[1] Key steps leading to the uptake of trace gases into atmospheric cloud ice particles include gas phase diffusion of trace gas molecules toward growing ice crystals and the kinetics of molecular interactions at the ice surfaces. In the case of nitric acid, laboratory studies and airborne field observations indicate uptake in growing ice films and cirrus ice particles above the thermodynamic s...

The paper presents the results of comparative analysis properties coatings based on chromium, nickel and iron borides. alloy obtained in process electron-beam surfacing powder mixture “amorphous boron – 10 wt.% chromium” has best properties. This is explained by structures, fine chromium borides Cr2B complex (Fe, Cr)2B, distributed austenitic matrix. material modified this way a nitric acid sol...

Rigorously standardized laboratory protocols are essential for meaningful comparison of data from multiple sites. Considering that interactions of minerals with organic matrices may vary depending on the material nature, there could be peculiar demands for each material with respect to digestion procedure. Acid digestion procedures were evaluated using different nitric to perchloric acid ratios...

A solar cell was manufactured from local materials and dyed using dyes extracted different organic plants. The glass slides were coated with a nano-porous layer of Titanium Oxide infused two types acids, Nitric acid Acetic acid. Pomegranate, Hibiscus, Blackberry Blue Flowers. They then tested comparison made for the amount voltage they generate when exposed to sunlight. Hibiscus sabdariffa extr...