Jerris W. Hooker
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View article: Application of Counter-Wound Multi-Arm Spirals in HTS Resonator Design
Application of Counter-Wound Multi-Arm Spirals in HTS Resonator Design Open
Significant sensitivity improvements have been achieved by utilizing high temperature superconducting (HTS) resonators in nuclear magnetic resonance (NMR) probes. Many nuclei such as 13C benefit from strong excitation fields which cannot b…
View article: Feedback-seeking Behaviors
Feedback-seeking Behaviors Open
This paper is an exploratory study on students’ beliefs and feedback-seeking behaviors. Students believe that developing their engineering-identity involves cultivating their technical skills and they rely on feedback to provide competence…
View article: Effects of Dielectric Substrates and Ground Planes on Resonance Frequency of Archimedean Spirals
Effects of Dielectric Substrates and Ground Planes on Resonance Frequency of Archimedean Spirals Open
Superconducting self-resonant spiral structures are of current interest for applications both in metamaterials and as probe coils for nuclear magnetic resonance (NMR) spectroscopy for high-sensitivity chemical analysis. Accurate spiral mod…
View article: An Empirical Expression to Predict the Resonant Frequencies of Archimedean Spirals
An Empirical Expression to Predict the Resonant Frequencies of Archimedean Spirals Open
This work presents an empirical formula to accurately determine the frequencies of the fundamental and higher order resonances of an Archimedean spiral in a uniform dielectric medium in the absence of a ground plane. The formula is based o…