Evaluation of lighting conditions in portable classrooms and analysis for alternative daylighting systems

Lighting conditions in multiple classrooms in central Texas were assessed, and the feasibility of improving portable classroom daylighting via alternative daylighting systems was also evaluated. Results indicate that surveyed portable classrooms generally provide sufficient levels of light with artificial lighting systems, but have less uniform lighting distribution than permanent classrooms. To evaluate the daylight availability in portable classrooms, a model was developed and verified using field data. Climate-based daylighting simulation was performed using DIVA for Rhino, which uses Radiance and DAYSIM as simulation engines. Results from the annual daylighting analysis suggest that limited amounts of daylight were available in portable classrooms over the course of a year. In order to assess the feasibility of improving portable classroom daylighting conditions, parametric studies were completed to investigate how different factors affect the levels of light in classrooms. Simulation results suggest that increasing window area and higher window placement allow more light into the classroom. Different external shading systems also affect the indoor daylight level. However, the impact of other factors, including building orientation, ceiling-to-floor height, and classroom length-to-width ratio is minimal. While changing the window systems for an existing portable building can require a large construction effort and financial commitment, retrofitting with tubular skylights is a more approachable option. Daylighting analysis shows eight 356-mm (14-inch) diameter tubular skylights can provide the portable classroom with a sufficient light level for more than 60% of occupied hours. When daylighting alone cannot provide sufficient light, lighting control will successfully combine a daylighting system and an artificial lighting system to provide an adequate lighting environment.Civil, Architectural, and Environmental Engineerin

Aspects of the Requirements of ISO 15263.4 and the Design and Development of Bicycle Racks

There is currently interest in developing safety standards for bicycle racks for cars. A draft international standard (ISO 15263.4) has been developed. However, there have been many objections to the proposals and a redraft has been made. This study aims to investigate a part of the standard that involves performing deflection tests on bicycle racks. The research evaluates the deflection tests, considering how representative and repeatable they are. The results are compared to predictions made using FEA software and calculations of stress and deflection. The required deflection tests were performed on a Pendle Bike Rack. The results show that the Pendle TBM 3 rack would pass the deflection test part of the draft ISO 15263.4 standard. It is demonstrated that by measuring strain with strain gauges and calculating the stress, the rack operates within 35% of the ultimate tensile strength of the material. The effectiveness of FEA software is demonstrated by achieving similar results from FEA simulations to the experimental data. The application of FEA is explored, using it to simulate changes to the design of the rack to make it stronger and lighter. The discussion shows that the draft ISO 15263.4 standard needs further development. The draft ISO 15263.4 standard doesn't address issues of fatigue failure, could focus more on ensuring safe use of the product and is more suited to certain types of bicycle rack. In this thesis it is suggested that further drafts of the ISO 16263.4 standard should incorporate different testing schedules for different types of bicycle rack. Tests for racks that are bolted onto a tow ball should differ from tests for racks that strap onto the tailgate

Engineering Feasibility Study of Fire Island as a Location for a Future Correctional Facility: Final Report

The "Legal Factors" section appearing on page 38–50 of this report was prepared by Stephen Conn of the UAA Justice Center, School of Justice. / This report is part of the Fire Island Prison Feasibility Study, a project conducted jointly by the School of Justice and School of Engineering at University of Alaska, Anchorage under contract to the Alaska Department of Corrections. The project undertook to assess the feasibility of locating a correctional facility on a 4,240 acre tract of land on Fire Island, which lies in Upper Cook Inlet about three miles off Point Campbell within the Municipality of Anchorage. The project was divided into three major phases: (1) an assessment of future bed space needs of the Alaska Department of Corrections; (2) an evaluation of the physical site and cost estimates for prison construction and operation; and (3) a public opinion survey and open discussion.This report provides the final results of an engineering assessment and evaluation of a 4,240 acre tract of land on Fire Island for a proposed correctional facility. Fire Island is an island in Upper Cook Inlet about three miles off Point Campbell within the Municipality of Anchorage. The report describes climatic and geophysical factors on the island including temperature, precipitation, wind, topography, geology and soils, seismicity, slide potential, and coastal erosion; facility site evaluation including suitability of soils for building foundations, transportation and site access, utility availability (water, wastewater and solid waste disposal, electricity, and communications), and legal factors (constitutional issues, prison security, and access to prisons); and estimated construction costs. Comparisons with alternative prison sites at Palmer and Goose Bay, both located within the Matanuska-Susitna Borough, are provided. A bibliography of land and facility studies of Fire Island is included.Alaska Department of Corrections1. Executive Summary / 2. Introduction / 3 . Location of the Fire Island Site / 4. Engineering Feasibility of Fire Island as a Potential Prison Site / 5. Estimated Construction Costs for Correctional Facilities / 6. Benefits and Liabilities of Alternative Sites / 7. Summary and Conclusions / References / Bibliography of Fire Island Land and Facilities Studie

