Described in this thesis is an investigation of the fully developed natural convection
heat transfer in a vertical channel formed by two infinitely wide parallel plates
maintained at a uniform wall temperature. Closed-form solutions for the velocity
and temperature profiles are developed along with local and averaged Nusselt
numbers. The...
Examination of a proposed reaction scheme to prepare bicyclo-(2.2.0)hexan-1-ol produced the first known condensation of an
enamine with its carbonyl precursor. Hydrolysis of the resulting
dienamine gave an unusual conjugated cyclobutenone in which the
double bond is exocyclic. Characterization and reactions of the
cyclobutenone were successfully carried out.
The purpose of this investigation was to purify and characterize
the autolytic enzyme from cell walls of Bacillus subtilis 168. The
crude enzyme was obtained by autolysis of purified cell walls in
buffer at 37° C. Two purification methods were developed. The first
involved fractional precipitation with ammonium sulfate. The...
Hydrogels have been proposed as candidates for nucleus pulposus replacement due to
their similarity in mechanical behavior to the native tissue when subjected to transient or
static loading; however, given the viscoelastic nature of soft biological tissues, the lack of
dynamic testing is a significant inadequacy in the studies performed...
Sodium hyaluronate (HA) is a polysaccharide found in all parts of the body
Although it performs important functions in the eye, the coagulation process
and other parts of the body, its contribution to synovial fluid is particularly
important. As the major component of synovial fluid, HA is responsible for
the...
The goal of this thesis was to develop a process of producing small monodisperse
alginate gel beads. The phenomenon of controlled jet break-up of alginate solution jet
with assisted vibration was used to form uniform sodium alginate droplets which were
subsequently crosslinked with divalent calcium ion to form gel beads....
The natural gas industry has become essential in many areas in the United States. Currently there is over 37.5 million miles of natural gas distribution lines. A large majority of these lines are polyethylene pipes. With such a large percentage of polyethylene lines in use gas companies are continually looking...
In recent years, there has been an increased interest in accurately measuring physical activity levels with accelerometers. Two distinct approaches have been used to estimate physical activity levels with accelerometers are vertical axis activity counts and vector magnitude (VM). Although previous studies evaluated these two distinct approaches for individuals without...
The importance of physical activity is well documented (Haskell et al., 2009a; McReynolds & Rossen, 2004; Steinbeck, 2001). Despite physical activity’s benefits, many individuals are not meeting current weekly physical activity guidelines recommending ≥ 150 minutes of moderate or ≥ 75 minutes of vigorous aerobic physical activity and 2 or...