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Articles 82771 - 82800 of 196763

Full-Text Articles in Engineering

Group G: Drink Mixer Ii, Yvette Anguiano, Tristram Wilson, Jacob Rother Dec 2017

Group G: Drink Mixer Ii, Yvette Anguiano, Tristram Wilson, Jacob Rother

Mechanical Engineering Design Project Class

We, group G, want to address the needs of the restaurant industry by facilitating it with the products, alcoholic beverages, that often brings in the most income in a night for the business and for its bartenders. Mixing drinks takes specialized attention, energy, and time and can be a stressful task for bartenders to perform when a restaurant is packed with customers. Waits become longer and drink orders back up until the restaurant empties again. Our group strives to create a product that will ensure each customer is served with fast and efficient service, while still providing the special attention …

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Light Activated Blinds Group K, Griffin Beriont, Kessashun Arthur, Madeline Stadler Dec 2017

Light Activated Blinds Group K, Griffin Beriont, Kessashun Arthur, Madeline Stadler

Mechanical Engineering Design Project Class

The purpose of this project is to develop an attachable device to a pair of rolling blinds that will automatically open them when sunlight is detected and close them when the sun goes down. This device will promote energy efficiency during warmer and colder months. And be a commodity for those who tend to forget to open close blinds.

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Blind-Automation Device, Melinda Lai, Dalton Nonweiler, Haley Nichols Dec 2017

Blind-Automation Device, Melinda Lai, Dalton Nonweiler, Haley Nichols

Mechanical Engineering Design Project Class

This project is intended to be a safe, easy, and inexpensive addition to existing window covers to maintain consistent indoor lighting by automatically adjusting blinds in response to ambient light levels. Our target customers are homeowners/renters and business owners concerned about employee productivity and wellness. This product will allow homeowners, business owners, and building tenants to increase occupant productivity. Bright sunlight can cause glare, making employees uncomfortable and reducing their productivity, along with their health. The product will automatically adjust window blinds to maintain a comfortable interior lighting level, promoting productivity and the bottom line. The product can also reduce …

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Interference Unmixing And Estimation Technique For Improvement Of Speech Separation Performance, Ankur Maurya Dec 2017

Interference Unmixing And Estimation Technique For Improvement Of Speech Separation Performance, Ankur Maurya

Dissertations

Presence of noise in the speech can sometimes become annoying as it can lead to loss of important data or create misunderstandings between the communications area which can lead to major problems associated to loss of time and money. This thesis focuses to filter out noise form a speech signal which is simulated in Matlab/Octave software while making a comparison between temporal resolution of signal with respect to the spectral resolution of the signal in which the parameters such as the size of window length are varied in order to obtain the best speech separation performance. To get the best …

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Rc Plane Variable Wing Design, Brian Mincks, Cameron Bard, Noah Rowe Dec 2017

Rc Plane Variable Wing Design, Brian Mincks, Cameron Bard, Noah Rowe

Mechanical Engineering Design Project Class

Each year the AIAA (American Institute of Aeronautics and Astronautics) hosts a design competition where college teams design and fly a small, remote-controlled, battery-powered airplane. For this competition, scoring primarily depends upon the following: maximizing payload, maximizing speed, minimizing weight, minimizing wingspan. Since wingspan is a key scoring factor and variable wing geometry is allowed, our design team has decided to design a pivoting wing system that can be remotely activated immediately before and after takeoff and landing respectively.

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Group Q- Automatic Ball Launching Entity, Zachary White, Tim Grote, Joshua Norlin Dec 2017

Group Q- Automatic Ball Launching Entity, Zachary White, Tim Grote, Joshua Norlin

Mechanical Engineering Design Project Class

The goal of the project is to create a machine that can track and aim at a target and deliver a tennis ball at a safe speed. The machine can be calibrated to ensure accurate aim. The application of the product is for entertainment and sports training, with calibration being able to be used to make easy shots for fun, and difficult shot for training. The device uses a two-axis rotation, allowing it to aim up/down and left/right. The device uses a microprocessor to calculate aim based on position of target and knowledge about the strength of the firing mechanism.

