Heat transfer in soils

Part 1 of ebook "Water in road structures: Movement, drainage and effects" provides readers with content including: water flow theory for saturated and unsaturated pavement material; measurement techniques for water flow; heat transfer in soils; water in the pavement surfacing; sources and fate of water contaminants in roads; contaminant sampling and analysis; water influence on bearing capacity and pavement performance: field observations;...

264p dieptieuung 19-07-2023 2 2   Download

An inert gas is bubbled through a 5 mL water sample contained in a specially-designed purging chamber at ambient temperature. The purgeables are efficiently transferred from the aqueous phase to the vapor phase. The vapor is swept through a sorbent trap where the purgeables are trapped. After purging is completed, the trap is heated and backflushed with the inert gas to desorb the purgeables onto a gas chromatographic column. The gas chromatograph is temperature programmed to separate the purgeables which are then detected with a mass spectrometer....

12p cao_can 02-01-2013 60 3   Download