Engineering Commons^™

Yig: Bi2o3 Nanocomposite Thin Films For Magnetooptic And Microwave Applications, M Nur-E-Alam, Mikhail Vasiliev, Kamal Alameh, Viacheslav Kotov, Victor Demidov, Dmitry Balabanov

Research outputs 2014 to 2021

Y₃Fe₅O₁₂-Bi₂O₃ composite thin films are deposited onto Gd₃Ga₅O₁₂ (GGG) substrates and their annealing crystallization regimes are optimized (in terms of both process temperatures and durations) to obtain high-quality thin film layers possessing magnetic properties attractive for a range of technological applications. The amount of bismuth oxide content introduced into these nanocomposite-type films is controlled by adjusting the RF power densities applied to both Y₃Fe₅O₁₂ and Bi₂O₃ sputtering targets during the cosputtering deposition processes. The measured material properties of …

Interlocking Concrete Masonry Unit Geometry Design, Raquel Avila, Nick Jensen

Civil, Environmental and Sustainable Engineering Senior Theses

Earthquakes in Haiti and Nepal left many people devastated. Millions of people were initially displaced and forced to reside in displacement camps. Developing countries like these need a form of economical construction. Our design and manufacturing process for interlocking CMU (concrete masonry unit) blocks can help build low-cost homes quickly and efficiently. Wall construction costs are reduced because skilled masons are not needed to build the wall. Instead, unskilled homeowners and laborers can stack the interlocking blocks, which serve as forms for the subsequent placement of reinforcement and grout within some of the CMU block voids. Using a steel mold, …

Spatial Analysis Of Mount St. Helens Tephra Leachate Compositions: Implications For Future Sampling Strategies, P. M. Ayris, P. Delmelle, B. Pereira, E. C. Maters, D. E. Damby, A. J. Durant, D. B. Dingwell

Michigan Tech Publications, Part 1

Tephra particles in physically and chemically evolving volcanic plumes and clouds carry soluble sulphate and halide salts to the Earth’s surface, ultimately depositing volcanogenic compounds into terrestrial or aquatic environments. Upon leaching of tephra in water, these salts dissolve rapidly. Previous studies have investigated the spatial and temporal variability of tephra leachate compositions during an eruption in order to gain insight into the mechanisms of gas-tephra interaction which emplace those salts. However, the leachate datasets analysed are typically small and may poorly represent the natural variability and complexity of tephra deposits. Here, we have conducted a retrospective analysis of published …

High Resolution Doppler Collision Avoidance Radar, Jae Seung Lee, Paul Donald Schmalenberg, Nikola Steven Subotic, James Paul Ebling

Michigan Tech Patents

An example radar apparatus has a transmission frequency modulated by a chirp waveform having three chirp segments, including increasing, decreasing, and a constant frequency segments. The chirp waveform may extend over the full revisit time of the radar beam. The frequency difference between the transmitted and echo signals are determined at least once per chirp segment. Example apparatus include a Doppler radar for vehicle use.

Understanding The Communicative And Social Processes Of Engineering Ethics In Diverse Design Teams, Carla B Zoltowski, Patrice Buzzanell, William Charles Oakes, Megan Feister, David Torres

School of Engineering Education Faculty Publications

Understanding the Communicative and Social Processes of Engineering Ethics in Diverse Design Teams As engineering, and specifically engineering design, is increasingly understood to be asocial activity, engineering education’s understanding of ethics needs to reflect this developingawareness. Within engineering and design teams, engineering educators are concerned not onlywith how individual students develop ethically, but also how everyday ethical decision-makingemerges during team interactions and becomes integrated in design solutions. The everydayethics approach calls on engineering educators and students to pay closer attention to the natureof design, how values are embedded in design through micro decision-making processes, andhow these values are reintegrated into …

Slides: Wrapping Up The Big Horn Adjudication: Lessons After 38 Years And 20,000 Claims, Ramsey L. Kropf

Innovations in Managing Western Water: New Approaches for Balancing Environmental, Social and Economic Outcomes (Martz Summer Conference, June 11-12)

Presenter: Ramsey L. Kropf, Deputy Solicitor for Water Resources, Office of the Solicitor, U.S. Department of the Interior

34 slides

Cooperative 3-D Map Generation Using Multiple Uavs, Andrew Erik Lawson

University Scholar Projects

This report aims to demonstrate the feasibility of building a global 3-D map from multiple UAV robots in a GPS-denied, indoor environment. Presented are the design of each robot and the reasoning behind choosing its hardware and software components, the process in which a single robot obtains a individual 3-D map entirely onboard, and lastly how the mapping concept is extended to multiple robotic agents to form a global 3-D map using a centralized server. In the latter section, this report focuses on two algorithms, Online Mapping and Map Fusion, developed to facilitate the cooperative approach. A limited selection …

Device, Method, And Algorithm To Assess Changes In Cardiac Output Via Intracardiac Impedance Monitoring, Geoffrey Fredrick Schau

Dissertations and Theses

Cardiac output, the volume of blood pumped by the heart over time, is a powerful clinical metric used by physicians to assess overall cardiac health and patient well-being. However, current cardiac output estimation methods are typically invasive, time-consuming, expensive, or some combination of all three. Patients that receive artificial cardiac pacemaker devices are particularly susceptible to cardiac dysfunction and often require long-term cardiac monitoring support.