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Group F Drink Mixer - Mixotron, Rebecca Danielle Stone, Christina Bell, Devon Roell Dec 2017

Group F Drink Mixer - Mixotron, Rebecca Danielle Stone, Christina Bell, Devon Roell

Mechanical Engineering Design Project Class

Bars are a great setting for friends to meet and drink however there aren’t many special features that set one bar apart from the rest. What you won’t find in any bar today is robotic bartender able to make any drink to order. In addition, there are many ways to make certain drinks, allowing for much variation. Automating the cocktail making process eliminates the variation in alcohol levels and in ingredients used. In addition, it guarantees that a customer’s drink will not have anything in it that the customer does not explicitly see. Giving the customer options of existing drinks …

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Mems 411 Design Project: Dry Ingredients Dispenser, David Robinson, Maya Wong, Elijah Kessler Dec 2017

Mems 411 Design Project: Dry Ingredients Dispenser, David Robinson, Maya Wong, Elijah Kessler

Mechanical Engineering Design Project Class

No abstract provided.

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Habitat Use Of Blacktip Sharks (Carcharhinus Limbatus) At Fishing Piers, Kelsey L. Spencer Dec 2017

Habitat Use Of Blacktip Sharks (Carcharhinus Limbatus) At Fishing Piers, Kelsey L. Spencer

Electronic Theses and Dissertations

Blacktip sharks (Carcharhinus limbatus) can be observed near fishing piers throughout the summer along the northeast coast of South Carolina. These piers attract and support a wide variety of potential prey and sharks are able to forage on fishers’ discards with minimal energetic cost. I tagged 12 blacktip sharks with acoustic transmitters, monitored piers with acoustic receivers, and conducted pier-creel surveys to determine the habitat use of blacktip sharks at fishing piers, factors that influenced residence time and presence/absence at piers, and any cyclical patterns in visits to piers. Data were analyzed with pier association indices (PAI), mixed models, and …

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Usu Computer Science Students Hack Homelessness | College Of Engineering, Usu College Of Engineering Dec 2017

Usu Computer Science Students Hack Homelessness | College Of Engineering, Usu College Of Engineering

College of Engineering News

Computer science and engineering students from across Utah met on the USU campus recently for the third-annual HackUSU event.

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Understanding Sleep In Pediatric Patients With Sickle Cell Disease Admitted For Vaso-Occlusive Pain Crisis Through Objective Data, Kalindi Narine, Fan Yang, Tanvi Banerjee, Jude Jonassaint, Nirmish Shah Dec 2017

Understanding Sleep In Pediatric Patients With Sickle Cell Disease Admitted For Vaso-Occlusive Pain Crisis Through Objective Data, Kalindi Narine, Fan Yang, Tanvi Banerjee, Jude Jonassaint, Nirmish Shah

Computer Science and Engineering Faculty Publications

Sickle cell disease (SCD) is an inherited red cell disorder that leads to sickling of red blood cells, anemia and vaso-occlusion. The most common reason for hospitalization and morbidity in children is pain due to vaso-occlusive crisis (VOC). Importantly, poor sleep quality can lead to increased pain the subsequent day and nocturnal pain leads to reduced deep sleep, both which can then modify pain sensitivity. Studies using sleep diaries have shown this cyclical relationship between sleep and pain. Frequent occurrences of restless sleep are therefore believed to contribute to an increased severity and intensity of pain episodes. There is very …

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The Automatic Bartender, Richard Wu, Alex Nassar, Keegan Lathrum Dec 2017

The Automatic Bartender, Richard Wu, Alex Nassar, Keegan Lathrum

Mechanical Engineering Design Project Class

The automatic bartender will hold 2 liquors and 2 mixers. When the user selects the option to make a drink, the device will pour out the required amounts of liquid into a container, via tubing that feeds into the container. The container has an internal stirrer to mix the components together, and then empties into a cup. The end result is a finished cocktail, and the machine is designed for residential use.

