检索结果-内蒙古大学图书馆

International Conference on Artificial Intelligence and Autonomous Transportation, AIAT 2024

作者： Li, Lei Chen, Zhifa Wang, Jian Zhou, Bin Yu, Guizhen Chen, Xiaoxuan Key Laboratory of Autonomous Transportation Technology for Special Vehicles Ministry of Industry and Information Technology School of Transportation Science and Engineering Beihang University Beijing100191 China

ISBN: (纸本)9789819639564

Recently, the application of autonomous driving in open-pit mining has garnered increasing attention for achieving safe and efficient mineral transportation. Compared to urban structured roads, unstructured roads in mining sites have uneven boundaries and lack clearly defined lane markings. This leads to a lack of sufficient constraint information for predicting the trajectories of other human-driven vehicles, resulting in higher uncertainty in trajectory prediction problems. A method is proposed to predict multiple possible trajectories and their probabilities of the target vehicle. The surrounding environment and historical trajectories of the target vehicle are encoded as a rasterized image, which is used as input to our deep convolutional network to predict the target vehicle’s multiple possible trajectories. The method underwent offline testing on a dataset specifically designed for autonomous driving scenarios in open-pit mining and was compared and evaluated against physics-based method. The open-source code and data are available at https://***/LLsxyc/mine_motion_prediction. © Beijing Paike Culture Commu. Co., Ltd. 2025.

关键词： Open pit mining

来源：评论

学校读者我要写书评

暂无评论

Optimization Design of Node Seismometer Data Storage Based on STM32 11

Optimization Design of Node Seismometer Data Storage Based o...

引用

11th International Conference on Environmental and engineering Geophysics, ICEEG 2024

作者： Yang, Lan Shen, Tong Tan, Mingjie Ruan, Bo Leng, Yangchun Country School of Information and Engineering Southwest University of Science and Technology Mianyang China Country Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory Southwest University of Science and Technology Mianyang China

The application of high-resolution analog-to-digital conversion devices in wireless seismic data acquisition equipment causes massive invalid noise and seismic signals to be generated during long-term seismic acquisition, and the subsequent processing of massive data will occupy a lot of system resources. To address the above issues, we employ the STM32F4 as the core to integrate an improved environmental dynamic threshold P-wave picking algorithm for continuous vibration data acquisition. During data storage, only the relevant vibration signals are preserved to minimize the storage of irrelevant data and enhance work efficiency. The research results indicate that embedding a vibration identification algorithm inside the microcontroller can quickly and effectively identify seismic data, filter out invalid noise signals, reduce data volume, and improve work efficiency. © 2024 Institute of Physics Publishing. All rights reserved.

关键词： Analog to digital conversion

来源：评论

学校读者我要写书评

暂无评论

Back-stepping Recursive Decentralized Finite-time Trajectory Tracking Control for Space Parallel Robots with a Bricard Mechanism

引用

IEEE Transactions on Aerospace and Electronic systems 2025年第3期61卷 7512-7526页

作者： Guo, Chuandong Liu, Fei Hu, Quan Sichuan University of Science and Engineering School of Automation and Information Engineering Yibin644005 China Artificial Intelligence Key Laboratory of Sichuan Province Yibin644005 China Beijing Institute of Aerospace Systems Engineering Beijing100076 China Beijing Institute of Technology Beijing100081 China

A space parallel robot with a Bricard mechanism (SPRBM) is an mechanism for space debris removal. In contrast to traditional serial manipulators, the SPRBM can capture targets of arbitrary shapes, provided the target's envelope falls within the capture range of the SPRBM's net port, with no stringent requirements on the capture point's location. Additionally, owing to the properties of parallel mechanisms, the SPRBM can capture targets possessing greater motion energy than traditional serial manipulators. However, the SPRBM has complicated dynamics, posing significant challenges for dynamic modeling and trajectory tracking control. In this study, we introduce a back-stepping recursive decentralized finite-time control scheme for the trajectory tracking control of the SPRBM. First, the equation of motion for the SPRBM was derived using a recursive algorithm. Then, the back-stepping recursive decentralized finite-time control was formulated, assuming that communication between the decentralized controllers was feasible. The communicated information comprised the relative motion states at the joints, the geometry and mass parameters, and the control torques. Finally, numerical experiments were conducted to validate the effectiveness of the proposed control scheme. © 2025 IEEE.

