eess papers | Gist.Science

Quasi-Dynamic Experimental Investigation of the Internal Flow Field in the Stationary Components of a High-Flow-Coefficient Centrifugal Compressor

This study utilizes a novel quasi-dynamic test rig to simulate impeller wake migration in a high-flow-coefficient centrifugal compressor, revealing that while the U-bend significantly reduces circumferential non-uniformity and return channel vanes induce new fluctuations, the total stage loss remains constant regardless of the wake's circumferential position.

Kaikai Zhao, Zhengrong Qin, Lin Zhang, Fei Ren2026-10-27

⚡ electrical engineering

Design and Heat-Transfer Performance of a Hybrid Insulated Inner-Pipe String for Deep Geothermal Coaxial Heat Exchangers

This study proposes and validates a hybrid insulated inner-pipe string combining an upper steel section with a lightweight 7075-T6511 aluminum-alloy lower section and advanced vacuum-aerogel insulation, which significantly reduces weight while maintaining high-temperature mechanical reliability and achieving a heating COP of 6.80 in a 4050-m deep geothermal coaxial heat exchanger.

Zhenyang Hu, Dong Ding, Hui Guo, Wenhao Li2026-10-27

⚡ electrical engineering

Parallax-aware and MAB-empowered Beam Training for Modular XL-MIMO Systems

This paper proposes a parallax-aware and multi-armed bandit-empowered beam training scheme for modular XL-MIMO systems that synergistically combines adaptive codebook updates with a greedy exponential Thompson sampling strategy to dynamically compress the action space and optimize beam selection, thereby achieving substantial effective spectral efficiency gains with significantly reduced training overhead in hybrid near- and far-field environments.

Chuanpeng Xu, Huibin Liang, Yunchao Song, Chen Liu, Yusong Wang2026-10-27

⚡ electrical engineering

Direct Geometric Reconstruction of Flaws from Simulated Ultrasonic Inspection Data

This study demonstrates a proof of concept for directly reconstructing the geometric contours of inner-surface-breaking flaws in steel from simulated pulse-echo ultrasonic data using a supervised convolutional regression model, bypassing traditional image reconstruction and interpretation.

Daniel Algernon2026-10-27

⚡ electrical engineering

A Lightweight Intelligent Bracelet for Real-Time Emergency Detection Using PPG Signals in Solo-Living Elderly

This paper presents a lightweight, energy-efficient smart bracelet that utilizes a quantized hybrid deep learning model running entirely on a microcontroller to detect emergency events in solo-living elderly individuals using only wrist PPG signals, achieving high accuracy and low latency while extending battery life to approximately 24 days.

Sohail Khalid2026-10-27

⚡ electrical engineering

3DSolidFormer for high-resolution full-field prediction in three-dimensional linear elasticity

This paper introduces 3DSolidFormer, a transformer-based deep learning model that efficiently predicts high-resolution full-field displacement, strain, and stress distributions in three-dimensional linear elasticity structures with millions of elements in a single forward pass, achieving high accuracy while satisfying displacement constraints by construction.

David Guirguis2026-10-27

⚡ electrical engineering

Machine Learning Assisted Design and Optimization of a Dual-Port SIW Antenna with LP-to-CP Conversion for sub-6 GHz 5G Communication System

This paper presents a machine learning-assisted design of a compact, high-gain dual-port SIW antenna that converts linear to circular polarization for robust sub-6 GHz 5G MIMO communication, achieving optimized performance across the target frequency band.

Subodh Singh, Amit Prakash2026-10-26

⚡ electrical engineering

A compact multi-legged mobile robot with leg-mounted adhesion mechanisms for climbing walls in narrow spaces

This paper presents the design, mechanical modeling, and experimental validation of a compact multi-legged wall-climbing robot equipped with leg-mounted negative-pressure adhesion mechanisms, demonstrating its superior adaptability to uneven surfaces and obstacles for inspecting aging infrastructure in narrow spaces.

Yuto ENDO, Masato MIZUKAMI, Naohiko HANAJIMA, Yoshinori FUJIHIRA2026-10-26

⚡ electrical engineering

Training Data Selection for Weakly-Supervised Lunar Traversability Estimation: A Cross-Domain Study

This paper demonstrates that for weakly-supervised lunar traversability estimation, training data selection should prioritize visual and morphological similarity to the target lunar environment over dataset realism, as lunar analog facilities consistently outperform other Earth-based sources in cross-domain generalization.

Bartosz Ptak2026-10-26

⚡ electrical engineering

A New Method for Controlling Weld Line Movement in Deep Drawing of Tailor Welded Blank

This study proposes and validates a new geometric compensation strategy involving pre-cutting sheets along a curved path to effectively control and minimize weld line movement during the deep drawing of tailor-welded blanks, as confirmed by both experimental results on an industrial car door component and numerical simulations using ABAQUS/CAE.

Shrouk Maghrapy, Alaa El-Mokadem2026-10-26

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