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Yolk–shell Au@carbon nanospheres with photothermal and electronplunder sterilization for infected wound healing

Science China Materials 2025年第2期68卷 597-609页

作者： Jin Chai Changzhen Qu Kunpeng Li jiaheng liang Qian Zhou Rong Zhuang Shuo Wang Fei Xu Qingyan Jia Peng Li Frontiers Science Center for Flexible Electronics(FSCFE) Xi’an Institute of Flexible Electronics(IFE)and Xi’an Institute of Biomedical Materials&Engineering(IBME)Northwestern Polytechnical UniversityXi’an 710072China State Key Laboratory of Solidification Processing Center for Nano Energy MaterialsSchool of Materials Science and EngineeringNorthwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene(NPU)Xi’an 710072China

Highly pathogenic-resistant bacteria infectionsseriously hinder the wound healing process and induce a catastrophic threat to human health. Incorporating multipleantibacterial strategies into nanostructured materials has beenverified to possess paramount promise for amelioratingtherapeutic efficiency against resistant bacteria. Herein, amultifunctional yolk–shell nanocomposite (Au@HCN) comprised of an aurum (Au) core and hollow carbon nanosphere(HCN) shell was prepared via one-step copolymerization andcarbonization. The electron plunder by Au@HCN on thebacterial membrane leads to bacterial membrane depolarization and enhanced reactive oxygen species (ROS) metabolism,resulting in remarkable efficacy against drug-resistant bacteriaunder dark conditions. Moreover, the synergetic photothermaltherapy (PTT) displayed significant antibacterial properties(~98%) when exposed to near-infrared (NIR) irradiation invitro. Meanwhile, efficient eradication of drug-resistant bacteria in the infected wound in vivo was observed under NIRexposure, thereby promoting wound healing through theprominent antibacterial properties of Au@HCN. The yolk–shell Au@HCN possesses tremendous potential for combatingmultidrug resistance with high efficiency.

关键词： wound infection drug-resistant bacteria photothermal therapy electron transfer nanocarbon

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粤港澳大湾区非遗文化元素在现代设计中的融合与创新

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西部皮革 2024年第15期46卷 97-99页

作者：陈苒染刁慧梁家恒谢心雨广东理工学院

文章探讨了粤港澳大湾区非遗元素在现代设计中的应用，并分析了传统与现代的交融对设计领域的影响。通过对粤港澳大湾区非遗元素的研究，探讨了传统民间艺术的艺术价值和社会价值，旨在促进传统文化的传承和发展，为现代设计提供丰富的... 详细信息

文章探讨了粤港澳大湾区非遗元素在现代设计中的应用，并分析了传统与现代的交融对设计领域的影响。通过对粤港澳大湾区非遗元素的研究，探讨了传统民间艺术的艺术价值和社会价值，旨在促进传统文化的传承和发展，为现代设计提供丰富的素材和灵感来源，为相关领域的研究和实践提供参考。

关键词：粤港澳大湾区非遗元素现代设计融合与创新

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Safe and Stable Lithium Metal Batteries Enabled by an Amide-Based Electrolyte

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Nano-Micro Letters 2022年第3期14卷 120-133页

作者： Wanbao Wu Yiyang Bo Deping Li Yihong liang Jichuan Zhang Miaomiao Cao Ruitian Guo Zhenye Zhu Lijie Ci Mingyu Li jiaheng Zhang Sauvage Laboratory for Smart Materials Harbin Institute of Technology(Shenzhen)Shenzhen 518055People’s Republic of China Research Centre of Printed Flexible Electronics School of Materials Science and EngineeringHarbin Institute of Technology(Shenzhen)Shenzhen 518055People’s Republic of China School of Materials Science and Engineering Harbin Institute of Technology(Shenzhen)Shenzhen 518055People’s Republic of China Department of Chemistry University of IdahoMoscowID 83844‑2343USA

