Engineering Commons^™

Wall Outlet Electric Meter (Woem), Bretton Gines

Electrical and Computer Engineering

The purpose of this project is to calculate the power consumption in kilowatt-hours (kWh) of household appliances. The idea for this project arose from a job with a utility company where customers would always ask which outlets in their home used the most electricity. Now these customers have a way to know.

Fluorescent Nanocomposite Of Embedded Ceria Nanoparticles In Crosslinked Pva Electrospun Nanofibers, Nader Shehata, Soha Gaballah, Effat Samir, Aya Hamed, Marwa Saad

Biology Faculty Publications

This paper introduces a new fluorescent nanocomposite of electrospun biodegradable nanofibers embedded with optical nanoparticles. In detail, this work introduces the fluorescence properties of PVA nanofibers generated by the electrospinning technique with embedded cerium oxide (ceria) nanoparticles. Under near-ultra violet excitation, the synthesized nanocomposite generates a visible fluorescent emission at 520 nm, varying its intensity peak according to the concentration of in situ embedded ceria nanoparticles. This is due to the fact that the embedded ceria nanoparticles have optical tri-valiant cerium ions, associated with formed oxygen vacancies, with a direct allowed bandgap around 3.5 eV. In addition, the impact of …

Water Resources Systems Analysis: A Bright Past And A Challenging But Promising Future, David E. Rosenberg, Kaveh Madani

Civil and Environmental Engineering Faculty Publications

Our field of water resources systems analysis is now experiencing one of its most exciting eras where scientists, decision makers, and funding agencies want to apply systems approaches to solve varied, complex, uncertain, and interdisciplinary resource management problems. Solving these problems presents great opportunities for us to engage in complex, real-world decision-making and make positive changes. However, to capitalize on these opportunities, we as a field must also overcome several large challenges related to problem identification, integration, blind use of systems tools, a focus on optimality, and harnessing big data. To overcome, we must look back to find what we …

Shear Testing Of Precast Concrete Sandwich Wall Panel Composite Shear Connectors, Jaiden Olsen, Marc Maguire

Civil and Environmental Engineering Faculty Publications

As energy codes become more stringent, thermal efficiency of Precast Concrete Sandwich Panel Walls has become more important. This paper addresses the problem of predicting the behavior of full scale precast concrete sandwich panel walls, using data collected from small, inexpensive push-off specimens. Several fiber reinforced polymer (FRP) connectors being used today underwent shear testing performed on component scale push-off specimens. Each specimen contained several of the FRP connectors and the variables studied were wythe thickness, insulation type and insulation bond. A simplified beam spring model was created which uses beams to represent the concrete wythes and shear springs to …

Electric 4-Wheeler: Making The World A Cleaner Place, Joshua Knighton, Wade Cox

Electrical and Computer Engineering

Due to rising concerns of the air quality, this project was done to demonstrate that carbon dioxide emissions can be eliminated from 4-wheelers by replacing the combustion motor with an electric motor.

The conversion was done using a brushless-DC motor, motor controller, lithium batteries, and an Arduino Mega for instrument control

Electric Bicycle: Not Quite A Motorcycle, Not Even A Scooter, Joseph Jackson, Erik Johansen, Jeremy Thorpe

Electrical and Computer Engineering

This bicycle was intended as a method of learning and applying power electronics methods and skills. Power is transferred from a 24V battery to a 3-phase brushless DC motor. We also wanted to achieve regenerative braking, which charges the battery with the voltage produced in the motor when braking. In order to achieve this, we built a bi-directional boost converter to increase the voltage from 24V at the battery to 50V at the input of a 3-phase inverter. We also devised the control schemes that ensured proper operation of each subsystem within the design.

Open-Air Optical Laser Communication System, Erik Stromberg

Electrical and Computer Engineering

Optical communication systems are quickly becoming one of the fastest growing technological developmental areas for communicating over great distances at high speeds. Using optical components, including emitters, detectors, and optical fibers, systems are capable of transmitting data over long distances at very high data rates.

Remote Diagnosis Of Equipment Failures: A Design For Dynapac Rotating Company, Anthony Swenson

Electrical and Computer Engineering

Dynapac Rotating Company is the industry leader in the design and manufacture of high quality motion products for the sign and display industry.

The president of Dynapac Rotating approached me last summer with a problem he had, and asked me if I would design a solution for my senior project.

