Han yuchan zhang Qilin Jiang Long Chen Kaiqiang Cao Shian zhang Donghai Feng Zhenrong Sun Tianqing Jia State Key Laboratory of Precision Spectroscopy School of Physics and Electronic ScienceEast China Normal UniversityShanghai 200241China Institute of Laser Manufacturing Henan Academy of SciencesZhengzhou 450046China Institute of Physics Chinese Acadamy of SciencesBeijing 100190China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006China

Femtosecond laser-induced periodic surface structures(LIPSS)have been extensively studied over the past few *** particular,the period and groove width of high-spatial-frequency LIPSS(HSFL)is much smaller than the diffraction limit,making it a useful method for efficient ***,compared with the low-spatial-frequency LIPSS(LSFL),the structure size of the HSFL is smaller,and it is more easily ***,the formation mechanism of HSFL is complex and has always been a research hotspot in this *** this study,regular LSFL with a period of 760 nm was fabricated in advance on a silicon surface with two-beam interference using an 800 nm,50 fs femtosecond *** ultrafast dynamics of HSFL formation on the silicon surface of prefabricated LSFL under single femtosecond laser pulse irradiation were observed and analyzed for the first time using collinear pump-probe imaging *** general,the evolution of the surface structure undergoes five sequential stages:the LSFL begins to split,becomes uniform HSFL,degenerates into an irregular LSFL,undergoes secondary splitting into a weakly uniform HSFL,and evolves into an irregular LSFL or is *** results indicate that the local enhancement of the submerged nanocavity,or the nanoplasma,in the prefabricated LSFL ridge led to the splitting of the LSFL,and the thermodynamic effect drove the homogenization of the splitting LSFL,which evolved into HSFL.

关键词： laser-induced periodic surface structures(LIPSS) local field enhancement collinear pump-probe imaging silicon high spatial frequency periodic structures

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基于脑电信号空域特征的紧急制动行为识别

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电子科技大学学报 2024年第1期53卷 84-91页

作者：袁月婷闫光辉常文文张玉婵兰州交通大学电子与信息工程学院兰州730070 甘肃日报报业集团甘肃省媒体融合技术与传播重点实验室兰州730030

基于脑电信号对紧急制动行为的分类识别和预测,是开发以人为中心的智能辅助驾驶系统的关键问题。为实现对驾驶过程中紧急制动和正常驾驶行为的分类识别,提出了基于PLV的特征表示方法来构建功能性脑网络,结合对网络特征参数的统计分析,... 详细信息

基于脑电信号对紧急制动行为的分类识别和预测,是开发以人为中心的智能辅助驾驶系统的关键问题。为实现对驾驶过程中紧急制动和正常驾驶行为的分类识别,提出了基于PLV的特征表示方法来构建功能性脑网络,结合对网络特征参数的统计分析,确定显著性差异的特征参数,以及通过对数欧式距离提取脑电信号空域特征,并结合机器学习算法完成对紧急制动和正常驾驶行为的分类识别。实验结果表明,针对17名被试的紧急制动和正常驾驶的分类准确率均高于84%,最高准确率达到95.7%;对功能性脑网络的分析结果表明,在两种驾驶行为过程中,脑区间的交互都涉及全脑区,且在紧急制动过程中,脑区间的交互主要出现在额-中央-颞叶区,这与紧急制动下大脑更专注于判断决策相符。研究结果对理解驾驶过程中,尤其是紧急制动过程中驾驶员对应脑区间的依赖关系,以及开发智能辅助驾驶系统在驾驶过程中提前识别紧急制动意图具有一定的参考价值。

关键词：驾驶行为紧急制动脑电信号脑功能网络对数欧式距离

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基于Informer神经网络的锂离子电池容量退化轨迹预测

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储能科学与技术 2024年第5期13卷 1658-1666页

作者：唐梓巍师玉璞张雨禅周奕博杜慧玲西安科技大学材料科学与工程学院陕西西安710054

通过对锂离子电池容量退化轨迹的精确预测可以大幅提升电池材料的研究效率。针对Transformer网络在锂电池容量退化轨迹预测这种长时间序列预测任务中存在的问题,本工作采用滑动窗口策略,构建了一种基于Informer网络的锂离子电池容量退... 详细信息

