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430 full-text articles. Page 1 of 16.

Prosthetic Socket Cooling System, Benjamin K. Kraw, Kathy Ha, Derek Piastrelli, Cuong Lai 2016 California Polytechnic State University – San Luis Obispo

Prosthetic Socket Cooling System, Benjamin K. Kraw, Kathy Ha, Derek Piastrelli, Cuong Lai

Mechanical Engineering

A team of four senior-level undergraduate students in the Interdisciplinary Senior Project Design course in the Engineering Department of California Polytechnic State University: San Luis Obispo have worked to develop a prosthetic socket cooling system, namely for veteran Taylor Morris and exclusively for a transfemoral prosthetic socket, under the Quality of Life+ Laboratory. This cooling system will utilize the thermoelectric effect known as the Peltier effect to transmit heat generated from the residual limb to the surrounding environment by means of forced convection over small aluminum heat sinks. Two measurement devices have also been developed to, one, measure the heat ...


Non-Puncturing, No Slip Thv Leaflet Gripper, Brooks Kelly, Eric Nagaoka, Johnny Phane 2016 California Polytechnic State University, San Luis Obispo

Non-Puncturing, No Slip Thv Leaflet Gripper, Brooks Kelly, Eric Nagaoka, Johnny Phane

Mechanical Engineering

Confidential


Low-Cost Prosthetic Transfemoral Socket, Emelie Deans, Joshua Ledgerwood, Leah Moore, Shaina Jung, Kristen Temnyk 2016 California Polytechnic State University, San Luis Obispo

Low-Cost Prosthetic Transfemoral Socket, Emelie Deans, Joshua Ledgerwood, Leah Moore, Shaina Jung, Kristen Temnyk

Mechanical Engineering

The goal of this senior project was to design and fabricate a low-cost adjustable prosthetic socket for above the knee amputees. This low-cost consideration was incorporated with the original intent to be used in Fiji, however, this changed to the Dominican Republic. It became clear that the need for an adjustable socket was more as a transitional socket. This transitional socket would be used for the first 6 -12 months upon amputation because this when the most amount of volume fluctuation occurs. The project sponsor, LIM Innovations, has already designed the Infinite Socket which contains four main functioning parts: baseplate ...


Biomimetic Seal Flipper Test Rig, Gordon D. Belyea, Laura Kawashiri, Dylan Rinker, Kurt Beske 2016 California Polytechnic State University, San Luis Obispo

Biomimetic Seal Flipper Test Rig, Gordon D. Belyea, Laura Kawashiri, Dylan Rinker, Kurt Beske

Mechanical Engineering

No abstract provided.


Numerical Modeling Of Fluid-Porous Structure Interaction In Arteries, Rana Zakerzadeh, Paolo Zunino 2016 University of Pittsburgh - Main Campus

Numerical Modeling Of Fluid-Porous Structure Interaction In Arteries, Rana Zakerzadeh, Paolo Zunino

Biology and Medicine Through Mathematics Conference

No abstract provided.


A Reduced Order Model For Efficient Physiological Flow Analysis In Aneurysms By Proper Orthogonal Decomposition, Gary Han Chang, Yahya Modarres-Sadeghi 2016 University of Massachusetts Amherst

A Reduced Order Model For Efficient Physiological Flow Analysis In Aneurysms By Proper Orthogonal Decomposition, Gary Han Chang, Yahya Modarres-Sadeghi

UMass Center for Clinical and Translational Science Research Retreat

Simulating physiological flows using computational fluid dynamics (CFD) remains to be computationally expensive and difficult for clinical usage because of the physiological flow and geometrical complexity involved in patient specific situations. We use the reduced order modeling (ROM) of such systems with high nonlinearity and geometrical non-uniformity to replace the full, nonlinear model with a low-degrees of freedom ROM model. We construct ROM models by the proper orthogonal decomposition (POD) method to estimate the flow-induced wall shear stress (WSS) and pressure loading of a simplified abdominal aortic aneurysm and a bifurcation cerebral aneurysm. This method allows us to investigate a ...


