Copyright (c) 2009 California Polytechnic State University All rights reserved. http://digitalcommons.calpoly.edu Recent documents in DigitalCommons@CalPoly en-us Sat, 07 Nov 2009 05:26:52 PST 3600 http://digitalcommons.calpoly.edu/crp_fac/41 http://digitalcommons.calpoly.edu/crp_fac/41 Thu, 05 Nov 2009 12:45:03 PST The technology of producing methane gas from cow-dung and other wastes and using it as fuel for various, purposes has received considerable attention in India during the last decade. In the light of the growing energy shortage that the country faces gobar gas is being cited as having great potential for answering the energy needs of rural areas. In this climate it is relevant to explore the desirability of gobar gas technology from the village perspective since, after all, it is the farmer in' the countryside who, ultimately decides whether or not to invest in a gobar gas plant. This paper, based on the responses of residents of a village in Satara district called 'Sugao', attempts some general statements regarding the constraints on the adoption of gobar gas technology in rural areas. Its findings are that social, spatial, cultural and attitudinal criteria are as important as technical ones in the assimilation (or rejection) of new technology Hemalata C. Dandekar http://digitalcommons.calpoly.edu/crp_fac/40 http://digitalcommons.calpoly.edu/crp_fac/40 Thu, 05 Nov 2009 12:45:02 PST Hemalata C. Dandekar http://digitalcommons.calpoly.edu/crp_fac/38 http://digitalcommons.calpoly.edu/crp_fac/38 Thu, 05 Nov 2009 12:45:00 PST Hemalata C. Dandekar http://digitalcommons.calpoly.edu/crp_fac/39 http://digitalcommons.calpoly.edu/crp_fac/39 Thu, 05 Nov 2009 12:45:00 PST Hemalata C. Dandekar http://digitalcommons.calpoly.edu/crp_fac/37 http://digitalcommons.calpoly.edu/crp_fac/37 Thu, 05 Nov 2009 12:44:59 PST This article, a survey of three localities in a rapidly expanding suburb of Pune, differentiated classwise, illustrates the segmented utilisation of livelihood opportunities, services and facilities by the residents of the region. More importantly, the article attributes the suburb's robust growth to its timeliness in meeting the emerging housing needs of the upwardly mobile middle class living in the heart of the Pune city and also suggests, that its relatively low infrastructural cost may be an incentive attracting the retired members of middle class households of Mumbai. Hemalata C. Dandekar http://digitalcommons.calpoly.edu/crp_fac/36 http://digitalcommons.calpoly.edu/crp_fac/36 Thu, 05 Nov 2009 12:44:58 PST Hemalata C. Dandekar http://digitalcommons.calpoly.edu/theses/183 http://digitalcommons.calpoly.edu/theses/183 Thu, 05 Nov 2009 12:39:05 PST The objective of this thesis is to develop a biological wastewater treatment system that utilizes algal growth to simultaneously create renewable energy in the form of biodiesel and digester biogas, remove polluting nutrients, and abate greenhouse gases. Research under the Department of Energy Aquatic Species Program during 1978-1996 concluded that cultivating algae for biofuels was cost prohibitive at that time and that an integrated approach should be studied that combined wastewater treatment with algal biofuel production. Nutrient removal, in particular nitrogen and phosphorus, from wastewater is a growing regulatory need and the use of algae cultivation could create a unique marriage between waste treatment and biofuel production. To investigate this possible synergy, bench-scale tests were conducted to determine potential algal lipid productivity with mixed-cultures of algae grown on anaerobically-pretreated dairy wastewater in batch mode. The total lipid content of the algae ranged from 8% to 29% of algal mass. Maximum biomass concentration reached 920 mg/L, measured as volatile suspended solids, on Day 13 of incubation. In contrast, maximum total lipid content was reached at Day 6, corresponding to a lipid productivity of 2.8 g/m^2/day, or 1,200 gallons/acre/year if scaled up. Nutrient removal over 12 days of incubation was nearly complete. Total ammonia (NH3+NH4+) was reduced 96% to 1.1 mg/L as N, and phosphate (PO4^3-) was