Digital Commons Network^™

Barriers To Implementation Of A Health, Hygiene, & Sanitation Program: Chennai, India, Kelsey A. Steffen

Master's Theses

In India poor sanitation accounts for 1,600 daily deaths of children under the age of five (Dasra, 2012). The societal and environmental conditions in India and many other developing countries have continuously stood as barriers to facilitating changes in sanitation behavior. Efforts made to improve hygiene have continuously faced opposing forces including major gaps between the supply and demand of sanitation. This paper will focus on one pilot program conducted in Chennai, India over the summer of 2014. This program was designed to teach school children safe sanitation and hygienic habits by providing a guiding tool to teachers. The study …

The Smart Growth Implications Of The Los Angeles Adaptive Reuse Ordinance, Forrest F. Chamberlain

Master's Theses

The Los Angeles Adaptive Reuse Ordinance (ARO) is an incentive program that encourages building reuse through regulatory exemptions. The ARO was partially intended to reduce vehicle miles travelled by encouraging mixed commercial and residential uses in existing buildings within Downtown Los Angeles and areas poised for redevelopment (Mayor’s Office of Economic Development, 2004, pp. 22, 51). Researchers and planners claim that the ARO helped to reduce vehicle miles travelled (Bell, 2014; Los Angeles Department of City Planning, 2014d; Bullen & Love, 2009; Bernstein, 2012), but these claims are not supported by discussions of the spatial distribution of ARO projects in …

Mathematical Model Validation Of A Center Of Gravity Measuring Platform Using Experimental Tests And Fea, Michael Lashore

Master's Theses

This thesis sets out to derive an analytical model for a center of gravity (CG) measuring platform and examines its validity through experimental testing and Finite Element Modeling. The method uses a two-stage platform tilting process to first locate the planar CG coordinates and then find the third CG coordinate normal to the platform. An uncertainty model of the measuring platform was also developed, both CG and uncertainty models were implemented in the form of a MATLAB code. A load cell sizing task was also added to the code to assist the Integration Engineers at Jet Propulsion Laboratory in selecting …

Moxel Dags: Connecting Material Information To High Resolution Sparse Voxel Dags, Brent Robert Williams

Master's Theses

As time goes on, the demand for higher resolution and more visually rich images only increases. Unfortunately, creating these more realistic computer graphics is pushing our computational resources to their limits.

In realistic rendering, one of the common ways 3D objects are represented is as volumetric elements called voxels. Traditionally, voxel data structures are known for their high memory requirements. One of the standard ways these requirements are minimized is by storing the voxels in a sparse voxel octree (SVO). Very recently, a method called High Resolution Sparse Voxel DAGs was presented that can store binary voxel data orders of …

A Customer Value Assessment Process (Cvap) For Ballistic Missile Defense, Alex Hernandez

Master's Theses

A systematic customer value assessment process (CVAP) was developed to give system engineering teams the capability to qualitatively and quantitatively assess customer values. It also provides processes and techniques used to create and identify alternatives, evaluate alternatives in terms of effectiveness, cost, and risk. The ultimate goal is to provide customers (or decision makers) with objective and traceable procurement recommendations. The creation of CVAP was driven by an industry need to provide ballistic missile defense (BMD) customers with a value proposition of contractors’ BMD systems. The information that outputs from CVAP can be used to guide BMD contractors in formulating …

Clarification Of Recreational Pool Water Using Biological Additives Produced By Biowish(Tm), Reese Nathaniel Wilson

Master's Theses

Effects of commercially available bacterial products were investigated on two common recreational pool contaminants: sunscreen and cyanuric acid (CYA). Microbial products developed by BiOWiSH Technologies, Inc. were tested for enhancing mechanical filtration and water clarification in bench-scale bioreactors, with conditions mimicking those of recreational pool water. Bacterial consortia included proprietary mixes of Bacillus, Lactobacillus and Pseudomonas, and other genera of bacteria. BiOWiSH products are either fermented on a solid substrate consisting of rice bran and soy meal, or they are mixed with a soluble diluent. Twenty-nine BiOWiSH products were tested throughout forty experiments.

