The plasma frequency represents a plasma oscillation resonance or plasmon. This has important applications in magnetic resonance imaging. The ion was characterized by high resolution nuclear magnetic resonance. This phenomenon is used in nuclear magnetic resonance. Purified compounds can be identified by the means of nuclear magnetic resonance. MRI is a medical application of nuclear magnetic resonance (NMR). A microarray of nuclear magnetic resonance microcoils is under development. This phenomenon is known as electron spin resonance (ESR). Standing waves can be mechanically induced into a solid medium using resonance. Trials of pigs using acoustic resonance technology have been reported. This is precisely the result that the drawing of resonance structures would predict. This is due to the effect of seashell resonance. This is called antiresonance, which has the opposite effect of resonance. These have a 7&colon;4 orbital resonance with Jupiter. This is an example of stochastic resonance.