Engineering Commons^™

Simple Linear Interpolation Explains All Usual Choices In Fuzzy Techniques: Membership Functions, T-Norms, T-Conorms, And Defuzzification, Vladik Kreinovich, Jonathan Quijas, Esthela Gallardo, Caio De Sa Lopes, Olga Kosheleva, Shahnaz Shahbazova

Departmental Technical Reports (CS)

Most applications of fuzzy techniques use piece-wise linear (triangular or trapezoid) membership functions, min or product t-norms, max or algebraic sum t-conorms, and centroid defuzzification. Similarly, most applications of interval-valued fuzzy techniques use piecewise-linear lower and upper membership functions. In this paper, we show that all these choices can be explained as applications of simple linear interpolation.

Setting Up A Highly Configurable, Scalable Nimbus Cloud Test Bed Running On A Manet, Joshua Mckee

Departmental Technical Reports (CS)

No abstract provided.

Synchrophasor Sensing And Processing Based Smart Grid Security Assessment For Renewable Energy Integration, Huaiguang Jiang

Electronic Theses and Dissertations

With the evolution of energy and power systems, the emerging Smart Grid (SG) is mainly featured by distributed renewable energy generations, demand-response control and huge amount of heterogeneous data sources. Widely distributed synchrophasor sensors, such as phasor measurement units (PMUs) and fault disturbance recorders (FDRs), can record multi-modal signals, for power system situational awareness and renewable energy integration.

An effective and economical approach is proposed for wide-area security assessment. This approach is based on wavelet analysis for detecting and locating the short-term and long-term faults in SG, using voltage signals collected by distributed synchrophasor sensors.

A data-driven approach for fault …

Frito-Lay - Supply Chain Impact Analysis, Kerri Blosch, Vincent Phua, Jeffrey Silva

Industrial and Manufacturing Engineering

The snack food company Frito-Lay relies on Route Sales Representatives (RSRs) to stock and maintain shelves of snack foods in every store. Frito-Lay currently does not have a system which can accurately predict cannibalization, or the effects of a store opening or closing on other stores of the same chain in the area. The goal is to sort through 1900 stores in a given metropolitan area to see the effects of cannibalization. In order to tackle the problem, a Microsoft Access program was created to filter stores based on location or whether the store was open for the full three-year …

Process Testing And Improvement Of Tapping Machinery At Lisi Aerospace, Michael James Hester

Industrial and Manufacturing Engineering

This report documents my senior project for California Polytechnic State University San Luis Obispo. I have chosen to do a senior project with Lisi Aerospace. Lisi would like to compare the manufacturer rated cycle count of taps versus an experimental one based on our machines in house. My goal for this project would be to run an experiment on one tapping machine and report on the achievable cycle count for the taps. I plan to do this in several ways including:

• Running extra cycle counts above tap manufacturer recommendations

• Documenting machine failure modes

• Create a process document to be repeated …

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Improving Advertisement Recognition And User Interface Of Gameofwarrealtips.Com, Chad Kihm, Alexander Meyer

Industrial and Manufacturing Engineering

The purpose of this experiment was to determine which location of advertisement would be the most recognized on the Game of War Real Tips website and to improve the website’s user interface by using both quantitative and qualitative data. To accomplish this, two experiments were created. The first experiment was designed to determine which location of advertisement would be recognized most by users. A screen would flash for 0.5 seconds and the subjects would mark where they believed they recognized an advertisement. A statistical analysis was completed to determine whether the location of the advertisement had an effect on the …

Explosive-Driven Shock Wave And Vortex Ring Interaction With A Propane Flame, P. Giannuzzi, M. J. Hargather, Graham Doig

Aerospace Engineering

Experiments were performed to analyze the interaction of an explosively driven shock wave and a propane flame. A 30 g explosive charge was detonated at one end of a 3-m-long, 0.6-m-diameter shock tube to produce a shock wave which propagated into the atmosphere. A propane flame source was positioned at various locations outside of the shock tube to investigate the effect of different strength shock waves. High-speed retroreflective shadowgraph imaging visualized the shock wave motion and flame response, while a synchronized color camera imaged the flame directly. The explosively driven shock tube was shown to produce a repeatable shock wave …

Liquefaction Potential Of Recent Fills Versus Natural Sands Located In High-Seismicity Regions Using Shear-Wave Velocity, R. Dobry, T. Abdoun, K.H. Stokoe Ii., R. E.S. Moss, M. Hatton, H. El Ganainy

