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CSEE Journal of Power and Energy Systems 2023年第2期9卷 790-801页

作者： Yao Zhong Jian Hao Xupeng Wang Ruijin Liao Ruilei Gong yilin ding State Key Laboratory of Power Transmission Equipment&System Security and New Technology University of ChongqingChongqing 400044China Shandong Taikai High Voltage Swichgear Co.Ltd. Taian 271000China

Mechanical defects,in gas-insulated switchgear(GIS)equipment,have weak response characteristics,leading to significant difficulties in the classification of ***,this paper proposes a novel mechanical defect feature extraction and classification method that combines independent intrinsic mode function(IIMF)analysis and an improved multikernel mapping fast multi-classification relevance vector machine(MKF-mRVM).Enlightened by the differences in the GIS operating vibration mode,the IIMF series were first obtained based on regenerated phase-shifted sinusoid-assisted empirical mode decomposition(RPSEMD)and modal *** singular value decomposition and time-frequency conversions were performed to construct combined feature ***,multikernel mapping and domain sampling were introduced to improve the calculation speed and recognition accuracy of the mRVM,which was more suitable for on-line *** show that the proposed RPSEMD-MKF-mRVM model achieves a faster training speed(14.23 s)and higher accuracy(98.21%)than other algorithms,and it can adapt to variable loads.

关键词： GIS IIMF analysis mechanical defect MKFmRVM RPSEMD

Nitrogen-doped carbon dots-modified Prussian blue with sandwichlike structure as a high-performance electrochromic material

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Nano Research 2024年第10期17卷 9174-9180页

作者： Yaqi Zhang Lide Li Siming Zhao yilin ding Nan Shen Yujie Sun Hao Wang Jingfa Li Rufan Zhang School of Chemistry and Materials Science School of Physics and Optoelectronic EngineeringNanjing University of Information Science and TechnologyNanjing 210044China Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China

Prussian blue(PB),as a promising inorganic electrochromic material(ECM),has been widely used in smart windows,displays,sensors,***,there are still many challenges for PB to achieve high electrochromic ***,we synthesized nitrogen-doped carbon dots-modified PB film(defined as PB@N-CDs)with a sandwich-like structure by a simple stepwise electrodeposition *** carbon dots show an obvious advantage in ultrafast electron transfer ability,which can reduce charge loss during the transfer process,improve the electrochemical activity on both sides of PB,and thus facilitate a rapid electrochromic ***,the surface of nitrogen-doped carbon dots contains multiple organic functional groups,which widen the movement path of K+ions under electrostatic ***,the PB@N-CDs film exhibits a short bleaching/coloring time(0.5/0.9 s)and a superior optical modulation range(78.6%).Particularly,the coloring efficiency has been significantly improved to 137.71 cm^(2)/C(at 700 nm).All of these results open up new avenues for developing highperformance PB-based ECMs and promoting their applications in corresponding electrochromic devices(ECDs)and smart windows.

关键词： electrochromic Prussian blue carbon dots nanostructure

基质金属蛋白酶2,9在胎膜早破产妇胎膜的表达变化

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实用妇产科杂志 2005年第3期21卷 174-177页

作者：丁依玲李婵娟中南大学湘雅二医院湖南长沙410011

目的:探讨基质金属蛋白酶- 2、- 9(MMP - 2、MMP - 9)在胎膜早破(PROM)发病机制中的作用。方法:选择早产PROM(PPROM)产妇1 1例、足月PROM产妇32例及足月临产产妇1 6例作为研究组,1 1例足月未临产产妇作为对照组;采用免疫组织化学法检... 详细信息

目的:探讨基质金属蛋白酶- 2、- 9(MMP - 2、MMP - 9)在胎膜早破(PROM)发病机制中的作用。方法:选择早产PROM(PPROM)产妇1 1例、足月PROM产妇32例及足月临产产妇1 6例作为研究组,1 1例足月未临产产妇作为对照组;采用免疫组织化学法检测胎膜宫颈部和宫体部中MMP 2及MMP - 9的分布与表达。结果:①各研究组宫颈部胎膜MMP 2的表达均高于同组宫体部(P 0 .0 5 ) ,但均高于足月临产组和对照组(P <0 .0 1 )。②MMP - 9在对照组中未见表达;MMP - 9在研究组胎膜宫颈部的表达均明显高于宫体部(P <0 .0 1 ) ,其中PPROM组宫颈部胎膜MMP 9表达的IH积分明显高于其余各组(P <0 .0 1 )。③胎膜宫颈部MMP - 2的表达与MMP 9的表达呈正相关(P =0 .0 0 0 )。结论:MMP -2和MMP - 9参与了产程中胎膜的破裂,在PROM的发病机制中起着重要的作用,其中MMP - 9在PPROM发病机制中的作用更为重要。