通过对锂离子电池容量退化轨迹的精确预测可以大幅提升电池材料的研究效率。针对Transformer网络在锂电池容量退化轨迹预测这种长时间序列预测任务中存在的问题,本工作采用滑动窗口策略,构建了一种基于Informer网络的锂离子电池容量退化轨迹预测方法。首先,利用滑动窗口对数据集进行划分和再拼接,便于神经网络挖掘数据序列内部的相关性;然后,根据Informer网络的周期性时间特征捕捉能力设计适用于锂电池数据的全局时间戳;最后,使用前10%容量数据通过多步滚动预测方法实现模型输出,缓解预测中的误差累积问题,进而得到完整的预测轨迹。通过选取不同的误差评价指标和训练过程中的时间开销,在美国马里兰大学提供的锂电池数据集上验证了所建立模型的准确性和训练效率,并在美国航空航天局提供的电池数据集上验证了模型的泛用性。本工作模型的预测结果与多层感知机神经网络、循环神经网络及Transformer网络模型对比,退化轨迹与真实轨迹最为拟合,且训练时间开销小,预测结果的平均绝对误差和均方根误差控制在2.57%和3.5%,验证了所提预测方法的有效性。

关键词：锂离子电池容量退化轨迹长时间序列预测滑动窗口策略 Informer网络

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Protein ubiquitination in plant peroxisomes

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Journal of Integrative Plant Biology 2023年第2期65卷 371-380页

作者： Delara Akhter yuchan zhang Jianping Hu Ronghui Pan State Key Laboratory of Rice Biology Zhejiang Provincial Key Laboratory of Crop Genetic ResourcesCollege of Agriculture and Biotechnology&ZJU-Hangzhou Global Scientific and Technological Innovation CenterZhejiang UniversityHangzhou 310058/311200China Zhejiang Laboratory Hangzhou 311121China Department of Genetics and Plant Breeding Sylhet Agricultural UniversitySylhet 3100Bangladesh Department of Energy Plant Research Laboratory and Plant Biology Department Michigan State UniversityEast LansingMichiganUSA Department of Plant Biology Michigan State UniversityEast LansingMichiganUSA

Protein ubiquitination regulates diverse cellular processes in eukaryotic organisms,from growth and development to stress *** subjected to ubiquitination can be found in virtually all subcellular locations and organelles,including peroxisomes,singlemembrane and highly dynamic organelles ubiquitous in *** contain metabolic functions essential to plants and animals such as lipid catabolism,detoxification of reactive oxygen species(ROS),biosynthesis of vital hormones and cofactors,and *** peroxisomes possess a complex proteome with functions varying among different tissue types and developmental stages,and during plant response to distinct environmental ***,how these diverse functions are regulated at the post-translational level is poorly understood,especially in *** this review,we summarized current knowledge of the involvement of protein ubiquitination in peroxisome protein import,remodeling,pexophagy,and metabolism,focusing on plants,and referencing discoveries from other eukaryotic systems when *** on previous ubiquitinomics studies,we compiled a list of 56 ubiquitinated Arabidopsis peroxisomal proteins whose functions are associated with all the major plant peroxisomal metabolic *** discovery suggests a broad impact of protein ubiquitination on plant peroxisome functions,therefore substantiating the need to investigate this significant regulatory mechanism in peroxisomes at more depths.