This thesis proposes a novel cardiac output monitoring solution which leverages an implantable intracardiac medical device. The principles of traditional impedance cardiography, an established cardiac output monitoring technique in practice for over fifty years, have …

Tuning And Measuring Trap Shape For Cold Atom Sensors, James A. Stickney

Space Dynamics Laboratory Publications

Table of Contents

1. Tuneable atom chip
2. Cloud sloshing in a weakly non-harmonic trap
3. Data

Curved-Folding-Inspired Deployable Compliant Rolling-Contact Element (D-Core), Todd Nelson, Robert Lang, Spencer P. Magleby, Larry L. Howell

Faculty Publications

This work describes a deployable compliant rolling-contact element joint (DCORE joint) that employs curved-folding origami techniques to enable transition from a flat to deployed state. These deployable joints can be manufactured from a single sheet of material. Two fundamental configurations of the D-CORE are presented. The first configuration allows for motion similar to that of a Jacob’s ladder when the joint is in a planar state while achieving the motion of a CORE when in the deployed state. The second configuration constrains all degrees of freedom to create a static structure when the joint is in the planar state and …

Direct Structure Estimation For 3d Reconstruction, Nianjuan Jiang, Wen-Yan Lin, Minh N. Do, Jiangbo Lu

Research Collection School Of Computing and Information Systems

Most conventional structure-from-motion (SFM) techniques require camera pose estimation before computing any scene structure. In this work we show that when combined with single/multiple homography estimation, the general Euclidean rigidity constraint provides a simple formulation for scene structure recovery without explicit camera pose computation. This direct structure estimation (DSE) opens a new way to design a SFM system that reverses the order of structure and motion estimation. We show that this alternative approach works well for recovering scene structure and camera poses from sideway motion given planar or general man-made scenes.

Ikure Health Worker Tracker, Daniel Mendoza, Astha Singh, Mason Maeshiro

Computer Science and Engineering Senior Theses

For our Senior Design Project, we worked with a company in India called iKure. This company is a social benefits entrepreneurship that strives to provide affordable healthcare to citizens in rural India. In order to run their operations more efficiently, iKure asked us to create an application to track the location of their health workers as they travel throughout the rural communities. We worked closely with one of the employees at iKure, meeting biweekly through conference calls, in order to keep up to date on the companys developments. After careful consideration and additional feedback from iKure, we came up with …

Beacon Pack, Aidan Barbari, James Mack, James Terry

Computer Science and Engineering Senior Theses

STEM technologies have the ability to spread information to those corners of the world where Internet access has yet to reach. However, there are very few technologies that can bring this necessity to developing countries, most of which do not have the capital to pursue these technologies. In this paper, we discuss Beacon Pack, a solar powered database in a travelers pack that can bring information acquired from the Internet to these individuals in developing countries with low-level cellular phones or "feature phones." Our product tackles this issue of providing this info, specifically news articles, to developing countries through an …

Slides: Food Production: Technical Challenges In Agricultural Water Conservation, Perry Cabot

Innovations in Managing Western Water: New Approaches for Balancing Environmental, Social and Economic Outcomes (Martz Summer Conference, June 11-12)

Presenter: Dr. Perry Cabot, Research Scientist and Extension Specialist, Colorado Water Institute, Colorado State University

35 slides

Agenda: Innovations In Managing Western Water: New Approaches For Balancing Environmental, Social, And Economic Outcomes, University Of Colorado Boulder. Getches-Wilkinson Center For Natural Resources, Energy, And The Environment

Innovations in Managing Western Water: New Approaches for Balancing Environmental, Social and Economic Outcomes (Martz Summer Conference, June 11-12)

Many aspects of western water allocation and management are the product of independent and uncoordinated actions, several occurring a century or more ago. However, in this modern era of water scarcity, it is increasingly acknowledged that more coordinated and deliberate decision-making is necessary for effectively balancing environmental, social, and economic objectives. In recent years, a variety of forums, processes, and tools have emerged to better manage the connections between regions, sectors, and publics linked by shared water systems. In this event, we explore the cutting edge efforts, the latest points of contention, and the opportunities for further progress.

