Design And Development Of A Stair Ascension Assistive Device For Transfemoral Amputees, 2013 California Polytechnic State University, San Luis Obispo
Design And Development Of A Stair Ascension Assistive Device For Transfemoral Amputees, Casey Michael Barbarino
Master's Theses
Transfemoral amputees around the world experience increased difficulty in climbing stairs due to lack of muscle, balance, and other factors. The loss of a lower limb greatly diminishes the amount of natural force generation provided that is necessary to propel oneself up stairs. This study investigated possible solutions to the problem of stair ascension for transfemoral amputees by the means of designing and developing an externally attachable device to a prosthesis. The number of amputations from military service has greatly increased since 2008, which shows there is a clear need for assistive devices (Wenke, Krueger, & Ficke, 2012). With the …
Hir Prosthetics Research Group Achievements: Road To Success, 2013 University of Malaya
Hir Prosthetics Research Group Achievements: Road To Success, Arezoo Eshraghi
AREZOO ESHRAGHI
No abstract provided.
Magnetic Suspension System, 2013 University of Malaya
Universal Personal Transfer, 2013 University of Tennessee, Knoxville
Universal Personal Transfer, Arian Nasab
Chancellor’s Honors Program Projects
No abstract provided.
Modeling The Zimmer Fitmore And Ml Taper Implantation, 2013 California Polytechnic State University, San Luis Obispo
Modeling The Zimmer Fitmore And Ml Taper Implantation, Tyler Kazuo Franklin
Master's Theses
With more young adults requiring total hip
arthroplasties the need for bone saving implants becomes
more important. The Zimmer Fitmore is a new bone saving
implant that utilizes an implantation technique that
reduces the damage to the muscle tissue allowing for
patients to have a short recovery time as well as a new
design that allows it to rest on the medial cortex. There
has been anecdotal evidence that this device leads to early
revision within six months of implantation due to failures
occurring in the medial cortex. The main goal of this
study was to computationally model the Zimmer …
A Microfluidic Pretreatment Isoelectric Focusing Dc-Field Assisted H-Filter For The Separation Of Charged Particles, 2013 California Polytechnic State University, San Luis Obispo
A Microfluidic Pretreatment Isoelectric Focusing Dc-Field Assisted H-Filter For The Separation Of Charged Particles, Cameron Sean Carroll
Biomedical Engineering
Microfluidic devices are small portable diagnostic chips that allow for analysis of a biologic sample at relatively low cost. This makes them ideal for settings where a hospital is unavailable. The microfluidic pretreatment isoelectric focusing DC-field assisted H-filter is a device that allows for the separation of differently charged particles in a biologic sample. It does this by employing the concepts of diffusion, electrophoresis, and isoelectric focusing. This is perfect for isolation of a desired analyte or separation of waste from a sample in order to achieve better diagnostic results. The device was first modeled mathematically and visually using Comsol. …
Development And Application Of A Portable System To Reliably Measure Grip Forces Using Thin-Film Force Sensors, 2013 University of Connecticut - Storrs
Development And Application Of A Portable System To Reliably Measure Grip Forces Using Thin-Film Force Sensors, Shane Tornifoglio
Shane Vincent Tornifoglio
Accurate tracking of hand grip force is an important consideration needed for a robust understanding in the study of human biomechanics. One aspect where it proves useful is in hand-arm vibration, such as from gripping a power tool. Depending on how firmly the user is gripping the tool, they may change their exposure levels to the tool vibration, which can lead to potential disorders such as Hand-Arm Vibration Syndrome (HAVS). A small, battery powered portable force unit has been developed to supply power to, and condition, the signals from eight thin-film force sensors. This gives a better understanding of the …
Effect Of Rolling On Viscoelastic Fluids Using A Novel Testing Device, 2013 CUNY City College
Effect Of Rolling On Viscoelastic Fluids Using A Novel Testing Device, Aswini Mangadu
Dissertations and Theses
The purpose of this research thesis project was to develop a mechanical testing device that could enable us to load articular cartilage with a rolling/sliding motion. This novel device was then used to observe the effect of a rolling motion on the fluid film thickness of different lubricants (motor oil, synovial fluid and Hyaluronic Acid (HA)) to varying loads (1kg, 2,kg, 3kg and 4kg) and speeds (10, 25, 48 and 91 mm/s) applied on the sample fluids for 10 cycles. We were able to examine the effect of different speeds within each load for each of the fluid that was …
The Effects Of Hydrostatic Pressure On Early Endothelial Tubulogenic Processes, 2013 University of Kentucky
The Effects Of Hydrostatic Pressure On Early Endothelial Tubulogenic Processes, Ryan M. Underwood
Theses and Dissertations--Biomedical Engineering
The effects of mechanical forces on endothelial cell function and behavior are well documented, but have not been fully characterized. Specifically, fluid pressure has been shown to elicit physical and chemical responses known to be involved in the initiation and progression of endothelial cell-mediated vascularization. Central to the process of vascularization is the formation of tube-like structures. This process—tubulogenesis—is essential to both the physiological and pathological growth of tissues. Given the known effects of pressure on endothelial cells and its ubiquitous presence in the vasculature, we investigated pressure as a magnitude-dependent parameter for the regulation of endothelial tubulogenic activity. To …
The Effects Of Toning Shoes On The Postural Stability Of Women, 2013 Rose-Hulman Institute of Technology
The Effects Of Toning Shoes On The Postural Stability Of Women, Kevin Farley, Audrey Niverson, Renee Rogge
Rose-Hulman Undergraduate Research Publications
Postural stability is the ability to maintain an upright posture and to keep the center of pressure (COP) within the limits of the body’s base of support. It is maintained through the dynamic integration of muscle activity and joint position. The foot, and therefore footwear, also plays a critical role in postural stability. The goal of this study is to determine the effects of toning shoes on the postural stability of women.
