Guizhou Normal University

Is the accretion flow magnetically arrested in M87?

Abstract It is still debating on whether the disc is magnetically arrested in M87. We assume that a weak external magnetic field is dragged inwards by the accretion disc, which is substantially enhanced to drive strong jets near the black hole horizon via Blandford-Znajek mechani...

Biomass-Derived Cooperative Pyridinic/Pyrrolic-N Sites Enable Efficient Metal-Free N-Alkylation of Alcohols with Amines

Abstract N-alkylamines serve as essential structural units in pharmaceuticals, agrochemicals, bioactive molecules, etc. Nevertheless, their conventional syntheses predominantly rely on metal-based catalysts, which frequently encounter challenges including metal leaching, easy poi...

Capturing microclimates: 30-m downscaled climate dataset reveals fine-scale suitability patterns of invasive pests in karst landscapes

Karst landscapes are characterized by extreme topographic heterogeneity, which limits the capacity of conventional coarse-resolution climate data to resolve local microclimates, thereby introducing uncertainty into biological invasion risk assessments. This study developed a high...