Many studies have been conducted on the characteristics of hydraulic jumps over horizontal basins. On sloping basins, however, few such studies have been performed so that the issue requires more investigation. A significant number of studies has also been conducted on basins with positive slopes but comparatively few have been carried out on basins with negative slopes. This study was carried ...

Mining developments in alpine coal mining areas result slow or rapid ground subsidence, which can lead to melting and collapse of permafrost. This paper integrated unmanned aerial vehicle (UAV) images satellite-based SAR interferometry monitor intensive surface subsidence during reclamation. Digital Surface Model (DSM) acquired from UAV was first used evaluate the changes reclamation scheme on ...

For an open pit mine, the rock slope stability is one of major significant challenges at every stage in operation. It became a concern from planning until mining closure. Mining activities research location have entered closure phase and produced final that consists 4 single slopes with overall height 65m angle 62° its not yet known. The actual has discontinuities which affect potential for fai...

We examine whether credit-spread curves, engendered by a mandatory subordinated-debt requirement for banks, would help predict bank risk. We extract the credit-spread curves each quarter for each bank in our sample, and analyze the information content of credit-spread slopes. We find that credit-spread slopes are significant predictors of future credit spreads. However, credit-spread slopes do ...

this paper presents an analytical model characterizing unsteady groundwater flow in an unconfined aquifer resting on a sloping impervious bed. the aquifer is in contact with a constant water level at one end. the other end is connected to a stream whose level is increasing form an initial level to a final level at a known exponentially decaying function of time. moreover, the aquifer is repleni...

We study straight-line drawings of graphs with few segments and few slopes. Optimal results are obtained for all trees. Tight bounds are obtained for outerplanar graphs, 2-trees, and planar 3-trees. We prove that every 3-connected plane graph on n vertices has a plane drawing with at most 5n/2 segments and at most 2n slopes. We prove that every cubic 3-connected plane graph has a plane drawing ...

Patterns of incorrect answering or “misconception-like” responses to scientific concept questions have been well documented. Here we investigate both response choices and response times to gain insight into the nature of misconception-like responses. In a series of experiments involving questions on graphs in which participants must compare the slopes of two points, we find that students answer...