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An X-ray filter (or compensating filter) is a device placed in front of an X-ray source in order to reduce the intensity of particular wavelengths from...

metal sheet, often of aluminium, called an X-ray filter, is usually placed over the window of the X-ray tube, absorbing the low energy part in the spectrum...

to improve the SNR of X-ray observations. Matched filtering is a demodulation technique with LTI (linear time invariant) filters to maximize SNR. It was...

Dreams" on the then upcoming Filter album Anthems for the Damned. Army of Anyone, a second supergroup side project with drummer Ray Luzier and Stone Temple...

Filter feeders are aquatic animals that acquire nutrients by feeding on organic matters, food particles or smaller organisms (bacteria, microalgae and...

cinematography, a filter is a camera accessory consisting of an optical filter that can be inserted into the optical path. The filter can be of a square...

An anti-aliasing filter (AAF) is a filter used before a signal sampler to restrict the bandwidth of a signal to satisfy the Nyquist–Shannon sampling theorem...

practice, the mean X-ray energy is about one-third of the maximum energy. Beam quality and hardness may be improved by X-ray filters, which improves the...

optical filter that lets light waves of a specific polarization pass through while blocking light waves of other polarizations. It can filter a beam of...

radiography, an X-ray tube generates a beam of X-rays, which is aimed at the patient. The X-rays that pass through the patient are filtered through a device...

neutral-density filter, also known as a graduated ND filter, split neutral-density filter, or just a graduated filter, is an optical filter that has a variable...

mixed-signal system (analog and digital), a reconstruction filter, sometimes called an anti-imaging filter, is used to construct a smooth analog signal from a...

source that runs with ~14 kW of e-beam power. X-rays are generally filtered (by use of X-ray filters) to a single wavelength (made monochromatic) and...

A diesel particulate filter (DPF) is a device designed to remove diesel particulate matter or soot from the exhaust gas of a diesel engine. Wall-flow diesel...

the mouth closes.: 14  Manta rays and devil rays are the only ray species that have evolved into filter feeders. Manta rays have dorsal slit-like spiracles...

An inferior vena cava filter is a medical device made of metal that is implanted by vascular surgeons or interventional radiologists into the inferior...

An astronomical filter is a telescope accessory consisting of an optical filter used by amateur astronomers to simply improve the details and contrast...

Earlier assumptions about exclusively filter feeding were based on surface observations. The giant oceanic manta ray sometimes visits a cleaning station...

The source–filter model represents speech as a combination of a sound source, such as the vocal cords, and a linear acoustic filter, the vocal tract. While...

American singer, musician and songwriter. He is the frontman for the rock band Filter and a founding member of the supergroups Army of Anyone and The Damning...