• BS, Mechanical Engineering, 1974
• MS, Mechanical Engineering, 1977
• Ph D, Mechanical Engineering, 1980

Journal Articles

Henry J Sommer, N Ochoa-Lleras, S N Brennan, D J Murphy and P M Garvey, 2016, "Development of an open source tractor driving simulator for tractor stability tests", Agricultural Safety and Health, 22, (4), pp. 227-246

Henry J Sommer, 2015, "Self-excited limit cycle yaw oscillation instability of external sling payloads with dual point suspension during level flight", J. American Helicopter Society

J. A. Tillapugh, D. J. Murphy, Henry J Sommer and P. M. Garvey, 2010, "Operator assessment of tractor roll angle with and without a tractor stability visual feedback device", J. Agricultural Safety and Health, 16, (4), pp. 249-264

Robert B Eckhardt, Henry J Sommer and Adam J Kuperavage, 2010, "Moment coefficients of skewness in the femoral neck cortical bone distribution of BAR 1002'00.", Journal of Human Biology, 61, (4), pp. 9

E. T. Donnell, Henry J Sommer, P. M. Garvey, S. C. Himes and D. J. Torbic, 2009, "Statistical model of in-vehicle sound generated from highway rumble strips", Int. J. Vehicle Noise and Vibration, 5, (4), pp. 308-328

Henry J Sommer, 2008, "Jerk analysis and axode geometry of spatial linkages", ASME J. Mech. Design, 130, (4), pp. 042301

Henry J Sommer, R. B. Eckhardt and T. Y. Shiang, 2006, "Superquadric modeling of cranial and cerebral shape and asymmetry", Am. J. Physical Anthropology, 129, (2), pp. 189-195

G. S. Lewis, Henry J Sommer and S. J. Piazza, 2006, "In vitro assessment of a motion-based optimization method for locating the talocrural and subtalar joint axes", ASME J. Biomech. Engr., 128, (4), pp. 596-603

C. I. Nichol, Henry J Sommer and D. J. Murphy, 2005, "Simplified overturn stability monitoring of agricultural tractors", J. Agri Safety and Health, 11, (1), pp. 99-108

T. W. Flynn, P. R. Cavanagh, Henry J Sommer and J. A. Derr, 2002, "Tibial flexural wave propagation in vivo: Potential for bone stress injury risk assessment", Work, 18, (2), pp. 151-159

J. L. McCrory, D. R. Lemmon, Henry J Sommer, B. Prout, D. Smith, D. W. Korth, J. Lucero, M. Greenisen, J. Moore, I. Kozlovskay, I. Pestov, V. Stepansov, Y. Miyakinchenko and P. R. Cavanagh, 1999, "Evaluation of a treadmill with vibration isolation and stabilization (TVIS) for use on the International Space Station", Journal of Applied Biomechanics, 15, (3), pp. 292-302

W. Zhao, G. Wu and Henry J Sommer, 1998, "Closed-form kinematics for a spatial closed-chain mechanism modeling biped stance", Mechanism and Machine Theory, 33, (4), pp. 379-387

T. M. Kepple, Henry J Sommer, K. Lohmann-Siegel and S. J. Stanhope, 1998, "A three-dimensional musculoskeletal database for the lower extremities", Journal of Biomechanics, 31, (1), pp. 77-80

Z. Wang, P. H. Heinemann, Henry J Sommer, P. N. Walker, C. T. Morrow and C. Heuser, 1998, "Identification and separation of micropropagated sugarcane shoots based on the Hough transform", Transactions of the ASAE, 41, (5), pp. 1535-1541

P. J. Egbelu, C. M. Harmonosky, J. A. Ventura, W. E. O'Brien and Henry J Sommer, 1998, "Cost analysis of hospital material management systems", Journal of the Society for Health Systems, 5, (4), pp. 1-10