Walking Simulator Mechanism, Titus Lungu, Igor Tachynskyy, Omri Tayyara 2016 Cleveland State University

Walking Simulator Mechanism, Titus Lungu, Igor Tachynskyy, Omri Tayyara

The Downtown Review

This paper presents the design, simulation, and kinematic evaluation of a mechanism aimed at simulating both the motion and ground reaction forces produced by a human foot while walking. Such a mechanism can be used to test the durability of shoes through life cycle analysis. In attempting to mimic the physical motion of the human foot as closely as possible, the forces experienced by the human foot were also accurately replicated through the incorporation of a non-stationary testing platform. As is shown in the paper, this testing environment allows for simple adjustments to be made in order to simulate different ...


Mild Traumatic Brain Injury: Combined In Silico And In Vitro Studies, Yi Hua 2016 University of Nebraska-Lincoln

Mild Traumatic Brain Injury: Combined In Silico And In Vitro Studies, Yi Hua

Mechanical (and Materials) Engineering -- Dissertations, Theses, and Student Research

Mild traumatic brain injury (TBI) is a significant public health concern worldwide and has attracted significant attention due to high-impact sport as well as improvised explosive devices used in military conflicts. The earliest sign of mild TBI is associated with cognitive, behavioral and physical/somatic changes, which are commonly invisible to existing medical techniques. Thus it is essential to target mechanisms of mild TBI and its associated damage measures for earlier diagnosis/treatment and enhanced protection strategies.

In this work, the mechanism of blast-induced mild TBI was inspected through integrated in silico and in vitro models. A three-dimensional (3D) human ...


Atomic Force Microscopy Based Dna Analysis, Drew Creighton 2016 University of Arkansas, Fayetteville

Atomic Force Microscopy Based Dna Analysis, Drew Creighton

Mechanical Engineering Undergraduate Honors Theses

This report explores dry and wet scanning of a surface and DNA pickup using an AFM, as well as fluorescent staining of DNA. Dry and wet scans of DNA were obtained using a cantilever AFM tip in tapping mode. Dry scans were found to be clearer than wet scans; however, the drying process was found to decrease the thickness of DNA 2–4 times less than its original thickness. Alternately, wet scans were found to be less clear than dry scans and introduced more noise into the images obtained. Additionally, DNA kept its initial thickness during wet scanning. DNA was ...


Spinal Implant Design And Subsidence, Schuyler E. Price, Lorrin Schoeneweis, Hannah Steele, Matthew Shomper, Timothy L. Norman 2016 Cedarville University

Spinal Implant Design And Subsidence, Schuyler E. Price, Lorrin Schoeneweis, Hannah Steele, Matthew Shomper, Timothy L. Norman

The Research and Scholarship Symposium

A spinal implant may be used in people who have diseased or injured intervertebral discs pushing against their spinal cord and nerves, causing them loss of sensation due to nerve impingement. Patients who have not found relief through non-surgical means may require a discectomy, which removes the disc and relieves the pressure. There are several ways to then fill the resulting gap which include fusion devices, artificial disc replacement (ADR) devices, or bone grafts. Our study focused on the first two mechanical options.

Subsidence, or the vertical movement of the device into the adjacent vertebral bodies, is an often reported ...


Optimizing The Rehabilitation Of Elbow Lateral Collateral Ligament Injuries, Ranita Harpreet Kaur Manocha 2016 The University of Western Ontario

Optimizing The Rehabilitation Of Elbow Lateral Collateral Ligament Injuries, Ranita Harpreet Kaur Manocha

Electronic Thesis and Dissertation Repository

Elbow lateral collateral ligament (LCL) injuries frequently arise following trauma, and can result in disabling instability. Typically such injuries are managed with immobilization followed by a graduated exercise regime; however there is minimal biomechanical evidence to support current treatment protocols. This investigation examines the in vitro effectiveness of several rehabilitation techniques using a custom elbow motion simulator. It was found that active range of motion is safest in the overhead position (n = 7). Early motion in this position may reduce the incidence of elbow stiffness without compromising ligament healing following LCL injury. Forearm pronation and active motion stabilize the LCL-deficient ...


