Epiphany, commonly known as Three Kingsâ Day in the United States, is on January 6. It celebrates the three wise menâs visit to baby Jesus and also remembers his baptism, according to the Christian Bibleâs events.
Drive reduction theory of motivation can be simply described as you don't want to be hungry, thirsty, in pain, or horny. If your body wants something, that want is the drive. You are motivated to reduce the drive.
A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.ariable-frequency drives are also categorized by the following load torque and power characteristics: 1  Variable torque, such as in centrifugal fan, pump, and blower applications. 2  Constant torque, such as in conveyor and positive-displacement pump applications.