L. R. Monteiro, M. J. Cavalcanti and Henry J Sommer, 1997, "Comparative ontogenetic shape changes in the skull of Caiman species (Crocodylia, Alligatoridae)", Journal of Morphology, 231, (1), pp. 53-62

B. L. Davis, P. R. Cavanagh, Henry J Sommer and G. Wu, 1996, "Ground reaction forces during locomotion in simulated microgravity", Aviation, Space, and Environmental Medicine, 67, (3), pp. 235-242

J. A. Cafeo, M. W. Trethewey and Henry J Sommer, 1995, "Beam element structural dynamics modification using experimental modal rotational data", Journal of Vibration and Acoustics, 117, (3), pp. 265-271

Y. Tao, P. H. Heinemann, Z. Varghese, C. T. Morrow and Henry J Sommer, 1995, "Machine vision for color inspection of potatoes and apples", Transactions of the ASAE, 38, (5), pp. 1555-1561

P. H. Heinemann, Z. A. Varghese, C. T. Morrow, Henry J Sommer and R. M. Crassweller, 1995, "Machine vision inspection of 'Golden Delicious' apples", Applied Engineering in Agriculture, 11, (6), pp. 901-908

S. Deck, C. T. Morrow, P. H. Heinemann and Henry J Sommer, 1995, "Comparison of a neural network and traditional classifier for machine vision inspection", Applied Engineering in Agriculture, 11, (2), pp. 319-326

Y. Tao, C. T. Morrow, P. H. Heinemann and Henry J Sommer, 1995, "A fourier-based separation technique for shape grading of potatoes using machine vision", Transactions of the ASAE, 38, (3), pp. 949-957

E. H. Bokelberg, Henry J Sommer and M. W. Trethewey, 1994, "A six-degree-of-freedom laser vibrometer, Part I: Theoretical development", Journal of Sound and Vibration, 178, (5), pp. 643-654

E. H. Bokelberg, Henry J Sommer and M. W. Trethewey, 1994, "A six-degree-of-freedom laser vibrometer, Part II: Experimental Validation", Journal of Sound and Vibration, 178, (5), pp. 655-667

N. V. Puntambekar, A. G. Jablokow and Henry J Sommer, 1994, "A unified review of 3D model generation for reverse engineering", Computer Integrated Manufacturing Systems, 7, (4), pp. 259-268

M. A. Lafortune, P. R. Cavanagh, Henry J Sommer and A. Kalenak, 1994, "Foot inversion-eversion and knee kinematics during walking", Journal of Orthopaedic Research, 12, (3), pp. 412-420

P. H. Heinemann, R. Hughes, C. T. Morrow, Henry J Sommer, R. B. Beelman and P. J. Wuest, 1994, "Grading of mushrooms using a machine vision system", Transactions of the ASAE, 37, (5), pp. 1671-1677

M. W. Trethewey, Henry J Sommer and J. A. Cafeo, 1993, "A dual beam laser vibrometer for measurement of dynamic structural rotations and displacements", Journal of Sound and Vibration, 164, (1), pp. 67-84

T. Y. Shiang, Henry J Sommer and R. B. Eckhardt, 1993, "Quantification of cranial surface asymmetry using superquadrics", Biomedical Engineering: Applications, Basis, and Communications, 5, (1), pp. 20-37

J. A. Cafeo, M. W. Trethewey and Henry J Sommer, 1992, "Measurement and application of experimental rotational degrees of freedom for mode shape refinement", International Journal of Analytical and Experimental Modal Analysis, 7, (4), pp. 255-269

Henry J Sommer, 1992, "Determination of first and second order instant screw parameters from landmark trajectories", Journal of Mechanical Design, 114, (2), pp. 274-282

R. Krishnan, Henry J Sommer and P. D. Spidaliere, 1992, "Monocular pose of a rigid body using point landmarks", Journal of Computer Vision, Graphics, and Image Processing: Image Understanding, 55, (3), pp. 307-316

