نتایج جستجو برای: ultrasonic atomizer

تعداد نتایج: 28753  

Journal: :The Lancet 1865

2005
Kalyana C. Pingali David A. Rockstraw Shuguang Deng

Silver particles less than 20 nm in diameter were synthesized by pyrolysis of an ultrasonically atomized spray of highly dilute aqueous silver nitrate solution at temperatures above 650◦C and below the melting point of silver. Feed solution concentration and ultrasound power applied to the atomizer were found to have a significant impact on the particle size of the silver nanoparticles. Average...

Journal: :JAMA: The Journal of the American Medical Association 1900

Journal: :Journal of the American Medical Association 1910

Journal: :International Journal of Agricultural and Biological Engineering 2023

In the process of aeroponics cultivation, atomizer is one most important influencing factors on cultivation process. This paper presented design an ultrasonic atomization nozzle using contact charging and a root droplet adhesion test rig. The purpose this study was to reveal relationship between main operating parameters high-voltage electrostatic effect measurements. study, achieved by Laval t...

Journal: :Molecular pharmaceutics 2009
Byung Soo Kim Jae Min Oh Hoon Hyun Kyung Sook Kim Sang Hyo Lee Yu Han Kim Kinam Park Hai Bang Lee Moon Suk Kim

Microencapsulation of insulin has been difficult, due to the high sensitivity of insulin to the harsh conditions that can occur during the microencapsulation process. We have developed a method of preparing insulin-loaded microcapsules by using a monoaxial ultrasonic atomizer to form microdroplets of insulin in aqueous solution surrounded by poly(lactic-co-glycolic acid) (PLGA) solution. Admini...

Journal: :The Boston Medical and Surgical Journal 1866

Journal: :Biomaterials 2009
Byung Soo Kim Jae Min Oh Kyung Sook Kim Kwang Soo Seo Jae Song Cho Gilson Khang Hai Bang Lee Kinam Park Moon Suk Kim

Here we describe the preparation of BSA-FITC-loaded microcapsules as a model protein system for in vivo delivery. BSA-FITC-loaded microcapsules were prepared using a mono-axial nozzle ultrasonic atomizer, varying a number of parameters to determine optimal conditions. The preparation method chosen resulted in a BSA-FITC encapsulation efficiency of approximately 60% and a particle size of approx...

Journal: :Journal of the American Medical Association 1915

2007
Edgar P. Herrero

A temporal stability analysis was carried out to model the atomization of a swirling viscous annular liquid sheet emanating from an air-blast atomizer subject to inner and outer inviscid swirling air streams. The dimensionless dispersion equation that governs the instability of a viscous annular liquid sheet under swirling air streams was obtained. Numerical solutions to the dispersion equation...

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