Design And Analysis Of A Lift Assist Walker, Deep P. Shah 2016 California Polytechnic State University – San Luis Obispo

Design And Analysis Of A Lift Assist Walker, Deep P. Shah

Master's Theses and Project Reports

Walkers provided stability to the elderly but cannot assist a person from sitting to standing. The objective of this project is to present the design and analysis of a lift assist walker. This report discusses the design and analysis of a collapsible lift assist walker capable of lifting a patient up to 250 lbs. from seated to standing in under 10 seconds. The designed walker utilized a two stage scissor mechanism with a gas spring assisted embedded linear actuator.


Real-World Industry Collaboration Within A Mechatronics Class, Vidya Nandikolla, Susan Shadle, Patricia Pyke, John Gardner, Robert Grover, Suhas Pharkute 2016 Boise State University

Real-World Industry Collaboration Within A Mechatronics Class, Vidya Nandikolla, Susan Shadle, Patricia Pyke, John Gardner, Robert Grover, Suhas Pharkute

Pat Pyke

This paper describes the implementation and assessment of an innovative senior/graduate level mechatronics (robotics) module that integrated structured and unstructured learning experiences, in collaboration with an industry partner. With real-world constraints and expectations, students designed and delivered a product as the final project. In fall 2007, the corporate partner provided state-of-the-art, programmable robotic kits with a user-friendly programming environment. The assigned project was to design a biomedical robot to work in a hospital intensive care unit (ICU) to perform tasks such as transporting supplies or delivering paperwork. Students with diverse skills and majors were grouped in ten teams, two ...


Modeling Sustainable Agricultural Residue Removal At The Subfield Scale, David Muth, Douglas McCorkle, Joshua Koch, Kenneth Bryden 2016 Idaho National Laboratory

Modeling Sustainable Agricultural Residue Removal At The Subfield Scale, David Muth, Douglas Mccorkle, Joshua Koch, Kenneth Bryden

Doug McCorkle

This study developed a computational strategy that utilizes data inputs from multiple spatial scales to investigate how variability within individual fields can impact sustainable residue removal for bioenergy production. Sustainable use of agricultural residues for bioenergy production requires consideration of the important role that residues play in limiting soil erosion and maintaining soil C, health, and productivity. Increased availability of subfield-scale data sets such as grain yield data, high-fidelity digital elevation models, and soil characteristic data provides an opportunity to investigate the impacts of subfield-scale variability on sustainable agricultural residue removal. Using three representative fields in Iowa, this study contrasted ...


Developing An Integrated Model Framework For The Assessment Of Sustainable Agricultural Residue Removal Limits For Bioenergy Systems, David Muth, Douglas McCorkle, Jared Abodeely, Joshua Koch, Richard Nelson, Kenneth Bryden 2016 Idaho National Laboratory

Developing An Integrated Model Framework For The Assessment Of Sustainable Agricultural Residue Removal Limits For Bioenergy Systems, David Muth, Douglas Mccorkle, Jared Abodeely, Joshua Koch, Richard Nelson, Kenneth Bryden

Doug McCorkle

Agricultural residues have significant potential as a feedstock for bioenergy production, but removing these residues from the land can have negative impacts on soil health. Because of this computational tools are needed that can help guide decisions on the amount of agricultural residue that can be sustainably removed. Models and datasets that can support decisions about sustainable agricultural residue removal are available; however, no tools currently exist that are capable of simultaneously addressing all of the environmental factors that can limit the availability of residue for bioenergy production. This paper presents an integrated framework of models and data that provide ...


