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Articles 31 - 59 of 59
Full-Text Articles in Mechanical Engineering
A Parametric Study Of The Mechanics Of Different Skin Flap Techniques, Steven J. Meza, Adrián Tepole Buganza
A Parametric Study Of The Mechanics Of Different Skin Flap Techniques, Steven J. Meza, Adrián Tepole Buganza
The Summer Undergraduate Research Fellowship (SURF) Symposium
In modern day plastic and reconstructive surgeries numerous skin flap designs have been developed and are used to close open wounds. Skin flaps are developed with the intention of imposing minimal tension in skin closure. Excessive tension can lead to poor blood flow that result in post-surgery complications such as necrosis. Currently there is no standard in choosing a skin flap design and a surgeon's choice is based personal experience. A comparison of the mechanical loading in these various designs has not yet been done. We have developed a parametric study, using finite element analysis, of two advancement skin flaps …
Dynamic Characterization Of Periodic Lattice Of Elastically-Connected Bi-Stable Elements Under Seismic Excitation, Lingwei Meng, Myungwon Hwang, Andres F. Arrieta Ph.D.
Dynamic Characterization Of Periodic Lattice Of Elastically-Connected Bi-Stable Elements Under Seismic Excitation, Lingwei Meng, Myungwon Hwang, Andres F. Arrieta Ph.D.
The Summer Undergraduate Research Fellowship (SURF) Symposium
Metamaterials are engineered materials, typically in periodic arrangements, which exhibit unconventional or extreme properties not found in nature. Understanding the dynamics of metamaterials enables the design of structures with specific functionalities. The dynamics of metamaterials in linear regime has been relatively well studied in recent years, however the unique phenomena arising from nonlinearities in metamaterials are yet to be explored. In this paper, we focus on an array of bi-stable elements connected by elastic springs under various forms of external excitations acting on the entire system. The general equations of motion are derived to handle any degree-of-freedom (DoF) systems of …
Finite Element Analysis And Biological Growth Realization Using Robot Swarms, Cody W. Dorbin, Adrian Buganza-Tepole
Finite Element Analysis And Biological Growth Realization Using Robot Swarms, Cody W. Dorbin, Adrian Buganza-Tepole
The Summer Undergraduate Research Fellowship (SURF) Symposium
Our understanding of growth and remodeling of biological systems has increased in the past two decades; however, this knowledge has not yet been used in human-designed systems or engineering applications. This project studies designing and building a network of robots that mimics the biological behavior of growth driven by cell-cell communication and control networks. The objective of this research is to harness the principles that govern tissue adaptation and morphogenesis, where peer-to-peer local communication determines global properties, to create human-made engineering systems with life-like capabilities. We used Arduino microcontrollers to control an individual robot in an expandable 3d-printed cuboid shell. …
Modal Phonon Transport Across Interfaces By Non-Equilibrium Molecular Dynamics Simulation, Yang Zhong, Tianli Feng, Xiulin Ruan
Modal Phonon Transport Across Interfaces By Non-Equilibrium Molecular Dynamics Simulation, Yang Zhong, Tianli Feng, Xiulin Ruan
The Summer Undergraduate Research Fellowship (SURF) Symposium
Phonons represent the quantization of lattice vibration, responsible for heat transfer in semiconductors and dielectrics. Phonon heat conduction across interfaces is crucially important for the thermal management of real-life devices such as smartphones, electric vehicles, and satellites. Although recent studies have broadly investigated spectral phonon contribution to lattice thermal conductivity, the mechanism of phonon modal transport across interfaces is still not well-understood. Previous models, including the acoustic mismatch model (AMM) and diffuse mismatch model (DMM), only consider elastic process while neglecting inelastic phonon contributions. Herein, we employ spectral Non-Equilibrium Molecular Dynamics Simulation (NEMD) to probe the temperature and heat flux …
Enhancing The Performance Of A Transportable Environmental Control Unit (Ecu) Operated In High-Temperature Climates, Quan Jun Sun, Ammar M. Bahman, Eckhard A. Groll
Enhancing The Performance Of A Transportable Environmental Control Unit (Ecu) Operated In High-Temperature Climates, Quan Jun Sun, Ammar M. Bahman, Eckhard A. Groll
The Summer Undergraduate Research Fellowship (SURF) Symposium
Numerous people live or venture into environments, such as the Middle East, where the temperatures can skyrocket as high as 54°C. This leaves many air conditioners unable to operate efficiently. Although much research has been conducted for incorporating vapor injection processes into refrigeration systems, such as ones used in supermarkets, little has been researched regarding the application in extreme heat environments. While most basic air conditioning units do not require the addition of a vapor injection process along with an economizer, this project requires the air conditioning (AC) unit to operate under extreme high temperature conditions. The project investigates the …
Image-Based Compression Method Of Three-Dimensional Range Data With Texture, Xia Chen, Tyler Bell, Song Zhang
