Analytical and numerical study of steady-state laminar natural
convection and conduction has been performed for an enclosure between
concentric vertical cylinders. The inner and outer cylinders were
isothermal, and the connecting top and bottom walls were adiabatic. A
concentric baffle was included in the annulus, and the flow field and...
Cytokinin oxidase activity in callus tissues of
Phaseolus vulgaris L. cv. Great Northern has been examined
using an assay based on the oxidation of radioactively
labeled N⁶ -(Δ² -isopentenyl) adenine (i⁶Ade) to adenine
(Ade). Conditions for the quantitative extraction and
assay of the enzyme have been established. The substrate
specificity...
This thesis is a rhetorical analysis of sexual harassment codes on college and
university campuses. The situational model proposed by Lloyd Bitzer is used to examine
representative artifacts from Rice University in Houston, Texas, and Oregon State
University in Corvallis, Oregon, so as to determine whether they operate as "fitting"...
Extensive research has been devoted to evaluating potential
genotype-environment interactions. However, plant breeders are still in
need of a simple way to describe how genotypes respond to different
locations and years. In an environmentally diverse state like Oregon,
significant genotype-environment interactions do occur The resulting lack
of association between actual...
Studies of light-matter interactions in organic semiconductors and in optical tweezer trapping of nanoparticles are presented. In the research related to organic semiconductor materials, a variety of novel materials and their composites have been characterized, and physical mechanisms behind their optoelectronic properties have been established. Three novel functionalized hexacene derivatives...
The objective of this research is to understand the behavior of metal-plate-
connected (MPC) joints by examining actual MPC truss heel and tension
splice joints subjected to hurricane wind load simulations and impact loads.
A hurricane wind load simulation was applied to MPC heel joints to
determine if a large...
Warming of the terrestrial biosphere due to the anthropogenic addition of carbon dioxide to the earth’s atmosphere is becoming a major focus of scientific inquiry. Predictions of the extent of this warming are hampered by uncertainty in the ability of the earth’s ecosystems to counteract this effect by sequestering carbon...
The ability of white and brown rot fungi to colonize wood-plastic composites was investigated by measuring weight loss and anatomical changes. Three composite materials were evaluated. The material containing a 70/30 wood-high density polyethylene (HDPE) mixture was most susceptible to fungal attack, while two different 50/50 wood-HDPE composites experienced little...
We examined the multivariate life-history trajectories of age 0 and age 1 female Gambusia affinis to determine relative effects of age-based and environment-based cues on reproductive investment. Age 0 females decreased reproductive investment prior to the onset of fall and winter months, while age 1 females increased reproductive investment as...
