static


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static,

term formerly use to describe electrical noisenoise,
any signal that does not convey useful information. Electrical noise consists of electrical currents or voltages that interfere with the operation of electronic systems.
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 in radio reception, especially noise that originates outside a transmitter and receiver, e.g., in the atmosphere or in human-made devices. In general, a frequency modulationmodulation,
in communications, process in which some characteristic of a wave (the carrier wave) is made to vary in accordance with an information-bearing signal wave (the modulating wave); demodulation is the process by which the original signal is recovered from the wave
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 (FM) radio receiver is less susceptible to such noise than one using amplitude modulation (AM). Many receivers are equipped with devices, such as automatic limiting and silencing circuits, to lessen the effect of such noise on reception.

static

[′stad·ik]
(communications)
A hissing, crackling, or other sudden sharp sound that tends to interfere with the reception, utilization, or enjoyment of desired signals or sounds.
(physics)
Without motion or change.

static

i. Still, at rest, not moving, as in static pressure, static load, etc.
ii. Radio or other communication interference mainly the result of the discharge of electricity and appearing as background noise. It consists of amplitude-oriented spurious electromagnetic waves ranging in frequencies from a few hundred hertz to several thousand kilohertz. Atmospheric static is present in cumulonimbus clouds, thunderstorms, and precipitation. Lightning discharge is a most common source of static.
iii. A structural test with the application of a single increasing load done while the structure is at rest.

static

1. (of a weight, force, or pressure) acting but causing no movement
2. of or concerned with forces that do not produce movement
3. relating to or causing stationary electric charges; electrostatic
4. of or concerned with statics
5. Computing (of a memory) not needing its contents refreshed periodically
6. electric sparks or crackling produced by friction

static

(1) Fixed and unchanging. Contrast with dynamic.

(2) Interference or noise in a signal as in the unwanted disturbance in a radio signal. See noise.
References in periodicals archive ?
After a few minutes of operation, Bob noticed that a significant static charge developed.
Where flammable and potentially explosive atmospheres exist, the ATEX 137 European directive, implemented as DSEAR in the UK, places a mandatory obligation on employers to: "consider and eliminate possible sources of static electricity".
More precisely, when a static sensor node detects an event, it broadcasts a notification message throughout the entire sensor network so as to build a navigation tree rooted at that sensor node.
During their daily work at the mobile and static clinics, the health team members offered many services to the clinic attendants other than family planning services, so, only a portion of their salaries were allocated to family planning services.
Static wicks are bonded to the metal structure of the airframe.
Since the goal of this paper is to evaluate reverse relief airflow and building static pressure, to simplify the simulations, only the overlapping action between the OAD and RCD is discussed in the paper.
The new feedback-enabled systems aim to provide high accuracy static control in production environments with the ability to output the voltage level for remote monitoring.
* larger D-rings to accommodate the universal static line snap hook.
The reason for this is that the static charge is in the airborne dust particles.
Instead, as the aircraft climbs, the airspeed indicator only senses reduced static pressure and begins acting as an altimeter, reacting to the increased altitude and reduced ambient pressure by displaying ever-higher airspeed.
Static electricity has kindled scientists' interest for centuries, yet how exactly friction creates the electrical charge has remained a mystery, says chemical engineer Daniel Lacks of Case Western Reserve University in Cleveland.
The hotel's demi chef de partie, Glen Redison received the gold medal in the Individual Pastry Static category for his entry 'Dessert Symphony.'