The formation of lithium dendrites and the safety hazards arising from flammable liquid electrolytes have seriously hindered the development of high-energy-density lithium metal ***,an emerging amide-based electrolyte is proposed,containing LiTFSI and butyrolactam in different molar ratios.1,1,2,2-Tetrafluoroethyl-2,2,3,3-tetrafluoropropylether and fluoroethylene carbonate are introduced into the amide-based electrolyte as counter solvent and *** well-designed amide-based electrolyte possesses nonflammability,high ionic conductivity,high thermal stability and electrochemical stability(>4.7 V).Besides,an inorganic/organic-rich solid electrolyte interphase with an abundance of LiF,Li3N and Li-N-C is in situ formed,leading to spherical lithium *** formation mechanism and solvation chemistry of amide-based electrolyte are further inves-tigated by molecular dynamics simulations and density functional *** applied in Li metal batteries with LiFePO4 and LiMn2O4 cathode,the amide-based electrolyte can enable stable cycling performance at room temperature and 60℃.This study provides a new insight into the development of amide-based electrolytes for lithium metal batteries.

关键词： Amide-based electrolyte Nonflammable Inorganic/organic-rich solid electrolyte interphase Dendrite-free Lithium metal batteries

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Additively Manufactured Flexible Electronics with Ultrabroad Range and High Sensitivity for Multiple Physiological Signals'Detection

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Research 2022年第4期2022卷 707-717页

作者： Huanhuan Feng Yaming Liu liang Feng Limeng Zhan Shuaishuai Meng Hongjun Ji jiaheng Zhang Mingyu Li Peng He Weiwei Zhao Jun Wei Sauvage Laboratory for Smart Materials Shenzhen Key Laboratory of Flexible Printed Electronics TechnologyHarbin Institute of Technology(Shenzhen)China State Key Laboratory of Advanced Welding and Joining(Shenzhen) Harbin Institute of Technology(Shenzhen)China State Key Laboratory of Advanced Welding and Joining Harbin Institute of TechnologyChina

Flexible electronics can be seamlessly attached to human skin and used for various purposes, such as pulse monitoring, pressure measurement, tensile sensing, and motion detection. Despite their broad applications, most flexible electronics do not possess both high sensitivity and wide detection range simultaneously;their sensitivity drops rapidly when they are subjected to even just medium pressure. In this study, ultrabroad-range, high-sensitivity flexible electronics are fabricated through additive manufacturing to address this issue. The key to possess high sensitivity and a wide detection range simultaneously is to fabricate flexible electronics with large depth-width ratio circuit channels using the additive manufacturing inner-rinsing template method. These electronics exhibit an unprecedented high sensitivity of 320 kPa^(−1) over the whole detection range, which ranges from 0.3 to 30,000 Pa (five orders of magnitude). Their minimum detectable weight is 0.02 g (the weight of a fly), which is comparable with human skin. They can stretch to over 500% strain without breaking and show no tensile fatigue after 1000 repetitions of stretching to 100% strain. A highly sensitive and flexible electronic epidermal pulse monitor is fabricated to detect multiple physiological signals, such as pulse signal, breathing rhythm, and real-time beat-to-beat cuffless blood pressure. All of these signals can be obtained simultaneously for detailed health detection and monitoring. The fabrication method does not involve complex expensive equipment or complicated operational processes, so it is especially suitable for the fabrication of large-area, complex flexible electronics. We believe this approach will pave the way for the application of flexible electronics in biomedical detection and health monitoring.

关键词： fatigue additive stretching

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壮医经筋推拿对神经病理性疼痛大鼠去泛素化酶BRCC3去泛素化修饰的影响及镇痛机制研究

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国际中医中药杂志 2025年第02期47卷 190-195页

作者：伍思琦郑胜罗晟文关嘉恒何育风梁英业甘炜广西中医药大学研究生院南宁广西中医药大学第一附属医院推拿科南宁

目的探讨壮医经筋推拿对神经病理性疼痛(NPP)模型大鼠去泛素化酶BRCA1/BRCA2的复杂亚基3(BRCC3)的去泛素化修饰及其镇痛作用机制。方法将大鼠按随机数字表法分为正常组、假手术组、模型组、假推拿组和壮医经筋推拿组, 每组9只。除正常... 详细信息

