Publications
Minnicino, M.A. and Sommer, H.J., 2003, Detecting and Quantifying Friction Nonlinearity using the Hilbert Transform, SPIE 9th Annual International Symposium on NDE for Health Monitoring and Diagnostics (San Diego, CA), 3/04.
Trethewey, M.W. and H.J. Sommer, 2002, Measurement of Rotational DOF Frequency Response Functions with Pure Moment Excitation, Proc. Int. Conf. on Structural Dynamics Modelling (Madeira, Portugal), pp. 81-88.
H. J. Sommer, H.J., Eckhardt R.B. and Shiang, T.Y., 2002, Superquadric Modeling of Cranial and Cerebral Shape and Asymmetry, Am. J. Physical Anthropology.
Flynn, T.W., P.R. Cavanagh, H.J. Sommer and J.A. Derr, 2002, Work 18(2):151-159, Tibial Flexural Wave Propagation in vivo: Potential for Bone Stress Injury Risk Assessment.
Challis, J.H., and Sommer, H.J., 2002, Assessment of Sincerity of Effort during Isometric Strength Testing, Proc. 4th World Congr. of Biomechanics, ASB, pp. 271-272.
Sommer, H.J. and J.J. Stauffer, 2002, Handheld Slipmeter to Measure Slip Resistance between Shoe and Flooring Materials, 39th Ann. Tech. Mtg. of Soc. of Engr. Science, SES, p. 33.8
Sommer, H.J, 2000, Dual Axis Cranial Accelerometry to Assess Postural Stability, Proc. 12th Conf. of the European Soc. of Biomechanics, ESB, p. 90.
Gardner, J.F., J.S. Lamancusa and H.J. Sommer, 1999, Mechatronics II: Advanced Mechatronics for Mechanical Engineering Students, Proc. 1999 Int. Conf. on Adv. Intelligent Mechatronics, IEEE/ASME, pp. 472-476.
Kepple, T.M., H.J. Sommer, K. Lohmann-Siegel, and S.J Stanhope. 1998. A Three-Dimensional Musculoskeletal Database for the Lower Extremities. J. Biomechanics 31(1):77-80.
Wang, Z., P.H. Heinemann, H.J. Sommer, P.N. Walker, C.T. Morrow, and C. Heuser. 1998. Identification and Separation of Micropropagated Sugarcane Shoots. Trans. ASAE 41(5):1535-1541.
Egbelu, P. J., C. M. Harmonosky, J. A. Ventura, W.E. O'Brien, and H. J. Sommer. 1998. Cost Analysis of Hospital Material Management Systems. IIE J. of the Soc. for Health Sys. 5(4):1-10.
Zhao, W., G. Wu and H.J. Sommer. 1998. Experimental Validation Study of Three-Dimensional Human Dynamic Standing Balance. Proc. 5th Int. Symp. on 3-D Analysis of Human Movement, ASB/ISB, pp. 69-72.
Flynn, T.W., P.R. Cavanagh, H.J. Sommer and J.A. Derr. Relationship among Age, Tibial Width, Late Menarche and Tibial Bone Quality in Young Women. 1998. Proc. 45th Annual Mtg. Amer. College of Sports Med. - J. ACSM 30(5):S47.
T.M. Kepple, H.J. Sommer, K. Lohmann-Siegel, and S.J. Stanhope. Normative Three-Dimensional Database of Muscle Origins and Insertions for the Lower Extremities, Journal of Biomechanics. 6/97.
P.F. Egbelu, C.M. Harmonosky, J.A. Ventura, W.E. O'Brien, and H.J. Sommer. Cost Analysis of Hospital Material Management Systems, IIE Journal of the Society for Health Systems. 9/97.
Monteiro, L.R., M.J. Cavalcanti and H.J. Sommer. 1996. Comparative Ontogenetic Shape Changes in the Skull of Caiman Species (Crocodylia, Alligatoridae). J. Morphology 231(1):53-62.
Wang, Z., P.H. Heinemann, P.N. Walker, C.T. Morrow, H.J. Sommer and C. Heuser. 1996. Vision-Guided Separation of Micropropagated Sugarcane Shoots. ASAE Paper 96-3069, 14 pages.
Carpenter, K. E., H. J. Sommer, and L. F. Marcus. 1996. Converting Truss Interlandmark Distances to Cartesian Coordinates. Adv. in Morphometrics. (Proc. 1993 NATO Adv. Study Inst. on Adv. in Morphometrics, Il Ciocco, Italy). L.F. Marcus, editor. Plenum Press, pp. 103-111.
