The realization of fast, simple and efficient flight attitude recognition is crucial for flight safety and control stability, but still faces challenges in new materials and technologies. Herein, a chloroplast-like selenium-doped copper sulfide@black phosphorus (CSS@BP) composite material is prepared by ultrasonic chemical synthesis using BP nanosheets to effectively absorb light energy and disperse CSS layers to promote rapid photothermal conversion, which shows the temperature change more than ≈40 °C and an excellent photothermal conversion efficiency of 68.9% at 405 nm, corresponding to the theoretical calculation results.
View Article and Find Full Text PDFThis study uses a two-step approach to construct a multi-period double-difference model and introduces a quasi-natural experiment of the Broadband China pilot policy to investigate whether household financial market participation at the urban level is affected by the digital economy, which is significant for promoting Chinese households' shift from savings to investment and alleviating the long-standing problem of insufficient household financial market participation in China. In terms of direct impact, the digital economy increases the household financial market participation rate of urban residents by 3.26%, and increases the financial market participation rate of highly financially literate households by 2.
View Article and Find Full Text PDF