کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5412969 | 1506612 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Image processing as a tool for phase transitions identification
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
This paper reports on the application of image processing of liquid crystal textures captured as a function of the sample temperature. From the calculations we obtain the mean square deviation of the image tones, where the appearance of discontinuities as a function of the temperature is related to a phase transition. This method is a particularly important tool for the identification of phase transitions with reduced enthalpy, which are difficult to identify from DSC experiments. We investigated compounds that exhibit smectic and columnar mesophases, and the results are compared with those obtained from optical observation, X-ray diffraction and DSC. In addition, this method can be used to identify the melting points of thin solid films in general.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 153, Issues 2â3, 15 May 2010, Pages 162-166
Journal: Journal of Molecular Liquids - Volume 153, Issues 2â3, 15 May 2010, Pages 162-166
نویسندگان
J. Eccher, A.R. Sampaio, R.C. Viscovini, G. Conte, E. Westphal, H. Gallardo, I.H. Bechtold,