Three experiments whose objectives were to investigate cover
crop kill by winter freeze, weed suppression by 'Micah' barley and
other spring cereals, and allelopathic potential of cereal covers
were conducted at the Vegetable Research Farm and in the greenhouse
and growth chamber facilities at OSU in 1989/90. Kill by winter...
The study involved three separate research efforts
in which 10 Holstein calves and 85 purebred Hampshire and
Suffolk ewe and ram lambs were employed. The objectives of
the experiments were to characterize appetite, describe its
inheritance and evaluate its associations with animal
performance.
In the calf experiment, appetite was determined...
I. The Effect of Artificial Photoperiod on Eating Behavior and Other
Behavioral Observations of Dairy Cows.
Twenty-eight cows were randomly assigned to a dairy photoperiod of
18 h light and 6 h darkness or to continuous light and observed 1 d each
month from December 1981 to February 19.82. Lighting...
The erratic behavior of the room temperature yield strength of
high purity commercial tantalum sheet was studied. Critical factors
in the production process were postulated and then investigated to
determine their effects on strength properties. Chemical composition
was found to be the most important factor contributing to the strength;
thermomechanical...
Samples of commercial purity titanium were heat treated above the
beta transformation temperature and within the two phase alpha-beta
phase field, followed by cooling at varying rates. Testing of the
samples in tension and by instrumented impact indicated that some
strengthening could be imparted by these heat treatments, although at...
Pelargonium graveolens Ait., rose geranium, contains several oxygenated monoterpenes, most of which are related to each other structurally. In this work, the metabolism and interconversions of these terpenes was investigated. A chromatographic analysis of geranium oil was performed initially for the purposes of identifying the terpenes and determining which chromatographic...
The location of a lactating mouse in a cage of two compartments,
a nest area and a larger wire cage, was continuously recorded for ten
days after parturition. Three experimental groups within each of two
inbred lines, A/J and C57BL/6J, were tested: first generation,
unfostered; second generation, unfostered; and second...
A method for measuring the spark-shower radiance of metals
when abraded on an abrasive grinding wheel was developed for
evaluating their sparking tendency. One hundred metals were tested
and rated relative to commercially pure iron. The radiance was
measured in units of energy per solid angle per area of the...