Results 51 to 60 of about 24,664 (119)
智能科学与技术学报, 2021 在电力系统需要巡检的大环境下，人工巡检的传统方式存在很大不便和安全隐患，而采用无人机的目标检测方法在绝缘子检测识别方向有很大的应用前景。针对绝缘子图像检测中存在的场景复杂、视角多变、设备计算能力受限等问题，提出了一种改进的轻量级SE-YOLOv5s卷积神经网络来实现对绝缘子的快速目标检测，该方法首先在YOLOv5s网络中融合SE注意力模块，以强化网络对绝缘子目标的辨识能力，随后采用K-means聚类方法构建绝缘子的先验框，以提升定位精度，最后构造置信度与定位任务联合的损失函数，并引入 Mosaic ...
田庆 +4 more
doaj
Comprehensive Risk Assessment of Hazards in Grain Supply Chain Based on Multi-Dimensional Data(多维数据驱动粮食供应链危害物风险综合评价) [PDF]
Shipin kexue jishu xuebao, 2019 In order to scientifically and reasonably evaluate the comprehensive risks of heavy metals, mycotoxins, pesticide residues and microorganisms in all aspects of the grain supply chain, based on the analysis of sampling data and other multi-dimensional ...
WANG Xiaoyi(王小艺) +5 more
doaj +1 more source
Poverty &Public Policy, Volume 18, Issue 2, June 2026.ABSTRACT Cash transfers have become an increasingly important social protection tool in development and humanitarian contexts. In developing countries, cash transfers can be used to build economic resilience. This study examines the effects of unconditional cash transfers on asset accumulation among low‐income households in rural Northern Uganda. Using
Simon Peter Nsereko +2 more
wiley +1 more source
Dehydrogenation Thermodynamic and Kinetic Challenges of Mg‐Ni‐Based Alloy Hydrides
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Solid‐state hydrogen storage stands as a pivotal, safe, and efficient solution for the future hydrogen economy. Among diverse hydrogen storage systems, Mg‐Ni‐based alloy hydrides are recognized as cornerstone materials. However, their practical application is hindered by two core challenges: the high thermodynamic stability of the hydride ...
Jinglan He +6 more
wiley +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Engineering of the catalyst interface and modulation of transition–metal d–band play critical roles in the electrocatalytic hydrogen evolution reaction (HER). Herein, a synthetic strategy is developed to fabricate nitrogen‐doped carbon nanotubes (N–CNTs)–supported Ni3Se4–CeO2 heterojunction catalysts through a facile chemical vapor deposition (
Zhiqiang Sun +10 more
wiley +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Improving catalytic activity for volatile organic compounds (VOCs) oxidation and enhancing water‐tolerance stability remain challenging in practical applications. Herein, a composite catalyst integrating Pt/CoOx‐NiOx mesoporous nanorods (MNRs) with a phenyltriethoxysilane (PhTES)‐modified surface was fabricated via a facile route for toluene ...
Jiaqin He +13 more
wiley +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT NiTi shape memory alloys (SMAs) show excellent performance in vibration damping and corrosion resistance. However, due to low hardness and lack of self‐lubrication, they suffer severe friction and wear during service. Although various strategies including doping and heterostructure design have been proposed, the effects are unsatisfactory.
Huwen Ma +13 more
wiley +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The development of lightweight, high‐attenuation, and broadband carbon‐based electromagnetic wave absorbers is hindered by the intrinsic trade‐off between impedance matching and dielectric dissipation. Herein, we report a facile and scalable synthesis of N‐doped lignin‐derived interconnected porous carbon (Nx‐LIPC) via hydrogen‐bond self ...
Bin‐Peng Zhang +7 more
wiley +1 more source
Realization of a distributed system detect-bed-IVD system(分布式系统调试器IVD的系统实现)
Zhejiang Daxue xuebao. Lixue ban, 2001 介绍了一个自主式智能车辆AIV系统的分布式系统测试床IVD系统.首先讨论了IVD系统的设计目标，然后在介绍AIV结构的基础上，详细地分析了IVD系统，按实时在线调试和离线重放两种情况进行一一讨论.该系统己在智能车辆AIV系统开发及调试实验中得到应用，实验结果验证了该系统是进行在线实时观察，离线分析问题的强有力的工具.
XUWen-yuan(徐文渊) +1 more
doaj +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Aqueous zinc‐ion hybrid capacitors (ZICs) bridge the gap between high‐energy batteries and high‐power supercapacitors, yet their performance is fundamentally bottlenecked by the micropore confinement effect in carbon cathodes, which restricts hydrated Zn2+ transport and active site utilization.
Qian Li +12 more
wiley +1 more source