Experiments were carried out to determine both …

Bishop Peak Natural Reserve Conservation Plan Update, Douglas J. Bush

Master's Theses

My master's project is updating the Conservation Plan for the Bishop Peak Natural Reserve (BPNR) in San Luis Obispo, California. It is a professional project for the City of San Luis Obispo, supported by City policy that requires continued management of its open space network through management plans unique to each property. As one of the city's most visited open spaces and one of its most visible natural landmarks, the Bishop Peak Natural Reserve is in need of continued management and oversight. While much of the work in developing the plan focused on identifying issues and developing responsive policy, this …

Rest Api To Access And Manage Geospatial Pipeline Integrity Data, Alexandra Michelle Francis

Master's Theses

Today’s economy and infrastructure is dependent on raw natural resources, like crude oil and natural gases, that are optimally transported through a net- work of hundreds of thousands of miles of pipelines throughout America[28]. A damaged pipe can negatively a↵ect thousands of homes and businesses so it is vital that they are monitored and quickly repaired[1]. Ideally, pipeline operators are able to detect damages before they occur, but ensuring the in- tegrity of the vast amount of pipes is unrealistic and would take an impractical amount of time and manpower[1].

Natural disasters, like earthquakes, as well as construction are just …

An Investigation To Detect Delamination In Composite Laminated Plates Under Dynamic Loading, Jason Christopher Starnes

Master's Theses

In recent years composites have progressively been used for large-scale structures such as aircraft, ships, ground vehicles, and wind turbine blades. Traditional Nondestructive Evaluation (NDE) techniques have various limitations in assessing the performance of the large-scale composite structures. For instance, many techniques have the ability to measure either global or local properties but cannot measure both simultaneously. Nondestructive vibration detection techniques present a potential solution for evaluating both local and global large-scale composite structures, which are largely based on the fact that damage in a structure influences its dynamic characteristics such as modal parameters and Frequency Response Functions (FRF).

This …

Inlet Shape Considerations For Split-Wing Electric Distributed Propulsion, Kurt Vonderhaar Papathakis

Master's Theses

This thesis aims to uncover preliminary design relationships for an inlet of a split-wing electric distributed propulsion regional airliner. Several aspects of the inlet design were investigated, including: the overall thickness of the airfoil section with respect to the chord, inlet throat area, and lip radius. These parameters were investigated using several angles of attack and mass flow rates through the fan. Computational fluid dynamics, with a 2^nd Order turbulence model was used and validated against World War II era data from NACA, as those studies were the most pertinent wind tunnel data available. Additionally, other works by Boeing, …

High Moisture Extrusion Of Oatmeal, Brandon F. Coleman

Master's Theses

Oats are considered to be a highly nutritious breakfast food available to consumers. Heightened consumer interest in functional food products and advances in human nutrition have led to increased levels of interest in the development of new oat based products (Webster and Wood 2011). Developments in technology have led to manufacturing of instant oatmeal, making the product more convenient to consumers. Low moisture extrusion processing is one of the most widely used methods to produce ready to eat breakfast cereals; however, there has been little research carried out to determine if high moisture extrusion methods would be viable. This study …

Sweep Stability Characterization Of A Vernier-Tuned Distributed Bragg Reflector (Vt-Dbr) All-Semiconductor Tunable Swept Laser System At 1550 Nm For Sensing Applications, Roric Christian Martens Biersach

Master's Theses

The short-term jitter and longer-term wander of the frequency sweep profile of a Vernier-Tuned Distributed Bragg Reflector (VT-DBR) laser at 1550 nm used in optical coherence tomography (OCT) and other sensing applications is characterized in this work. The VT-DBR has demonstrated success in source-swept OCT (SSOCT), performing both intensity and phase-sensitive OCT.

The purpose of this paper is to investigate one of the unique aspects of the VT-DBR laser that makes it successful in OCT: the stability of the linear optical frequency sweep. A highly stable linear optical frequency sweep implies benefits for further fiber sensing applications including fiber Bragg …

Structural Micrometeoroid And Radiation Shielding For Interplanetary Spacecraft, Jared Allen Ruekberg

Master's Theses

This paper focused on two significant space forces that can affect the success of a spacecraft: the radiation and micrometeoroid environments. Both are looked at in the context of the region of space between Earth and Mars. The goal was create reference environments, to provide context to results of environmental modeling, and to provide recommendations to assist in early design decisions of interplanetary spacecraft. The radiation section of this report used NASA's OLTARIS program to generate data for analysis. The area of focus was on the radiation effects for crewed missions, therefore effective dose equivalent was the metric used to …

Toward The Systematization Of Active Authentication Research, Daniel Fleming Gerrity

