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The Schering bridge is an electrical circuit used for measuring the insulating properties of electrical cables and equipment. [1] It is an AC bridge circuit , developed by Harald Schering . It has the advantage that the balance equation is independent of frequency.
Necessary truths can be derived from the law of identity (and the principle of non-contradiction): "Necessary truths are those that can be demonstrated through an analysis of terms, so that in the end they become identities, just as in Algebra an equation expressing an identity ultimately results from the substitution of values [for variables ...
The theory has often been extended to a critical period for second-language acquisition (SLA). David Singleton states that in learning a second language, "younger = better in the long run", but points out that there are many exceptions, noting that five percent of adult bilinguals master a second language even though they begin learning it when they are well into adulthood—long after any ...
Anderson's bridge. In electronics, Anderson's bridge is a bridge circuit used to measure the self-inductance of the coil. It enables measurement of inductance by utilizing other circuit components like resistors and capacitors. [1] Anderson's bridge was invented by Alexander Anderson in 1891. [2]
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The number of Eulerian circuits in digraphs can be calculated using the so-called BEST theorem, named after de Bruijn, van Aardenne-Ehrenfest, Smith and Tutte. The formula states that the number of Eulerian circuits in a digraph is the product of certain degree factorials and the number of rooted arborescences .
[a] These necessary conditions become sufficient under certain convexity conditions on the objective and constraint functions. [1] [2] The maximum principle was formulated in 1956 by the Russian mathematician Lev Pontryagin and his students, [3] [4] and its initial application was to the maximization of the terminal speed of a rocket. [5]
'Comprehensible input' is the crucial and necessary ingredient for the acquisition of language. The comprehensible input hypothesis can be restated in terms of the natural order hypothesis . For example, if we acquire the rules of language in a linear order (1, 2, 3...), then i represents the last rule or language form learned, and i+1 is the ...