HARMONICS A characteristic of energy generated by a vibration is that there will be a number of frequencies appearing up the frequency spectrum at multiples of the fundamental frequency. These are called Harmonics. The fundamental frequency is also the first harmonic.
In North Carolina, a DWI is usually a misdemeanor crime. However, if you have three or more DWI's in the past 10 years, you commit the felony offense of habitual impaired driving (Habitual DWI). Conviction of a felony Habitual DWI results in at least 12 months incarceration and a permanent license revocation.
Some DUIs are misdemeanors. Other DUIs are felonies. The difference between the two can be dramatic, with felonies often leading to longer jail times, higher fines and generally more severe penalties. Generally, a DUI is a misdemeanor, but certain factors can cause it to be a felony crime.