Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Cheol S. Park"'
Topological defect coarsening in quenched smectic- C films analyzed using artificial neural networks
Publikováno v:
Physical Review E. 107
Mechanically quenching a thin film of smectic-C liquid crystal results in the formation of a dense array of thousands of topological defects in the director field. The subsequent rapid coarsening of the film texture by the mutual annihilation of defe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6330547ede05d86b750f7f7b847ac251
https://doi.org/10.1103/physreve.107.044701
https://doi.org/10.1103/physreve.107.044701
Autor:
Ralf Stannarius, Torsten Trittel, Christoph Klopp, Alexey Eremin, Kirsten Harth, Noel A Clark, Cheol S Park, Joseph E Maclennan
Publikováno v:
New Journal of Physics, Vol 21, Iss 6, p 063033 (2019)
Freely suspended smectic films with in-plane temperature inhomogeneities can exhibit remarkable thermocapillary (Marangoni) effects. The temperature dependence of the surface tension $\sigma (T)$ promotes flow in the film plane, convection roll patte
Externí odkaz:
https://doaj.org/article/d6e4f64ecc2b485d9efbb5955fe4e587
Autor:
Xi Chen, Zhecong Zhu, Mitchell J. Magrini, Eva Korblova, Cheol S. Park, Matthew A. Glaser, Joseph E. Maclennan, David M. Walba, Noel A. Clark
The organic mesogens RM734 and DIO are members of separate molecular families featuring distinct molecular structures. These families, at the present time, are the only ones known to exhibit a ferroelectric nematic liquid crystal (LC) phase. Here we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bae40b7a7ee8016a5d3713aea020b4cf
Autor:
Eric Hedlund, Keith Hedlund, Adam Green, Ravin Chowdhury, Cheol S. Park, Joseph E. Maclennan, Noel A. Clark
Machine learning techniques have been developed to identify inclusions on the surface of freely suspended smectic liquid crystal films imaged by reflected light microscopy. The experimental images are preprocessed using Canny edge detection and then
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7594aaf124186120b6dfb4ec65246799