Tao, Y., C.T. Morrow, P.H. Heinemann, and H.J. Sommer. 1995. A Fourier-based Separation Technique for Shape Grading of Potatoes Using Machine Vision. Trans. ASAE 38(3):949-957.
Cafeo, J.A., M.W. Trethewey, and H.J. Sommer. 1995. Beam Element Structural Dynamics Modification Using Experimental Modal Rotational Data. ASME J. Vibration and Acoustics 117(3):265-271.
Tao, Y., P.H. Heinemann, Z. Varghese, C.T. Morrow, and H.J. Sommer. 1995. Machine Vision for Color Inspection of Potatoes and Apples. Trans. ASAE 38(5):1555-1561.
Heinemann, P.H., Z.A. Varghese, C.T. Morrow, H.J. Sommer, and R.M. Crassweller. 1995. Machine Vision Inspection of Golden Delicious Apples. ASAE App. Engr. in Agriculture 11(6):901-908.
Ripley, C. S., S. P. Beals, E. F. Joganic, J. Pomatto, K. Manwaring, S. D. Moss, H. J. Sommer, R. B. Eckhardt, and J. T. Eckhardt. 1995. Mathematical Modeling of Cranial Molding: Superquadric Images Document Rapid Change of Cranial Form in Response to Environmental Influences. Am. J. Phys. Anthropology Supplement 20, p. 89.
Bokelberg, E.H., H.J. Sommer, and M.W. Trethewey. 1994. A Six Degree of Freedom Laser Vibrometer: Part I - Analytical Development. J. Sound and Vibration 178(5):643-654.
Bokelberg, E.H., H.J. Sommer, and M.W. Trethewey. 1994. A Six Degree of Freedom Laser Vibrometer: Part II - Experimental Validation. J. Sound and Vibration 178(5):655-667.
Puntambekar, N. V., A. G. Jablokow, and H. J. Sommer. 1994. A Unified Review of 3D Model Generation for Reverse Engineering. J. Comp. Integrated Manufac. Sys. 7(4):259-268.
Sommer H.J, M.J. Erickson, M.W. Trethewey, and J.A. Cafeo. 1994. Single Beam Laser Vibrometer for Simultaneous Measurement of Translation, Pitch, and Roll with Neural Network Calibration. Proc. 12th Int. Modal Analysis Conf. (Honolulu, HI), SEM, 12(2):1196-1201.
Krishnan, R. and H.J. Sommer. Estimation of Rock Face Stability. 1994. Proc. Mach. Vision Appl. and Systems Integr., SPIE, 2347:93-104.
Sommer, H. J., T. M. Kepple, K. Lohmann-Siegel, and S. J. Stanhope. 1994. A Three-Dimensional Musculoskeletal Database Designed for the Analysis of Human Lower Extremity Motion. Proc. 13th Southern Biomed. Engr. Conf., pp. 1043-1046.
Sommer, H. J. and M. W. Powell. 1994. Feasibility of Adjustable Prosthetic Sockets using Shape Memory Alloy Wire. Proc. 13th Southern Biomed. Engr. Conf., pp. 170-173.
Powell, M.W. and H.J. Sommer. 1994. Adjustable Prosthetic/Orthotic Sockets using Shape Memory Alloys. 1994 Advances in Bioengineering, ASME, BED-28:253-254.
Kepple, T.M., H.J. Sommer, K. Lohmann-Siegel, and S.J Stanhope. 1994. Three Dimensional Normative Databases of Muscle Origins and Insertions for the Lower Extremities. Proc. 18th Annual Mtg. of Amer. Soc. of Biomechanics, ASB, pp 37-38.
Heinemann, P. H., R. Hughes, C. T. Morrow, H. J. Sommer, R.B. Beelman, and P.J. Wuest. 1995. Grading of Mushrooms using a Machine Vision System. Trans. ASAE 37(5):1671-1677.
Bokelberg, E.H., H.J. Sommer, and M.W. Trethewey. 1993. Simultaneous Measurement of Six Coordinate Vibration: Three Translations and Three Rotations. Proc. 11th Int. Modal Analysis Conf. (Kissimmee, FL), SEM, 11(2):522-527.
Shiang, T.Y., H.J. Sommer, and R.B. Eckhardt. 1993. Quantification of Cranial Surface Asymmetry using Superquadrics. Biomed. Eng. Appl. Basis Comm. (5)1:20-37.
Trethewey, M.W., H.J. Sommer, J.A. Cafeo, and C.H. Chu. 1993. Measurement and Application of Rotational Degrees of Freedom in Structural Vibration. Proc. 1993 Int. Noise and Vibration Control Conf. (St. Petersburg, Russia) 1:3-8.
