The motion of a stone skimming over a water surface is considered. A simplified description of the collisional process of the stone with water is proposed. The maximum number of bounces is estimated by considering both the slowing down of the stone and its angular stability. The conditions for a successful throw are discussed. © 2003 American Association of Physics Teachers. @DOI: 10.1119/1.151...

2 DØ Data Tiers and Processing Chain 6 2.1 Reconstruction . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.1.1 Dsts and Thumbnails . . . . . . . . . . . . . . . . . . . 6 2.2 Post-tmb Processing — The Common Sample Group . . . . . 6 2.2.1 Fixing . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.2.2 Skimming . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.2.3 Common Object C...

In this study, experimental procedure and laboratory works have been conducted to investigate the energy loss rate on stepped spillway, using inclined steps together with end sill. To have a more elucidated investigation inclined steps with different slopes (Horizontal , 7, 10, and 12 degrees with respect to the horizon) and end sill with different thicknesses (5 and 10 mm) and heights (6, 8, 1...

The rising prices of pharmaceuticals have generated considerable, and often acrimonious, debate. Yet, there is little theoretical work or empirical evidence on pharmaceutical entry-pricing strategies or on the time paths of the prices of new entrants versus incumbents. This study explores the entry pricing strategies of pharmaceutical manufacturers. Previous theoretical models have considered a...

It has become all too clear that despite the ever-growing reams of available media, we face diminishing strategic returns from it unless we craft better tools that not only let us playback media but also get us quickly to media segments of most interest. Witness the everyday frustration of false positives when watching user-generated video content that, with appropriate insight, the user might ...