This paper presents a new approach of landslides zonation hazard studies, based on an integrated study of structural data along with geomorphological and external factors, in a hilly regions of Brazil, covered by a tropical humid rain-forest, called Serra do Mar. The Serra do Mar consists of a hilly region along the east coast of Brazil, with high slopes and many geological structures in a gnei...

A theoretical investigation of local scour downstream of grade-control structures based on two-dimensional jet diffusion and particle stability is experimentally verified. Turbulent jet diffusion reduces fluid velocity near the bed particles and equilibrium scour is obtained when noncohesive bed particles cannot be removed from the scour hole. Equilibrium scour depth is written as a function of...

The bed bug, Cimex lectularius L., like other bed bug species, is difÞcult to visually locate because it is cryptic. Detector dogs are useful for locating bed bugs because they use olfaction rather than vision. Dogs were trained to detect the bed bug (as few as one adult male or female) and viable bed bug eggs (Þve, collected5Ð6dafter feeding)byusingamodiÞed foodandverbal reward system.Their ef...

The paper presents a two-dimensional unsteady flow model based on the finite volume method combined with anapproximate Riemann solver to solve the governing equations on an unstructured triangular grid. A major feature of the model is that it isconservative, can deal with wetting and drying processes, resolve shocks and can handle complex geometry. The model is applied to acase stud...

classification and utilization of lands based on their capability are necessary for sustainable land use management. the purpose of this study was to identify and grade the effective qualities on the rainfed farming in the roin area, north khorasan province, during the year of 2011. based on field observations and literature review the land qualities including climate, rooting conditions, moist...

This paper presents a systematic analysis of the hydraulic flushing capacity stored volume water to remove sediments. is based on 90 laboratory experiments in which sediment evacuated was measured for varying initial volumes water, three bed slopes, and sizes. The consisted rapid emptying reservoir by means suddenly opening tilting gate downstream. produced an accelerated flow eroded mobile res...