reduced >99% from an initial concentration of 2.5 mg/L PO4 as P. Ian C. Woertz http://digitalcommons.calpoly.edu/crp_fac/34 http://digitalcommons.calpoly.edu/crp_fac/34 Wed, 04 Nov 2009 16:17:29 PST Hemalata C. Dandekar http://digitalcommons.calpoly.edu/crp_fac/35 http://digitalcommons.calpoly.edu/crp_fac/35 Wed, 04 Nov 2009 16:17:29 PST Hemalata C. Dandekar http://digitalcommons.calpoly.edu/crp_fac/33 http://digitalcommons.calpoly.edu/crp_fac/33 Wed, 04 Nov 2009 16:17:28 PST Hemalata C. Dandekar http://digitalcommons.calpoly.edu/crp_fac/32 http://digitalcommons.calpoly.edu/crp_fac/32 Wed, 04 Nov 2009 16:17:27 PST Hemalata C. Dandekar http://digitalcommons.calpoly.edu/crp_fac/31 http://digitalcommons.calpoly.edu/crp_fac/31 Wed, 04 Nov 2009 16:17:26 PST Hemalata C. Dandekar http://digitalcommons.calpoly.edu/crp_fac/30 http://digitalcommons.calpoly.edu/crp_fac/30 Wed, 04 Nov 2009 16:17:25 PST Hemalata C. Dandekar http://digitalcommons.calpoly.edu/crp_fac/29 http://digitalcommons.calpoly.edu/crp_fac/29 Wed, 04 Nov 2009 16:17:24 PST This case study of the Mumbai-Pune Expressway points out that delivery of infrastructure like road and highways, especially mega projects, totally through the private sector is currently difficult. In the absence of such private sector capacity to take on this responsibility, the role has been creatively shouldered by the Maharashtra government by forming and supporting a road development corporation - carved out of its public works department in its primary mission, the building of essential projects in a timely fashion. The experience of the Mumbai-Pune Expressway indicates that the public sector, freed of political intervention and outdated organisational structure and given command and authority to innovate is able to deliver needed products efficiently. Hemalata C. Dandekar http://digitalcommons.calpoly.edu/artsp/12 http://digitalcommons.calpoly.edu/artsp/12 Wed, 04 Nov 2009 15:39:38 PST This is a documentation of the design process for Tellus 2009, the Cuesta College Annual Literary Journal. The project spans from research, inspiration, design experiments to final execution. A final, printed book will be produced and delivered to the client after working with a printing facility. Kristin Savage http://digitalcommons.calpoly.edu/artsp/11 http://digitalcommons.calpoly.edu/artsp/11 Wed, 04 Nov 2009 15:38:33 PST This is a report about a senior project website design. It is designed to broaden a customer base for a local company. This report contains information pertaining to the development of this website. Scott Alan McVicker http://digitalcommons.calpoly.edu/kine_fac/31 http://digitalcommons.calpoly.edu/kine_fac/31 Wed, 04 Nov 2009 13:15:54 PST Background Understanding the factors that influence successful weight control is critical for developing interventions. Purpose The purpose of the study was to provide a comprehensive understanding of the role of psychosocial, environmental, and behavioral variables in distinguishing weight-loss maintainers (WLM) from treatment-seeking obese (TSO). Methods WLM (n=167) had lost ≥10% of their maximum body weight, had kept the weight off for ≥5 years, and were now of normal weight. TSO-1 and TSO-2 had a history of dieting and body mass index ≥25. TSO-1 was predominantly Caucasian; TSO-2 was predominantly African-American. Bayesian model averaging was used to identify the variables that distinguished WLM from TSO-1 and TSO-2. Results The variables that most consistently discriminated WLM from TSO were more physical activity (ORs = 3.95 and 2.85), more dietary restraint (ORs = 1.63 and 1.41), and less dietary disinhibition (ORs = 0.69 and 0.83). Environmental variables, including the availability of physical activity equipment, TVs, and high-fat foods in the home, also distinguished WLM from TSO. Conclusions Obesity treatment should focus on increasing conscious control over eating, engaging in physical activity, and reducing disinhibition. Changes in the home environment may help facilitate these behavioral changes. Suzanne Phelan http://digitalcommons.calpoly.edu/pao_pr/2578 http://digitalcommons.calpoly.edu/pao_pr/2578 