7,338 research outputs found

    Stability of Periodic, Traveling-Wave Solutions to the Capillary-Whitham Equation

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    Recently, the Whitham and capillary-Whitham equations were shown to accurately model the evolution of surface waves on shallow water. In order to gain a deeper understanding of these equations, we compute periodic, traveling-wave solutions to both and study their stability. We present plots of a representative sampling of solutions for a range of wavelengths, wave speeds, wave heights, and surface tension values. Finally, we discuss the role these parameters play in the stability of the solutions

    Resistojet research and development, phase ii second quarterly progress report, 1 oct. - 31 dec. 1964

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    Transient propulsion performance of 10 watt fast heating resistojet engin

    SUPERMARKET PATRONAGE: AN ANALYSIS OF CUSTOMER COUNTS AMONG OUTLETS WITHIN A GEOGRAPHIC AREA

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    As new supermarket management tools are introduced, the need for an improved understanding of store patronage is growing. Weekly customer counts for five supermarkets located in a Southeastern metropolitan area covering 261 weeks are analyzed. Descriptive statistics indicate that food shopper patterns vary by outlet. Regression equations are estimated for each location. Results point to store specific relationships. They indicate that evaluation of television and radio ads and double couponing can be quite involved.Consumer/Household Economics,

    FORECASTING ITEM MOVEMENT WITH SCAN DATA: BOX-JENKINS RESULTS

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    Preliminary forecasts using the Box-Jenkins methodology for supermarket scan data for ground beef and roast item movement are described. The functional form and the accuracy of the forecasts vary by product. Results suggest that further analyses incorporating price and advertising may increase the accuracy of the forecasts.Food Consumption/Nutrition/Food Safety, Marketing,

    FRESH VEGETABLE PRICE LINKAGE BETWEEN GROWER/SHIPPERS, WHOLESALERS AND RETAILERS

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    This study focused on the transmission of price adjustments between grower/shippers and wholesalers and between wholesale handlers and retailers of nine fresh vegetables (only the results associated with bell peppers are reported in this paper). Results among the nine vegetable products were not consistent with respect to the magnitude of adjustments or the time periods involved in the adjustments. In response to wholesale price changes, upward price adjustments at the retail level occur more quickly than do downward price adjustments. Price transmission relationships also varied among the vegetable products between the wholesaler and grower. Overall, the results indicate that factors in addition to changes in upstream prices are impacting retailers' and wholesalers' pricing decisions.Demand and Price Analysis,

    CpG island composition differences are a source of gene expression noise indicative of promoter responsiveness

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    We wish to thank Wolf Reik, Ferdinand von Meyenn and Aaron T. Lun for kindly donating single-cell gene expression data from human ESCs. The authors also wish to thank Sarah Thorpe and Christina Ernst for critical reading of the manuscript. Funding MDM was supported by the Wellcome Trust (grant 105045/Z/14/Z). JCM was supported by core funding from the European Molecular Biology Laboratory and from Cancer Research UK (award number 17197).Peer reviewe
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