Trethewey, M. W., H. J. Sommer, and J. A. Cafeo. 1993. Dual Beam Laser Vibrometer for the Measurement of Structural Rotations and Displacements. J. Sound and Vibration 164(1):67-84.
Shiang, T.Y., H.J. Sommer, and R.B. Eckhardt. 1993. Superquadric Modeling of Cranial Contours. Am. J. Phys. Anthropology, Suppl. 16, p.179.
Krishnan, R., H. J. Sommer, and P. D. Spidaliere. 1992. Monocular Pose of a Rigid Body Using Point Landmarks. J. Comp. Vision, Graphics, and Image Proc.- Image Understanding 55(3):307-316.
Sommer, H. J. 1992. Determination of First and Second Order Instant Screw Parameters from Landmark Trajectories. ASME J. Mechanical Design 114(2):274-282.
Cafeo, J.A., M.W. Trethewey, and H.J. Sommer. 1992. Measurement and Application of Experimental Rotational Degrees of Freedom for Mode Shape Refinement. Int. J. Analytical and Exp. Modal Analysis 7(4):255-269.
Krishnan, R. and H.J. Sommer. 1992. Machine Vision Inspection of Component Footprints in PCB Artwork. Proc. Applications of Artificial Intelligence X Conf., SPIE, 1708:819-829.
DiGregorio, J.S., T. Krauthammer, K.M. Grossman, W.R. Hager, M.E. Keune, and H.J. Sommer. 1992. Simultaneous Degree Programs in Engineering and a Second Language for American Students. Proc. Third World Conf. on Engr. Education (Portsmouth, England), 3:261-266.
Deck, S., C.T. Morrow, P.H. Heinemann, and H.J. Sommer. 1992. Neural Networks for Automated Inspection of Produce. ASAE Paper 92-3594, 14 pages.
Heinemann, P.H., H.J. Sommer, C.T. Morrow, R. Beelman, C.C. Kao, and R. Hughes, 1991, An Automated Mushroom Inspection System using Artificial Intelligence and Machine Vision, ASAE Paper 91-7001, 14 pages.
Cafeo, J.A., J.R. Rieker, M.W. Trethewey, and H.J. Sommer, 1991, Application of a Three Degree of Freedom Laser Vibrometer for Experimental Modal Analyses, Proc. Ninth Int. Modal Analysis Conf. (Florence, Italy), SEM, 9(2): 1161-1167.
Varghese, Z., C.T. Morrow, P.H. Heinemann, H.J. Sommer, Y. Tao, and R.M. Crassweller, 1991, Automated Inspection of Golden Delicious Apples using Color Computer Vision, ASAE Paper 91-7002, 16 pages.
Tao, Y., S.H. Deck, C.T. Morrow, P.H. Heinemann, H.J. Sommer, R.H. Cole, 1991, Rule Supervised Automated Machine Vision Inspection of Produce, ASAE Paper 91-7003, 19 pages.
Sommer, H.J. and F.L. Buczek, 1991, Three Dimensional Experimental Angular Velocity and Angular Acceleration, Proc. Int. Symp. on 3D Analysis of Human Movement (Montreal, Canada), ASB/CSB, pp. 63-66.
McClay, I.S. P.R. Cavanagh, H.J. Sommer, H.J. Woltring, and A. Kalenak, 1991, Three Dimensional Angular Kinematics of the Tibiofermoral Joint during Running, Proc. Int. Symp. on 3D Analysis of Human Movement (Montreal, Canada), ASB/CSB, pp. 189-192.
Deck, S., C.T. Morrow, P.H. Heinemann, and H.J. Sommer, 1991, Neural Networks versus Traditional Classifiers for Machine Vision Inspection, ASAE Paper 91-3502, 13 pages.
Sommer, H.J. and R. Krishnan, 1991, Three Dimensional Monocular Pose Measurement Using Computational Neural Networks, Proc. Intelligent Robots and Computer Vision X Conference, SPIE, 1608:472-479.
McClay, I.S., P.R. Cavanagh, H.J. Sommer, and A. Kalenak, 1991, The Effect of Orthotic Treatment on Tibiofemoral and Patellofemoral Kinematics, J. Am. Phys. Therapy Assoc. 71(6):S-46.
McClay, I.S., P.R. Cavanagh, A. Kalenak, and H. J. Sommer, 1991, Three Dimensional Kinematics of the Patellofemoral Joint During Running, Proc. 15th Annual Mtg. of Amer. Soc. of Biomechanics, ASB, pp. 146-147.
Davis, B.L., P.R. Cavanagh, R. Bock, and H.J. Sommer, 1991, Measuring Ground Reaction Forces in a Zero-Gravity Locomotion Simulator, Proc. 13th Int. Congr. on Biomechanics, ISB, pp. 336-338.
