... shortage and water quality issues related to soil erosion are a major problem affecting the population in rural and urban areas. Consequently, during the last decade increasing attention has been focussed especially on such issues, and an increasing number of integrated hydrological and erosion studies...

... Cavitation damage in hydraulic machines is still unavoidable as the downsizing and the increase in their power continue. One of the characteristic features of cavitation erosion is that the removal of metallic material occurs after an incubation period, during which no mass loss, but plastic...

... studied in the IHA at two different test systems. In a cavitating-jet apparatus, the material loss due to cavitation erosion is studied and in a Vickers 20VQ test, the material loss due to tribological action in vane pump is studied. Importance of oil type on wear in fluid power components is discussed...

... There is a common presumption that the ‘dry’ cold in Antarctica will preserve historic buildings, but this has proved not to be true. Identified conservation problems include high humidity, fungi, salt damage, surface erosion by windborne particles and corrosion of metals. This paper reviews...

... is described. Stability analysis and centrifuge tests are conducted to confirm the observations and improve designs. Storm water ponds are found to be critical to both stability and settlement. For embankments compacted using the standard Proctor method, progressive failure would start with any further erosion...

... is described. Stability analysis and centrifuge tests are conducted to confirm the observations and improve designs. Storm water ponds are found to be critical to both stability and settlement. For embankments compacted using the standard Proctor method, progressive failure would start with any further erosion...

... exposure data are presented here; any typographical errors in the 0.5 through 3-year exposure data published previously have been corrected. seawater corrosivity world-wide aluminum alloy copper-nickel steel localized corrosion erosion velocity biofouling Bopinder S. Phull,t Stanley J...

... The erosion process is studied from a solid mechanics perspective. This paper describes the analysis of multiple coincident particle impacts of an elastic steel sphere on an elastic-plastic copper target material. The analysis is performed using the DYNA2D nonlinear dynamic finite element code...

... on the fiber orientation. continuous-fiber ceramic composites abrasive waterjets machining edge finishing fiber direction surface roughness bending fracture erosion delamination M. Ramulu, 1 N. Eswara Prasad, 2 G. Malakondaiah, 2 and Z. Guo I SECONDARY PROCESSING EFFECTS AND DAMAGE MECHANISMS...

.... corrosion prediction oil and gas carbon dioxide erosion inhibition velocity Juri Kolts i and Erwin Suc~ CORROSION LIFE PREDICTION OF OIL AND GAS PRODUCTION PROCESSING EQUIPMENT REFFAENCE: Kolts, J. and Buck, E., "Corrosion Life P r e d i c t i o n of Oil and Gas Production Processing Equipment...

... This paper summarizes Boundary Element Method Stress Intensity Factor solutions, obtained by the authors and presented elsewhere, for internally pressurized thick cylinders having a single longitudinal, semicircular erosion on the internal bore with radial straight-fronted and elliptical cracks...

... to algal growth ( r 2 of 0.76 to 0.93), to allow routine measurement of potentially bioavailable P (BAP) in runoff. Bioavailable P loss in runoff from 20 agricultural watersheds in the Southern Plains was measured over a 5-year period. Losses were reduced by practices minimizing erosion and runoff...

... An acoustic emission (AE) technique is developed for monitoring hard particle impact for eventual use as an on-line erosion rate sensor. In a preliminary study the elastic impact of bronze and glass particles (size range 50 – 100 μm, velocities 2.5 – 7.1 m/s) on a aluminium target...

... The complexity of the erosion process and the difficulty in modeling it are discussed. As for the complexity, the multiplicity of factors that affect the erosion process are described and the effect of these parameters in the context of erosion modeling is considered. The mechanisms of erosion...

... behavior of the soil, information that is necessary for the rational choice and design of effective erosion control measures. Sensitivity analysis, including investigation of the effects of sampling approach, temperature, dispersing time, meniscus, and concentration, showed this technique to be a simple...

... for the Federal Highway Administration, and from actual field and contractual experience of the authors. geotextile drainage erosion separation reinforcement survivability Gregory N. Richardson^ and David C. Wyant^ Geotextiles Construction Criteria REFERENCE: Richardson, G. N. and Wyant, D. C...

... Four coatings, including tungsten carbide wear-resistant and cobalt-base corrosion-resistant materials, were tested for abrasion and erosion performance in silica sand and in Alundum slurries. A 1018 carbon steel sample was also tested for comparison. The abrasion tests were conducted with a wet...

... The relative erosivity (defined as the ratio of the rate of mass loss from a target specimen tested in one slurry and the rate of mass loss in another slurry) for coal-water, coal-oil, and petroleum coke-oil slurries has been determined using pot testers with a rotating flat-plate specimen...

... An investigation of the erosivity of particles of several different coals and respective vacuum bottoms from the Exxon Donor Solvent (EDS) coal liquefaction pilot plant of the Exxon Coal Liquefaction Process (ECLP) was carried out. Kerosene and tetrahydrofuran (THF) were used as the liquids...

... A coal and water fuel was recycled repeatedly through an erosion test loop. The effects of this on the fuel's erosiveness were studied. This was done to determine the feasibility of erosion testing using continuously recycled coal-water fuel. The erosiveness of the coal-water slurry was observed...