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2018 Asme Student Design Competition - Group T Senior Design Project, Thomas Hess, Anker Anderson, Drew Daugherty, Jack Dufelmeier Dec 2017

2018 Asme Student Design Competition - Group T Senior Design Project, Thomas Hess, Anker Anderson, Drew Daugherty, Jack Dufelmeier

Mechanical Engineering Design Project Class

The purpose of this project is to create a single soccer playing robot to compete in the 2018 ASME student design competition. The robot, along with spare parts and all other devices must fit inside a 50x50x50 cm box. This robot must be able to traverse the field via remote control and have the ability to control a tennis ball and shoot it with sufficient force.

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Torsional Stiffness Measuring Device, Cheyne Shiroma, Clayton Over, Nadab Wubshet Dec 2017

Torsional Stiffness Measuring Device, Cheyne Shiroma, Clayton Over, Nadab Wubshet

Mechanical Engineering Design Project Class

This device will measure the torsional stiffness of a FSAE race car frame. Our design will apply a torsional load to the frame while simultaneously providing precise measurements required to calculate the applied load, displacement, angular deflection, and torsional stiffness. Unlike the most popular method of testing torsional stiffness by applying load with a lever, our device twists the frame using hydraulic bottle jacks with an integrated pressure gauge. This aspect enables precise control of the twist, and the pressure gauges provide the capability of load-measurement. The validity of measurements will be assessed by comparing results to theoretical calculations.

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Dry Ingredient Dispenser, Group S, 2017, Nick Caywood, Noelle T. Wojciechowsi Dec 2017

Dry Ingredient Dispenser, Group S, 2017, Nick Caywood, Noelle T. Wojciechowsi

Mechanical Engineering Design Project Class

We wanted to come up with a way to automate the process of measuring and dispensing dry ingredients for baking.

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Automated Color Selector, Mark Mcmillin, Mike Mehaffy, Nicholas Mcmillan, Andrew Krieger Dec 2017

Automated Color Selector, Mark Mcmillin, Mike Mehaffy, Nicholas Mcmillan, Andrew Krieger

Mechanical Engineering Design Project Class

Design, build, and sell a safe automated primary color dye mixer to schools for the purpose of teaching children how 12 secondary colors (and shades) on a color wheel can be made via the primary colors. The user will select the desired color (on a color wheel) and the machine will automatically deposit the correct amount of each primary color to create the selected color (or shade). The dye will diffuse in the cup, to create the desired color. Dye will be used in the machine so that if a mess is made, the cleanup is easy. However, we will …

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Tissue Stretching Device, Usama Ismail, Humza Ismail, Elvir Sarajlic Dec 2017

Tissue Stretching Device, Usama Ismail, Humza Ismail, Elvir Sarajlic

Mechanical Engineering Design Project Class

This tissue loading project consists of designing an apparatus that has two main functions. The first, and most obvious of these, being creating a device that will deform a band or disk of tissue with cells pre-seeded on them uniaxially while recording the stress and strain, specifically strain rate, that is applied to the tissue. While the deformation aspect of this device will be key, an equally important part of this project will be designing a part of our tissue loader that mimics the environmental chamber that the lab already uses or is compatible with the environmental chamber that is …

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Heterogeneous Anisotropy Index And Scaling In Multiphase Random Polycrystals, Muhammad Ridwan Murshed Dec 2017

Heterogeneous Anisotropy Index And Scaling In Multiphase Random Polycrystals, Muhammad Ridwan Murshed

Theses and Dissertations

Under consideration is the finite-size scaling of elastic properties in single and two-phase random polycrystals with individual grains belonging to any crystal class (from cubic to triclinic). These polycrystals are generated by Voronoi tessellations with varying grain sizes and volume fractions. By employing variational principles in elasticity, we introduce the notion of a 'Heterogeneous Anisotropy Index' and investigate its role in the scaling of elastic properties at finite mesoscales. The index turns out to be a function of 43 variables, 21 independent components for each phase and the volume fraction of either phase. Furthermore, the relationship between Heterogeneous Anisotropy Index …