The Gift Of Recreation: College Of Engineering, Icon Deliver Innovative Side-By-Side Cycle To Common Ground Outdoor Adventures | College Of Engineering, Usu College Of Engineering

College of Engineering News

Dec. 22, 2015 – In the spirit of giving this holiday season, the College of Engineering at Utah State University and ICON Health & Fitness delivered a much anticipated gift to the staff and clients at Logan’s Common Ground Outdoor Adventures.

On Tuesday, USU and ICON donated a student-built side-by-side tandem cycle that helps make outdoor cycling adventures possible for persons with disabilities.

Undergraduate Research Assistant To Present | Eed, Usu College Of Engineering

College of Engineering News

Steven Wood, an undergraduate research assistant working with Dr. Wade Goodridge in Engineering Education has been accepted to present research at this year’s upcoming Utah Conference on Undergraduate Research (UCUR) located at the University of Utah on February 19th, 2016. He will present research on Spatial Ability and its improvement in a Statics curriculum, a new and leading edge of spatial research that has potential impacts on how we educate our engineering students.

Dr. Goodridge stated “I am very happy that Steven has engaged in this work with me as we need to disseminate to the public the importance that …

Undergraduate Research Assistant Receives Eurp | Engineering Education, Usu College Of Engineering

College of Engineering News

Steven Wood, an undergraduate research assistant working with Dr. Wade Goodridge in Engineering Education has been awarded an EURP for this coming year to engage in research in spatial thinking. Steven will work with over a year of collected spatial ability data to discover the significant gains student achieve in it after completing a Statics course. Spatial ability includes the ability to mentally comprehend an object, diagram, model, etc. and be able to manipulate and visualize it in the mind. Numerous studies have found strong evidence that supports the correlation of high spatial ability to success in STEM coursework and …

Dean Of Engineering Receives Utah Governor’S Medal For Excellence | College Of Engineering, Usu College Of Engineering

College of Engineering News

Dec. 17, 2015 – Utah State University’s College of Engineering Dean Christine Hailey was among ten state leaders recognized this week by Utah Gov. Gary Herbert for outstanding service in academia, education and industry.

Hailey will receive the Governor’s Medal for Excellence at a special gala event on Jan. 13 at Rio Tinto Stadium along with fellow recipients including three other faculty members from USU.

Usu Engineering Study Wins Support From American Heart Association | College Of Engineering, Usu College Of Engineering

College of Engineering News

Dec. 10, 2015 – The American Heart Association is supporting a new study at Utah State University where researchers are developing a technology that may help the human body better protect itself against cardiovascular disease.

Associate Professor of Biological Engineering Jixun Zhan is the chief scientist behind the new study. He and his team are using bacteria to synthesize some of the naturally-occurring compounds found in plants that our bodies already use to combat heart disease.

How Do Changes To The Railroad Causeway In Utah’S Great Salt Lake Affect Water And Salt Flow?, James S. White, Sarah E. Null, David G. Tarboton

Civil and Environmental Engineering Faculty Publications

Managing terminal lake elevation and salinity are emerging problems worldwide. We contribute to terminal lake management research by quantitatively assessing water and salt flow for Utah’s Great Salt Lake. In 1959, Union Pacific Railroad constructed a rock-filled causeway across the Great Salt Lake, separating the lake into a north and south arm. Flow between the two arms was limited to two 4.6 meter wide rectangular culverts installed during construction, an 88 meter opening (referred to locally as a breach) installed in 1984, and the semi porous material of the causeway. A salinity gradient developed between the two arms of the …

Libsbolj 2.0: A Java Library To Support Sbol 2.0, Zhen Zhang, Tramy Nguyen, Nicholas Roehner, Goksel Misirli, Matthew Pocock, Ernst Oberortner, Meher Samineni, Zach Zundel, Jacob Beal, Kevin Clancy, Anil Wipat, Chris J. Myers

Electrical and Computer Engineering Faculty Publications

The Synthetic Biology Open Language (SBOL) is an emerging data standard for representing synthetic biology designs. The goal of SBOL is to improve the reproducibility of these designs and their electronic exchange between researchers and/or genetic design

Mega Wall Block Welded Wire Mesh Connection, Tyler B. Loertscher

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Mechanically Stabilized Earth (MSE) walls restrain hillslopes to unnatural gradients using reinforced soil. Traditional MSE walls are constructed of large reinforced concrete panels bolted to steel strips for soil reinforcement. Segmented Retaining Walls (SRWs) are a form of MSE walls composed of precast concrete modular blocks that incorporate geosynthetic soil reinforcement. In comparison, traditional MSE walls have faster construction times and are typically stronger, but SRWs have increased in popularity because they are much cheaper to build.

