The Late Quaternary stratigraphy of the inner shelf along the southeastern China coast remains poorly resolved because of the reliance on sparse borehole data. Here, we integrate 54 downhole CPTu soundings with borehole logs achieving penetration of ~110 m, together with a ~78 m sediment core (LJ01) recovered from the offshore area in Northern Fujian, capturing a near-complete, high-resolution stratigraphic record. The calibra...

The core of ocean thermal energy conversion (OTEC) is the transfer and conversion of heat energy, and the heat exchanger is a key component of the heat transfer between the surface warm seawater and the lower cold seawater. The working fluid has a significant impact on the efficiency of the entire cycle in the temperature difference cycle. This study aimed to improve heat exchange efficiency. The article studied heat exchanger...