Engineering Commons^™

Design And Construction Of A Bi-Propellant Liquid Rocket, Kaitlin Russell, Mckynzie Perry, Erik Korzon, Rilee Kaliher, Grant Elliott, Claire Daly

Von Braun Symposium Student Posters

No abstract provided.

Grid-Based Rfid Indoor Localization Using Tag Read Count And Received Signal Strength Measurements, Nanda Gopal Jeevarathnam

USF Tampa Graduate Theses and Dissertations

Passive ultra-high frequency (UHF) radio frequency identification (RFID) systems have gained immense popularity in recent years for their wide-scale industrial applications in inventory tracking and management. In this study, we explore the potential of passive RFID systems for indoor localization by developing a grid-based experimental framework using two standard and easily measurable performance metrics: received signal strength indicator (RSSI) and tag read count (TRC). We create scenarios imitating real life challenges such as placing metal objects and other RFID tags in two different read fields (symmetric and asymmetric) to analyze their impacts on location accuracy. We study the prediction potential …

Development Of 3-Axis Control System For 3u Cubesat, Tyler Sholes, Dean Alhorn, Chandler Ellis, William Hankins, Ian Hines

Von Braun Symposium Student Posters

No abstract provided.

Analytical Modeling Of Radiation Attenuation And Heat Deposition In Propellant For Nuclear Thermal Rockets, Alexander Aueron

Von Braun Symposium Student Posters

No abstract provided.

Adaptation Of Legacy Computer Science Complexity Metrics To Sysml Diagrams, Victor Lopez

Von Braun Symposium Student Posters

No abstract provided.

Expendable Rs-25 Engine Affordability Study, Adam Bower, Dale Thomas

Von Braun Symposium Student Posters

No abstract provided.

Miniaturizing Ion Thruster Using Split Ring Resonator (Srr), Toyofumi Yamauchi, Gabriel Xu

Von Braun Symposium Student Posters

No abstract provided.

Overview Of The Saber Mission And Launch Vehicle Design, Benjamin Thompson, Jared Fuchs, Oakley Copeland, Aaron Hunt, Matthew Haskell, William Hankins, Logan Anderson

Von Braun Symposium Student Posters

No abstract provided.

Where Mbse And Plm Fit Into The Digital Thread, Zach Thomas

Von Braun Symposium Student Posters

No abstract provided.

Asymptotic Neutronic Solutions For Fast Burst Reactor Design, Edward L. Hobbs

Nuclear Engineering ETDs

Deterministic numerical methodologies for solving time-eigenvalue problems are valuable in characterizing the inherent rapid transient neutron behavior of a Fast Burst Reactor (FBR). New nonlinear solution techniques used to solve eigenvalue problems show great promise in modeling the neutronics of reactors. This research utilizes nonlinear solution techniques to solve for the dominant time-eigenvalue associated with the asymptotic (exponential) solution to the neutron diffusion and even-parity form of the neutron transport equation, and lays the foundation for coupling with other physics phenomena associated with FBRs.

High security costs and proliferation risks associated with Highly Enriched Uranium (HEU) fueled FBRs are the …

Sustainability Of Community-Managed Rural Water Supply Systems In Amazonas, Peru: Assessing Monitoring Tools And External Support Provision, Jacob E. Mangum

USF Tampa Graduate Theses and Dissertations

Globally, there is still a large number of people without access to safe drinking water; a known health risk. In rural areas of countries like Peru, when potable water systems are built the responsibility for maintaining these systems is given to volunteer water committees. Despite its prevalence as a management model, there is a consensus that community management alone cannot ensure sustainable water service. Therefore, the overall goal of this research is to assess the sustainability of community-managed water systems in rural areas of the department of Amazonas, Peru. Specifically, this research examines two mechanisms that have been shown to …

A Drier South: Europe’S Drought Trends Match Climate Change Projections | College Of Engineering, Usu College Of Engineering

College of Engineering News

On the same day that global leaders wrapped up an international water and climate summit in Rome, researchers published new findings that suggest European drought trends are lining up with climate change projections.

