We investigate the radial colour gradient and two-dimensional (2D) colour properties of 22 E+A galaxies with 5.5Å < Hδ EW < 8.5Å and 49 normal early-type galaxies as a control sample at a redshift of < 0.2 in the Second Data Release of the Sloan Digital Sky Survey. We found that a substantial number of E+A galaxies exhibit positive slopes of radial colour gradient (bluer gradients toward the ce...

nt matter & 2007 IAgrE. emseng.2007.07.007 hor. : [email protected] (B. Li) A concrete slatted floor system that consists of a narrow-gap slatted floor and beneath it a slope bottom for separation of faeces and urine in pig houses was investigated. In the experiments, four concrete slatted floors with one of two slat profiles and one of two gap widths, and a steel wire slatted floor were studied ...

Erosive rainfall results in the loss of both soil and nutrients, which indirectly triggers deterioration a reduction land productivity. However, how affects runoff, erosion, nutrient under different crop rotation patterns topographic factors remains unclear. This experiment observed nine runoff-erosion plots on Chinese Loess Plateau (CLP) from 2019 to 2020 determine effects type, pattern, slope...

1. introduction mountain regions are increasingly endangered by a variety of disaster, including avalanche, debris flows, and rock slide. some characteristics such as elevation, angle of slope, vegetation and climatic elements could affect the avalanche event. indeed, avalanche is the second factor in soil erosion that causes demolition; therefore, it threatens the food safety. iran has two mai...

slope instability due to landslides is particularly common in iran. it is possible to fight against these hazards thanks to the roots of trees, which provide an important contribu-tion towards the stability of hillslopes. however, our knowledge of the effectiveness of roots for slope stability needs improvement. therefore this study was carried out on the effect of tree roots on slope stability...

Landslides are natural disasters that have resulted in the loss of economies and lives over years. The landslides caused by 2005 Muzaffarabad earthquake heavily impacted area, slopes region become unstable. This research was carried out to find which areas, as district, sensitive define relationship between geo-environmental factors using three tree-based classifiers, namely, Extreme Gradient B...

although some 3d slope stability algorithms have been proposed in recent three decades, still role of pore pressures in three dimensional slope stability analyses and considering the effects of pore water pressure in 3d slope stability studies needs to be investigated. in this paper, a limit analysis formulation for investigation of role of the pore water pressure in three dimensional slope sta...