Abstract We present a study of smart growth in layered cylindrical structures. start from the characterization compatible field an anisotropic growing tube with aim to show small perturbation that may produce controlled deprivation compatibility and localization elastic energy storage composite structure made up tubes.

• The problem of dispersion of an indicator by laminar flow in a cylindrical tube of radius, R, was recently examined by Taylor. Initially the tube may be filled with indicator-free solution, and then the indicator solution "washed in," or it may be filled with solution containing indicator, which is then "washed out" with indicator-free solution. Taylor obtained equations for the mean concentr...

Let A be a set of trivariate irreducible integral polynomials and let D be an A-invariant cylindrical algebraic decomposition (cad) of three-dimensional space. This paper presents a new algorithm for determining the interstack adjacencies in D over a given non-nullifying (for A) 0-cell, 1-cell adjacency in the cad D 0 of the plane induced by D. We show that this new adjacency algorithm for thre...

2014 A colloidal crystal retained in a cylindrical tube and submitted to an oscillatory flow exhibits under certain conditions a spatially periodic pattern. Optical observations of the colored flecks show the existence of a continuous modulation of the orientation of the crystallites at the tube surface. It is due to the presence of a transverse component in the velocity field. We also present ...

Radial elastic corrugation of multiwalled carbon nanotubes under hydrostatic pressure is demonstrated by using the continuum elastic theory. Various corrugation patterns are observed under a pressure of several GPa, wherein the stable cross-sectional shape depends on the innermost tube diameter D and the total number N of concentric walls. A phase diagram is established to obtain the requisite ...

We search for tubular solutions in unstable D3-brane. With critical electric field E = 1, solutions representing supertubes, which are supersymmetric bound states of fundamental strings, D0-branes, and a cylindrical D2-brane, are found and shown to exhibit BPS-like property. We also point out that boosting such a tachyon tube solution generates string flux winding around the tube, resulting in ...