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Constructing nitrided aluminum metal skeleton to improve the reversibility and cyclicity of Si film electrode

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Progress in Natural Science:Materials International 2023年第6期33卷 789-796页

作者： Jiali tong Tingfeng Guan Qilin tong Yan Cheng Zhaozhe yu Guilin University of Electronic Technology Guangxi Key Laboratory of Manufacturing Systems and Advanced Manufacturing Technology

Silicon is a promising anode material for lithium-ion batteries(LIBs) due to its high theoretical capacity, low discharge potential, environmental friendliness and cost-effectiveness. However, its low conductivity, high volume variation and poor cycling performance hamper its practical application. Herein, we prepare Si-Al(Al N)composite film anodes containing a nitrided aluminum metal conductive skeleton. The Al(Al N) creates a multiphase interface, buffers the volume expansion of the electrode, and also plays a role in conducting electricity and supporting the electrode structure. As a result, the Si-Al(Al N) electrode exhibits excellent performance with a high initial coulombic efficiency of 86 %, an outstanding cycling stability of roughly 1955 m Ah g-1after 200 cycles at420 m A g-1and retains 916 m Ah g-1after 300 cycles even at 4200 m A g-1(the capacity retention rate of 83 %).This work provides an effective method for adjusting anode performance with greater freedom.

关键词： Silicon film anode Nitrided aluminum metal conducting skeleton Cycling stability Lithium-ion battery

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激光技术在食品3D打印中的应用及发展趋势

食品科学 2025年第1期46卷 315-321页

作者：童强肖帅磊姜宇董秀萍庞桂兵大连工业大学机械工程与自动化学院辽宁大连116034 海洋食品加工与安全控制全国重点实验室国家海洋食品工程技术研究中心辽宁省海产品精深加工产业共性技术创新平台大连市中式预制食品技术创新中心辽宁大连116034 大连工业大学食品交叉科学研究院辽宁大连116034

随着食品3D打印技术的快速发展,各种辅助技术与其结合的创新应用越来越受关注。激光技术具有精确、高能量和快速实现材料成型等特点,与食品3D打印技术的个性化定制优势高度契合,两者的结合在食品加工领域展现出巨大的应用前景。本文在... 详细信息

随着食品3D打印技术的快速发展,各种辅助技术与其结合的创新应用越来越受关注。激光技术具有精确、高能量和快速实现材料成型等特点,与食品3D打印技术的个性化定制优势高度契合,两者的结合在食品加工领域展现出巨大的应用前景。本文在介绍食品3D打印技术和激光技术发展现状的基础上,着重阐述激光技术在食品3D打印中的应用,包括激光参数(如波长、功率、脉冲等)和工艺优势。同时,指出激光技术在食品3D打印应用中所面临的挑战,如激光照射下的食品安全、应用局限等问题。最后,对激光技术和食品3D打印技术深度融合的发展趋势进行总结与展望,指明未来发展方向,为激光技术在食品3D打印领域的创新应用提供理论参考。

关键词：食品3D打印增材制造激光技术食品加工

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Semantic segmentation-assisted instance feature fusion for multi-level 3D part instance segmentation

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Computational Visual Media 2023年第4期9卷 699-715页

作者： Chun-yu Sun Xin tong Yang Liu Institute for Advanced Study Tsinghua UniversityBeijing 100084China Microsoft Research Asia Beijing 100080China

Recognizing 3D part instances from a 3D point cloud is crucial for 3D structure and scene *** learning-based approaches use semantic segmentation and instance center prediction as training tasks and fail to further exploit the inherent relationship between shape semantics and part *** this paper,we present a new method for 3D part instance *** method exploits semantic segmentation to fuse nonlocal instance features,such as center prediction,and further enhances the fusion scheme in a multi-and cross-level *** also propose a semantic region center prediction task to train and leverage the prediction results to improve the clustering of instance *** method outperforms existing methods with a large-margin improvement in the PartNet *** also demonstrate that our feature fusion scheme can be applied to other existing methods to improve their performance in indoor scene instance segmentation tasks.

关键词： 3D part instance segmentation feature fusion 3D deep learning

Zeta-Functions of Curves of Genus 3 over Finite Fields

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Acta Mathematica Sinica,English Series 2010年第11期26卷 2223-2230页

作者： Fei yu Hong Xi tong Science and Technology on Communication Security Laboratory Chengdu 610041 P. R. China Department of Mathematics Shanghai University Shanghai 200444 P. R. China

In this paper, we determine zeta-functions of some curves of genus 3 over finite fields by gluing three elliptic curves based on Xing＇s research, and the examples show that there exists a maximal curve of genus 3 ove... 详细信息

关键词： Elliptic curves zeta-functions Jacobian varieties maximum curves

A Fiber Optic Sensor for the Simultaneous Measurement of Dual-parameter Based on Hydrogel-immobilized Enzyme Complex

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Journal of Wuhan University of Technology(Materials Science) 2023年第6期38卷 1311-1318页

作者： tong Yilin ZHANG yu HAN Xuecai yu ka. BAO Jiaqi Faculty of Information Science and Technology Wenhua CollegeWuhan 430074China Hubei Institute of Measurement and Testing Technology Wuhan 430223China

