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An Artificial Intelligence-Assisted Flexible and Wearable Mechanoluminescent Strain Sensor System

NANO-MICRO LETTERS 2025年第1期17卷 1-15页

作者： dong, yan An, Wenzheng Wang, Zihu Zhang, dongzhi China Univ Petr East China Coll Control Sci & Engn Qingdao 266580 Peoples R China

The sandwich-structured flexible mechanoluminescent sensor (SFLC) film shows great application potential as wireless wearable strain sensor and encryption ***-level integration of SFLC film with deep learning-based artificial intelligence enables fast and accurate interpretation of color data to strain values with automatic correction of errors caused by varying color *** smart glove wearable sensor based on the SFLC film combined with deep learning neural network enables fast and accurate hand gesture recognition. The complex wiring, bulky data collection devices, and difficulty in fast and on-site data interpretation significantly limit the practical application of flexible strain sensors as wearable devices. To tackle these challenges, this work develops an artificial intelligence-assisted, wireless, flexible, and wearable mechanoluminescent strain sensor system (AIFWMLS) by integration of deep learning neural network-based color data processing system (CDPS) with a sandwich-structured flexible mechanoluminescent sensor (SFLC) film. The SFLC film shows remarkable and robust mechanoluminescent performance with a simple structure for easy fabrication. The CDPS system can rapidly and accurately extract and interpret the color of the SFLC film to strain values with auto-correction of errors caused by the varying color temperature, which significantly improves the accuracy of the predicted strain. A smart glove mechanoluminescent sensor system demonstrates the great potential of the AIFWMLS system in human gesture recognition. Moreover, the versatile SFLC film can also serve as a encryption device. The integration of deep learning neural network-based artificial intelligence and SFLC film provides a promising strategy to break the "color to strain value" bottleneck that hinders the practical application of flexible colorimetric strain sensors, which could promote the development of wearable and flexible strain sensors from laboratory research to

关键词： Mechanoluminescent Strain sensor Flexible Deep learning Wireless

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基于知识图谱可视化的三山五园学术领域知识分析

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北京联合大学学报 2025年第1期39卷 53-61页

作者：洪文董焱北京联合大学图书馆北京100101 北京联合大学应用文理学院北京100191

三山五园学术研究是北京文化特征与文脉传承研究的重要学术领域,自三山五园入选国家文物保护利用示范区以来,其研究深度和广度都得到了显著提升。利用知识图谱,在深入分析与解读三山五园学术研究现状的基础上,系统梳理并展示了领域研究... 详细信息

三山五园学术研究是北京文化特征与文脉传承研究的重要学术领域,自三山五园入选国家文物保护利用示范区以来,其研究深度和广度都得到了显著提升。利用知识图谱,在深入分析与解读三山五园学术研究现状的基础上,系统梳理并展示了领域研究的整体框架和脉络,明确揭示了研究的主要方向、热点及发展趋势,评估了研究者在该领域的学术水平和影响力,为推动三山五园的保护和利用提供了有力支持,也为领域学术研究向更深层次发展提供了参考依据。

关键词：三山五园知识图谱领域知识可视化分析

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Ko⁃LLaMA:基于LLaMA的朝鲜语大语言模型

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外语学刊 2025年第1期 1-8页

作者：庞杰闫晓东赵小兵中央民族大学北京100081 国家语言资源监测与研究民族语言中心北京100081 民族语言智能与安全治理教育部重点实验室北京100081

在本文中,我们通过扩展LLaMA现有的词表,增加额外的20,000个朝鲜语Token,从而提高其对朝鲜语的编码和语义理解的能力;并且进一步使用朝鲜语数据进行继续预训练,使用朝鲜语指令微调数据集对模型进行SFT(Supervised Fine⁃Tuning),并分析... 详细信息

在本文中,我们通过扩展LLaMA现有的词表,增加额外的20,000个朝鲜语Token,从而提高其对朝鲜语的编码和语义理解的能力;并且进一步使用朝鲜语数据进行继续预训练,使用朝鲜语指令微调数据集对模型进行SFT(Supervised Fine⁃Tuning),并分析不同数据量对指令精调效果的影响,经过继续预训练和指令微调后的模型显著提高了理解和遵循朝鲜语指令的能力。实验结果表明,新提出的模型Ko⁃LLaMA显著提高了原版LLaMA在理解和生成朝鲜语内容方面的能力。此外,在朝鲜语文本分类数据集YNAT上对Ko⁃LLaMA与擅长少数民族语言的CINO模型及CINO的多种模型组合以及原版LLaMA和GPT⁃3.5进行了效果对比。结果表明,Ko⁃LLaMA的朝鲜语文本分类能力远超CINO和CINO的组合模型以及LLaMA和GPT⁃3.5等未经过朝鲜语语料进行词表扩充和继续预训练的大语言模型。

