Browsing by Supervisor "Wilson, Marcus T."
Now showing items 1-11 of 11
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A calibrated dual-port acoustic Vector Network Analyser
(The University of Waikato, 2022)The Vector Network Analyzer (VNA) is a workhorse in electrical engineering, and has been refined over the last fifty years to offer many advantages. This technology is continually expanding and branching into other fields ... -
Design and demonstration of a mouse-specific Transcranial Magnetic Stimulation coil in-vitro
(The University of Waikato, 2021)In Transcranial Magnetic Stimulation, rapid electromagnetic fields (EM) are applied to the brain. The fundamental effects of TMS are poorly understood so we need smaller coils to perform invasive measurements on mice. Based ... -
Investigating the dynamics of a population of spiking neurons across spatial scales
(The University of Waikato, 2021)Mean-field models describe bulk neural activity in terms of population-average action potential (spike) rates, but do not attempt to address the variations in the firing activity of individual neurons and the interactions ... -
Simulation, measurement, and design of multi-electrode spinal cord stimulation Leads with a focus on MRI safeness and stimuli induced artefacts
(The University of Waikato, 2019)The electromagnetic (EM) and thermodynamic (TD) models for a Spinal Cord Stimulator (SCS) presented in this work, permit on one hand to analyse the impact of electrical stimuli patterns on artefacts and on the other hand ... -
Implantable electrode structures and their RF effects in MRI machines
(The University of Waikato, 2019)Medical implants incorporating long insulated conductors can generate a serious heating hazard to a patient undergoing a Magnetic Resonance Imaging (MRI) scan. Under the high-power RF field from an MRI machine, the conductors ... -
Laser-induced breakdown spectroscopy applied to pasture, titanium, and bioplastics
(The University of Waikato, 2018)Precision agriculture is a farming practice that makes production more efficient. Farmers are able to treat infield variability optimising efficiency, growth, and yield by tailoring the time, rate, and type of fertilizer ... -
The Electrical Properties of Interfacial Double Layers
(University of Waikato, 2016)When solids and liquids are brought together, interfacial double-layers are likely to form. They are too small to feel or see so their presence goes mostly unnoticed at the macroscopic level. A double layer is essentially ... -
Dynamics and precursor signs for phase transitions in neural systems
(University of Waikato, 2014)This thesis investigates neural state transitions associated with sleep, seizure and anaesthesia. The aim is to address the question: How does a brain traverse the critical threshold between distinct cortical states, both ... -
Application of Nonlinear Transistor Characteristics
(University of Waikato, 2014)This research presents three works all related by the subject of third-order distortion reduction in nonlinear circuits. Each one is a novel extension to previous work in that branch of electronics literature. All three ... -
Analysis of pattern dynamics for a nonlinear model of the human cortex via bifurcation theories
(University of Waikato, 2014)This thesis examines the bifurcations, i.e., the emergent behaviours, for the Waikato cortical model under the influence of the gap-junction inhibitory diffusion D₂ (identified as the Turing bifurcation parameter) and the ... -
Electrical Conductivity of Brain Cortex Slices in Seizing and Non-seizing States
(University of Waikato, 2013)The electrical conductivity of thin living slices of mouse cerebral cortex is measured. Two only out of fifteen different attempting ways were effective. I have successfully measured the electrical conductivity of mouse ...
