eess papers | Gist.Science

Development and Experimental Evaluation of an IoT-Based Multi-Point Thermal Monitoring System for an R134a Domestic Refrigeration System

This study presents the development and experimental validation of a low-cost, IoT-based multi-sensor monitoring system using an ESP32 microcontroller and ThingSpeak cloud platform to provide real-time, component-level thermal and humidity analysis of a domestic R134a refrigeration system, demonstrating its effectiveness in capturing transient behaviors and establishing a foundation for predictive maintenance.

Johnson Felix Eiche, Bukola Olalekan Bolaji, Olatunde Ajani Oyelaran2026-08-27

⚡ electrical engineering

Construction and Application of an AI-Agent-Based Workflow for the Rapid Survey of Building Damage and Functionality

This paper presents an AI-agent-based workflow that integrates on-site evidence, code-grounded reasoning, and Bayesian inference to rapidly and objectively assess post-earthquake building functionality at the room level, overcoming the limitations of traditional component-level damage grading by explicitly modeling the relationship between physical damage and operational resilience.

Xu Zheng, Jin Liu2026-08-27

⚡ electrical engineering

2-Terminal refresh-free memory for high-density and low power consumption during data retention

This paper proposes a high-density, low-power 2-terminal refresh-free memory cell for 1T-DRAM applications that utilizes a multilayer Si/SiGe nanowire structure with a polysilicon layer and buffer to achieve excellent data retention, fast operation speeds, and minimal standby current.

Hyeontea Shin, Yijoon Kim, Jihong Park, Ki Yeong Kim, Kyounghwan Oh, Ju Hong Park, Chang-Ki Baek2026-08-27

⚡ electrical engineering

GRU Based Sliding Mode Controller for Permanent Magnet Synchronous Motor

This paper proposes a robust PMSM speed control system that integrates a sliding mode controller with a Gated Recurrent Unit (GRU) based load torque observer to effectively suppress chattering and minimize steady-state speed errors under varying load conditions without requiring a physical torque sensor.

Hayleyesus Girma Dirara, Feleke Tsegaye Yareshe, Mouaz Al Kouzbary2026-08-27

⚡ electrical engineering

Design, Fabrication, and Verification of LABLAB 2.0: A Large-Scale Multi-Part 3D Concrete Printed Sculpture

This paper details the end-to-end workflow for designing, fabricating, and verifying LABLAB 2.0, a large-scale multi-part 3D concrete sculpture, demonstrating that successful implementation relies not only on material and printing performance but also on critical factors such as segmentation logic, handling strategies, tolerance management, and workflow organization.

Maris Sinka, Ella Spurina, Matijs Babris, Anna Salnikova, Arturs Davis Biezins, Nicolas Predella, Evaldas Serelis, Lucij (…)2026-08-27

⚡ electrical engineering

False-Alarm-Controlled Evaluation of Gas Indices and Deep Learning for Early Detection of Coal Spontaneous Combustion

This paper proposes a false-alarm-controlled evaluation protocol that reveals Graham's index fails to reliably detect coal spontaneous combustion in field conditions, whereas a carbon-monoxide threshold and attention-LSTM models demonstrate superior early detection capabilities when compared at matched false-alarm rates.

ULAS CINAR2026-08-27

⚡ electrical engineering

A Hybrid Geophysical–Geotechnical Approach for Landslide Stability Assessment

This study evaluates the stability of a landslide-affected road in Bonga Town, Ethiopia, by integrating geophysical surveys, geotechnical testing, and numerical modeling to confirm the slope's instability and propose effective stabilization and drainage measures for rehabilitation.

Semachew M. Kassa, Africa M Geremew, Nandyala Darga Kumar, Grzegorz Kacprzak2026-08-27

⚡ electrical engineering

Structure-Sensitive Characterization of Additively Manufactured IN718 Using Hybrid Ultrasonic SPC-I and XCT-Derived Porosity Features

This study proposes and validates a novel, physics-informed framework integrating hybrid ultrasonic SPC-I metrics with X-ray computed tomography (XCT)-derived porosity features to characterize structure-sensitive defect interactions and identify distinct porosity regimes in additively manufactured IN718, demonstrating that pore size, variability, and spatial clustering drive acoustic responses more significantly than porosity volume fraction alone.

Amir Nayebzadeh, Shreyas Athreya, Tribikram Kundu, I-Tzu Huang, I-Ting Ho2026-08-27

⚡ electrical engineering

Data-driven multi-response optimization of locust bean pulp brake-pad composites using Taguchi L25 design, machine learning and SHAP explainability

This study presents an integrated framework combining Taguchi L25 experimental design, multi-response desirability optimization, and explainable machine learning to identify optimal manufacturing parameters for sustainable locust bean pulp-reinforced brake-pad composites, while explicitly noting that the proposed global optimum requires further experimental validation.

Chike Martins Atah¹2026-08-27

⚡ electrical engineering

Techno-economic Analysis of Photovoltaic Distributed Generation Units, Capacitor Banks, and Electric Vehicle Charging Stations on Distribution Network. A Case Study of the Ashanti Region, Ghana

This paper presents a unified techno-economic framework using multi-objective optimization to simultaneously determine the optimal siting and sizing of photovoltaic units, capacitor banks, and electric vehicle charging stations on Ghana's Ashanti Region distribution network, demonstrating that coordinated planning can drastically reduce power losses and voltage violations while generating substantial long-term financial returns.

Mante Bismark, Patrick N. Ayambire, Albert K. Awopone, Isaac Prempeh, Ernest Fiko Morgan2026-08-27

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