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Moisture‑Electric–Moisture‑Sensitive Heterostructure Triggered Proton Hopping for Quality‑Enhancing Moist‑Electric Generator

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Nano-Micro Letters 2024年第3期16卷 351-366页

作者： Ya’nan Yang Jiaqi Wang Zhe Wang Changxiang Shao yuyang han Ying Wang Xiaoting Liu Xiaotong Sun Liru Wang Yuanyuan Li Qiang Guo Wenpeng Wu Nan Chen Liangti Qu Key Laboratory of Cluster Science Ministry of Education of ChinaKey Laboratory of Photoelectronic/Electrophotonic Conversion MaterialsSchool of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 100081People’s Republic of China Yangtze Delta Region Academy of Beijing Institute of Technology Jiaxing 314019People’s Republic of China Department of Chemistry Key Laboratory of Organic Optoelectronics&Molecular EngineeringMinistry of EducationTsinghua UniversityBeijing 100084People’s Republic of China

Moisture-enabled electricity(ME)is a method of converting the potential energy of water in the external environment into electrical energy through the interaction of functional materials with water molecules and can be directly applied to energy harvesting and signal ***,ME can be unreliable in numerous applications due to its sluggish response to moisture,thus sacrificing the value of fast energy harvesting and highly accurate information ***,by constructing a moisture-electric-moisture-sensitive(ME-MS)heterostructure,we develop an efficient ME generator with ultra-fast electric response to moisture achieved by triggering Grotthuss protons hopping in the sensitized ZnO,which modulates the heterostructure built-in interfacial potential,enables quick response(0.435 s),an unprecedented ultra-fast response rate of 972.4 mV s^(−1),and a durable electrical signal output for 8 h without any *** research provides an efficient way to generate electricity and important insight for a deeper understanding of the mechanisms of moisture-generated carrier migration in ME generator,which has a more comprehensive working scene and can serve as a typical model for human health monitoring and smart medical electronics design.

关键词： Moist-electric generators Grotthuss proton hopping Fast response Durable electrical output Personal health monitoring

度普利尤单抗治疗12例儿童慢性自发性荨麻疹回顾分析

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中华皮肤科杂志 2024年第3期57卷 254-257页

作者：李垣君寒宇阳张焕珍王慧申楠张杏莲山西省儿童医院皮肤科太原030013

目的观察度普利尤单抗治疗儿童慢性自发性荨麻疹(CSU)的短期疗效及安全性。方法回顾分析2021年4月至2022年4月山西省儿童医院皮肤科收治的经H1抗组胺药治疗无效并接受度普利尤单抗皮下注射治疗的CSU患儿的临床资料。使用7日荨麻疹活动... 详细信息

目的观察度普利尤单抗治疗儿童慢性自发性荨麻疹(CSU)的短期疗效及安全性。方法回顾分析2021年4月至2022年4月山西省儿童医院皮肤科收治的经H1抗组胺药治疗无效并接受度普利尤单抗皮下注射治疗的CSU患儿的临床资料。使用7日荨麻疹活动度评分(UAS7)、荨麻疹控制评分(UCT)、慢性荨麻疹患者生活质量评估问卷(CU-Q2oL)评估患儿的病情变化、控制情况及生活质量,监测停药后复发和不良事件。每4周评估1次,随访时间为6个月。结果12例CSU患儿纳入分析,男6例,女6例,2~6岁5例,7~12岁7例,6例患儿同时合并哮喘、过敏性鼻炎或特应性皮炎;基线期UCT为(6.00±1.48)分,UAS7为(30.17±1.99)分,CU-Q2oL为(38.08±3.87)分。度普利尤单抗治疗4周时,7例有效,其中3例完全控制;治疗12周时9例有效,其中6例完全控制;在24周观察终点时,11例有效,其中9例达到完全控制(UCT=16分),2例控制良好(UCT均为12分),1例未控制(UCT<12分);12例CSU患儿UCT升至(14.83±2.17)分,UAS7降至(0.33±0.65)分,CU-Q2oL降至(0.67±1.30)分。6例有共病的患儿经治疗后共病症状均有明显改善。1例在注射第2针后出现双足跖红斑,未经处理自行消退。结论度普利尤单抗治疗儿童CSU有效,并可改善共患病,综合提高患儿生活质量,安全性良好。