关键词： Space debris

来源：评论

学校读者我要写书评

暂无评论

Strong spin frustration and magnetism in kagoméantiferromagnets LnCu_(3)(OH)_(6)Br_(3)(Ln=Nd,Sm,and Eu)

引用

Chinese Physics B 2023年第4期32卷 103-108页

作者：钟金群余振伟岳小宇王义炎梁慧孙燕吴丹丹丁宗玲孙进孙学峰李秋菊 School of Materials Science and Engineering Anhui UniversityHefei 230601China Institute of Physical Science and Information Technology Anhui UniversityHefei 230601China Department of Physics and Key Laboratory of Strongly-Coupled Quantum Matter Physics(CAS)University of Science and Technology of ChinaHefei 230026China School of Physics and Optoelectronic engineering Anhui UniversityHefei 230601China School of Optical and Electronic Information Suzhou City UniversitySuzhou 215104China

To study the effects of lanthanide ions on the geometrically frustrated antiferromagnets and their magnetic properties,we grew high-quality single crystals of LnCu_(3)(OH)_(6)Br_(3)(Ln=Nd,Sm,and Eu)by hydrothermal method and studied their crystal structures and magnetic *** refinements of the crystal structure referred to the powder x-ray diffraction data show that LnCu_(3)(OH)_(6)Br_(3)adopt a Kapellasite-type layer structure,which is isostructural to their chlorine *** susceptibilities demonstrate that LnCu_(3)(OH)_(6)Br_(3)have strong antiferromagnetic coupling and a pronounced magnetic frustration *** measurements indicate canted antiferromagnetic ordering of Cu^(2+)ions around 16 K within the kagoméplane and weak ferromagnetic ***,shoulder-like anomalies in specific heat around 16 K could be a signature of emergent of magnetic *** low-temperature negative magnetization and specific heat of LnCu_(3)(OH)_(6)Br_(3)(Ln=Nd,Sm,and Eu)indicate that Ln^(3+)ions induce more exotic magnetic ground state properties.

关键词： kagomélattice antiferromagnet single crystal spin frustration

来源：评论

学校读者我要写书评

暂无评论

Enhancing crystal integrity and structural rigidity of CsPbBr_(3) nanoplatelets to achieve a narrow colorsaturated blue emission

引用

Light(science & Applications) 2024年第5期13卷 985-997页

作者： Qianqian Huang Wenxu Yin Bo Gao Qingsen Zeng Dong Yao Hao Zhang Yinghe Zhao Weijia Zheng Jiaqi Zhang Xuyong Yang Xiaoyu Zhang Andrey L.Rogach Key Laboratory of Automobile Materials MOE School of Materials Science&Engineeringand Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy MaterialsJilin UniversityChangchunChina. State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchunChina. State Key Laboratory of Materials Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhanHubeiChina. Department of Chemistry University of VictoriaVictoriaBCCanada. Key Laboratory of Advanced Display and System Applications of Ministry of Education Shanghai UniversityShanghaiChina. Department of Materials Science and Engineering and Centre for Functional Photonics(CFP)City University of Hong KongHong Kong S.A.RChina

Quantum-confined CsPbBr_(3) perovskites are promising blue emitters for ultra-high-definition displays,but their soft lattice caused by highly ionic nature has a limited ***,we endow CsPbBr_(3) nanoplatelets(NPLs)with atomic crystal-like structural rigidity through proper surface engineering,by using strongly bound N-dodecylbenzene sulfonic acid(DBSA).A stable,rigid crystal structure,as well as uniform,orderly-arranged surface of these NPLs is achieved by optimizing intermediate reaction stage,by switching from molecular clusters to mono-octahedra,while interaction with DBSA resulted in formation of a Cs_(x)O monolayer shell capping the NPL *** a result,both structural and optical stability of the CsPbBr3 NPLs is enhanced by strong covalent bonding of DBSA,which inhibits undesired phase transitions and decomposition of the perovskite phase potentially caused by ligand ***,rather small amount of DBSA ligands at the NPL surface results in a short inter-NPL spacing in their closely-packed films,which facilitates efficient charge injection and *** photoluminescence of the produced CsPbBr_(3) NPLs is bright(nearly unity emission quantum yield)and peaks at 457 nm with an extremely narrow bandwidth of 3.7 nm at 80 K,while the bandwidth of the electroluminescence(peaked at 460 nm)also reaches a record-narrow value of 15 nm at room *** value corresponds to the CIE coordinates of(0.141,0.062),which meets Rec.2020 standards for ultra-high-definition displays.

