This dissertation describes the cloning and characterization of the TOUSLEDlike kinases genes of maize (ZmTLKs). The TOUSLED-like kinases (TLKs) are a conserved family of nuclear Ser/Thr kinases in higher eukaryotes. The maize genome has three TOUSLED-like kinase genes (ZmTLK1, ZmTLK2, and ZmTLK3). Based upon sequence similarity, the ZmTLKs are divided...
Three experiments were conducted to determine the influence
of supplementary biotin and of other nutrients on dermatitis and
hatchability in both normal-size and dwarf Single Comb White Leghorn
layers.
Experiment One was divided into two parts. First, preliminary
hatchability studies were conducted with both types of layers fed
the rations...
The analysis of rigid hub, three-bladed horizontal-axis,
axisymmetric wind turbines in yaw is made using a linearized,
four-degree-of-freedom model. The linearized equations of motion of
rotor and nacelle are developed using quasi-steady blade element
theory and Lagrange's equations.
The yaw behavior of the system is studied from coefficients of
the...
Ghana's coast is identified with artisanal fishers who use wooden carved canoes and traditional fishing gears. However, little study has been conducted to assess the performance of this industry in terms of its efficiency. This study aims to analyse the technical efficiency and its determinants of the artisanal fishers in...
The ATRIAS agile humanoid robot, along with a number of other spring-mass walking
machines, currently have two instabilities: one resulting from inertial forces on the torso
which cause the robot to spin like a top, and another resulting from stiff ground collisions
which cause chattering of the point-contact toes. This...
The trajectory of aquaculture growth in sub-Saharan Africa has necessitated closer attention to the use of environmental best management practices (BMPs). Two BMPs in particular, water reuse and floating feeds, are being promoted for adoption by pond fish farmers in sub-Saharan Africa. In this study, we investigated: (1) the effect...
Forest health issues are on the rise in the United States, resulting from introduction of alien pests and diseases, coupled with abiotic stresses related to climate change. Increasingly, forest scientists are finding genetic/genomic resources valuable in addressing forest health issues. For a set of ten ecologically and economically important native...
The design of a competition-winning aero package must consider multiple vehicle attitudes. Aerodynamic concepts simulated in heave, pitch, roll, high-speed yaw, and low-speed yaw to design a stable and predictable aero package. The methodology automates the simulation setup process of five vehicle attitudes. The overall and subsystem force coefficients are...
This thesis presents a method for determining range
of body motion for a walking machine with feet fixed on
the ground. The darkling beetle was selected as the
sample subject in this study.
A closed form inverse kinematic solution is used to
determine if a point in space is within...