For a system whose front-end is a boost type converter, a digital band-stop filter (BSF) with a center frequency of 120 Hz could be introduced in the voltage sampling loop to suppress the SHC. However ...

The frequency illusion, also called the Baader-Meinhof phenomenon, is a cognitive bias in which someone learns a novel word or concept—and then “suddenly” encounters it everywhere ...

A Washington, D.C.-area helicopter pilot says Army Black Hawk was flying published route and on appropriate radio frequency.

People with first-degree relatives who were repeatedly diagnosed with colorectal polyps appeared at increased risk for ...

The FiiO FT1 Pro planar magnetic open-back headphones have raised the bar for low-end performance, redefining what's ...

Ridership per capita in Omaha ranked 17th among 20 cities, and about half the average of like-sized peers. The buses running ...

NASA created a haunting audio clip of sound waves rippling out of a supermassive black hole, located 250 million light-years away.

Anybody can develop high frequency hearing loss, but it becomes more common with age. Exposure to loud sounds or high frequency sounds are common causes of ear damage in younger people.

A medical transport jet transporting a child, her mother and four others crashed into a Philadelphia neighborhood shortly ...