# Ultrasonic Nondestructive Evaluation of Porosity Size and Location of Spot Welding Based on Wavelet Packet Analysis

> Research article (Journal of Nondestructive Evaluation, 2020) · cited 10× · AI/ML

**Wikidata**: [openalex:W2997376161](https://www.wikidata.org/wiki/openalex:W2997376161)  
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