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Research on Pantograph Defect Classification Based on Vibration Signals
Published 2024-12-01“…Constitutionally, the option to replace contact elements or individual segments of the pantograph exists if wear is detected. …”
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42
Acoustic metasurface constructed by periodic parallel Helmholtz resonators for gas sensing applications
Published 2025-07-01“…The resonance frequency shift occurs due to the filling gas samples inside the defective structure. Using the finite element method, numerical simulations show that the defective Helmholtz resonator modifies the pressure distribution and reduces the band gap. …”
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43
Ultrasonic online monitoring method of internal defects inmetal additive manufacturing
Published 2025-03-01“…Laser ultrasound has demonstrated significant potential for rapid defect scanning and detection, owing to its non-contact and multimodal capabilities. …”
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TOPOLOGICAL IMAGE PROCESSING FOR COMPREHENSIVE DEFECT AND DEVIATION ANALYSIS USING ADAPTIVE BINARISATION
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The modeling and condition analysis of nondestructive testing based on ESPI for internal defects of materials.
Published 2025-01-01“…We present the effect of loading mode and loading parameters to the defect detection. Firstly, the finite element analysis method is used to establish models to simulate the defect detection of aluminum plates under different loading conditions. …”
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46
Morphological Analysis of White Cement Clinker Minerals: Discussion on the Crystallization-Related Defects
Published 2016-01-01“…Scanning electron microscopy (SEM) was used to characterize the main phases of white Portland cement clinker and the defects associated with the formation of clinker mineral elements. …”
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ANALYSIS OF SURFACE DEFECTS OF ALUMINUM AND ITS ALLOYS WITH A SCANNING KELVIN PROBE
Published 2017-02-01“…The presence of the second mode in the CPD distribution histogram indicates the significant proportion of defect areas on the sample surface.Analysis of visualized CPD distribution maps using defined criteria allows detecting and characterizing such defects as residual stress areas, areas with reduced microhardness, surface contamination spots, corrosion defects. …”
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48
The effect of a keyhole defect on strain localisation in an additive manufactured titanium alloy
Published 2024-11-01“…A nanoscale speckle pattern was used to allow small changes in strain to be detected and resolved within individual lamella and at pre-existing crack locations around the defect. …”
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49
Research on Quantitative Evaluation of Defects in Ferromagnetic Materials Based on Electromagnetic Non-Destructive Testing
Published 2025-06-01“…Then, a higher precision three-dimensional nonlinear finite element simulation model is established, and the effects of the excitation parameters and detection positions on signal characteristics are investigated. …”
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50
COMPARATIVE STUDY ON FATIGUE PROPERTIES OF WHEEL MATERIALS CONTAINING INCLUSIONS AND SHRINKAGE DEFECTS (MT)
Published 2023-01-01“…The location of the defect in the CL65 wheel rims was determined by ultrasonic detection, and workblank samples containing the defect were taken out and processed into fatigue samples. …”
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51
A Trimming Strategy for Mass Defects in Hemispherical Resonators Based on Multi-Harmonic Analysis
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52
Multi-Physics Coupling Simulation of Surface Stress Waves for Interface Debonding Detection in Underwater Grouting Jacket Connections with PZT Patches
Published 2025-05-01“…In this paper, an interface debonding defect detection and localization approach for scale underwater GJC specimens using surface wave measurement is proposed and validated numerically. …”
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Thermal history-driven void formation in silicon crystals: A discrete model approach
Published 2025-09-01“…Wafer cleaning and etching procedures were employed to increase defect visibility, and defect detection was carried out using a laser-based particle counting system. …”
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54
Characteristics and propagation of switching-induced stress waves in SiC MOSFET power modules
Published 2025-06-01“…In this study, a dedicated SSW detection platform was developed for SiC MOSFET power modules, where the mechanical wave nature was verified through time-delay analysis. …”
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55
Method of Quality Control of Nuclear Reactor Element Tightness to Improve Environmental Safety
Published 2025-04-01“…The proposed non-destructive testing method allows for detecting defects on the inner and outer cladding surfaces without removing the elements from the nuclear reactor, which ensures prompt response and prevention of radiation leakage. …”
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MicroRNA-Dependent Transcriptional Silencing of Transposable Elements in Drosophila Follicle Cells.
Published 2015-05-01“…Interestingly, the miRNA defects differentially affected TE- and 3' UTR-derived piRNAs. …”
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A Review of Finite Element Studies on Laser-Based Acoustic Applications in Solid Media
Published 2025-03-01“…This review examines the role of the FEM in laser-based acoustics for wave propagation, defect detection, biomedical diagnostics, and engineering applications. …”
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Vibration-Based Damage Prediction in Composite Concrete–Steel Structures Using Finite Elements
Published 2025-01-01“…Therefore, detecting structural damage early is essential to preventing catastrophic failures. …”
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BladeSynth: A High-Quality Rendering-Based Synthetic Dataset for Aero Engine Blade Defect Inspection
Published 2025-07-01“…The dataset generation process begins with preparing Computer-Aided Design (CAD) models and material textures, then constructing a realistic inspection scene incorporating domain-randomized camera settings, lighting, and background elements. The generated data is assessed for effectiveness in both supervised and unsupervised defect detection tasks. …”
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Identification of bored pile defects utilizing torsional low strain integrity test: Theoretical basis and numerical analysis
Published 2025-05-01“…The torsional low strain integrity test (TLSIT), known for its advantages such as a smaller detection blind zone, improved identification of shallowly buried defects, stable phase velocity for signal interpretation, and better adaptability for existing pile testing. …”
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