A new study introduces a nonlinear energy sink (NES) based on a vibro-impact spring-pendulum, designed to efficiently absorb unwanted vibrations in mechanical systems. This device leverages the combination of impact oscillations and the nonlinear response of a spring to unidirectionally transfer energy from the primary system to an auxiliary absorber, thereby achieving effective damping.…
Researchers have demonstrated that sparse artificial neural networks can maintain robustness comparable to dense networks, even when trained with an adaptive topology.… more →
Physics World has launched an interactive slide puzzle challenging users to reconstruct an astrophysical illustration.… more →
Researchers have developed a field-validated model to predict coupler forces between wagons during freight train start-up on steep gradients.… more →
Researchers have developed a nanostructured device capable of efficiently transforming light into different frequencies, including those in the technologically important near-infra… more →
Researchers have developed amorphous silicon microspheres exhibiting photoluminescence and intrinsic whispering-gallery-mode (WGM) coupling.… more →