Distal Placement Of An End-To-Side Bypass Graft Anastomosis: A 3d Computational Study, 2013 Old Dominion University
Distal Placement Of An End-To-Side Bypass Graft Anastomosis: A 3d Computational Study, John Di Cicco, Ayodeji Demuren
Mechanical & Aerospace Engineering Faculty Publications
A three-dimensional (3D) computational fluid dynamics study of shear rates around distal end-to-side anastomoses has been conducted. Three 51% and three 75% cross-sectional area-reduced 6 mm cylinders were modeled each with a bypass cylinder attached at a 30-degree angle at different placements distal to the constriction. Steady, incompressible, Newtonian blood flow was assumed, and the full Reynolds-averaged Navier-Stokes equations, turbulent kinetic energy, and specific dissipation rate equations were solved on a locally structured multiblock mesh with hexahedral elements. Consequently, distal placement of an end-to-side bypass graft anastomosis was found to have an influence on the shear rate magnitudes. For the …
Bone Properties By Nanoindentation In Mild And Severe Osteogenesis Imperfecta, 2013 Marquette University
Bone Properties By Nanoindentation In Mild And Severe Osteogenesis Imperfecta, Carolyne Albert, John Jameson, Jeffrey M. Toth, Peter Smith, Gerald F. Harris
Biomedical Engineering Faculty Research and Publications
Background
Osteogenesis imperfecta is a heterogeneous genetic disorder characterized by bone fragility. Previous research suggests that impaired collagen network and abnormal mineralization affect bone tissue properties, however, little data is yet available to describe bone material properties in individuals with this disorder. Bone material properties have not been characterized in individuals with the most common form of osteogenesis imperfecta, type I.
Methods
Bone tissue elastic modulus and hardness were measured by nanoindentation in eleven osteotomy specimens that were harvested from children with osteogenesis imperfecta during routine surgeries. These properties were compared between osteogenesis imperfecta types I (mild, n = …
Properties And Applications Of Sensory Outcome Measures In Carpal Tunnel Syndrome, 2012 The University of Western Ontario
Properties And Applications Of Sensory Outcome Measures In Carpal Tunnel Syndrome, Derek Km Cheung
Electronic Thesis and Dissertation Repository
This thesis aimed to determine the psychometric properties and applications of sensory threshold tools and outcome measures in patients with Carpal Tunnel Syndrome (CTS). The first chapter is a psychometric study that defines clinically important difference (CID), construct validity and responsiveness of touch and vibration threshold tools and in the Symptoms Severity Scale (SSS). The study found the CID for the PSSD and for the SSS was 0.15g/mm2 and 0.50 respectively. The study also found that the Vibrometer was more representative of hand function and responsive compared PSSD. The second objective of this thesis was to determine the feasibility …
خلاصه روابط و معادلات, 2012 SelectedWorks
My Lecture Notes (Power Plant Engineering) - Chapter 4, 2012 Birjand University
My Lecture Notes (Power Plant Engineering) - Chapter 4, Dr Alireza Zolfaghari
Dr Alireza Zolfaghari
No abstract provided.
My Lecture Notes (Power Plant Engineering) - Chapter 3, 2012 Birjand University
My Lecture Notes (Power Plant Engineering) - Chapter 3, Dr Alireza Zolfaghari
Dr Alireza Zolfaghari
No abstract provided.
Effects Of Electrostatic Correlations On Electrokinetic Phenomena, 2012 Massachusetts Institute of Technology
Effects Of Electrostatic Correlations On Electrokinetic Phenomena, Brian Storey, Martin Bazant
Brian Storey
The classical theory of electrokinetic phenomena is based on the mean-field approximation that the electric field acting on an individual ion is self-consistently determined by the local mean charge density. This paper considers situations, such as concentrated electrolytes, multivalent electrolytes, or solvent-free ionic liquids, where the mean-field approximation breaks down. A fourth-order modified Poisson equation is developed that captures the essential features in a simple continuum framework. The model is derived as a gradient approximation for nonlocal electrostatics of interacting effective charges, where the permittivity becomes a differential operator, scaled by a correlation length. The theory is able to capture …
O&P, 2012 University of Malaya
My Lecture Notes (Power Plant Engineering) - Chapter 2, 2012 Birjand University
My Lecture Notes (Power Plant Engineering) - Chapter 2, Dr Alireza Zolfaghari
Dr Alireza Zolfaghari
No abstract provided.
کارگاه تخصصی آسايش حرارتی, 2012 Birjand University
کارگاه تخصصی آسايش حرارتی, Dr Alireza Zolfaghari
Dr Alireza Zolfaghari
No abstract provided.