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Structural Behavior Of Lap Shear Connections With Thermally Insulating Filler Plates, Salih Qasim Mahmood Dec 2017

Structural Behavior Of Lap Shear Connections With Thermally Insulating Filler Plates, Salih Qasim Mahmood

Dissertations and Theses

This research consists of experimental load tests and numerical simulations of structural steel connections with various filler materials to study the effect of non-steel fillers on the connection strength. Non-steel fillers are used in the steel connections to provide thermal insulation by reducing thermal bridging. Eight specimens having steel and polypropylene filler plates of various thicknesses were tested in the laboratory. The collected data were compared to a Finite Element Analysis (FEA) using ABAQUS to validate the numerical results. After validation, three parametric studies were conducted using ABAQUS to provide insight into general behavior of connections with a variety of …

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2017 Fall Engr333 Seminar Preservation, Trevor Nyeholt, Erik Karlson, Cam Richman, Tyson Butler Dec 2017

2017 Fall Engr333 Seminar Preservation, Trevor Nyeholt, Erik Karlson, Cam Richman, Tyson Butler

ENGR 333

File for student presentation, given by students in the Fall 2017 class of ENGR333.

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2017 Fall Engr333 Poster (Section B), Eric Ball, Mitchell Debruin, Raymond Kolocek, Edwin Kpodzro, Jacob Vandekieft, Nate Anderson, Brennan Steenhoek, Darbi Meyer, Derek Vermerris, Jessica Bouma, Devon Loerop, Reuben Saarloos, Richard Amoh, Matthew Boelens, Tyson Butler, Laura Van Winkle, Alex Keizer, Kwame Ohemeng, Cameron Richman, Julie Van De Riet Dec 2017

2017 Fall Engr333 Poster (Section B), Eric Ball, Mitchell Debruin, Raymond Kolocek, Edwin Kpodzro, Jacob Vandekieft, Nate Anderson, Brennan Steenhoek, Darbi Meyer, Derek Vermerris, Jessica Bouma, Devon Loerop, Reuben Saarloos, Richard Amoh, Matthew Boelens, Tyson Butler, Laura Van Winkle, Alex Keizer, Kwame Ohemeng, Cameron Richman, Julie Van De Riet

ENGR 333

Previously, Calvin College had a cogeneration system with the purpose of generating electricity and heat, through the combustion of natural gas, for Calvin’s campus. The original co-gen system was removed in 2017 due to high costs associated with maintenance and operations. Without a co-gen system, Calvin College is fully dependent on the grid. To save money and help in the President’s Carbon Commitment, PCC, the mechanical engineering students of ENGR 333 (section B) propose the implementation of a new co-gen system.

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2017 Fall Engr333 Poster (Section A), Trevor Nyeholt, Francis Kapesa, Justin Thalmayer, Erik Karlson, Kyle Van Veen, Kirk Brink, Steven Tarske, Brent Homan, Nathan De Haan, Paul Bootsma, Megan Anders, Philip Holmes, Melanie Fox, Noah Pirrotta, Abigail Berkompas, Ben Wellman, Halley Press, Christopher Greaves, Josh Templeman, Tim Bosch, Jake Zandstra, Hendrik Vermeulen Dec 2017

2017 Fall Engr333 Poster (Section A), Trevor Nyeholt, Francis Kapesa, Justin Thalmayer, Erik Karlson, Kyle Van Veen, Kirk Brink, Steven Tarske, Brent Homan, Nathan De Haan, Paul Bootsma, Megan Anders, Philip Holmes, Melanie Fox, Noah Pirrotta, Abigail Berkompas, Ben Wellman, Halley Press, Christopher Greaves, Josh Templeman, Tim Bosch, Jake Zandstra, Hendrik Vermeulen

ENGR 333

Calvin College uses 161,000 MMBTU of natural gas per year, which correlates to $836,000 of annual expenses. However Calvin could save as much as $240,000 on natural gas if they were as efficient as the top performer in an energy audit of similar colleges and universities in the Midwest, conducted by Sightlines Institute. The goal of this project was to see what actions could be taken to save the college $75,000 in annual natural gas costs.