M. A. Lafortune, P. R. Cavanagh, Henry J Sommer and A. Kalenak, 1992, "Three dimensional kinematics of the human knee during walking", Journal of Biomechanics, 25, (4), pp. 347-357

P. H. Heinemann, C. T. Morrow, S. Joshi and Henry J Sommer, 1991, "Improving efficiency in a specialty baked product line", Applied Engineering in Agriculture, 7, (5), pp. 587-592

S. R. Turns, J. A. Lovett and Henry J Sommer, 1989, "Visualization of soot zones in turbulent diffusion flames", Combustion and Flame, 77, (3-4), pp. 405-409

M. W. Trethewey, B. T. Kulakowski, J. S. Lamancusa and Henry J Sommer, 1988, "The PC as a laboratory tool", Computers in Mechanical Engineering, 7, (2), pp. 26-33

D. J. Murphy, D. G. Beppler and Henry J Sommer, 1985, "Tractor stability indicator", Applied Ergonomics, 16, (3), pp. 187-191

D. J. Sanderson and Henry J Sommer, 1985, "Kinematic features of wheelchair propulsion", Journal of Biomechanics, 18, (6), pp. 423-430

Henry J Sommer, N. R. Miller and G. J. Pijanowski, 1982, "Three-dimensional osteometric scaling and normative modelling of skeletal segments", Journal of Biomechanics, 15, (3), pp. 171-182

Henry J Sommer and C. Cusano, 1982, "Experimental investigation of the frictional behavior of sintred metal friction materials under contaminated conditions", Journal of the American Society of Lubrication Engineers, 38, (9), pp. 567-573

G. J. Pijanowski, G. B. Tarvin and Henry J Sommer, 1981, "In-vitro analysis of two canine pelvic osteotomy techniques", Veterinary Surgery, 10, (4), pp. 139-142

Henry J Sommer and N. R. Miller, 1981, "A technique for the calibration of instrumented spatial linkages used for biomechanical kinematic measurements", Journal of Biomechanics, 14, (2), pp. 91-98

Henry J Sommer and N. R. Miller, 1980, "A technique for kinematic modelling of anatomical joints", Journal of Biomechanical Engineering, 102, (4), pp. 311-317

Conference Proceedings

N. Okita and Henry J Sommer, 2014, "A novel gait and foot slip detection algorithm for walking robots", ASME 2014 Dynamic Systems and Control Conf.

N. Okita and Henry J Sommer, 2013, "Angular acceleration of the foot during gait using an IMU", Proc. Ann. Mtg. of Amer. Soc. of Biomechanics, ASB

N. Okita and Henry J Sommer, 2012, "A novel foot slip detection algorithm using unscented Kalman filter innovation", Proc. 2012 American Control Conf., pp. 5163-5168

P. M. Garvey, D. J. Murphy, Henry J Sommer and C. I. Nichol, 2007, "Operator interface for tractor rollover mitigation system", Proc. ASABE Ann. Int. Mtg., pp. p. 14

M. A. Minnicino and Henry J Sommer, 2004, "Detecting and quantifying friction nonlinearity using the Hilbert transform", Proc. 9th Ann. Int. Symp. on NDE for Health Monitoring and Diagnostics, SPIE, 5394, pp. 419-427

M. J. Majewski, M. W. Trethewey and Henry J Sommer, 2003, "Evaluation of a pure moment exciter for measurement of rotational DOF frequency response functions", Proc. ASME 2003 Int. Mech. Engr. Congr., IMEC2003-43836, pp. 8

M. W. Trethewey and Henry J Sommer, 2002, "Application of a pure moment exciter for measurement of moment-rotational DOF frequency response functions", Proc. 20th Int. Modal Analysis Conf., 20, pp. 1153-1158

