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Articles 1 - 8 of 8
Full-Text Articles in Entire DC Network
Comparative Study On Posture And Its Influences On Horizontal Ground Reaction Forces Generated By Muscles: Implications For Crouch Gait, Hoa Xuan Hoang
Comparative Study On Posture And Its Influences On Horizontal Ground Reaction Forces Generated By Muscles: Implications For Crouch Gait, Hoa Xuan Hoang
Masters Theses
Crouch gait decreases walking efficiency due to the increased knee and hip flexion during the stance phase of gait. Crouch gait is generally considered to be disadvantageous for patients with cerebral palsy; however, a crouched posture may afford biomechanical advantages that lead some patients to adopt a crouch gait.
To investigate one possible advantage of crouch gait, a musculoskeletal model created in OpenSim was placed in 15 different postures from upright to severe crouch during initial, middle, and final stance of the gait cycle. A series of optimizations were performed for each posture to maximize ground reaction forces for the …
A Novel Free Form Femoral Cutting Guide, Wesley Andrew Underwood
A Novel Free Form Femoral Cutting Guide, Wesley Andrew Underwood
Masters Theses
Knee arthoplasty is a common procedure that requires the removal of damaged bone and cartilage from the distal femur so that a reconstructive implant may be installed. Traditionally, a five planar resection has been accomplished with a universal cutting box and navigated with either metal jigs or optically tracked computer navigation systems. Free form, or curved, resections have been made possible with surgical robots which control the resection pathway and serve as the navigation system. The free form femoral cutting guide serves as a non powered framework to guide a standard surgical drill along an anatomically defined pathway, resulting in …
Dynamics, Electromyography And Vibroarthrography As Non-Invasive Diagnostic Tools: Investigation Of The Patellofemoral Joint, Filip Leszko
Dynamics, Electromyography And Vibroarthrography As Non-Invasive Diagnostic Tools: Investigation Of The Patellofemoral Joint, Filip Leszko
Doctoral Dissertations
The knee joint plays an essential role in the human musculoskeletal system. It has evolved to withstand extreme loading conditions, while providing almost frictionless joint movement. However, its performance may be disrupted by disease, anatomical deformities, soft tissue imbalance or injury. Knee disorders are often puzzling, and accurate diagnosis may be challenging. Current evaluation approach is usually limited to a detailed interview with the patient, careful physical examination and radiographic imaging. The X-ray screening may reveal bone degeneration, but does not carry sufficient information of the soft tissue conditions. More advanced imaging tools such as MRI or CT are available, …
Seasonal Initial Concentrations And In-Field Decay Rates Of Escherichia Coli And Bovine Bacteroidetes In Beef Cattle Manure, Jiangwei Liu
Seasonal Initial Concentrations And In-Field Decay Rates Of Escherichia Coli And Bovine Bacteroidetes In Beef Cattle Manure, Jiangwei Liu
Masters Theses
Eight naturally deposited beef cow manure patties were sampled during summer (July 19 to August 9, 2010), fall (October 26 to November 19, 2010), winter (January 14 to February 18, 2011), and spring (May 5-27, 2011) to determine whether hypothesized seasonal differences existed in the initial concentrations and decay rates of Escherichia coli (E. coli) and bovine Bacteroidetes (BoBac). E. coli concentrations were estimated as culturable colony forming units (CFU) and with a quantitative polymerase chain reaction (qPCR) assay targeting the 23S ribosomal gene. BoBac was quantified with a qPCR assay targeting a 16S ribosomal gene sequence associated …
Applications Of Nanoparticle Image Velocimetry In Nanofluids, Sara Salim Haque
Applications Of Nanoparticle Image Velocimetry In Nanofluids, Sara Salim Haque
Masters Theses
Particle Image Velocimetry (PIV) is an optical technique used for the visualization of fluid flow. PIV can be combined with other techniques to enhance the analysis of fluid flow. A novel far-field plasmonic resonance enhanced nanoparticle-seeded Particle Image Velocimetry (nPIV) has been demonstrated to measure the velocity in a micro channel. Chemically synthesized silver nanoparticles have been used to seed the flow. By using Discrete Dipole Approximation (DDA), plasmonic resonance enhanced light scattering has been calculated for spherical silver nanoparticles with diameters ranging from 15 nm to 200 nm in two media: water and air. The diffraction-limited plasmonic resonance enhanced …
Positron Emission Tomography (Pet) For Flow Measurement, Bi Yao Zhang
Positron Emission Tomography (Pet) For Flow Measurement, Bi Yao Zhang
Masters Theses
Positron Emission Tomography (PET) is frequently used for medical imaging. Maturity and flexibility of PET as an imaging technique has expanded its utility beyond the medical domain. It can be used as a tool for fluid flow studies in opaque fluids and for flow within complex geometry where conventional optical flow measurement approaches fail. This study explores the capabilities of PET as flow measurement tool suited to validation of computational fluid dynamic (CFD) predictions.
The MicroPET P4 scanner was used to image the diffusion process in flow around a rod bundle geometry similar to that found in a nuclear reactor …
Modeling Of Human Hand Motion In A Maya Environment, Andrew M. Quinn, Aeshan Ali, Tessa Taylor, Quincy Beasley
Modeling Of Human Hand Motion In A Maya Environment, Andrew M. Quinn, Aeshan Ali, Tessa Taylor, Quincy Beasley
Chancellor’s Honors Program Projects
No abstract provided.
Feasibility Of A Touch Sensitive Breast Phantom For Use In The Training Of Physicians In Clinical Breast Examination, Corinne Ashlie Davis, Katherine Lynn Mittura, Grace Elizabeth Copeland, Erica Martina Hawkins
Feasibility Of A Touch Sensitive Breast Phantom For Use In The Training Of Physicians In Clinical Breast Examination, Corinne Ashlie Davis, Katherine Lynn Mittura, Grace Elizabeth Copeland, Erica Martina Hawkins
Chancellor’s Honors Program Projects
No abstract provided.