Results 201 to 210 of about 494 (239)
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Spatial and temporal variations in rainfall erosivity and erosivity density in South Korea
Catena, 2019Abstract Rainfall erosivity is one of the key parameters in Universal Soil Loss Equation (USLE), which has been used to predict the amount of soil loss by water for 50 years. Investigating spatial and temporal trends in rainfall erosivity is important for soil and water conservation planning.
Taereem Kim +2 more
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Rainfall erosivity and erosivity density in Eastern Ghats Highland of east India
Natural Hazards, 2019The rainfall erosivity (R-factor in USLE) is the long-term average of the sum of the product of rainfall kinetic energy and its maximum 30-min intensity. Therefore, at most 30-min time intervals pluviograph records are required to calculate R-factor.
Partha Pratim Adhikary +2 more
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Erosivity density as an indicator of soil erosion risk in South Asia
CatenaManabendra Saharia +2 more
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Spatiotemporal Variations and Projected Rainfall Erosivity and Erosivity Density in Kazakhstan
2021In this chapter, the spatial-temporal variation of rainfall erosivity in Kazakhstan in 1970–2017 was investigated. The results showed that the average annual rainfall erosivity in Kazakhstan over the past 48 years was 464 MJ mm ha−1 h−1 year−1. No significant time trend was found in annual rainfall erosivity.
Eldiiar Duulatov +5 more
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Effects of Bulk Density on Sediment Erosion Rates
Water, Air, and Soil Pollution, 1997By means of a recently developed flume, sediment erosion rates as a function of shear stress and with depth in the sediments have previously been determined for relatively undisturbed sediments from several rivers and lakes. These experiments demonstrated that erosion rates depended on at least the following parameters: bulk density (or water content ...
Rich Jepsen, Jesse Roberts, Wilbert Lick
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Influence of Weft Density on Runoff Erosion Control Performance of Rolled Erosion Control Systems
2021Rolled erosion control systems (RECSs) used in erosion control application mitigates runoff erosion through micro-barriers created by cross-laid weft yarns of RECS. Increase in number of cross-laid weft yarns (weft density) of RECSs is expected to improve its performance, so coir and jute RECSs with different weft density were prepared and evaluated ...
Vinay Kumar Midha, S. Suresh Kumar
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Chemical Erosion of CFC at High Ion Flux Densities
Physica Scripta, 2001Former measurements at PSI-1 have been completed by new investigations of the chemical erosion yield for a D+ flux density of 1.8 D+/m2 s in the upgraded plasma generator PSI-2. Si doped CFC samples (NS 31) were exposed to a deuterium plasma. By increasing the neutral gas pressure the electron temperature could be kept below 10 eV.
Kornejew, P. +3 more
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Annals of the Rheumatic Diseases, 2014
Background Hand osteoarthritis (OA) and its severe subset erosive hand OA are common causes of pain and morbidity in western world. Few studies investigated differences in systemic bone loss and metabolic diseases between non-erosive and erosive hand OA.
O. Ruzickova +3 more
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Background Hand osteoarthritis (OA) and its severe subset erosive hand OA are common causes of pain and morbidity in western world. Few studies investigated differences in systemic bone loss and metabolic diseases between non-erosive and erosive hand OA.
O. Ruzickova +3 more
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Dependence of rate of physical erosion on orientation and density in mineralised tissues
Anatomy and Embryology, 1984Bone, dentine and enamel samples were treated with a gas-propelled jet of an abrasive, NaHCO3, which is physically much softer than any of these tissues in their fully mineralised condition. It was nevertheless found that they are all eroded by this treatment, which can therefore be used as a new kind of qualitative test of physical properties relating
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