Applying to boson systems the time-dependent variational principle of Balian and Veneroni, we derive approximate methods for calculating expectation v...
The polymerization of 1-hexyne, 3-methyl-1-pentyne, 4-methyl-1-pentyne, and tert-butylacetylene was carried out with the following Ziegler-Natta type...
Sediment samples were collected at 33 stations from Algiers Bay to determine potential sources of pollution. The analyses were made with X-ray fluores...
Convergence acceleration processes are known to be well conditioned for alternating sequences and ill conditioned for monotonic ones. The aim of this...
The fatigue propagation of a semi-elliptical surface crack in a pipe subjected to internal pressure is always an open question in spite of a number of...