Civil and Environmental Engineering

The liquefaction potential of clean and silty sands is examined on the basis of the field measurement of the shear-wave velocity, Vs. The starting point is the database of 225 case histories supporting the Andrus-Stokoe Vs-based liquefaction chart for sands, silts, and gravels. Only clean and silty sands with nonplastic fines are considered, resulting in a reduced database of 110 case histories, which are plotted separately by type of deposit. A line of constant cyclic shear strain, γcl≈0.03%, is recommended for liquefaction evaluation of recent uncompacted clean and silty sand fills and earthquake magnitude, Mw=7.5. The geologically recent natural silty …

Compensatory Enlargement Of Ossabaw Miniature Swine Coronary Arteries In Diffuse Atherosclerosis, Jenny Susana Choy, Tong Luo, Yunlong Huo, Thomas Wischgoll, Kyle Schultz, Shawn D. Teague, Michael Sturek, Ghassan S. Kassab

Computer Science and Engineering Faculty Publications

Studies in human and non-human primates have confirmed the compensatory enlargement or positive remodeling (Glagov phenomenon) of coronary vessels in the presence of focal stenosis. To our knowledge, this is the first study to document arterial enlargement in a metabolic syndrome animal model with diffuse coronary artery disease (DCAD) in the absence of severe focal stenosis. Two different groups of Ossabaw miniature pigs were fed a high fat atherogenic diet for 4 months (Group I) and 12 months (Group II), respectively. Group I (6 pigs) underwent contrast enhanced computed tomographic angiography (CCTA) and intravascular ultrasound (IVUS) at baseline and after …

Moor Movement: Automated Docking On Drought-Stricken Reservoirs, Daniel Beck

Landscape Architecture

Moor Movement establishes a mechanized docking system for unpredictable shoreline fluctuations on inland lakes and reservoirs. Due to climate change and warmer global temperatures, the threat of ocean level rise has initiated massive proposals to address the interface between ocean and man-made infrastructure. While this is a monumental problem, ocean level rise is not the only immediate threat. The recently declared emergency drought conditions in California are finally bringing attention to inland lakes and reservoirs. While ocean levels might rise 2-7 feet in 100 years, a lake could drop 100 feet in 5 years. What happens to access roads, marinas, …

Fail-Safe Test Generation Of Safety Critical Systems, Salwa Elakeili

Electronic Theses and Dissertations

This dissertation introduces a technique for testing proper failure mitigation in safety critical systems. Unlike other approaches which integrate behavioral and failure models, and then generate tests from the integrated model, we build safety mitigation tests from an existing behavioral test suite, using an explicit mitigation model for which we generate mitigation paths which are then woven at selected failure points into the original test suite to create failure-mitigation tests (safety mitigation test).

Factorial Design Approach In Proportioning Prestressed Self-Compacting Concrete, Wu-Jian Long, Kamal Khayat, Guillaume Lemieux, Feng Xing, Wei-Lun Wang

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

In order to model the effect of mixture parameters and material properties on the hardened properties of, prestressed self-compacting concrete (SCC), and also to investigate the extensions of the statistical models, a factorial design was employed to identify the relative significance of these primary parameters and their interactions in terms of the mechanical and visco-elastic properties of SCC. In addition to the 16 fractional factorial mixtures evaluated in the modeled region of -1 to +1, eight axial mixtures were prepared at extreme values of -2 and +2 with the other variables maintained at the central points. Four replicate central mixtures …

Laboratory Building- Sandia National Laboratories, Albuquerque, Nm, Joshua Herrera

Fire Protection Engineering: Culminating Experience Project Reports

The purpose of the culminating report was to perform a prescriptive-based and performance-based analysis on the fire and life safety systems in the laboratory building at Sandia National Laboratories (SNL). The prescriptive-based analysis determined if the laboratory building met applicable code requirements for life safety systems. The performance-based analysis conducted a series of fire scenarios to ensure the fire and life safety systems provided adequate egress time for occupants in the event of a fire. The prescriptive-based analysis was based on the Life Safety Code (LSC) and International Building Code (IBC). The laboratory building is a mixed occupancy building. The …

Fire And Life Safety Evaluation & Analysis- Bonderson Engineering Projects Center, Garrett Brown

Fire Protection Engineering: Culminating Experience Project Reports

A Fire and Life Safety Analysis of the Bonderson Engineering Projects Center, (BEPC) Building 197 on the California Polytechnic State University, San Luis Obispo (Cal Poly) Campus is performed. Both prescriptive and performance based methods and metrics are utilized to evaluate the facility with respect to current fire and building standards and codes. Prescriptive fire protection features and systems analyzed include: building construction type and design, structural fire protection features and requirements, occupancy classification and egress analysis, fire detection, alarm, and communication systems, and fire suppression systems The prescriptive based design requirements largely met the code and installation requirements with …

Rohner Creek Flood Control Project Research, Susie Van Kirk

Susie Van Kirk Papers

Compilation of deeds, tax assessments, census records, newspaper references and directories relating to the Rohner Creek Flood Control Project.

