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Filtering by: Committee Member Levien, Keith L. Decade 1990-1999 Language English [eng]

Supercritical fluid impregnation of wood-based composites

Creator:

Acda, Menandro N.

Resource Type:

Dissertation
Pressure measurement in wood as a method to understand impregnation processes : conventional and supercritical carbon dioxide

Creator:

Schneider, Philip F.

Abstract:

Two approaches to improving wood treatability include the modification of pressure schedules during conventional liquid treatments and the use of supercritical fluids (SCFs). In both of these techniques, pressure differences are important for transporting materials into wood. The level of pressure and its change during SCF treatments are also important...

Resource Type:

Dissertation
Areal distribution, change, and restoration potential of wetlands within the lower Columbia River riparian zone, 1948-1991

Creator:

Allen, Tracy Hunter

Abstract:

The lower Columbia River (LCR) riparian zone is rich in habitat diversity. However, the natural beauty and species diversity along the river have increasingly become affected by human activity. This study quantifies the areal extent and degree of wetlands change and associated causes along the LCR over the past 44...

Resource Type:

Dissertation