Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"biomechanical modeling"”.
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Biomechanical Modeling of the Masticatory Region
Biomechanical simulation is an essential tool for the understanding of the human masticatory system, because many parameters and functions cannot be studied in vivo due to the invasiveness of their examination methods. Previous simulation studies include investigations of the masticatory cycle, the …
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Interactive tools for biomechanical modeling and realistic animation
We describe a semi-automatic technique for modeling and animating complex musculoskeletal systems using a strand based muscle model. Using our interactive tools, we are able to generate the motion of tendons and muscles under the skin of a traditionally animated character. This is achieved by …
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Improving Treatment of Local Liver Ablation Therapy With Deep Learning and Biomechanical Modeling
… <p>For this work, we hypothesized that biomechanical modeling could be used to reduce the spatial uncertainties inherent in PTA, furthermore, that deep learning could create segmentations that are qualitatively preferred to manual contours of the liver , delineate the liver structures …
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Assessing Trailer Material Handling Tasks: Biomechanical Modeling, Posture Categorization, Physiological Measure, and Subjective Rating
… MMH design was evaluated by the criteria of biomechanical loading, working posture, physiological measure, and subjective rating of exertion. These four methods were used to generate four dependent measures: L5/S1 Compression Force, OWAS Action Category, mean heart rate, and Borg CR-10 RPE. …
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Motion Estimation and Motion-Compensated Reconstruction for Four-Dimensional Cone Beam Computed Tomography (4D-CBCT)
… inter-phase motion model accuracy. Two methods, biomechanical modeling based and convolutional neural network (CNN) based, were applied to fine-tune the inner lung motion model. The biomechanical modeling is a physics-driven method which introduced tissue related elasticity properties to simulate …
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Development of Biodynamic Modules for Forensic Applications
… laboratory portion of a course in biodynamic modeling, with particular emphasis towards applications in forensic engineering. Three course modules have been developed which explore the whiplash injury mechanism, pilot ejection and windblast, and gait analysis. These case studies make use of …
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A comparative study of surrogate musculoskeletal models using various neural network configurations
The central idea in musculoskeletal modeling is to be able to predict body-level (e.g. muscle forces) as well as tissue-level information (tissue-level stress, strain, etc.). To develop computationally efficient techniques to analyze such models, surrogate models have been introduced which …
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Joint Center Movement Analysis and 3D Motion Modeling of Upper Arm - Comparison of Several Algorithms with the Visual 3-D Program
… tool for clinicians. There are existing biomechanical modeling tools like Visual 3-D etc, that are used for motion analysis. Visual 3-D was developed by the movement disorders laboratory at NIH. The preferred method is to place markers on the segments and calculate the joint center …
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Biomechanics-Based Optimization for Exoskeleton Design
The goal of this thesis is to use biomechanical data describing shoulder motion to determine optimal parameters to assist in the design of a 5 DOF active shoulder exoskeleton. This thesis will provide a proof of concept on optimization techniques using motion data using a simplified 3 DOF model to …
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Creation and Validation of a Dynamic, EMG-Driven Cervical Spine Model
Biomechanical modeling is one of the ways to assess the risk of pain and injury to an individual. Injuries and pain are becoming more common in the cervical spine. There are many cervical spine models available, but almost all of them were made to study impact loading (whiplash), which makes them …
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Evaluation of Markerless Motion Capture to Assess Physical Exposures During Material Handling Tasks
… we systematically evaluated MMC for assessing biomechanical demands, by comparing outputs from a full-body musculoskeletal model driven by kinematic and kinetics from gold standard input and estimates derived from the MMC and in-sole pressure measurement system. Overall, the findings of these …
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A Subject Specific Surface Electromyography Model For Estimating L4/L5 Compressive Loading
… and lumbar loading. Electromyography (EMG) modeling is a non-invasive tool shown to report physiologically appropriate lumbar loading. In this thesis I developed a non-invasive EMG model to measure L4/5 compressive loading and applied the model to measure differences in L4/5 compressive …