Digital Commons Network^™

Software Internationalization: A Framework Validated Against Industry Requirements For Computer Science And Software Engineering Programs, John Huân Vũ

Master's Theses

View John Huân Vũ's thesis presentation at http://youtu.be/y3bzNmkTr-c.

In 2001, the ACM and IEEE Computing Curriculum stated that it was necessary to address "the need to develop implementation models that are international in scope and could be practiced in universities around the world." With increasing connectivity through the internet, the move towards a global economy and growing use of technology places software internationalization as a more important concern for developers. However, there has been a "clear shortage in terms of numbers of trained persons applying for entry-level positions" in this area. Eric Brechner, Director of Microsoft Development Training, suggested …

St. Jude Medical: St Monitoring, Anna Marie Kinney

Master's Theses

Myocardial infarction is the leading cause of death in the western world. Time is critical when treating patients with myocardial infarction. The major problem is that many patients who are symptomatic wait too long before seeking medical attention, and some patients have no symptoms at all. In order to improve patient outcome there needs to be a better way to diagnose myocardial infarction. One solution is the continuous monitoring of the ST-Segment of the intrinsic ventricular beat morphology, called the QRS complex. There have been many studies that show that there are detectable shifts of the ST-Segment during coronary occlusion. …

City Of San Luis Obispo: Community And Municipal Operations 2005 Baseline Greenhouse Gas Emissions Inventory, Geoffrey M. Chiapella

Master's Theses

The passage of AB 32 in 2006 initiated the need for city planners in California to consider the quantification of greenhouse gas emissions at the community level in order to develop policies and programs to reduce emissions in the future. Although local jurisdictions are not required to quantify and report emissions at this time, the AB 32 Climate Change Scoping Plan recommended a reduction goal for local governments of 15 percent below today’s levels by 2020 to ensure consistent reduction goals at the state and local levels.

ICLEI-Local Governments for Sustainability initiated the Cities for Climate Protection (CCP) campaign in …

High Voltage Resonant Self-Tracking Current-Fed Converter, Scott Logan Mcclusky

Master's Theses

High voltage power supply design presents unique requirements, combining safety, controllability, high performance, and high efficiencies. A new Resonant Self-Tracking Current-Fed Converter (RST-CFC) is investigated as a proof-of-concept of a high voltage power supply particularly for an X-ray system. These systems require fast voltage rise times and low ripple to yield a clear image.

The proposed converter implements high-frequency resonance among discrete components and transformer parasitics to achieve high voltage gain, and the self-tracking nature ensures operation at maximum gain while power switches achieve zero-voltage switching across the full load range. This converter exhibits an inherent indefinite short-circuit capability. Theoretical …

Autonomous Satellite Operations For Cubesat Satellites, Jason Lionel Anderson

Master's Theses

In the world of educational satellites, student teams manually conduct operations daily, sending commands and collecting downlinked data. Educational satellites typically travel in a Low Earth Orbit allowing line of sight communication for approximately thirty minutes each day. This is manageable for student teams as the required manpower is minimal. The international Global Educational Network for Satellite Operations (GENSO), however, promises satellite contact upwards of sixteen hours per day by connecting earth stations all over the world through the Internet. This dramatic increase in satellite communication time is unreasonable for student teams to conduct manual operations and alternatives must be …

St Monitoring On The Programmer For Implantable Cardioverter Devices, Sarina Satya

Master's Theses

Cardiovascular disease is one of the most prevalent causes of death which has a high mortality rate. If identified early and treated appropriately, the mortality in patients with cardiovascular disease can be hugely reduced. For several decades, 12-Lead ECG has been the standard technique used to identify ischemia, and recent studies have shown that intracardiac electrogram has many benefits over external monitoring such as holter. ST Monitoring feature has been added to St. Jude Medical intracardiac cardioverter defibrillators (ICD) to leverage the ECG technology for identifying cardiovascular disease. This algorithm monitors the intracardiac electrogram to detect and report patterns which …