Developing An Integrated Model Framework For The Assessment Of Sustainable Agricultural Residue Removal Limits For Bioenergy Systems, David Muth, Douglas McCorkle, Jared Abodeely, Joshua Koch, Richard Nelson, Kenneth Bryden 2016 Idaho National Laboratory

Developing An Integrated Model Framework For The Assessment Of Sustainable Agricultural Residue Removal Limits For Bioenergy Systems, David Muth, Douglas Mccorkle, Jared Abodeely, Joshua Koch, Richard Nelson, Kenneth Bryden

David J. Muth

Agricultural residues have significant potential as a feedstock for bioenergy production, but removing these residues from the land can have negative impacts on soil health. Because of this computational tools are needed that can help guide decisions on the amount of agricultural residue that can be sustainably removed. Models and datasets that can support decisions about sustainable agricultural residue removal are available; however, no tools currently exist that are capable of simultaneously addressing all of the environmental factors that can limit the availability of residue for bioenergy production. This paper presents an integrated framework of models and data that provide ...


Modeling Sustainable Agricultural Residue Removal At The Subfield Scale, David Muth, Douglas McCorkle, Joshua Koch, Kenneth Bryden 2016 Idaho National Laboratory

Modeling Sustainable Agricultural Residue Removal At The Subfield Scale, David Muth, Douglas Mccorkle, Joshua Koch, Kenneth Bryden

David J. Muth

This study developed a computational strategy that utilizes data inputs from multiple spatial scales to investigate how variability within individual fields can impact sustainable residue removal for bioenergy production. Sustainable use of agricultural residues for bioenergy production requires consideration of the important role that residues play in limiting soil erosion and maintaining soil C, health, and productivity. Increased availability of subfield-scale data sets such as grain yield data, high-fidelity digital elevation models, and soil characteristic data provides an opportunity to investigate the impacts of subfield-scale variability on sustainable agricultural residue removal. Using three representative fields in Iowa, this study contrasted ...


A Conceptual Evaluation Of Sustainable Variable-Rate Agricultural Residue Removal, David Muth, Kenneth Bryden 2016 Idaho National Laboratory

A Conceptual Evaluation Of Sustainable Variable-Rate Agricultural Residue Removal, David Muth, Kenneth Bryden

David J. Muth

Agricultural residues have near-term potential as a feedstock for bioenergy production, but their removal must be managed carefully to maintain soil health and productivity. Recent studies have shown that subfield scale variability in soil properties (e.g., slope, texture, and organic matter content) that affect grain yield significantly affect the amount of residue that can be sustainably removed from different areas within a single field. This modeling study examines the concept of variable-rate residue removal equipment that would be capable of on-the-fly residue removal rate adjustments ranging from 0 to 80%. Thirteen residue removal rates (0% and 25–80% in ...


Assessment Of Force Coordination And Neuromuscular Quickness In Healthy Adults, Karen L. Haberland 2016 Rowan University

Assessment Of Force Coordination And Neuromuscular Quickness In Healthy Adults, Karen L. Haberland

Theses and Dissertations

Throughout daily life, it is necessary to handle and control innumerable objects. To do so, one’s hands must be precisely regulated. To ensure that an object is effectively manipulated, an individual must apply a grip force (GF) perpendicular to the object’s surface to overcome load force (LF), which acts tangential to the surface to counteract the object’s weight and inertia. Previous studies have shown an elaborate coordination between GF and LF in a variety of object manipulation tasks in healthy populations. This kinetic analysis is clinically important because the GF-LF coordination is shown to deteriorate in aging ...


Finite Element Modeling For Flexural Behavior Of Hedgehog Spines, Christopher J. Drol 2016 University of Akron

Finite Element Modeling For Flexural Behavior Of Hedgehog Spines, Christopher J. Drol

Honors Research Projects

In this research, the inner morphology of hedgehog spines were analyzed using finite element analysis (FEA) to understand how the inner structure affects the bending stiffness of the spines. We created multiple different models that highlight the different features of inner morphology to analyze the affect that each feature had on the results. The two main feature of the spine that we wanted to analyze were the longitudinal stiffeners, which run from the tip to the base of the spine, and the horizontal central plates, that span the whole circular cross-section of the spine and are perpendicular to the longitudinal ...


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