267 research outputs found

    Preservation of Web Resources: The JISC PoWR Project

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    This paper describes the work of the JISC-funded PoWR (Preservation Of Web Resources) project which is developing a handbook on best practices and advice aimed at UK higher and further educational institutions for the preservation of Web sites and Web resources. The paper summarises the challenges institutions face in preserving Web resources, describes the workshops organized by the project in order to identify the challenges and identify appropriate best practices, and outlines areas in which further work is required

    Spectroscopy and multivariate analyses applications related to solid rocket nozzle bondline

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    Chemical composition and molecular orientation define the properties of materials. Information related to chemical composition and molecular configuration is obtained by various forms of spectroscopy. Software algorithms developed for multivariate analyses, expert systems, and Artificial Intelligence (AI) are used to conduct repetitive operations. The techniques are believed to be of particular significance toward achieving TQM objectives. The objective was to obtain information related to the quality of the bondline in the solid rocket motor, SRM, nozzle. Hysol 934 NA, a room temperature curing epoxide resin, is used as the bonding agent. A good bond requires that the adhesive be placed on a properly prepared metal surface, the adhesives Part A and B be mixed in appropriate ratio from material within shelf life specifications. Spectroscopic data was obtained for surfaces prepared according to specifications, contaminated metal surfaces, samples of the epoxide adhesive at times that represent shelf aging from 3 months to 2 years, several mix ratio of A to B, and curing material. Temperature was found to be a significant factor. The study concentrated on pot life and mix ratio

    Real-time quality assurance testing using photonic techniques: Application to iodine water system

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    A feasibility study of the use of inspection systems incorporating photonic sensors and multivariate analyses to provide an instrumentation system that in real-time assures quality and that the system in control has been conducted. A system is in control when the near future of the product quality is predictable. Off-line chemical analyses can be used for a chemical process when slow kinetics allows time to take a sample to the laboratory and the system provides a recovery mechanism that returns the system to statistical control without intervention of the operator. The objective for this study has been the implementation of do-it-right-the-first-time and just-in-time philosophies. The Environment Control and Life Support Systems (ECLSS) water reclamation system that adds iodine for biocidal control is an ideal candidate for the study and implementation of do-it-right-the-first-time technologies

    Status of the Red Fox in Oklahoma and Comparison of 3 Furbearer Survey Techniques

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    This study was designed with two separate objectives: to determine the current status of the red fox in Oklahoma, and to compare 3 extensive survey methods for monitoring furbearer populations. Museum records, a mail survey to professional wildlife personnel and field observations were used to determine red fox status. Results of a farm operator mail survey and 2 variations of a scent station survey were analyzed to meet the second objective. The 2 chapters of this thesis were prepared using the formats of 2 scientific journals. Each chapter is complete and requires no supportive information. The format of Chapter I meets the specifications of The Southwestern Naturalist. Chapter II follows the format of Wildlife Society Bulletin.Wildlife Ecolog

    The Role of Service-Learning on the Retention of First-Year Students to Second Year

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    Retention of college students is a priority of all colleges and universities. This research investigated whether or not student enrollment in a service-learning course in the fall semester of college was related to (a) intentions to stay on that campus, based on self-reports at the end of the semester, and (b) reenrollment the following fall on that campus, based on reports from campus registrars the following fall. Enrollment in a service-learning course was related to intentions to continue at the same campus and this relationship was mediated by the higher quality of service-learning courses (vs. non service-learning courses). This relationship between service-learning and intentions to re-enroll at the same campus held even when pre-course intentions were covaried out. Re-enrollment at the same campus the following year was found to be related to enrollment in a service-learning course. This relationship was mediated by the higher quality of the service-learning courses (vs. non-service-learning courses) and greater intention to continue education at the campus, but these relationships did not persist after controlling for pre-course intentions
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