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2018

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Articles 3601 - 3630 of 8951

Full-Text Articles in Engineering

Treadmill User Centering, Cecilia Hill Yan Yuen, Donavan Chandler Feliz, Ariel Mae Arce Crisostomo, Adam Charles Patrella Jun 2018

Treadmill User Centering, Cecilia Hill Yan Yuen, Donavan Chandler Feliz, Ariel Mae Arce Crisostomo, Adam Charles Patrella

Mechanical Engineering

The goal of team CENTREAD was to design a device to allow a person with a visual disability to run efficiently and effectively on a treadmill without fear of falling off or injuring themselves. The customer wished for the device to be small, lightweight, and have an easy, autonomous setup, while providing feedback to the user wirelessly for them to correct their own movement. The ultimate goal of the device is to allow the user to be comfortable, safe, and free while using it in order to ensure they have the best running experience. The device utilizes ultrasonic sensors in …

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Foot Stress And Blood Flow Sensing Under High-Loading During Hip Surgery, Chris Cardenas, Esther Chen, Claire Kingston, Katie Paswaters, Brianna Rodebaugh Jun 2018

Foot Stress And Blood Flow Sensing Under High-Loading During Hip Surgery, Chris Cardenas, Esther Chen, Claire Kingston, Katie Paswaters, Brianna Rodebaugh

Mechanical Engineering

The PolyHIPS team was tasked with integrating sensors into Stryker’s hip arthroscopy boot that monitor blood flow and heel slip during hip surgery. During hip arthroscopy, the femur head is distracted from the acetabulum to create space in the joint for the surgeon to operate. This requires the use of up to 200 lbf. In order to maintain this space, the foot is held tightly in the boot. Complications can result from the foot being held too tightly in the boot during the procedure. The most common complication is neuropraxia, or temporary nerve damage. PolyHIPS proposes a solution that utilizes …

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Nathan's Mobility Device, Steven A. Decsesznak, Matthew Brenholdt, Lansen Eto, Moulay Salahdin Jun 2018

Nathan's Mobility Device, Steven A. Decsesznak, Matthew Brenholdt, Lansen Eto, Moulay Salahdin

Mechanical Engineering

Nathan’s Mobility Device is a California Polytechnic State University senior project composed of a team of four mechanical engineering students that designed, built and implemented a specialized seat on an existing mobility device. Nathan, the sole beneficiary of this project, is an 11-year-old boy afflicted with a condition known as Spinal Muscular Atrophy (SMA) which causes him extreme muscular weakness. In this report, the team discussed the problem at hand, provides preliminary research and product benchmarking (evaluation and comparison to specific criteria), and described the ideation, prototyping, testing, and iteration plan. In addition, the team explored the final design in …

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Transcatheter Heart Valve Leaflet Assembly Tooling Improvement Final Design Report, James Craig Sherman, Zachary Robert Dicks, Luke Edward Williams Jun 2018

Transcatheter Heart Valve Leaflet Assembly Tooling Improvement Final Design Report, James Craig Sherman, Zachary Robert Dicks, Luke Edward Williams

Mechanical Engineering

Statement of Confidentiality: The complete senior project report was submitted to the project advisor and sponsor. The results of this project are of a confidential nature and will not be published at this time.

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Composite Suspension For A Mass Market Vehicle, Sarah M. Chapiama, Brian Auyeung, Jose Guerrero, Ethan Lau Jun 2018

Composite Suspension For A Mass Market Vehicle, Sarah M. Chapiama, Brian Auyeung, Jose Guerrero, Ethan Lau

Mechanical Engineering

Statement of Confidentiality: The complete senior project report was submitted to the project advisor and sponsor. The results of this project are of a confidential nature and will not be published at this time.

