As the disk rotates faster, the pulse frequency increases accordingly. Since the relationship between pulse frequency and rotational velocity is linear, it is a simple matter to use the pulse frequency as an indication of speed. The output pulses can be transformed into speed units by measuring their frequency, and then multiplying the frequency by an appropriate scale factor.
The life expectancy of a person with dementia is unpredictable, and the disease can progress for up to around 10 years. It is estimated that a third of people with dementia at any one time will be in the later stages of the disease.
When a friend or relative gets diagnosed with Alzheimerâs Disease or some other form of dementia, the care giver or the individual himself may wonder how long he can live while suffering from dementia. The answer to this question is not as easy as it seems.