Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- California Polytechnic State University, San Luis Obispo (14)
- University of Tennessee, Knoxville (6)
- University of Kentucky (5)
- University of Nebraska - Lincoln (5)
- Department of Primary Industries and Regional Development, Western Australia (4)
-
- Southern Methodist University (4)
- Louisiana State University (3)
- University of Massachusetts Amherst (3)
- Purdue University (2)
- Selected Works (2)
- Bucknell University (1)
- City University of New York (CUNY) (1)
- Illinois State University (1)
- The University of Maine (1)
- Union College (1)
- University of Arkansas, Fayetteville (1)
- University of Central Florida (1)
- University of Texas at Tyler (1)
- Washington University in St. Louis (1)
- Keyword
-
- Mechanical Engineering (4)
- Design (3)
- Finite element analysis (3)
- Mechanical (3)
- Prosthetic (3)
-
- Robotics (3)
- Amputee (2)
- Chick embryo (2)
- DENSE MRI (2)
- Dynamics (2)
- Elastomers (2)
- Finite Element Modeling (2)
- Heart development (2)
- Knee (2)
- Left ventricle (2)
- Multiscale Modeling (2)
- Musculoskeletal modeling (2)
- Rats (2)
- Rehabilitation (2)
- Tractors (2)
- Wheelchair (2)
- 3D DENSE Plugin for Crescent Organ (1)
- 3D Lagrangian Strains (1)
- 3D Langragian Strains (1)
- 3D printing TPU (1)
- 3D-Printing (1)
- AccessClosure (1)
- Acoustic Microfluidics (1)
- Activation (1)
- Adaptive (1)
- Publication Year
- Publication
-
- Mechanical Engineering (12)
- Doctoral Dissertations (5)
- Theses and Dissertations--Mechanical Engineering (5)
- Journal of the Department of Agriculture, Western Australia, Series 4 (4)
- Mechanical Engineering Research Theses and Dissertations (4)
-
- Chancellor’s Honors Program Projects (2)
- Department of Engineering Mechanics: Dissertations, Theses, and Student Research (2)
- Department of Mechanical and Materials Engineering: Dissertations, Theses, and Student Research (2)
- Honors Theses (2)
- LSU Master's Theses (2)
- Master's Theses (2)
- Masters Theses 1911 - February 2014 (2)
- The Summer Undergraduate Research Fellowship (SURF) Symposium (2)
- Annual Symposium on Biomathematics and Ecology Education and Research (1)
- Christine M Buffinton (1)
- Dissertations and Theses (1)
- Electronic Theses and Dissertations (1)
- Faculty Journal Articles (1)
- Graduate Theses and Dissertations (1)
- Honors Undergraduate Theses (1)
- LSU Doctoral Dissertations (1)
- McKelvey School of Engineering Theses & Dissertations (1)
- Md Mahmudur Rahman (1)
- Mechanical Engineering Theses (1)
- Publication Type
- File Type
Articles 31 - 57 of 57
Full-Text Articles in Applied Mechanics
Modeling Of A Head - Neck Assembly Drop Tower Impact Test Using Abaqus, Hussein Sharqi Owaid
Modeling Of A Head - Neck Assembly Drop Tower Impact Test Using Abaqus, Hussein Sharqi Owaid
Electronic Theses and Dissertations
There are numerous potential causes of traumatic brain injury (TBI) and concussions, including traffic accidents, contact during sports and falls. Protection from these injuries is paramount because of the problems that result from TBI, such as loss of thinking and memory capability. Head impact from falls, especially in elderly, can also result in severe to fatal injury and some effects of brain injury are often not visible. For these reasons and more a need exists for protective head gear that can keep persons safe during at risk physical activity and that can protect fall prone persons from accidental injuries. Part …
Dynamic In Vivo Skeletal Feature Tracking Via Fluoroscopy Using A Human Gait Model, William Patrick Anderson
Dynamic In Vivo Skeletal Feature Tracking Via Fluoroscopy Using A Human Gait Model, William Patrick Anderson
Doctoral Dissertations
The Tracking Fluoroscope System II, a mobile robotic fluoroscopy platform, developed and built at the University of Tennessee, Knoxville, presently employs a pattern matching algorithm in order to identify and track a marker placed upon a subject’s knee joint of interest. The purpose of this research is to generate a new tracking algorithm based around the human gait cycle for prediction and improving the overall accuracy of joint tracking.
