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Displaying similar documents to “Symmetry problems 2”

On surface braids of index four with at most two crossings

Teruo Nagase, Akiko Shima (2005)

Fundamenta Mathematicae

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Let Γ be a 4-chart with at most two crossings. We show that if the closure of the surface braid obtained from Γ is one 2-sphere, then the sphere is a ribbon surface.

Simulation of electrostatic field in electrospinning of polymer nanofibers

Y. Li, X. Zhang, E. Trudick, G.G. Chase (2015)

Nanoscale Systems: Mathematical Modeling, Theory and Applications

Similarity:

Electrospinning is a popular process for fabricating submicron diameter gibers. The process applies a strong electric gield to launch a polymer jet that elongates to create the gine gibers. The jet dries as the solvent evaporates and the dried giber collects on a grounded surface. Most of electrospinning literatures focus the polymer solution compositions and the properties of the produced gibers. Less attention is applied to the electrostatic gield geometries and operating conditions....