منابع مشابه
Triangle inequality for resistances
Given an electrical circuit each edge e of which is an isotropic conductor with a monomial conductivity function y∗ e = y r e/μ s e. In this formula, ye is the potential difference and y∗ e current in e, while μe is the resistance of e, while r and s are two strictly positive real parameters common for all edges. In 1987, Gvishiani and Gurvich [4] proved that, for every two nodes a, b of the ci...
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We propose a unified approach to addition of resistors and capacitors such that the formulæ are always simply additive. This approach has the advantage of being consistent with the intuition of the students. To demonstrate our point of view, we re-work some wellknown end-of-the-chapter textbook problems and propose some additional new problems.
متن کاملMetric and ultrametric spaces of resistances a
Given an electrical circuit each edge e of which is an isotropic conductor with a monomial conductivity function y∗ e = y r e/μ s e. In this formula, ye is the potential difference and y∗ e current in e, while μe is the resistance of e; furthermore, r and s are two strictly positive real parameters common for all edges. In particular, r = s = 1 correspond to the standard Ohm low. In 1987, Gvish...
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Osmoreceptors in the upper small bowel may delay gastric emptying by inhibiting fundal tone and/or by increasing outflow resistances. In this study we examined the contribution of postpyloric resistances to this braking system. Seven dogs had gastric emptying of 250 ml 15% dextrose, labelled with 99mTc-DTPA, measured by gamma camera imaging (preoperative studies: n = 21). A proximal duodenal ca...
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ژورنال
عنوان ژورنال: Modern Language Quarterly
سال: 2001
ISSN: 0026-7929,1527-1943
DOI: 10.1215/00267929-62-4-309