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Nano-Micro Letters 2025年第1期17卷 262-280页

作者： Dongxiao Li Hong Zhou Zhihao ren Cheng xu Chengkuo Lee Department of Electrical and Computer Engineering National University of SingaporeSingapore 117583Singapore Center for Intelligent Sensors and MEMS(CISM) National University of SingaporeSingapore 117608Singapore

Plasmonic nanoantennas provide unique opportunities for precise control of light–matter coupling in surface-enhanced infrared absorption(SEIRA)spectroscopy,but most of the resonant systems realized so far suffer from the obstacles of low sensitivity,narrow bandwidth,and asymmetric Fano resonance ***,we demonstrated an overcoupled resonator with a high plasmon-molecule coupling coefficient(μ)(OC-Hμresonator)by precisely controlling the radiation loss channel,the resonator-oscillator coupling channel,and the frequency detuning *** observed a strong dependence of the sensing performance on the coupling state,and demonstrated that OC-Hμresonator has excellent sensing properties of ultra-sensitive(7.25%nm^(−1)),ultra-broadband(3–10μm),and immune asymmetric Fano *** characteristics represent a breakthrough in SEIRA technology and lay the foundation for specific recognition of biomolecules,trace detection,and protein secondary structure analysis using a single array(array size is 100×100μm^(2)).In addition,with the assistance of machine learning,mixture classification,concentration prediction and spectral reconstruction were achieved with the highest accuracy of 100%.Finally,we demonstrated the potential of OC-Hμresonator for SARS-CoV-2 *** findings will promote the wider application of SEIRA technology,while providing new ideas for other enhanced spectroscopy technologies,quantum photonics and studying light–matter interactions.

关键词： Plasmonic nanoantennas Light-matter interaction Surface-enhanced infrared absorption Overcoupled Biosensing

Bearing Fault Diagnosis Based on the Markov Transition Field and SE-IShufflenetV2 Model

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Structural Durability & Health Monitoring 2025年第1期19卷 125-144页

作者： Chaozhi Cai Tiexin xu Jianhua ren Yingfang xue School of Mechanical and Equipment Engineering Hebei University of EngineeringHandan056038China

A bearing fault diagnosis method based on the Markov transitionﬁeld(MTF)and SEnet(SE)-IShufﬂenetV2 model is proposed in this paper due to the problems of complex working conditions,low fault diagnosis accuracy,and poor generalization of rolling ***,MTF is used to encode one-dimensional time series vibration sig-nals and convert them into time-dependent and unique two-dimensional feature ***,the generated two-dimensional dataset is fed into the SE-IShufﬂenetV2 model for training to achieve fault feature extraction and classiﬁ*** paper selects the bearing fault datasets from Case Western Reserve University and Paderborn University to experimentally verify the effectiveness and superiority of the proposed *** generalization performance of the proposed method is tested under the variable load condition and different signal-to-noise ratios(SNRs).The experimental results show that the average accuracy of the proposed method under different working conditions is 99.2%without adding *** accuracy under different working conditions from 0 to 1 HP is 100%.When the SNR is 0 dB,the average accuracy of the proposed method can still reach 98.7%under varying working ***,the bearing fault diagnosis method proposed in this paper is characterized by high accuracy,strong anti-noise ability,and ***,the proposed method can also overcome the inﬂuence of variable working conditions on diagnosis accuracy,providing method support for the accurate diagnosis of bearing faults under strong noise and variable working conditions.

关键词： Bearings Markov transitionﬁeld SE-IShufﬂenetV2

Morphological Mechanism and Experimental Verification of Self-healing of Basalt-fiber Modified Water-soaked Asphalt

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 171-186页

作者： XIAO Minmin DONG Jinyong LI Chunyan GUO xu ren Jianguo School of Urban Construction and Safety Engineering Shanghai Institute of TechnologyShanghai 201418China

This study investigates the mechanism of action of representative molecules of basalt fibers on the healing of water-soaked *** parameters,morphological characteristics,interfacial healing energy,and interfacial healing strength were analyzed using molecular dynamics and macroscopic tests under different time,temperature,and water conditions to evaluate the specific states and critical conditions involved in *** results indicate that basalt-fiber molecules can induce rearrangement and a combination of water-soaked asphalt at the healing *** groups with different bonding states increase the interfacial adsorption capacity of water-soaked *** interaction between basalt fiber molecules and water molecules leads to a"hoop"phenomenon,while aromatics-2 molecules exhibit a"ring band aggregation"*** former reduces the miscibility of water and asphalt molecules,while the latter causes slow diffusion of the ***,a micro-macro dual-scale comparison of interfacial healing strength was conducted at temperatures of 297.15 and 312.15 K to identify the strength transition point and critical temperature of 299.4 K during the self-healing process of basalt-fiber modified water-soaked asphalt.

