منابع مشابه
Determination of Aerosol Particle Size Distribution using Electrical Differential Mobility Analyzer (DMA)
Introduction: Determining the size distribution of the particles for assessing their effects on human health and their control mechanisms is very effective. One of the most important equipment used in determining particle size distribution is the DMA. In this study, in addition to the design and construction of a DMA, the size distribution measurement of aerosol particles was carried out. Mate...
متن کاملDirect Study of the Particle Differential Mobility Analyzer (DMA) Systems: a review article
Background & Aim: One of the unknown equipment inside our country, especially for researchers, is the DMA system, which used to particle size distribution, especially for nanoparticles. The purpose of this paper was to review the studies carried out in this field, assessment of the evolution and importance of the application of this system and introduce the true position of this system among re...
متن کاملA novel tandem differential mobility analyzer with organic vapor treatment of aerosol particles
A novel method to characterize the organic composition of aerosol particles has been developed. The method is based on organic vapor interaction with aerosol particles and it has been named an Organic Tandem Differential Mobility Analyzer (OTDMA). The OTDMA method has been tested for inorganic (sodium chloride and ammonium sulfate) and organic (citric acid and adipic acid) particles. Growth cur...
متن کاملMeasurement of cluster ions and residue nanoparticles from water samples with an electrospray/differential mobility analyzer.
Cluster ions and residue nanoparticles with sizes below 30 nm were generated by electrospraying (ES) and drying droplets of pure water, tap water, and aqueous solutions of salts. The mobility spectra of the cluster ions between 9.1 and 9.3 x 10(-5) m2/(V s) were measured using a differential mobility analyzer (DMA) operated at room temperature and atmospheric pressure. A modified Faraday cup an...
متن کاملThe Differential Analyzer. a New Machine for Solving Differential Equations
I. This paper will describe a new machine for the solution of ordinary differential equations recently placed in service at the Massachusetts Inst i tute of Technology. First, there will be outlined some of the objectives in view, and the general philosophy underlying the development of this type of analyzing device. Various serious mechanical problems have of necessity been met in the effort t...
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ژورنال
عنوان ژورنال: Aerosol Science and Technology
سال: 1995
ISSN: 0278-6826,1521-7388
DOI: 10.1080/02786829508965320