Image-Based Compression Method Of Three-Dimensional Range Data With Texture, Xia Chen, Tyler Bell, Song Zhang
The Summer Undergraduate Research Fellowship (SURF) Symposium
Recently, high speed and high accuracy three-dimensional (3D) scanning techniques and commercially available 3D scanning devices have made real-time 3D shape measurement and reconstruction possible. The conventional mesh representation of 3D geometry, however, results in large file sizes, causing difficulties for its storage and transmission. Methods for compressing scanned 3D data therefore become desired. This paper proposes a novel compression method which stores 3D range data within the color channels of a regular 2D output image. Our method encodes the 3D range data’s respective normalized phase map, generated by a virtual stereovision system, into two of the output image’s color …
Design Of A Test-Rig For Gerotor Pump, Weijin Qiu, Andrea Vacca, Matteo Pellegri
Design Of A Test-Rig For Gerotor Pump, Weijin Qiu, Andrea Vacca, Matteo Pellegri
The Summer Undergraduate Research Fellowship (SURF) Symposium
Gerotor pumps are a kind of fluid power machines widely used in the automotive field, especially for fuel injection as well as lubrication. To improve the performance of these units, virtual prototyping is necessary to decrease time and cost related to trial and error. Within this research a simulation model for Gerotor units has been developed with the aim of predicting accurately the performance of a generic unit. The model can accurately predict the system behavior regarding mechanical and volumetric losses by considering real machining tolerances and their interactions. Ultimately, this model should help to design new generations of Gerotor …
Sae Baja - Front Suspension And Steering, Gabriel Brumm, Luke Lambert, John Saliba
Sae Baja - Front Suspension And Steering, Gabriel Brumm, Luke Lambert, John Saliba
Scholar Week 2016 - present
The SAE Baja Front Suspension Senior Design Team has successfully chosen a design alternative to build, test, and possibly revise as this project moves forward. The team learned about the problems that occurred with the steering and suspension systems last year at the SAE Baja competition from Dr. Allen and ONU Baja team members that attended competition last year (which includes senior design team member John Saliba). After understanding the failures that occurred last year, the design team set design goals with a focus on increased durability, increased driver control and vehicle handling, and reduced weight.
An Electrochemical Analysis Of Fretting Corrosion In Metal-On-Metal Hip Implants Subjected To High Impaction Loads, Joe Morin, Timothy L. Norman, Thomas K. Fehring
An Electrochemical Analysis Of Fretting Corrosion In Metal-On-Metal Hip Implants Subjected To High Impaction Loads, Joe Morin, Timothy L. Norman, Thomas K. Fehring
The Research and Scholarship Symposium (2013-2019)
The metal-on-metal total hip arthroplasty, a procedure where the hip joint is replaced by a femoral prosthesis with a metal femoral head and a metal socket, has been a popular option for patients requiring a hip joint replacement. Metal on metal hip implants have been a successful implant design until recently where there has been an increased number of failures of this type of implant due to fretting corrosion, believed to be caused from the use of large femoral heads. Fretting corrosion in hip implants results from cyclic micromotion at the taper-trunnion interface; this interface motion removes the protective oxidation …
3d Printing Of Biodegradable Scaffolds For Tissue Engineering Applications, Joe Morin, Michael Pickett, Amy Abraham, Tiera Martinelli
3d Printing Of Biodegradable Scaffolds For Tissue Engineering Applications, Joe Morin, Michael Pickett, Amy Abraham, Tiera Martinelli
The Research and Scholarship Symposium (2013-2019)
With the recent improvements in three dimensional (3D) printing technologies, the potential for tissue engineering and regenerative medicine have significantly improved. One key idea in tissue engineering is to specifically design scaffolds to aid in the healing process by being incorporated into the body’s own tissue. The overall goal of this project is to investigate 3D printable scaffold design to access suitability for tissue replacement. This was accomplished by analyzing the effect of the material used to create the scaffolds, pore size, and pore shape on mechanical stiffness and cell culturability. Based on published literature, it was determined that, depending …
P26. Global Exponential Stabilization On So(3), Soulaimane Berkane
P26. Global Exponential Stabilization On So(3), Soulaimane Berkane
Western Research Forum
Global Exponential Stabilization on SO(3)
Skin Strain Measurement To Predict Knee Joint Angles Through Nanocomposite Stain Gauges, Adin Martineau, James Tracy, Gavin Collins, Parker Rosquist, Dustin A. Bruening, Matt K. Seeley, David T. Fullwood, Anton E. Bowden
Skin Strain Measurement To Predict Knee Joint Angles Through Nanocomposite Stain Gauges, Adin Martineau, James Tracy, Gavin Collins, Parker Rosquist, Dustin A. Bruening, Matt K. Seeley, David T. Fullwood, Anton E. Bowden
Biomedical Engineering Western Regional Conference
Explores the possibility of using high deflection nanocomposite strain gauges as knee joint angle sensor.