Slides: Moffat Collection System Project, Travis Bray

Innovations in Managing Western Water: New Approaches for Balancing Environmental, Social and Economic Outcomes (Martz Summer Conference, June 11-12)

Presenter: Travis Bray, Project Manager, Moffat Collection System Project, Denver Water

45 slides

Slides: Ag Water Sharing: Legal Challenges And Considerations, Peter D. Nichols

Innovations in Managing Western Water: New Approaches for Balancing Environmental, Social and Economic Outcomes (Martz Summer Conference, June 11-12)

Presenter: Peter D. Nichols, Esq., Partner, Berg, Hill, Greenleaf and Ruscitti, Boulder, CO

25 slides

Bannan Pedestrian Bridge, Chris Banaga, Kevin Delos Santos, Tim Mort

Civil, Environmental and Sustainable Engineering Senior Theses

This project focuses on the need for collaboration and unification among faculty and students in the engineering department. As it stands, the engineering department has three buildings that are not connected. This causes students and faculty of different studies to be handcuffed. Engineering is a collaborated field, that requires like minded people to come up with solutions. This is why the design team decided to implement a pedestrian bridge that would allow rapid access to both engineering buildings. The project team completed structural and construction elements for a pedestrian bridge that connects two buildings in the SCU engineering quad. This …

Santa Clara University Multicultural Center Redesign, Angela Non, Isaac Raven

Civil, Environmental and Sustainable Engineering Senior Theses

The purpose of this project is to propose a resigned structure to better suit the activities of the Santa Clara University Multicultural Center. The renovation entails proposing a preliminary structural design system that includes a new, light-weight PLN3 metal deck roofing system provided by Verco Decking, Inc. Nine deep long span 56DLH truss joists will be implemented to support the metal deck. Two large trusses comprised of member sizes HSS9x9x½ and LL3½x3½x5/16x3/8 will be used to support the nine truss joists. Four concrete columns, 15 ft in height and 2 ft in diameter, will be erected to uphold each end …

Minimizing Average Handling Time In Contact Centers By Introducing A New Process: Rowan Support Desk Case Study, Niusha Jafari

Theses and Dissertations

Quality of a call center performance is an important factor in insuring customer satisfaction. Customers, the "callers", want their requests solved quickly, permanently and to their satisfaction. Often, there are staff constraints, budget or cost limitation, and the Service Level Agreement (SLA) which is resource availability to accomplish a task within a deadline. The purpose of this research is to analyze feasible approaches to minimize the long-lasting open requests and enhance a call center's performance. Multiple challenges that a call center often faces in handling requests are studied to identify key bottlenecks in the process of handling requests. Rowan University …

Skyport: Payload: Medical Cooler For The Skyport Uav, Madison Gee, Hector Lopez, Victor Magaña

Mechanical Engineering Senior Theses

Access to basic healthcare is a major persisting problem around the globe, especially in rural parts of the world. One of the many facets of this problem is access to vaccine treatment. The transportation and storage of vaccines at the proper temperature is an issue that is still being solved and improved upon today. One of the common solutions to this problem is the use of passive coolers such as ice packs and other refrigerants. The potential issue with passive cooling is that the temperature cannot be actively controlled. This is evident, as many vaccines are wasted due to incorrect …

Morphology And Magnetic Properties Of Sulfonated Poly[Styrene-(Ethylene/Butylene)-Styrene]/Iron Oxide Composites, Sateesh K. Peddini, Huy N. Pham, Leonard Spinu, James L. Weston, David E. Nikles, Kenneth A. Mauritz

Faculty Publications

α-Fe₂O₃ structures were initiated in the sulfonated polystyrene block domains of poly[styrene–(ethylene/butylene)–styrene] (SEBS) block copolymers via a domain-targeted in-situ chemical precipitation method. The crystal structure of these particles was determined using wide-angle X-ray diffraction and selected area electron diffraction using a transmission electron microscope (TEM). TEM revealed that for less sulfonated SEBS (10 mole%), nanoparticles were aggregated with aggregate size range of 100–150 nm whereas for high sulfonation (16 and 20 mole% sSEBS) there were needle-like structures with length and width of 200–250 nm and 50 nm, respectively. Dynamic mechanical analyses suggest that initial iron oxide nanoparticle …

Advances In Catalyst Deactivation And Regeneration, Calvin H. Bartholomew, Morris D. Argyle

Faculty Publications

Catalyst deactivation, the loss over time of catalytic activity and/or selectivity, is a problem of great and continuing concern in the practice of industrial catalytic processes. Costs to industry for catalyst replacement and process shutdown total tens of billions of dollars per year. While catalyst deactivation is inevitable for most processes, some of its immediate, drastic consequences may be avoided, postponed, or even reversed through regeneration.

