Known for hot temperatures, Southern California and the rest of the Southwest United States are undergoing a cold snap that has set records in many areas throughout the region.
Periodogram is the spectrum of a set of time signal usually obtained by fast Fourier transform (FFT). It usually shows frequency as x-axis, and magnit... This page may be out of date.
An arthrogram is a type of X-ray in which a contrast material such as a dye, air or both is injected into a joint. Arthrography is used so that your doctor or surgeon can see the soft tissues of the joint (tendons, ligaments, muscles and cartilage) better. These things cannot be seen on a standard X-ray. An arthrogram is done to: