15 Publications
2023
Segmental Tissue Resistance of Healthy Young Adults during Four Hours of 6-Degree Head-Down-Tilt Positioning
Freeborn, Todd J⋅Freeborn, Todd J⋅Critcher, Shelby and Hooper, Gwendolyn
Sensors, vol. 23, (no. 5), 2023. | Journal Article
2021
Localized Bioimpedance Measurements with the MAX3000x Integrated Circuit: Characterization and Demonstration
Freeborn, Todd J
Sensors, vol. 21, (no. 9), 2021. | Journal Article
2020
A Comparative Study of Two Fractional-Order Equivalent Electrical Circuits for Modeling the Electrical Impedance of Dental Tissues
Herencsar, Norbert⋅Freeborn, Todd J⋅Kartci, Aslihan and Cicekoglu, Oguzhan
Entropy, vol. 22, (no. 10), 2020. | Journal Article
2019
Performance evaluation of raspberry Pi platform for bioimpedance analysis using least squares optimization
Freeborn, Todd J
Personal and Ubiquitous Computing, pp. 1-7, Feb 2019. | Journal Article
 
Rates and Effects of Local Minima on Fractional-Order Circuit Model Parameters Extracted from Supercapacitor Discharging Using Least Squares Optimization
Freeborn, Todd J and Elwakil, Ahmed S
Circuits, Systems, and Signal Processing, vol. 38, (no. 5), pp. 1907-1922, May 2019. | Journal Article
 
Residual impedance effect on emulated bioimpedance measurements using Keysight E4990A precision impedance analyzer
Fu, Bo and Freeborn, Todd J
Measurement, vol. 134, Feb 2019. | Journal Article
2018
Estimating Localized Bio-impedance with Measures from Multiple Redundant Electrode Configurations.
Fu, Bo and Freeborn, Todd J
Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference, vol. 2018, pp. 4351-4354, July 2018. | Journal Article
 
Evaluation of ImpediMed SFB7 BIS device for low-impedance measurements
Freeborn, Todd J⋅Milligan, Ashley and Esco, Michael R
Measurement, vol. 129, Dec 2018. | Journal Article
 
Fatigue-Induced Cole Electrical Impedance Model Changes of Biceps Tissue Bioimpedance
Freeborn, Todd J and Fu, Bo
Fractal and Fractional, vol. 2, (no. 4), 2018. | Journal Article
 
Ultra-shortened time-domain HRV parameters at rest and following exercise in athletes: an alternative to frequency computation of sympathovagal balance
Esco, Michael R⋅Williford, Henry N⋅Flatt, Andrew A⋅Freeborn, Todd J and Nakamura, Fabio Y
European Journal of Applied Physiology, vol. 118, (no. 1), pp. 175-184, Jan 2018. | Journal Article
2016
Compact Wide Frequency Range Fractional-Order Models of Human Body Impedance against Contact Currents
Freeborn, Todd⋅Elwakil, Ahmed and Maundy, Brent
Mathematical Problems in Engineering, 2016. | Journal Article
 
Reevaluation of Performance of Electric Double-layer Capacitors from Constant-current Charge/Discharge and Cyclic Voltammetry
Allagui, Anis⋅Freeborn, Todd J⋅Elwakil, Ahmed S and Maundy, Brent J
Scientific Reports (Nature Publisher Group), vol. 6, pp. 38568, Dec 2016. | Journal Article
2015
Approximated Fractional Order Chebyshev Lowpass Filters
Freeborn, Todd⋅Maundy, Brent and Elwakil, Ahmed
Mathematical Problems in Engineering, 2015. | Journal Article
 
Fractional-order models of supercapacitors, batteries and fuel cells: a survey
Freeborn, Todd J⋅Maundy, Brent and Elwakil, Ahmed S
(pp. 1-7). Jun 2015
2014
Extracting the parameters of the double-dispersion Cole bioimpedance model from magnitude response measurements
Freeborn, Todd J⋅Maundy, Brent and Elwakil, Ahmed S
Medical and Biological Engineering and Computing, vol. 52, (no. 9), pp. 749-58, Sep 2014. | Journal Article