Shan Wang

1 week ago | opg.optica.org | Shan Wang |Songnian Fu |Di Lin |Yuwen Qin

We report the generation of high peak power linearly polarized femtosecond optical vortex pulses based on parabolic pulse amplification within a large-mode-area few-mode Yb-doped fiber (YDF) amplifier system. A dispersion-managed passively mode-locked Yb-doped fiber oscillator with a Gaussian-shaped spectrum serves as the seed source, which evolves into parabolic shape in the subsequent preamplifiers.

2 weeks ago | insight.jci.org | JCI Insight |Deanna N. Edwards |Shan Wang |Kelby M Kane

ResearchImmunologyMetabolismOncologyOpen Access | 10.1172/jci.insight.187531 JCI Insight. https://doi.org/10.1172/jci.insight.187531. Copyright © 2025, Edwards et al. This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

4 weeks ago | tandfonline.com | Xue Wang |Junqi Zhu |Xin Fang |Shan Wang

AbstractPreventing miners’ unsafe behavior and reducing accidents in deep coal mines are crucial. This study comprehensively used methods such as the human factor analysis and classification system for China mines (HFACS-CM) model, grounded theory and the back propagation (BP) neural network model to construct an early warning index system for miners’ unsafe behavior.

1 month ago | mdpi.com | Mengyan Li |Ruodi Ren |Kunkun Wang |Shan Wang

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1 month ago | pubs.rsc.org | Yujiao Wang |Zhiman Bai |Kun Huang |Shan Wang

The promotion of nitrate conversion into ammonia via the construction of tandem dual active sites of copper and cuprous oxide Electrocatalytic nitrate reduction reaction (eNitRR) plays an essential role in maintaining the nitrogen cycle balance and the development of carbon-free energy sources. However, the complex reduction processes results in the preparation of ammonia with low Faraday efficiency and selectivity.