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Author

Leijun Xu

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3 papers indexed here

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Sep 2026

Terahertz time-domain spectroscopy combined with chemometrics for detecting homogeneous adulteration in olive oil: A case study of expired and refined olive oils.

Extra virgin olive oil (EVOO) is widely recognized as a premium grade oil, commanding a high market value and a strong reputation for health benefits. The adulteration of EVOO with low grade oils increases, especially when the adulterants are chemically similar. This study developed a detection strategy based on terahe...

Xiao-Yan Geng, Lei-Jun Xu, Jihong Deng et al. · 0 citations
Sep 2026

Fingerprint spectrum matching-empowered terahertz metamaterial sensor for the ultrasensitive detection of sorbic acid.

Excessive intake of sorbic acid (SA), a widely used food and beverage preservative that acts as a weakly absorbing small molecule in the terahertz band, poses potential hazards to human health. Here, we develop an asymmetric split-square metamaterial sensor and propose an ultrasensitive quantitative detection method ba...

Yao Zhang, Lei-Jun Xu, Jian-Feng Chen et al. · 0 citations
Review Open access Aug 2026

A Comprehensive Review of Deep Learning in Agricultural Visual Perception: Progress, Bottlenecks, and Emerging Trends

This comprehensive review first constructs a progressive analytical framework from low-level data augmentation and static spatial cognition to high-level dynamic spatio-temporal reasoning, and then systematically classifies existing literature.

Chen Chen, Run-Lin Liu, Lei-Jun Xu · 0 citations

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