Results 1 to 10 of about 352,784 (297)
Optics Express, 2018 We propose and experimentally demonstrate a directional torsion sensor based on a Mach-Zehnder interferometer formed in a multicore fiber (MCF) with a ~570-μm-long helical structure (HS). The HS was fabricated into the MCF by simply pre-twisting and then
Hailiang Zhang +8 more
openalex +2 more sources
Torsion at Different Scales: From Materials to the Universe
Universe, 2023 The concept of torsion in geometry, although known for a long time, has not gained considerable attention from the physics community until relatively recently, due to its diverse and potentially important applications to a plethora of contexts of ...
Nick E. Mavromatos +2 more
doaj +1 more source
Computerized Generation and Finite Element Stress Analysis of Endodontic Rotary Files
Applied Sciences, 2021 Introduction: The finite element method has been extensively used to analyze the mechanical behavior of endodontic rotary files under bending and torsional conditions.
Victor Roda-Casanova +5 more
doaj +1 more source
Cylindrical shell with a circular hole under various loads: Comparison of analytical and numerical solutions [PDF]
Известия Саратовского университета. Новая серия: Математика. Механика. Информатика, 2023 In this paper, the authors present the results of calculations of the stress field of a cylindrical shell weakened by a circular hole and under the influence of various loads: uniaxial tension, internal pressure and torsion.
Kashtanova, Stanislava V. +1 more
doaj +1 more source
Torsion for Homological Complexes of Nonassociative Algebras with Metagroup Relations
Axioms, 2021 The article is devoted to homological complexes and modules over nonassociative algebras with metagroup relations. Smashed tensor products of them are studied. Their torsions and homomorphisms are investigated.
Sergey Victor Ludkowski
doaj +1 more source
Cosmological hyperfluids, torsion and non-metricity [PDF]
The European Physical Journal C, 2020 We develop a novel model for cosmological hyperfluids, that is fluids with intrinsic hypermomentum that induce spacetime torsion and non-metricity. Imposing the cosmological principle to metric-affine spaces, we present the most general covariant form of
D. Iosifidis
semanticscholar +1 more source
Necrosis of an ectopic testicle in a child
Лечащий Врач, 2021 Cryptorchidism is dangerous for possible complications that affect both reproductive health and the state of organs. In patients with bilateral cryptorchidism, infertility as a complication reaches 80%.
A. Zh. Kadyrkulov +2 more
doaj +1 more source
Multivariable Regression Strength Model for Steel Fiber-Reinforced Concrete Beams under Torsion
Materials, 2021 Torsional behavior and analysis of steel fiber reinforced concrete (SFRC) beams is investigated in this paper. The purpose of this study is twofold; to examine the torsion strength models for SFRC beams available in the literature and to address properly
A. Deifalla +2 more
semanticscholar +1 more source
Torsion in String-Inspired Cosmologies and the Universe Dark Sector
Universe, 2021 Several aspects of torsion in string-inspired cosmologies are reviewed. In particular, its connection with fundamental, string-model independent, axion fields associated with the massless gravitational multiplet of the string are discussed.
Nick E. Mavromatos
doaj +1 more source
Optically Levitated Nanodumbbell Torsion Balance and GHz Nanomechanical Rotor. [PDF]
Physical Review Letters, 2018 Levitated optomechanics has great potential in precision measurements, thermodynamics, macroscopic quantum mechanics, and quantum sensing. Here we synthesize and optically levitate silica nanodumbbells in high vacuum.
Jonghoon Ahn +7 more
semanticscholar +1 more source