Reforestation of Pacific Northwest forest-lands with western hemlock has been hindered by unexplained plantation failures.
The purpose of this thesis is to provide information that will help in determining the cause of seedling damage and mortality. The studies focused on the relationship between xylem water potential, xylem cavitation and the...
Two applications of beta spectrometry using active
gamma-ray discrimination are described. The beta spectra
of smears taken at a nuclear power plant at the end of a
300 day shutdown were characterized. The average beta
energy at "contact" (1.5 cm) was between 450 and 550 keV
for locations influenced by...
Large inelastic strain occurs inside a piece of lumber during drying. The strain consists of several components such as elastic, plastic, creep, shrinkage and mechano-sorptive effect. The mechanical behavior of the whole board during drying is determined by the behavior of individual strain components and their interactions. Whereas limited investigations...
