Matches in DBpedia 2016-04 for { <http://wikidata.dbpedia.org/resource/Q918004> ?p ?o }
- Q918004 subject Q5881968.
- Q918004 subject Q7215638.
- Q918004 subject Q8411440.
- Q918004 abstract "Positive feedback is a process that occurs in a feedback loop in which the effects of a small disturbance on a system include an increase in the magnitude of the perturbation. That is, A produces more of B which in turn produces more of A. In contrast, a system in which the results of a change act to reduce or counteract it has negative feedback. Both concepts play an important role in the field of Cybernetics.Mathematically, positive feedback is defined as a positive loop gain around a closed loop of cause and effect. That is, positive feedback is in phase with the input, in the sense that it adds to make the input larger.Positive feedback tends to cause system instability. When the loop gain is positive and above 1, there will typically be exponential growth, increasing oscillations, chaotic behavior or other divergences from equilibrium. System parameters will typically accelerate towards extreme values, which may damage or destroy the system, or may end with the system latched into a new stable state. Positive feedback may be controlled by signals in the system being filtered, damped, or limited, or it can be cancelled or reduced by adding negative feedback.Positive feedback is used in digital electronics to force voltages away from intermediate voltages into '0' and '1' states. On the other hand, thermal runaway is a positive feedback that can destroy semiconductor junctions. Positive feedback in chemical reactions can increase the rate of reactions, and in some cases can lead to explosions. Positive feedback in mechanical design causes tipping-point, or 'over-centre', mechanisms to snap into position, for example in switches and locking pliers. Out of control, it can cause bridges to collapse. Positive feedback in economic systems can cause boom-then-bust cycles. A familiar example of positive feedback is the loud squealing or howling sound produced by audio feedback in public address systems: the microphone picks up sound from its own loudspeakers, amplifies it, and sends it through the speakers again.".
- Q918004 thumbnail Herdwick_Stampede.jpg?width=300.
- Q918004 wikiPageWikiLink Q101038.
- Q918004 wikiPageWikiLink Q101313.
- Q918004 wikiPageWikiLink Q102014.
- Q918004 wikiPageWikiLink Q1030329.
- Q918004 wikiPageWikiLink Q1051241.
- Q918004 wikiPageWikiLink Q1052379.
- Q918004 wikiPageWikiLink Q1063.
- Q918004 wikiPageWikiLink Q1076369.
- Q918004 wikiPageWikiLink Q1098652.
- Q918004 wikiPageWikiLink Q11085.
- Q918004 wikiPageWikiLink Q1127660.
- Q918004 wikiPageWikiLink Q11337567.
- Q918004 wikiPageWikiLink Q1160121.
- Q918004 wikiPageWikiLink Q1163709.
- Q918004 wikiPageWikiLink Q116434.
- Q918004 wikiPageWikiLink Q1165103.
- Q918004 wikiPageWikiLink Q12078.
- Q918004 wikiPageWikiLink Q123637.
- Q918004 wikiPageWikiLink Q124164.
- Q918004 wikiPageWikiLink Q127006.
- Q918004 wikiPageWikiLink Q1271153.
- Q918004 wikiPageWikiLink Q12870.
- Q918004 wikiPageWikiLink Q12908.
- Q918004 wikiPageWikiLink Q1307489.
- Q918004 wikiPageWikiLink Q130983.
- Q918004 wikiPageWikiLink Q1321905.
- Q918004 wikiPageWikiLink Q1337985.
- Q918004 wikiPageWikiLink Q13581044.
- Q918004 wikiPageWikiLink Q1369234.
- Q918004 wikiPageWikiLink Q137973.
- Q918004 wikiPageWikiLink Q138372.
- Q918004 wikiPageWikiLink Q1427217.
- Q918004 wikiPageWikiLink Q1430184.
- Q918004 wikiPageWikiLink Q14599311.
- Q918004 wikiPageWikiLink Q152452.
- Q918004 wikiPageWikiLink Q1585955.
- Q918004 wikiPageWikiLink Q15873.
- Q918004 wikiPageWikiLink Q1610358.
- Q918004 wikiPageWikiLink Q1610863.
- Q918004 wikiPageWikiLink Q1639963.
- Q918004 wikiPageWikiLink Q166314.
- Q918004 wikiPageWikiLink Q167336.
- Q918004 wikiPageWikiLink Q167980.
- Q918004 wikiPageWikiLink Q16883749.
- Q918004 wikiPageWikiLink Q16985269.
- Q918004 wikiPageWikiLink Q169960.
- Q918004 wikiPageWikiLink Q170451.
- Q918004 wikiPageWikiLink Q170475.
- Q918004 wikiPageWikiLink Q171183.
- Q918004 wikiPageWikiLink Q173156.
- Q918004 wikiPageWikiLink Q173183.
- Q918004 wikiPageWikiLink Q174320.
- Q918004 wikiPageWikiLink Q174925.
- Q918004 wikiPageWikiLink Q1751296.
- Q918004 wikiPageWikiLink Q176300.
- Q918004 wikiPageWikiLink Q178577.
- Q918004 wikiPageWikiLink Q178828.
- Q918004 wikiPageWikiLink Q179057.
- Q918004 wikiPageWikiLink Q179217.
- Q918004 wikiPageWikiLink Q180537.
- Q918004 wikiPageWikiLink Q183406.
- Q918004 wikiPageWikiLink Q183635.
- Q918004 wikiPageWikiLink Q183759.
- Q918004 wikiPageWikiLink Q185553.
- Q918004 wikiPageWikiLink Q187082.
- Q918004 wikiPageWikiLink Q190070.
- Q918004 wikiPageWikiLink Q190837.
- Q918004 wikiPageWikiLink Q192311.
- Q918004 wikiPageWikiLink Q194277.
- Q918004 wikiPageWikiLink Q194404.
- Q918004 wikiPageWikiLink Q1969661.
- Q918004 wikiPageWikiLink Q202957.
- Q918004 wikiPageWikiLink Q205178.
- Q918004 wikiPageWikiLink Q205949.
- Q918004 wikiPageWikiLink Q207527.
- Q918004 wikiPageWikiLink Q210973.
- Q918004 wikiPageWikiLink Q212354.
- Q918004 wikiPageWikiLink Q219407.
- Q918004 wikiPageWikiLink Q2304620.
- Q918004 wikiPageWikiLink Q237525.
- Q918004 wikiPageWikiLink Q249997.
- Q918004 wikiPageWikiLink Q249998.
- Q918004 wikiPageWikiLink Q25805.
- Q918004 wikiPageWikiLink Q259838.
- Q918004 wikiPageWikiLink Q261937.
- Q918004 wikiPageWikiLink Q2702288.
- Q918004 wikiPageWikiLink Q271226.
- Q918004 wikiPageWikiLink Q2747831.
- Q918004 wikiPageWikiLink Q277954.
- Q918004 wikiPageWikiLink Q283811.
- Q918004 wikiPageWikiLink Q2997621.
- Q918004 wikiPageWikiLink Q3038235.
- Q918004 wikiPageWikiLink Q3072260.
- Q918004 wikiPageWikiLink Q311359.
- Q918004 wikiPageWikiLink Q313614.