Date range: 1902-1962

Ua66 Ogden College Of Science & Engineering Newsletter, Cheryl Stevens, Dean

Ogden College of Science & Engineering Publications

No abstract provided.

Impacts Of Replacing A Tight Diamond Interchange With A Spui – A Wilsonville Interchange Study, Sina Vadaei

Civil and Environmental Engineering Master's Project Reports

Tight diamond interchanges (TDI) and single point urban interchanges (SPUIs) are generally types of interchanges that can be used interchangeably in areas where right-of-way is constrained. There are limited amount of research conducted regarding the operational analysis and comparison of these two interchanges. The research that has been done regarding this topic are outdated and generally conclude that SPUIs perform better or about the same. Without knowing the true performances of the two interchange designs, it would make it difficult for engineers and planners to choose between the two interchanges.

This research study will use the current updated version of …

Solar Energy Research Center- Lawrence Berkeley National Laboratory!, Shellie Prescott

Fire Protection Engineering: Culminating Experience Project Reports

This report covers both a prescriptive and performance-based review of fire and life safety systems for the Solar Energy Research Center at the Lawrence Berkeley National Laboratory. The primary subjects covered are egress, fire alarm systems, and sprinkler systems. A unique feature and focal point for this report is the SERC east exit stair. This stair was originally designed as a glass atrium, but for various reasons cannot be utilized as an atrium. The east exit stair has a special VESDA detection system, is the most remote location for the sprinkler system, and is a primary exit for all three …

Culminating Project Report- Warren J. Baker Center For Science And Mathematics, Blake Johnson

Fire Protection Engineering: Culminating Experience Project Reports

This report analyzes the fire protection features of the Warren J. Baker Center for Science and Mathematics on the Cal Poly San Luis Obispo campus in San Luis Obispo, CA. The prescriptive analysis of the structural fire protection, egress, fire suppression, and fire alarm, detection, and communication systems shows that the building meets the requirements of current codes and standards. The performance based analysis includes simulating design fire scenarios in the atrium using computer modeling (CFAST, FDS) and the results of these models show that the atrium meets the tenability criterion for the calculated evacuation time of occupants.

Microgrid Optimal Scheduling Considering Impact Of High Penetration Wind Generation, Abdulaziz Furreh Alanazi

Electronic Theses and Dissertations

The objective of this thesis is to study the impact of high penetration wind energy in economic and reliable operation of microgrids. Wind power is variable, i.e., constantly changing, and nondispatchable, i.e., cannot be controlled by the microgrid controller. Thus an accurate forecasting of wind power is an essential task in order to study its impacts in microgrid operation. Two commonly used forecasting methods including Autoregressive Integrated Moving Average (ARIMA) and Artificial Neural Network (ANN) have been used in this thesis to improve the wind power forecasting. The forecasting error is calculated using a Mean Absolute Percentage Error (MAPE) and …

Solar And Conservative Energy, Md Zahidur Rahman, Jonathan Anspike

Publications and Research

In the solar power and conservative energy, our basic mission was to build things that don’t use any sort of fuel that harms the environment. One of the most well-liked ways of conserving energy is using solar panels. Solar panels capture light, and transforms that light into electrical. The first objective in this research was to build an electric car that uses solar panels. To do so we connected a solar panel to a motor which rotates a series of gears that turns the wheels. We used a lot of sunlight though to power the motor enough were the gears …

Grit Mobile: Data Collection App For The Grit Research Project, Ryan Chang

Computer Science and Software Engineering

This project consists of one part of a larger University research project aimed at determining if active learning builds the character trait of grit in students while they learn in the domain of mechanical engineering. The research project has three goals: the development of a mobile app to measure the quantity and quality of active learning, a model of student success using the quantity and quality of active learning, and a characterization of the relationship between active learning and grit growth. This senior project focuses on the mobile app as part of the larger research project. The mobile app will …

Smart Solar Oven, Aaron Gragg

Computer Engineering

Though solar oven technology provides a green and cost effective means of cooking, it is often not adopted because it fails to meet the demands of speed and reliability that are commonplace in our society. This project explores the modification of a traditional box solar to meet these demands by allowing the oven to report temperature to a user’s phone as well as orient itself towards the sun throughout the day.

