T-duality of non-relativistic string in torsional Newton-Cartan background
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DOI: 10.1007/jhep05(2020)024
Abstract: In this short note we analyse T-duality properties of non-relativistic string in torsional Newton-Cartan background. We also determine condition that ensures that non-relativistic string maps to non-relativistic string under T-duality. read more here.
Keywords: duality; torsional newton; string torsional; newton cartan ... See more keywords
Modeling Friction Performance of Drill String Torsional Oscillation Using Dynamic Friction Model
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DOI: 10.1155/2017/4051541
Abstract: Drill string torsional and longitudinal oscillation can significantly reduce axial drag in horizontal drilling. An improved theoretical model for the analysis of the frictional force was proposed based on microscopic contact deformation theory and a… read more here.
Keywords: friction; oscillation; model; drill string ... See more keywords