1,441 research outputs found

    The College Station Residential Energy Compliance Code

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    The City of College Station, Texas adopted a new residential Energy Compliance Code in January, 1988. The code, which strengthens compliance requirements in several areas, has received broadly based support and acceptance from all major constituent groups. It is less than one-fourth the length of the code it replaced, and compliance is greatly simplified through use of a check-list compliance path supplemented by point system and energy analysis paths. Results of air leakage measurements used to justify the stronger infiltration requirements of the code are reported. The process used to develop consensus support and key features of the code are described

    Feasibility study of the solar scientific instruments for Spacelab/Orbiter

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    The feasibility and economics of mounting and operating a set of solar scientific instruments in the backup Skylab Apollo Telescope Mount (ATM) hardware was evaluated. The instruments used as the study test payload and integrated into the ATM were: the Solar EUV Telescope/Spectrometer; the Solar Active Region Observing Telescope; and the Lyman Alpha White Light Coronagraph. The backup ATM hardware consists of a central cruciform structure, called the "SPAR', a "Sun End Canister' and a "Multiple Docking Adapter End Canister'. Basically, the ATM hardware and software provides a structural interface for the instruments; a closely controlled thermal environment; and a very accurate attitude and pointing control capability. The hardware is an identical set to the hardware that flow on Skylab

    Determining the Effectiveness of Graphic-aided Dynamic Message Signs in Work Zone

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    Portable changeable message signs (PCMSs) have been employed in highway work zones as an innovative temporary traffic control (TTC) device in the United Stated for many years. The traditional message format on a PCMS is text-based, which has been found to have several limitations in recent studies, such as confusing drivers and delaying their responses during driving, being difficult to read for older drivers and non-English-speaking drivers, and having a short range of legibility. The use of graphic-aided messages on PCMSs has many advantages over text-based PCMSs based on a number of previous laboratory simulation experiments. This research project used field experiments and driver surveys to determine the effectiveness of a graphic-aided PCMS on reducing vehicle speed and drivers' acceptance of utilizing a graphic-aided PCMS in the upstream of a one-lane two-way rural highway work zone. Field experiment were conducted to compare the effectiveness of text PCMS, graphic-aided PCMS, and graphic PCMS on reducing vehicle speed in a highway work zone in Kansas , and to develop regression models of the relationship between mean vehicle speed and distance under three PCMS conditions. Driver surveys were conducted to evaluate drivers’ opinions on the implementation of a graphicaided PCMS in the highway work zone. The findings showed that 1) using a text, a graphic-aided, and a graphic PCMS resulted in a mean vehicle speed reduction of 13%, 10%, and 17%, respectively; 2) using a graphic-aided PCMS reduced mean vehicle speed more effectively than using a text PCMS from 1,475 ft to 1,000 ft in the upstream of a work zone; using a graphic PCMS reduced mean vehicle speed more effectively than using a text PCMS from 1,475 ft in the upstream of the work zone to the location of the second TTC sign (W20-4 sign); 3) the majority of drivers understood the work zone and flagger graphics and believed the graphics drew their attention more to the work zone traffic conditions; and 4) more drivers preferred the information to be presented in the graphic-aided and graphic formats if the graphic-aided and graphic PCMSs were available

    Using Cone Index Data to Explain Yield Variation Within a Field

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    Rosana G. Moreira, Editor-in-Chief; Texas A&M UniversityThis is a Technical Paper from International Commission of Agricultural Engineering (CIGR, Commission Internationale du Genie Rural) E-Journal Volume 4 (2002): N. Isaac, R. Taylor, S. Staggenborg, M. Schrock, and D. Leikam. Using Cone Index Data to Explain Yield Variation Within a Field. Vol. IV. December 2002

    Modeling Truck Speed in the Upstream of One-lane Two-way Highway Work Zones: Implications on Reducing Truck-Related Crashes in Work Zones

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    Truck-related crashes constitute a major safety concern for government agencies, the construction industry, and the traveling public. Due to the rising needs in highway maintenance and construction, the number of work zones is increasing throughout the United States, while at the same time freight movement using trucks is also increasing nationwide. Developing effective safety countermeasures to reduce the truck-related crashes is a major challenge in front of the government agencies and the construction industry. The main objectives of this research project are to discover truck-related crash characteristics and to model the truck speeds in the upstream of one-lane two-way rural highway work zones. Work zones on two-lane highway are particularly hazardous for trucks due to the disruption of regular traffic flow and restrictive geometry. The developed models can be utilized to discover possible associations between work zone design variables and truck speeds with the purpose of reducing truck-related crash risks. As a result, government agencies and the construction industry can apply the findings of this project to improve work zone design and mitigate the crash risks in work zones

    The College Station Residential Energy Compliance Code

    Get PDF
    The City of College Station, Texas adopted a new residential Energy Compliance Code in January, 1988. The code, which strengthens compliance requirements in several areas, has received broadly based support and acceptance from all major constituent groups. It is less than one-fourth the length of the code it replaced, and compliance is greatly simplified through use of a check-list compliance path supplemented by point system and energy analysis paths. Results of air leakage measurements used to justify the stronger infiltration requirements of the code are reported. The process used to develop consensus support and key features of the code are described

    Developing a Sustainable Freight Transportation Framework with the Consideration of Improving Safety and Minimizing Carbon Emissions

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    Despite the difficulties of the American economy in recent years the transportation sector continues to expand. Freight transportation alone has been projected to increase enormously even if the economy as a whole only manages a very moderate growth. Not only does freight transportation use a large percentage of resources but it contributes significantly to America’s share of carbon emissions and affects the safety of the transportation system and all its users. These problems are only expected to increase as the volume of freight transportation is already reaching the limit of the American transportation infrastructure’s capacity and demand continues to increase. The primary objective of this research was to compile a list of technologies and practices that should be included in the sustainable freight transportation frameworks of government agencies and commercial fleets to reduce their carbon footprint and increase their safety by providing recommendations on promising legislation, research, technologies, and practices. Data was gathered through a literature review of available materials and a survey of the state Departments of Transportation. The success of this research project provides the needed knowledge for the development of a sustainable freight transportation framework

    Centering Work: Integration and Diffusion of Workforce Development within the U.S. Manufacturing Extension Network

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    As the U.S. economy rebounds from the COVID-19 pandemic, strategies that promote long-term transformation toward high-quality jobs will be critical. This includes workplace-improving interventions that enable employers to upgrade existing jobs, often while enhancing their own competitive position. This paper focuses on the Manufacturing Extension Partnership, a national network of federally funded centers that support small and medium-sized manufacturing firms. We document the range of workforce- and workplace-enhancing strategies that MEP centers have adopted since the network’s inception in the mid-1990s. While workforce development is unevenly implemented across today’s MEP network, leading centers within the network are devising transformative strategies that shape underlying business practices in ways that can improve the quality of front-line manufacturing jobs. The pandemic recovery, along with federal commitment to reenergize domestic supply chains, presents an opportunity to establish NIST-MEP as a national workforce-development leader while also strengthening localized institutional partnerships to center that effort on inclusive economic development and recovery

    How the Manufacturing Extension Partnership Can Anchor U.S. Workforce Development

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