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Curb Navigation, Cole A. Tudor, Kaitlyn R. Adams, Robbie Huerta Jun 2018

Curb Navigation, Cole A. Tudor, Kaitlyn R. Adams, Robbie Huerta

Mechanical Engineering

The Curb Navigation senior project, proposed by the QL+ organization, was presented to find a solution to an issue a former veteran, Velette, is having. Velette has a difficult time maneuvering curbs when out doing day-to-day errands and activities. The goal of this project is to develop a solution that will give Velette the ability to traverse curbs without the assistance of others or the need to do a wheelie that can lead to an injury. The team has found that adapting and optimizing an anti-tipper design may be the best way to solve the proposed challenge. The team decided …

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Driver Cooling System, Joseph Fatin Bolous, Jake Donald Deboer, Alvin Theodore Lau Jun 2018

Driver Cooling System, Joseph Fatin Bolous, Jake Donald Deboer, Alvin Theodore Lau

Mechanical Engineering

This document provides our Final Design Review (FDR) for the Driver Cooling System Project. It contains our background research, which includes current product research, technical research, and information on our sponsor’s needs as a customer as well our manufacturing process, test results, and final design. We created a problem statement to define the scope of the project, discuss sponsor and consumer needs and wants, and technical specifications. After brainstorming, we ultimately selected a thermoelectric cooling system (TEC) after presenting our Preliminary Design Report and Critical Design Report. We built the final prototype, as can be seen in the manufacturing plan, …

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Dynamic Model For Simulating Motion Of The Right Ventricle, Brian Michael Larsen, Sam Koopman Porter, John Francis D'Ambrosio Jun 2018

Dynamic Model For Simulating Motion Of The Right Ventricle, Brian Michael Larsen, Sam Koopman Porter, John Francis D'Ambrosio

Mechanical Engineering

This report documents all the research, ideation, and mockups used to determine right ventricle motion and develop a system capable of reproducing that motion on a tissue sample. The model is intended for evaluating anchoring systems being developed by Edwards Lifesciences for use with tricuspid valve therapies. Several design solutions were considered for the primary functions of recreating motion of the right ventricle and attaching tissue to the device. From these ideas a primary means of producing motion and attaching tissue was selected. These ideas were then developed over the course of a school year to become the final system …

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Additive Manufacturing Powder Removal, Madison A. Lignell, Tyler W. Laird, Kurt K. Reed Jun 2018

Additive Manufacturing Powder Removal, Madison A. Lignell, Tyler W. Laird, Kurt K. Reed

Mechanical Engineering

Metal powder-bed fusion is an additive manufacturing process which enables the creation of unique shapes in metal parts that would otherwise be difficult, expensive, or impossible to machine. Metallic powder is melted and fused together by either a laser or electron beam to produce parts quickly. The excess powder covers newly printed parts and can be difficult to remove from small internal features. The scope of this project is to design a device that effectively removes the powder from newly printed parts safely, while reclaiming as much powder as possible for reuse. The solution for this project must be able …

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Mechanical Team Final Design Report: Same Polytechnic College, Meghan L. Smith, Katie D. Nute, Long T. Hoang Jun 2018

Mechanical Team Final Design Report: Same Polytechnic College, Meghan L. Smith, Katie D. Nute, Long T. Hoang

Mechanical Engineering

The purpose of this document is to communicate the research, findings, and recommendations of the mechanical engineering team regarding the Same Polytechnic College project. This report includes a discussion of the design process utilized by the interdisciplinary team to construct preliminary building designs for both classroom and dormitory building modules. The mechanical team conducted testing using the wind tunnel to verify major building envelope design decisions. The following report also includes an explanation of the thermal testing that the team conducted to measure the thermal conductivity, diffusivity, and specific heat of bricks made to mimic those made locally in Same, …

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3-Dimensional Automated Heat Flux Calibration Device, Victor Raul Chacon, David Madison Morrisset, Alex Michael Schnorr, Kevin Scott Jun 2018

3-Dimensional Automated Heat Flux Calibration Device, Victor Raul Chacon, David Madison Morrisset, Alex Michael Schnorr, Kevin Scott

Mechanical Engineering

This document aims to describe the problems in current radiant heat source heat flux calibration techniques and the approach our team took to solve them through automation. The following sections outline the basic premise of the problem we addressed and who our end product benefited. The proceeding sections addresses the research that we have performed regarding heat flux measurements and automation. This research includes current solutions – mostly partial solutions for problems that are similar but not exactly like ours. Following the background research, we define objectives, with specific details that outline how we evaluated different possible solutions, and how …

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Metal Foam Drying Process, Bryce Zander, Ethan Serpa, Daniel Moore, Michael Mullen Jun 2018

Metal Foam Drying Process, Bryce Zander, Ethan Serpa, Daniel Moore, Michael Mullen

Mechanical Engineering

Design and construction of machine to increase the throughput of metal foam that ERG Aerospace produces.