关键词： temperature stability narrow

来源：评论

学校读者我要写书评

暂无评论

A self-healing aqueous ammonium-ion micro batteries based on PVA-NH_(4)Cl hydrogel electrolyte and MXene-integrated perylene anode

引用

Nano Research Energy 2024年第4期3卷 57-67页

作者： Ke Niu Junjie Shi Long Zhang Yang Yue Mengjie Wang Qixiang Zhang Yanan Ma Shuyi Mo Shaofei Li Wenbiao Li Li Wen Yixin Hou Fei Long Yihua Gao College of Materials Science and Engineering Guangxi Key Laboratory of Optical and Electronic Materials and DevicesGuilin University of TechnologyGuilin 541004China School of Physics and Center for Nanoscale Characterization&Devices(CNCD) Wuhan National Laboratory for Optoelectronics(WNLO)Huazhong University of Science and Technology(HUST)Wuhan 430074China Information Materials and Intelligent Sensing Laboratory of Anhui Province Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of EducationInstitutes of Physical Science and Information TechnologyAnhui UniversityHefei 230601China Hubei Key Laboratory of Critical Materials of New Energy Vehicles&School of Mathematics Physics and Optoelectronic Engineering Hubei University of Automotive TechnologyShiyan 442002China

The successful study of self-healing aqueous micro batteries(AMBs)which inherit the advantages of aqueous batteries and have the ability to automatically repair damage is of great significance for the development of smart wearable and portable electronic ***,the rate performance and the related power density of developed self-healing AMBs using metal ions as charge carriers is limited,due to the strong interaction between metal ions and electrode ***,there is great potential for developing self-healing NH^(4+)AMBs,because of the outstanding advantages of NH^(4+)such as extremely abundant reserves,smaller hydrated ion radius and little molar ***,the development of self-healing NH^(4+)AMBs is still an extremely challenge due to the difficulty in developing self-healing hydrogels and instability of anode *** though,the firstly self-healing NH^(4+)AMBs based on tailoring hydrogel electrolyte and MXene-integrated perylene anode were successfully *** expected,self-healing NH^(4+)AMBs exhibit excellent energy density(82.48µWh·cm^(-2))and power density(3.09 mW·cm^(-2)),cycle life(81.67%after 3000 GCD cycles),flexibility(95.68%under 180°)and self-healing ability(94.16%after the 10th self-healing cycles).

关键词： self-healing PVA-NH_(4)Cl hydrogel PTCDI-Ti_(3)C_(2)T_(x)MXene anode self-healing NH_(4)+AMBs high-rate performance flexibility

来源：评论

学校读者我要写书评

暂无评论

Label-Free Evaluation of Treatment Efficacy in Laser Therapy by Terahertz Imaging

Label-Free Evaluation of Treatment Efficacy in Laser Therapy...

引用

2023 Cross Strait Radio science and Wireless technology Conference, CSRSWTC 2023

作者： Xu, Cong Wang, Guanlong Shi, Jia School of Electronic and Information Engineering Tianjin Key Laboratory of Optoelectronic Detection Technology and System Tiangong University Tianjin300387 China

ISBN: (纸本)9798350358971

Low-level laser therapy (LLLT) is a promising non-invasive treatment method in biomedical science. Rapid and high-sensitivity imaging evaluation of treatment efficacy in LLLT always remains changeling. To address this issue, here the confocal terahertz imaging is used to label-free evaluation of treatment efficacy in LLLT on ALI. The results show that terahertz imaging can effectively evaluate the therapeutic effect of LLLT on ALI with the advantages of high sensitivity. © 2023 IEEE.