Tue, 03 Nov 2009 19:07:36 PST Public Affairs Office, California Polytechnic State University - San Luis Obispo http://digitalcommons.calpoly.edu/pao_pr/2577 http://digitalcommons.calpoly.edu/pao_pr/2577 Tue, 03 Nov 2009 19:07:30 PST Public Affairs Office, California Polytechnic State University - San Luis Obispo http://digitalcommons.calpoly.edu/pao_pr/2576 http://digitalcommons.calpoly.edu/pao_pr/2576 Tue, 03 Nov 2009 19:07:24 PST Public Affairs Office, California Polytechnic State University - San Luis Obispo http://digitalcommons.calpoly.edu/pao_rpt/232 http://digitalcommons.calpoly.edu/pao_rpt/232 Tue, 03 Nov 2009 15:06:58 PST Public Affairs Office, California Polytechnic State University - San Luis Obispo http://digitalcommons.calpoly.edu/theses/182 http://digitalcommons.calpoly.edu/theses/182 Tue, 03 Nov 2009 14:51:14 PST Model eliciting activities are assignments which require students to develop models to describe realistic situations. Every MEA follows six principles: model-construction, reality, self-assessment, model documentation, generalizability, and effective prototype. The six principles provide a solid guideline in which instructors can develop more MEAs, which can then be shared and used among several participating universities. Under NSF CCLI Grant #0717595, Cal Poly is currently developing Model Eliciting Activities for the subject of Mechanical Engineering. This report documents the undertakings to implement and enhance two Model Eliciting Activities (MEAs) into the Cal Poly curriculum. Specifically, the development of the Vehicle Accident Reconstruction (VAR) MEA and the Catapult MEA will be covered in detail. The VAR MEA was a project assigned in ME212 "Engineering Dynamics," which required students to apply momentum principles to a two-vehicle collision. Because of the heavy development time experienced by the MEA research team, a MatLab program which accepted user inputs via a graphical user interface (GUI) was developed. This GUI solved for initial velocities during two-vehicle collisions by applying appropriate momentum and work-energy principles. With this program, instructors can more easily develop crash scenarios, as well as check student work.The Catapult MEA was also a project assigned to ME212 students. It required them to analyze the launch trajectory of an actual scaled catapult using angular motion and work-energy principles. This scaled-catapult was instrumented with one ADXL278 dual-axis accelerometer and four CEA-06-240UZ-120 strain gages. This instrumentation allowed for the experimental data acquisition of the catapult angular velocity, acceleration, and strains. By postprocessing this experimental data using a MatLab program, the experimental results can then be compared to theoretical results.The overall goal for the VAR MEA GUI programming was to reduce instructor workload in order to promote usage the MEA through a broader range of universities. The goal of the Catapult instrumentation was to provide students with actual experimental data, which could then be used to confirm their theoretical model. The system was set up so that they could easily record their own experimental data for each catapult launch. Lawrence H. Fong http://digitalcommons.calpoly.edu/pao_rpt/231 http://digitalcommons.calpoly.edu/pao_rpt/231 Tue, 03 Nov 2009 14:44:58 PST Public Affairs Office, California Polytechnic State University - San Luis Obispo http://digitalcommons.calpoly.edu/pao_rpt/230 http://digitalcommons.calpoly.edu/pao_rpt/230 Tue, 03 Nov 2009 14:34:14 PST Public Affairs Office, California Polytechnic State University - San Luis Obispo http://digitalcommons.calpoly.edu/pao_rpt/229 http://digitalcommons.calpoly.edu/pao_rpt/229 Tue, 03 Nov 2009 14:29:10 PST Public Affairs Office, California Polytechnic State University - San Luis Obispo http://digitalcommons.calpoly.edu/theses/181 http://digitalcommons.calpoly.edu/theses/181 Tue, 03 Nov 2009 14:25:39 PST This thesis investigates a parametric study of a flat plate floor system designed using post-tensioning. The load balanced by the post-tensioning, the slab depth, and the strength of concrete