Transposition


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Related to Transposition: Transposition of the great arteries, Transposition of the great vessels

transposition

[‚tranz·pə′zish·ən]
(communications)
Interchanging the relative positions of conductors at regular intervals along a transmission line to reduce cross talk.
(mathematics)
A permutation of a set of symbols which exchanges exactly two while leaving all others unaffected.

Transposition

 

in electrical engineering, a change in the relative position of the conductors of individual phases along the length of an overhead power line in order to reduce the undesirable influence of power lines on one another and on nearby communication lines. To make a transposition, an entire power line is arbitrarily divided into sections, the number of which is a multiple of the number of phases. In each successive section the phases change places, so that each phase eventually occupies the positions of the others. The length of a section is determined by the conditions for reliable operation of the power line, the cost of constructing the power line, and the requirements for balance of the power line’s currents and voltages; the balance increases as a result of the equalization of the inductances and capacitances of the power line’s phases in a transposition section. Transpositions are made on power lines that are over 100 km in length and have voltages of 110 or more kilovolts. A complete phase-transposition cycle covers a length of not more than 300 km.

REFERENCE

Mel’nikov.N. A. Elektricheskie seti i sistemy. Moscow, 1975.

Transposition

 

in mathematics, a permutation of the elements of a given set whereby two elements are interchanged. For example, 13452 is transformed into 53412 by a transposition that interchanges the elements 5 and 1. (SeePERMUTATION.)


Transposition

 

in music, the transfer of all the notes of a composition to a designated lower or higher key. Transposition by any interval other than an octave results in a change of key. The purpose of transposition is to adapt musical compositions for performance to a higher or lower voice or to an instrument with a different range. Transposition may also facilitate reading by reducing the number of sharps and flats needed in notation.

References in periodicals archive ?
CT imaging in congenital heart disease: an approach to imaging and interpreting complex lesions after surgical intervention for tetralogy of fallot, transposition of the great arteries, and single ventricle heart disease.
Gizmox Transposition had spun off with the author of the technology in 2014 from Gizmox LTD (established in 2007), to focus on Transposition.
Thomas Bugnayer from the University of Vienna added that finding that Goffins solve transposition, rotation and translocation tasks, which are likely to pose a large cognitive load on working memory, was surprising and calls for more comparative data in order to better understand the relevance of such accurate tracking abilities in terms of ecology and sociality.
It is noted that the current 1 % transposition deficit is still favourable, equaling the 1 % deficit target agreed by the Member States.
The vast majority of patients with congenitally corrected transposition of the great arteries, however, have associated cardiac malformations.
The Polish Competent Authorities' transposition of EU medical device directives--the Act of May 20, 2010, on Medical Devices, Official Journal Laws 2010, No.
In addition, Costa touches on the aura effect that exists between film and literature in which even a bad transposition may inspire a viewer to read the book, just as a novel will create the desire to see the film.
On the other hand, the Cultural factors examined in the second section, and developed by Falkner et al (2005, 2007), were divided into different worlds (law observance, domestic concerns and transposition neglect); depending on the political culture of the EU member states.
Shortly after Alfie was born last July, he was diagnosed with having transposition of the great arteries - which meant the position of his aorta and pulmonary artery were reversed.
Distances are measured in the number of operations (reversals, block transposition, DCJ or combinations) needed to transform one permutation into another.
Complete anaesthesia in the cutaneous distribution of the ulnar nerve following submuscular anterior transposition of the ulnar nerve has not been previously reported.