Shenzhen University

Time–frequency mode decomposition for wind turbine vibration monitoring under variable speed operation

Wind turbine vibration monitoring under variable speed operation requires separating nonstationary rotor-order components whose frequencies and operating intervals depend on operating state. These components can occupy local support regions in the short-time Fourier transform (ST...

SCAN-FIQA: Multi-scale cross-attention network for fundus image quality assessment

Currently, the performance and reliability of AI-driven fundus image diagnostic models are critically constrained by the quality of real-world data. However, in clinical scenarios, the quality of fundus images often varies significantly due to factors such as differences in imagi...

Pediatric cancer refractive-index sensing with a deep learning-enhanced far-infrared highly sensitive spoof surface plasmon polariton metasurface absorber

Pediatric cancers remain a primary cause of childhood mortality globally, yet early detection is frequently hindered by overlapping clinical symptoms and the limitations of conventional diagnostic methods; we propose a highly sensitive spoof surface plasmon polaritons (SSPP)-base...

Triggering high-energy orbits in rotational nonlinear energy harvesters via time-varying external excitation and internal parameter modulation

The nonlinear dynamics of rotational piezoelectric energy harvesters can enhance power output and broaden the operational bandwidth. However, their practical application is severely constrained by uncontrollable switching between the high-energy orbit (HEO) and low-energy orbit (...

Non-Target Arthropod Community Variation Associated with Abamectin Trunk-Injection History in a Pinus massoniana Plantation

Abamectin trunk injection is used to control pine wilt disease, but field evidence linking injection history to non-target arthropod communities is limited. We compared uninjected plots with plots injected once in March 2024 (ATI1) or March 2022 (ATI3) in a Pinus massoniana plant...

Shear‐Thinning Rheology Reshapes Hydrodynamic Dispersion in Heterogeneous Fractures

Abstract Hydrodynamic dispersion of shear‐thinning fluid in fractured rocks is jointly governed by fracture heterogeneity and fluid rheology, yet the way aperture correlation length alters dispersion mechanisms remains unclear. Here, we carry out pore‐scale lattice Boltzmann simu...

Nanoscale Mechanisms of Corrosion Threshold: Effects of Passivation Film Crystal Structures

Abstract The corrosion resistance of passive films on reinforcing steel is fundamentally governed by the depassivation stability of iron oxide polymorphs under chloride-containing environments. In this study, the electrochemical behavior and atomistic depassivation mechanisms of...

Pollution duration drives divergent pathways of antibiotic and metal resistance gene dissemination in coastal mangrove sediments

Coastal mangrove sediments are critical reservoirs of antibiotic and heavy metal resistance genes (ARGs/HMRGs). Yet, how pollution history shapes their dissemination remains unclear. We elucidated this by comparing sedimentary resistomes across three distinct ecosystems: a pristi...

An AIEgen‐Based Covalent Organic Polymer With NIR‐II Emission for 980 nm Excitable Tumor Phototheranostics

ABSTRACT Covalent organic porous polymers (COPs) represent an attractive platform for phototheranostics due to their structural tunability and extended conjugation. Nevertheless, achieving COPs that simultaneously exhibit efficient second near‐infrared (NIR‐II) fluorescence and l...

Stochastic mesoscale modeling of chloride ingress in coastal concrete structures under climate change

Climate change is intensifying chloride-induced corrosion in marine reinforced concrete (RC) structures, yet conventional durability assessment fails to capture the coupled effects of material heterogeneity, environmental variability, and thermo-hygro-ionic transport. This paper...

Diversity, biogeography, and assembly of fungal communities in Chinese mangrove sediments

Fungi are essential to mangrove wetlands, yet the mechanisms governing their community assembly across environmental scales remain elusive. Utilizing high-throughput amplicon sequencing across seven representative mangroves along the Chinese coastline, we characterized the distri...

Grain boundary complexions stabilize Mg3Sb2-based thermoelectric devices with superior performance

Grain boundary complexions stabilize Mg 3 Sb 2 -based thermoelectric devices with superior performanceGraphical abstract Highlights • Ga-rich grain boundary complexions block Mg-diffusion channels • Mg 3 Sb 2 materials stabilize at 718 K for over 80 h• Single-leg device shows 13....

A new species of the genus Dugesia (Tricladida: Dugesiidae) from China

Chen, Yu-Hui, Chen, Xiao-Min, Wu, Cheng-Chen, Wang, An-Tai (2015): A new species of the genus Dugesia (Tricladida: Dugesiidae) from China. Zoological Systematics 40 (3): 237-249, DOI: 10.11865/zs.20150301, URL: http://zoobank.org/33f3beb5-b79a-45df-9681-aa5fcb90a3cc

Holistic co-design of fibre-optic distributed acoustic sensing and coherent communication

Integrating sensing into communication is crucial for the fully-connected and intelligent development of modern life. However, existing fiber-optic sensing and communication systems merely coexist without inadequate resource sharing, resulting in limited scalability for large-sca...

Toward high-efficiency photovoltaic energy harvesting: experimental validation of continuous, hybrid, and sensorless dual-axis tracking systems with fixed-tilt solar system

Solar tracking systems have gained considerable attention due to their potential to increase the energy yield of photovoltaic (PV) systems by maintaining the PV module at a favorable orientation relative to the Sun. However, conventional dual-axis trackers often rely on high-powe...

A new species of the genus Girardia (Tricladida: Dugesiidae) from China

Chen, Xiao-Min, Chen, Yu-Hui, Wu, Cheng-Chen, Wang, An-Tai (2015): A new species of the genus Girardia (Tricladida: Dugesiidae) from China. Zoological Systematics 40 (2): 166-178, DOI: 10.11865/zs.20150202, URL: http://zoobank.org/5520163b-0355-4362-9b98-8aa0ae049e4a

High-Performance SnO2 Ink for Detecting Low-Temperature H2S Gas with Advanced Dispensing Printing Technology

Hydrogen sulfide (H2S) is a highly toxic and environmentally hazardous gas, necessitating sensitive and reliable detection at trace concentrations. In this study, a dispensing-printed SnO2-based MEMS gas sensor was developed using a sol–gel-derived SnO2 precursor ink deposited di...

Too little time, too much to do: how time poverty undermines employees’ proactive service behavior

Purpose This paper aims to examine the relationship between time poverty and hotel employees’ proactive service behavior by identifying future self-continuity as a mediator and competitive climate as a moderator. Design/methodology/approach This research uses a multimethod design...

Self-organized optofluidic locking enables stable single-frequency lasing in dynamic liquid media

Liquid-state lasers are promising wavelength-agile, reconfigurable coherent light sources, but fluid gain media introduce Brownian motion, thermal transport, and refractive-index fluctuations that destabilize single-frequency emission. Here, we demonstrate that nonequilibrium flu...

Some Semi-decoupled Algorithms with Optimal Convergence for a Four-Field Linear Thermo-poroelastic Model

Abstract We propose a parallel semi-decoupled algorithm to efficiently solve a four-field thermo-poroelastic model. At the initial time step, all variables are computed simultaneously using a monolithic solver; thereafter, the system is split into a mixed linear elasticity (M) su...