M. W. Trethewey and Henry J Sommer, 2002, "Measurement of rotational DOF frequency response functions with pure moment excitation", Proc. Int. Conf. on Structural Dynamics Modelling, pp. 81-88

J. F. Gardner, J. S. Lamancusa and Henry J Sommer, 1999, "Mechatronics II: Advanced mechatronics for mechanical engineering students", Proc. 1999 Int. Conf. on Adv. Intelligent Mechatronics, IEEE/ASME, pp. 472-476

W. Zhao, G. Wu and Henry 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

Z. Wang, P. H. Heinemann, P. N. Walker, C. T. Morrow, Henry J Sommer and C. Heuser, 1996, "Vision-guided separation of micropropagated sugarcane shoots", ASAE Paper 96-3069, pp. 14

K. E. Carpenter, Henry J Sommer and L. F. Marcus, 1996, "Converting truss interlandmark distances to cartesian coordinates", Plenum Press, pp. 103-111

Henry J Sommer, 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), pp. 1196-1201

R. Krishnan and Henry J Sommer, 1994, "Estimation of rock face stability", Proc. Mach. Vision Appl. and Systems Integr., SPIE, 2347, pp. 93-104

J. A. Cafeo, Henry J Sommer and M. W. Trethewey, 1993, "On the use of measured rotational degrees-of-freedom in structural dynamics modification", Proc. 11th Int. Modal Analysis Conf., Kissimmee, FL, SEM, 11, (1), pp. 96-101

E. H. Bokelberg, Henry 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), pp. 522-527

M. W. Trethewey, Henry 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, pp. 3-8

R. Krishnan and Henry J Sommer, 1992, "Machine vision inspection of component footprints in PCB artwork", Proc. Applications of Artificial Intelligence X Conf., SPIE, 1708, pp. 819-829

J. S. DiGregorio, T. Krauthammer, K. M. Grossman, W. R. Hager, M. E. Keune and Henry J Sommer, 1992, "Simultaneous degree programs in engineering and a second language for American students", Proc. 3rd World Conf. on Engr. Education, Portsmouth, England, 3, pp. 261-266

S. Deck, C. T. Morrow, P. H. Heinemann and Henry J Sommer, 1992, "Neural networks for automated inspection of produce", ASAE Paper 92-3594, pp. 14

P. H. Heinemann, Henry 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, pp. 14

J. A. Cafeo, J. R. Rieker, M. W. Trethewey and Henry 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), pp. 1161-1167

Z. Varghese, C. T. Morrow, P. H. Heinemann, Henry J Sommer, Y. Tao and R. M. Crassweller, 1991, "Automated inspection of golden delicious apples using color computer vision", ASAE Paper 91-7002, pp. 16

Y. Tao, S. H. Deck, C. T. Morrow, P. H. Heinemann, Henry J Sommer and R. H. Cole, 1991, "Rule supervised automated machine vision inspection of produce", ASAE Paper 91-7003, pp. 19

Henry J Sommer 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

I. S. McClay, P. R. Cavanagh, Henry J Sommer, H. J. Woltring and A. Kalenak, 1991, "Three dimensional angular kinematics of the tibiofemoral joint during running", Proc. Int. Symp. on 3D Analysis of Human Movement, Montreal, Canada, ASB/CSB, pp. 189-192

S. Deck, C. T. Morrow, P. H. Heinemann and Henry J Sommer, 1991, "Neural networks versus traditional classifiers for machine vision inspection", ASAE Paper 91-3502, pp. 13

Henry J Sommer and R. Krishnan, 1991, "Three dimensional monocular pose measurement using computational neural networks", Proc. Intelligent Robots and Computer Vision X Conference, SPIE, 1608, pp. 472-479

Henry J Sommer, C. C. Kao and S. R. Turns, 1990, "Enhancement and morphometric analysis of digital images of turbulent flames", Proc. 2nd Fossil Fuel Combustion Symp., ASME, PD, 30, pp. 51-57

