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The original definition of an "impulse purchase" was a purchase that unplanned by the consumer that came out of the DuPont Consumer Buying Habits Study that occurred from 1948 to 1965. The definition of impulse buying was then updated, referring to the intense urge that a consumer feels when they want to buy an item right then, often causing ...
The impulse delivered by a varying force is the integral of the force F with respect to time: =. The SI unit of impulse is the newton second (N⋅s), and the dimensionally equivalent unit of momentum is the kilogram metre per second (kg⋅m/s).
The impulse response from a simple audio system. Showing, from top to bottom, the original impulse, the response after high frequency boosting, and the response after low frequency boosting. In signal processing and control theory , the impulse response , or impulse response function ( IRF ), of a dynamic system is its output when presented ...
The impulse response and step response are transient responses to a specific input (an impulse and a step, respectively). In electrical engineering specifically, the transient response is the circuit’s temporary response that will die out with time. [ 1 ]
Impulse (Psionex), a Marvel Comics character by Fabian Nicieza and Mark Bagley; Impulse (DC Comics), an identity shared by three comic book superheroes published by DC Comics: Bart Allen, Kent Shakespeare, and Iris West; Science Fantasy, which was published for a while under the titles Impulse and SF Impulse
An impulse is a wish or urge, particularly a sudden one. It can be considered as a normal and fundamental part of human thought processes, but also one that can become problematic, as in a condition like obsessive-compulsive disorder, [24] [unreliable medical source?] borderline personality disorder, attention deficit hyperactivity disorder, or in fetal alcohol spectrum disorders.
Impulse-control disorder (ICD) is a class of psychiatric disorders characterized by impulsivity – failure to resist a temptation, an urge, or an impulse; ...
The impulse response can be computed to any desired degree of accuracy by choosing a suitable approximation for δ, and once it is known, it characterizes the system completely. See LTI system theory § Impulse response and convolution. The inverse Fourier transform of the tempered distribution f(ξ) = 1 is the delta function.