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39th Chinese Control Conference (CCC)

作者： Su, fuwen wang, Dan Mao, Chengxiong Ye, Ziliu Wuhan Univ Technol Sch Comp Sci & Technol Wuhan 430070 Peoples R China Huazhong Univ Sci & Technol Sch Elect & Elect Engn Wuhan 430070 Peoples R China Wuhan Univ Technol Sch Automat Wuhan 430070 Peoples R China

ISBN: (纸本)9789881563903

With the rapid development of distributed energy, the power grid, especially the urban power grid, is facing many challenges. In this paper, the concept of DC distribution station is proposed. As a key component of DC distribution system, DC distribution station will play the advantages of DC distribution technology to promote the transformation of traditional urban power grid into a new urban power grid. A reasonable overall topology is proposed, and the appropriate voltage control strategy is selected. Besides, the simulation model of DC distribution station is built in MATLAB/SIMULINK. The simulation under steady-state condition verifies the feasibility of the DC distribution station and the correctness of the control strategy.

关键词： DC distribution station network configuration voltage control DC distribution network

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Exciton Binding Energy of Non-Fullerene Electron Acceptors

ADVANCED ENERGY AND SUSTAINABILITY RESEARCH

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ADVANCED ENERGY AND SUSTAINABILITY RESEARCH 2022年第4期3卷

作者： Zhu, Yufan Zhao, fuwen wang, Wei Li, Yawen Zhang, Shiming Lin, Yuze Nanjing Tech Univ Key Lab Flexible Elect KLOFE Nanjing 211816 Jiangsu Peoples R China Nanjing Tech Univ Inst Adv Mat IAM Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM Nanjing 211816 Jiangsu Peoples R China Chinese Acad Sci Beijing Natl Lab Mol Sci CAS Key Lab Organ Solids Inst Chem Beijing 100190 Peoples R China Cent South Univ State Key Lab Powder Met Changsha 410083 Peoples R China Univ Chinese Acad Sci Beijing 100049 Peoples R China

The past three years have witnessed the power conversion efficiency (PCE) of organic solar cells (OSCs) rocketing to over 18%, due to outstanding advantages of non-fullerene acceptors (NFAs). However, large exciton binding energy (E (b)) caused by strong Coulombic force is still one of the main limiting factors for high-performance OSCs. Thus, it is critical to reduce the E (b) for further enhancement of device performance. Many strategies have been developed to reduce the E (b) of organic materials previously. In this perspective, the calculation methods for E (b) and the relationship between E (b) and voltage loss (V (loss)) are discussed. Then, the effects of the properties of small-molecule acceptors on E (b) from the perspectives of fused-ring donor cores, end groups, side chains, and molecular packing are discussed. Finally, the potential directions for reducing E (b) and pointing out the trade-off between E (b) and bandgaps/miscibility are put forward. It is hoped that this perspective could provide a new thinking of a molecular design for the breakthrough of OSCs.

关键词： exciton binding energy fused-ring electron acceptors non-fullerene acceptors organic photovoltaics organic solar cells

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切开复位内固定联合带线锚钉修复在踝关节骨折合并三角韧带损伤中的应用效果分析

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中国烧伤创疡杂志 2023年第4期35卷 314-317页

作者：郑富文王峰嵩县西关骨科医院创伤一科河南洛阳471400

目的探讨切开复位内固定(ORIF)联合带线锚钉修复在踝关节骨折合并三角韧带损伤中的应用效果。方法选取2019年5月至2021年5月嵩县西关骨科医院收治的190例踝关节骨折合并三角韧带损伤患者作为研究对象,按照随机数表法将其随机分为观察... 详细信息

目的探讨切开复位内固定(ORIF)联合带线锚钉修复在踝关节骨折合并三角韧带损伤中的应用效果。方法选取2019年5月至2021年5月嵩县西关骨科医院收治的190例踝关节骨折合并三角韧带损伤患者作为研究对象,按照随机数表法将其随机分为观察组(95例)与对照组(95例),观察组患者采用ORIF联合带线锚钉修复治疗,对照组患者单纯采用ORIF治疗,对比观察两组患者内踝间隙、距骨倾斜角、疼痛情况、踝关节功能恢复情况与并发症发生情况。结果术后3个月,观察组患者内踝间隙、距骨倾斜角均明显小于对照组(t=2.792、3.484,P=0.006、0.001),视觉模拟评分法(VAS)评分明显低于对照组(t=3.338,P=0.001);术后3个月,观察组患者踝关节功能恢复为优57例、良34例、可3例、差1例,明显优于对照组患者的踝关节功能恢复为优43例、良41例、可7例、差4例(Z=-2.289,P=0.022);观察组患者术后并发症发生率为4.21%,明显低于对照组患者的术后并发症发生率12.63%(χ^(2)=4.368,P=0.037)。结论 ORIF联合带线锚钉修复治疗踝关节骨折合并三角韧带损伤,可明显缩小内踝间隙及距骨倾斜角,促进踝关节功能恢复,降低术后并发症发生率。