关键词：基质金属蛋白酶胎膜早破免疫组织化学

GIS设备典型机械缺陷的非线性振动行为表征参量分析和诊断模型研究

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中国电机工程学报 2022年第19期42卷 7248-7259页

作者：钟尧郝建丁屹林廖瑞金宫瑞磊徐惠输配电装备及系统安全与新技术国家重点实验室(重庆大学) 重庆市沙坪坝区400044 山东泰开高压开关有限公司山东省泰安市271025 国网电力科学研究院武汉南瑞有限责任公司湖北省武汉市430074

GIS设备机械振动缺陷是威胁其安全运行的关键因素,掌握其非线性行为是科学指导GIS设备缺陷检测及分析的根本。该文基于GIS设备平台开展3种典型机械振动缺陷的模拟,对比分析这3种缺陷在不同负载电流和严重程度联合作用下时频域非线性振... 详细信息

GIS设备机械振动缺陷是威胁其安全运行的关键因素,掌握其非线性行为是科学指导GIS设备缺陷检测及分析的根本。该文基于GIS设备平台开展3种典型机械振动缺陷的模拟,对比分析这3种缺陷在不同负载电流和严重程度联合作用下时频域非线性振动特性的演化规律,建立基于负载率分级的机械缺陷诊断模型。结果表明,GIS设备缺陷响应幅值比正常状态明显增大,且在高频特征频率点出现超谐波共振现象;不同类型机械缺陷的振动幅值、频响区间和特征频点差异显著;通过高斯阈值滤波、庞加莱映射、复合特征分析算法提取的重心频率、谐波畸变率、能量、混沌指数、峭度特征等参量可有效表征GIS设备机械振动缺陷的非线性振动行为;负载率分级诊断算法可以实现变负载下设备缺陷类型及其严重程度的准确识别。

关键词： GIS设备机械缺陷非线性特性超谐波响应表征参量

超高压GIL设备振动模态及振动特性分析研究

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电网技术 2023年第7期47卷 2810-2819页

作者：丁屹林郝建钟尧李滢宫瑞磊甲宗庆输配电装备及系统安全与新技术国家重点实验室(重庆大学) 重庆市沙坪坝区400044 山东泰开高压开关有限公司山东省泰安市271025

近几年超/特高压(gas insulated metal enclosed transmission line,GIL)设备机械缺陷频发,掌握该类设备的固有振动模态及异响振动特性是有效检测机械缺陷的关键。该文基于550 k V GIL大电流激励振动模拟平台开展了正常情况和母线底座... 详细信息

近几年超/特高压(gas insulated metal enclosed transmission line,GIL)设备机械缺陷频发,掌握该类设备的固有振动模态及异响振动特性是有效检测机械缺陷的关键。该文基于550 k V GIL大电流激励振动模拟平台开展了正常情况和母线底座松动缺陷时的振动特性对比分析,分析了设备结构模态特性、振动信号传播特性,以及负载电流大小和母线长度对设备机械振动行为的影响。结果表明:GIL设备固有模态振动频率主要集中在800~2700 Hz,存在母线底座松动缺陷时,GIL设备的振动频响函数曲线发生显著变化,固有振动频率和阻尼比均减小,径向上导杆振动最强;当负载电流在3000~5000 A时,大电流激励会引发设备非线性振动增强,更有助于检测机械缺陷;与正常情况相比,GIL设备存在母线底座松动机械缺陷时的振动加速度值和振动奇偶次响应比增加显著,且在1200~1800 Hz、2200~2600 Hz频带产生与固有模态相关的显著超谐波响应现象,此特征可为判断GIL设备母线底座松动机械缺陷提供有价值参考。

关键词： GIL设备振动特性机械缺陷超谐波响应

Breaking new ground in photocatalysis: lutetium texaphyrin as a trigger for pyroptosis through biomolecular photoredox reactions

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Science China Chemistry 2025年第1期68卷 1-2页

作者： Qihang ding Mengrong He Meijia Gu Department of Chemistry Korea University Department of Ultrasound Medicine Union Hospital Tongji Medical College Huazhong University of Science and Technology Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE) School of Pharmaceutical Sciences Wuhan University

Malignant neoplasms consistently pose a significant threat to global public health [1,2]. In recent years, immunotherapy has demonstrated remarkable clinical success; however, its efficacy is limited by the scarcity of immune cell infiltration within tumor microenvironments. Cell pyroptosis, a gasdermin-mediated process characterized by cellular swelling,rupture, and the release of intracellular contents such as IL-1β, IL-18, ATP, HMGB1, plays a crucial role in this context[3,4].

