作者: 张海峰1;,赵晋忠1;,伊思静1;,卢士香2; (1山西农业大学基础部;2北京理工大学化学与化工学院)
出处: 原子与分子物理学报 2025 第42卷 第2期 P30-38
关键词: ZnO;Cu掺杂;缺陷共存;密度泛函理论;光催化
摘要: 采用密度泛函理论研究了Cu掺杂及缺陷共存对ZnO光催化性能的影响.计算时考虑了富O和贫O两种掺杂条件.研究结果表明富O条件有利于Cu的掺杂,贫O条件则产生抑制作用.当Cu掺杂浓度较低时,不论在何种掺杂条件下,Cu的主要掺杂方式均为CuZn型.当Cu掺杂浓度较高时,富O条件下以C ...
作者: 王旭1;,王海美2;,陈松浩2;,冯天笑3;,卜寒梅1;,朱立国1,4;,陈端端2;,魏戌1,4; (1中国中医科学院望京医院;2北京理工大学医学技术学院;3北京中医药大学;4中医正骨技术北京市重点实验室)
出处: 中国组织工程研究 2025 第3期 P441-447
关键词: 神经根型颈椎病;有限元分析;颈椎旋提手法;生物力学;数字化
摘要: 背景:颈椎旋提手法治疗神经根型颈椎病的临床疗效确切,安全性较好,已广泛应用于临床中,但其对各节段颈椎椎体、椎间盘的生物力学及椎间孔面积的影响尚未系统阐明。 目的:基于三维有限元分析技术开展相关研究,为旋提手法治疗神经根型颈椎病的效应机制提供数字化证据。 方法:选择1例颈背部无异常疾患的志愿者,将其 ...
作者: Xiaoyu Zhang,Huizhong Zeng,Shaohui Zhang,Yan Zhang,Mi Xiao,Liping Liu,Hao Zhou,Hongyou Chai,Liang Gao (Beijing Key Laboratory of Lightweight Multi-Functional Composite Materials and Structures,Beijing Institute of Technology;Beijing Key Laboratory of Intelligent Space Robotic Systems Technology and Applications,Beijing Institute of Spacecraft,System Engineering,China Academy of Space Technology;Key Laboratory of Metallurgical Equipment and Control Technology,Ministry of Education,Wuhan University of Science and Technology;State Key Laboratory of Digital Manufacturing Equipment and Technology,Huazhong University of Science and Technology)
出处: Computer Modeling In Engineering&Sciences 2024 第1期
关键词: Thin-walled structure;lattice infill;supporting component;selective laser melting;satellite
摘要: Lightweight thin-walled structures with lattice infill are widely desired in satellite for their high stiffness-to-weight ratio and superior buckling ...
作者: Xin Zhao,Kaiyi Yin (Department of Mechanics,Beijing Institute of Technology)
出处: Theoretical & Applied Mechanics Letters 2024 第14卷 第3期 P162-165
关键词: Artificial;neural;network;Back;propagation;method;Burgers;turbulence;Large;eddy;simulation;Sub-grid;scale;model
摘要: The present study proposes a sub-grid scale model for the one-dimensional Burgers turbulence based on the neural network and deep learning method. The ...
作者: Zhe ZHANG,Zijing ZHAO,Xiangyang LIU,Ningfei WANG (School of Aerospace Engineering, Beijing Institute of Technology)
出处: Chinese Journal of Aeronautics 2024 第6期
关键词: Electric propulsion;Lifetime test;Micro-Cathode-Arc Thruster(μCAT);Conductive film;Discharge characteristics;Plasma parameters
摘要: Ground lifetime test is the most crucial experiment to assess the performance,reliability,and flight qualification of electric propulsion, and it can ...
作者: Zhongming Chen,Qilin Hua,Guozhen Shen (School of Integrated Circuits and Electronics,Beijing Institute of Technology;Institute of Flexible Electronics,Beijing Institute of Technology)
出处: Journal of Semiconductors 2024 第8期
作者: Hanyu WANG,Qiang SHEN,Zilong DENG,Xinyi CAO,Xiaokang Wang (School of Mechatronical Engineering, Beijing Institute of Technology;Beijing Institute of Technology Chongqing Innovation Center)
出处: Chinese Journal of Aeronautics 2024 第6期
关键词: Satellite imagery;Unmanned Aerial Vehicle(UAV);Deep neural networks;Vision navigation;von Mises-Fisher distribution
摘要: Obtaining absolute pose based on pre-loaded satellite images is one of the important means of autonomous navigation for small Unmanned Aerial Vehicles ...
作者: Kangdi Guan,Di Chen,Qilin Hua,Guozhen Shen (School of Integrated Circuits and Electronics, Beijing Institute of Technology;Institute of Flexible Electronics, Beijing Institute of Technology)
出处: Journal of Semiconductors 2024 第7期
作者: Sichen CHEN,Zhiqiang LIANG,Yuchao DU,Zirui GAO,Haoran ZHENG,Zhibing LIU,Tianyang QIU,Xibin WANG (School of Mechanical Engineering, Beijing Institute of Technology;Beijing Institute of Technology Chongqing Innovation Center)
出处: Chinese Journal of Aeronautics 2024 第6期
关键词: Robotic milling;Chatter detection;Variational mode decomposition;Information fusion and compression;Chatter featur
摘要: Undesirable self-excited chatter has always been a typical issue restricting the improvement of robotic milling quality and efficiency.Sensitive chatt ...
作者: Chenggang SHAN1,2;,Runze GAO2;,Zhen YANG1;,Wei ZHANG1;,Yuanqing XIA2; (1School of Artificial Intelligence, Zaozhuang University;2School of Automation, Beijing Institute of Technology)
出处: Science China(Information Sciences) 2024 第67卷 第8期 P172-189
摘要: As an extension of networked control systems, cloud control systems(CCSs) have emerged as a new control paradigm to improve the service quality of eme ...
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