关键词： peroxins peroxisome peroxisome biogenesis peroxisome metabolism pexophagy ubiquitination

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Self-assembled, highly-lithiophilic and well-aligned biomass engineered MXene paper enables dendrite-free lithium metal anode in carbonate-based electrolyte

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Journal of Energy Chemistry 2022年第6期31卷 221-230,I0007页

作者： Liwen Tan Chuanliang Wei yuchan zhang Shenglin Xiong Hui Li Jinkui Feng Key Laboratory for Liquid-Solid Structural Evolution&Processing of Materials(Ministry of Education) Research Center for Carbon NanomaterialsSchool of Materials Science and EngineeringShandong UniversityJinan 250061ShandongChina School of Chemistry and Chemical Engineering Shandong UniversityJinan 250061ShandongChina Key Laboratory for Liquid-Solid Structural Evolution&Processing of Materials(Ministry of Education) Shandong UniversityJinan 250061ShandongChina

Lithium metal anode is the ideal candidate for high-energy–density rechargeable ***,uncontrolled dendrite growth hampers its ***,a dendrite-free composite Li metal anode is realized by a flexible,freestanding,well-aligned and highly-lithiophilic MXene paper designed by a facile electrostatic self-assembly of the exfoliated MXene nanosheets and natural polysaccharidechitosan (MX@CS).The MX@CS paper gets a well-aligned layered-3D structure with a micro-crumpled surface that can effectively decrease the local current density,guide even Li plating and suppress dendritic Li *** importantly,surface-adsorbed chitosan endows enhanced lithiophilicity for MXene substrate and thus reduces the Li nucleation overpotential,which is confirmed by the density functional theory *** lithiophilic groups on MX@CS surface provide highconcentration Li^(+)anchoring site promoting Li nucleation and laterally inducing uniform Li deposition,which effectively avoids the formation of dendritic *** a result,the MX@CS-Li anode with a dendrite-free Li morphology shows a significantly improved cycling life in commercial carbonatebased *** coupled with LiNi_(0.8)Co_(0.1)Mn_(0.1)O_(2)cathode,the full cell exhibits a low capacity decay and steady ultrahigh Coulombic efficiency of 99.6%at a current density of *** findings develop a new approach for designing high-performance metal-based rechargeable batteries.

关键词： MXene Polysaccharide Free dendrite High lithiophilicity Lithium metal anode

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原位式准静态压电材料温度特性测试系统研发

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现代电子技术 2024年第16期47卷 28-32页

作者：张雨禅史翔唐梓巍刘媛媛杜慧玲西安科技大学材料科学与工程学院陕西西安710054

压电材料的压电-温度特性会直接影响到压电器件的工作稳定性,是压电器件研发的重要依据。文中基于准静态测量方法研制上、下位机系统,实现了原位压电-温度特性测试。其次,设计开发了变温管式炉、激振器驱动、信号调理与采集电路,构建了... 详细信息

压电材料的压电-温度特性会直接影响到压电器件的工作稳定性,是压电器件研发的重要依据。文中基于准静态测量方法研制上、下位机系统,实现了原位压电-温度特性测试。其次,设计开发了变温管式炉、激振器驱动、信号调理与采集电路,构建了准确的滤波与工频陷波算法。实测结果表明,所设计系统测试结果稳定,能够准确测量压电-温度特性并标定压电材料相变温度,可为压电器件设计提供重要的参考。

关键词：压电器件变温系统准静态测量方法压电-温度特性数字滤波相变温度

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Study on the reaction of 3-methyl-2-butenal and 3-methylbutanal with Cl atoms: kinetics and reaction mechanism

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Journal of Environmental Sciences 2022年第6期34卷 25-33页

作者： Bo Shi Weigang Wang Cici Fan yuchan zhang Zheng Sun Yanli Zeng Maofa Ge College of Chemistry and Material Sciences Hebei Normal UniversityShijiazhuang 050024China State Key Laboratory for Structural Chemistry of Unstable and Stable Species Beijing National Laboratory for Molecular Sciences(BNLMS)Institute of ChemistryChinese Academy of SciencesBeijing 100190China Lanfang Normal University Langfang 065000China National Demonstration Center for Experiment Chemistry Hebei Normal UniversityShijiazhuang 050024China Key Laboratory of Inorganic Nano-material of Hebei Province Shijiazhuang 050024China

