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单词 self-bias
释义

self-biasn.

Brit. /ˌsɛlfˈbʌɪəs/, U.S. /ˌsɛlfˈbaɪəs/
Origin: Formed within English, by derivation. Etymons: self- prefix, bias n.
Etymology: < self- prefix + bias n.With sense 2 compare slightly earlier self-biased adj. 2, self-biasing adj.
1. A bias towards oneself; predisposition to favour oneself or one's own views, or to pursue one's own advantage. In quot. 1657 as part of an extended metaphor; cf. bias n. 2.
ΘΚΠ
society > morality > moral evil > evil nature or character > lack of magnanimity or noble-mindedness > self-interest > [noun]
proper exquisitionc1430
privatenessa1586
interest1622
self-concernment1644
self-interest1649
self-bias1657
self-concern1670
interess1678
self-reference1802
1657 R. Hunt Bow of Jonathan 18 Sordid considerations that are won and lost for a triflle [sic], & with the turning of an hand; this is friendship at bowles with a self-bias.
1752 J. Byrom Enthusiasm 11 Ev'ry created, understanding Mind Moves as its own Self-bias is inclin'd.
1886 New Princeton Rev. Mar. 208 In weighing our own characters we need to use great caution; for we approach the scales obliquely, under stress of self-bias.
1915 C. McAlpin Hermaia xxxiii. 278 In the qualitative ideas therein expressed, we find the self-bias or private motivation of the composer.
2006 Times (Nexis) 8 July (Features section) 10 We tend to grossly underestimate the disadvantages of optimism, which can include overconfidence and positive self-bias that make it harder for optimists to learn from their mistakes.
2. Electronics. In a thermionic valve: bias (bias n. 7a) generated by means of a resistor placed between the cathode and the ground, rather than by external circuit component. In later use also: (in a transistor) bias generated within the transistor itself, rather than by an external circuit component.
ΚΠ
1932 F. E. Terman Radio Engin. xi. 389 (caption) Self-bias circuits for obtaining a negative grid bias..by utilizing the voltage drop across a resistance in series with the cathode.
1960 Pract. Wireless 36 319/1 This condenser discharges through the grid leak.., building up the self bias for the valve.
2005 R. Diffenderfer Electronic Devices vi. 262 One of the important advantages of using self-bias is that it does not require a separate negative-voltage power supply as does the gate-biasing method.
This entry has been updated (OED Third Edition, January 2018; most recently modified version published online March 2022).
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n.1657
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