Characterization Of Bridge Deck Runoff, Shannon L. Bartelt-Hunt, Elizabeth G. Jones, Renys Barrios

Nebraska Department of Transportation: Research Reports

In this study, time-weighted composite samples of bridge runoff and hourly traffic data were collected at four sampling locations in Nebraska. Total suspended solids (TSS) and hexane extractable material (HEM) had the highest concentrations during the first rainfall event of the year, while other constituent concentrations peaked during the third rainfall event of the year. In general, constituent concentrations were highest in the spring, and then decreased throughout the summer and fall. Average concentrations of TDS, TSS, chloride, iron, and lead measured in this study were higher than those found in the previous NDOR study at the same sampling locations. …

Advancing Biomechanical Research Through A Camelid Model Of The Human Lumbar Spine, Dean K. Stolworthy

Theses and Dissertations

The increasing incidence of disc degeneration and its correlation with lower back pain is an alarming trend in modern society. The research of intervertebral disc degeneration and low back pain would greatly benefit from additional methods to study its etiology and possible treatment methods. A large animal model that maintains the biological and mechanical environment that is most similar to the human lumbar spine could provide substantial improvements in understanding and resolving the problem of intervertebral disc related low back pain.This dissertation presents my doctoral work of investigating the potential for the camelid cervical spine to serve as a suitable …

Detecting And Tracking Moving Objects From A Small Unmanned Air Vehicle, Patrick Defranco

Theses and Dissertations

As the market for unmanned air vehicles (UAVs) rapidly expands, the need for algorithmsthat improve the capabilities of those vehicles is also growing. One valuable capability for UAVsis that of persistent tracking—the ability to find and track another moving object, usually on theground, from an aerial platform. This thesis presents a method for tracking multiple ground targetsfrom an airborne camera. Moving objects on the ground are detected by using frame-to-frameregistration. The detected objects are then tracked using the newly developed recursive RANSACalgorithm. Much video tracking work has focused on using appearance-based processing for tracking,with some approaches using dynamic trackers such …

Vision Based Multiple Target Tracking Using Recursive Ransac, Kyle Ingersoll

Theses and Dissertations

In this thesis, the Recursive-Random Sample Consensus (R-RANSAC) multiple target tracking (MTT) algorithm is further developed and applied to video taken from static platforms. Development of R-RANSAC is primarily focused in three areas: data association, the ability to track maneuvering objects, and track management. The probabilistic data association (PDA) filter performs very well in the R-RANSAC framework and adds minimal computation cost over less sophisticated methods. The interacting multiple models (IMM) filter as well as higher-order linear models are incorporated into R-RANSAC to improve tracking of highly maneuverable targets. An effective track labeling system, a more intuitive track merging criteria, …

Hydrologic Data Sharing Using Open Source Software And Low-Cost Electronics, Jeffrey Michael Sadler

Theses and Dissertations

While it is generally accepted that environmental data are critical to understanding environmental phenomena, there are yet improvements to be made in their consistent collection, curation, and sharing. This thesis describes two research efforts to improve two different aspects of hydrologic data collection and management. First described is a recipe for the design, development, and deployment of a low-cost environmental data logging and transmission system for environmental sensors and its connection to an open source data-sharing network. The hardware is built using several low-cost, open-source, mass-produced components. The system automatically ingests data into HydroServer, a standards-based server in the open …

Investigation Of Laboratory Test Procedures For Assessing The Structural Capacity Of Geogrid-Reinforced Aggregate Base Materials, Jaren Tolman Knighton

Theses and Dissertations

The modulus of aggregate base layers in pavement structures can potentially be increased through the use of geogrid. However, methods for determining how much structural benefit can be expected from a given geogrid product have not been standardized. A laboratory testing protocol is therefore needed to enable evaluation, in terms of modulus or California bearing ratio (CBR), for example, of the degree of improvement that may be achieved by a given geogrid. Consequently, the objective of this research was to identify a laboratory test method that can be used to quantify improvements in structural capacity of aggregate base materials reinforced …

Highway Rail Crossing Prioritization, Bryan Gibson, Reginald R. Souleyrette

Kentucky Transportation Center Technical Assistance Report

Research team members at the University of Kentucky in the Department of Civil Engineering and the Kentucky Transportation Center (KTC) worked with the Kentucky Transportation Cabinet (KYTC) to develop a high-level mechanism for ranking highway-rail crossings for reconstruction and/or rehabilitation. The Highway Rail Crossing Prioritization implementation study yielded the Rail Crossing Improvement Priority (RCIP), which combined qualitative measures of crossing conditions with quantitative measures including proposed project costs and a valuation of the crossing based on rail and truck traffic. This effort provides a template by which further development can yield prioritization procedures for road-rail grade separation projects.