Journal Articles

Gerling, G., and Thomas, G. (2004), " Augmented, Pulsating Tactile Feedback Facilitates Simulator Training of Clinical Breast Examinations," Human Factors and Ergonomics Society Paper, 2004.

Xiang, Z., Thomas, G., Cabrol, N., Grin, E., and Anderson, R.C., Slope perception from monoscopic field images: applications to mobile robot navigation,” IEEE Systems, Man and Cybernetics, Part A (submitted April, 2004).

Wagner, J., Thomas, G., Glasgow, J., Cabrol, N., Grin, E., and Anderson, R.C., The Accuracy of Sediment Size, Shape, and Distribution Measurements from Robotic Geological Images,” IEEE Transactions on Systems, Man and Cybernetics, Part A (submitted in January 2004).

Wagner, J., Thomas, G., and Stanford, C., (2003), “Forces Exerted by a Conventional Dental Explorer during Clinical Examination,” Carries Research, 37: 365-368.

Thomas, G., Gerling, G., Alicia, M., and Dove, E., (2002), " Effectiveness of a dynamic breast examination training model to improve clinical breast examination (CBE) skills," Cancer Detection and Prevention, 27 (6): 451-456 2003.

Thomas, G., Johnson, L., Dow, S. and Stanford, C., (2001), "Design and Testing of a Force Feedback Dental Simulator," Computer Methods and Programs in Biomedicine, 64(1): 53-64

Johnson, L., Thomas, G., Stanford, C., and Dow, S. (2001), "A Formative Evaluation of a Dental Surgical Simulator," Journal of Dental Education, 12: 847.

Cabrol, N. A.; Bettis, E. A., III ; Glenister, B. ; Chong, G. ; Herrera, C. ; Jensen, A. ; Pereira, M. ; Stoker, C. R. ; Grin, E. A. ; Landheim, R. ; Thomas, G.; Golden, J. ; Saville, K. ; Ludvigson, G. ; Witzke, B., (2001), "Nomad Rover Field Experiment, Atacama Desert, Chile, 2, Identification of paleolife evidence using a robotic vehicle: Lessons and recommendations for a Mars sample return mission,” Journal of Geophysical Research - Planets, 106(E4): 7807-7815.

Cabrol, N.A.; Chong-Diaz, G.; Stoker, C.R.; Gulick, V.C.; Landheim, R.; Lee, P.; Roush, T.L.; Zent, A.P.; Lameli, C. Herrera; Iglesia, A. Jensen; Arrerondo, M. Pereira; Dohm, J. M.; Keaten, R.; Wettergreen, D.; Sims, M. H.; Schwher, K.; Bualat, M.G.; Thomas, H.J.; Zbinden, E.; Christian, D.; Pedersen, L.; Bettis, A., III; Thomas, G.; Witzke, B. (2001), “Nomad Rover Field Experiment, Atacama Desert, Chile, 1, Science results overview,” Journal of Geophysical Research - Planets, 106(E4): 7785-7806.

Wu, J., Chan, W. and Thomas, G, (2001), “Rapid and Accurate Inter-Robot Position Determination in Robot Teams,” IEEE Transactions on Instrumentation and Measurement, 50(1): 163-168.

Wagner, J.L., Radtke, A.M., Thomas, G.W., Goel, V.K. Stanford, C.M., Wilder, D.G., (2000), “The Iowa Dental Probe: a Transducer to Measure Forces Applied by Dentists in a Clinical Setting,” Journal of Clinical Engineering, 25(3): 164 - 168

Wettergreen, D., Bapna, D., Maimone, M., and Thomas, G. (1999), "Developing Nomad for robotic exploration of the Atacama Desert," Robotics and Autonomous Systems, 2626(2-3): 127-148.

Cannon, D. and Thomas, G., (1997), "Virtual Tools for Supervisory and Collaborative Control of Robots", Presence, Teleoperators and Virtual Environments Volume, 6(1): 1-28.

