Digital Commons Network^™

Cal Poly To Host Sustainable Pest Management Conference Dec. 2-3 In San Luis Obispo, Public Affairs Office

Press Releases

No abstract provided.

Future Market Trends In Western Agriculture: Strategic Implications, Steven Slezak

Agribusiness

No abstract provided.

Engineering Advantage, Fall 2011, College Of Engineering

Engineering Advantage

No abstract provided.

Post-Fire Near-Surface Runoff From Small-Scale Rainfall Simulations, Santa Cruz Mountains, Michael Founds

Natural Resources Management and Environmental Sciences

The influence of environmental variables on the runoff response to a fire is poorly understood. Small-scale rainfall simulation was used to study the factors impacting near-surface runoff following the Lockheed Fire, which occurred on August 12, 2009. A variable speed rainfall simulator was used to rain on 15 different test plots at an average rate of 50mmh^-1. Variables of burn severity, time following the fire, soil parent material, vegetation type, and presence of a duff layer were all analyzed using the ratio of runoff to rainfall. The difference in-between burned sites and similar control sites were 19±6%. Only …

It’S All About Produce: Flexing The Muscles Of Western U.S. Organic Spinach Consumption, Christiane Schroeter, Xiaowei Cai

Agribusiness

Over the past few decades, consumers have become more concerned about health and nutrition, which is displayed by an increased demand for organic foods. Once considered a niche product, organic food has become more affordable for consumers through its availability in conventional supermarkets. In 2010, organic food and beverages showed a 7.7% increase in annual sales compared to 2009 sales, with the highest growth rate of 11.8 % in organic produce (Organic Trade Association (OTA), 2011).

A Report On The State Of Education And Graphic Communication Industry In Russia And Ukraine: A Five Week Journey, Ken Macro

Graphic Communication

No abstract provided.

History Department Newsletter, Fall 2011, History Department

History Department Newsletter

No abstract provided.

Adapting Clinical Services To Accommodate Needs Of Refugee Populations, Jessica A. Kaczorowski, Ann Shah Williams, Taylor F. Smith, Niloofar Fallah, Julia L. Mendez, Rosemery Nelson-Gray

Psychology and Child Development

The diversity of the refugee population in the United States requires practicing psychologists to respond by adapting clinical services to meet their mental health needs. However, the available literature on culturally adapted treatments is only a first step in guiding the process for adapting clinical services. This paper describes our experiences with designing and adapting a variety of clinical services for youth and families with refugee status. Guided by Sue's (2006) tenets for culturally competent service delivery, we discuss a therapeutic model of tiered service delivery used to deliver preventative services and treatment to refugee youth and adults. We discuss …

Self-Regulation Of Emotion, Functional Impairment, And Comorbidity Among Children With Ad/Hd, Arthur D. Anastopoulos, Taylor Smith, Melanie E. Garrett, Erin Morrissey-Kane, Nicole K. Schatz, Jennifer L. Sommer, Scott H. Kollins, Allison Ashley-Koch

Psychology and Child Development

Objective: This study investigated the role of self-regulation of emotion in relation to functional impairment and comorbidity among children with and without AD/HD. Method: A total of 358 probands and their siblings participated in the study, with 74% of the sample participants affected by AD/HD. Parent-rated levels of emotional lability served as a marker for self-regulation of emotion. Results: Nearly half of the children affected by AD/HD displayed significantly elevated levels of emotional lability versus 15% of those without this disorder. Children with AD/HD also displayed significantly higher rates of functional impairment, comorbidity, and treatment service utilization. …

Development And Prototyping Of A Ground Fault Circuit Interrupter For 3-Phase 480 Volt Systems, Matthew R. Norlander

Master's Theses

Ground Fault Circuit Interrupter (GFCI) technology was first introduced in the NEC in 1971, yet four decades later the technology has not been introduced to a great extent outside of the home environment. This thesis introduces the difficulties encountered in low-voltage three phase ground fault current detection, and adopts a previously patented tripping scheme to develop and prototype a digital relay for 3-phase 480 volt systems capable of the sensitivity and speed required for personnel safety. Results demonstrate the feasibility of the concept and suggest commercial development should be pursued. The prototype is capable of mA sensitivity and reliably detects …

Mueller Game Bird Farm Business Plan, Karl Mueller

BioResource and Agricultural Engineering

This senior project discusses the results from the development of a business plan for Mueller Game Bird Farm which specializes in raising bobwhite quail for hunters, falconers, and other hobbyists. The plan uses current research with personal experience to develop a realistic approach to fit the needs of this business.

A business plan is a document that will continually change as the business grows and develops. This plan is for the business at the current stage of producing 500 bobwhite quail per year and discusses plans for growth over the next three years as well as strategies to obtain that …

Upper Salinas Headwaters Conservation Plan, Justin T. Saydell

Master's Theses

The Upper Salinas Headwaters Conservation Plan is an effort to understand the cultural and ecosystem resources in the region, develop tools for conservation planning, and suggest a strategy and plan of action for implementation of those strategies. The plan covers a 218 square mile area between the Santa Lucia and the La Panza mountain ranges, south of Atascadero and east of the City of San Luis Obispo. The Conservation Area consists of rugged terrain made up of vast-relatively untouched open space. The area consists of several different vegetative communities including oak savannah grasslands, mixed hardwood and oak stands, shrubland, wetland …

September 28, 2011 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

Utilitarianism And Replaceability Or Are Animals Expendable?, Stefan Sencerz

Between the Species

In her very interesting paper, “Peter Singer on Expendability,” L. A. Kemmerer re-examines Peter Singer’s utilitarian argument implying that some being are replaceable and the implications of this argument for the issue of treating animals. I attempt to defend Singer, and more generally utilitarianism (including the principle of replaceability), against these objections. I argue that, given a utilitarian outlook, some animals are indeed replaceable. But I also argue that few animals are replaceable in practice.