Performance Of A Stormwater Filter And Bacteria Inactivation Using Biocidal Media, Alexander Scott Bowerman

Master's Theses

There are many possible ways to mitigate stormwater pollution, but this study focused on the DrainPacTM catchment basin insert and the feasibility of integrating N-halamine biocidal brominated beads into the filter system. This study was divided into three sections. The first section involved testing a DrainPacTM filter for treatable flow rates, head loss, and removal of solids, oil, and bacteria. The DrainPacTM filter is designed to be installed in a stormwater catch basin. The filter is composed of a 12 x 41 inch metal frame with textile filter media attached to it in a basket shape. The upper portion of …

Developing A Source Water Protection Plan For Boron In The San Luis Obispo County Water Supply, Jenny Macartney

Master's Theses

The goal of this project is to design a feasible way to develop a protection plan for boron in the surface waters and groundwater of San Luis Obispo County. Boron is a micronutrient needed by all plants and animals but the threshold for toxicity in plants is narrow. As the need for water increases and the production of wastewater and irrigation water infiltrates the soil and waters of the County, an understanding of background soil and water concentrations, as well as anthropogenically produced sources of boron must be quantified and mapped so that intelligent planning decisions can be made.

Many …

Bus On Shoulder: Local Assessment Of Shoulder Transit Lane For Regional Buses In San Luis Obispo County, Jessica R. Berry

Master's Theses

The study looks at the applicability of integrating a Bus Only Shoulder (BOS) into the intermittently congested segment of US 101 in southern San Luis Obispo County. Policy, infrastructure and implementing criteria derived from case studies in Minnesota, Florida and California (San Diego) and the 2007 California Decision Document on BOS are applied to conditions in the region. One measure of performance, time savings, is projected to 2025 to determine the value of integrating the program by that horizon year. Given the substantial potential for time savings in that future year, recommendations are made to create the appropriate policy and …

California As Music To American Ears: Migration, Technology, And Rock And Roll In The Golden State, 1946–2000, Toby T. Willett

Master's Theses

Migrations and technological advances in California following World War II, spurred radical changes in the production and development of popular music, most notably rock and roll. California largely lacked the entrenched traditions of the American Northeast, and in many ways its exploding population translated into the growth of a culture built around embracing newer methodologies, whether technological innovations or radical artistic departures. In large part owing to its increasing ethnic diversity during the economic expansion, California was uniquely poised to become a center of incredible postwar dynamism, especially when seen in the production, consumption, and stylistic development of music. Nevertheless, …

Quantifying Seismic Risk For Portable Ground Support Equipment At Vandenberg Air Force Base, Joshua Brian Lowe

Master's Theses

This project develops a quantitative method to evaluate the seismic risk for portable GSE at Vandenberg Air Force Base. Using the latest probability data available from the USGS, risk thresholds are defined for portable GSE having the potential to cause a catastrophic event. Additionally, an example tool for design engineers was developed from the seismic codes showing the tipping hazard case can be simplified into strict geometrical terms. The misinterpretation and confusion regarding the Range Safety 24 Hour Rule exemption can be avoided by assessing seismic risk for portable GSE. By using the methods herein to quantify and understand seismic …

Receive Sensitivity Characterization Of The Polysat Satellite Communication System, Ivan M. Bland

Master's Theses

Following the successful launch of CP3 and CP4, the PolySat team noticed an unreliable uplink to both satellites. A significant problem with the PolySat COMM system is poor receive sensitivity of the communications system. Efforts have been made to improve the uplink margin, but without proper characterization of the receiver sensitivity, the problem cannot be fully addressed. By developing an accurate method of measuring receive sensitivity, a methodical approach can be used to properly diagnose the communication system and link budget. Two revisions of the PolySat COMM system will be measured and compared. An in-depth study of the PolySat COMM …

A Prediction Of The Acoustical Output Of A Golf Driver Head Using Finite Elements, Roger Sharpe