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Interplanetary Transfer Trajectories Using The Invariant Manifolds Of Halo Orbits, Megan S. Rund Jun 2018

Interplanetary Transfer Trajectories Using The Invariant Manifolds Of Halo Orbits, Megan S. Rund

Master's Theses

Throughout the history of interplanetary space travel, the Newtonian dynamics of the two-body problem have been used to design orbital trajectories to traverse the solar system. That is, that a spacecraft orbits only one large celestial body at a time. These dynamics have produced impressive interplanetary trajectories utilizing numerous gravity assists, such as those of Voyager, Cassini, Rosetta and countless others. But these missions required large amounts of delta-v for their maneuvers and therefore large amounts of fuel mass. As we desire to travel farther and more extensively in space, these two-body dynamics lead to impossibly high delta-v values, and …

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Modification Of A Ground Based Atomic Oxygen Simulation Apparatus To Accommodate Three Dimensional Specimens, Charles Ward Jun 2018

Modification Of A Ground Based Atomic Oxygen Simulation Apparatus To Accommodate Three Dimensional Specimens, Charles Ward

Master's Theses

The space environment presents various challenges when designing systems and selecting materials for applications beyond Earth’s atmosphere. For mission success, these challenges must be considered. One of the detrimental aspects of the space en- vironment is Atomic Oxygen, AO. Only present in harmful quantities in Lower Earth Orbit, LEO, AO causes significant damage to materials by breaking molecular bonds. California Polytechnic State University’s, Cal Poly’s, space environments laboratory features an apparatus capable of simulating this environment. Very thin or short samples were tested to observe the mass loss due to erosion of the sample material. Recent modifications to the system …

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The Design, Building, And Testing Of A Constant On Discreet Jammer For The Ieee 802.15.4/Zigbee Wireless Communication Protocol, Alexandre J. Marette Jun 2018

The Design, Building, And Testing Of A Constant On Discreet Jammer For The Ieee 802.15.4/Zigbee Wireless Communication Protocol, Alexandre J. Marette

Master's Theses

As wireless protocols become easier to implement, more products come with wireless connectivity. This latest push for wireless connectivity has left a gap in the development of the security and the reliability of some protocols. These wireless protocols can be used in the growing field of IoT where wireless sensors are used to share information throughout a network. IoT is being implemented in homes, agriculture, manufactory, and in the medical field. Disrupting a wireless device from proper communication could potentially result in production loss, security issues, and bodily harm. The 802.15.4/ZigBee protocol is used in low power, low data rate, …

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Detection Method Of Subclinical Atherosclerosis Of The Carotid Artery With A Hemodynamics Modeling Approach, Marisa Peressini Jun 2018

Detection Method Of Subclinical Atherosclerosis Of The Carotid Artery With A Hemodynamics Modeling Approach, Marisa Peressini

Master's Theses

Subclinical atherosclerosis is an important area of research to evaluate stroke risk and predict localization of plaque. The current methods for detecting atherosclerosis risk are insufficient because it is based on The Framingham Risk Score and carotid intima media thickness, therefore an engineering detection model based on quantifiable data is needed. Laminar and turbulent flow, dictated by Reynolds number and relative roughness, was modeled through the carotid artery bifurcation to compare shear stress and shear rate. Computer-aided design and fluid flow software were used to model hemodynamics through the carotid artery. Data from the model was derived from governing equations …

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Developing, Evaluating, And Demonstrating An Open Source Gateway And Mobile Application For The Smartfarm Decision Support System, Caleb D. Fink Jun 2018

Developing, Evaluating, And Demonstrating An Open Source Gateway And Mobile Application For The Smartfarm Decision Support System, Caleb D. Fink

Master's Theses

The purpose of this research is to design, develop, evaluate, and demonstrate an open source gateway and mobile application for the SmartFarm open source decision support system to improve agricultural stewardship, environmental conservation, and provide farmers with a system that they own. There are very limited options for an open source gateway for collecting data on the farm. The options available are: expensive, require professional maintenance, are not portable between systems, improvements are made only by the manufacturer, limited in customization options, difficult to operate, and data is owned by the company rather than the farmer. The gateway is designed …

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Characterization And Removal Efficiency Comparison Of Bioretention Soil Media Mixtures, Nathan T. Hanson Jun 2018

Characterization And Removal Efficiency Comparison Of Bioretention Soil Media Mixtures, Nathan T. Hanson

