frequency study การใช้

• Brain-wave frequency studies suggest that the scent of lavender increases alpha waves at the back of the brain, associated with a more relaxed state, and jasmine increases beta waves in the front of the head, associated with a more alert state,
• Temperature-frequency studies showed that the transition temperature is largely frequency-independent, suggesting that this transition results from a motion of a small number of atoms; it has been suggested that this is the result of the rotation of the phenyl group around the main chain.
• The first wave was the study of clues, pioneered by Scotland Yard in the 19th century, the second wave was the study of crime itself ( frequency studies and the like ), and this third wave is the study of the psyche of the criminal.