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Sökning: WFRF:(Wang Yuemin)

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1.
  • Li, Xuechao, et al. (författare)
  • Direct transformation of n-alkane into all-trans conjugated polyene via cascade dehydrogenation
  • 2021
  • Ingår i: National Science Review. - : Oxford University Press. - 2095-5138 .- 2053-714X. ; 8:10
  • Tidskriftsartikel (refereegranskat)abstract
    • Selective C(sp(3))-H activation is of fundamental importance in processing alkane feedstocks to produce high-value-added chemical products. By virtue of an on-surface synthesis strategy, we report selective cascade dehydrogenation of n-alkane molecules under surface constraints, which yields monodispersed all-trans conjugated polyenes with unprecedented length controllability. We are also able to demonstrate the generality of this concept for alkyl-substituted molecules with programmable lengths and diverse functionalities, and more importantly its promising potential in molecular wiring.
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2.
  • Wang, Lu, et al. (författare)
  • Historical Soil Moisture Variability in High-Latitude Humid Regions: Insights From a Paleoclimate Data-Model Comparison
  • 2024
  • Ingår i: EARTHS FUTURE. - 2328-4277. ; 12:5
  • Tidskriftsartikel (refereegranskat)abstract
    • Understanding historical soil moisture (SM) variations and their relationship with temperature in high-latitude humid regions is essential for predicting hot droughts under widespread warming. This paper presents the first-ever annual-resolution summer surface SM reconstruction (1736-2006 CE) in Sweden, located in northern Europe (NE). The reconstruction utilizes the paleoclimate proxy, tree-ring delta O-18, which exhibits a strong correlation with reanalysis SM data during 1948-2007 CE (r = -0.67, p < 0.001). In contrast to an unprecedented trend suggested by previous studies, our reconstruction exhibits a wetting trend in NE since the 1960s falling within the historical spectrum of trends. Both reanalysis SM data and our reconstruction show significant negative correlations with temperature at interannual timescales. However, Coupled Model Intercomparison Project Phase 6 climate models failed to capture the significant SM-temperature relationship during the historical (1850-1947 CE) and observation periods (1948-2006 CE). This proxy-model comparison represents a critical step toward enhancing our understanding of SM dynamics and the reliability of SM projections in high-latitude humid regions.
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