The fortification of a growth medium for Micrococcus radiodurans
with N-Z -Case (a pancreatic digest of casein) resulted in a decrease
in pigmentation and resistance to ultraviolet-irradiation. The
decreased resistance was exhibited on the survival curve as a reduction
in the extrapolation number from ~300 to ~20 with little change...
This is a report describing the limitations of optical character
recognition using the mask-matching principle. Conclusions
are supported by the results of an experimental system built for
the purpose of reduction to practice.
Formulas are derived describing the limitations of a mask-matching system. Given desired character reading speed, a specified...
Pronghorn (Antilocapra americana) use of four playas (intermittent lakebeds) on Hart Mountain National Antelope Refuge (NAR) in south central Oregon was studied during the summers of 1974 and
1975. Percent canopy cover of playa vegetation, plant phenology, percent desiccated vegetation, soil moisture, available surface water and pronghorn use of range...
A laboratory-prepared hot-water extract of yeast is required
for vigorous growth of San Francisco sourdough bacteria (Lactobacillus
sanfrancisco) in pure culture. This requirement was examined
with the goal of determining what is unique about fresh yeast extractives
(commercial extractives exhibit much lower growth promoting
activity), and which components of fresh...
Landscape positions have been used to determine soil properties. My soil study in Monteverde on the Pacific slope of Costa Rica was designed to examine soil-landscape relationships for sites with various land use histories and management. Soil pits were dug at Nacimiento y Vida, Crandell, Curi-cancha, La Calandria, and Finca...
In sonar or radar array processing, one of the most important objectives is to estimate the angles of incidence of distant source signals in a noisy environment. The standard eigenstructure-based method, which is known to yield high resolution spectral estimates for solving the direction finding problem, relies on the assumption...
Frozen Marion (Rubus sp. hyb) and Evergreen blackberries (Rubus laciniatus) (whole berries, berries without seeds, and seeds alone) were acetone/ chloroform extracted. Phenolics were isolated using C₁₈ cartridges and polyamide resins, then characterized and measured by reversed-phase HPLC/diode array spectral techniques. The Polyamide isolated fractions of Marion berries contained four...
We discuss a mathematical model arising in the filtration of a
fluid through a porous medium. The model leads to a free boundary
value problem whose governing equation depends on the retention
function. A numerical approximation by means of finite elements
is used to present an existence and uniqueness theorem...
In light of the current world-wide energy situation,
the utilization of the immense reserves of geothermal
energy is being actively pursued. The thermal energy contained
in a geothermal reservoir is mainly stored in rocks,
but is also held in liquid water and/or steam. The generation
of electrical power from these...