Ga And In Modified Ceria As A Support For Cobalt Fischer-Tropsch Synthesis, Muthu Kumaran Gnanamani, Gary Jacobs, Wilson D. Shafer, Michela Martinelli, Donald C. Cronauer, A. Jeremy Kropf, Christopher L. Marshall, Burtron H. Davis

Center for Applied Energy Research Faculty and Staff Publications

Ceria modified by the addition of gallium or indium (20 mol%) was used as a support for cobalt Fischer-Tropsch synthesis. The addition of gallium to ceria improved the CO conversion for cobalt, whereas indium tended to decrease it. A similar trend was observed with the Ag-promoted cobalt/ceria catalysts that were doped with Ga or In. For Ag promoted catalysts, doping with Ga or In decreased methane and increased the product selectivities of olefins and alcohols. The sum of olefins and alcohols in terms of product selectivity for the Ag-promoted catalysts decreased in the following order: Ag-Co/Ce-Ga > Ag-Co/Ce-In > Ag-Co/Ce. The H2-TPR-XANES …

Underwater Object Tracking Strategy Via Multi-Scale Retinex And Partial Least Squares Analysis, Baochen Hao, Yue Zhu, Ruijie Chang, Rui Nian, Bo He, Lujie Cao, Amaury Lendasse

Engineering Management and Systems Engineering Faculty Research & Creative Works

Underwater Object Tracking is One of the Most Essential and Fundamental Tasks in Ocean Investigations Recent Years. in This Paper, We Try to Capture Multi-Scale Retinex (MSR) Model as Well as the Partial Least Square (Pls) Analysis for Underwater Object Tracking. We First Make Use of Multi-Scale Retinex Model to Evolve and Enhance the Partial Color Constancy from the Underwater Video Sequences, Which Could Provide a Versatile Automatic Strategy to Simultaneous Sharpening, Dynamic Range Compression and Color Rendition. the Partial Least Square Analysis is Further Taken to Capture the Trajectories of Underwater Objects by Learning a Set of Underwater Appearance …

Pattern Discovery In Brain Imaging Genetics Via Scca Modeling With A Generic Non-Convex Penalty, Lei Du, Kefei Liu, Xiaohui Yao, Jingwen Yan, Shannon L. Risacher, Junwei Han, Lei Guo, Andrew J. Saykin, Li Shen, Michael W. Weiner, Paul Aisen, Ronald Petersen, Clifford R. Jack, William Jagust, John Q. Trojanowki, Arthur W. Toga, Laurel Beckett, Robert C. Green, John Morris, Leslie M. Shaw, Zaven Khachaturian, Greg Sorensen, Maria Carrillo, Lew Kuller, Marc Raichle, Steven Paul, Peter Davies, Howard Fillit, Franz Hefti, David Holtzman, Charles D. Smith, Gregory Jicha, Peter A. Hardy, Partha Sinha, Elizabeth Oates, Gary Conrad

Neurology Faculty Publications

Brain imaging genetics intends to uncover associations between genetic markers and neuroimaging quantitative traits. Sparse canonical correlation analysis (SCCA) can discover bi-multivariate associations and select relevant features, and is becoming popular in imaging genetic studies. The L1-norm function is not only convex, but also singular at the origin, which is a necessary condition for sparsity. Thus most SCCA methods impose ℓ₁-norm onto the individual feature or the structure level of features to pursuit corresponding sparsity. However, the ℓ₁-norm penalty over-penalizes large coefficients and may incurs estimation bias. A number of non-convex penalties are proposed to reduce …

Underwater Image Super-Resolution Reconstruction With Local Self-Similarity Analysis And Wavelet Decomposition, Xiaorun Wang, Rui Nian, Bo He, Bing Zheng, Amaury Lendasse

Engineering Management and Systems Engineering Faculty Research & Creative Works

Underwater Target Detecting is an Important Technique for the Development of the Ocean Engineering and Exploration Also a Significant Task of the Ocean Detecting. It Plays a Substantial Role Not Only for the Civil Economy but Also for the National Security. the Formation of the Super-Resolution Underwater Image is Significant Topic in Ocean Detecting Field. in Order to Enhance the Visual Quality of Images Obtained by Underwater Imaging Systems, Super Resolution (Sr) Reconstruction is Introduced, Including Single-Frame and Multi-Frame Sr Algorithms. Real-World Images Often Contain Singularities Such as Edges and High-Frequency Textured Regions. as a Result, These Methods Suffer from …

Underwater Image Segmentation With Co-Saliency Detection And Local Statistical Active Contour Model, Yue Zhu, Baochen Hao, Baohua Jiang, Rui Nian, Bo He, Xinmin Ren, Amaury Lendasse

Engineering Management and Systems Engineering Faculty Research & Creative Works

Image Segmentation of Underwater Environment with Inhomogeneous Intensity Turns Out to Be One of the Most Challenging Topics These Years. in This Paper, We Try to Combine Co-Saliency Detection with Local Statistical Active Contour Model Together for Underwater Image Segmentation. the Cluster-Based Algorithm is First Taken for Co-Saliency Detection, Which Makes Salient Region in the Underwater Images Be Highlighted. the Local Statistical Active Contour Model, a Novel Region-Based Level Set Method, is Then Made Full Use of two Segment Underwater Images. It is Shown in Our Simulation Experiment that Our Proposed Scheme Could Achieve Great Segmentation Performance in Both Efficiency …