Master's Theses

Bioretention cells have become a commonly used green infrastructure technique to help infiltrate and remove contaminants from stormwater runoff. Bioretention cells are constructed from a layered or heterogeneous soil mixture designed to optimize their ability to infiltrate influent stormwater and remove contaminants carried by the water as it filters through the soil media. The soil mixture, composition, and planting vary depending the local regulatory agencies. As urbanization occurs across the United States, more natural land is converted from pervious surfaces, such as grasslands and forests, to impervious surfaces such as asphalt and concrete, to help reduce the impact of the …

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A Multiphase Modified Boost Converter With Reduced Input Current Ripple: Combined Capacitors, Omri Nissan Jun 2018

A Multiphase Modified Boost Converter With Reduced Input Current Ripple: Combined Capacitors, Omri Nissan

Master's Theses

The delivery of high power and smaller footprints through a non-isolated topology demands for the use of multiphase topology in DC-DC converters. Multiphase reduces the ripple observed on both the input and output waveforms; however, it may not be enough to connect to sensitive power sources such as renewable energy sources. A single-phase modified boost converter demonstrates the ability to acquire very minimal input current ripple by addition of passive components. The expansion to multiphase topology is the next logical step for higher power application while furthering the low input current ripple benefit. In this thesis, the multiphase modified boost …

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Me-Em Enewsbrief, June 2018, Department Of Mechanical Engineering-Engineering Mechanics, Michigan Technological University Jun 2018

Me-Em Enewsbrief, June 2018, Department Of Mechanical Engineering-Engineering Mechanics, Michigan Technological University

Department of Mechanical and Aerospace Engineering eNewsBrief

No abstract provided.

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Incorporating Diegetic Elements To Increase Engagement In Games For Engineering Education, Katherine Smith, Yuzhong Shen, Anthony W. Dean Jun 2018

Incorporating Diegetic Elements To Increase Engagement In Games For Engineering Education, Katherine Smith, Yuzhong Shen, Anthony W. Dean

VMASC Publications

One of the difficulties in developing educational games is maintaining player engagement. This engagement is critical for games to provide effective learning experiences. One way to increase engagement in games is to limit interruptions during game play. In educational games, this can be accomplished by incorporating learning or problem-solving elements diegetically. Diegetic elements are those that are part of the game scene. With this in mind, a series of games for Science, Technology, Engineering, and Mathematics (STEM) education has been developed focusing on content in courses that are prerequisites to the engineering curriculum. These games cover topics in pre-calculus, calculus, …

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Photovoltaic System Optimization For An Austere Location Using Time Series Data, Torrey J. Wagner, Eric Lang, Warren Assink, Douglas S. Dudis Jun 2018

Photovoltaic System Optimization For An Austere Location Using Time Series Data, Torrey J. Wagner, Eric Lang, Warren Assink, Douglas S. Dudis

Faculty Publications

In this work we test experimental photovoltaic, storage and generator technologies and investigate their potential to meet austere location energy needs. After defining the energy requirements and insolation of a 1,100-person base, we develop a microgrid model and simulation. Cost optimizations were then performed using hourly time-series data to explore the cost and performance trade-space of a PV-battery-generator system. The work highlights the cost of resiliency and the dependencies of optimum system component sizes on duration and the fully burdened cost of fuel.

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Small Scale Intelligent Vehicle Final Design Report, Paul Rothhammer-Ruiz, Dominic Riccoboni, Sarah De Rosier Jun 2018

Small Scale Intelligent Vehicle Final Design Report, Paul Rothhammer-Ruiz, Dominic Riccoboni, Sarah De Rosier

Mechanical Engineering

No abstract provided.

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Women In Science: Why So Few? [Liberal Arts: Math And Science], Reem Jaafar, Benjamin J. Taylor Jun 2018

Women In Science: Why So Few? [Liberal Arts: Math And Science], Reem Jaafar, Benjamin J. Taylor

Open Educational Resources

This assigment was developed in the context of LaGuardia’s Center for Teaching and Learning sponsored Learning Matters mini grant “Connection Between First Year Seminar and Capstone Learning Experiences.” It provides Liberal Arts experience to students across the academic spectrum and is designed for students in LMF 101 (First-Year Seminar for Liberal Arts: Math & Science) and is conducted in conjunction with students from a capstone course, LIB 200 (Science, Technology, and Humanism). The assignment aligns with the Inquiry and Problem-Solving Core Competency and the Written Ability. In this assignment, LMF 101 students research and read several articles centered on the …

