In the newest PNAS study, scientists examined a remarkable fossil specimen that had feathers on all four limbs, somewhat resembling a bi-plane.

This paper expounds the significance of bi-plane heating preparation in the electricity automation, probes into the condition and style of the application of bi-plane heating preparation technology.

The IR detector contains a focus plane array (FPA) which is fabricated into an array of bi-material microcantilevers in the form of single-layer membranous structure without Si-base.