Results 251 to 260 of about 499,009 (308)

Erosion mechanism and erosion products in carbon-based materials

Journal of Nuclear Materials, 2002
Abstract Plasma/material interaction was studied in disruption simulation experiments at the plasma gun facility MK-200. Graphite and carbon-fibre composites were exposed to pulsed energetic plasma under heat loads typically expected for disruptions in future tokamaks.
Arkhipov, N., Bakhtin, V., Barsuk, V., Kurkin, S., Mironova, E., Piazza, G., Safronov, V., Scaffidi-Argentina, F., Toporkov, D., Vasenin, S., Würz, H., Zhitlukhin, A.   +11 more
openaire   +2 more sources

Cavitation Erosion Mechanism Based on Analysis of Erosion Particles

Journal of Tribology, 2008
The mechanism of cavitation erosion is investigated in detail through observations of the removed particles from pure aluminum (Al-99.999). The particles removed during the incubation stage have distinctive characteristics compared to those removed in the subsequent stages.
A. Abouel-Kasem, S. M. Ahmed
openaire   +1 more source

Cavitation erosion mechanisms and quantitative evaluation based on erosion particles

Wear, 2001
Abstract Cavitation erosion mechanisms were studied through the observation of removed particles for annealed S15C (equivalent to AISI 1015) steel and heat-treated S55C (AISI 1055) steels. In the initial and the incubation stages, single impact loads removed many small sharply edged particles.
Shuji Hattori, Eisaku Nakao
openaire   +1 more source

Satellite-Based Soil Erosion Mapping

2021
Soil erosion has long been recognised as a significant process of soil destruction, affecting millions of hectares of land worldwide, resulting in loss of fertility and biodiversity, decreased stability of marine and terrestrial ecosystems and enhanced exposure to climate change.
Kishor Kumar Sahu, Satyajeet Kar, Sandeep Rout   +2 more
openaire   +1 more source

IMAGE-BASED EROSION MEASUREMENT TECHNIQUE

2002 Chicago, IL July 28-31, 2002, 2002
Computer software exists for conducting image analysis but is often either cost prohibitive or very labor intensive to use. This paper describes a simple 2-D image-based technique used to conduct simple measurements photographically using software that would typically already be in use in an engineering office (i.e.
null G. J. Hanson, null K. R. Cook, null W. Hahn   +2 more
openaire   +1 more source

Spark Erosion Based Hybrid Processes

2020
This chapter summarizes the development of Spark erosion machining (SEM)-based hybrid processes aimed at overcoming the aforesaid issues, detailing their working principles and mechanisms of material removal. In SEM, every discharge of spark over the workpiece and the tool surface removes a very small volume of material by melting and vaporization ...
Afzaal Ahmed, M. Rahman, A. Senthil Kumar   +2 more
openaire   +1 more source

Physically-based hydraulic erosion

Proceedings of the 22nd Spring Conference on Computer Graphics, 2006
Terrain morphology has been on the radar of Computer Graphics for more than twenty years and various techniques for its modeling have been presented. These approaches range from fractal and multifractal terrain generation to physically-based models of erosion and weathering.
openaire   +1 more source

IMAGE–BASED EROSION MEASUREMENT TECHNIQUE

Applied Engineering in Agriculture, 2002
Two– and three – dimensional analysis using close–range digital photographs can be very useful in measuring changes in erosion on the landscape. Computer software exists for conducting photographic analysis but it is often either cost prohibitive or very labor intensive to use. This article describes a simple 2–D image–based technique used to conduct
null G. J. Hanson, null K. R. Cook, null W. Hahn IV   +2 more
openaire   +1 more source

Allergic fungal sinusitis with cranial base erosion

Head & Neck, 1996
Allergic fungal sinusitis (AFS) usually follows a slow, nonaggressive course. However, massive bone destruction can occur, with extension of the disease process outside of the confines of the sinuses.Our series of 28 cases of AFS was reviewed. We identified 6 cases of AFS with definite radiographic evidence of skull base erosion.Histologic diagnostic ...
J B, Kinsella, C H, Rassekh, J L, Bradfield, G, Chaljub, S W, McNees, W K, Gourley, K H, Calhoun   +6 more
openaire   +2 more sources

Erosion by Water

2005
Soil erosion models can play a critical role in addressing problems associated with soil protection and conservation. They are used for assessment and inventory purposes when financial and time-costs of obtaining useful soil erosion measurements are prohibitive. They provide assessments of both on-site loss of topsoil and off-site delivery of sediments
openaire   +1 more source