关键词：朝鲜语大语言模型词表扩充继续预训练指令微调

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Properties of off-axis hollow Gaussian–Schell model vortex beam propagating in turbulent atmosphere

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Chinese Physics B 2020年第6期29卷 230-236页

作者： yan-Song Song Ke-yan dong Shuai Chang yan dong Lei Zhang National and Local Joint Engineering Research Center of Space Optoelectronics Technology Changchun University of Science and TechnologyChangchun 130022China

The analytical expression of off-axis hollow Gaussian–Schell model vortex beam(HGSMVB)generated by anisotropic Gaussian–Schell model source is first *** evolution properties of off-axis HGSMVB propagating in turbulent atmosphere are *** results show that the off-axis HGSMVB with smaller coherence length or propagating in stronger turbulent atmosphere will evolve from dark hollow beam into Gaussian-like beam with a larger beam spot *** beams with different values of integer order N or the position for hollow and vortex factor R will have almost the same Gaussian-like spot distribution at the longer propagation distance.

关键词： vortex beam off-axis beam Gaussian-Schell model sources laser propagation intensity

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Impregnated Sulfur in Carbonized Nitrogen-containing Porous Organic Frameworks as Cathode with High Rate Performance and Long Cycle Life for Lithium-sulfur Batteries

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Chemical Research in Chinese Universities 2019年第4期35卷 654-661页

作者： dong yan BEN Teng Department of Chemistry Jilin University Changchun 130012P. R.China Department of Bioengineering Zunyi Medical University(Zhuhai Campus)Zhuhai 519041P.R.China

The undesirable cycling performance caused by soluble poly sulfides shuttling between anode and cathode has been considered as the main challenge that has hindered its practical applications for lithium-sulfiir(Li-S) batteries. To solve tliis issue effectively, a nitrogen-containing porous carbon, namely JUC-Z2-900,developed from a porous organic framework, namely JUC-Z2, bearing a high surface area(805 m^2/g),small pore size(0.5 mil) and nitrogen doping(2.15%, mass fraction), has been used as a host material for Li-S batteries. The micropores of JUC-Z2-900 can confine the smaller sulfur molecules S2-4, which can essentially alleviate the critical problem of poly sulfide ***, nitrogen-containing JUC-Z2-900 can promote chemical adsorption of sulfur. The above two factors can improve the electrochemical performance of Li-S batteries effectively. To compare the eftects of sulfur contents and melt-difiusion strategy in JUC-Z2-900/S composites, a series of JUC-Z2-900/S composites was synthesized and tlieir electrochemical perfbnnances were explored, indicating good rate performance and excellent cycling stability of the composites contributed by both appropriate mass percentage of sulfiir and its confinement in the micropores.

关键词： Li-S battery Nitrogen-containing porous carbon Porous organic framework

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Design and Implementation of a Driver's Eye State Recognition Algorithm Based on PERCLOS

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Chinese Journal of Electronics 2014年第4期23卷 669-672页

作者： PENG yan dong yan CHENG Du School of Management Capital Normal University Beijing Institute of Control Engineering

In order to improve the general detection accuracy of eye state, this paper puts forward an innovative method for judging human eye state based on PERCLOS. After pretreatment of the eye image, Hough transformation is used for ellipse detection and pupil position. The gray projection variance threshold analysis is then used to help make the final detection. Freeman chain and the Snake model algorithm are used for the corner detection and precise calculation of the height of an open eye. Thus the PERCLOS value and the eye state can be figured out. The performance of our eye state recognition algorithm is validated by more than 1000 images within product database. The statistics result shows that the fatigue detection accuracy rate can meet the need of usage in complex environment.

