⚡ electrical engineering

Experimental Investigation on Performance, Emission, and Tribological Characteristics of Waste Plastic Oil Blends With Various Metal Oxide Nanoparticles in a Diesel Engine

This study demonstrates that adding 50 ppm MgO nanoparticles to a 20% waste plastic oil blend significantly improves diesel engine performance and tribological characteristics while reducing CO, HC, and smoke emissions, despite a slight increase in NOx.

Thirugnanasambantham Rajamanickam, Santhoshkumar Annamalai, Jayakumar Thangamani, Arunprasad Jayaraman2026-07-23
⚡ electrical engineering

Modeling method for axial symmetric liquid storage tank sloshing equivalent parameters based on random forests

This paper proposes a rapid, high-precision modeling method for the equivalent sloshing parameters of axisymmetric liquid storage tanks using a Random Forest proxy model trained on a large-scale dataset, which significantly improves design efficiency and reveals that fill ratio and length-to-slenderness ratio are the most critical geometric factors influencing sloshing behavior.

Yulin Chen2026-07-23
⚡ electrical engineering

Numerical Simulation and Structural Optimization of Electrostatic Precipitators for Particle Purification in Space Capsules

This study numerically simulates and structurally optimizes electrostatic precipitators for space capsules by comparing four electrode configurations, demonstrating that the W1-type and Single-type designs combined with a pre-installed filter screen achieve over 92% purification efficiency for 0.2–1.0 μm particles through synergistic mechanical and electrostatic mechanisms.

Lingzi Meng, Hao Wang, Nan Su, Mengdie He, Fan Mo, Cheng Liu2026-07-23
⚡ electrical engineering

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

This paper presents a nanoplasmonic hydrogen sensor that integrates seven physical metal nanoparticle arrays to create 64 virtual sensing materials and employs an encoder-only transformer model to achieve accurate quantitative detection of hydrogen and interfering species in chemically complex, humid urban air environments.

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

This study establishes an optimized process window for wire arc directed energy deposition of 18Ni-350 maraging steel, demonstrating that while aging significantly enhances tensile strength and hardness, the impact toughness remains stable, confirming the viability of this method for producing high-strength, impact-tolerant near-net-shape components.

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

This simulation study reveals that the effectiveness of crowd-sourced continuous control is not monotonically dependent on crowd size but is instead governed by a conditional ceiling effect where performance gains from adding participants only emerge under specific combinations of adversarial ratios and trajectory geometries, with complex, rapidly reversing paths imposing structural limits that additional crowd members cannot overcome.

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

This study demonstrates that a stacking model combining Random Forest and K-Nearest Neighbors, trained on 465 data samples, achieves exceptional accuracy (R² = 0.996) in predicting the compressive strength of steel fiber-reinforced recycled aggregate concrete while identifying the water-to-binder ratio as the dominant influencing factor through SHAP analysis.

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

This paper proposes and validates a novel integrated Bayesian-Fuzzy GIS approach to assess urban resilience against high-impact security threats at the parcel level, demonstrating through a case study of Tehran's District 5 that combining target attractiveness analysis with resilience mapping effectively identifies critical vulnerabilities and prioritizes interventions to significantly improve urban resilience.

Mahdi Bitarafan2026-07-23