The reaction of Cl atoms with two C5aldehydes(3-methyl-2-butenal and 3-methylbutanal)were investigated by proton-transfer-reaction mass spectrum(PTR-MS)using smog chamber at 298±1 K and 760 Torr.A relative rate method was used to determine the rate constants of the title reactions with m-xylene and trans-2-butene as reference compounds:(3.04±0.18)×10^(-10)and(2.07±0.14)×10^(-10)cm^(3)/(molecule·sec)for 3-methyl-2-butenal and 3-methylbutanal,***,the gas-phase products were also identified by PTR-MS,and the possible reaction mechanisms were proposed basing on the identified *** detected gas-phase products are similar for two C5aldehydes reactions,mainly including small molecules of aldehydes,ketones and chlorinated aldehyde *** atmospheric lifetimes(τ)calculated for 3-methyl-2-butenal(τ=7.0 hr,marine boundary layer(MBL))and 3-methylbutanal(τ=10.3 hr,MBL)according to the obtained rate *** results indicate that Cl atoms at MBL are competitive with OH radicals for the degradation contribution of C5aldehyde compounds.

关键词： Smog chamber Kinetic Reaction mechanism Cl atoms

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Room-temperature liquid metal engineered iron current collector enables stable and dendrite-free sodium metal batteries in carbonate electrolytes

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Journal of Materials Science & Technology 2022年第20期115卷 156-165页

作者： Chuanliang Wei Liwen Tan yuchan zhang Huiyu Jiang Baojuan Xi Shenglin Xiong Jinkui Feng Key Laboratory for Liquid-Solid Structural Evolution&Processing of Materials(Ministry of Education) Research Center for Carbon NanomaterialsSchool of Materials Science and EngineeringShandong UniversityJinan 250061China School of Chemistry and Chemical Engineering Shandong UniversityJinan 250100China

Metallic sodium(Na)is believed to be a promising anode material for sodium-ion batteries(SIBs)due to its low electrochemical potential,high theoretical specific capacity,superior electrical conductivity,and so ***,issues such as high chemical activity,the growth of Na dendrites,large volume change,and unstable interface impede its practical *** design a cheap iron(Fe)-based substrate decorated by a thin liquid metal Ga layer for stable and dendrite-free Na metal anodes in low-cost carbonate *** inherent mechanism of Ga-based liquid metal in inhibiting the growth of Na dendrites was revealed for the first *** metal Ga with sodiophilic property can act as nucleation seeds to decrease the nucleation barrier and induce homogeneous Na+flux,resulting in uniform and dendrite-free Na *** cells with Na_(3)V_(2)(PO_(4))_(3) cathode were also assembled to verify the practical application ability of the modified Na metal *** the regulation of the liquid metal layer,the Coulombic efficiency,cycling life,and capacity of batteries are obviously *** strategy proposed here cannot only reduce the cost of batteries but also improve their electrochemical and safety performance.

关键词： Stainless steel Current collector Sodium metal anode Liquid metal Carbonate electrolyte

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82300 DWT多用途船混合电力系统设计应用

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船电技术 2024年第6期44卷 11-14,19页

作者：张丁标卢园园张育婵夏冬梅中船黄埔文冲船舶有限公司广东广州510715 广船国际有限公司广东广州510715

针对配置有高压岸电系统、储能系统、轴带发电机以及储能系统等多种能源运行模式复杂实船设计及应用情况,以82300多用途船作为研究对象,研究储能系统、高压岸电系统组成、设备配置、系统运行模式要求等方面的内容,同时结合本船甲板的四... 详细信息

针对配置有高压岸电系统、储能系统、轴带发电机以及储能系统等多种能源运行模式复杂实船设计及应用情况,以82300多用途船作为研究对象,研究储能系统、高压岸电系统组成、设备配置、系统运行模式要求等方面的内容,同时结合本船甲板的四台吊机的操作负荷情况,通过合理的设置,使其达到最优负荷分配,结果表明,通过合理系统设计、配置,可以满足多种供电设备协调工作,使船舶处于最优供电情况,以减少船舶的排放和能耗损失。

关键词： 82300DWT多用途船高压岸电系统轴带发电机储能系统甲板吊机供电模式

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