单词 | self-bias |
释义 | self-biasn. 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). < n.1657 |
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