Redesign Of Computer Keyboards For Hospital And Consumer Use, Kent Williams, Brian Jensen, Anton Bowden
Redesign Of Computer Keyboards For Hospital And Consumer Use, Kent Williams, Brian Jensen, Anton Bowden
Biomedical Engineering Western Regional Conference
Application of carbon nanotube coatings to computer keyboards in order to reduce the spread of bacteria in hospitals and homes.
Keywords: carbon nanotube, bacteria, antimicrobial, keyboard, design, MRSA, biofilm
Soft-Tissue Artifact Compensation For Electromagnetic Motion Capture, George T. Dickinson, Steven K. Charles
Soft-Tissue Artifact Compensation For Electromagnetic Motion Capture, George T. Dickinson, Steven K. Charles
Biomedical Engineering Western Regional Conference
This purpose of this study is to develop a soft-tissue artifact compensation algorithm for the upper arm using electromagnetic motion capture systems that can be implemented in a wide range of applications. This study focuses on compensation of humeral axial rotation and forearm axial rotation.
Characterization Of Essential Tremor In The Major Degrees Of Freedom Of The Upper Limb, Adam Pigg, David Standring, Steven Charles
Characterization Of Essential Tremor In The Major Degrees Of Freedom Of The Upper Limb, Adam Pigg, David Standring, Steven Charles
Biomedical Engineering Western Regional Conference
No abstract provided.
Simulation Of Tremor Propagation In The Upper Limb, Thomas Corie, Steven K. Charles Dr
Simulation Of Tremor Propagation In The Upper Limb, Thomas Corie, Steven K. Charles Dr
Biomedical Engineering Western Regional Conference
Essential tremor (ET) is the most common movement disorder and is estimated to affect between 1 and 12 million people in the US. Our long-term goal is to develop effective wearable tremor-suppressing devices. To reach this goal, we must first understand how tremor propagates from its mechanical origin (muscle) to the hand, where it matters most. The purpose of the current work is to characterize the extent to which tremor in different muscles or muscle groups contributes to tremor at the hand.
Computational Characterization Of Blood Vessel Strain In Wire Myography, Sameer S. Nandikar, M Converse, K L. Monson
Computational Characterization Of Blood Vessel Strain In Wire Myography, Sameer S. Nandikar, M Converse, K L. Monson
Biomedical Engineering Western Regional Conference
Blood vessels, and the mechanical forces that act on them, play a key role in both health and disease. As a consequence, the mechanical properties of vessels have been under study for over a century. A variety of approaches have been used to define vessel properties, including stretching of vessel rings to study circumferential behavior, a configuration commonly used in wire myography. The objective of the present study was to develop a finite element model to quantify strains throughout a vessel ring during such loading.
A Nanocomposite Sensor Neck Sleeve For Tracking In Vivo Spine Kinematics In The Alpaca, Colton Porter Graham, Anton Bowden
A Nanocomposite Sensor Neck Sleeve For Tracking In Vivo Spine Kinematics In The Alpaca, Colton Porter Graham, Anton Bowden
Biomedical Engineering Western Regional Conference
Chronic low back pain in the US is often attributed to intervertebral disc degeneration. Camelids, particularly alpacas, pose a potential model for spinal treatment due to similarity of the spinal structure and vertical loading. Alpacas also exhibit a high rate of natural disc degeneration. To gain more understanding about how disc degeneration is caused in alpacas it is necessary to understand the loading and motion of the alpaca cervical spine. The goal of the present work was to incorporate nanocomposite sensors into a custom-designed neck sleeve to track the daily in-vivo neck motion of an alpaca in its natural environment.