M. D. Whalen and Henry J Sommer, 1990, "Design and modal analysis of a prototype link for a flexible robot manipulator", Proc. 8th Int. Modal Analysis Conf., SEM, 8, (2), pp. 1440-1446

C. T. Morrow, P. H. Heinemann, Henry 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, pp. 179-188

Henry J Sommer, 1990, "Determination of first and second order instant screw parameters from landmark trajectories", Proc. 21st Mechanisms Conf., ASME, DE, 25, pp. 429-437

J. A. Cafeo, M. W. Trethewey and Henry 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, pp. 1033-1036

M. D. Whalen and Henry J Sommer, 1990, "Mode shape selection for modelling an experimental two-link flexible manipulator", Robotics Research, ASME, DSC, 26, pp. 47-52

Y. Tao, C. T. Morrow, P. H. Heinemann and Henry J Sommer, 1990, "Automated machine vision inspection of potatoes", pp. 20

J. S. Lamancusa, D. A. Saravanos and Henry J Sommer, 1989, "Shape optimization of robotic manipulators for maximum stiffness and load carrying capacity", Advances in Design Automation, ASME, DE, 19, (2), pp. 191-200

S. K. Chittajallu and Henry J Sommer, 1989, "Two-dimensional layout of robot assembly cells", Advances in Manufacturing Systems Engineering, ASME, PED, 37, pp. 169-180

J. C. Wambold and Henry J Sommer, 1988, "Machine vision for inspection of codfish", Proc. Int. Instrumentation Symp., ISA, 34, (1), pp. 71-82

M. W. Trethewey, B. T. Kulakowski, J. S. Lamancusa, Henry 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, pp. 461-469

J. R. Bosnik and Henry J Sommer, 1987, "Vibrational kinematic parameter estimation for robotic manipulators", Proc. 5th Int. Modal Analysis Conf., SEM, London, England, 5, (2), pp. 1432-1437

D. A. Saravanos, J. S. Lamancusa and Henry J Sommer, 1987, "Shape optimum design of robotic manipulators with static performance criteria", Advances in Design Automation, ASME, DE, 10, (2), pp. 37-44

S. K. Chittajallu and Henry J Sommer, 1986, "Layout design for robotic assembly workcells", Proc. ROBOTS 10, SME, pp. 7.59-7.69

D. J. Sanderson, Henry J Sommer and P. R. Cavanagh, 1986, "Modification of the pedaling mechanics of cyclists", Proc. Conf. on Medical Devices and Sporting Equipment, ASME, DE-1, pp. 17-20

S. M. Geyer, M. E. Crouse, Henry J Sommer and S. S. Lestz, 1985, "A versatile oscilloscope microcomputer based data handling system", SAE Paper 852069, pp. 8

D. C. Beppler, D. J. Murphy and Henry J Sommer, 1983, "The design factor in tractor stability surveillance devices", pp. 17

Magazines/Trade Publications

Henry J Sommer and Robert M Crassweller, 2018, "Buy-and-Fly Orchard Management using Unmanned Aircraft (UA)"

Abstracts

Henry J Sommer, T T Lulis and John E Kaminski, 2018, "Comparison of Visual Vegetation Indices from Aerial Images to Measure Turfgrass Health Using Small Unmanned Aircraft"

Henry J Sommer, T T Lulis and John E Kaminski, 2018, "Video Measurement of Golf Green Putting Speed Using a Cellphone"

Manuscripts

H. van Werkhoven, Henry J Sommer and P. E. Martin, , "Refinements of moment-based cost functions improve prediction of experimental moment profiles in cycling"

Henry J Sommer, J. M. Cimbala and D. G. Miller, , "Yaw instability of external sling payloads during level flight", J. Amer. Helicopter Soc.