Yun, M., Cannon, D., Freivalds, A., and Thomas, G., (1997), "An Instrumented Glove for Grasp Specification in Virtual Reality Based Point-and-Direct Telebotics", IEEE Trans. On Systems, Man & Cybernetics, 27(5): 835-846.

Thomas, G., Barton, R., and Cannon, D., (1995), "Inferred Advantage: Using Kogan's Symmetric Actional Principle to Empirically Assess Alternatives in Complex System Development", Research in Engineering Design, 7: 241-252.

Cannon, D., Thomas, G., Wang, C. and Kesavadas, T., (1994), "A Virtual Reality Based Point-and-Direct Robotic System with Instrumented Glovestem with Instrumented Glove," International Journal of Industrial Engineering, Applications and Practice, 1(2): 139-148.

Medeiros, D., Thomas., G., Ratkus, A., and Cannon, D., (1994), "Off-line Programming of Coordinate Measuring Machines Using an Instrumented Stylus", Journal of Manufacturing Systems, 13(6): 401-411.

Thomas, G., (2002), "Real-time Panospheric Image Dewarping and Presentation for Remote Mobile Robot Control", Advanced Robotics, Journal of the Robotics Society of Japan,17(4), 259-368.

Thomas, G., Goldberg, J. and Cannon, D., (2002) " Surface Textures Overcome the Effects of Planar Orientation in Stereoscopic Displays", Journal of Human Factors and Ergonomics Society,” 44(1): 157-170.

Stoker, C.R.; Cabrol, N.A.; Roush, T.R.; Moersch, J.; Aubele, J.; Barlow, N.; Bettis, E.A., III ; Bishop, J.; Chapman, M.; Clifford, S.; Cockell, C.; Crumpler, L.; Craddock, R.; De Hon, R.; Foster, T.; Gulick, V.; Grin, E.; Horton, K.; Hovde, G.; Johnson, J.R.; Lee, P.C.; Lemmon, M.T.; Marshall, J.; Newsom, H.E.; Ori, G.G.; Reagan, M.; Rice, J.W.; Ruff, S.W.; Schreiner, J.; Sims, M.; Smith, P.H.; Tanaka, K.; Thomas, H.J.; Thomas, G.; Yingst, R.A. (2001) "The 1999 Marsokhod rover mission simulation at Silver Lake, California: Mission overview, data sets, and summary of results," Journal of Geophysical Research, 106(E4): 7639-7663.

Thomas, G.; Reagan, M.; Bettis, E.A., III; Cabrol, N.; Rathe, A. (2001), “Analysis of science team activities during the 1999 Marsokhod Rover Field Experiment: Implications for automated planetary surface exploration,” Journal of Geophysical Research - Planets 106(E4): 7775-7783

Stanford, C.M., Welsch, F., Kastner, N., Thomas, G., Zaharias, R., Holtman, K., Brand, R.A., (2000). "Primary human bone cells from older patients do not respond in culture at continuum level in vivo strain magnitudes," Journal of Biomechanics, 33(1): 63-71.
 

Journal Articles In Review

Liu, L., Thomas, G., Stanford, C., and Johnson, L. (2004), "An Analysis of the High Frequency Haptic Signals Critical to a Clinical Dental Task".

Xiang, Z., Thomas, G., Cabrol, N., and Grin, E. (2004) "Slope Perception from Monoscopic Field Images: Applications to Mobile Robot Navigation," IEEE Systems, Man and Cybernetics A.

Wagner, J., Thomas, G., Cabrol, N., Anderson, R., and Grin, E. (2004) "The Accuracy of Sediment Size, Shape, and Distribution Measurements from Robotic Geological Images".
 

Conference Papers

Gerling G., and Thomas G. "The Effect of Fingertip Microstructures on Tactile Edge Perception," Accepted for long talk - IEEE Virtual Reality Conference - World Haptics Symposium - March 18-20, 2003 - Pisa, Italy.

Wagner, J., Thomas, G., Glasgow, J., Anderson, R.C., Cabrol, N., and Grin, E. (2004), "Error-associated behaviors and error rates for robotic geology," Human Factors and Ergonomics Society 48th Annual Meeting, New Orleans, LA, September 20-24.