A Depth Estimation Model From A Single Underwater Image With Non-Uniform Illumination Correction, Shichang Zhang, Xiaofei Gong, Rui Nian, Bo He, Yaomin Wang, Amaury Lendasse

Engineering Management and Systems Engineering Faculty Research & Creative Works

Underwater Visual Understanding Tends to Be One of the Most Important Challenges in Ocean Investigations Recent Years. in This Paper, We Make an Attempt to Develop a Depth Estimation Approach from One Single Underwater Image with Non-Uniform Illumination Correction. First, We Try to Remove the Relatively Strong Reflection Layer from the Scene Layer in Those Underwater Images with Non-Uniform Illumination and Rely on the Saturation Detection to Characterize the Local Regions of the Artificial Illumination in Underwater Images for Compensation in Depth Estimation. Then We Try to Implement Underwater Dark Channel Prior and Basically Consider the Blue and Green Color …

Spatial And Temporal Variation In Precipitation In Togo, Koffi Djaman, Vivek Sharma, Daran Rudnick, Komlan Koudahe, Suat Irkmak, Kokou Adambounou Amouzou, Jean Mianikpo Sogbedji

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Precipitation is one of the important variables in hydrological cycle and has important application in both irrigated and rainfed agricultural crop production. Better understanding of spatio-temporal variability of precipitation across Togo is important and useful for water users and most agricultural activities. Thus, the objective this study was to analyze the spatial and temporal variation in monthly and annual precipitation across Togo for the period of 1961-2001. Monthly precipitation data was provided by the national direction of meteorology. The performed analysis revealed a decline in annual total precipitation across almost all agro-ecological zones in Togo with the Maritime Region revealed …

Observed Drought Indices Show Increasing Divergence Across Europe, James H. Stagge, Daniel G. Kingston, Lena M. Tallaksen, David M. Hannah

Civil and Environmental Engineering Faculty Publications

Recent severe European droughts raise the vital question: are we already experiencing measurable changes in drought likelihood that agree with climate change projections? The plethora of drought definitions compounds this question, requiring instead that we ask: how have various types of drought changed, how do these changes compare with climate projections, and what are the causes of observed differences? To our knowledge, this study is the first to reveal a regional divergence in drought likelihood as measured by the two most prominent meteorological drought indices: the Standardized Precipitation Index (SPI) and the Standardized Precipitation-Evapotranspiration Index (SPEI) across Europe over the …

Responsive Nanogel Probe For Ratiometric Fluorescent Sensing Of Ph And Strain In Hydrogels, Mingning Zhu, Dongdong Lu, Shanglin Wu, Qing Lian, Wenkai Wang, Amir H. Milani, Zhengxing Cui, Nam T. Nguyen, Mu Chen, L. Andrew Lyon, Daman J. Adlam, Anthony J. Freemont, Judith A. Hoyland, Brian R. Saunders

Engineering Faculty Articles and Research

In this study a new pH-responsive nanogel probe containing a complementary nonradiative resonance energy transfer (NRET) fluorophore pair is investigated and its ability to act as a versatile probe of network-related changes in three hydrogels demonstrated. Fluorescent sensing using NRET is a powerful method for studying relationships between Angstrom length-scale structure and macroscopic properties of soft matter. Unfortunately, inclusion of NRET fluorophores into such materials requires material-specific chemistry. Here, low concentrations of preformed nanogel probes were included into hydrogel hosts. Ratiometric photoluminescence (PL) data for the gels labeled with the nanogel probes enabled pH-triggered swelling and deswelling to be studied …

Evaluation Of Five Dry Particle Deposition Parameterizations For Incorporation Into Atmospheric Transport Models, Tanvir Khan, Judith Perlinger

Michigan Tech Publications, Part 1

Despite considerable effort to develop mechanistic dry particle deposition parameterizations for atmospheric transport models, current knowledge has been inadequate to propose quantitative measures of the relative performance of available parameterizations. In this study, we evaluated the performance of five dry particle deposition parameterizations developed by Zhang et al. (2001) ("Z01"), Petroff and Zhang (2010) ("PZ10"), Kouznetsov and Sofiev (2012) ("KS12"), Zhang and He (2014) ("ZH14"), and Zhang and Shao (2014) ("ZS14"), respectively. The evaluation was performed in three dimensions: model ability to reproduce observed deposition velocities, Vd (accuracy); the influence of imprecision in input parameter values on the modeled Vd …