There are many precast companies that produce different SRW block designs, these blocks have facing areas that range from 1 to 13.75 sq. …

Design For Reduction Of Noise Produced By Natural Gas Regulator, Britany L. Chamberlain

Undergraduate Honors Capstone Projects

This document describes the design of a multi-stage restrictive orifice device (MSRO) that serves to reduce the noise produced by a regulator valve. The scope of this document explains the determination of the proper design through the development of analytical models, the design of a test fixture to obtain empirical data, and the corroboration of the models with empirical data to obtain a working solution.

Long-Term Winter Inversion Properties In A Mountain Valley Of The Western United States And Implications On Air Quality, Shih-Yu (Simon) Wang, Lawrence E. Hipps, Oi-Yu Chung, Robert R. Gillies, Randy S. Martin

Civil and Environmental Engineering Faculty Publications

Because of the geography of a narrow valley and surrounding tall mountains, Cache Valley (located in northern Utah and southern Idaho) experiences frequent shallow temperature inversions that are both intense and persistent. Such temperature inversions have resulted in the worst air quality in the nation. In this paper, the historical properties of Cache Valley’s winter inversions are examined by using two meteorological stations with a difference in elevation of approximately 100 m and a horizontal distance apart of ~4.5 km. Differences in daily maximum air temperature between two stations were used to define the frequency and intensity of inversions. Despite …

Lightweight Deployment Mechanism Of Solar Arrays For Use In Cubesats, John Wood Ellis

Undergraduate Honors Capstone Projects

Cube satellites, also referred to as CubeSats, were developed in the late twentieth century, and have since served as a cost-effective method of gathering out-of-this-world data. The development of these small-scale satellites have helped universities and small companies worldwide to perform important experiments, as well as gather critical data in order to provide for further space exploration. Cube satellites are designed to be self-sustaining, by using solar cells to capture impinging thermal energy and convert it to power to be consumed by the electronics housed within the satellite itself. In order to function properly, these cells are extended in an …

Development And Evaluation Of A Physically Based Multiscalar Drought Index: The Standardized Moisture Anomaly Index, B. Zhang, X. Zhao, Jiming Jin, P. Wu

Civil and Environmental Engineering Faculty Publications

In this study, a new physically based multiscalar drought index, the Standardized Moisture Anomaly Index (SZI), was developed and evaluated, which combines the advantages of the Palmer Drought Severity Index (PDSI) and the Standardized Precipitation Evapotranspiration Index (SPEI). The SZI is based on the water budget simulations produced with a sophisticated hydrological model, and it also includes a multiscalar feature to quantify drought events at different temporal scales taken from SPEI. The Chinese Loess Plateau was selected to evaluate the performance of the SZI. Our evaluation indicates that the SZI accurately captures the onset, duration, and ending of a multiyear …

Master's Thesis Defense By Elizabeth Martinez | Biological Engineering, Usu College Of Engineering

College of Engineering News

The Logan Lagoons, Logan City’s Wastewater Treatment Facility ensures 15 million gallons of wastewater are cleaned and filtered each day. With the implementation of new and stricter wastewater effluent standards, the city of Logan now has to guarantee the phosphorous concentration in the effluent is also reduced. Algal biomass produced and harvested from the lagoons has been proven to affect the way nitrogen and phosphorous are removed while having the potential to be converted to biofuels. Therefore, implementing a secondary type clarifier in the Logan Lagoons would produce clean treated water with a reduced phosphorous concentration, and algae feedstock for …

Software-And Hardware-In-The-Loop Verification Of Flight Dynamics Model And Flight Control Simulation Of A Fixed-Wing Unmanned Aerial Vehicle, Calvin Coopmans, Michal Podhradsk, Nathan V. Hoffer

