Suction bucket foundations provide an efficient foundation solution for offshore wind turbines, but improving their uplift resistance in soft clay remains a practical challenge. Vacuum preloading has been an effective means to enhance soft clay engineering properties, yet its offshore application is constrained by the difficulty of maintaining a reliable underwater seal. This study proposes soil-plug vacuum preloading, in whic...

Hypoxia frequently triggers mass mortality events in pearl oysters during the summer months. Hypoxic preconditioning (HP), repeated exposure to sublethal low-oxygen conditions, has been proposed as a potential strategy to enhance stress resistance. Here, we investigated how HP affects hypoxia tolerance in the pearl oyster Pinctada fucata martensii, with emphasis on host apoptotic and immune regulation and the gut microbiota. P...

The coupling of physical transport and phase-transfer processes represents a fundamental mechanism governing metal cycling in estuarine systems under tidal oscillations. Taking Quanzhou Bay as a model system, we conducted continuous observations and sample collection at the river channel (Q1), the turbidity maximum zone (Q2), and the outer bay channel (Q3). The metals (Al, Ti, Ba, Cu, Mn, and Zn) were measured by ICP-MS to sys...