Results 31 to 40 of about 26,863 (267)
Journal of the Mechanical Behavior of Materials, 2014 This paper elaborates that at micro/nanoscales, highly curved matter spaces may induce abnormal driving forces. Such abnormal driving forces are controlled by two fundamental factors: one is the bending extent of surfaces (curvature) and another is the ...
Yin Yajun, Wu Jiye
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A Design Optimization Study for the Die Dimensioning Using the Locking Nut Folding Simulation
Journal of Mechanical Engineering, 2021 An inverse analysis based on optimization process is performed to determine die curvatures for a locking nut’s flange folding process which has highly nonlinear material behaviour. The nut material is AISI C1040 steel.
Ülüver Bozkurt, İlyas Kacar
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MethodsX, 2020 The determination of the orthodontic brackets’ adaptation to the curvatures of teeth is a difficult topic to study. The complexity arise due to the different designs of their fitting surfaces, margins and curvatures of orthodontic brackets.
Yaseen Fakir, BChD, MSc +2 more
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Nonnegative curvature and conullity of the curvature tensor [PDF]
Annals of Global Analysis and Geometry, 2019 The conullity of a curvature tensor is the codimension of its kernel. We consider the cases of conullity two in any dimension and conullity three in dimension four. We show that these conditions are compatible with non-negative sectional curvature only if either the manifold is diffeomorphic to $\mathbb{R}^n$ or the universal cover is an isometric ...
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Special helices on equiform differential geometry of timelike curves in E_1^4
Cumhuriyet Science Journal, 2021 In this paper, we introduce the moving Frenet frame along the timelike curve in E_1^4 and then Frenet formulas with the equiform parameter in the equiform geometry of the Minkowski space-time.
Fatma Bulut
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A characterization of ccr-curves in Rm; pp. 217–224 [PDF]
Proceedings of the Estonian Academy of Sciences, 2008 We study the curve in Rm for which the ratios between two consecutive curvatures are constant (ccr-curves). We show that closed ccr-curves in Euclidean space Rm are of finite type.
Günay Öztürk +2 more
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Sectional curvatures distribution of complexity geometry
Journal of High Energy Physics, 2022 In the geometric approach to defining complexity, operator complexity is defined as the distance in the operator space. In this paper, based on the analogy with the circuit complexity, the operator size is adopted as the metric of the operator space ...
Qi-Feng Wu
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Mathematische Annalen, 2015 The purpose of this paper is to interpret the phase transition in the Loewner theory as an analog of the hyperbolic variant of the Schur theorem about curves of bounded curvature. We define a family of curves that have a certain conformal self-similarity property. They are characterized by a deterministic version of the domain Markov property, and have
Lind, Joan R., Rohde, Steffen
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Journal of Sustainable Mining, 2015 The aim of this paper is obtainment of dependence between practical and theoretical values of curvatures which were calculated at a given level of forecast's safety.
Jan Białek +2 more
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On Parametric Surfaces with Constant Mean Curvature Along Given Smarandache Curves in Lie Group
Journal of New Theory, 2022 This paper finds sufficient conditions to determine a surface whose mean curvature along a given Smarandache curve is constant in a three-dimensional Lie group.
Sevinç Taze, Zuhal Kucukarslan Yuzbasi
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