Mechanical and Aerospace Engineering Faculty Publications

Unmanned aerial system (UAS) use is ever-increasing. In this paper, it is shown that even with low-cost hardware and open-source software, simple numerical testing practices (software- and hardware-in-the-loop) can prove the accuracy and usefulness of an aeronautical flight model, as well as provide valuable pre-flight testing of many situations typically only encountered in flight: high winds, hardware failure, etc. Software and hardware simulation results are compared with actual flight testing results to show that these modeling and testing techniques are accurate and provide a useful testing platform for a small unmanned aerial vehicle. Source code used in simulation is open …

2015 Graduate Researcher Of The Year Award | Biological Engineering, Usu College Of Engineering

College of Engineering News

Lifu Xiao received a B.S. degree in Chemistry from Fudan University in China, 2011. He has been pursuing a Ph.D. degree in Biological Engineering since 2011 at Utah State University under the supervision of Dr. Anhong Zhou. He obtained a multidisciplinary background in chemistry, biology and engineering working in Dr. Zhou’s lab. His research focuses on developing new methods for sensing and imaging of human disease-related biomolecules and mammalian cells.

Lifu has published five papers in peer reviewed journals. One of his papers, published in Analytical Methods, was ranked as one of the top ten most accessed articles in Feb …

Meet Micro Joe | College Of Engineering, Usu College Of Engineering

College of Engineering News

Hydrazine is an unstable, flammable liquid that has been used as a propellant in small spacecraft for decades. But the cost of this unique fuel, its transport, storage, servicing and cleanup of accidental releases can be very high, making it difficult for the commercial space industry to expand.

How Plants Can Make Stormwater Cleaner | College Of Engineering, Usu College Of Engineering

College of Engineering News

Ever wondered what happens to the surge of stormwater you see racing down your street?

Teaching Computers To See Like We Do | College Of Engineering, Usu College Of Engineering

College of Engineering News

Nov. 18, 2015 – Recognizing patterns might be easy for some people, but it’s a difficult skill to teach to a computer. Ask Dr. Xiaojun Qi, a faculty member in USU’s Computer Science Department, who was recently promoted to professor for her innovative research in image processing and computer vision.

Wideband Fluorescence-Based Thermometry By Neural Network Recognition: Photothermal Application With 10 Ns Time Resolution, Liwang Liu, Kuo Zhong, Troy Munro, Salvador Alvarado, Renaud Cote, Sebastiaan Creten, Eduard Fron, Heng Ban, Mark Van Der Auweraer, N. B. Roozen, Osamu Matsuda, Christ Glorieux

Mechanical and Aerospace Engineering Faculty Publications

Neural network recognition of features of the fluorescence spectrum of a thermosensitive probe is exploited in order to achieve fluorescence-based thermometry with an accuracy of 200 mK with 100 MHz bandwidth, and with high robustness against fluctuations of the probe laser intensity used. The concept is implemented on a rhodamine B dyed mixture of copper chloride and glycerol, and the temperature dependent fluorescence is investigated in the temperature range between 234 K and 311 K. The spatial dependence of the calibrated amplitude and phase of photothermally induced temperature oscillations along the axis of the excitation laser are determined at different …

Practitioner Interview, Jayantha Obeysekera

All ECSTATIC Materials

Phone interview with Jayantha Obeysekera from South Florida Water Management District by David Watkins, Jr., and Ali Mirchi. Interview questions asked inquired about (i) practitioner’s professional background, (ii) practitioner’s personal experience with systems analysis techniques and software in their job, (iii) role, benefits, and challenges in using systems analysis concepts in the water resources engineering profession, and (iv) recommendations for improving education of environmental and water resources systems analysis in universities.

Dr. Allan Guymon Undergraduate Seminar | Biological Engineering, Usu College Of Engineering

College of Engineering News

Photopolymerization has taken an increasing prominent role as a tool in providing unique properties for a wide array of advanced materials. The inherent spatial and temporal control allow great ability to tailor processing conditions and change ultimate properties. This talk will focus on two projects, including work from two Utah State alumni, in which photopolymerization enables directed structure both on the micron and nanometer size scale for unique functionality.

Vision: An Engineer's Tool In The Fight Against Eye Disease | College Of Engineering, Usu College Of Engineering

College of Engineering News

If you’ve seen the latest news headlines about Dr. Elizabeth Vargis, you’d think she was an ophthalmologist – a medical expert on vision-related disease and treatment. But Vargis is no physician. She’s an engineer – pure and simple.