were varied to create the parametric study of a hotel/condominium grid layout. In order to perform the parametric study, research was conducted on the development of post-tensioning, methods of analysis for two-way slab design, and post-tensioning methods of analysis. Design was conducted by hand through a series of Excel spreadsheets and compared to results found using the computer analysis program, ADAPT-PT. The designs found in the parametric study were then used to perform a cost analysis across ten cities in the United States: Atlanta, Boston, Chicago, Denver, Houston, Los Angeles, Miami, Phoenix, San Francisco, and Seattle. The designs from the hand analysis and the ADAPT-PT model provided similar results for the post-tensioning, and both methods provide an adequate design. The use of ADAPT-PT is recommended because of its ease of use and quick calculation capabilities. The designs of the hand analysis were quantified and along with unit prices gathered from contractors and suppliers the cost analysis found that the design with 100% of the dead load balanced provided the least expensive solution for all the cities, and the design using a 6000 psi strength concrete provide the most expensive solution for all cities. The least expensive slab design was $9.02 per square foot in Atlanta, Georgia, and the most expensive slab design was $24.96 per square foot in Miami, Florida. A more rigorous parametric study in the future may provide a better optimization for the hotel/condominium slab investigated as the parametric study of this thesis found costs which varied by less than 10% between the most expensive and least expensive slabs in the ten cities. Gaelyn B. Krauser http://digitalcommons.calpoly.edu/constructioninnovator/vol2/iss1/1 http://digitalcommons.calpoly.edu/constructioninnovator/vol2/iss1/1 Tue, 03 Nov 2009 14:18:06 PST Construction Management Department http://digitalcommons.calpoly.edu/constructioninnovator/vol1/iss1/1 http://digitalcommons.calpoly.edu/constructioninnovator/vol1/iss1/1 Tue, 03 Nov 2009 14:07:34 PST Construction Management Department http://digitalcommons.calpoly.edu/cmgt_fac/2 http://digitalcommons.calpoly.edu/cmgt_fac/2 Tue, 03 Nov 2009 13:29:02 PST Construction Management Department http://digitalcommons.calpoly.edu/cmgt_fac/1 http://digitalcommons.calpoly.edu/cmgt_fac/1 Tue, 03 Nov 2009 13:27:12 PST Construction Management Department http://digitalcommons.calpoly.edu/theses/180 http://digitalcommons.calpoly.edu/theses/180 Tue, 03 Nov 2009 08:38:08 PST Vitamin A metabolites and retinoids may slow the progression of breast cancer and elicit anti-neoplastic properties similar to those of omega-3 fatty acids. Studies using animal models show a decrease in the incidence, growth and metastisis of mammary tumors in the presence of specific fatty acids. This effect is also seen with use of retinoids, specifically all-trans retinoic acid (AtRA). Thus, fatty acids may also alter retinoid homeostasis in mammary carcinoma cells (MCF-7s). The potential for inter/co dependency among fatty acids and retinoids is considerable, and here it has been hypothesized that a decrease in cancer progression will occur in the presence of both compounds. MCF-7's were seeded in a 48 well plate at 5,000 cells per well. After 24 hr, cells were treated with either 1 µM AtRA alone, fatty acids alone, or AtRA + fatty acids. Fatty acid treatments (Linoleic, and Linolenic) were administered at 2.5 uM concentrations. Each fatty acid treatment was also combined with 1 µM AtRA to determine if there is a synergistic effect on slowing cell growth. Both culture media and treatments were changed at 24 hour intervals over a 3 day trial. When compared to the controls, cells treated with 1 µM AtRA or 2.5 µM Linolenic acid both inhibited cell growth. Interestingly, when combined with Linolenic acid, AtRA treatment resulted in a significant (nearly 50%) additional growth inhibition when compared to treatment with AtRA alone. Our results suggest that AtRA and Linolenic acid have a inter/co dependency that significantly inhibits breast cancer cell growth in vitro by 73.4 % compared to control, and 