关键词：带线锚钉切开复位内固定踝关节骨折三角韧带损伤踝关节功能

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Synergistic passivation effects of nitrogen plasma and oxygen plasma on improving the interface quality and bias temperature instability of 4H-SiC MOS capacitors

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APPLIED SURFACE SCIENCE 2020年 513卷 145837-000页

作者： Yang, Chao Yin, Zhipeng Zhang, Fanglong Su, Yan Qin, fuwen wang, Dejun Dalian Univ Technol Fac Elect Informat & Elect Engn Sch Control Sci & EngnMinist Educ Key Lab Intelligent Control & Optimizat Ind Equip Dalian 116024 Peoples R China Dalian Univ Technol Minist Educ State Key Lab Mat Modificat Laser Ion & Electron Dalian 116024 Peoples R China

Interface properties and bias temperature instability (BTI) determine the performance and stability of SiC metaloxide semiconductor (MOS) devices. In this work, we propose an electron cyclotron resonance microwave nitrogen-oxygen (N-O) mixed plasma post-oxidation annealing (POA) process to improve the interface properties and BTI of 4H-SiC MOS capacitors. Results showed that the N-O mixed plasma POA reduces the density of interface traps, maintains the stability of the flat band voltage (V-fb) hysteresis under four successive cycles of positive bias temperature stress (PBTS) and negative bias temperature stress (NBTS) at 423 K, and significantly reduces the V(fb )hysteresis under alternating PBTS and NBTS at 100 K. The oxide traps remarkably decreased to 2.27 x 10(12) cm(-2) after N-O mixed plasma POA. The related passivation and improvement mechanisms were further studied by secondary ion mass spectroscopy, X-ray photoelectron spectroscopy, and density functional theory calculations. The synergistic effects of highly reactive N and O plasma promoted the considerable absorption of N at the interface and prevented further oxidation of the SiC substrate. We also elaborate on the effects of N, O, and N-O plasma on the elimination and passivation of O vacancy defects, C-related defects (SiOxCy and C dimer), and Si interstitial defects and discuss implications of the simultaneous suppression of electron and hole trapping.

关键词： 4H-SiC MOS capacitor Density of interface traps Bias temperature instability Synergistic effects Post-oxidation annealing

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Carriers Transport Behavior and Path for Hfox -Based Rram Devices With Improved Performance Bynitrogen Annealing

SSRN

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SSRN 2023年

作者： Bai, Jiao Xie, Weiwei Qu, Dehao Wei, Shengsheng Li, Yue Qin, fuwen wang, Dejun Ministry of Education School of Control Science and Engineering Faculty of Electronic Information and Electrical Engineering Dalian University of Technology Dalian116024 China Key Laboratory of Integrated Circuit and Biomedical Electronic System Liaoning Province. Dalian University of Technology Dalian116023 China Dalian University of Technology Dalian116024 China

The nitrogen annealing can effectively improve the performance of the HfOx-based resistive random access memory (RRAM) devices. However, few more profound research explore the carriers transport behavior and path on nitrogen annealing improving the resistive switching (RS) properties of HfOx-based RRAM. In this work, we systematically investigated the effect of nitrogen annealing on RS performance in Ti/HfOx/Pt RRAM structure by I−V characteristics and the impedance spectroscopy (IS) under different temperatures. The results indicated that nitrogen annealed HfOx films could effectively decrease the operate voltage and enhance RS uniform and stability. The I−V characteristics showed that charge carriers were trapped and released through oxygen vacancy (VO) traps, and hopped conduction along these Vo traps when a Vo conductive filament (CF) was formed, which realized RS. The IS analysis exhibited that the carrier transport was along the VO CF at the grain boundary (GB). Moreover, appropriate GB resistance and capacitance relaxation time were crucial to obtain high-performance RRAM. Further, the first-principles simulation manifested that the VO formation energy at the GB decreased after annealing, which was the microscopic nature for improved device performance. © 2023, The Authors. All rights reserved.