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Optimal Transfer Point Locations In Two-Stage Distribution Systems, Jeffrey A. Mcdougall, Luis Daniel Otero Dec 2017

Optimal Transfer Point Locations In Two-Stage Distribution Systems, Jeffrey A. Mcdougall, Luis Daniel Otero

Electrical Engineering and Computer Science Faculty Publications

Limited range of emerging delivery vehicles, speci cally unmanned aerial systems, creates gaps in last mile retail distribution networks and excludes signi cant numbers of potential customers. Implementing a two-stage distribution process is one approach that eliminates this de cit. However, dispatchers must load the vehicles hauling orders in the initial stage of the process and assign orders for delivery to transfer points in a way that ensures timely arrival while utilizing only the minimum required resources. This paper investigates the capacitated transfer point covering problem which has, until now, been unstudied. The research proposes a mathematical programming model to …

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Development Of An Algorithm For Satellite Remote Sensing Of Sea And Lake Ice, Peter Dorofy Dec 2017

Development Of An Algorithm For Satellite Remote Sensing Of Sea And Lake Ice, Peter Dorofy

Theses and Dissertations

Satellite remote sensing of snow and ice has a long history. The traditional method for many snow and ice detection algorithms has been the use of the Normalized Difference Snow Index (NDSI). This manuscript is composed of two parts. Chapter 1, Development of a Mid-Infrared Sea and Lake Ice Index (MISI) using the GOES Imager, discusses the desirability, development, and implementation of alternative index for an ice detection algorithm, application of the algorithm to the detection of lake ice, and qualitative validation against other ice mapping products; such as, the Ice Mapping System (IMS). Chapter 2, Application of Dynamic Threshold …

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Macroscopic Model Of A Cilium Appendage, Laura Barber, Rachel Mickelson, Wilson Roen, Isabella Merz Dec 2017

Macroscopic Model Of A Cilium Appendage, Laura Barber, Rachel Mickelson, Wilson Roen, Isabella Merz

Mechanical Engineering Design Project Class

The goal of this project is to develop a macroscopic model of the cilia appendage and a realistic testing environment for the model. The model should be created with materials that effectively replicate the material and mechanical properties of the appendage in the human body. Additionally, the testing environment should mimic the viscous fluid that surrounds cilia in the human body to allow for more accurate testing. The fluid’s flow should be parallel to the model and induce instability in the system. This instability should force the cilia model to oscillate like a flag in the wind. Upon completion of …

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Synthesis And Characterization Of Thermoresponsive Hydrogels Based On N-Isopropylacrylamide Crosslinked With 4,4′-Dihydroxybiphenyl Diacrylate, Shuo Tang, Martha Floy, Rohit Bhandari, Manjula Sunkara, Andrew J. Morris, Thomas D. Dziubla, J. Zach Hilt Dec 2017

Synthesis And Characterization Of Thermoresponsive Hydrogels Based On N-Isopropylacrylamide Crosslinked With 4,4′-Dihydroxybiphenyl Diacrylate, Shuo Tang, Martha Floy, Rohit Bhandari, Manjula Sunkara, Andrew J. Morris, Thomas D. Dziubla, J. Zach Hilt

