Results 281 to 290 of about 6,876,800 (337)

A study of solid-particle erosion of metallic targets

International Journal of Impact Engineering, 2002
We perform detailed finite element simulations of impact of metallic plates by spherical particles over a range of impact angles and speeds with a view to develop an insight into the fundamental mechanisms underlying solid-particle erosion. The particular experimental configuration and data set which we analyze corresponds to the experiments of ...
Molinari, J. F., Ortiz, M.
openaire   +2 more sources

Rigid and Erosive Projectiles Impact on Metallic Targets

2019
In this chapter, the performance of the metallic targets against rigid, deformable, and erosive projectile impact is concerned. Firstly, a perforation model for rigid projectile is introduced and validated. Then, nineteen shots of hemispherical nosed D6A steel projectiles penetrating into 5A06-H112 aluminum targets are conducted with the striking ...
Hao Wu, Yong Peng, Xiangzhen Kong
openaire   +1 more source

Assessment techniques for measurement of target erosion/ redeposition in large tokamaks

Journal of Nuclear Materials, 1993
Abstract Two possible techniques for the measurement of erosion/redeposition in the new JET divertor have been assessed; colour fringe analysis (CFA) and speckle interferometry. CFA is a simple technique in which the target is viewed with a colour camera, and can study optically transparent deposited films up to 1 μm in thickness.
Coad, J., Behrisch, R., de Kock, L., Koch, A., Weschenfelder, F., 'Wienhold, P., Wilhelm, R.   +6 more
openaire   +3 more sources

TARGETING SOIL EROSION CONTROL EFFORTS IN A CRITICAL WATERSHED

1985
The public cost of reducing erosion in a west Tennessee watershed pilot program was 34 percent lower than the national average. The difference was attributed to the pilot program's emphasis on targeting specific erosion problems and to the establishment of permanent vegetative cover on highly eroding land. Even greater use of permanent vegetative cover,
Park, William M., Sawyer, David G., Park, William M., Sawyer, David G.   +3 more
openaire   +1 more source

Spectroscopic measurement of target plate erosion in the ASDEX Upgrade divertor

Nuclear Fusion, 1996
The erosion of the graphite divertor plates in the ASDEX Upgrade tokamak is measured spectroscopically. Spatial profiles of the D0 and C+ influxes across the outer target plate are determined from measured absolute line intensities. Plasma parameters (ne, Te) at the target, which are required to determine the appropriate photon emission efficiencies ...
Field, A., Garcia-Rosales, C., Lieder, G., Pitcher, C., Radtke, R.   +4 more
openaire   +2 more sources

Summary of cavitation erosion investigations for the SNS mercury target

Journal of Nuclear Materials, 2005
Intense proton beam-induced heating of the spallation neutron source mercury target will cause pressure spikes that lead to the formation of cavitation bubbles in the mercury. Erosion of the mercury container walls caused by violent collapse of bubbles could potentially limit its service lifetime. In-beam tests for a limited number of pulses (
J.R. Haines, B.W. Riemer, D.K. Felde, J.D. Hunn, S.J. Pawel, C.C. Tsai   +5 more
openaire   +1 more source

Evaluating Remote Sensing Methods for Targeting Erosion in Riparian Corridors

2005 Tampa, FL July 17-20, 2005, 2005
The Oklahoma Conservation Commission has begun using satellite imagery with hydrologic/water quality modeling to identify potential critical source areas of pollutants. Implementation of best management practices in these critical source areas is essential to the improvement of Oklahoma’s impaired waters.
null Laura E. Christianson, null Meagan B. Armstrong, null Daniel E. Storm, null Michael J. White   +3 more
openaire   +1 more source

Effect of treat-to-target strategies on bone erosion progression in early rheumatoid arthritis: An HR-pQCT study.

Seminars in Arthritis & Rheumatism, 2018
OBJECTIVES To investigate the efficacy of two tight-control treatment strategies aimed at simplified disease activity score [SDAI] remission (SDAI ≤ 3.3) compared to DAS28 remission (DAS28 < 2.6) on progression of bone erosions in early rheumatoid ...
J. Yue, J. Griffith, Jiankun Xu, F. Xiao, Lin Shi, Defeng Wang, P. Wong, E. Li, Martin Li, Tena K. Li, Wah Y Mak, T. Zhu, V. Hung, L. Qin, L. Tam   +14 more
semanticscholar   +1 more source

Erosion of solid krypton targets by protons measured with PIXE

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1989
Abstract Solid krypton targets of 40–600 μg/cm 2 thickness were produced at 20 K. The target erosion under proton bombardment was measured with the depth sensitive PIXE method, using a 400-keV proton beam of 0.1–1.0 μA. Below 39 K, the erosion-yield was found to be S = (12.0 ± 1.3) Kr atoms/proton, independent of the temperature and the beam ...
Th. Osipowicz, K.P. Lieb
openaire   +1 more source

The Effect Magnet Design on Controlling the Target Erosion Profile for DC Magnetron with the Rectangular Target

Plasma chemistry and plasma processing, 2022
Ali Ayachi Omar, A. G. Luchkin, Mohamad Raja Alsayed Omar, N. Kashapov   +3 more
semanticscholar   +1 more source