Uplift models provide a solution to the problem of isolating marketing effect campaign. For customer churn reduction, uplift are used identify customers who likely respond positively retention activity, only if targeted, and avoid wasting resources on that very switch another company. In practice, performance is measured by Qini coefficient. We introduce Qini-based regression model analyze larg...

Orographic precipitation has a large impact on channel morphology and rock uplift via a positive feedback to erosion. We show that in the Eastern Cordillera of Bolivia, channel concavities reach their highest values where annual precipitation increases in the downstream direction, exceeding 3000 mm. The steepest channels are upstream of this zone of high concavity, where precipitation rates are...

The history of Eastern African hominids has been linked to a progressive increase of open grassland during the past 8 million years. This trend was explained by global climatic processes, which do not account for the massive uplift of eastern African topography that occurred during this period. Atmosphere and biosphere simulations quantify the role played by these tectonic events. The reduced t...

[1] Developing a quantitative understanding of the factors that control the rate of river incision into bedrock is critical to studies of landscape evolution and the linkages between climate, erosion, and tectonics. Current models of long-term river network incision differ significantly in their treatment of the role of sediment flux. We analyze the implications of various sediment-fluxdependen...

Based on geological information of the Fengman dam, the seepage flow of the dam is analyzed. There are many different affecting factors on seepage problem, for example: the effect of the parameter of concrete, cut-off wall, the permeability coefficient of cut-off wall, drainage hole and grout curtains etc. On the basis of the research, the seepage control mechanism and effectiveness of the seep...

Introduction: Lunar concentric craters represent an anomalous type of impact structures on the Moon [1]. The concentric crater Archytas G in mare Frigoris has first been catalogued as a concentric crater in [2]. According to Fig. 1, it is located on top of a large lunar intrusive dome, termed Ar1 in [3]. The dome Ar1 is the only lunar dome known to date with a concentric crater on its surface. ...

Ground cylindrical steel fluid storage tanks are widely used in different industries. Regarding the significance of these structures, it is important to establish their proper performance in earthquakes by evaluating their seismic performance. The present study examines the seismic behavior of an unanchored fluid storage system via ABAQUS after validation using an experimental model. Next, the ...