⚡ Category

eess

598 papers

⚡ electrical engineering

LEED Sustainable Sites and Indoor Environmental Quality Criteria in a LEED Gold-Certified Hospital: A Post-Occupancy Evaluation of Occupant Satisfaction

This post-occupancy evaluation of a LEED Gold-certified hospital in Türkiye reveals significant discrepancies between official Sustainable Sites and Indoor Environmental Quality certification achievements and healthcare professionals' actual satisfaction, highlighting the need to integrate user feedback into green building assessment and operations.

Gökçen Firdevs Yücel Caymaz, Kübra Koyuncu, Seyed Babek Ehsani2026-07-09
⚡ electrical engineering

Numerical Study on the Effects of Wall Wettability on Heat Transfer and Flow Characteristics during Flow Boiling in Microchannels

This numerical study reveals that while hydrophobic microchannel surfaces enhance heat transfer and reduce wall temperatures through rapid bubble detachment, they simultaneously increase pressure drop and flow instability, whereas hydrophilic surfaces improve flow stability but suffer from diminished heat transfer efficiency and higher wall temperatures due to bubble adhesion.

Ping Liu, Hao Xuan, Ruiqi Sun, Xiuhe Song2026-07-09
⚡ electrical engineering

Knowledge-based Expert System for Identifying and Classifying Electronic Sensors Using Vp-expert

This study presents a VP-Expert-based knowledge system that utilizes IF-THEN production rules to classify unlabelled electronic sensors by analyzing their physical properties and Arduino output responses, thereby serving as an effective diagnostic and educational tool for engineering students and hobbyists.

Fidelis Jumare Asengi, Valarie Oru Agbor, Loplem Joseph Maisamary, Abdulrazak Shehu2026-07-09
⚡ electrical engineering

Experimental Study on Heat Transfer Performance of Combined Channel-film Flow Control for Critical Regions of Hypersonic Vehicles

This experimental study in a Mach 8 wind tunnel demonstrates that a combined internal channel and external film cooling approach using supercritical carbon dioxide offers superior thermal protection for hypersonic vehicles by effectively balancing wall temperature control, heat-flux suppression, and minimal external flow disturbance.

Yatian Zhao, Jia Wei, Yang Xu, Hongkang Liu2026-07-09
⚡ electrical engineering

Optimizing produced water reinjection pump energy consumption using variable frequency regulation

This study demonstrates that replacing conventional fixed-speed throttling control with a staged variable frequency drive strategy for produced water reinjection pumps in mature oil fields eliminates hydraulic mismatch, reduces lifecycle energy consumption by 14.8%, and yields significant economic savings while mitigating mechanical stress on system components.

Olasunkanmi Oluwadara Olawole, Oluwatoyin Joseph Gbadeyan, Charles Deigh, Oludolapo Akanni Olanrewaju2026-07-09
⚡ electrical engineering

Affinity-driven salt steering for fouling-free solar evaporation and brine conditioning

This paper presents an affinity-driven salt steering strategy using a 3D rotating solar architecture with aluminum collectors to decouple evaporation from crystallization, achieving high-rate, fouling-free solar evaporation while selectively enriching lithium and reducing the Na⁺/Li⁺ ratio in hypersaline brines for direct lithium extraction.

Qiaoqiang Gan, Ahmed Mortuza Saleque, Afrah Harafan, Uma Pratheebha Umaiya Kunjaram, Khalid Hazazi, Sunmiao Fang, Waleed (…)2026-07-09
⚡ electrical engineering

Prescribed Performance Sway Suppression Control for Overhead Cranes under Friction and Actuator Saturation

This paper proposes a unified collocated partial feedback linearization control framework for overhead cranes that integrates online friction estimation, anti-saturation recovery, and prescribed performance functions to achieve rapid sway suppression and asymptotic stability under actuator limits and friction, outperforming conventional baselines in simulations.

Trong Nghia Phan, Huu Cuong Nguyen, Quang Hieu Ngo2026-07-09
⚡ electrical engineering

Mechanical Response Analysis of a Tunnel-First Subway Station Constructed with Circumferential Pipe Curtain Pre-Support

This paper proposes and numerically validates a novel circumferential pipe curtain pre-support method for the tunnel-first construction of subway stations, demonstrating its effectiveness in controlling ground settlement and ensuring structural stability through a closed arched pre-support system in complex urban environments.

Xiaojing Sun, Meiwei Zheng, Hanfan Liu, Zhengquan Ding, Huawei Guo2026-07-09
⚡ electrical engineering

Temperature–frequency-tuned impedance spectroscopy with interpretable full-spectrum modelling enables robust gas sensing

This paper introduces a temperature-frequency-tuned impedance spectroscopy approach combined with interpretable full-spectrum modeling and unsupervised learning to overcome the nonlinearity and sensitivity limitations of metal oxide semiconductor gas sensors, enabling robust, linear, and accurate detection of individual and mixed gases.

Hamza Ali Imran, Akshay Markanday, Oliver Brieger, Andreas Schütze, Christian Bur2026-07-09