Master's Theses

Authentication is the vital link between your real self and your digital self. As our digital selves become ever more powerful, the price of failing authentication grows. The most common authentication protocols are static data and employed only once at login. This allows for authentication to be spoofed just once to gain access to an entire user session. Behaviometric protocols continuously consume a user’s behavior as a token of authentication and can be applied throughout a session, thereby eliminating a fixed token to spoof. Research into these protocols as viable forms of authentication is relatively recent and is being conducted …

The Use Of Sphingomyelin To Protect Against Uv Induced Dna Damage In Human Keratinocytes, Kevin Campbell

Master's Theses

Non melanoma skin cancer (NMSC) is a serious condition caused by chronic ultraviolet (UV) exposure that leads to DNA damage in skin. UV radiation has the potential to lead to DNA damage, which triggers biochemical pathways within a cell. The result is that the cell either undergoes cell cycle arrest, giving the cell time to repair DNA damage, or apoptosis. Sunscreen is the most commonly used treatment for preventing UV induced skin damage, but it involves a number of undesirable and toxic side effects including damaging the dermis, premature aging of skin and underweight child births. This has led to …

Development Of A Human Tibiofemoral Joint Finite Element Model To Investigate The Effects Of Obesity And Knee Malalignment On Joint Contact Pressure, Meghan Sylvia

Master's Theses

Obesity is a known risk factor for osteoarthritis (OA). Excess body weight generates greater joint contact forces at the knee; however, obese individuals alter their gait to decrease joint contact forces. Knee malalignment has been identified as a strong mediating factor between obesity and knee OA progression. Excess body weight acting on a varus malaligned knee would have an additive effect on cartilage stress and could cause stress levels to exceed the threshold limit for damage and loss of cartilage matrix.

A finite element (FE) model of the human tibiofemoral joint was developed and validated in order to investigate changes …

Locating Optimal Water Quality Monitoring Locations Using Demand Coverage Index Method, Jeffrey Scott Brake

Master's Theses

Water quality regulations are always expanding especially in the field of water quality monitoring; however, threats to our water distribution systems still remain. Components of water distribution systems are susceptible to intentional and accidental contamination; therefore, they represent highly vulnerable aspects of our vital infrastructure.

An analysis was performed on a city in California with a population of 30,000 to 40,000 residents. The analysis is performed to determine the optimal locations of monitoring stations throughout the water distribution system. The method presented by Liu and colleagues (Liu et al, 2012) selects the optimal monitoring locations for the virtual California city …

Analysis Of Mos Current Mode Logic (Mcml) And Implementation Of Mcml Standard Cell Library For Low-Noise Digital Circuit Design, Marcus Edwin Allan Heim

Master's Theses

MOS current mode logic (MCML) offers low noise digital circuits that reduce noise that can cripple analog components in mixed-signal integrated circuits, when compared to CMOS digital circuits. An MCML standard cell library was developed for the Cadence Virtuoso Integrated Circuit (IC) design software that gives IC designers the ability to design complex, low noise digital circuits for use in mixed-signal and noise sensitive systems at a high level of abstraction, allowing them to get superior products to market faster than competitors. The MCML standard cell library developed and presented here allows for fast development of mixed signal circuits by …

Aged 539- Quality Criteria Standards & Supporting Documents, Alexa R. Stanton

Agricultural Education: Graduate Internship Reports

This internship/project report includes validation documents required in meeting the quality criteria for secondary-level programs of instruction in agriculture. The documents are concurrently used for the Agriculture Incentive Grant review process at Kingsburg High School conducted by representatives of the California Department of Education. The internship included the development of an Advisory Committee for Kingsburg High School. The plan includes information to establish the committee, create a constitution, board approval, host 2 committee meetings and attach minutes, along with establishing a recognition program for committee members

Smoke & Mirrors, Justin R. Pecot

Music

No abstract provided.

Nocturne: The Life And Music Of Chopin, Bethany Springer

Music

No abstract provided.

