The Drop Size Spectra Method For Estimating The Mass Median Diameter Of Aerial Sprays Classic Reprint
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| Author | : Bohdan Maksymiuk |
| Publisher | : Forgotten Books |
| Total Pages | : 20 |
| Release | : 2018-03-30 |
| Genre | : |
| ISBN | : 9780365706878 |
Excerpt from The Drop Size Spectra Method for Estimating the Mass Median Diameter of Aerial Sprays This paper reports a study to develop a method that can be used for this purpose. It incorporates some elements of the procedure for drop size sampling published by Thornton and Davis (1956) About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
| Author | : Bohdan Maksymiuk |
| Publisher | : |
| Total Pages | : 16 |
| Release | : 1964 |
| Genre | : Aerial spraying and dusting in agriculture |
| ISBN | : |
| Author | : Bohdan Maksymiuk |
| Publisher | : |
| Total Pages | : 9 |
| Release | : 1964 |
| Genre | : |
| ISBN | : |
| Author | : |
| Publisher | : |
| Total Pages | : 11 |
| Release | : 1964 |
| Genre | : |
| ISBN | : |
| Author | : Alfred Henry Yeomans |
| Publisher | : |
| Total Pages | : 8 |
| Release | : 1949 |
| Genre | : Aerosols |
| ISBN | : |
| Author | : KMS Sundaram |
| Publisher | : |
| Total Pages | : 15 |
| Release | : 1996 |
| Genre | : Aerial spray deposit |
| ISBN | : |
An aqueous emulsion of permethrin containing a water-soluble red dye was applied at a dosage rate of 70 g of the active ingredient in 4.0 L per ha, using a Cessna 188B aircraft (equipped with 4 x AU3000 Micronair® atomizers), over a 400 m x 400 m spray block in Thessalon in northern Ontario, Canada. Spray mass recovery was assessed on glass plates at ground level and droplets were collected on Kromekote® cards. The stain sizes were grouped into different categories. The area containing the stains were excised and permethrin was extracted. The mass of permethrin present in the extract was determined by gas-liquid chromatography (GLC). The average mass per droplet in each size category was calculated. The mass (of permethrin) median diameter (DM.5) and volume median diameter (DV.5) at the spray release height were computed. The present method showed, for the first time in literature, the advantage of not having to use the conventional tedious procedures to determine spread factors to arrive at the DM.5 and DV.5 values.
| Author | : F. W. Skidmore |
| Publisher | : |
| Total Pages | : 60 |
| Release | : 1979 |
| Genre | : Drops |
| ISBN | : 9780642897121 |
Qualitative comparisons have been made of water drop sampling methods for sprays and clouds, employing slides coated with oil, gelatin and soot. Oil-wetted and soot coated slides have been compared quantitatively when exposed in nominally identical water sprays simulating natural clouds. When compared with gelatin and oil-wetted slides, soot slides are more convenient to prepare, expose and analyse, and records are permanent. Within the inherent limitations of all spray sampling methods, drop size distributions and mean drop sizes given by the oil and soot methods are in substantial agreement, provided that known sources of error of the oil-wetted method are allowed for. Soot slides appear to be capable of detecting ice particles in clouds, quantitative calibrations relating ice impingement impressions to crystal si e are required.
| Author | : G. A. Hill |
| Publisher | : Ralston, Alta., : Defence Research Establishment Suffield |
| Total Pages | : 26 |
| Release | : 1981 |
| Genre | : |
| ISBN | : |
| Author | : Moatasim Mohamed Sid Ahmed |
| Publisher | : |
| Total Pages | : 350 |
| Release | : 1987 |
| Genre | : Drops |
| ISBN | : |
| Author | : J. Monaghan |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 1981 |
| Genre | : Drops |
| ISBN | : |
"Formulae are derived to calculate the mass median (DO) and mass mean (DM) diameters of droplets in sprays. These formulae are based on an inverse exponential relationship which is empirically observed to occur in liquid sprays. The median diameter divides the total mass of liquid in half while the mean diameter represents a more commonly used statistical average for identifying random samples. The formulae are used to describe the characteristics of a typical set of experimental drop data and are compared to conventional formulae for calculating these parameters"--abstract.