Dynamic Technology Challenges Static Codes Of Ethics, Bo Brinkman, Catherine Flick, Don Gotterbarn, Keith Miller, Kate Vazansky, Marty Wolf

Education Sciences and Professional Programs Faculty Works

We describe the process of changing and the changes being suggested for the ACM Code of Ethics and Professional Conduct. In addition to addressing the technical and ethical basis for the proposed changes, we identify suggestions that commenters made in response to the first draft. We invite feedback on the proposed changes and on the suggestions that commenters made.

A Vertical Axis Rotor For Wave Energy Conversion, Yingchen Yang, Joab Soto, Francisco Salazar

Mechanical Engineering Faculty Publications

The present work augments vertical-axis unidirectional wave energy converter (WEC) designs with a new approach. The enabling technique is the hydrodynamic design of a special rotor, which consists of a series of uniquely shaped blades in a certain formation. Specifically, individual blades are realized by revolving a two-dimensional symmetric hydrofoil about its chord line. Then the blades are arranged around a vertical shaft in a desired formation to form the rotor. When driven by an approaching flow through interaction, the rotor naturally rotates about the vertical shaft in a predefined direction. The approaching flow could be from any spatial direction, …

Safety Climate Of Ab-Initio Flying Training Organizations: The Case Of An Australian Tertiary (Collegiate) Aviation Program, Yi Gao, Natalia Rajendran

Journal of Aviation Technology and Engineering

A healthy safety culture is essential to the safe operation of any aviation organization, including flight schools. This study aimed to assess the safety climate of an Australian tertiary (collegiate) aviation program using a self-constructed instrument. Factor analysis of the instrument identified four safety themes, which are Safety Reporting Culture, Safety Reporting Procedure, Organizational Culture and Practice, and General Safety Knowledge. The responses of student pilots suggested that the overall safety climate of the subject flight training academy was healthy at the time of the survey. Further analyses found that perceptions of students of different year groups on Reporting Culture …

The Message Of Maji

Colby Magazine

When we read the application for a Davis Projects Peace grant submitted by Bernard Kibet '18, we were struck by both its simplicity and its ambition. With the analytical view of an economics major, Kibet had devised a way to bring water to his community in Kenya, potentially changing the lives of thousands of people for generations to come.

Advisory Bike Lanes In North America, Michael Williams

PSU Transportation Seminars

Despite being used successfully for decades in Europe, Advisory Bike Lanes are an emerging facility type in North America and can be an effective tool for communities wishing to provide bicycle lanes on streets that are otherwise too narrow to accommodate them. This talk will introduce the concept and operation of advisory bike lanes and look at some lessons learned from the early installations of this facility in the U.S. and Canada.

Annual Pumpkin Toss Combines Fall, Physics And Fun | College Of Engineering, Usu College Of Engineering

College of Engineering News

Engineering students from across Utah will compete Saturday, Oct. 28 to see who can hurl their ripening jack-o’-lanterns the farthest.

Semi-Annual Program Progress Performance Report For University Transportation Systems Pppr#8, Florida Solar Energy Center, Richard Raustad

FSEC Energy Research Center®

The major activity of the past reporting period has been the completing of the final project research reports. During the period, twelve projects (numbers 3, 7, 10, 14, 17, 9, 22, 4, 5, 13, 20 and 18) were completed and the final project reports forwarded to DOT and the required associated organizations. Two additional final reports (numbers 12 and 21) are close to being completed. Final reports for the other 4 remaining projects (numbers 2, 8, 11 and 15) are in various stages of completion. For this reporting period, EVTC researchers concluded 12 project final reports, authored one publication, made …

An Analysis Of The Optimal Mix Of Global Energy Resources And The Potential Need For Geoengineering Using The Ceagom Model, John George Anasis, M. A. K. Khalil, George G. Lendaris, Christopher L. Butenhoff, Randall Bluffstone

Complex Systems Faculty Publications and Presentations

Humanity faces tremendous challenges as a result of anthropogenic climate change caused by greenhouse gas emissions. The mix of resources deployed in order to meet the energy needs of a growing global population is key to addressing the climate change issue. The goal of this research is to examine the optimal mix of energy resources that should be deployed to meet a forecast global energy demand while still meeting desired climate targets. The research includes the unique feature of examining the role that geoengineering can play in this optimization. The results show that some form of geoengineering is likely to …