Evaluation Of Design Tools For The Micro-Ram Air Turbine, Victor Fidel Villa

Master's Theses

The development and evaluation of the design of a Micro-Ram Air Turbine (µRAT), a device being developed to provide power for an autonomous boundary layer measurement system, has been undertaken. The design tools consist of a rotor model and a generator model. The primary focus was on developing and evaluating the generator model for the prediction of generator brake power and output electrical power with and without rectification as a function of shaft speed and electrical load, with only basic manufacturer specifications given as inputs. A series of motored generator evaluation test were conducted at speeds ranging from 9,000 to …

Transition Orbits Of Walking Droplets, Joshua Parker

Physics

It was recently discovered that millimeter-sized droplets bouncing on the surface of an oscillating bath of the same fluid can couple with the surface waves it produces and begin walking across the fluid bath. These walkers have been shown to behave similarly to quantum particles; a few examples include single-particle diffraction, tunneling, and quantized orbits. Such behavior occurs because the drop and surface waves depend on each other to exist, making this the first and only known macroscopic pilot-wave system. In this paper, the quantized orbits between two identical drops are explored. By sending a perturbation to a pair of …

Saddle Force Mapping, Molly Totten

Physics

In horseback riding, the size and shape of a saddle can drastically effect the comfort, attitude and performance of the horse as well as the effectiveness of the rider. In an effort to create an accurate means of fitting the saddle to the horse, I have created a pressure sensing device that maps the force differences along critical areas of the horse's back during motion. Using an Arduino microprocessor and appropriate circuits, data was collected about the pressure levels between the saddle and the horse's back and a graphic representation of the findings was created.

Veloelectric: Creating A Device That Harvests Energy From Bicycles, Austin Hall, Daniel Stohr, Tj Fox

Mechanical Engineering

Long distance mountain bikers, bike-packers, and many bikers in developing countries rely on electrical devices for safety and communication. These specific groups of people operate in areas with little to no electricity, and often times have no power to sustain their devices. The purpose of this Cal Poly senior project, VeloElectric, was to design, build, and test a kinetic energy harvester for bicycles that can be used to charge common mobile devices via USB. This senior project team created a device that attaches directly to a bicycle and uses vibrations to generate energy, which in turn powers a variety of …

Renal Artery Stent Fatigue Test, Braden Cooper, Munir Eltal, Jennifer Hawthorne, Ashley Schaefer

Mechanical Engineering

In today’s world of medical innovation, regulations and requirements set by organizations such as the Food and Drug Administration (FDA), the International Organization for Standardization (ISO), and ASTM International (American Society for Testing and Materials) can inhibit rapid innovation by demanding rigorous testing of new designs. For arterial stents, the standard is that each design must be tested to simulate 10 years of life in an environment congruent to an in vivo environment. Endologix in Irvine, California develops and manufactures minimally invasive treatments for aortic diseases, with a focus on stent grafts for the treatment of abdominal aortic aneurysms (AAA). …

Electric Commuter Multicopter, Marley Hunter Miller, Blake Sperry, Ike Sheppard, Olliver Fredrick Kunz, Sam Juday, Alex O'Hearn, Kyle Seth Kruse, Arthur Norwood, Jarrell Washington

Mechanical Engineering

This document describes the design, analysis, and overall goals of the Electric Commuter Multicopter (ECM) Senior Project. It was presented by Bob Addis and Bill Burner to the senior mechanical engineering class of 2015 at Cal Poly, San Luis Obispo. The progress and development of the project are described in detail and to an extent that an individual or group with similar aspirations can construct their own multicopter or expand upon this one. The goal of this project is to create an Ultralight, as defined by FAA Part 103, commuter multicopter vehicle capable of transporting an individual to and from …

Ir Barcode Reader, Isaac Lambing, Justin Gronet, Tony Ly, Mark Berry

Mechanical Engineering

BrandWatch Technologies is a company based in Portland, Oregon that seek to detect counterfeit products in the supply chain. BrandWatch has created a taggant material, a physical marker, that can be printed over barcodes or added to the ink used to print the barcodes themselves. This material, while invisible to the naked eye, is detectable using technology that they have developed.

BrandWatch enlisted the help of a four man team of Cal Poly Mechanical Engineering students to combine this technology with that of a barcode scanner. The device, capable of scanning barcodes, detecting the presence of the taggant material, and …

Parkinson's Freezing-Of-Gait Device, Megan M. Gerlach, Austin J. Krause, Berizohar Padilla

Mechanical Engineering

No abstract provided.

Heart Valve Leaflet Deflection Testing Apparatus, Brandon Cunnane, Andrew Krasts, Jackson Kunz, Steven Warnert

Mechanical Engineering

The information contained in this report is confidential and proprietary information of Edwards Lifesciences.