Chemical and Materials Engineering Faculty Publications

A novel crosslinker [4,4′-dihydroxybiphenyl diacrylate (44BDA)] was developed, and a series of temperature-responsive hydrogels were synthesized through free radical polymerization of N-isopropylacrylamide (NIPAAm) with 44BDA. The temperature-responsive behavior of the resulting gels was characterized by swelling studies, and the lower critical solution temperature (LCST) of the hydrogels was characterized through differential scanning calorimetry. Increased content of 44BDA led to a decreased swelling ratio and shifted the LCST to lower temperatures. These novel hydrogels also displayed resiliency through multiple swelling–deswelling cycles, and their temperature responsiveness was reversible. The successful synthesis of NIPAAm-based hydrogels crosslinked with 44BDA has led to a …

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Conjugated Dynamic Modeling On Vanadium Redox Flow Battery With Non-Constant Variance For Renewable Power Plant Applications, Abu Nayem Md. Asraf Siddiquee Dec 2017

Conjugated Dynamic Modeling On Vanadium Redox Flow Battery With Non-Constant Variance For Renewable Power Plant Applications, Abu Nayem Md. Asraf Siddiquee

Student Theses and Dissertations

A parametric modeling study has been carried out to assess the impact of change in operating parameters on the performance of Vanadium Redox Flow Battery (VRFB). The objective of this research is to develop a computer program to predict the dynamic behavior of VRFB combining fluid mechanics, reaction kinetics, and electric circuit. The computer program was developed using Maple 2015 and calculations were made at different operating parameters. Modeling results show that the discharging time increases from 2.2 hours to 6.7 hours when the concentration of V2+ in electrolytes increases from 1M to 3M. The operation time during the charging …

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Technology Planning For Aligning Emerging Business Models And Regulatory Structures: The Case Of Electric Vehicle Charging And The Smart Grid, Kelly R. Cowan Dec 2017

Technology Planning For Aligning Emerging Business Models And Regulatory Structures: The Case Of Electric Vehicle Charging And The Smart Grid, Kelly R. Cowan

Dissertations and Theses

Smart grid has been described as the Energy Internet: Where Energy Technology meets Information Technology. The incorporation of such technology into vast existing utility infrastructures offers many advantages, including possibilities for new smart appliances, energy management systems, better integration of renewable energy, value added services, and new business models, both for supply- and demand-side management. Smart grid also replaces aging utility technologies that are becoming increasingly unreliable, as the average ages for many critical components in utility systems now exceed their original design lives. However, while smart grid offers the promise of revolutionizing utility delivery systems, many questions remain about …

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Utilizing High-Resolution Archived Transit Data To Study Before-And-After Travel-Speed And Travel-Time Conditions, Travis Bradley Glick Dec 2017

Utilizing High-Resolution Archived Transit Data To Study Before-And-After Travel-Speed And Travel-Time Conditions, Travis Bradley Glick

Dissertations and Theses

Travel times, operating speeds, and service reliability influence costs and service attractiveness. This paper outlines an approach to quantify how these metrics change after a modification of roadway design or transit routes using archived transit data. The Tri-County Metropolitan Transportation District of Oregon (TriMet), Portland's public transportation provider, archives automatic vehicle location (AVL) data for all buses as part of their bus dispatch system (BDS). This research combines three types of AVL data (stop event, stop disturbance, and high-resolution) to create a detailed account of transit behavior; this probe data gives insights into the behavior of transit as well as …

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Multi-Hazard Performance Assessment Of High-Rise Buildings, Jad El Khoury Antoun Dec 2017

Multi-Hazard Performance Assessment Of High-Rise Buildings, Jad El Khoury Antoun

LSU Master's Theses

In the last few decades, there has been an important increase in building high-rise constructions in many cities around the world. Since they offer several benefits in populous areas in terms of space efficiency, economy and sustainability, tower buildings attracted practitioners and researchers to understand better their exclusive behavior and response to natural hazards (e.g., hurricanes, earthquakes). Because of their flexibility and their commonly limited damping, skyscrapers are more susceptible to wind and earthquake actions than low- and mid-rise buildings. Moreover, many locations are prone to multiple hazards; hence, it is important to understand thoroughly the structural behavior of structures …

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