关键词：荨麻疹慢性自发性荨麻疹儿童度普利尤单抗

武汉市冬季重污染过程中PM_(2.5)组分特征与区域来源解析

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中国环境监测 2024年第3期40卷 47-59页

作者：王健颖唐晓陈科艺胡柯王瑶丁宁韩雨阳成都信息工程大学大气科学学院四川成都610225 中国科学院大气物理研究所大气边界层物理和大气化学国家重点实验室北京100029 湖北省武汉市环境监测中心湖北武汉430015 贵州省台江县气象局贵州台江556300

随着《大气污染防治行动计划》和《打赢蓝天保卫战三年行动计划》的相继实施,在高强度的污染治理下,中东部地区PM_(2.5)污染改善效果显著。为探讨在PM_(2.5)浓度不断降低的背景下,仍时有发生的武汉冬季重污染过程的成因及特征,以2020年1... 详细信息

随着《大气污染防治行动计划》和《打赢蓝天保卫战三年行动计划》的相继实施,在高强度的污染治理下,中东部地区PM_(2.5)污染改善效果显著。为探讨在PM_(2.5)浓度不断降低的背景下,仍时有发生的武汉冬季重污染过程的成因及特征,以2020年12月武汉地区一次长达10 d的重污染过程为例,利用多种观测数据和嵌套网格空气质量预报模式系统(NAQPMS)分析污染过程中PM_(2.5)的化学组分特征和区域贡献等。结果表明:污染日二次无机盐SNA(SO_(4)^(2-)、NO_(3)^(-)和NH+4)和碳质组分(EC和OC)在PM_(2.5)中的占比高(分别为78%和18%),NO_(3)^(-)的占比从清洁日的36%上升到污染日的46%,是污染过程中占比最高的化学组分。污染期间,NO_(3)^(-)和SO_(4)^(2-)的浓度比为2.9~6.1,因此二次无机盐的主要来源可能是移动源;OC和EC的浓度比为3.0~9.8,因此碳质组分的主要来源可能是燃煤源。污染期间主要有河南-孝感-武汉和安徽-黄冈-武汉2条污染传输带,污染物传输以武汉周边城市的近距离输送为主,随着污染程度加重,武汉本地及武汉城市圈的区域贡献增加。重度污染天是静稳天气下持续的偏弱东风和西北风输送的污染气团在不易扩散的天气条件下累积形成的。

关键词： PM_(2.5) 污染过程区域传输武汉市

基于Transformer与图卷积网络的行为冲突检测模型

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信息安全研究 2024年第8期10卷 729-737页

作者：文津蒋凯元韩禹洋王志强罗乐琦田文亮北京电子科技学院北京100070 国家公共信用信息中心北京100045

近年来,随着监控摄像头的不断增多和互联网的迅速发展,监控视频与网络视频越来越多,对视频进行自动行为冲突检测对降低人为审核导致的隐私信息泄露风险及维护社会治安、净化网络环境等具有重要意义.为了充分提取视频中的行为冲突特征,... 详细信息

近年来,随着监控摄像头的不断增多和互联网的迅速发展,监控视频与网络视频越来越多,对视频进行自动行为冲突检测对降低人为审核导致的隐私信息泄露风险及维护社会治安、净化网络环境等具有重要意义.为了充分提取视频中的行为冲突特征,并获得有较好泛化能力与检测效果的模型,采用I3D(inflated 3D convolutional network)与VGGish,基于XD-Violence进行多模态特征的提取,并提出了基于Transformer和图卷积网络的行为冲突检测模型TG-BCDM(behavior conflict detection model based on Transformer and graph convolution networks).该模型包含Transformer编码器模块和图卷积模块,可以在有效捕捉视频中长距离依赖关系的同时,关注视频特征的全局信息和局部信息.经过实验证明,该模型优于现有的8种方法.

