Generally, the groundwater pumped from wells is safe to drink. As water moves through layers of soil to reach the underground aquifer, disease-causing organisms such as bacteria and viruses are filtered out or eaten
by tiny soil animals. Many harmful chemicals also are broken down in the soil before they...
Published October 1991. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Por lo general, el agua subterránea extraída de los pozos de agua es buena para beber. A medida que el agua pasa por las diferentes capas del suelo se va purificando poco a poco. Los organismos que causan enfermedades, como bacteria y viruses, van siendo filtrados y digeridos por animalitos...
The objective of this study was to investigate the production of SO₂ and SO₂ binding compounds by wine
yeast and the impact of the production of these compounds on the MLF at various time points during
alcoholic fermentation. Fermentations were observed for a number of commercial wine yeasts in a...
Optimal well placement and optimal well control are two important areas of study in oilfield development. Although the two problems differ in several respects, both are important considerations in optimizing total oilfield production, and so recent work in the field has considered the problem of addressing both problems jointly. Two...
We consider flow-structure interactions modeled by a modified wave equation coupled at an interface with equations of nonlinear elasticity. Both subsonic and supersonic flow velocities are treated with Neumann type flow conditions, and a novel treatment of the so called Kutta-Joukowsky flow conditions are given in the subsonic case. The...
The Oregon 4-H Youth Development Program believes in the right
of every child to a safe and nurturing environment. Actions against
children that contribute to child abuse or neglect are contrary to the
values of the Oregon 4-H Youth Development Program. We oppose such
actions in all settings.
People who...
Firn air transport models are used to interpret measurements of the composition of air in firn and bubbles trapped in ice in order to reconstruct past atmospheric composition. The diffusivity profile in the firn is usually calibrated by comparing modelled and measured concentrations for tracers with known atmospheric history. However,...
Open Educational Resources (OER) are increasingly used
in the higher education landscape as a solution for a variety of
copyright, publishing and cost-prohibiting issues. While OERs are
becoming more common, reports of usability tests that evaluate how
well learners can use them to accomplish their learning tasks have
lagged behind....