Master's Theses

A simulation was created using LS-DYNA® to determine the acoustical properties of a golf ball and golf driver head impact. LS-DYNA® has a coupled finite element analysis (FEA) and boundary element method (BEM) solver that uses the integral form of Helmholtz’s acoustic wave equation to deliver predicted sound pressure levels at predetermined acoustic points. Validation of the modeling was done on a simple plate donated by Titleist Golf. The plate was modeled and meshed using TrueGrid and impacted by a three layer golf ball model derived from “Tanka’s” paper on multilayered golf balls. The final converging model consisted of 10,900 …

Evaluations Of Procedural Justice: Evidence Of Group-Value Issue Influence In A Planning Context, Thomas W. Hooper

Master's Theses

Justice research in the field of social psychology has focused primarily on situations involving legal proceedings, dispute resolution, and hierarchal relationships within organizations. This study extends the work of social psychologist Tom Tyler and others to a planning context by demonstrating that participants in a planning process use group-value criteria in addition to control over decisions and decision making processes and the favorability of outcomes to define reactions to their experiences. While certain aspects of the case study from which survey interviews were conducted limited the ability to replicate specific results of the 1989 Tyler study used as a model …

System Integration And Attitude Control Of A Low-Cost Spacecraft Attitude Dynamics Simulator, Ryan L. Kinnett

Master's Theses

The CalPoly Spacecraft Attitude Dynamics Simulator mimics the rotational dynamics of a spacecraft in orbit and acts as a testbed for spacecraft attitude control system development and demonstration. Prior to this thesis, the simulator platform and several subsystems had been designed and manufactured, but the total simulator system was not yet capable of closed-loop attitude control. Previous attempts to make the system controllable were primarily mired by data transport performance. Rather than exporting data to an external command computer, the strategy implemented in this thesis relies on a compact computer onboard the simulator platform to handle both attitude control processing …

City Of Davis Greenbelt Master Plan, Brandon Haydu

Master's Theses

The City of Davis is currently updating its Parks and Recreation Facilities Master Plan. During the update, greenbelts were identified as a highly used and desired facility. This Greenbelt Master Plan serves as a plan focused on the opportunities greenbelts can provide as recreational and transportation facilities. This report has analyzed community feedback, greenbelt coverage, greenbelt capacity, and existing local, state, and federal design guidelines. The final plan is a set of goals, objectives, policies, and programs, along with a greenbelt map, which is aimed at improving the greenbelt infrastructure in Davis through the year 2020.

Keeping Dirt In Its Place: Runoff, Sediment Loss, And Cost Effectiveness Of Three Erosion Control Practices On Steep Slopes, Michael Hill

Master's Theses

Erosion is a natural process that occurs when soil particles are detached from one site and transported to another by water or wind, and can occur naturally or be accelerated by humans. Sediment can cause direct mortality or reduce growth of fish and other aquatic resources, particularly larval fish and eggs. Three treatments consisting of compost and jute netting, crimped straw with native seeds, and jute netting and vegetation filter strip were used to evaluate loss of runoff water and sediment on steep slopes. Erosion plots were built on slopes of 27 percent and filled with soil. The treatments were …

Time-Temperature Curing Relationship Of An Adhesive Binder With Rice Straw, Kevin Ka-Wan Ng

Master's Theses

Rice straw is a global and proliferate agricultural waste whose production grossly outstrips viable uses. Current disposal methods are not sustainable, and more convenient methods – such as incineration – exude poor environmental stewardship. Although the direct use of straw bales in building construction presents a practical and sustainable alternative, engineering challenges associated with using it prevent its wide adoption. The Stak Block – a composite formed from compressed rice straw and a heat-cured adhesive – may overcome challenges associated with straw bale building. However, the times and temperatures needed to cure the binder with straw are not well understood. …

The Presence Of Micropterus Salmoides (Largemouth Bass) Influences The Populations Of Rana Draytonii (California Red-Legged Frog) And Pseudacris Regilla (Pacific Treefrog) In Two Ponds In Santa Barbara County, California, Kenneth Lee Gilliland

