The innovative dual-serrated structure solar cell developed by Huazhong University of Science and Technology reduces reflection losses by 18.34% through a "photon maze" design, potentially boosting conversion efficiency to 31.13% and opening new pathways to unlock efficiency enhancements in tandem perovskite solar cells.

The combination of air pollution, dense urban development and limited green spaces increases the risk of asthma in both children and adults. This is shown by a new study conducted as part of a major EU collaboration led by researchers from Karolinska Institutet.

 Assistant Professor Daiki Tajiri and Professor Shozo Kawamura of the Machine Dynamics Laboratory, Technology Department of Mechanical Engineering, Toyohashi University have developed a simple method that identifies the rigidity deterioration of a building’s columns based on only the frequency response of force measured using an inertial shaker installed on the top floor of the building. This method enables the diagnosis of abnormalities in the entire building without requiring acceleration sensors and other equipment on multiple floors, as in the case of conventional methods; in fact, it requires only force sensors. The research results are published in the international academic journal Mechanical Systems and Signal Processing.