منابع مشابه
The Effect of Core Surface Tension on Roughness of Film - Coated Tablets
The arithmetic mean roughness, Ra, values were determined by scanning electron microscopic technique of different core models (furazolidone, nitrofurantoin and acetyl salicylic acid), coated by HPMC film forming solution containing 10 wt% of various molecular weight PEGs. The results showed that both plasticizer molecular weight and core surface free energy could have a significant influence on...
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An endeavour has been made to study and analyze the performance of a Jenkins model based ferrofluid squeeze film in curved rough circular plates considering the effect of slip velocity. The slip model of Beavers and Joseph has been used and Christensen and Tonder’s stochastic modeling of roughness has been employed. With the aid of suitable boundary conditions the associated Reynolds type equat...
متن کاملRoughness effects on thin film physical properties
The emergence of thin film nanoscience as an identifiable field of investigation parallels the development and adaptation of surface structural and chemical probes to provide in situ real-time atomic-scale data during film growth. The next step in this evolutionary process, which evolving right now, is the addition of theory and modeling as standard approaches, used in combination with the abov...
متن کاملSqueeze-film damping of flexible microcantilevers
An improved theoretical approach is proposed to predict the dynamic behavior of long, slender and flexible microcantilevers affected by squeeze-film damping at low ambient pressures. Our approach extends recent continuum gas damping models (Veijola 2004 J. Micromech. Microeng. 14 1109–18, Gallis and Torczynski 2004 J. Microelectromech. Syst. 13 653–9), which were originally derived for a rigid ...
متن کاملThe Effect of Core Surface Tension on Roughness of Film - Coated Tablets
The arithmetic mean roughness, Ra, values were determined by scanning electron microscopic technique of different core models (furazolidone, nitrofurantoin and acetyl salicylic acid), coated by HPMC film forming solution containing 10 wt% of various molecular weight PEGs. The results showed that both plasticizer molecular weight and core surface free energy could have a significant influence on...
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ژورنال
عنوان ژورنال: Sadhana
سال: 2002
ISSN: 0256-2499,0973-7677
DOI: 10.1007/bf02703296