1,472 research outputs found

    Figurehead

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    Poem about ship\u27s figurehead viewed in museum in Calais, Maine

    A heuristic algorithm for the multi-terminal vehicle dispatch problem using the modified sweep algorithm

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    A heuristic algorithm is developed for solving the multi-terminal vehicle dispatch problem. The demand points are first assigned to terminals using a scheme that minimizes the cost of each assignment. Single-terminal vehicle dispatch problems are then solved at each terminal using a heuristic procedure, called the Sweep Algorithm. A sequence of trial reassignments are then attempted in order to obtain further improvements in the overall solution. Eleven multi-terminal vehicle dispatch problems are presented and their solutions, derived by this procedure, are given. Several changes are also proposed for the Sweep Algorithm in order to improve the solutions obtained and to decrease the computing time required. The effects of using different traveling salesman algorithms in the Sweep Algorithm are studied. Two recently published traveling salesman procedures as well as the one previously used in the Sweep Algorithm are compared. One of these new approaches, the Lin-Kernighan algorithm, is found to perform significantly better for routes with a large number of demand points, than the method previously used. Single-terminal vehicle dispatch problems are solved, and comparisons with the results of other single-terminal algorithms are presented --Abstract, page ii

    Cereals For Forage Production At Point MacKenzie

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    Research history on the soils in the Point MacKenzie project area is limited when compared to many other agricultural areas in Alaska. However, four years of soil fertility and forage production data has been compiled. The basis for information included here is research carried out on the research tract at Point MacKenzie by the staff at the Palmer Research Center. This information coupled with many years of breeding and crop selection data from the nearby Matanuska Valley, make preliminary recommendations possible.With Contributions from: W. W. Mitchell, R. L. Taylor, C. L. Ping, G. J. Michaelson and M. W. Herlugson, Agricultural Experiment Station, University of Alask

    Food Habits of the Young Gizzard Shad

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    In his 1920 paper, L. H. Tiffany states that the gizzard shad (Dorosoma cepedianum) offers for the game fish one of the most direct routes possible from manufacturer to consumer. In view of this conclusion, the research reported in this paper was undertaken for the purpose of determining (a) what foods are ingested by gizzard shad, and (b) if there is any correlation between food ingested and that available in greatest supply in the natural habitat. The study was centered in an area of the Mississippi River in the vicinity of Winona, Minnesota. Some additional work was done about thirty-five miles north of Winona in Lake Pepin, a widening of the Mississippi River

    Considering educational planning

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    This article is written for superintendents who wish to assess their planning efforts

    Wind loads on ground-based telescopes

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    One of the factors that can influence the performance of large optical telescopes is the vibration of the telescope structure due to unsteady wind inside the telescope enclosure. Estimating the resulting degradation in image quality has been difficult because of the relatively poor understanding of the flow characteristics. Significant progress has recently been made, informed by measurements in existing observatories, wind-tunnel tests, and computational fluid dynamic analyses. We combine the information from these sources to summarize the relevant wind characteristics and enable a model of the dynamic wind loads on a telescope structure within an enclosure. The amplitude, temporal spectrum, and spatial distribution of wind disturbances are defined as a function of relevant design parameters, providing a significant improvement in our understanding of an important design issue

    Does Female Directorship on Independent Audit Committees Constrain Earnings Management?

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    This study examines whether the gender of the directors on fully independent audit committees affects the ability of the committees in constraining earnings management and thus their effectiveness in overseeing the financial reporting process. Using a sample of 525 firm-year observations over the period 2003 to 2005, we are unable to identify an association between the proportion of female directors on audit committees and the extent of earnings management
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