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Lateral Behavior Comparison Of Driven And Screw Piles In Stiff Clay, Sophie Moore Jun 2018

Lateral Behavior Comparison Of Driven And Screw Piles In Stiff Clay, Sophie Moore

Architectural Engineering

This study is concerned with the comparison of driven and screw piles when exposed to lateral forces and the effects of gapping on stiffness and displacement. Stiffness contributions were determined from force-displacement profiles, gap depth formation curves, strain profiles, bending moment profiles, and P-Y curves. Driven piles were found to be about twice as stiff as screw piles at lower displacements. At larger displacements, the stiffness of the two pile types start to converge. When the piles are in full contact with the soil, stiffness contribution is derived from both the soil and the pile. When gapping is exhibited, the …

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Structural Analysis Of The High Bay Steel Reaction Frames, Jerry Hue Truong Luong, Garrett Michael Brown Jun 2018

Structural Analysis Of The High Bay Steel Reaction Frames, Jerry Hue Truong Luong, Garrett Michael Brown

Architectural Engineering

No abstract provided.

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Biosolids-Derived Biochar For Triclosan Removal From Wastewater, Lee K. Kimbell, Yiran Tong, Brooke K. Mayer, Patrick J. Mcnamara Jun 2018

Biosolids-Derived Biochar For Triclosan Removal From Wastewater, Lee K. Kimbell, Yiran Tong, Brooke K. Mayer, Patrick J. Mcnamara

Civil and Environmental Engineering Faculty Research and Publications

Micropollutants, including antibiotics, hormones, pharmaceuticals, and personal care products, are discharged into the environment with liquid and solid effluent streams from water resource recovery facilities (WRRFs). The objective of this research was to determine whether biosolids-derived biochar (BS-biochar) could be used as a sorbent in continuous flow-through columns to remove micropollutants as a polishing step for wastewater treatment. Triclosan (TCS) was selected as a representative micropollutant due to frequent detection in liquid effluents, residual biosolids, and surface waters. Bench-scale column experiments were conducted to determine the effect of flow rate and competition due to the presence of other organic micropollutants …

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Mass Accretion And Ozone Reactivity Of Idealized Indoor Surfaces In Mechanically Or Naturally Ventilated Indoor Environments, Elliott T. Gall, Donghyun Rim Jun 2018

Mass Accretion And Ozone Reactivity Of Idealized Indoor Surfaces In Mechanically Or Naturally Ventilated Indoor Environments, Elliott T. Gall, Donghyun Rim

Mechanical and Materials Engineering Faculty Publications and Presentations

In indoor environments, accretion of mass to materials may provide sites for surface chemistry that differ from those of the original material. Since indoor surfaces are a major sink of oxidant gases, surface mass accretion may impact indoor O3 chemistry. In this study, the effect of surface mass accretion on O3 surface deposition was tested by deploying cleaned borosilicate glass plates in two types of indoor environments: a mechanically ventilated ( MV ) office and a naturally ventilated ( NV ) residence located in Singapore. In each environment, seven replicate glass plates and one field blank were deployed …

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Autonomous Navigation And Mapping Using Lidar, Steven E. Alsalamy, Ben C. Foo, Garrett C. Frels Jun 2018

Autonomous Navigation And Mapping Using Lidar, Steven E. Alsalamy, Ben C. Foo, Garrett C. Frels

Computer Engineering

The goal of this project was to make a fully autonomous robot, capable of mapping its surroundings and navigating through obstacles. This was done through the use of a chassis fitted with tracks and two motors, a lidar, a compass, and a Raspberry Pi. The robot also contains two batteries and is self powered. Encoders are used on the motors in order to track the distance traveled for more precise mapping and movements.

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Darling, Robot For Roborodentia 2018, Michael Le, Steven Liu Jun 2018

Darling, Robot For Roborodentia 2018, Michael Le, Steven Liu

Computer Engineering

For our senior project, our group decided to build a robot to participate in Roborodentia 2018, an annual robotics competition overlooked by Professor Seng that takes place during open house. When taking into consideration the classes that Computer Engineering students had to have taken and the skills that we have developed throughout our time here on campus, a robotics project seemed to be an appropriate culmination of both the technical and non-technical skills that we have acquired.

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