A novel fiber optic sensor based on hydrogel-immobilized enzyme complex was developed for the simultaneous measurement of dual-parameter,the leap from a single parameter detecting fiber optic sensor to a fiber optic sensor that can continuously detect two kinds of parameters was *** controlling the temperature from high to low,the function of fiber sulfide sensor and fiber DCP sensor can be realized,so as to realize the continuous detection of *** different variables affecting the sensor performance were evaluated and *** the optimal conditions,the response curves,linear detection ranges,detection limits and response times of the dual-parameter sensor for testing sulfide and DCP were obtained,*** sensor displays high selectivity,good repeatability and stability,which have good potentials in analyzing sulfide and DCP concentration of practical water samples.

关键词： hydrogel-immobilized enzyme complex dual-parameter simultaneous measurement fiber optic sensor

Multiplicity of Solutions for Quasilinear Elliptic Systems with Singularity

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Acta Mathematicae Applicatae Sinica 2015年第1期31卷 277-286页

作者： Juan LI yu-xia tong Department of Mathematics Ningbo University College of Science Heibei United University

In this paper, we study the existence of multiple solutions for the following quasilinear ellipticsystem：-△pu-μ1︳u︳p-1u/︳x︳=α1up（t）-2/︳x︳t＋β1︳v︳β2︳u︳β1-2u,x∈Ω,-△qu-μ2︳v︳q-2v/︳x︳q=α2 vq（s）-2/︳x︳sv＋β2︳u︳β1︳v︳β2-2v,x∈Ω u（x）=v（x）=0 x∈Ω Multiplicity of solutions for the quasilinear problem is obtained via variational method.

关键词： quasilinear elliptic system singularity critical growth

Chord length sampling correction analysis for dispersion fuel in Monte Carlo simulation

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Nuclear Science and Techniques 2024年第4期35卷 57-64页

作者： Zhao-yu Liang Ding She yu-tong Wen Lei Shi Institute of Nuclear and New Energy Technology(INET) Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of EducationTsinghua UniversityBeijing 100084China

Dispersion fuels,knowned for their excellent safety performance,are widely used in advanced reactors,such as hightemperature gas-cooled *** with deterministic methods,the Monte Carlo method has more advantages in the geometric modeling of stochastic *** explicit modeling method has high computational accuracy and high computational *** chord length sampling(CLS)method can improve computational efficiency by sampling the chord length during neutron transport using the matrix chord length?s probability density *** study shows that the excluded-volume effect in realistic stochastic media can introduce certain deviations into the CLS.A chord length correction approach is proposed to obtain the chord length correction factor by developing the Particle code based on equivalent transmission *** numerical analysis against reference solutions from explicit modeling in the RMC code,it was demonstrated that CLS with the proposed correction method provides good accuracy for addressing the excludedvolume effect in realistic infinite stochastic media.

关键词： Stochastic media Monte Carlo Chord length sampling Excluded-volume effect Chord length correction

Generation of Non-Gaussian Random Vibration Excitation Signal for Reliability Enhancement Test

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Chinese Journal of Aeronautics 2007年第3期20卷 236-239页

作者： yu Ying-yang JIANG tong-min Department of System Engineering of Engineering Technolog） Beijing University of Aeronautics and Astronautics Beijing 100083 China

During environment testing, the time histories of some dynamic environments follow non-Gaussian distribution. It is always assumed that the random vibration simulated follows Gaussian distribution, because the traditional digital random vibration control system can only supply the random vibration excitation signal of Gaussian. Yo simulate the real environment of product, a method is developed in this paper that can generate non-Gaussian random signal with specified power spectrum density （PSD）, skewness and kurtosis by shot noise. In this way, non-Gaussian random vibration can be produced on traditional electrodynamic shaker. It solves the problems of spectral valley and energy shortage in low frequency on omni-axis shaker. At last, the wavelet is used to analyze the non-Gaussian signal

关键词： non-Gaussian shot noise skewness kurtosis wavelet

Research Progress in Astragalus Membranaceus and Its Active Components on Immune Responses in Liver Fibrosis

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Chinese Journal of Integrative Medicine 2020年第10期26卷 794-800页

作者： LIU yu-tong LV Wen-liang Shaanxi University of Traditional Chinese Medicine Xianyang(712046)Shaanxi ProvinceChina Department of Infection Guang'anmen HospitalChina Academy of Chinese Medical SciencesBeijing(100053)China

The interaction between immune cells and hepatic stellate cells(HSCs)can modulate the development of hepatic *** can also regulate hepatic fibrosis and liver cirrhosis caused by excessive deposition of extracellular matrix(ECM).This article reviews the action mechanism of immune cells on liver fibrosis and the effect of Astragalus membranaeus and its active components on immune ***-depth study of interaction between immune cells and HSCs on the pathogenesis of liver fibrosis,and the regulatory effect of Astragalus membranaeus and its active components on immune mechanism will provide new insights in the treatment of liver fibrosis.

关键词： liver fibrosis immune cell Astragalus membranaceus review