Thomas, G., "Engineering Robotic Geology for Mars Exploration," IIE Annual Conference, March 2004, Houston, TX.

Wagner, J., Thomas G., and Glasgow, J., "Assessing Geologic Image Interpretations Errors Occurring in Extraterrestrial Robotic Exploration," IEEE Systems, Man and Cybernetics, October 6-8, 2003, Washington, D.C.

Gerling, G., Thomas, G., Weissman, A., and Dove, E., "A Novel Breast Cancer Simulator to Improve Training of Physicians’ Tactile Sensitivity and Discrimination Skills in Clinical Breast Examination," Iowa Academy Of Science Annual Meeting, April 25, 2003 in Des Moines, IA. Won best presentation award.

Lewis, M., Wang, J., Hughes, S., and Liu, X. (2003), "Experiments with Attitude: Attitude Displays for Teleoperation," IEEE Systems, Man and Cybernetics Conference.

Gerling, G., and Thomas, G. (2003) "Effect of Augmented Visual Performance Feedback On the Effectiveness of Clinical Breast Examination Training with a Dynamically Configurable Breast Model," IEEE Systems, Man and Cybernetics Conference, 2003.

Thomas, G., (2002), Virtual Environments and Mobile Robots: Control, Simulation and Robot Pilot Training - Guest Editor’s Introduction,” Presence, Teleoperators and Virtual Environments, 11(4): iv-v.

Thomas, G., and Debbins, P. (2002), "The engineering science preparation and introductory training (ESPRIT) Program," Frontiers in Education Conference, 11/6-9, Boston, MA, v. 3, p. S4C/23.

Gerling, G., Thomas, G., Weissman, A., and Dove, E. (2002) "Dynamic Simulation for Training Clinical Breast Examination," Human Factors and Ergonomics Society Conference 46th Annual Meeting, Baltimore, MD, 2002.

Gerling, G., Thomas, G., A. Weissman, A., and Dove, E., (2002), Effectiveness of a dynamic breast examination training model to improve clinical breast examination (CBE) skills," World Breast Cancer Conference, Victoria, Canada.

Severson, J., Cremer, J., Lee, K., Allison, D., Gelo, S., Edwards, J., Vanderleest, R., Heston, S., Kearney, J. and Thomas, G. (2002), "Exploring virtual history at the National Museum of American History," Virtual Society and Multimedia Conference, Gyeongju, Korea.

Thomas, G., Fienup, M., Gray, P., Changnon, N., Debbins, P., Dixon, R., Ferris, T., Hirshy, L., Jongedyk, H., Locke, A., Perry, D., Symonds, M., and Tahir, R. (2001), "Human control of cooperative robots working on Mars," 11th annual Iowa Space Grant Consortium Conference, Marshalltown, IA.

Harris, P. Stanford, C. Wagner, J. and Thomas, G. (2001), "Use of a force transducer during clinical caries detection," American Association of Dental Research, Chicago, IL, Journal of Dental Research, Special Issue (AADR Abstracts), 80:118.

Wagner, J., Stanford, C., and Thomas, G. (2001), "Dentist-specific patterns of forces are used in clinical procedures," American Association of Dental Research, Chicago, IL. Journal of Dental Research, Special Issue (AADR Abstracts), 80:207.

Thomas, G. Steele, F. and Gerling, G. (2000), "Stimergy and bandwidth optimization: two new approaches to human interactions with planetary robotics," 11th Annual Iowa Space Grant Consortium Conference, Marshalltown, IA.

Reagan, M., Thomas, G., Bauerly, M., Gerling, G., and Petrie, C. (2000), "VVROM: volcanic visual and thermographic onsite, real time monitoring," Tenth Annual Iowa Space Grant Conference 12/00, Marshalltown, IA.

Steele, F.J., Pollack, E., Thomas, G., and Lee, J. (2000) "Leveraging Popular Game Designs to Understand Multi-Agent System Interfaces," HICS 2000 (Human Interaction with Complex Systems), Urbana-Champaign, IL.

