Results 231 to 240 of about 398 (251)
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Point-of-care ultrasound use in umbilical line placement: a review
Journal of Perinatology, 2019Point-of-care ultrasound (POCUS) has become a novel tool for assessing umbilical catheter tip location in the neonate. This review analyzes the current evidence on the efficacy and utility of POCUS for identifying umbilical catheter positioning. Medline, EMBASE, and Cochrane searches were performed until October 2018.
Ryan D, Meinen +3 more
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Linear Interpolation of Shape Operators for Umbilical Points Through Local Parametrization
SSRN Electronic Journal, 2022zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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On Pointing Accuracy and Pointing Stability of Disturbance-Free Payload Using Umbilical Connection
2018 37th Chinese Control Conference (CCC), 2018Pointing accuracy and pointing stability play an important role in gravitational wave detection spacecraft. This paper presents dynamics model, pointing accuracy and stability analysis of a payload-spacecraft system connected using umbilical and non-contact actuators.
Jiaxing Zhou +5 more
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On conditions for existence of umbilical points on a convex surface
Siberian Mathematical Journal, 1995Let \(F\) be a connected complete \(C^\infty\) surface homeomorphic to a plane in the Euclidean space \(\mathbb{R}^3\) and \(k_1\), \(k_2\) its principal curvatures. The author establishes the following result. If the surface \(F\) satisfies one of the following conditions: (i) the integral curvature is strictly smaller than \(2\pi\), (ii) the Gauss ...
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Hyperbolic Conservation Laws with Umbilic Points I
1992Abstract : In this paper a compactness framework for approximate solutions to nonlinear hyperbolic systems with umbilic points is established by combining ideas in modern nonlinear analysis with classical methods, and by a detailed analysis of a highly singular Euler-Poisson-Darboux-type equation.
Pui T. Kan, Gui-Qiang Chen
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The Umbilic Points in Ellipsoidal Orthorhombic Medium
83rd EAGE Annual Conference & Exhibition, 2022S. Xu, A. Stovas, X. Huang
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Umbilical Points and W-Surfaces
American Journal of Mathematics, 1954Hartman, Philip, Wintner, Aurel
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Principal Curvature Lines Near a Partially Umbilic Point of Codimension One
Lobachevskii Journal of Mathematics, 2022Jorge Sotomayor +2 more
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An asymptotic expansion of the hyberbolic umbilic catastrophe integral
Ramanujan Journal, 2022Chelo Ferreira +2 more
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Manipulating self-focusing beams induced by high-dimensional parabolic umbilic beams
Results in Physics, 2023Juntao Hu, Yixian Qian
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