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
Pressed and dried plant specimens are useful as teaching aids and reference sources for plant identification, or as decorative material. Select plants to be mounted with care, prepare properly, and accompany by adequate, clearly expressed, written identification data. This publication suggests materials and methods for selecting and preparing plants for...
Pressed and dried plant specimens are useful as teaching aids and reference sources for plant identification, or as decorative material. Select plants to be mounted with care, prepare properly, and accompany by adequate, clearly expressed, written identification data. This publication suggests materials and methods for selecting and preparing plants for...
Lithia-silica compositions between lithium disilicate and pure
silica were explored theoretically and experimentally, with special
emphasis on structural miscibility. Diffusion couples of vitreous
materials were prepared and annealed. Best success in preparation
was achieved by using electron-bombardment heating in vacuum to
melt the less refractory glass and let it solidify...
Published April 1941. 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
Hygro-mechanical effect is a general term applied to all phenomena that involves interaction between moisture content and mechanical characteristics of hygroscopic materials by analogy to thermo-mechanical effects. The hygromechanical effects include (but are not limited to) free shrinkage/swelling, effect of moisture on elastic modulus, strength, creep, failure mechanisms, and mechano...