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: Pan WANG1;,Xiangcheng HAN1,2;,Weibin WEN1;,Baolin WANG3;,Jun LIANG1,2; (1School of Civil Engineering, Central South University;2Institute of Advanced Structure Technology, Beijing Institute of Technology;3School of Science, Harbin Institute of Technology)
出处: Applied Mathematics and Mechanics(English Edition) 2024 第45卷 第1期 P137-154
摘要: The accurate and efficient analysis of anisotropic heat conduction problems in complex composites is crucial for structural design and performance eva ...
作者: ZHANG Yijia,FEI Qing,YAO Xiaolan,SUN Jian,ZHANG Yanjun,CHEN Zhen (School of Automation,Beijing Institute of Technology)
出处: Journal of Systems Science & Complexity 2024 第37卷 第2期 P581-608
摘要: This paper presents a new study on modeling and optimization of trajectory and posture for the super-giant(SG) slalom of alpine skiing. It is the firs ...
作者: Yu LUa1;,Baozeng YUE1;,Bailong HAO1;,Bole MA1;,Feng LIU1;,Yuanyuan CHANG2; (1School of Aerospace Engineering, Beijing Institute of Technology;2Beijing Institute of Astronautical Systems Engineering)
出处: Chinese Journal of Aeronautics 2024 第37卷 第2期 P360-370
关键词: Moving Pulsating Ball Model(MPBM);Dynamics of stage separa-tion;Large amplitude sloshing;Recoverable liquid launch vehicle;Flight dynamics
摘要: In the process of stage separation of recoverable liquid launch vehicles,because of the large amount of residual fuel in the storage tanks,the influen ...
作者: Xiao QU,Liunan LI,Yingjie ZHANG,Xingen LU,Junqiang ZHU,Yanfeng ZHANG (School of Mechanical Engineering, Beijing Institute of Technology;Key Laboratory of Light-Duty Gas-Turbine,Institute of Engineering Thermophysics,Chinese Academy of Sciences;School of Aeronautics and Astronautics, University of Chinese Academy of Sciences)
出处: Chinese Journal of Aeronautics 2024 第3期
关键词: Low-pressure turbine;Secondary flow;Flow control;Boundary-layer suction;Incoming wake
摘要: The design of high-lift Low-Pressure Turbines (LPTs) causes the separation of the boundary layer on the suction side of the blade and leads to a stron ...
作者: ZHAO Zhixin1,2;,CHEN Jie1,2;,XIN Bin3,4;,LI Li1,2;,JIAO Keming1,2;,ZHENG Yifan1,2; (1School of Electronics and Information Engineering,Tongji University;2Shanghai Institute of Intelligent Science and Technology,Tongji University;3School of Automation,Beijing Institute of Technology;4National Key Laboratory of Autonomous Intelligent Unmanned Systems)
出处: Journal of Systems Science & Complexity 2024 第37卷 第1期 P369-388
摘要: The multi-UAV adversary swarm defense(MUASD) problem is to defend a static base against an adversary UAV swarm by a defensive UAV swarm. Decomposing t ...
作者: Yanda WANG1;,Yanping LIAN2;,Zhidong WANG2;,Chunpeng WANG2;,Daining FANG1,2; (1State Key Laboratory for Turbulence and Complex Systems & Center for Applied Physics and Technology, College of Engineering, Peking University;2Institute of Advanced Structure Technology, Beijing Institute of Technology)
出处: Applied Mathematics and Mechanics(English Edition) 2024 第45卷 第2期 P217-238
摘要: Lattice structures can be designed to achieve unique mechanical properties and have attracted increasing attention for applications in high-end indust ...
作者: Chenxi Ding1;,Renshu Yang1,2;,Xiao Guo3;,Zhe Sui2;,Chenglong Xiao4;,Liyun Yang2; (1School of Civil and Resource Engineering,University of Science and Technology Beijing;2School of Mechanics and Civil Engineering,China University of Mining and Technology (Beijing);3School of Mathematics and Physics,University of Science and Technology Beijing;4State Key Lab of Explosion Science and Technology,Beijing Institute of Technology)
出处: International Journal of Minerals,Metallurgy and Materials 2024 第31卷 第3期 P443-451
摘要: To study the effects of the initiation position on the damage and fracture characteristics of linear-charge blasting, blasting model experiments were ...
作者: 李挺1;,金福生1;,李荣华1;,王国仁1;,段焕中2;,路彦雄2; (1北京理工大学计算机学院;2腾讯科技(北京)有限公司)
出处: 计算机研究与发展 2024 第61卷 第4期 P877-888
关键词: 同质超图;超图神经网络;个性化推荐;圈层内容推荐;推荐算法
摘要: 图神经网络和超图神经网络(hypergraph neural network, HGNN)已经成为协同过滤推荐领域的研究热点.然而实际场景中用户和项目的交互非常复杂,导致用户之间存在高阶的复杂关系,而普通图结构只能表达简单的成对关系,对网络结构的堆叠容易导致中间层表征的过度平滑,在稀疏场景下的用户建 ...
作者: 李戈,邢颖,刘芳,刘辉,刘璘 (北京大学;北京邮电大学;北京航空航天大学;北京理工大学;清华大学)
出处: 计算机研究与发展 2024 第61卷 第2期 P289-290
关键词: 软件工程领域;自动化软件;软件开发效率;软件开发过程;测试用例;人工智能;开发流程;部署方式
摘要: 在当前的科技发展背景下,生成式人工智能(artificial intelligence,AI)已经开始为软件工程领域赋能,并衍生为一种新的生产力.生成式AI将大大加速软件开发过程,减少测试的时间和人工成本,提高测试的覆盖率、准确性和可靠性,增强代码的质量和可维护性,同时帮助软件管理人员更好地进行项目 ...
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