Abstract: Orthogonal frequency division multiplexing with index modulation (OFDM-IM) is a promising multi-carrier technique for next generation wireless communication networks. In this paper, we ...

Abstract: Low-frequency characteristics serve as primary metrics for evaluating the acoustic performance of modern microspeakers. However, conventional microspeakers exhibit flat low-frequency in-ear ...

As renewable energy installations multiply, the first generation of solar panels, wind turbine blades, and lithium-ion batteries is reaching the end of its lifespan. Police in Finland arrest 2 members ...

PolyGone, a startup that creates microplastic filtration systems, is helping wastewater treatment centers and industries reduce the amount of pollution they release into our oceans. The startup was ...

The origin of life is one big chemical Catch-22. It always has been. To get life started, you need a genetic molecule—something like RNA or DNA. That’s needed to store information about how to ...

Sewing machines looked simple, but their inner workings were anything but. Engineers had to invent an entirely new way of sewing to make machines possible. Tiny mechanical movements worked in perfect ...