关键词： water-soaked asphalt basalt-fibers self-healing properties moisture status molecular characterization

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云环境中考虑隐私保护的人脸图像识别

沈阳工业大学学报 2018年第2期40卷 203-207页

作者：侯小毛徐仁伯湖南信息学院电子信息学院长沙410151 中南大学软件学院长沙410012 中南大学物理与电子学院长沙410012

针对目前使用计算机进行人脸识别往往效率较差,且未考虑到隐私保护等问题,提出一种新的云环境中考虑隐私保护的人脸图像识别方法.对人脸图像进行简化处理以保护主要信息,并建立人脸图像主成分分析(PCA)数学模型,采用局部二值模式(LBP)... 详细信息

针对目前使用计算机进行人脸识别往往效率较差,且未考虑到隐私保护等问题,提出一种新的云环境中考虑隐私保护的人脸图像识别方法.对人脸图像进行简化处理以保护主要信息,并建立人脸图像主成分分析(PCA)数学模型,采用局部二值模式(LBP)方法获取人脸图像纹理特征,采用保局投影(LPP)方法选择人脸特征,并选取最常见的分数法对选择后的特征进行稳定性度量,引入深度网络法进行人脸图像的识别.结果表明,所提出的改进方法在保证人员隐私的基础上,具有较高的识别精度与识别效率.

关键词：云环境隐私保护人脸图像纹理特征分数法识别方法 PCA数学模型 LBP方法深度网络法

Effect of Substrate Temperature on Optical Characteristics of Silver Island Films for Harvesting Solar Energy

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Semiconductor Photonics and Technology 2009年第4期15卷 203-208,246页

作者： ZHOU Zi-you WANG Ji-fei LIU Ju YANG Hai-yan xu ren-bo LI Hong-jian College of Physics Science and Technology School of Materials Science and Engineering Central South University Changsha 410083 CHN

Due to their particular optical characteristics,metallic island films have the potential to significantly increase the energy conversion efficiency of solar *** experimentally and theoretically investigated the effect of substrate temperature on the morphologies and optical properties of the silver island *** low temperature,below 300 ℃,as the substrate temperature *** to the films prepared at room temperature,the sizes of nanoparticles decrease and the Absorption peaks shift to shorter wavelength accompanied by an increase density resulting in a 150% Absorption *** the substrate temperature goes up to 300 ℃,nanoparticles with larger in-plan(X-Y)dimensions are formed,the number density decreases and the Absorption peaks redshift but the Absorption efficiency is still 10% *** simulation reveals that these behaviors are a consequence of morphologies transformation.

关键词： Ag island films absorption spectrum substrate temperature

Targets capture by distributed active swarms via bio-inspired reinforcement learning

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 210-221页

作者： Kun xu Yue Li Jun Sun Shuyuan Du Xinpeng Di Yuguang Yang bo Li Institute of Biomechanics and Medical Engineering Applied Mechanics Laboratory Department of Engineering MechanicsTsinghua University Institute of Nuclear and New Energy Technology Tsinghua University Shanghai Aerospace Control Technology Institute Shanghai Key Laboratory of Aerospace Intelligent Control Technology College of Automation Engineering Nanjing University of Aeronautics and Astronautics

Natural swarms arranged from cells to herds are usually decentralized but display intriguing collective intelligence in coordinating individuals across large scales to efficiently achieve their common goals. Learning from nature may provide new strategies for controlling collective dynamics of synthetic swarms to accomplish specific functions. Here, we present a bioinspired computational framework that steers distributed active swarms to collectively capture and merge targets via reinforcement learning. We exploit collective milling structures of natural herds to cage the targets, and adopt a switching control policy inspired by sperms' chiral dynamics to optimize the trajectories of individuals, through which the active swarms can selforganize to enclose single or multiple distant targets in a dynamical, adaptive and scalable manner. There exists a critical swarm size, beyond which the excessive competition between agents would generate large mechanical forces, leading to capture instability but enabling the transition from short-distance to long-distance merging capture of multiple targets. This work provides physical insights into distributed active swarms and could offer a multilevel, decentralized strategy toward controlling swarm robotics in wide applications such as bio-medical devices, machine immunity, and target clearance.