49.7% compared to AtRA alone over 72 hours. We conclude that AtRA and linolenic acid have a combined effect in breast cancer cell proliferation in-vitro and their role in dietary prevention warrants further investigation. David A. Brown http://digitalcommons.calpoly.edu/pao_pr/2575 http://digitalcommons.calpoly.edu/pao_pr/2575 Mon, 02 Nov 2009 18:03:57 PST Public Affairs Office, California Polytechnic State University - San Luis Obispo http://digitalcommons.calpoly.edu/pao_pr/2574 http://digitalcommons.calpoly.edu/pao_pr/2574 Mon, 02 Nov 2009 18:03:51 PST Public Affairs Office, California Polytechnic State University - San Luis Obispo http://digitalcommons.calpoly.edu/crp_fac/28 http://digitalcommons.calpoly.edu/crp_fac/28 Mon, 02 Nov 2009 16:47:36 PST Hemalata C. Dandekar http://digitalcommons.calpoly.edu/crp_fac/27 http://digitalcommons.calpoly.edu/crp_fac/27 Mon, 02 Nov 2009 16:47:35 PST The need to internationalize planning education is increasingly apparent, but planning programs in the United States have varying capabilities and resources to incorporate an international dimension in their curriculum. Offering a multiuniversity studio and study abroad course in Mexico, in conjunction with the World Congress in 2006, provided an opportunity to collaboratively address this need. The synergies that accrued are worth considering. An argument is made for adopting similar studio efforts as an integral component of future World Planning Congresses. Hemalata C. Dandekar http://digitalcommons.calpoly.edu/pao_restricted/16 http://digitalcommons.calpoly.edu/pao_restricted/16 Mon, 02 Nov 2009 15:08:02 PST Chuck Liddell http://digitalcommons.calpoly.edu/pao_restricted/15 http://digitalcommons.calpoly.edu/pao_restricted/15 Mon, 02 Nov 2009 15:04:30 PST Greg Chamitoff http://digitalcommons.calpoly.edu/pao_rpt/228 http://digitalcommons.calpoly.edu/pao_rpt/228 Mon, 02 Nov 2009 15:04:13 PST Public Affairs Office, California Polytechnic State University - San Luis Obispo http://digitalcommons.calpoly.edu/pao_restricted/14 http://digitalcommons.calpoly.edu/pao_restricted/14 Mon, 02 Nov 2009 15:03:38 PST Weird Al Yankovic in the Cal Poly KCPR Studio http://digitalcommons.calpoly.edu/pao_restricted/13 http://digitalcommons.calpoly.edu/pao_restricted/13 Mon, 02 Nov 2009 14:59:24 PST Lawrence Kelley, Cal Poly Vice President of Administration and Finance http://digitalcommons.calpoly.edu/pao_rpt/227 http://digitalcommons.calpoly.edu/pao_rpt/227 Mon, 02 Nov 2009 14:56:54 PST Public Affairs Office, California Polytechnic State University - San Luis Obispo http://digitalcommons.calpoly.edu/pao_restricted/12 http://digitalcommons.calpoly.edu/pao_restricted/12 Mon, 02 Nov 2009 14:56:10 PST Bill and Jean Lane http://digitalcommons.calpoly.edu/pao_rpt/226 http://digitalcommons.calpoly.edu/pao_rpt/226 Mon, 02 Nov 2009 14:47:10 PST Public Affairs Office, California Polytechnic State University - San Luis Obispo http://digitalcommons.calpoly.edu/pao_restricted/11 http://digitalcommons.calpoly.edu/pao_restricted/11 Mon, 02 Nov 2009 14:44:48 PST Cal Poly President Warren J. Baker http://digitalcommons.calpoly.edu/pao_img/19 http://digitalcommons.calpoly.edu/pao_img/19 Mon, 02 Nov 2009 14:04:21 PST Mustang Memorial Plaza http://digitalcommons.calpoly.edu/pao_img/18 http://digitalcommons.calpoly.edu/pao_img/18 Mon, 02 Nov 2009 14:02:32 PST Cal Poly Banners http://digitalcommons.calpoly.edu/pao_img/17 http://digitalcommons.calpoly.edu/pao_img/17 Mon, 02 Nov 2009 14:01:08 PST Arboretum on the Cal Poly campus http://digitalcommons.calpoly.edu/pao_img/16 http://digitalcommons.calpoly.edu/pao_img/16 Mon, 02 Nov 2009 14:00:52 PST Vineyard on the Cal Poly Campus http://digitalcommons.calpoly.edu/pao_img/15 http://digitalcommons.calpoly.edu/pao_img/15 Mon, 02 Nov 2009 13:56:57 PST Cal Poly Football http://digitalcommons.calpoly.edu/pao_img/14 http://digitalcommons.calpoly.edu/pao_img/14 Mon, 02 Nov 2009 13:55:05 PST Front of Engineering IV Building http://digitalcommons.calpoly.edu/pao_img/13 http://digitalcommons.calpoly.edu/pao_img/13 Mon, 02 Nov 2009 13:51:00 PST Aerial Shot of the Cal Poly, San Luis Obispo Campus