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Second, if the head experiences sustained accelerations on the order of 10 – 20 seconds, the hair follicles return to the “zero” or vertical position and the brain interprets this as the acceleration ceasing. Additionally, there is a lower acceleration threshold of about 2 degrees per second that the brain cannot perceive.
Degrees per second, a unit for measuring angular velocity; Direct Print Standard, part of PictBridge standard; Display PostScript, an on-screen display system; Dynamic positioning system, a means to automatically maintain a ship's position and heading by using her own propellers and thrusters; DPS protocol, a quantum key distribution protocol
Originally the second of three degrees in sequence – Legum Baccalaureus (LL.B., last conferred by an American law school in 1970); LL.M.; and Legum Doctor (LL.D.) or Doctor of Laws, which has only been conferred in the United States as an honorary degree but is an earned degree in other countries. In American legal academia, the LL.M. was ...
The DP training and certification scheme is operated by The Nautical Institute (NI). The NI issue logbooks to trainees, they accredit training centres and control the issuance of certification. With ever more DP ships and with increasing manpower demands, the position of DPO is gaining increasing prominence.
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The radian per second (symbol: rad⋅s −1 or rad/s) is the unit of angular velocity in the International System of Units (SI). The radian per second is also the SI unit of angular frequency (symbol ω, omega). The radian per second is defined as the angular frequency that results in the angular displacement increasing by one radian every ...
The angular displacement (symbol θ, ϑ, or φ) – also called angle of rotation, rotational displacement, or rotary displacement – of a physical body is the angle (in units of radians, degrees, turns, etc.) through which the body rotates (revolves or spins) around a centre or axis of rotation.
Angular acceleration has physical dimensions of angle per time squared, measured in SI units of radians per second squared (rad ⋅ s −2). In two dimensions, angular acceleration is a pseudoscalar whose sign is taken to be positive if the angular speed increases counterclockwise or decreases clockwise, and is taken to be negative if the ...