⚡ electrical engineering

A Quantitative Transformer-Augmented and Virtual-Material-Multiplexed Plasmonic Hydrogen Sensor for Chemically Deactivating Humid Air Environments

本文提出了一种纳米等离激元氢气传感器,该传感器通过集成七种物理金属纳米颗粒阵列来创建64种虚拟传感材料,并采用仅编码器(encoder-only)Transformer模型,实现了在化学成分复杂且潮湿的城市空气环境中对氢气及干扰物种的精确定量检测。

Christoph Langhammer, Henrik Klein Moberg, Athanasios Theodoridis, Carl Andersson, Joachim Fritzsche, Sara Nilsson, Paul (…)2026-07-23
⚡ electrical engineering

Wire arc directed energy deposition of 18Ni-350 maraging steel: process optimization, mechanical properties and aging response

本研究确立了18Ni-350马氏体时效钢丝弧定向能量沉积的最佳工艺窗口,证明了虽然时效显著提高了抗拉强度和硬度,但冲击韧性保持稳定,从而证实了该方法在生产高强度、高抗冲击近净成形部件方面的可行性。

André Ramalho, Guilherme Gamito, Joana Antunes, Carla Machado, Catarina Vidal, Valdemar Duarte, Miguel Machado, Telmo Sa (…)2026-07-23
⚡ electrical engineering

When Crowd Size Stops Mattering: Characterizing the Ceiling Effect in Crowd-Sourced Continuous Control — A Simulation Study

这项模拟研究表明,众包连续控制的有效性并非单调依赖于人群规模,而是受制于一种条件性的天花板效应,即只有在对抗比例与轨迹几何形状的特定组合下,增加参与者带来的性能增益才会显现,而复杂且快速反转的路径则施加了额外的成员无法逾越的结构性限制。

BongKeun Song2026-07-23
⚡ electrical engineering

AI-driven design for the compressive strength of steel fiber-reinforced recycled aggregate concrete: Stacking models and parametric analysis

本研究表明,通过在465个数据样本上进行训练,结合随机森林和K-最近邻算法的堆叠模型在预测钢纤维增强再生骨料混凝土的抗压强度方面达到了极高的准确度(R² = 0.996),同时通过SHAP分析识别出水胶比是主要的显著影响因素。

Thien Phuc Nguyen, Tan-Duy PHAN, Kha-Ky LAM2026-07-23
⚡ electrical engineering

Assessing Urban Resilience to High-Impact Security Threats Using Bayesian-Fuzzy GIS Analysis: Evidence from District 5 of Tehran

本文提出并验证了一种新型的集成贝叶斯-模糊地理信息系统(GIS)方法,用于在地块层面评估城市应对高影响安全威胁的韧性,并通过对德黑兰第五区的案例研究证明,将目标吸引力分析与韧性制图相结合,能够有效识别关键脆弱性并优先确定干预措施,从而显著提高城市韧性。

Mahdi Bitarafan2026-07-23