Aiming at the issues of heavy weight and insufficient structural performance of optical instrument supporting structures in extremely large telescopes, the Wide-Field Optical Spectrograph (WFOS) of ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Felix Candela. Simple concrete shell ...

Yolk-shell nanocrystals are one-of-a-kind materials with intriguing structural features, including a permeable shell, inner space, and moveable yolk. Depending on the materials that are used in ...

Thin shell structures are widely used in high-performance engineering due to their favorable strength-to-weight characteristics and capacity for distributed load-bearing. However, traditional ...

A team of researchers from Penn, Rensselaer Polytechnic Institute, and Queen’s University published a study on Tuesday announcing they had discovered the first evidence of “shell structures” in the ...