This research centers around processing the acquired x-ray images of the desired knee joint obtained during standard clinical operation in order to identify and track directly through the acquired image. Due …
Usa Boccia Ball Ramp For Athletes With Quadriplegia, Alissa A. Koukourikos, Matthew Lee, Nathan Bernards
Usa Boccia Ball Ramp For Athletes With Quadriplegia, Alissa A. Koukourikos, Matthew Lee, Nathan Bernards
Mechanical Engineering
In this report, the design process in creating an assistive device for Boccia Classification 3 (BC3) players is outlined. The initial research steps, including research into the rules of the game, capabilities of the players, and existing products is documented to show where ideas for the product stemmed from. This transitions into requirements that the sponsor requested, and preliminary designs and ideas for the product. Finally, this report explains the details of the final design, which has been analyzed for safety, ease of use, and ability to function under different conditions. The processes of manufacturing and testing will also be …
Multiple Consecutive Recapture Of Rigid Nanoparticles Using A Solid-State Nanopore Sensor, Jungsoo Lee
Multiple Consecutive Recapture Of Rigid Nanoparticles Using A Solid-State Nanopore Sensor, Jungsoo Lee
Mechanical Engineering Research Theses and Dissertations
Solid‐state nanopore sensors have been used to measure the size of a nanoparticle by applying a resistive pulse sensing technique. Previously, the size distribution of the population pool could be investigated utilizing data from a single translocation, however, the accuracy of the distribution is limited due to the lack of repeated data. In this study, we characterized polystyrene nanobeads utilizing single particle recapture techniques, which provide a better statistical estimate of the size distribution than that of single sampling techniques. The pulses and translocation times of two different sized nanobeads (80 nm and 125 nm in diameter) were acquired repeatedly …
Comparative Analysis Of Impact Attenuation Properties From Soccer Headgear, Kevin G. Mciver, Goutham N. Sankaran, Justin J. Markel, Tom M. Talavage, Larry J. Leverenz, Eric A. Nauman
Comparative Analysis Of Impact Attenuation Properties From Soccer Headgear, Kevin G. Mciver, Goutham N. Sankaran, Justin J. Markel, Tom M. Talavage, Larry J. Leverenz, Eric A. Nauman
The Summer Undergraduate Research Fellowship (SURF) Symposium
Athletes suffering from long-term neurocognitive deficiency due to subconcussive impacts is a major concern for football and soccer players today. Football players wear helmets that can help reduce injury risks like skull fractures, and these helmets must meet standard criteria that determinines how well a functional helmet should reduce accelerations of the player’s head. Currently no standard exists for testing soccer headgear despite studies demonstrating soccer players experience similar magnitudes of impacts. In this study, a modal impact hammer was used in conjunction with a Hybrid III 50th percentile test dummy head to simulate impacts experienced by soccer players to …
Biventricular Finite Element Modeling And Quantification Of 3d Langragian Strains And Torsion Using Dense Mri, Zhanqiu Liu
Biventricular Finite Element Modeling And Quantification Of 3d Langragian Strains And Torsion Using Dense Mri, Zhanqiu Liu
Theses and Dissertations--Mechanical Engineering
Statistical data suggests that increased use of evidence-based medical therapies has largely contributed to the decrease in American death rate caused by heart disease. And my studies are about two applications of magnetic resonance imaging (MRI) as a non-invasive approach in evidence-based health care research. In my first study, the achievement of a pulmonary valve replacement surgery was assessed on a patient with tetralogy of Fallot (TOF). In order to evaluate the remodeling of right ventricle, two biventricular finite element models were built up for pre-surgical images and post-surgical images. In my second study, 3D Lagrangian strains and torsion in …
Carbon Articulating Backpack Spine, Salvatore Monforte Iii, Darci Lawrence, Savan Patel
Carbon Articulating Backpack Spine, Salvatore Monforte Iii, Darci Lawrence, Savan Patel
Mechanical Engineering
In the field, firefighters and Urban Search and Rescue (USAR) personnel need to transport variable loads efficiently, safely, and comfortably while simultaneously performing certain physical tasks. Current models of external and internal framed backpacks distribute the load of a pack efficiently, but do not allow for the natural movement of the wearer. Wolfpack Gear, Inc. proposed the need for a system which both effectively carries a load and allows for the unhindered natural movement of the user. The goal of this project was to design, build, and test an articulating backpack support system. The first stage of the project comprised …
Three-Dimensional Confocal Microscopy Indentation Method For Hydrogel Elasticity Measurement, Donghee Lee, Md Mahmudur Rahman, You Zhou, Sangjin Ryu
Three-Dimensional Confocal Microscopy Indentation Method For Hydrogel Elasticity Measurement, Donghee Lee, Md Mahmudur Rahman, You Zhou, Sangjin Ryu
Md Mahmudur Rahman
No abstract provided.
