Layout of Coiling Tools and Inclination of Elliptic Wire Cross Section in Coiling
نویسندگان
چکیده
منابع مشابه
Theory of myelin coiling.
A new model is proposed to explain coiling of myelins composed of fluid bilayers. This model allows the constituent bilayer cylinders of a myelin to be non-coaxial and the bilayer lateral tension to vary from bilayer to bilayer. The calculations show that a myelin would bend or coil to lower its free energy when the bilayer lateral tension is sufficiently large. From a mechanical point of view,...
متن کاملStent-Assisted Coiling versus Coiling in Treatment of Intracranial Aneurysm: A Systematic Review and Meta-Analysis
BACKGROUND AND PURPOSE Stent-assisted coiling was initially invented for wide-neck aneurysms, but is now used for smaller berry aneurysms. The aim of this study was to compare the safety and efficiency of stent-assisted coiling with conventional coiling in treatment of intracranial aneurysms. METHODS A meta-analysis of studies that compared stent-assisted coiling with coiling only was conduct...
متن کاملCoiling instabilities of multilamellar tubes.
Myelin figures are densely packed stacks of coaxial cylindrical bilayers that are unstable to the formation of coils or double helices. These myelin figures appear to have no intrinsic chirality. We show that such cylindrical membrane stacks can develop an instability when they acquire a spontaneous curvature or when the equilibrium distance between membranes is decreased. This instability brea...
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15 صفحه اولStability of Liquid Rope Coiling
A thin ‘rope’ of viscous fluid falling from a sufficient height coils as it approaches a rigid surface. Here we perform a linear stability analysis of steady coiling, with particular attention to the ‘inertiogravitational’ regime in which multiple states with different frequencies exist at a fixed fall height. The basic states analyzed are numerical solutions of asymptotic ‘thin-rope’ equations...
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ژورنال
عنوان ژورنال: Transactions of Japan Society of Spring Engineers
سال: 1994
ISSN: 0385-6917,1348-1479
DOI: 10.5346/trbane.1994.61