Academic Journal
Automated Evaluation of Contact Angles in a Three-Phase System of Selective Agglomeration in Liquids
| العنوان: | Automated Evaluation of Contact Angles in a Three-Phase System of Selective Agglomeration in Liquids |
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| المؤلفون: | Julia Schreier, Orkun Furat, Murat Cankaya, Volker Schmidt, Ulrich Bröckel |
| المصدر: | Image Analysis and Stereology, Vol 39, Iss 3, Pp 187-196 (2020) |
| بيانات النشر: | Slovenian Society for Stereology and Quantitative Image Analysis, 2020. |
| سنة النشر: | 2020 |
| المجموعة: | LCC:Medicine (General) LCC:Mathematics |
| مصطلحات موضوعية: | automated detection, contact angle, image data, parametric contour modelling, selective agglomeration, three-phase system, Medicine (General), R5-920, Mathematics, QA1-939 |
| الوصف: | This study aims to an automated evaluation of contact angles in a three-phase system of selective agglomeration in liquids. Wetting properties, quantified by contact angles, are essential in many industries and their processes. Selective agglomeration as a three-phase system consists of a suspension liquid, a heterogeneous solid phase and an immiscible binding liquid. It offers the chance of establishing more efficient separation processes because of the shape-dependent wetting properties of fine particles (size ≤ 10 µm). In the present paper, an experimental setup for contact angle measurements of fine particles based on the Sessile Drop Method is described. Moreover, a new algorithm is discussed, which can be used to automatically compute contact angles from image data captured by a high-speed camera. The algorithm uses a marker-based watershed transform to segment the image data into regions representing the droplet, the carrier plate coated by fine particles, and the background. The main idea is a parametric modelling approach forthe time-dependent droplet’s contour by an ellipse. The results show that the development of the dynamic contact angles towards a static contact angle can be efficiently determined based on this novel technique. These findings are useful for a detailed discrimination of wetting properties of spherical and irregularly shaped particles as well as their wetting kinetics. Also, a better understanding of selective agglomeration processes will be promoted by this user-friendly method. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1580-3139 1854-5165 |
| Relation: | https://www.ias-iss.org/ojs/IAS/article/view/2403; https://doaj.org/toc/1580-3139; https://doaj.org/toc/1854-5165 |
| DOI: | 10.5566/ias.2403 |
| URL الوصول: | https://doaj.org/article/54f99cad71724d83a6ec534cd051bb4d |
| رقم الانضمام: | edsdoj.54f99cad71724d83a6ec534cd051bb4d |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 15803139 18545165 |
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| DOI: | 10.5566/ias.2403 |