Cal Poly Professor Awarded $3 Million Research Grant To Aid Low-Income Mothers, Public Affairs Office

Press Releases

No abstract provided.

Deborah Read Named New Vice President For University Advancement And Ceo Of The Cal Poly Foundation, Public Affairs Office

Press Releases

No abstract provided.

September 21, 2011 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

September 14, 2011 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

President's Remarks - 2011 Fall Conference, Jeffrey D. Armstrong

Publications and Administrative Reports

Remarks by Jeffrey D. Armstrong, President of California Polytechnic State University, delivered at the 2011 Fall Conference General Session on Tuesday, September 13, 2011 9:00 a.m. at the Performing Arts Center’s Christopher Cohan Center Harman Hall.

Fall Conference Schedule 2011, Center For Teaching & Learning, California Polytechnic State University - San Luis Obispo

Center for Teaching, Learning and Technology

No abstract provided.

Cal Poly Week Of Welcome Expands Student Education Program, Public Affairs Office

Press Releases

No abstract provided.

Assessing Near-Field Black Carbon Variability Due To Wood Burning And Evaluating Regression Models And Isc Dispersion Modeling, Stella Tan

Master's Theses

PM_2.5 variability within the neighborhood scale has not been thoroughly studied for wood burning communities. High variability in near-field PM_2.5 concentration may lead to harmful public exposure since monitoring does not occur on that scale. This study measures near-field PM_2.5 variability by measuring black carbon (BC), a component of PM_2.5, in a 1 km² area located in Cambria, California. BC and meteorological data (when meteorological instruments were available) were measured over thirteen 12-hour intensive operation periods (IOPs) occurring over the winters of 2009 and 2010. Near-field BC variability was measured to understand the type …

Season And Sex Of Host Affect Intensities Of Ectoparasites In Western Fence Lizards (Sceloporus Occidentalis) On The Central Coast Of California, Anthony S. Lumbad, Larisa K. Vredevoe, Emily N. Taylor

Biological Sciences

Seasonal variability in intensities of ectoparasites of western fence lizards (Sceloporus occidentalis) was quantified in spring, summer, and autumn 2008. Lizards were suspended over pans of water in the laboratory to enumerate replete western black-legged ticks (Ixodes pacificus) and mites. Intensity of ectoparasites was greatest in spring. On average, mites comprised the greatest proportion of ectoparasites, followed by larval and nymphal ticks, respectively. Mites were on lizards year-round. Overall intensity of ticks was greatest in spring, but low during summer and autumn. Males were more heavily parasitized by ticks than females in spring, whereas females had …

Modeling The Collagen Fibril Network Of Biological Tissues As A Nonlinearly Elastic Material Using A Continuous Volume Fraction Distribution Function, Reza Shirazi, Pasquale Vena, Robert L. Sah, Stephen M. Klisch

Mechanical Engineering

Despite distinct mechanical functions, biological soft tissues have a common microstructure in which a ground matrix is reinforced by a collagen fibril network. The microstructural properties of the collagen network contribute to continuum mechanical tissue properties that are strongly anisotropic with tensile-compressive asymmetry. In this study, a novel approach based on a continuous distribution of collagen fibril volume fractions is developed to model fibril reinforced soft tissues as nonlinearly elastic and anisotropic material. Compared with other approaches that use a normalized number of fibrils for the definition of the distribution function, this representation is based on a distribution parameter (i.e. …

University News

Cal Poly Magazine

No abstract provided.

Putting The 'Do' In Learn By Doing, Mary Mcnally

Cal Poly Magazine

No abstract provided.

Cal Poly Magazine, Fall 2011

Cal Poly Magazine

No abstract provided.

Small Wind Turbine Blade Sensor For Condition Based Maintenance, Chun Kau Cheung

Master's Theses

Wind Energy is a fast growing industry. However, wind turbines are expensive to build, so they need proper maintenance to prolong service life. Since blades are the most important components in the wind turbine, this project prototyped a low cost sensing system to monitor blades' health. The sensor board uses Atmel microcontrollers to monitor the blade's vibration frequency by sampling a data set of 128 acceleration measurements. An integer version of Fast Fourier Transform is used to process those data. The result is then sent via radio wirelessly to a receiver for future processing. Through calculation with collected data, theoretically, …

Vibration-Based Health Monitoring Of Multiple-Stage Gear Train And Differential Planetary Transmission Involving Teeth Damage And Backlash Nonlinearity, Andrew Patrick Sommer

Master's Theses

The objective of this thesis is to develop vibration-based fault detection strategies for on-line condition monitoring of gear transmission systems. The study divides the thesis into three sections. First of all, the local stresses created by a root fatigue crack on a pinion spur gear are analyzed using a quasi-static finite element model and non-linear contact mechanics simulation. Backlash between gear teeth which is essential to provide better lubrication on tooth surfaces and to eliminate interference is included as a defect and a necessary part of transmission design. The second section is dedicated to fixed axis power trains. Torsional vibration …

Protective Effects Of Milk Phospholipids Against Uv Photodamage In Human Skin Equivalents, Zyra Achay

Master's Theses

The ultraviolet (UV) spectrum has been known to cause damage to skin in varying degrees. UVB radiation (290-320 nm) in particular, has been proven to be highly mutagenic and carcinogenic in many animal experiments compared to either UVA or UVC. The alarming rate of increase in skin cancer incidence has prompted many investigators to pursue other alternatives to sunscreens including changes in lifestyle habits and dietary consumption in order to boost our efforts in tackling this widespread disease. Previous studies employing confocal reflectance, MTT assay and histology suggest that milk phospholipids may possess protective properties against UVB-mediated damage but the …