Preliminary Design And Construction Planning Of A New Santa Clara University Student Fitness And Recreational Facility, Justin Matoi, Steven Sakamoto, Alex Sarr

Civil, Environmental and Sustainable Engineering Senior Theses

The Pat Malley Fitness and Recreation Center was built in 1999. At approximately 45,000 SF, the building cost was 8.8 million dollars. Malley includes three full length basketball courts, locker rooms, 10,000 ft2 workout and cardio space, a multi-purpose room and administrative offices ("Santa Clara University" Campus Recreation). Although one of the relatively new buildings on campus; Malley fails to provide the necessary space and accommodations of an active and growing student body. When the building was designed and built, the student population/enrollment of the University was "approximately 4,200 undergraduate and 3,600 graduate students" (Santa Clara University Bulletin 1999). Since …

Sustainable Design In Ghana, Anthony Decosta, Amanda Laufer, Theresa Mcardle

Civil, Environmental and Sustainable Engineering Senior Theses

Sustainable homes are difficult for the people of Gambibgo, Ghana to build, as there are few natural building materials in the area other than earth and water, and their subsistencefarming lifestyle leaves very little money for the purchase of sourced material like lumber, steel, or cement. Traditional homes in Gambibgo are constantly rebuilt, costing the communityaround $250 at least once every five years. Our team, with Father James Reites, S.J. and two alums, traveled to Gambibgo in March 2015 with an earthen roof design we had hoped to implement on the existing walls of thecommunity's homes. Upon our arrival we …

Geomorphic Restoration And Stabilization Of A Reach Of Stevens Creek, Gretchen Kayser, Nick Roby, Travis Giffen

Civil, Environmental and Sustainable Engineering Senior Theses

This project focuses on the restoration of a 460-foot reach of Stevens Creek in Santa Clara County, California. The new design will increase the stability of stream channels, riparian system functions, and fish passage while improving or maintaining the "level of service" based on geomorphic data. This project was completed in conjunction with the Santa Clara Valley Water District's standards and design criteria. The proposed design is needed to increase the stability of stream banks and rectify stream bed incision. This will, in turn, provide greater flood protection to the residents of Santa Clara County. In addition to safety for …

Spectrally-Resolved Imaging Of The Transverse Modes In Multimode Vcsels, Stephan A. Misak, Dan G. Dugmore, Kirsten A. Middleton, Evan R. Hale, Kelly R. Farner, Kent D. Choquette, Paul O. Leisher

Rose-Hulman Undergraduate Research Publications

Vertical-cavity surface-emitting lasers (VCSELs) enable a range of applications such as data transmission, trace sensing, atomic clocks, and optical mice. For many of these applications, the output power and beam quality are both critical (i.e. high output power with good beam quality is desired). Multi-mode VCSELs offer much higher power than single-mode devices, but this comes at the expense of lower beam quality. Directly observing the resolved mode structure of multi-mode VCSELs would enable engineers to better understand the underlying physics and help them to develop multi-mode devices with improved beam quality. In this work, a low-cost, high-resolution (<3 >pm) …

Automated In-Row Weed Trimmer, Joshua Baculi, Tyler Castrucci, Joshua Ding, Marit Knapp, Gaston Young

Mechanical Engineering Senior Theses

The Automated In-Row Weed Trimmer, or AIRWT, is a weed removal system designed to be used in vineyards in order to enable safe and e cient removal of weeds while preventing damage to the vines. The goal of the system is to reduce the need for the use of manual labor and herbicides while improving production rates of grapes by automating the weed removal process at vineyards. By implementing an automated system for weed removal, the team aims to resolve ethical issues in food production, primarily those surrounding human labor, environmental friendliness, and social sustainability. The focus of this report …

Department Of Energy Announces $18m To Accelerate Ev Development | Utah State University Power Electronics Lab, Usu College Of Engineering

College of Engineering News

The Department of Energy announced $18M to accelerate development of plug-in electric vehicles (PEVs) and alternative fuels. The funds will be distributed between five different projects across the nation, including $3.9M to PacifiCorp/Rocky Mountain Power. The project will establish an interstate PEV charging network of over 1,500 miles across Utah, Idaho, and Wyoming through installation, operation, and data collection. Target goals include deployment of #200 PEVs to fleet deployment partners, along with #13,000 PEV rentals to be used through on demand rental programs.

Learning To Learn: Embedding Peer Support As A Core Learning Skill At Third Level, Gerard Ryder, Philip Russell

Support services (Former ITT) - Conference Papers

This paper presents an overview of the Peer Learning Support Programme which has been developed by Mechanical Engineering staff and librarians at the Institute of Technology Tallaght in support of the Institute's Learning to Learn at Third Level module.