Henry J Sommer, , "Third-order differential-algebraic equations for improved integration of constrained multibody dynamics", ASME J. Computational and. Nonlinear Dynamics (CND-12-1090)

Henry J Sommer, , "Kinematic jerk and snap for constrained multibody chains", ASME J. Mechanisms and Robotics (JMR-12-1071)

Henry J Sommer, J. M. Cimbala and D. G. Miller, , "Self-excited limit cycle yaw oscillation instability of external sling payloads with dual point suspension during level flight", J. American Helicopter Society

Other

N. Okita and Henry J Sommer, 2014, "Development of a novel gait and foot slip detection algorithm for future humanoids"

J. M. Leondardis, E. W. Sinsel, K. Werner, T. M. Kepple, Henry J Sommer and F. L. Buczek, 2014, "A sparse motion capture development platform accurately predicts lower extremity biomechanics during an occupational lifting task"

F. L. Buczek, E. W. Sinsel, J. M. Leonardis, K. Werner, T. M. Kepple and Henry J Sommer, 2014, "A sparse motion capture development platform for use in occupational biomechanics"

P. M. Garvey, J. Daniels, S. N. Brennan, Henry J Sommer and D. J. Murphy, 2014, "GoPro filming of driver behavior while operating farm tractors"

N. Ochoa-Lleras, A. A. Brown, S. N. Brennan, P. M. Garvey, Henry J Sommer and D. J. Murphy, 2014, "Development of an open-source immersive tractor driving simulator"

Henry J Sommer, A. J. Kuperavage, R. B. Eckhardt, R. M. Norris and M. Henneberg, 2006, "Comparisons of coordinate digitizers for cranial surfaces", 42

R. M. Norris, A. J. Kuperavage, R. B. Eckhardt, Henry J Sommer and M. Henneberg, 2006, "Morphological and molecular measures of Papionine diversity as standards for the interpretation of Hominin diversity", 42

Henry J Sommer, M. F. Heller, N. A. Sharkey and J. H. Challis, 2005, "Postural control related to flexibility of the hindfoot when bearing heavy loads", pp. p. 372

R. B. Eckhardt, A. Kuperavage, Henry J Sommer and K. Galik, 2005, "Short stature or tall story? Hypothesis and imagination in body size reconstruction of LB1 from Flores, Indonesia", pp. p. 913

J. H. Challis and Henry J Sommer, 2002, "Assessment of sincerity of effort during isometric strength testing", pp. 271-272

Henry J Sommer and J. J. Stauffer, 2002, "Handheld slipmeter to measure slip resistance between shoe and flooring materials", pp. p. 338

M. M. Peterman, A. J. Hamel, D. R. Lemmon, Henry J Sommer and P. R. Cavanagh, 2000, "A side suspension device for simulation of locomotion in micro-gravity", pp. 191-192

Henry J Sommer, 2000, "Dual axis cranial accelerometry to assess postural stability", pp. 90

T. W. Flynn, P. R. Cavanagh, Henry J Sommer and J. A. Derr, 1998, "Relationship among age, tibial width, late menarche, and tibial bone quality in young women", Medicine & Science in Sports & Exercise, 30, (5), pp. 47

J. K. Startzell, Henry J Sommer, D. R. Lemmon and P. R. Cavanagh, 1997, "A website for teaching fundamental 3D kinematic analysis", pp. 37-38

C. S. Ripley, S. P. Beals, E. F. Joganic, J. Pomatto, K. Manwaring, S. D. Moss, Henry 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", American Journal of Physical Anthropology, (Supplement 20), pp. 89

Henry J Sommer, 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", pp. 1043-1046

Henry J Sommer and M. W. Powell, 1994, "Feasibility of adjustable prosthetic sockets using shape memory alloy wire", pp. 170-173

M. W. Powell and Henry J Sommer, 1994, "Adjustable prosthetic/orthotic sockets using shape memory alloys", 28, pp. 253-254