Development Of A Shape Memory Polymer Soft Microgripper, Marshall Tatro, David J. Cappelleri, Wuming Jing
Development Of A Shape Memory Polymer Soft Microgripper, Marshall Tatro, David J. Cappelleri, Wuming Jing
The Summer Undergraduate Research Fellowship (SURF) Symposium
The ability to control microrobots by means of magnetic fields has become of increasing interest to researchers. These robots’ ability to reach places tethered microrobots otherwise could not leads to many possible applications in the body, such as delivering drugs to targeted locations and performing biopsies. This study shows the use of shape memory polymer (SMP) to wirelessly actuate a microgripper to be used by a controllable microrobot to achieve these functions. Many smart materials were analyzed in order to find the material that most effectively would accomplish wirelessly gripping, manipulating, and releasing a microobject. Multiple microgripper designs were designed, …
Team Nathan Suspension, Frankie J. Wiggins, Alex D. Seitz, Justin P. Bautista
Team Nathan Suspension, Frankie J. Wiggins, Alex D. Seitz, Justin P. Bautista
Mechanical Engineering
Nathan Cooper is an 8-year old boy with Spinal Muscular Atrophy (SMA). SMA has affected Nathan’s muscle development and requires him to use the Standing Dani™ mobility device. The Standing Dani is a motorized standing wheelchair, or Wheelstand. Nathan controls and uses it to get around. Though the Standing Dani performs well for most functions, it has some distinct issues. The primary issue that this project addresses is its lack of suspension and the discomfort that Nathan feels as a result. After talking with our client, we developed several specifications generally related to geometry, safety, vehicle dynamics, and reliability. Many …
Creasing Instability Of Hydrogels And Elastomers, Dayong Chen
Creasing Instability Of Hydrogels And Elastomers, Dayong Chen
Doctoral Dissertations
CREASING INSTABILITY OF HYDROGELS AND ELASTOMERS MAY 2014 DAYONG CHEN, B.S., TIANJIN UNIVERISTY M.S., TIANJIN UNIVERSITY M.S., UNIVERSITY OF MASSACHUSETTS AMHERST Ph.D., UNIVERSITY OF MASSACHUSETTS AMHERST Directed by: Professor Ryan C. Hayward Soft polymers placed under compressive stress can undergo an elastic creasing instability in which sharp folds spontaneously form on the free surfaces. This process may play an important role in contexts as diverse as brain morphogenesis, failure of tires, and electrical breakdown of soft polymer actuators. While the creasing instability has been used for collotype printing since as early as the 1850s, the scientific appreciation of this instability …
Understanding The Effects Of Blast Wave On The Intracranial Pressure And Traumatic Brain Injury In Rodents And Humans Using Experimental Shock Tube And Numerical Simulations, Aravind Sundaramurthy
Understanding The Effects Of Blast Wave On The Intracranial Pressure And Traumatic Brain Injury In Rodents And Humans Using Experimental Shock Tube And Numerical Simulations, Aravind Sundaramurthy
Department of Engineering Mechanics: Dissertations, Theses, and Student Research
Blast induced neurotrauma (BINT) has been designated as the “signature injury” to warfighters in the recent military conflicts. In the past decade, conflicts in Iraq (operation Iraqi freedom) and Afghanistan (operation enduring freedom) as well as the increasing burden of the terrorism around the world resulted in an increased number of cases with blast Traumatic Brain Injury (bTBI). Recently, a lot of research has been done to study the neurological and neurochemical degenerations resulting from BINT using animal models especially rat models. However, it is not clear how and whether the biological outcomes from animal models can be translated to …
Folding Wheelchair Improvement, Matthew Edison Grace, Kevin Alan Miyamoto, Andrey Lee Oliveira
Folding Wheelchair Improvement, Matthew Edison Grace, Kevin Alan Miyamoto, Andrey Lee Oliveira
Mechanical Engineering
No abstract provided.