关键词：突检测动作识别多模态特征融合 Transformer 图卷积网络

A bi-component polyoxometalate-derivative cathode material showed impressive electrochemical performance for the aqueous zinc-ion batteries

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Chinese Chemical Letters 2022年第8期33卷 3955-3960页

作者： Rui Huang Weiwei Wang Chi Zhang Peng He yuyang han Nuo Chen Jun Yan College of Chemistry and Chemical Engineering Central South UniversityChangsha 410083China Hunan Provincial Key Laboratory of Chemical Power Sources Central South UniversityChangsha 410083China Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources Central South UniversityChangsha 410083China Hunan Provincial Key Laboratory of Micro&Nano Materials Interface Science Central South UniversityChangsha 410083China Changsha Changjun High School Changsha 410002China

Rechargeable aqueous zinc-ion batteries are recently gaining incremental attention because of low cost and material abundance,but their development is plagued by limited choices of cathode materials with satisfactory cycling *** polyoxometalates perform formidable redox stability and able to participate in multi-electron transfer,which was well-suited for energy ***,a bicomponent polyoxometalate-derivative KNiVO(K_(2)[Ni(H_(2)O)_(6)]_(2)[V_(10)O_(28)]·_(4)H_(2)O polyoxometalates after annealing)is firstly demonstrated as a cathode material for aqueous *** layered KV_(3)O_(8)(KVO)In the bi-component material constitutes Zn^(2+) migration and storage channels(K^(+) were substantially replaced by Zn^(2+) in the activation phase),and the three-dimensional NiV_(3)O_(8)(NiVO)part acts as skeleton to stabilize the ion channels,which assist the cell to demonstrate a high-rate capacity and specific energy of229.4 mAh/g and satisfactory cyclability(capacity retention of 99.1%after 4500 cycles at a current density of 4 A/g).These results prove the feasibility of POM as cathode materials precursor and put forward a novel pattern of the Zn^(2+)storage mechanism in the activated-KNiVO clusters,which also provide a new route for selecting or designing high-performance cathode for aqueous ZIBs and other advanced battery systems.

关键词： Cathode material Aqueous Zn-ion battery Bi-component material Polyoxometalate-derivative Cathodic activation

Recent progress and challenges in interdigital microbatteries:Fabrication, functionalization and integration

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Journal of Energy Chemistry 2023年第3期78卷 294-314,I0009页

作者： Li Song Xuting Jin Chunlong Dai yuyang han Jiatao Zhang Yang Zhao Zhipan Zhang Liangti Qu Key Laboratory of Cluster Science Ministry of Education of ChinaKey Laboratory of Photoelectronic/Electrophotonic Conversion MaterialsSchool of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 100081China Engineering Research Center of Advanced Functional Material Manufacturing of Ministry of Education School of Chemical EngineeringZhengzhou UniversityZhengzhou 450001Henan China School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education Department of ChemistryTsinghua UniversityBeijing 100084China

Currently,the increasing demands for portable,implantable,and wearable electronics have triggered the interest in miniaturized energy storage *** from conventional energy storage devices,interdigital microbatteries(IMBs) are free of separators and prepared on a single substrate,potentially achieving a short ionic diffusion path and better ***,they can be easily fabricated and integrated into on-chip miniaturized electronics,holding the promise to provide long-lasting power for advanced microelectronic *** date,while many seminal works have been reviewed the topic of microbatteries,there is no work that systematically summarizes the development of IMBs of high energy density and stable voltage platforms from fabrication,functionalization to *** current review focuses on the most recent progress in IMBs,discussing advanced micromachining techniques with compatible features to construct high-performance IMBs with smart functions and intelligent integrated *** future opportunities and challenges of IMBs are also highlighted,calling for more efforts in this dynamic and fast-growing research field.

