نتایج جستجو برای: ultrasonic atomizer

تعداد نتایج: 28753  

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2001
X Hou K E Levine A Salido B T Jones M Ezer S Elwood J B Simeonsson

In this work, tungsten coil (W-Coil) devices are used as atomizers for electrothermal atomization atomic absorption spectrometry (ETAAS), electrothermal atomization laser excited atomic fluorescence spectrometry (ETA-LEAFS), and electrothermal vaporization inductively coupled plasma atomic emission spectrometry (ETV-ICP-AES). For most cases in ETAAS and ETA-LEAFS, limits of detection (LODs) usi...

Journal: :E3S web of conferences 2023

The article presents methods for determining the main parameters of a rotating atomizer sprayer. choice research methodology is justified based on general pattern liquid atomization by atomizers, taking into account influence air flow them. indicators affecting sprayed drops' dispersal are rate and rotational speed pneumatic disk atomizer. Therefore, correct method ω makes it possible, at const...

2003
C. T. Avedisian A. K. Gupta

The in uence of fuel chemical composition on  ame structure and sooting trends in a swirling spray  ame was investigated semiquantitatively using a light-scattering/dissymmetry ratio technique. Binary mixtures of toluene and methanol were examined under Ž xed aerodynamic and burner inlet  ow conditions to show the effect of liquid composition. The sprays were generated using an air-assist a...

Journal: :Analytica chimica acta 2008
Zhenli Zhu Jixin Liu Sichun Zhang Xing Na Xinrong Zhang

A new atomizer based on atmospheric pressure dielectric barrier discharge (DBD) plasma was specially designed for atomic fluorescence spectrometry (AFS) in order to be applied to the measurement of arsenic. The characteristics of the DBD atomizer and the effects of different parameters (power, discharge gas, gas flow rate, and KBH(4) concentration) were discussed in the paper. The DBD atomizer ...

2017
Junhui Law Ka Wai Kong Ho-Yin Chan Winston Sun Wen Jung Li Eric Boa Fung Chau George Kak Man Chan

The development of a novel lead-free microelectromechanical-system (MEMS)-based atomizer using the principle of thermal bubble actuation is presented. It is a low-cost, lead-free design that is environmentally friendly and harmless to humans. It has been tested to be applicable over a wide range of fluid viscosities, ranging from 1 cP (e.g., water) to 200 cP (e.g., oil-like fluid) at room tempe...

Journal: :acta medica iranica 0
r. nafissy

lithum can be de termined both by atomic absorption spectroscopy andflame emission spectroscopy. we have used the later method with a zeiss model pmqli spectro photometer fitt ed with ante-chamber atomizer and a potensiome rric line recorder. accurate ana lysis for the clement was acco mplished due to a sophisracared measuring instrument.

Journal: :Physical Review Applied 2015

2013
S. D. Pack J. A. Ryon G. A. Zink D. D. Dvorak J. L. Goeke

Spray Diagnostics Measurements of an air blast atomizer at ambient pressure conditions are presented. The atomizer was developed by United Technologies Aerospace Systems as part of a combustor design for NASA's Environmentally Responsible Aviation (ERA) N+2 advanced, low NOx combustor technologies program. The goals of this combustor design is to meet or exceed the N+2 LTO NOx goal of 75% reduc...

Journal: :Otolaryngology–Head and Neck Surgery 2010

2006
Edgar P. Herrero Eva M. Del Valle Miguel A. Galán

A temporal stability analysis was carried out to model the atomization of a swirling viscous non-Newtonian 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 non-Newtonian annular liquid sheet under swirling air streams was obtained. Numerical solution...

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