China Jiliang University

SAN-YOLO for Boiler Weld Defect Detection in Phased-Array Ultrasonic S-Scan Images

Weld defect detection is critical for ensuring welding quality, and object detection has become an effective approach for localizing weld-seam defects. To reduce missed detections of small defects and address the significant scale variation in defects in ultrasonic phased-array S...

SLUG: Vision-Based UAV Self-Localization in GNSS-Denied Urban Environments

In complex environments such as cities and canyons, cross-view matching of UAV and satellite imagery serves as a complementary approach to self-localization in the absence of GNSS signals. To address the limitations of existing datasets—namely their limited variety of scenes and...

The unique role of bromine in NaF crystallization of photo-thermo-refractive glass

Photo-thermo-refractive (PTR) glass generates a refractive-index modulation through photothermally induced NaF nanocrystallization, making it essential for volume Bragg gratings. The halide co-dopant determines how silver nanoparticle templates (Ag NPs@AgX, X = Cl, Br, I) steer N...

Research on the design and characteristics of gap-type laminar flow modules based on small gas flow rates

Due to the numerous problems of traditional laminar flowmeters, such as poor linearity, complex processing and usage, and the susceptibility of component structures to fluid influence, a laminar flow generator based on a conical structure was designed. By adding cones on both sid...

Effect of immersion height on thermal runaway triggered by overcharge in LiFePO4 batteries

Immersion cooling (IC) is an effective strategy for suppressing thermal runaway (TR) in lithium-ion batteries. However, the influence of immersion height on TR behavior has received limited attention, especially under partial immersion conditions, and the combined effects of imme...

CSLF6 Mediates Cadmium Accumulation in Rice by Modulating Cellulose Synthesis

Abstract Cadmium (Cd) pollution severely limits rice growth and yield. The plant cell wall acts as the first barrier against Cd, but how cell wall biosynthesis affects Cd accumulation is unclear. This study found that CSLF6, a cellulose synthase-like F, is involved in cellulose s...

Operando spatiotemporal reconstruction of surface thermo-mechanical fields in a lithium-ion pouch cell using a quasi-distributed fiber Bragg grating sensor network

Lithium-ion batteries exhibit complex thermo-mechanical behavior during operation, and the spatiotemporal evolution of temperature and strain is closely related to performance degradation and structural safety. However, existing sensing methods remain limited in achieving high-pr...

End-to-End Calibration and Performance Validation of a Chromatic Confocal Displacement System with a Reproducible All-Spherical Objective

Chromatic confocal studies often report optical design and metrology performance using non-equivalent metrics, limiting reproducibility and practical comparison. We present a design-to-validation study built around a reproducible four-element, three-group all-spherical objective...

Spatiotemporal all-optical diffractive neural networks empowered by spatiotemporal light field manipulation

All-optical neural networks (AONNs) offer significant potential for feature detection and pattern recognition by leveraging light-speed processing, high parallelism, and low energy consumption. However, traditional AONNs are limited to spatial light intensity distributions for bo...

Multi-Temperature VOCs + OH Rate Coefficients Prediction via GCN Constrained by the Arrhenius Equation

Abstract Based on the accumulation of the high-quality databases from experimental measurements and theoretical calculations, data-driven machine learning approaches has been widely applied to rate coefficient prediction. However, most existing models are confined to single-tempe...

Design and focus correction of 3D-printed multi-focus metasurfaces based on particle swarm optimization

A multi-focus metasurface is designed based on the phase multiplexing principle and geometric phase structures, and its foci are optimized. Traditional multi-focus metasurfaces relying on phase multiplexing often suffer from focal shift and non-uniform energy distribution in both...

AI Agent-Assisted Design Method for Partial Interior Renovation of Existing Homes

Addressing the challenges associated with partial renovation of existing residential interiors, including ordinary homeowners’ incomplete expression of design needs, limited access to professional design support, and the inability of conventional AIGC tools to accurately interpre...

Managing solar transmittance and long-wave infrared emissivity in dual-channel smart windows

Most smart windows regulate solar transmittance but overlook long-wave infrared (LWIR) radiative exchange, limiting year-round thermal regulation. This Review discusses dual-channel smart windows that dynamically tune both solar transmission and LWIR emissivity, including atmosph...

Symmetry-cooperative optical-field engineering for ultrabroadband bulk photovoltaic photodetection

The bulk photovoltaic effect (BPVE) enables light-to-electricity conversion without external bias, but its practical reach is constrained by the rapid collapse of photoresponse at low photon energies. Here we show that this limitation can be overcome through cross-scale symmetry...

Adaptive Path Planning and Process Optimization for FDM of Structural Components with Complex Geometric Features

Fused deposition modeling (FDM) faces significant challenges in simultaneously achieving high forming efficiency and surface quality when processing models with complex geometric features, such as multibranch structures and independent holes. This article proposes an adaptive pat...

Assessing the Fitness-for-Purpose of Published Breath Analysis Data: A Quality Assessment Framework for Diabetes Biomarker Research

Abstract Background Exhaled breath analysis is a promising field for non-invasive diabetes diagnostics, but its clinical translation is hindered by contradictory findings across studies. We argue that this inconsistency stems from significant methodological heterogeneity and the...

Event‐Triggered Off‐Policy Learning for Data‐Efficient Control of Complex Unmodeled Systems

ABSTRACT This paper addresses the challenges of low data efficiency and diminished control accuracy in complex systems with completely unknown dynamics. Conventional off‐policy adaptive dynamic programming (ADP) methods, which rely on random data sampling, often lead to the accum...

The Transmission Properties and Dynamical Characterization Driven by the Flat Bands in a Non‐Hermitian Dimerized Lattice

ABSTRACT A method of Fourier transform engineering is demonstrated to constructing flat bands in a two‐band model. By introducing a momentum‐dependent pseudo‐‐symmetry potential into a generalized Su–Schrieffer–Heeger model, we generate two momentum‐independent flat bands. The co...

Emerging nitrogen-driven urban atmosphere control on aerosol iron dissolution for biogeochemical cycles

Iron (Fe) is a critical micronutrient regulating marine productivity and the global carbon cycle, yet its atmospheric dissolution mechanisms remain debated for biogeochemical cycle. The prevailing “iron-sulfur coupling” paradigm has traditionally explained proton-promoted dissolu...

Off-Axis Wavefront Measurement System for Aspheres Based on a Reflective SLM

Reflective SLMs are gaining increasing attention for aspherical surface testing due to their dynamic adjustability, fast operation, and high optical efficiency, offering clear advantages over costly CGH methods. This paper presents a wavefront measurement system that avoids the n...