Wire arc additive manufacturing (WAAM) offers distinct advantages, including low equipment cost, high deposition efficiency, and suitability for fabricating large-scale components. 921A steel (10CrNi3MoV) is widely used in the offshore industry and shipbuilding. Therefore, the application of WAAM technology to 921A steel structure manufacturing and component repair is of great significance. In order to understand the melt pool heat transfer flow and microstructural evolution during the WAAM process of 921A steel, a multi-scale model combining computational fluid dynamics (CFD) and cellular automata (CA) methods was developed. The model successfully predicted the temperature and flow fields, as well as the microstructural evolution within the deposition layer.

Researchers have developed an innovative hydrogel electrolyte that dramatically enhances the performance of sodium-zinc hybrid ion batteries. This breakthrough material offers exceptional ionic conductivity and an expanded electrochemical stability window, addressing key challenges in energy density and safety. With its impressive properties, the hydrogel electrolyte opens new possibilities for large-scale energy storage systems, promising more efficient and reliable solutions for future energy demands.

Hydrogen sourced from coke oven gas, a byproduct of steel production, is currently the most economically viable option as an input for “calcium looping”, a type of carbon capture, at least until the price of hydrogen sourced from cleanly powered electricity significantly drops, researchers have concluded.

A study in Forest Ecosystems shows that particulate organic carbon (POC) dominates surface soils, while mineral-associated organic carbon (MAOC) prevails in deeper soils across eastern China’s forests. The research highlights how microbial activity influences carbon storage, with increased microbial processing of organic carbon in warmer, lower-latitude regions.

A research team has published a review summarizing synthetic design strategies for developing high-performance photocatalysts.

A recent publication in Engineering unveils an exciting breakthrough in optical fiber communication. Scientists have developed a neuro-meta-router (NMR) that combines metasurfaces and deep-learning techniques. This innovation aims to overcome existing challenges in fiber mode demultiplexing, potentially enabling high-speed, high-capacity data transmission.

Intelligent imaging technology is rapidly transforming healthcare by enhancing the accuracy and efficiency of medical diagnostics. A recent study by Dr. Ze Zhao and their team from the Chinese Academy of Sciences in collaboration with Dr. Jianwen Gu and their team from the Ninth Medical Center of Chinese PLA General Hospital, examines its application in fields such as cardiology, neurology, and oncology. Using advanced image recognition, this innovation accelerates disease detection and supports clinical decision-making. The findings underline the technology’s potential to revolutionize medical diagnostics and improve patient outcomes globally.