Tessellations aren’t just eye-catching patterns—they can be used to crack complex mathematical problems. By repeatedly ...

Abstract: In this brief, a frequency and pattern reconfigurable antenna using double layer petal shaped parasitic structure loaded with PIN diodes is proposed. The double layer parasitic structure ...

Abstract: This study presents a comprehensive mathematical model for analyzing optimum frequency hop (FH) patterns (OFHPs) derived from two-dimensional circular shifts applied to a Golomb Costas array ...

Martin Collett covers his house from top to toe in thousands of Christmas lights A group of neighbours has raised more than £20,000 for charity after attracting many visitors to their annual Christmas ...

A low pulse on this pin (below 1/3 of VCC) sets the internal flip-flop and makes the output go HIGH. When the voltage on this pin reaches 2/3 of VCC, it resets the flip-flop, and the output goes LOW.

LED face masks offer a host of transformative skin benefits—they can reduce redness, treat acne, and minimize the look of fine lines, wrinkles, and discoloration. Even better, they don’t require a lot ...