This thesis presents the design of various controllers for a highly maneuverable, high performance aircraft, namely the modified F-18. The aircraft was required to perform high angle-of-attack maneuvers, for which the aircraft behaves in as a highly nonlinear system. An adaptive PID controller was used to control the aircraft through...
Since the early twentieth century, manufacturers of toxic products have attempted
to discredit research linking their product with disease. At the same time they have manufactured their own science designed to minimize risks associated with their products. Much of this activity has been conducted by or through corporate attorneys, endeavors...
The generalized variational principle of Herglotz defines the functional whose extrema are sought by a differential equation rather than an integral. It reduces to the classical variational principle under classical conditions. The Noether theorems are not applicable to functionals defined by differential equations. For a system of differential equations derivable...
Seven red raspberry (Rubus Ideaus L.) samples from Oregon, Washington, British Columbia and New Zealand were processed into juice. These, along with three juice samples supplied from West Germany were analyzed by high performance liquid chromatography, (HPLC), for nonvolatile acid, sugar, anthocyanin and anthocyanidin composition. In
order to quantitate the...
Quantity variations in pigments and lipid classes were determined
following γ-irradiation of Micrococcus radiodurans, Sarcina
lutea, and Pseudomonas aeruginosa.
Pigmentation was determined by extraction with organic solvents
and measured as optical density at 475 mμ for M. radiodurans
and S. lutea, and 410 mμ for Ps. E aetuginosa. Pigments of...
A recent development in drift-control for agricultural ground sprayers is the
installation of a hood (or shroud) over the boom. Hoods are designed to provide
a protected zone in which droplets can be sprayed and deposited on the target with
limited interference from the wind.
This study compared chemical drift...
The study critically analyzes the implication of various agricultural
development policies on urban unemployment and income distribution.
More specifically it focuses on the evaluation of agricultural
policies at the macro-economic Level in the Nigerian economy.
A system science and simulation approach is used to build and
test a ten sector...
The study of the diversity of multivariate objects shares common characteristics across disciplines, including ecology and organizational management. Nevertheless, experts in these two disciplines have adopted somewhat separate diversity concepts and analysis techniques, limiting the ability of potentially sharing and cross comparing these concerns. Moreover, while complex diversity data may...
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...