Search results for "Atmospheric humidity"
showing 2 items of 2 documents
Littoral Dunes on Valencia Coast
2018
The dunes development needs an excess of sediment supply, wind speed able to transport sand to backshore and low atmospheric humidity. Foredunes, dunes fields and Pleistocene fossil dunes are the most characteristics features of the Valencian coast. Fossil dunes are abundant at the southern part. They are the main supply for the Holocene dunes and formed l’Altet field that survived thanks to be just in front of the L’Altet Airport. The foredunes have been mainly destroyed by human action and only few remains still are active. Guardamar and El Saler dune fields had a quite different evolution. Guardamar evolved covering previous fossil dunes and was fixed with pine trees to avoid the sand pr…
EFFECT OF MOISTURE ON THE BULK PROPERTIES OF SALTED POLY(CAPROAMIDE).
1980
The glass-transition temperature (Tg) and the elastic modulus of nylon-6 and its mixtures with 4% w/w LiCl and with 2% LiCl+3% LiBr were investigated. In one set of experiments care was taken to avoid absorption of moisture during the measurements. In another set of experiments, samples were exposed to atmospheric humidity for different lengths of time. Both unoriented and oriented specimens were investigated. The presence of 4% LiCl almost doubles the amount of moisture absorbed at equilibrium by nylon-6. The Tg was found to be greatly affected by the moisture content and by salt type. When strict precautions to exclude moisture are taken, the addition of 4% LiCl raises the Tg of nylon-6 b…