We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Transition Temperatures of Thermotropic Liquid Crystals fromthe Local Binary Gray Level Cooccurrence Matrix.
- Authors
Sastry, S. Sreehari; Kumari, T. Vindhya; Rao, C. Nageswara; Mallika, K.; Lakshminarayana, S.; Ha Sie Tiong
- Abstract
This paper presents a method which combines the statistical analysis with texture structural analysis called Local Binary Gray Level Cooccurrence Matrix (LBGLCM) to investigate the phase transition temperatures of thermotropic p,n-alkyloxy benzoic acid (nOBA, n = 4, 6, 8, 10 and 12) liquid crystals. Textures of the homeotropically aligned liquid crystal compounds are recorded as a function of temperature using polarizing optical microscope attached to the hot stage and high resolution camera. In this method, second-order statistical parameters (contrast, energy, homogeneity, and correlation) are extracted from the LBGLCM of the textures. The changes associated with the values of extracted parameters as a function of temperature are a helpful process to identify the phases and phase transition temperatures of the samples. Results obtained from this method have validity and are in good agreement with the literature.
- Subjects
TRANSITION temperature; THERMOTROPISM; LIQUID crystals; QUANTITATIVE research; STRUCTURAL analysis (Science); BENZOIC acid; TEXTURES; OPTICAL microscopes
- Publication
Advances in Condensed Matter Physics, 2012, p1
- ISSN
1687-8108
- Publication type
Article
- DOI
10.1155/2012/527065