Stress And Strain Adaptation In Load-Dependent Remodeling Of The Embryonic Left Ventricle, Christine Buffinton
Stress And Strain Adaptation In Load-Dependent Remodeling Of The Embryonic Left Ventricle, Christine Buffinton
Christine M Buffinton
Altered pressure in the developing left ventricle (LV) results in altered morphology and tissue material properties. Mechanical stress and strain may play a role in the regulating process. This study showed that confocal microscopy, three-dimensional reconstruction, and finite element analysis can provide a detailed model of stress and strain in the trabeculated embryonic heart. The method was used to test the hypothesis that end-diastolic strains are normalized after altered loading of the LV during the stages of trabecular compaction and chamber formation. Stage-29 chick LVs subjected to pressure overload and underload at stage 21 were reconstructed with full trabecular morphology …
Measurement And Description Of Dynamics Required For In Vivo Surgical Robotics Via Kinematic Methods, Jacob G. Greenburg
Measurement And Description Of Dynamics Required For In Vivo Surgical Robotics Via Kinematic Methods, Jacob G. Greenburg
Department of Mechanical and Materials Engineering: Dissertations, Theses, and Student Research
With the goal of improved recovery times and reduced trauma to the patient there has been a substantial shift in the medical community’s demand for minimally invasive surgical (MIS) techniques. With the standardization of MIS becoming more commonplace in the medical field there are still many improvements that are desired. Traditional, manual methods of these surgeries require multiple incisions on the abdomen for the tools and instruments to be inserted. The more recent demand has been to localize the incisions into what is being referred to as a Laparoendoscopic Single-Site (LESS) surgery. Furthermore, the manual instruments that are commonly used …
Mechanics Of Blast Loading On Post-Mortem Human And Surrogate Heads In The Study Of Traumatic Brain Injury (Tbi) Using Experimental And Computational Approaches, Shailesh Govind Ganpule
Mechanics Of Blast Loading On Post-Mortem Human And Surrogate Heads In The Study Of Traumatic Brain Injury (Tbi) Using Experimental And Computational Approaches, Shailesh Govind Ganpule
Department of Engineering Mechanics: Dissertations, Theses, and Student Research
Blast induced neurotrauma (BINT) has been designated as the “signature injury” to warfighters in the recent military conflicts. The occurrence of traumatic brain injury (TBI) in blasts is controversial in the medical and scientific communities because the manifesting symptoms occur without visible injuries. Whether the primary blast waves alone can cause mechanical insult that is comparable to existing traumatic brain injury thresholds is still an open question, and this work is aimed to address this issue.
In the first part of this dissertation, mechanics of primary blast loading on Realistic Explosive Dummy (RED) head with and without helmets is studied …
Application Of Finite Element Method In Protein Normal Mode Analysis, Chiung-Fang Hsu
Application Of Finite Element Method In Protein Normal Mode Analysis, Chiung-Fang Hsu
Masters Theses 1911 - February 2014
This study proposed a finite element procedure for protein normal mode analysis (NMA). The finite element model adopted the protein solvent-excluded surface to generate a homogeneous and isotropic volume. A simplified triangular approximation of coarse molecular surface was generated from the original surface model by using the Gaussian-based blurring technique. Similar to the widely adopted elastic network model, the finite element model holds a major advantage over standard all-atom normal mode analysis: the computationally expensive process of energy minimization that may distort the initial protein structure has been eliminated. This modification significantly increases the efficiency of normal mode analysis. In …
Stress And Strain Adaptation In Load-Dependent Remodeling Of The Embryonic Left Ventricle, Christine Buffinton
Stress And Strain Adaptation In Load-Dependent Remodeling Of The Embryonic Left Ventricle, Christine Buffinton
Faculty Journal Articles
Altered pressure in the developing left ventricle (LV) results in altered morphology and tissue material properties. Mechanical stress and strain may play a role in the regulating process. This study showed that confocal microscopy, three-dimensional reconstruction, and finite element analysis can provide a detailed model of stress and strain in the trabeculated embryonic heart. The method was used to test the hypothesis that end-diastolic strains are normalized after altered loading of the LV during the stages of trabecular compaction and chamber formation. Stage-29 chick LVs subjected to pressure overload and underload at stage 21 were reconstructed with full trabecular morphology …
