A NIMS research team has developed an approach capable of accurately and  short-timeframe predicting the degradation behavior of electrocatalysts used in water electrolyzers by employing data assimilation—a method commonly employed in weather forecasting. After analyzing only 300 hours of experimental data, this approach accurately predicted the degradation of an electrocatalytic material occurring after approximately 900 hours of water electrolysis. This approach is able to accelerate and simplify the comparison of degradation properties among various electrocatalytic materials, potentially facilitating investigations into their degradation mechanisms and expediting the development of more efficient, economical and durable electrocatalytic materials.

NATIONAL HARBOR, Md. — The U.S. Naval Research Laboratory (NRL) highlighted its latest advancements in defense technology at the Sea-Air-Space Conference and Exposition, held April 7-9, 2025, at the Gaylord National Resort & Convention Center. As the premier maritime exposition in the United States, Sea-Air-Space provided an ideal platform for NRL to demonstrate its innovative contributions to national defense.

Colder temperatures are linked with increased risk of diarrhea among Rohingya refugees in Bangladesh, emphasizing the need for climate-sensitive health strategies in refugee settings.

In a paper published in National Science Review, a Chinese team of scientists conducted an analysis on how changes in Arctic snow and ice cover affect cloud short-wave radiative effects, using satellite observations and climate model data. The study found that even under conditions where cloud properties remain unchanged, the melting of snow and ice can trigger an enhanced clouds’ short-wave cooling effect. The enhanced cooling effect can partially slow down the melting process, while it cannot reverse the overall decreasing trend of ice and snow.