Gating circuit that produces a prescribed output condition when several possible combined input signals are applied; exhibits the characteristics of the AND gate and the OR gate.
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Related Terms |
PLENUM CHAMBER
An enclosed space in which a plenum condition exists; air is forced into it for slow distribution through ducts.
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OVERCURING
A condition resulting from vulcanizing longer than necessary to achieve full development of physical strength; causes softness or brittleness and impaired ageresisting quality of the material.
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OFF-LINE
1. A condition existing when the drive rod of the drill swivel head is not centered and parallel with the borehole being drilled. 2. A borehole that has deviated from its intended course. 3. A condition existing wherein any linear excavation (shaft, drift, borehole) deviates from a previously determined or intended survey line or course. 4. State in which an equipment or subsystem is in standby, maintenance, or mode of operation other than online.
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MONITOR
1. An instrument used to measure continuously or at intervals a condition that must be kept within prescribed limits, such as radioactivity at some point in a nuclear reactor, a variable quantity in an automatic process control system, the transmissions in a communication channel or bank, or the position of an aircraft in flight. 2. To use meters or special techniques to measure such a condition. 3. A person who watches a monitor.
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LIMIT STATE
The condition beyond which a structure or a structural member is deemed unsafe due to one or more loads or load effects.
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ISOTHERMAL EQUILIBRIUM
The condition in which two or more systems are at the same temperature, so that no heat flows between them.
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IRREVERSIBLE ENERGY LOSS
Energy transformation process in which the resultant condition lacks the driving potential needed to reverse the process; the measure of this loss is expressed by the entropy increase of the system.
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INTERMITTENT OPERATION
Condition in which a device operates normally for a time, then becomes defective for a time.
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HYDROSTATIC STRESS
The condition in which there are equal compressive stresses or equal tensile stresses in all directions, and no shearstressesonanyplane.
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ANAEROBIC
A condition in which 'free' or dissolved oxygen is not present in the water.
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