Using Optimization To Determine Tremor Propagation, Paul Curtis, Steven K. Charles
Using Optimization To Determine Tremor Propagation, Paul Curtis, Steven K. Charles
Biomedical Engineering Western Regional Conference
: Essential Tremor (ET) is one of the most common movement disorders, with millions affected in the US. Currently there are two main treatment options: medication and deep brain stimulation (DBS). Available medications are only 50% effective, and in only 50% of patients, and many patients consider DBS too invasive. The purpose of our research is to determine the origin and propagation of tremor throughout the upper limb.
Portable, Powerless Automation Of Valve Actuation For Microfluidic Large-Scale Integration Technology, Andrew Schmidt Mr., Matt Fitzgerald Mr., Emre Araci Mr., Connor Mcloughlin Mr.
Portable, Powerless Automation Of Valve Actuation For Microfluidic Large-Scale Integration Technology, Andrew Schmidt Mr., Matt Fitzgerald Mr., Emre Araci Mr., Connor Mcloughlin Mr.
Biomedical Engineering Western Regional Conference
Portable, powerless automation of valve actuation for microfluidic large-scale integration technology
Norsepower Rotor Sail Solution, Jukka Kuuskoski
Norsepower Rotor Sail Solution, Jukka Kuuskoski
MARENER 2017
The Norsepower Rotor Sail Solution is a modernized version of the Flettner rotor – a spinning cylinder that uses the Magnus effect to harness wind power to propel a ship. When the wind conditions are favourable, Norsepower Rotor Sails allow the main engines to be throttled back, saving fuel and reducing emissions while providing the power needed to maintain speed and voyage time. Rotor sails can be used with new vessels or they can be retrofitted to existing ships.
Norsepower's first delivery project with two 18-metre Rotor Sails has been completed on board Bore's 9,700 DWT Ro-Ro carrier MS Estraden. …
Biomimetic Improvement Of Hydrodynamic Performance For Tidal Turbines, Weichao Shi
Biomimetic Improvement Of Hydrodynamic Performance For Tidal Turbines, Weichao Shi
MARENER 2017
No abstract provided.
Careers In Engineering Lesson Plan, Lindsay Snowden
Careers In Engineering Lesson Plan, Lindsay Snowden
ENERGY Research and Lesson Plans
Careers in Engineering Lesson Plan. The activity is to create a version of a robotic hand with the supplies provided,
Power House Sustainable Energy Education, Rachael Grillo, Molly Hopper, Laura Mills
Power House Sustainable Energy Education, Rachael Grillo, Molly Hopper, Laura Mills
ENERGY Research and Lesson Plans
No abstract provided.
Solar Energy R & D Project: Teachers Incorporating Stem- Modules To Yield An Energy Literate Generation, Tricia Kirkland, Lindsay Snowden
Solar Energy R & D Project: Teachers Incorporating Stem- Modules To Yield An Energy Literate Generation, Tricia Kirkland, Lindsay Snowden
ENERGY Research and Lesson Plans
Background- Photovoltaic (PV) cells produce the largest amount of electricity when they are directly facing the sun. Solar panels that use tracking systems to position the panel to constantly face the sun have the greatest efficiency. But, these systems are expensive.
Aim- Design a dual axis tracking solar panel with microcontroller and sensors (light, humidity, temperature, and compass) that are both cost effective and efficient. Sensors will be used to determine performance depending on environmental factors.
Ethics Statement: Researchers will keep honest, clear, and accurate records when collecting all data in lab and communication of information learned.
Module 2: Solar Powered Cricket Lab & Engineering Guest Speaker, Lindsay Snowden
Module 2: Solar Powered Cricket Lab & Engineering Guest Speaker, Lindsay Snowden
ENERGY Research and Lesson Plans
Students will participate in a Solar Panel Cricket lab to determine which environmental condition would allow for the solar panel to produce the most power. The three conditions are inside, inside with a flashlight, or outside in the sun. The students will complete a correlating lab worksheet. Students will also ask questions and hold discussions with the guest speaker. Students will actively participate while the guest speaker is presenting.
Renewable Energy, Keith Bazemore
Renewable Energy, Keith Bazemore
ENERGY Research and Lesson Plans
Lesson Plan for Renewable Energy- Environmental Science.
Wind Energy, Bob Deckard, Jaimee Howard
Wind Energy, Bob Deckard, Jaimee Howard
ENERGY Research and Lesson Plans
No abstract provided.
Nsf Energy - Pico-Grid Smart Homes Power Management System, Aaron Specht, Shaina Neal
Nsf Energy - Pico-Grid Smart Homes Power Management System, Aaron Specht, Shaina Neal
ENERGY Research and Lesson Plans
No abstract provided.