The mechanical properties of materials at cryogenic temperatures
have been the subject of increasing interest during the past few
years, although very little actual materials testing has been done at
extremely low temperatures because of the high cost and low heat of
vaporaization of liquid helium. Recently, the Department of...
The sudden failure of metal structures under load, which has
been a design problem for many years, is characterized by a crack
propagation rate which approaches the speed of sound in the material.
These failures, which are often known as catastrophic fractures,
may be divided into two types which depend...
This thesis describes the results of a linear stability analysis conducted on a simulated wind-forced ocean front. The ocean surface boundary layer regulates exchanges between the ocean and atmosphere, and the presence of turbulence in the surface layer can greatly impact climate and ocean life. Past research has shown that...
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Roger M. Samelson Eric D. Skyllingstad
ABSTRACT
This thesis describes the results
The toxicity of aluminum (Al) to wheat (Triticum aestivum
Host) was studied under controlled conditions using a technique
designed to evaluate the recovery of root growth following a relatively
brief (48 hour) exposure to nutrient solutions containing
Al, When wheat seedlings were exposed to a minimum critical
concentration of Al,...
The time-concentration interaction of Al toxicity in the root
meristems of Brevor wheat was studied using the L.D. 50 as a criteria
for Al damage. The L.D. 50 represented a precise, well defined
degree of biological damage which was easily reproduced under conditions
where factors like temperature, pH, nutrient concentration,...
Three studies were designed to evaluate the promoting
effect of cyclopropenoid fatty acids (CPFA) on avian myeloblastosis
virus (AMV) infection in White Leghorn chickens.
In the first study effects on growth parameters, blood serum
and erythrocyte lipid composition of White Leghorn chickens
were investigated at 100 ppm and 300 ppm...
Three studies were conducted to evaluate the relationship between
insulin and nutritional parameters in rainbow trout. In the first study
effects on growth parameters and tissue composition of rainbow trout were
investigated following injection of bovine insulin at two dose levels
every 48 hr for 56 days. In addition, [¹⁴C]-leucine...