关键词： Relaxation time

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Interfacial Imc Growth Behavior of Sn-3ag-3sb-Xin Solder on Cu Substrate

SSRN

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SSRN 2023年

作者： Zhou, Jiacheng Shi, Jinglin Xu, Lei Zhang, fuwen wang, Zhigang Hu, Qiang He, Huijun Industrial Research Institute for Metal Powder Material GRINM Group Beijing101407 China Beijing COMPO Advanced Technology Co. Ltd Beijing101407 China GRIPM Advanced Materials Co. Ltd. Beijing101407 China General Research Institute for Nonferrous Metals Beijing100088 China

The growth of solder joint interface layer is closely related to the reliability of solder joints. In this work, the growth behavior of the interfacial intermetallic compounds layer between Sn-3Ag-3Sb-xIn/Cu (x=0, 1, 2, 3, 4, 5 wt.%) solder joints and commercial Sn-3Ag-0.5Cu/Cu solder joint was compared during 125 ℃ isothermal aging. The results indicate that more InSb particles are observed in Sn-3Ag-3Sb-xIn/Cu solder joints when the In content exceeds 3 wt.%. The InSb particles form an interfacial barrier that reduces the growth rate of the total intermetallic layer. Meanwhile, the growth rate of the Cu3Sn layer decreases significantly. Our research provides a solution to inhibit the growth of the interface intermetallic layer and further provides valuable help for improving the reliability of solder joints. © 2023, The Authors. All rights reserved.

关键词： Lead-free solders

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DongbaMIE: A Multimodal Information Extraction Dataset for Evaluating Semantic Understanding of Dongba Pictograms

arXiv

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arXiv 2025年

作者： Bi, Xiaojun Li, Shuo wang, Ziyue Luo, fuwen Qiao, Weizheng Han, Lu Sun, Ziwei Li, Peng Liu, Yang College of Information and Engineering Minzu University of China Beijing China Key Laboratory of Ethnic Language Intelligent Analysis and Security Governance of MOE Minzu University of China Beijing China College of Information and Communication Engineering Harbin Engineering University Harbin China Dept. of Comp. Sci. & Tech. Institute for AI Tsinghua University Beijing China Tsinghua University Beijing China

Dongba pictographs are the only pictographs still in use in the world. They have pictorial ideographic features, and their symbols carry rich cultural and contextual information. Due to the lack of relevant datasets, existing research has difficulty in advancing the study of semantic understanding of Dongba pictographs. To this end, we propose DongbaMIE, the first multimodal dataset for semantic understanding and extraction of Dongba pictographs. The dataset consists of Dongba pictograph images and their corresponding Chinese semantic annotations. It contains 23,530 sentence-level and 2,539 paragraph-level images, covering four semantic dimensions: objects, actions, relations, and attributes. We systematically evaluate the GPT-4o, Gemini-2.0, and Qwen2-VL models. Experimental results show that the F1 scores of GPT-4o and Gemini in the best object extraction are only 3.16 and 3.11 respectively. The F1 score of Qwen2-VL after supervised fine-tuning is only 11.49. These results suggest that current large multimodal models still face significant challenges in accurately recognizing the diverse semantic information in Dongba pictographs. The dataset can be obtained from this URL1 © 2025, CC BY-NC-SA.

关键词： Image annotation

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高层胶合木框架-混凝土核心筒结构振动台试验研究

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土木工程学报 2023年第12期56卷 49-58,70页

作者：王明谦许清风冷予冰张富文陈溪陈玲珠上海市建筑科学研究院有限公司上海市工程结构安全重点实验室上海200032

为研究高层胶合木框架-混凝土核心筒结构的抗震性能,设计制作一个缩尺比例为1∶3的12层高层胶合木结构模型,并对模型开展振动台试验。试验中考虑了7度多遇至9度罕遇烈度水平,得到不同水准地震作用下模型的加速度响应、位移响应和层间剪... 详细信息

为研究高层胶合木框架-混凝土核心筒结构的抗震性能,设计制作一个缩尺比例为1∶3的12层高层胶合木结构模型,并对模型开展振动台试验。试验中考虑了7度多遇至9度罕遇烈度水平,得到不同水准地震作用下模型的加速度响应、位移响应和层间剪力分布等,并基于白噪声扫频结果确定模型的动力特性。试验结果表明,高层胶合木框架-混凝土核心筒结构模型的主要破坏集中于混凝土核心筒,胶合木框架的损伤相对有限。模型具有良好的耗能能力,罕遇地震作用下模型的阻尼比均超过10%。模型的各楼层加速度放大系数在0.5~3.0,结构顶层的加速度放大系数明显高于其他楼层。7度多遇地震作用下,模型的最大层间位移角在多数工况下均能满足现行规范的规定,说明高层胶合木框架-混凝土核心筒结构具有良好的抗侧刚度。在8度~9度罕遇地震作用下,模型并未出现倒塌破坏,说明高层胶合木框架-混凝土核心筒结构能满足“大震不倒”的抗震设防目标。