关键词： label-free Low-level laser therapy (LLLT) THz imaging

来源：评论

学校读者我要写书评

暂无评论

Enhancing building pattern recognition through multi-scale data and knowledge graph:a case study of C-shaped patterns

引用

International Journal of Digital Earth 2023年第1期16卷 3860-3881页

作者： Zhiwei Wei Wenjia Xu Yi Xiao Mi Shu Lu Cheng Yang Wang Chunbo Liu Key Laboratory of Network Information System Technology(NIST) Aerospace Information Research InstituteChinese Academy of SciencesBeijingPeople’s Republic of China The Aerospace Information Research Institute Chinese Academy of SciencesBeijingPeople’s Republic of China School of Information and Communication Engineering Beijing University of Posts and TelecommunicationsBeijingPeople’s Republic of China School of Software Engineering Shenzhen Institute of Information TechnologyShenzhenPeople’s Republic of China Institute of Remote Sensing and GIS Peking UniversityBeijingPeople’s Republic of China School of Geography Science and Geomatics Suzhou University of Science and TechnologySuzhouPeople’s Republic of China

Building pattern recognition is important for understanding urban forms,automating map generalization,and visualizing 3D city ***,current approaches based on object-independent methods have limitations in capturing all visually aware patterns due to the part-based nature of human ***,these approaches also suffer from inefficiencies when applying proximity graph *** address these limitations,we propose a framework that leverages multi-scale data and a knowledge graph,focusing on recognizing C-shaped building *** first employ a specialized knowledge graph to represent the relationships between buildings within and across various ***,we convert the rules for C-shaped pattern recognition and enhancement into query conditions,where the enhancement refers to using patterns recognized at one scale to enhance pattern recognition at other ***,rule-based reasoning is applied within the constructed knowledge graph to recognize and enrich C-shaped building *** verify the effectiveness of our method using multi-scale data with three levels of detail(LODs)collected from AMap,and our method achieves a higher recall rate of 26.4%for LOD1,20.0%for LOD2,and 9.1%for LOD3 compared to existing methods with similar ***,also achieve recognition efficiency improvements of 0.91,1.37,and 9.35 times,respectively.

关键词： Building pattern recognition urban form knowledge graph rule-based reasoning

来源：评论

学校读者我要写书评

暂无评论

The Principle Analysis of Two-element Cross-eye Jamming Based on Phased Array

The Principle Analysis of Two-element Cross-eye Jamming Base...

引用

IET International Radar Conference 2023, IRC 2023

作者： Yang, Haonan Zhou, Liang Liu, Yongcai Su, Binbin Meng, Jin National Key Laboratory of Science and Technology on Vessel Integrated Power System Naval University of Engineering Wuhan China

ISBN: (纸本)9781839539954

The application of phased array to radar jammer is helpful to improve the effective isotropic radiated power (EIRP) and the ability to counter multiple targets. Two-element cross-eye jammer based on phased array is significantly different from traditional two-element cross-eye jammer (TTCJ) and multiple-element cross-eye jammer (MCJ) in terms of antenna elements layout, circuit architecture and signal processing. However, there are no published literatures to analyse the principle of phased array two-element cross-eye jammer (PATCJ). Therefore, a mathematical model of PATCJ against mono-pulse radar is established in this paper, and the principle and feasibility of applying phased arrays to two-element cross-eye jammer are discussed. The cross-eye gain of PATCJ is derived. Besides, it is verified that the random selection of phase-shifting reference units (PRUs) will not affect the jamming performance of PATCJ. The research results of this paper have guiding significance for the engineering realization of PATCJ. © The Institution of engineering & technology 2023.

关键词： Antenna phased arrays

来源：评论

学校读者我要写书评

暂无评论

SSPPs-based Low-pass Filter with Continuously Adjustable Cut-off Frequency

SSPPs-based Low-pass Filter with Continuously Adjustable Cut...

引用

2024 International Applied Computational Electromagnetics Society Symposium, ACES-China 2024

作者： Liu, Wen Xiu Wang, Jun Wang, Yue Xu, Ruo Feng Zhao, Lei China University of Mining and Technology School of Information and Control Engineering Jiangsu Xuzhou221116 China Xidian University Science and Technology on Antenna and Microwave Laboratory Xi'an710071 China Southeast University State Key Laboratory of Millimeter Waves School of Information Science and Engineering Nanjing211189 China

ISBN: (纸本)9798350355581

In this paper, a microwave filter with tunable cutoff frequency is proposed based on spoof surface plasmon polaritons (SSPPs) structure. The adjustable filter is proposed by adding metal branches controlled by varactors which can be changed through different bias. The simulated results show that the filter has different dispersion characteristics and exhibits low-pass bands with different cut-off frequencies. The proposed active adjustable filter is expected to play a potential role in modern communication system. © 2024 IEEE.

关键词： Low pass filters

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：