Da Wu

Jun 13, 2024 | science.org | Juhyuk Park |Yang Liu |Da Wu

Editor’s summaryWater transport can drastically change under different conditions and can even achieve superlubricity, meaning that friction virtually vanishes. The microscopic origin of this counterintuitive property is unclear. Using a cryogenic atomic force microscopy technique, Wu et al. directly imaged bilayer hexagonal two-dimensional water islands on homopolar graphene and heteropolar hexagonal boron nitride monolayers and measured their friction forces as a function of island area.

Jun 26, 2023 | mdpi.com | Guoqing Zhou |Da Wu |Xiao Zhou |Qiang Zhu

Abstract:The fast development of urban built-up areas in China is causing many problems, such as pollution, congestion, etc. How to effectively evaluate the coordination between urban areas and environmental problems has been attracting many scholars worldwide. This paper intends to discover this “secretary” through investigating the built-up areas and their accompanied economic and environmental factors over almost 30 years (1992 to 2020) in Nanjing, China.