Application of Electron Microscopy on Volcanic Ash

Hygroscopic Properties of Volcanic Ash

Limited observational data exists on the physical interactions between volcanic ash particles and water vapor; yet it is thought that these interactions can strongly impact the microphysical evolution of ash, with implications for its atmospheric lifetime and transport, as well as formation of water and ice clouds. In this study, we investigate for the first time, the hygroscopic properties of ...

Electromagnetic Characterization of Volcanic Ash

An open-ended coaxial probe is designed for making permittivity measurements on volcanic ash. Reference liquids such as water and methanol are used for calibrating the probe, whose input admittance is related to the complex permittivity by Marcuvitz integral. The reflection coefficient of the probe in the presence of volcanic ash samples from Etna volcano, Italy, is measured from 1 to 15 GHz an...

Electron Microscopy of Fowl Pox Virus

Examination of Lung Parenchyma by Electron Microscopy

In this paper many of the principal struc­ture of the Moral Lung were studied with the help of Electron Microscopy. Detailed descrip­tion was given of Granular Pneumocytes, Membranous Pneumocytes, Macrophages, and Alveolar Capillaries. A discussion followed on the form and function of Granular Pneumo­cytes.  Acknowledgements  I am grateful to the Reza Shah Pahlavi Foundation for its generou...

Application of Scanning Electron Microscopy

The value of t he scanning e lec t ron microscopy i n p rov id ing i n s i t u i n fo rma t ion on t h e microst ructure o f ma te r ia l s such as coal I s we l l known. m a r t i c u l a r l y su i ted for examining the f i n e l y d i s t r i b u t e d mineral p a r t i c l e s found i n f ine ly-ground coal. data can be provided. c a l analysis t o be performed on these minute features, thu...