BASEL, Switzerland, April 24 -- Buildings, a peer-reviewed open access journal that focuses on building science, building engineering and architecture design, published research articles, including the following topics, in its May 2023 edition: Articles: * Time-Varying Evolution Behaviors of Steel-Concrete Composite Girders with Differentiated Connectors * On the Use of Waste Materials for Thermal Improvement of 3D-Printed Block--An Experimental Comparison * Assessment of Flexural Performanc  more

WASHINGTON, April 24 -- NASA Inspector General issued the following audit report (No. IG-23-010) on March 20, 2023, regarding the management of Radioisotope Power Systems Program. Here are excerpts: * * * Results in Brief WHY WE PERFORMED THIS AUDIT All space exploration missions require a power source to enable the spacecraft to perform essential functions after launch such as operating scientific instruments, adjusting spacecraft position and trajectory, and sending data back to Earth. So  more