Thomas, G., Petrie, C., Loeppke, N., Bauerly, M., Mills, R., Rick, M., Wyatt, B., Reagan, R., Cabrol, N., Dow, S., Fischer, S., McClarigan, S., Steele, J., and Wagner, J. (1999) "Project MARVIN: Mars Advance Robotic Visualization Initiative," Proceedings of the 1999 Iowa Space Grant Consortium Conference.

Dow, S., Thomas, G., and Johnson, L (1999). "Signal detection performance with a haptic device," 1999 Human Factors and Ergonomics Conference, September, 1999, Proceedings published on CD.

Tawil, A.Z., Thomas, G., Lee, J.D., and McLennan, G. (1999). "What's so hard about bronchoscopic surgery? Identifying the perceptual and cognitive difficulties of bronchoscopic surgery," 1999 Human Factors and Ergonomics Conference, September, 1999, published on CD.

Steele, F., Thomas, G., and Blackmon, T. (1998). "An Operator Interface for a Robot-Mounted, 3D Camera System:  Project Pioneer," Proceedings of the 1999 IEEE Virtual Reality Conference, Houston, TX, (in press).

Thomas, G. and Steele, F. (1998). "Projected Textures - A Supervisory Control Tool For Estimating Robot Position In Hazardous Environments," Proceedings of the American Nuclear Society, Pittsburgh, PA, (In Press).

Steele, F., Thomas, G., and Blackmon, T. (1998). "An Operator Interface for a Robot-Mounted, 3D Camera System:  Project Pioneer," Proceedings of the American Nuclear Society, Pittsburgh, PA, (in press).

Blackmon, T., Ngyuen, L., Neveu, C., Rasmussen, D., Zbinden, E., NASA Ames Research Center, Maimone, M., Matthies, L., Jet Propulsion Lab.; Thayer, S., Broz, V., Teza, J., Osborn, J., Hebert, M., Carnegie Mellon Univ.; Thomas, G., Steele, J., Univ. of Iowa, (1999) "Photorealistic virtual reality mapping system for Chernobyl accident site assessment," Proceedings of the SPIE, Human Vision and Electronic Imaging IV, Vol. 3644.

Corby, K., Wu, J., Chan, W., and Thomas, G. (1998), "Sensing and Positioning Technologies for Planetary Nanorobot Teams", Eighth Annual Iowa Space Grant Conference, University of Iowa, October 1998. pp. 1-9.

Thomas, G., Robinson, W., and Dow, S. (1997), "Improving the Visual Experience for Mobile Robotics," Seventh Annual Iowa Space Grant Proceedings, Drake University, November 1997. pp. 10-20.

Thomas, G., Blackmon, T., Sims, M., and Rasmussen, D. "Video Engraving for Virtual Environments", Electronic Imaging: Science and Technology '97, San Jose, California, February 1997.

Cannon, D., Graves, C., and Thomas, G. (1996), "Virtual Tools and Robotics-Video" Proceedings of the 1996 IEEE International Conference on Robotics and Automation.

Thomas, G., Cannon, D., and Goldberg, J. (1995), "Video Texture Cues Enhance Stereoscopic Depth Perception in a Virtual Reality-Based, Telerobotic Interface", 1995 IEEE International Conference on Systems, Man, and Cybernetics, Vancouver, Canada, October 1995.

Cannon, D. and Thomas, G. (1994), "Point-and-direct virtual tools for robotic control in single shell tank (SST) remediation,"” Sandia Robotics Forum.

Cannon, D., and Thomas, G. (1993), "Virtual reality based point-and-direct (VR-PAD) strategic control of telerobotics in an interwoven live/graphic environment," Sandia Robotics Forum.

GROK Lab Technical Documents

Gerling, G., Thomas, G., Weissman, A. "CCAD Technical Report R03-01 Dynamic Breast Simulator Technical Description, Version 1.1," March 10, 2003