关键词： Eye state detection Freeman chain code Snake model Hough circle Ellipse detection

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Tactics to optimize conversion-type metal fluoride/sulfide/oxide cathodes toward advanced lithium metal batteries

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Nano Research 2023年第6期16卷 8173-8190页

作者： dong yan Hui Ying yang Ying Bai International Joint Laboratory of New Energy Materials and Devices of Henan Province School of Physics&ElectronicsHenan UniversityKaifeng 475004China Pillar of Engineering Product Development Singapore University of Technology and DesignSingapore 487372Singapore

Considering limited energy density of current lithium metal batteries(LMBs)due to low capacity of traditional intercalation-type cathodes,alternative high-energy cathodes are eagerly *** this regard,conversion-type metal fluoride/sulfide/oxide cathodes have emerged great attention owing to their high theoretical specific capacities,supplying outstanding energy density for advanced ***,their low ionic/electrical conductivities,huge volume changes,sluggish reaction kinetics,and severe side reactions result in quick capacity fading and poor rate capability of *** research efforts on the conversiontype cathodes have brought new insights,as well as effective approaches toward realizing their excellent electrochemical ***,the recent discoveries,challenges,and optimizing strategies including morphology regulation,phase structure engineering,surface coating,heterostructure construction,binder functionalization,and electrolyte design,are reviewed in ***,perspectives on the conversion-type metal fluoride/sulfide/oxide cathodes in LMBs are *** is believed that the conversion-type cathodes hold a promising future for the next-generation LMBs with high energy density.

关键词： conversion-type cathodes electrochemical performances optimizing strategies lithium metal batteries

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Androgen receptor variant-7： an important predictive biomarker in castrate resistant prostate cancer

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Asian Journal of Andrology 2015年第3期17卷 439-440页

作者： Oliver Sartor yan dong Department of Medicine and Urology Tulane Cancer Center Tulane University School of Medicine New Orleans LA USA Department of Structural and Cellular Biology Tulane Cancer Center Tulane University School of Medicine New Orleans LA USA National Engineering Laboratory for AIDS Vaccine College of Life Sciences Jilin University Changchun Jilin. China

The recent manuscript in New England Journal of Medicine by Antonarakis et al. has important clinical implications. This study evaluates mRNA expression of a particular androgen receptor splice variant-7 （AR-V7）, in circulating tumor cells （CTCs） from metastatic castrate-resistant prostate cancer （mCRPC） patients receiving enzalutamide or abiraterone. The findings were striking, none of the 18 patients with detectable AR-V7 in CTCs had prostate-specific antigen （PSA） responses.

关键词： @@

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Modified Two-Scale Model for Low-Grazing-Angle Scattering from Two-Dimensional Sea Surface

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Chinese Physics Letters 2002年第5期19卷 666-669页

作者： Zhang yan-dong and Wu Zhen-Sen School of Sciences Xidian University

A hybrid model for describing a fully developed two-dimensional sea surface is presented, which incorporates the sea spectrum into a fractal model, and an improved two-scale model is applied to calculate the scattering coefficient. In this model the slope distribution of the large-scale surface is obtained with a numerical method instead of being assumed, and the projecting and ray tracing methods are applied to obtain the shadow function for arbitrary incident and scattering angles. Moreover the effect of curvature of the large-scale undulating surface on the scattered wave is taken into account. Hence the precision of the results is greatly increased at low-grazing angles. Finally the amplitude and fractal characteristics of the scattered wave are analysed, which are of great significance for distinguishing and detecting targets on the sea.

关键词： Shadows Spectral analysis Numerical models

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Scattering from Rough Surfaces with Extended Self-Similarity

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Chinese Physics Letters 2002年第11期19卷 1613-1616页

作者： Zhang yan-dong and Wu Zhen-Sen School of Sciences Xidian University

An extended self-similarity (ESS) model is developed by extending the self-similarity condition in fractional Brownian motion (FBM), then the incremental Fourier synthesis algorithm is introduced to generate ESS rough surfaces, and an estimation algorithm is presented to extract the generalized multiscale Hurst parameter, which can also be modified to estimate the Hurst parameter for FBM more accurately. Finally, the scattering coefficient from ESS rough surfaces is calculated with the scalar Kirchhoff approximation, and its variation with the parameters in the ESS model is obtained. Compared with experimental measurements, it can be concluded that the ESS model provides a good tool to model natural rough surfaces.

关键词： Brownian movement

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