Results 21 to 30 of about 11,436 (251)
Investigation of the distribution of elastic waves in the composite cylinder with the initial torch
Structural Mechanics of Engineering Constructions and Buildings, 2018 The aim of work. The work is devoted to the study of the propagation of axisymmetric longitudinal waves in a compound cylinder with initial torsion. Solution technique. The initial stresses in the cylinder are determined using the classical linear theory
Mugan S Guliyev +2 more
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Photonics, 2021 In this paper, we have briefly review the developing history and recent advances made with regard to helical long-period fiber gratings (HLPGs) in three aspects, i.e., the mode-coupling theories, the fabrication techniques, and the applications.
Hua Zhao, Hongpu Li
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Thin shells reinforced by fibers with intrinsic flexural and torsional elasticity
International Journal of Solids and Structures, 2023 A two-dimensional thin shell model, derived from a three-dimensional Cosserat elasticity theory for fiber-reinforced solids, is presented. Models for single laminae and two-ply laminates are derived. The novelty of these models lies in the assignment of intrinsic flexural and torsional elasticity to the embedded fibers, regarded as continuously ...
David J. Steigmann +2 more
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The higher-dimensional origin of five-dimensional N $$ \mathcal{N} $$ = 2 gauged supergravities
Journal of High Energy Physics, 2022 Using exceptional generalised geometry, we classify which five-dimensional N $$ \mathcal{N} $$ = 2 gauged supergravities can arise as a consistent truncation of 10-/11-dimensional supergravity.
Grégoire Josse +3 more
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N = (2, 0) AdS3 solutions of M-theory
Journal of High Energy Physics, 2023 We consider the most general solutions of eleven-dimensional supergravity preserving N = 2 supersymmetry whose metrics are warped products of three-dimensional anti-de Sitter space with an eight-dimensional manifold, focusing on those realising (2,0 ...
A. Ashmore
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Journal of Advanced Engineering and ComputationDue to the absence of rigorous mathematical modeling and extensive experimental validation, the applications of torsion fields—such as zero-point energy extraction and therapeutic functionalities—remain in the hypothetical stage.
Jiang Jian-zhong
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Stationary acceleration of Frenet curves
Journal of Inequalities and Applications, 2017 In this paper, the stationary acceleration of the spherical general helix in a 3-dimensional Lie group is studied by using a bi-invariant metric. The relationship between the Frenet elements of the stationary acceleration curve in 4-dimensional Euclidean
Nemat Abazari +3 more
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Twisted Contact Structures in Turbulent Flows [PDF]
INCAS Bulletin, 2019 The “hairpin” vortical structure initiated from a conceptual model of Theodorsen refers to a Ω-shaped vortex with two streamwise-oriented legs connected via a raised spanwise-oriented arch.
Horia DUMITRESCU +2 more
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Some results on a black hole with a global monopole in Poincaré gravity
European Physical Journal C: Particles and Fields, 2018 The aim of this work is to study the thermodynamics and spin current of a system corresponding to a black hole containing a global monopole in the context of Poincaré gravity theory which is an extension of general relativity, in the sense that the ...
Valdir B. Bezerra +2 more
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Helically twisted spacetime: Study of geometric and wave optics, and physical analysis
Physics Letters BWe analyse a stationary, cylindrically symmetric spacetime endowed with an intrinsic helical twist, ds2=−dt2+dr2+r2dϕ2+(dz+ωrdϕ)2. Solving the Einstein equations exactly yields an anisotropic energy–momentum tensor whose density is negative and decays as
Edilberto O. Silva +2 more
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