关键词：

基于嵌入分数维的树种算法的结构质量刚度识别

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振动与冲击 2018年第15期37卷 246-250页

作者：赵一霖刘济科丁政豪吕中荣中山大学工学院广州510006

采用改进的树种算法对结构进行质量和刚度的识别。基于加速度响应参数建立起目标函数,再利用融入分数维机制的树种算法(TSA)对于结构损伤进行反演。树种算法是一种新型的元启发式算法,具有结构简单,便于执行的特点。为了进一步改善算法... 详细信息

采用改进的树种算法对结构进行质量和刚度的识别。基于加速度响应参数建立起目标函数,再利用融入分数维机制的树种算法(TSA)对于结构损伤进行反演。树种算法是一种新型的元启发式算法,具有结构简单,便于执行的特点。为了进一步改善算法的优化能力,引入一个全新的搜索阶段‘树的搜索’,在该阶段中引入分数维模型来改进算法后期的收敛能力,进入树种阶段,通过两种新的搜索模式来平衡此阶段的局部搜索和全局搜索能力。采用桁架结构作为数值算例进而得到识别结果。最终表明,在仅知道有限的时域参数,该算法能够有效地识别损伤参数,优于其他进化算法并且对测量噪声不敏感。

关键词：树种算法(TSA) 刚度桁架结构分数维时域参数

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丁一林油畫作品選

当代美术家 1993年第2期 17-18页

作者：丁一林不详

原产地累积规则在RCEP中的运用及对中国的启示

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海关法评论

海关法评论 2023年第1期 169-191页

作者：殷敏丁伊琳上海政法学院绍兴市住房和城乡建设局信访法制处

《区域全面经济伙伴关系协定》(RCEP)的原产地累积规则不仅统一简化区域价值成分标准,扩大累积适用范围限制,降低原产资格获得门槛,而且规定了区域累积规则与关税减让安排的对接,开放度高,包容性强,成员国进出口贸易更为便利,尽享优惠... 详细信息

《区域全面经济伙伴关系协定》(RCEP)的原产地累积规则不仅统一简化区域价值成分标准,扩大累积适用范围限制,降低原产资格获得门槛,而且规定了区域累积规则与关税减让安排的对接,开放度高,包容性强,成员国进出口贸易更为便利,尽享优惠红利。通过对照《北美自由贸易协定》(NAFTA)、《美墨加三国协议》(USMCA)、《全面与进步跨太平洋伙伴关系协定》(CPTPP)、中国—东盟自由贸易协定(Free Trade Agreement,FTA)等原产地累积规则,总结出现存在区域价值成分(Regional Value Content,RVC)针对性、灵活性较弱等问题,对区内企业和海关的管理提出高标准、严要求,实操中存在困难,并对此次提出我国未来FTA谈判需要坚持的战略方向以及相应完善路径。

关键词： RCEP 区域累积规则区域价值成分标准关税减让

Industrial Control Anomaly Detection Based on Distributed Linear Deep Learning

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Computers, Materials & Continua 2025年第1期82卷 1129-1150页

作者： Shijie Tang Yong ding Huiyong Wang School of Computer Science and Information Security Guilin University of Electronic TechnologyGuilin541004China School of Electronic Engineering and Automation Guilin University of Electronic TechnologyGuilin541004China Guangxi Engineering Research Center of Industrial Internet Security and Blockchain Guilin University of Electronic TechnologyGuilin541004China Institute of Cyberspace Technology HKCT Institute for Higher EducationHong Kong999077China School of Mathematics&Computing Science Guilin University of Electronic TechnologyGuilin541004China

As more and more devices in Cyber-Physical Systems(CPS)are connected to the Internet,physical components such as programmable logic controller(PLC),sensors,and actuators are facing greater risks of network attacks,and fast and accurate attack detection techniques are *** key problem in distinguishing between normal and abnormal sequences is to model sequential changes in a large and diverse field of time *** address this issue,we propose an anomaly detection method based on distributed deep *** method uses a bilateral filtering algorithm for sequential sequences to remove noise in the time series,which can maintain the edge of discrete *** use a distributed linear deep learning model to establish a sequential prediction model and adjust the threshold for anomaly detection based on the prediction error of the validation *** method can not only detect abnormal attacks but also locate the sensors that cause *** conducted experiments on the Secure Water Treatment(SWAT)and Water Distribution(WADI)public *** experimental results show that our method is superior to the baseline method in identifying the types of attacks and detecting efficiency.

关键词： Anomaly detection CPS deep learning MLP(multi-layer perceptron)