关键词： Interdigital microbatteries Fabrication Functionalization

Multifunctional devices based on planar microsupercapacitors:Progress and challenges

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Science China Materials 2022年第12期65卷 3202-3228页

作者： Li Song Xuting Jin Chunlong Dai yuyang han Jiatao Zhang Zhipan Zhang Liangti Qu Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials Key Laboratory of Cluster ScienceMinistry of Education of ChinaSchool of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 100081China School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education Department of ChemistryTsinghua UniversityBeijing 100084China

With the boom of portable,wearable,and implantable smart electronics in the last decade,the demand for multifunctional microscale electrochemical energy storage devices has *** to their excellent rate performance,high power density,long cycling lifetime,easy fabrication,and integration,multifunctional planar microsupercapacitors(PMSCs)are deemed as one of the ideal micropower sources for next-generation flexible on-chip ***,we offer a comprehensive overview of the recent progress regarding multifunctional devices based on PMSCs,including stretchable,self-healing,stimulus-responsive,thermosensitive,biodegradable,and temperaturetolerant *** also emphasize the unique applications of multifunctionally integrated PMSCs in the construction of self-powered and sensor-integrated systems in terms of multifunctional operation ***,the key challenges and future prospects related to these multifunctional devices are discussed to stimulate further research in this flourishing field.

关键词： microsupercapacitors planar devices multifunctionality self-powered integrated systems sensor-integrated system

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永磁交变磁场磁粒研磨装置及试验研究

有色设备 2024年第1期38卷 32-35,49页

作者：闫宇航王清阳王荟江安麟柏王本禹韩宇阳姜佳琦丁云龙韩冰辽宁科技大学机械工程与自动化学院辽宁鞍山114051

为改善平面磁粒研磨加工的效果,增强磁场的变化,使磨料进行翻滚更新。本文设计一种永磁交变磁场磁粒研磨装置,此装置采用了永磁交变磁极产生的交变磁场进行磁粒研磨加工。利用软件对永磁交变磁场进行模拟仿真,并观察研磨区域磁感应强度... 详细信息

为改善平面磁粒研磨加工的效果,增强磁场的变化,使磨料进行翻滚更新。本文设计一种永磁交变磁场磁粒研磨装置,此装置采用了永磁交变磁极产生的交变磁场进行磁粒研磨加工。利用软件对永磁交变磁场进行模拟仿真,并观察研磨区域磁感应强度的变化。在研磨试验中,用SUS304不锈钢板件作为试验件,研磨时间为30 min,磁性磨料粒径为80目,主轴转速分别为150 r/min、200 r/min、250 r/min。使用超景深显微镜与触针式粗糙度测量仪对工件加工前后的表面形貌与粗糙度进行检测。通过对比可得,SUS304不锈钢板的表面形貌逐渐改善,纹理和凹坑基本去除;表面粗糙度由原始的0.329μm降至0.069μm,达到了光整加工的效果。采用永磁交变磁场磁粒研磨装置可以加快磁性磨粒的更新,使研磨轨迹更加复杂化,从而提升研磨效果,提高研磨效率。

关键词：磁粒研磨永磁交变磁场 SUS304不锈钢表面粗糙度研磨装置模拟仿真光整加工

远程构音语音康复教学对提高听障儿童言语清晰度的个案研究

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长春教育学院学报 2023年第5期39卷 34-39页

作者：韩羽扬赵惠吉林省听力语言康复中心吉林长春130062

功能性构音障碍是听障儿童常见的语音障碍,需要进行言语康复教学干预。通常构音语音训练课程需要线下面对面的教学,但由于地域、时间等原因,有些听障儿童无法持续在康复机构进行言语康复训练。通过对一名6岁听障儿童的个案研究表明,可... 详细信息

功能性构音障碍是听障儿童常见的语音障碍,需要进行言语康复教学干预。通常构音语音训练课程需要线下面对面的教学,但由于地域、时间等原因,有些听障儿童无法持续在康复机构进行言语康复训练。通过对一名6岁听障儿童的个案研究表明,可以通过远程康复教学提高其言语清晰度,在这个过程中,需要家长的协助,同时,需要教师具有较高的专业素养、专业能力及选择合适的远程教育平台。

关键词：听障儿童远程教学构音语音训练