目的探讨壮医经筋推拿对神经病理性疼痛(NPP)模型大鼠去泛素化酶BRCA1/BRCA2的复杂亚基3(BRCC3)的去泛素化修饰及其镇痛作用机制。方法将大鼠按随机数字表法分为正常组、假手术组、模型组、假推拿组和壮医经筋推拿组, 每组9只。除正常组和假手术组外, 其余各组制备脊神经结扎模型。术后第1天开始对壮医经筋推拿组、假推拿组进行干预, 持续干预14 d, 其余3组不予干预;于术前0 d及术后1、7、14 d分别测定各组大鼠机械性刺激缩足阈值(PWMT)和热痛缩足反应潜伏期(PWTL), 采用Western blot法检测脊髓组织BRCC3、NOD样受体热蛋白结构域相关蛋白3(NLRP3)蛋白表达, 采用ELISA法检测血清IL-1β水平。结果与模型组比较, 术后7、14 d壮医经筋推拿组PWMT、PWTL升高(P<0.05), 脊髓组织NLPR3、BRCC3表达降低(P<0.05), 血清IL-1β水平降低(P<0.05);与假推拿组比较, 术后7、14 d壮医经筋推拿组PWMT、PWTL升高(P<0.05), 脊髓组织中NLRP3蛋白表达降低(P<0.05), 血清IL-1β水平降低(P<0.05)。结论壮医经筋推拿可减轻脊神经结扎模型大鼠痛敏反应, 其机制与抑制去泛素化酶BRCC3表达, 升高NLRP3泛素化水平, 阻碍NLRP3活化, 从而阻断炎症因子介导的免疫炎症反应有关。

关键词：镇痛壮医经筋推拿神经病理性疼痛去泛素化大鼠

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Large-scale direct regeneration of LiFePO_(4)@C based on spray drying

Industrial Chemistry & Materials

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Industrial Chemistry & Materials 2023年第2期1卷 254-261页

作者： Yongxing Zou Jinwei Cao Hao Li Wanbao Wu Yihong liang jiaheng Zhang Sauvage Laboratory for Smart Materials Harbin Institute of Technology(Shenzhen)Shenzhen518055China Research Centre of Printed Flexible Electronics School of Materials Science and EngineeringHarbin Institute of Technology(Shenzhen)Shenzhen518055China

Direct regeneration is a low-cost and environmentally friendly way of recycling spent Li-ion *** this study,a new method is adopted to regenerate spent LiFePO_(4).First,the spent LiFePO_(4) powder is homogenized,and then,small amounts of a lithium source and a carbon source are thoroughly mixed by spray *** that,a high-temperature solid-phase method is used to regenerate the carbon-coated lithium iron *** with traditional regeneration methods,the proposed method significantly improves the universality of spent LiFePO_(4) having different degrees of *** regenerated LiFePO_(4) is characterized using X-ray diffraction,scanning electron microscopy,transmission electron microscopy,Raman spectroscopy,and electrochemical *** results show that the regenerated sample has a stable morphology,structure,and electrochemical *** the conditions of 0.1C,the initial capacity exceeds 160 mA h g^(-1).After 800 cycles under the conditions of 1C,the capacity retention is 80%,which satisfies the requirements for regenerated LiFePO_(4) batteries.

关键词： LiFePO_(4) Direct regeneration Homogenization Spray drying Electrochemical performance

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LDPC Decoding for Signal Dependent Visible Light Communication Channels

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ZTE Communications 2016年第2期14卷 41-46页

作者： YUAN Ming SHA Xiaoshi liang Xiao JIANG Ming WANG jiaheng ZHAO Chunming National Mobile Communications Research Laboratory Southeast University

Avalanche photodiodes （APD） are widely employed in visible light communication （VLC） systems. The general signal dependent Gaussian channel is investigated. Experiment results reveal that symbols on different constellation points under official illuminance inevitably suffer from different levels of noise due to the multiplication process of APDs. In such a case, conventional log likely-hood ratio （LLR） calculation for signal independent channels may cause performance loss. The optimal LLR calculation for decoder is then derived because of the existence of non-ignorable APD shot noise. To find the decoding thresholds of the optimal and suboptimal detection schemes, the extrinsic information transfer （EXIT） chat is further analyzed. Finally a modified minimum sum algorithm is suggested with reduced complexity and acceptable performance loss. Numerical simulations show that, with a reg- ular （3, 6） low-density parity check （LDPC） code of block length 20,000, 0.7 dB gain is achieved with our proposed scheme over the LDPC decoder designed for signal independent noise. It is also found that the coding performance is improved for a larger modulation depth.

