In the past few years, colloidal quantum dots – solution-processed semiconducting nanocrystals – have emerged as an alternative for mainstream consumer electronics. While toxic heavy-metals, such as ...

The frequency regime lying in the shortwave infrared (SWIR) has very unique properties that make it ideal for several ...

With the audio signal fed to HDSDR, [Aniss] was able to pick up a shortwave radio broadcaster. While this is by no means a high-performance receiver, building an SDR on a breadboard is still a ...

The frequency regime lying in the shortwave infrared (SWIR) has very unique properties that make it ideal for several applications, such as being less ...

AM waves, which have a lower frequency, are attenuated when they are refracted from the ionosphere or the Earth’s surface, resulting in shorter travel distances than shortwaves. Shortwave radio ...

Radio transmission in the 1.7-30 MHz frequency range worldwide. Like AM radio, shortwave signals reflect back from the ionosphere and follow the curvature of the earth. As a result, shortwave (SW ...

PITTSBURGH, March 28, 2025 /PRNewswire/ -- "I wanted to create a hat or hat liner to protect the wearer from potentially ...