Viscoelastic Anisotropic Finite Element Mixture Model Of Articular Cartilage Using Viscoelastic Collagen Fibers And Validation With Stress Relaxation Data, Matthew Alexander Griebel
Viscoelastic Anisotropic Finite Element Mixture Model Of Articular Cartilage Using Viscoelastic Collagen Fibers And Validation With Stress Relaxation Data, Matthew Alexander Griebel
Master's Theses
Experimental results show that collagen fibers exhibit stress relaxation under tension and a highly anisotropic distribution. To further develop the earlier model of Stender [1], the collagen constituent was updated to reflect its intrinsic viscoelasticity and anisotropic distribution, and integrated with an existing mixture model with glycosaminoglycans and ground substance matrix. A two-term Prony series expansion of the quasi-linear viscoelastic model was chosen to model the viscoelastic properties of the collagen fibers. Material parameters were determined by using the simplex method to minimize the sum of squared errors between model results and experimental stress relaxation data of tissue in tension. …
Semi-Active Damping For An Intelligent Adaptive Ankle Prosthesis, Andrew K. Lapre
Semi-Active Damping For An Intelligent Adaptive Ankle Prosthesis, Andrew K. Lapre
Masters Theses 1911 - February 2014
Modern lower limb prostheses are devices that replace missing limbs, making it possible for lower limb amputees to walk again. Most commercially available prosthetic limbs lack intelligence and passive adaptive capabilities, and none available can adapt on a step by step basis. Often, amputees experience a loss of terrain adaptability as well as stability, leaving the amputee with a severely altered gait. This work is focused on the development of a semi-active damping system for use in intelligent terrain adaptive ankle prostheses. The system designed consists of an optimized hydraulic cylinder with an electronic servo valve which throttles the hydraulic …
Access|Closure Balloon Catheter Redesign Project, Keenan Bamburg, Yvette Castillo, Elizabeth Eskildsen
Access|Closure Balloon Catheter Redesign Project, Keenan Bamburg, Yvette Castillo, Elizabeth Eskildsen
Mechanical Engineering
No abstract provided.
Strider, Eric Johnson, Alex Trask, Ricardo Garcia
Strider, Eric Johnson, Alex Trask, Ricardo Garcia
Mechanical Engineering
No abstract provided.
Mechanical Simulation Of Articular Cartilage Based On Experimental Results, Kevin Matthew Stewart
Mechanical Simulation Of Articular Cartilage Based On Experimental Results, Kevin Matthew Stewart
Master's Theses
Recently, a constituent based cartilage growth finite element model (CGFEM) was developed in order to predict articular cartilage (AC) biomechanical properties before and after growth. Previous research has noted limitations in the CGFEM such as model convergence with growth periods greater than 12 days. The main aims of this work were to address these limitations through (1) implementation of an exact material Jacobian matrix definition using the Jaumann-Kirchhoff (J-K) method and (2) quantification of elastic material parameters based upon research findings of the Cal Poly Cartilage Biomechanics Group (CPGBG). The J-K method was successfully implemented into the CGFEM and exceeded …
The Setting And Control Of Disc Ploughs, P A. Taylor
The Setting And Control Of Disc Ploughs, P A. Taylor
Journal of the Department of Agriculture, Western Australia, Series 4
THE trailed disc plough is the most commonly used tillage implement in Australian broadacre farming, yet it is considered in some areas to be difficult to set and to operate. These notes provide information resulting from C.S.I.R.O. research to assist operators in the control and operation of trailed disc ploughs.
Four Mobile Picking And Pruning Platforms For Orchards, J C. Rowbotham
Four Mobile Picking And Pruning Platforms For Orchards, J C. Rowbotham
Journal of the Department of Agriculture, Western Australia, Series 4
Shifting ladders around the orchard takes a great deal of time and effort at picking and pruning time.
This article describes four home made labour savers which take most of the ladder work out i f these operations.
Australian Tractor Test Report No. 53 : Chamberlain Countryman 354, G H. Vasey, W. F. Baillie
Australian Tractor Test Report No. 53 : Chamberlain Countryman 354, G H. Vasey, W. F. Baillie
Journal of the Department of Agriculture, Western Australia, Series 4
AUSTRALIAN TRACTOR TEST REPORT
No. 53 - CHAMBERLAIN COUNTRYMAN 354
THE Chamberlain Countryman 354 is a broad-acres cultivation tractor of 77 drawbar horsepower with 87 h.p. at the P.T.O.
Australian Tractor Test Report No. 52 : Chamberlain Champion 306, G H. Vasey, W. F. Baillie
Australian Tractor Test Report No. 52 : Chamberlain Champion 306, G H. Vasey, W. F. Baillie
Journal of the Department of Agriculture, Western Australia, Series 4
AUSTRALIAN TRACTOR TEST REPORT
No. 52 - CHAMBERLAIN CHAMPION 306
THE Chamberlain Champion 306 is a general purpose farm tractor of 57 drawbar horsepower with 68 h.p. at the P.T.O.