关键词：胶合木框架高层结构混凝土核心筒振动台试验抗震性能

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氯吡格雷联合阿司匹林治疗急性心肌梗死的临床疗效分析

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中国农村卫生 2019年第6期11卷 9-9页

作者：王富文成武县人民医院急诊科 274000

目的:探讨急性心肌梗死采用氯吡格雷与阿司匹林联合方案治疗的疗效。方法:选取92例急性心肌梗死患者随机分为两组,将采用阿司匹林治疗的46例患者设置为对照组,将采用氯吡格雷与阿司匹林联合方案治疗的46例患者设置为观察组,对比两组患... 详细信息

目的:探讨急性心肌梗死采用氯吡格雷与阿司匹林联合方案治疗的疗效。方法:选取92例急性心肌梗死患者随机分为两组,将采用阿司匹林治疗的46例患者设置为对照组,将采用氯吡格雷与阿司匹林联合方案治疗的46例患者设置为观察组,对比两组患者的临床疗效及不良反应发生率。结果:与对照组相比,观察组治疗总有效率更高,组间比较有显著性差异(P <0.05)。结论:氯吡格雷与阿司匹林联合治疗方案可作为治疗急性心肌梗死的优选治疗方案之一,临床予以推广应用。

关键词：氯吡格雷阿司匹林急性心肌梗死疗效

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青藏高原羌塘盆地首口油气科探井(QK-1)新发现

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科学通报 2022年第3期67卷 321-328页

作者：王剑王忠伟付修根宋春彦谭富文韦恒叶西南石油大学油气藏地质与开发工程国家重点实验室成都610500 西南石油大学羌塘盆地研究院成都610500 西南石油大学地球科学与技术学院成都610500 中国地质调查局成都地质调查中心成都610081

羌科-1井(QK-1)是藏北高原第一口油气地质科学探井,也是目前世界上海拔最高的科探井.通过实施羌塘盆地科探井及其配套地质浅钻,在油气封盖条件、优质烃源岩、油气显示及地层沉积序列等方面取得了一系列新发现.钻探发现了两套区域性优质... 详细信息

羌科-1井(QK-1)是藏北高原第一口油气地质科学探井,也是目前世界上海拔最高的科探井.通过实施羌塘盆地科探井及其配套地质浅钻,在油气封盖条件、优质烃源岩、油气显示及地层沉积序列等方面取得了一系列新发现.钻探发现了两套区域性优质盖层:雀莫错组(J_(1-2)q)硬石膏层厚达353.8~365.0 m,夏里组(J_(2x))含膏泥质岩厚达230.0~252.0 m.钻井、地震资料及沉积相综合分析表明,这些盖层区域分布连续、稳定,同时油气封盖性能良好,从而证实羌塘盆地具备较好的油气封盖条件.与QK-1配套的地质浅钻揭示,北羌塘盆地边缘带上三叠统滨岸沼泽至三角洲平原相区发育了较好的烃源岩.泥质烃源岩总有机碳(total organic carbon,TOC)含量达2.0%~3.6%,厚36.0 m,TOC含量大于1%的烃源岩厚达61.0 m.有机质类型包括II_(1)、II_(2)和III型,热演化程度为高成熟-过成熟阶段,以生气为主.预测北羌塘盆地中心覆盖区前三角洲至陆棚相区可能具有比盆地边缘相带更好的优质烃源岩.因此,北羌塘盆地不仅存在优质烃源岩,而且可能还具有较大的生烃潜力.QK-1共揭示14层气测异常,结合地表露头油气显示,表明羌塘盆地有过大规模油气生成聚集与破坏过程,同时存在油气有利保存区带.QK-1钻遇了侏罗系完整连续的地层沉积序列,总体上表现为冲洪积相逐渐演化为滨至浅海相及碳酸盐台地,地层沉积序列资料为羌塘含油气盆地分析提供了新的依据.

关键词：羌科-1井(QK-1) 封盖层烃源岩油气显示沉积序列羌塘盆地

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