Master's Theses

Alien fish have been implicated in the decline of Rana draytonii (California red-legged frog) and Pseudacris regilla (Pacific treefrog) populations. Micropterus salmoides (largemouth bass) is a common sport fish that has been introduced into the sympatric range of these two anuran species; however, no studies have investigated the individual influence that this alien fish has on these two species. I conducted M. salmoides control or eradication experiments during a four year study in two ponds within the Transverse Mountain Range of Santa Barbara County, California. Changes in the densities of all life stages of R. draytonii and P. regilla were …

Identification Of Physical Changes To A Steel Frame, Daniel Eric Means

Master's Theses

The thesis utilized physical testing and computer modeling to determine the feasibility of identifying a change to the mass or stiffness of a steel frame. Physical testing was performed using an accelerometer, linear shaker, and arbitrary function generator. Two methods of laboratory testing were developed: ambient vibration testing (AVT) and forced vibration testing (FVT). AVT was able to preliminarily identify the natural frequencies and mode shapes of the frame. FVT was able to precisely identify four distinct natural frequencies, mode shapes, and damping ratios. The baseline frame then underwent two physical changes: the addition of mass to its roof, and …

Adaptive Control Applied To The Cal Poly Spacecraft Attitude Dynamics Simulator, Matthew C. Downs

Master's Theses

The goal of this thesis is to use the Cal Poly Spacecraft Attitude Dynamics Simulator to provide proof of concept of two adaptive control theories developed by former Cal Poly students: Nonlinear Direct Model Reference Adaptive Control and Adaptive Output Feedback Control. The Spacecraft Attitude Dynamics Simulator is a student-built air bearing spacecraft simulator controlled by four reaction wheels in a pyramidal arrangement. Tests were performed to determine the effectiveness of the two adaptive control theories under nominal operating conditions, a “plug-and-play” spacecraft scenario, and under simulated actuator damage. Proof of concept of the adaptive control theories applied to attitude …

Studies On Real-Valued Negative Selection Algorithms For Self-Nonself Discrimination, Shane E. Dixon

Master's Theses

The artificial immune system (AIS) is an emerging research field of computational intelligence that is inspired by the principle of biological immune systems. With the adaptive learning ability and a self-organization and robustness nature, the immunology based AIS algorithms have successfully been applied to solve many engineering problems in recent years, such as computer network security analysis, fault detection, and data mining.

The real-valued negative selection algorithm (RNSA) is a computational model of the self/non-self discrimination process performed by the T-cells in natural immune systems. In this research, three different real-valued negative selection algorithms (i.e., the detectors with fixed radius, …

Control Law Design And Validation For A Helicopter In-Flight Simulator, Brian T. Fujizawa

Master's Theses

In-flight simulation allows one aircraft to simulate the dynamic response of another aircraft. A control system designed to give RASCAL, a JUH-60A Black Hawk helicopter based at Moffett Field, CA, in-flight simulation capabilities has been designed, optimized and validated in this research. A classical explicit model following control system with a frequency dependent feedback controller was used. The frequency dependent controller allows model following of the attitude in the short term and the velocity in the long term. Controller gains were optimized using a high order, linearized model of UH-60 dynamics. Non-linear simulations of the control laws were performed, first …

An Investigation Of Humeral Stress Fractures In Racing Thoroughbreds Using A 3d Finite Element Model In Conjunction With A Bone Remodeling Algorithm, Ryan James Moore

Master's Theses

The humerus of a racing horse Thoroughbred is highly susceptible to stress fractures at a characteristic location as a result of cyclic loading. The propensity of a Thoroughbred to exhibit humeral fracture has made equines useful models in the epidemiology of stress fractures. In this study, a racing Thoroughbred humerus was simulated during training using a 3D finite element model in conjunction with a bone remodeling algorithm. Nine muscle forces and two contact forces were applied to the 3-dimensional finite element model, which contains four separate load cases representing fore-stance, mid-stance, aft-stance, and standing. Four different training programs were incorporated …