Shiang, T.Y., H.J. Sommer, and R.B. Eckhardt, 1991, Superquadric Modeling of Cranial Asymmetry, Proc. Second N. Amer. Congr. on Biomechanics, ASB/CSB, pp. 75-76.
Morrow, C.T., P.H. Heinemann, S. Deck, Z. Varghese, Y. Tao, H.J. Sommer, R.M. Crasswelter, R.H. Cole, and J.E. McClure, 1991, Automated Inspection of Fruits Vegetables. Pennsylvania Fruit News 71(2):44-46.
Whalen, M. D., and H. J. Sommer, 1990, Design and Modal Analysis of a Prototype Link for a Flexible Robot Manipulator, Proc. Eighth Int. Modal Analysis Conf., SEM, 8(2):1440-1446.
Morrow, C. T., P. H. Heinemann, H.J. Sommer, Y. Tao and Z. Varghese, 1990, Automated Inspection of Potatoes, Apples and Mushrooms, Proc. First Int. Workshop on Robotics in Agriculture and the Food Ind. (Avignon, France), IARP, 1:179-188.
Sommer, H. J, 1990, Determination of First and Second Order Instant Screw Parameters from Landmark Trajectories, Proc. Twenty First Mechanisms Conf., ASME, DE-25:429-437.
Cafeo, J. A., M. W. Trethewey, and H. J. Sommer, 1990, A Noncontacting Transducer for the Measurement of Vibratory Displacements and Rotations, Proc. 1990 Int. Conf. on Noise Control Engr. (Gothenburg, Sweden), 2:1033-1036.
Whalen, M. D. and H. J. Sommer, 1990, Mode Shape Selection for Modelling an Experimental Two-Link Flexible Manipulator, Robotics Research, ASME, DSC-26:47-52.
Tao, Y., C.T. Morrow, P.H. Heinemann, and H.J. Sommer, 1990, Automated Machine Vision Inspection of Potatoes, ASAE Paper 90-3531, 20 pages.
Buczek, F.L., P.R. Cavanagh, and H.J. Sommer, 1990, Three Dimensional Ankle and Knee Kinetics During Level and Grade Walking, Proc. Eighth Int. Cong. on Electrophysiological Kinesiology, ISEK, page 85.
Sommer, H. J. and F. L. Buczek, 1990, Experimental Determination of the Instant Screw Axis and Angular Acceleration Axis, Proc. 16th Northeast Bioengineering Conf., IEEE, 90-CH2834:141-142.
Buczek, F.L., P.R. Cavanagh, and H.J. Sommer, 1990, Three Dimensional Kinematics and Kinetics of the Ankle and Knee During Level and Grade Walking, J. Biomechanics 24(3):238 also Proc. 14th Annual Mtg. of Amer. Soc. of Biomechanics, ASB, 31-32.
Sommer, H.J. and F.L. Buczek, 1990, Least Squares Estimation of the Instant Screw Axis and Angular Acceleration Axis, 1990 Advances in Bioengineering, ASME, BED-17:339-342.
Lamancusa, J. S., D. A. Saravanos, and H. J. Sommer, 1989, Shape Optimization of Robotic Manipulators for Maximum Stiffness and Load Carrying Capacity, Advances in Design Automation, ASME, DE-19(2):191-200.
Chittajallu, S. K. and H. J. Sommer, 1989, Two-Dimensional Layout of Robot Assembly Cells, Advances in Manufacturing Systems Engineering, ASME, PED-37:169-180.
Sommer, H. J, 1989, Computer Vision and Inspection Laboratory, Proc. ASME Mech. Engr. Dept. Heads Conf., ASME, 4:35-36.
Trethewey, M. W., B. T. Kulakowski, J. S. Lamancusa, H. J. Sommer, and J. M. Cimbala, 1988, Integrated Use of Microcomputers as a Laboratory Tool in Mechanical Engineering Education, Proc. Int. Computers in Engr., ASME, 2:461-469.
Trethewey, M. W., B. T. Kulakowski, J. S. Lamancusa, H. J. Sommer, 1988, The PC as a Laboratory Tool, Computers in Mechanical Engineering, ASME, 7(2):26-33.
Sommer, H. J., 1988, Three-Dimensional Normative Atlases of Contemporary Human Longbones, Am. J. Phys. Anthropology 75(2):273-274.
Saravanos, D. A., J. S. Lamancusa, and H. J. Sommer, 1987, Shape Optimum Design of Robotic Manipulators with Static Performance Criteria, Advances in Design Automation, ASME, DE-10(2):37-44.