T. M. Kepple, Henry J Sommer, K. Lohmann-Siegel and S. J. Stanhope, 1994, "Three dimensional normative databases of muscle origins and insertions for the lower extremities", pp. 37-38

T. Y. Shiang, Henry J Sommer and R. B. Eckhardt, 1993, "Superquadric modeling of cranial contours", American Journal of Physical Anthropology, 36, (Supplement 16), pp. 179

I. S. McClay, P. R. Cavanagh, Henry J Sommer and A. Kalenak, 1991, "The effect of orthotic treatment on tibiofemoral and patellofemoral kinematics", Journal of the American Physical Therapy Association, 71, (6), pp. S-46

I. S. McClay, P. R. Cavanagh, A. Kalenak and Henry J Sommer, 1991, "Three dimensional kinematics of the patellofemoral joint during running", pp. 146-147

B. L. Davis, P. R. Cavanagh, R. Bock and Henry J Sommer, 1991, "Measuring ground reaction forces in a zero-gravity locomotion simulator", pp. 336-338

T. Y. Shiang, Henry J Sommer and R. B. Eckhardt, 1991, "Superquadric modeling of cranial asymmetry", pp. 75-76

C. T. Morrow, P. H. Heinemann, S. Deck, Z. Varghese, Y. Tao, Henry J Sommer, R. M. Crasswelter, R. H. Cole and J. E. McClure, 1991, "Automated inspection of fruits and vegetables", Pennsylvania Fruit News, 71, (2), pp. 44-46

F. L. Buczek, P. R. Cavanagh and Henry J Sommer, 1990, "Three dimensional ankle and knee kinetics during level and grade walking", pp. 85

Henry J Sommer and F. L. Buczek, 1990, "Experimental determination of the instant screw axis and angular acceleration axis", pp. 141-142

F. L. Buczek, P. R. Cavanagh and Henry J Sommer, 1990, "Three dimensional kinematics and kinetics of the ankle and knee during level and grade walking", Journal of Biomechanics, 24, (3), pp. 238

Henry J Sommer and F. L. Buczek, 1990, "Least squares estimation of the instant screw axis and angular acceleration axis", 17, pp. 339-342

Henry J Sommer, 1989, "Computer vision and inspection laboratory", 4, pp. 35-36

Henry J Sommer, 1988, "Three-dimensional normative atlases of contemporary human longbones", American Journal of Physical Anthropology, 75, (2), pp. 273-274

G. M. Dick, K. Tomiyama and Henry J Sommer, 1986, "End-point control of a two-link compliant manipulator", pp. 137-143

G. M. Dick, K. Tomiyama and Henry J Sommer, 1986, "End-point control of a compliant two-link robot", 17, (5), pp. 1739-1745

S. K. Chittajallu and Henry J Sommer, 1985, "Interactive design of the physical layout of robotic assembly cells", pp. 22

M. A. Lafortune, P. R. Cavanagh, A. Kalenak, S. M. Skinner and Henry J Sommer, 1983, "The measurement of normal knee joint motion during walking using intra-cortical pins", pp. 28

W. A. Gendron and Henry J Sommer, 1982, "Pulsed sonic coordinate digitization using point-effect microphones", pp. 167

M. A. Lafortune, P. R. Cavanagh, A. Kalenak, S. M. Skinner and Henry J Sommer, 1982, "The use of intra-cortical pins to measure the kinematics of the knee joint", pp. 40-41

Henry J Sommer and N. R. Miller, 1981, "A technique for analytical representation of normative articular surfaces", pp. 229-231

Henry J Sommer and N. R. Miller, 1980, "Analytical representation of the articular surface of the femoral head", pp. 221-223

Henry J Sommer and N. R. Miller, 1979, "A technique for the estimation of kinematic parameters of a spatial anatomical joint model", pp. 219-222

Henry J Sommer and N. R. Miller, 1979, "Regressive osteometric scaling applications to mirror symmetry and statistical coordinate models", pp. 87-98

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