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Articles 1 - 16 of 16

Full-Text Articles in Engineering

Development Of An Opensim Shoulder Model For Manual Wheelchair Users With Tetraplegia, B. Odle, G. Forrest, T. Dyson-Hudson, Jeffrey A. Reinbolt Nov 2011

Development Of An Opensim Shoulder Model For Manual Wheelchair Users With Tetraplegia, B. Odle, G. Forrest, T. Dyson-Hudson, Jeffrey A. Reinbolt

Jeffrey A. Reinbolt

No abstract provided.


A Platform For Dynamic Simulation And Control Of Human Movement, M. B. Mansouri, Jeffrey A. Reinbolt Oct 2011

A Platform For Dynamic Simulation And Control Of Human Movement, M. B. Mansouri, Jeffrey A. Reinbolt

Jeffrey A. Reinbolt

No abstract provided.


Tendon Transfer Of Biarticular Muscles Reduces Balance Recovery: A Computer Simulation Study, A. E. Clark, A. Seth, Jeffrey A. Reinbolt Oct 2011

Tendon Transfer Of Biarticular Muscles Reduces Balance Recovery: A Computer Simulation Study, A. E. Clark, A. Seth, Jeffrey A. Reinbolt

Jeffrey A. Reinbolt

No abstract provided.


Weakened Trunk Muscles Influence Knee Valgus Moments Associated With Acl Injury, K. D. Morgan, C. J. Donnelly, Jeffrey A. Reinbolt Oct 2011

Weakened Trunk Muscles Influence Knee Valgus Moments Associated With Acl Injury, K. D. Morgan, C. J. Donnelly, Jeffrey A. Reinbolt

Jeffrey A. Reinbolt

No abstract provided.


Muscle Forces During Single-Leg Jump Landing, K. D. Morgan, C. J. Donnelly, Jeffrey A. Reinbolt Aug 2011

Muscle Forces During Single-Leg Jump Landing, K. D. Morgan, C. J. Donnelly, Jeffrey A. Reinbolt

Jeffrey A. Reinbolt

No abstract provided.


Crouched Posture Maximizes Ground Reaction Forces Generated By Muscles, H. X. Hoang, Jeffrey A. Reinbolt Jul 2011

Crouched Posture Maximizes Ground Reaction Forces Generated By Muscles, H. X. Hoang, Jeffrey A. Reinbolt

Jeffrey A. Reinbolt

No abstract provided.


Optimizing Whole-Body Kinematics To Minimize Valgus Knee Loading During Single-Leg Landing: Implications For Acl Injury Risk, C. J. Donnelly, D. G. Lloyd, B. C. Elliott, Jeffrey A. Reinbolt Jul 2011

Optimizing Whole-Body Kinematics To Minimize Valgus Knee Loading During Single-Leg Landing: Implications For Acl Injury Risk, C. J. Donnelly, D. G. Lloyd, B. C. Elliott, Jeffrey A. Reinbolt

Jeffrey A. Reinbolt

No abstract provided.


Biarticular Muscles Influence Postural Responses: Implications For Treatment Of Stiff-Knee Gait, A. E. Clark, A. Seth, Jeffrey A. Reinbolt Jun 2011

Biarticular Muscles Influence Postural Responses: Implications For Treatment Of Stiff-Knee Gait, A. E. Clark, A. Seth, Jeffrey A. Reinbolt

Jeffrey A. Reinbolt

No abstract provided.


Simulation Of Human Movement Based On Opensim, Jeffrey A. Reinbolt, A. Seth, S. L. Delp Jun 2011

Simulation Of Human Movement Based On Opensim, Jeffrey A. Reinbolt, A. Seth, S. L. Delp

Jeffrey A. Reinbolt

No abstract provided.


A Musculoskeletal Modeling And Simulation Framework For In Silico Investigations And Exchange, A. Seth, M. Sherman, Jeffrey A. Reinbolt, S. L. Delp Jun 2011

A Musculoskeletal Modeling And Simulation Framework For In Silico Investigations And Exchange, A. Seth, M. Sherman, Jeffrey A. Reinbolt, S. L. Delp

Jeffrey A. Reinbolt

No abstract provided.