Merlin.Net Automation Of External Reports Verification Process, Gabriel John Wettlaufer

Master's Theses

Merlin.net Patient Care Network is a St. Jude Medical product that is used for remote patient management. The basic concept of Merlin.net is to allow the physician to view patient device follow-up information as well as general patient and device information on a web application. The Merlin.net system also interfaces with the patient and will send them notification if they miss a follow-up. All device information will be collected automatically while the patient is sleeping. This information is sent through a telephone line to a Merlin.net server to process a report package and display the collected information on the Merlin.net …

Autumn Garden, Les Brady

Master's Theses

Autumn Garden is a novel using a semi-omniscient third-person narrator who conveys the perspectives of ten-year-old Nick Lucera, his mother, Mary, and father, Tony. The story challenges conventional beliefs of mortality as Nick confronts the greatest loss of his young life, his mother's impending death. The novel is set in 1970's coastal California.

Two characters influence how Nick processes events in his life: seventeen-year-old neighbor, Brian, an evangelical Christian, and Sal Amato, an acquaintance of Nick's parents, whose insights range from the curious to the fantastic. Brian's friendship is a refuge for Nick, who suffers regularly from the bullying inflicted …

Aircraft Deconfliction Responsibility Across En Route Sectors In Nextgen Separation Assurance, Christopher Donald Douglas Cabrall

Master's Theses

The subject of the current research is a Next Generation Air Transportation System (NextGen) concept that involves automated separation assurance developed to enable controllers to provide both safe and efficient air traffic services at much higher traffic densities than possible today. The study investigated the issue of how responsibility should be handled between controllers for the resolution of a conflict that is predicted to occur in a sector other than where it was detected. Two possibilities, a De-Conflicting AirPlanes procedure (DCAP) versus a De-Conflicting AirSpace procedure (DCAS), were examined under human-in-the-loop simulations with scripted aircraft conflicts. Results showed that the …

Phenotypical And Functional Analysis Of Peripheral T Cells In Foxn1 Transgenic Mice: Effects Of Aging, Paulette Krishack

Master's Theses

The thymus is the primary organ for the development and production of TCRαβ naive T cells. However, with increasing age thymic involution occurs, causing a decline in the output of naïve T cells. The decline in naïve T cell production results in a contraction in the peripheral naïve and expansion of the memory T cell pools. Not only are the production and compositions of peripheral T cells altered with age, T cell functions such as T cell proliferation and production of cytokines required for cell proliferation are also declined. Currently, it is not known if restoring the decline in the …

Stretched Too Thin: Low-Income Mothers' Work-Family Conflict And Preschoolers' Socioemotional Adjustment, Kelly Haas

Master's Theses

The purpose of the current study was to further our understanding of the association between low-income mothers' work-family conflict and their children's socioemotional adjustment, with a particular focus on externalizing and internalizing symptoms. To do so, the present study tested the mediating roles of mothers' psychological distress and positive parenting practices in the relation between work-family conflict and children's adjustment over time. Contrary to hypotheses, the linkage between low-income mothers' experience of conflict between their work and family roles and preschoolers' adjustment was not explained by mothers' symptoms of psychological distress or their use of positive parenting practices. Similarly, the …

El Veneno Y Los Remedios: Vida Y Muerte En La Narrativa De Mayra Montero, Jesus Castro Gorfti

Master's Theses

The purpose of this study is to demonstrate the important role that certain elements--namely poison and natural remedies--play in the narrative of Mayra Montero. Poison and natural remedies are an intrinsic part of the Voodoo and Santeria religions, which are the framework for her novels. Within these religions poison serves a dual purpose. Montero's characters employ poison not only for personal gain--and in their struggle against the establishment--but also for more beneficial means, for instance as a way of obtaining food. Natural remedies are part of the magical-medicinal nature of these religions. They maintain the physical and spiritual well-being of …