Xiaolong Li

1 month ago | science.org | Varun Arvind |Emanuel J. Novais |Jonathan Oesterle |Jie Tu |Hangren Li |Xudong Liu | +18 more

AbstractDouble-perovskite films have been extensively studied in multifunctional fields due to their modifiability. Here, a controlled process strategy to induce chemical strain and anomalous Poisson deformation is proposed for perovskite-based films. The chemical negative strain in the local-ordering BiSmFe2O6 double-perovskite films can be regulated by oxygen engineering to cause the effectively tunable bandgap.

Feb 25, 2025 | mdpi.com | Xiang Chen |Xiaolong Li |Yilu Feng

1. IntroductionMaglev trains represent a new type of urban rail transit system, and their systems’ safety and reliability are of great significance for ensuring the safety of people’s lives and property, directly influencing the sustainable development of maglev transportation commercialization. As train equipment becomes increasingly information-based and complex, there are higher demands for risk analysis concerning maglev trains.

Feb 20, 2025 | nature.com | Maodian Liu |Robert Mason |Thomas Bianchi |Qianru Zhang |Xiaolong Li |Ruoyu Sun | +6 more

The Southern Ocean, one of Earth’s most productive areas, is widely recognized as a major sink for atmospheric carbon and mercury, tightly coupling primary production with the sedimentary sequestration of these elements. The impacts of climate warming on these processes, however, remain unclear. Here, we utilize 20 sediment cores from the Ross Sea, a representative ice-shelf sea in West Antarctica, to examine how Holocene warming and extensive glacial retreat influenced carbon and mercury sequestration. We find that organic carbon (OC) burial has been relatively constant over the past 12,000 years, whereas mercury burial in the Ross Embayment and open ocean exhibited three- and eightfold increases, respectively. Carbon isotopes and accumulation profiles suggest warming boosted glacial- and terrestrial-derived OC inputs to the ocean, while trace elements and biomarkers reveal a declining contribution offshore. Biomarker ratios further indicate greater remineralization of this OC in the open ocean. Consequently, enhanced OC degradation, coupled with rising external mercury inputs, drives mercury enrichment in marine sediments before reaching the seafloor. These findings imply that ongoing warming could trigger a positive feedback loop, accelerating OC degradation into CO2 and amplifying the impacts of anthropogenic mercury on Southern Ocean ecosystems. This study reveals that Holocene warming and glacial retreat in West Antarctica reduced carbon sequestration but enhanced mercury burial in Ross Sea sediments, suggesting future warming could further accelerate carbon loss and mercury accumulation.

Dec 5, 2024 | mdpi.com | Shuyan Wang |Xiaolong Li

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Oct 3, 2024 | mdpi.com | Zhongbin Sun |Xiaolong Li |Yiran Li |Yue Ma

All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.