The Effectiveness Of Multi-Stage Dehumidification– Humidification For Improving The Cooling Ability Of Evaporative Air Conditioning, Philadelphia University May 2011

The Effectiveness Of Multi-Stage Dehumidification– Humidification For Improving The Cooling Ability Of Evaporative Air Conditioning, Philadelphia University

Philadelphia University, Jordan

No abstract provided.


Development Of A Novel Methodology For Indoor Emission Source Identification, Kwanghoon Han Mar 2011

Development Of A Novel Methodology For Indoor Emission Source Identification, Kwanghoon Han

Kwanghoon Han

The objective of this study was to develop and evaluate a methodology to identify individual sources of emissions based on the measurements of mixed air samples and the emission signatures of individual materials previously determined by Proton Transfer Reaction-Mass Spectrometry (PTR-MS), an on-line analytical device. The methodology based on signal processing principles was developed by employing the method of multiple regression least squares (MRLS) and a normalization technique. Samples of nine typical building materials were tested individually and in combination, including carpet, ceiling material, gypsum board, linoleum, two paints, polyolefine, PVC and wood. Volatile Organic Compound (VOC) emissions from each …


Design And Validation Of A Bi-Axial Loading Bioreactor For Mechanical Stimulation Of Engineered Cartilage, Noor Azuan Jan 2011

Design And Validation Of A Bi-Axial Loading Bioreactor For Mechanical Stimulation Of Engineered Cartilage, Noor Azuan

Noor Azuan

A mechanical-conditioning bioreactor has been developed to provide bi-axial loading to three-dimensional (3D) tissue constructs within a highly controlled environment. The computer-controlled bioreactor is capable of applying axial compressive and shear deformations, individually or simultaneously at various regimes of strain and frequency. The reliability and reproducibility of the system were verified through validation of the spatial and temporal accuracy of platen movement, which was maintained over the operating length of the system. In the presence of actual specimens, the system was verified to be able to deliver precise bi-axial load to the specimens, in which the deformation of every specimen …


Stump Atrophy: Improper Use Of An Iceross Silicone Liner In A Bilateral Transtibial, Hossein Gholizadeh Jan 2011

Stump Atrophy: Improper Use Of An Iceross Silicone Liner In A Bilateral Transtibial, Hossein Gholizadeh

Hossein Gholizadeh

No abstract provided.


Simulation Of Human Movement: Applications Using Opensim, Jeffrey A. Reinbolt, A. Seth, S. L. Delp Jan 2011

Simulation Of Human Movement: Applications Using Opensim, Jeffrey A. Reinbolt, A. Seth, S. L. Delp

Jeffrey A. Reinbolt

Computer simulations are playing an increasingly important role in solving complex engineering problems, and have the potential to revolutionize experimentally-based medical decision making and treatment design. Experiments alone provide important but limited understanding of movement dynamics. Although we can measure some quantities, such as muscle activities and ground reaction forces, responsible for a movement, simulations complement these measurements with estimates of other important variables, such as muscle and joint forces. Simulations also allow us to establish cause-and-effect relationships giving insights into muscle function. Perhaps the most exciting feature of simulations is the potential to perform “what if” studies to test …


Opensim: A Musculoskeletal Modeling And Simulation Framework For In Silico Investigations And Exchange, A. Seth, M. A. Sherman, Jeffrey A. Reinbolt, S. L. Delp Jan 2011

Opensim: A Musculoskeletal Modeling And Simulation Framework For In Silico Investigations And Exchange, A. Seth, M. A. Sherman, Jeffrey A. Reinbolt, S. L. Delp

Jeffrey A. Reinbolt

Movement science is driven by observation, but observation alone cannot elucidate principles of human and animal movement. Biomechanical modeling and computer simulation complement observations and inform experimental design. Biological models are complex and specialized software is required for building, validating, and studying them. Furthermore, common access is needed so that investigators can contribute models to a broader community and leverage past work. We are developing OpenSim, a freely available musculoskeletal modeling and simulation application and libraries specialized for these purposes, by providing: musculoskeletal modeling elements, such as biomechanical joints, muscle actuators, ligament forces, compliant contact, and controllers; and tools for …