Engineering News, Fall 2019

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Engineering News, Summer 2018

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Fire Island Feasibility Study: Summary Report — Final Report

This report is part of the Fire Island Prison Feasibility Study, a project conducted jointly by the School of Justice and School of Engineering at University of Alaska, Anchorage under contract to the Alaska Department of Corrections. The project undertook to assess the feasibility of locating a correctional facility on a 4,240 acre tract of land on Fire Island, which lies in Upper Cook Inlet about three miles off Point Campbell within the Municipality of Anchorage. The project was divided into three major phases: (1) an assessment of future bed space needs of the Alaska Department of Corrections; (2) an evaluation of the physical site and cost estimates for prison construction and operation; and (3) a public opinion survey and open discussion. / The three reports summarized here include: Alaska Correctional Requirements: A Forecast of Prison Population through the Year 2000 by Allan R. Barnes and Richard McCleary (1986); Engineering Feasibility Study of Fire Island as a Location for a Future Correctional Facility: Final Report edited by David C. Junge (1986); Fire Island Public Opinion Survey: Summary of Findings by Allan R. Barnes (1986).This document summarizes the findings the Fire Island Prison Feasibility Study, undertaken to assess the feasibility of locating a correctional facility on Fire Island in the Municipality of Anchorage. The three reports summarized here covered the three major phases of the study: (1) an assessment of future bed space needs of the Alaska Department of Corrections; (2) an evaluation of the physical site and cost estimates for prison construction and operation; and (3) a public opinion survey and open discussion.Acknowledgements / Purpose and Scope: Phase 1: An Assessment of Future Bed Space Needs; Phase 2: Site Assessment and Cost Estimates; Phase 3: Public Involvement / Conclusio

Public Perceptions of the Midwest’s Pavements - Wisconsin - Phase I (Winter Ride)

The Wisconsin Winter Ride Survey was designed to determine the extent to which drivers were tolerant of the rougher ride of pavements on rural two-lane highways in the winter. Survey objectives, as such, were centered around this primary question of winter ride tolerance. A telephone survey was conducted by the Wisconsin Survey Research Laboratory (WSRL), which added questions to its quarterly Wisconsin Opinion Poll for the data collection period of January 15 to March 15, 1997. A similar survey focusing only on the topic of winter driving on rural highways was conducted in Minnesota during the same period. Random digit dial samples were drawn for both states according to accepted sampling procedure. The survey data set provided by WSRL included 417 respondents. Conclusions derived from the Wisconsin Winter Ride Survey included the following. Overall, Wisconsin respondents were predominately tolerant of the pavement’s potentially rougher ride in winter. Three-fourths of the 173 respondents who had noticed a change in the pavement indicated that they were more tolerant of the rough ride in winter than they would be the rest of the year. The extent to which motorists noticed changes in the pavement was influenced by the driving and vehicle characteristics. Respondents who drove more frequently on rural two-lane highways and those driving trucks, full-size vans or sport utility vehicles were more 2 likely to notice changes. The latter finding suggests that differences in suspension and ride entered in for respondents driving cars versus those driving trucks. It follows, therefore, that noticing pavement changes generally increased as ratings of the vehicle’s ride quality declined

Engineering at San Jose State University, Fall 2012

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Engineering at San Jose State University, Spring 2018

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International Conference on Irrigation Management Transfer, Wuhan, China, 20-24 September 1994. Vol.3. Draft conference papers.

Irrigation managementIrrigation systemsFarmer participationPrivatizationSocial aspectsFarmers' associationsWater users' associationsTrainingPolicyFarmer participationEconomic aspectsFarmer managed irrigation systemsIrrigation programsRehabilitationWater resource management