nitrogen is produced mainly from its most abundant source, the air, using three processes: membrane, pressure swing adsorption (psa) and cryogenic. the most common method for evaluating a process is using the selection diagrams based on feasibility studies. since the selection diagrams are presented by different companies, they are biased, and provide unsimilar and even controversial results. i...

an experiment was carried out to develop and evaluate a semi-purified diet suitable for fiber related studies without negative impacts on performance, serum biochemistry and intestinal morphology of growing japanese quails. total of 144 japanese quail chicks were used in a factorial arrangement using completely randomized design with 6 treatments, 4 replicates of 6 quails in each replicate. the...

Pile driving in low- to medium-density chalk is subject significant uncertainty. Predictions of “chalk resistance driving” (CRD) often vary considerably from field behaviour, with both pile refusals and free falls under zero load being reported. However, recent studies have led better understanding the processes that control wide range behaviour seen field. This paper describes primary outcomes...