نتایج جستجو برای: test particles method

تعداد نتایج: 2406117  

2004
Leon Gradoń Stanislaw Janeczko Kikuo Okuyama

Spray drying a mixture of silica and polystyrene latex (PSL) colloids above the decomposition temperature of PSL results in the formation of porous silica particles. By appropriate selection of the experimental conditions, such as the use of a tubular temperature, the weight fraction of colloids, and the flow rate of carrier gas, the resulting silica particles contain organized pores with a hex...

Journal: :Chemical & pharmaceutical bulletin 2008
Tomohiro Hamashita Miwako Matsuzaki Tetsuo Ono Masaki Ono Yoshinobu Tsunenari Takao Aketo Satoru Watano

To prepare powdered drugs that do not have a bitter taste, a film coating covering the surfaces of the core particles is required. The dissolution rate of ibuprofen from the coated particles changes according to the physical properties of the core particles. In this study, the effects of the physical properties of granules prepared by using several scales of agitation fluidized beds on the drug...

Journal: :Biomedical optics express 2014
Anthony Fouad T Joshua Pfefer Chao-Wei Chen Wei Gong Anant Agrawal Peter H Tomlins Peter D Woolliams Rebekah A Drezek Yu Chen

Point spread function (PSF) phantoms based on unstructured distributions of sub-resolution particles in a transparent matrix have been demonstrated as a useful tool for evaluating resolution and its spatial variation across image volumes in optical coherence tomography (OCT) systems. Measurements based on PSF phantoms have the potential to become a standard test method for consistent, objective...

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