Results 21 to 30 of about 23,592 (266)
Design and Performance Research of Flexible Drill Pipe Joint Based on Bionic Theory
Geofluids, 2021 Fatigue fracture is the main failure form of mining drill pipe joints, which directly leads to the occurrence of drill pipe drop accidents. Based on the principle of engineering bionics, the spine structure and kinematic behavior characteristics of ...
Chuanliu Wang, Pei Ju
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Alternative dynamic torsion test to evaluate the elastic modulus of polymers
Materials Research Express, 2020 This work presents an alternative for the determination of the torsion modulus, G, of polymers. These materials may be subjected to shear stresses in some structural applications; thereby, the knowledge of G is of great interest.
Lucas Pereira Piedade +4 more
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Mechanisms of divergent torsional strain in myopia
Modern technologies in ophtalmology, 2023 Perpose. To study the mechanism of extralenticular accommodation under conditions of divergent torsional strain (DTS). Material and methods. The study involved 14 students (28 eyes) with mild and moderate myopia, whose average age was 21.7 years. Among them were 4 boys and 10 girls.
A.N. Zakieva, D.I. Terekhina
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Journal of Materials Research and Technology, 2019 In this study, the mechanical spectroscopy technique was applied to measure the torsion modulus of Ti-xZr (where x = 0, 5, 10 and 15 wt%) alloys for dental applications.
Carlos A.F. Pintão +2 more
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Applied Sciences, 2023 Inspired by the macro/microstructures of starfish and beetle elytra, a series of bio-inspired structures (BSs) with improved comprehensive mechanical performance were proposed and fabricated.
Lili Liu +4 more
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Acta Ortopédica Brasileira, 2008 Parafusos corticais são submetidos a tensões de torção durante sua inserção e retirada. Portanto, um dos objetivos deste trabalho foi avaliar o comportamento mecânico dos parafusos corticais de aço inoxidável, quando submetidos a dois tipos de ensaios de
Suraya Gomes Novais Shimano +1 more
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Testicular ascent as a mechanism for intra-abdominal torsion
Radiology Case Reports, 2010 Testicular ascent, while uncommon, can occur. A testicle that has ascended out of the scrotum can torse and may present as an acute inguinal mass or acute abdomen. Testicle ascent can occur even if previous intra-scrotal location has been documented.
Plitt, David C. +3 more
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An Atomistic-Based Nonlinear Plate Theory for Hexagonal Boron Nitride
Nanomaterials, 2021 Through the continuity of the DREIDING force field, we propose, for the first time, the finite-deformation plate theory for the single-layer hexagonal boron nitride (h-BN) to clarify the atomic source of the structure against deformations. Divergent from
Kun Huang, Jiye Wu, Yajun Yin
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Constrained systems and analytical mechanics in spaces with torsion [PDF]
Journal of Physics A: Mathematical and General, 1998 Plain LaTeX, 16 pages, no ...
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FEBS Letters, EarlyView.Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure +3 more
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