关键词： swarm intelligence robotics multi-tasks artificial intelligence bionics

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电力系统运行检修技术管理分析

电力系统装备 2022年第6期 136-138页

作者：徐仁博华能国际电力股份有限公司大连电厂辽宁大连116023

随着我国经济发展速度的加快,对电力系统投入力度加大,电力系统设备设施已经相对完善,电力行业获得了长足发展。但是当前处于新的经济发展时期,用电需求进一步加大,也对电力行业提出了更高的要求。因此,相关行业有必要加强对电力系统运... 详细信息

随着我国经济发展速度的加快,对电力系统投入力度加大,电力系统设备设施已经相对完善,电力行业获得了长足发展。但是当前处于新的经济发展时期,用电需求进一步加大,也对电力行业提出了更高的要求。因此,相关行业有必要加强对电力系统运行设备等加强维护管理,科学有效地检修技术也就至关重要。基于此,文章分析了电力系统运行检修管理中存在的主要问题,并针对相关检修技术进行了详细探讨。

关键词：电力系统运行检修技术管理

含苄基的七元氮桥新烟碱化合物的设计、合成与杀虫活性测试

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农药 2016年第10期55卷 715-720页

作者：张凡徐仁博李忠徐晓勇华东理工大学药学院上海化学生物重点实验室上海200237 中国上海生物制造技术协同创新中心上海200237

[目的]通过在新型氮桥环新烟碱类化合物的结构中引入一个柔性连接臂(CH_2),研发新化学结构的新烟碱杀虫剂,以解决新烟碱杀虫剂抗性不断增加和对鳞翅目害虫的杀虫活性较低等问题。[方法]设计并化学合成一系列9个含有苄基的新型氮桥环新... 详细信息

[目的]通过在新型氮桥环新烟碱类化合物的结构中引入一个柔性连接臂(CH_2),研发新化学结构的新烟碱杀虫剂,以解决新烟碱杀虫剂抗性不断增加和对鳞翅目害虫的杀虫活性较低等问题。[方法]设计并化学合成一系列9个含有苄基的新型氮桥环新烟碱类化合物,并测试各个化合物的杀虫活性。[结果]总体而言,所合成化合物的杀虫活性均低于本课题组已报道过的苯胺系列氮桥环化合物。[结论]在新型氮桥环新烟碱类化合物的结构中引入柔性连接(CH_2)未能达到提高生物活性的目的。

关键词：七元氮桥新烟碱杀虫剂烟碱乙酰胆碱受体柔性连接臂曼尼希反应

TiNi形状记忆合金低速冲击响应行为的研究

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中国石油大学学报（自然科学版） 2006年第1期30卷 98-101页

作者：许仁波崔立山郑雁军陈洪玲中国石油大学机电工程学院北京102249

利用单摆冲击试验设备,对TiNi合金不同冲击能量及温度条件下的冲击响应行为进行了研究。冲击过程中的接触载荷由压力传感器及数字信号处理系统实时测量。根据接触载荷数据,可计算得到接触载荷与样品表面变形的关系。结果表明,同一冲击... 详细信息

利用单摆冲击试验设备,对TiNi合金不同冲击能量及温度条件下的冲击响应行为进行了研究。冲击过程中的接触载荷由压力传感器及数字信号处理系统实时测量。根据接触载荷数据,可计算得到接触载荷与样品表面变形的关系。结果表明,同一冲击高度时,随温度升高马氏体TiNi合金的最大接触载荷增加,而接触时间降低;母相TiNi合金的最大接触载荷随冲击高度的增加会出现载荷平台段即伪弹变形段,处于平台段时母相TiNi合金吸收冲击能量,且不产生不可恢复的塑性变形,最大接触载荷降低,从而可减轻材料损伤。

关键词： TiNi合金冲击响应行为接触载荷冲击能量