关键词： VLC APD shot noise LDPC code

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Classification and Evaluation of a Shale Oil Reservoir in the Qingshankou Formation in the Southern Songliao Basin， NE China

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Journal of Earth Science 2023年

作者： Guofeng Wang Dawei Zhang liang Yang Yongqing Zhang Junling He Jilin Xing Jun Jiang Jijun Li Shuning Zhang Chenxu Yan Hang You Ketao Zheng Yinwu Zhang jiaheng Xue Jilin Oilfield Company Ltd.，PetroChina National Key Laboratory of Deep Oil and Gas， China University of Petroleum Department of Physics， Xiamen University Malaysia，Bandar Sunsuria

The reservoir’s physical properties control the seepage capacity of the shale oil. Developing a method to classify and identify high-quality reservoirs is important to commercial shale oil production. In this study， the Qingshankou Formation shale oil reservoir in the southern Songliao Basin in China was selected. A series of reservoir characterization experiments were conducted to investigate the characteristics of the micropore structure of the reservoir and its influencing factors. A shale reservoir classification evaluation standard was established using fractal theory. It is based on the reservoir micro- and macrocharacteristics. The research results show that the reservoir qualities are controlled by mineral composition， sedimentation， and diagenesis. The larger the pore-throat ratio of the reservoir， the more significant the permeability decrease under compaction. A pore size classification standard based on the shale pore characteristics can be established using fractal theory. There is a coupling relationship between pore size and macroscopic physical properties， which can be used to establish the evaluation standard of the reservoir. Based on the division of hydraulic flow units， the standard can be applied to predict favorable reservoirs.

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时间关系识别研究进展

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中文信息学报 2011年第5期25卷 44-52页

作者：谭红叶郑家恒梁吉业山西大学计算机与信息技术学院山西太原030006 太原国家高新技术产业开发区山西太原030006

时间关系识别是自然语言中语义处理的一个重要任务,近年来得到了广泛的关注和快速的发展。该文参考大量的文献资料,总结了当前时间关系识别在标准、资源和评测中的进展,分析了研究中采用的多种方法和技术,探讨了研究中存在的问题和未来... 详细信息

时间关系识别是自然语言中语义处理的一个重要任务,近年来得到了广泛的关注和快速的发展。该文参考大量的文献资料,总结了当前时间关系识别在标准、资源和评测中的进展,分析了研究中采用的多种方法和技术,探讨了研究中存在的问题和未来研究的重点。

关键词：时间关系自然语言处理综述

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社会网络和同伴效应视角下农户农业绿色技术采用研究综述

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中国农业资源与区划 2023年第2期44卷 119-130页

作者：刘瑞峰王剑李佳恒梁飞马恒运河南农业大学经济与管理学院

[目的]农业绿色技术的推广和应用有助于促进农业集约经营、实现农业生态良性循环、推动农业由“量”到“质”转变。文章旨在对社会网络、同伴效应与农户技术采用之间关系进行系统阐述与分析，发现现有研究不足，提出进一步研究方向。[方... 详细信息

[目的]农业绿色技术的推广和应用有助于促进农业集约经营、实现农业生态良性循环、推动农业由“量”到“质”转变。文章旨在对社会网络、同伴效应与农户技术采用之间关系进行系统阐述与分析，发现现有研究不足，提出进一步研究方向。[方法]采用文献研究法和总结归纳法，以社会网络、同伴效应与农户技术采用之间关系研究的主要内容为主线，从农业技术采用、社会网络与农户技术采用、个体行为与同伴效应识别、同伴效应形成机制四个方面对现有研究进行梳理、概括和评价。[结果]目前政府和学界对农户绿色技术采用行为展开了大量研究，但大多强调农户自身特征或决策对绿色技术采用行为的影响，在很大程度上忽略了社会网络，以及同伴效应对农户绿色技术采用所起的作用。[结论]未来应深化社会网络、同伴效应对农户技术采用的影响机制的定量及动态研究；应进一步探索社会网络和同伴效应的“中国特色”；应丰富和改进研究方法和实验技术。

关键词：农户绿色技术采用社会网络同伴效应农业绿色发展综述

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