Sinks, plant organs which depend on the import of assimilates
for growth, play a central role in determining assimilate distribution
patterns within the plant. The strawberry fruit is a strong
sink for dry matter and its effect on carbon partitioning and
assimilation in the plant as well as the mechanism...
Channel maintenance operations in the rivers and harbors of the
United States annually require the disposal of over 320 million cubic
meters of dredge spoils. As the availability of suitable land sites
diminishes, open water disposal presents an attractive yet controversial
alternative method. For open water disposal to be acceptable,...
Hydraulic dredging is and most certainly will remain a primary
means of maintaining and improving ship channels and for land
reclamation in near-shore water. The study of which this thesis
describes a part is intended to develop a method of predetermining the
immediate disposition of sand spoils from hydraulic dredging...
The purpose of the study was to assess county extension agents'
knowledge of geotextiles; to determine their current level of
information and their location on an adoption-diffusion curve; and to
determine the agents' attitudes toward the potential use of
geotextiles in agriculture, specifically in soil erosion control.
A questionnaire was...
Landslides are frequent in the steep forested regions of the Oregon
and Washington coastal mountain ranges. The need for forest products
has resulted in increasing logging activity in these marginally stable
areas. The occurrence of landslides has increased, which in turn has
focused greater interest in slope stability management.
The classic treatment of diffusion by Einstein and by Chandrasekhar assumed
conservative boundary conditions; mobile species were neither created nor destroyed
on the sample surface. It is normal to assume that vacancies and host interstitials are
created and annihilated on incoherent interfaces or free surfaces; i.e., these are