Results 21 to 30 of about 703,985 (336)

Impact of Surface Roughness on Ion-Surface Interactions Studied with Energetic Carbon Ions 13C on Tungsten Surfaces+

open access: yesCondensed Matter, 2019
The effect of surface roughness on angular distributions of reflected and physically sputtered particles is investigated by ultra-high vacuum (UHV) ion-surface interaction experiments.
Maren Hellwig   +7 more
doaj   +1 more source

Strategy for Surface Post-Processing of AISI 316L Additively Manufactured by Powder Bed Fusion Using Ultrasonic Nanocrystal Surface Modification

open access: yesMetals, 2021
Ultrasonic nanocrystal surface modification (UNSM) technology was applied to the surfaces of specimens additively manufactured by powder bed fusion (PBF).
Seung-Young Cho   +3 more
doaj   +1 more source

Rough Justice [PDF]

open access: yesHastings Center Report, 2017
AbstractIn the Perspective in this issue of the Hastings Center Report (September‐October 2017), Barron Lerner contrasts the “true believers” in public health schools—“people willing to crusade for any program designed to reduce morbidity and mortality”—and the political operators in the “real world” who often stand in their way.
openaire   +2 more sources

Dynamic evolution of interface roughness during friction and wear processes [PDF]

open access: yes, 2014
Dynamic evolution of surface roughness and influence of initial roughness (Sa=0.282 to 6.73 µm) during friction and wear processes has been analyzed experimentally.
Bigerelle   +18 more
core   +4 more sources

Roughness Effect on the Flow Past Axisymmetric Bodies at High Incidence

open access: yesAerospace, 2022
The flow at low Mach numbers and high angles of attack over axisymmetric configurations is not symmetric. The mechanism that triggers the asymmetry is a combination of a global (temporal) instability and a convective (spatial) instability.
José Jiménez-Varona   +3 more
doaj   +1 more source

Transient damage spreading and anomalous scaling in mortar crack surfaces [PDF]

open access: yes, 2008
The scaling properties of a post-mortem mortar crack surface are investigated. The root mean square of the height fluctuations is found to obey anomalous scaling properties, but with three exponents, two of them characterizing the local roughness (zeta ...
Bouchaud, Elisabeth   +3 more
core   +1 more source

Rough Groups over Rough Sets

open access: yesTürk Doğa ve Fen Dergisi, 2023
In this study the rough algebraic structure especially on rough group is focused. The author make over the inadequate definition of rough group of an approximation space. Here, the rough groups over the rough sets is defined, in the sense of Pawlak's rough sets. Later, the structure of rough groups is given.
openaire   +2 more sources

The influence of surface roughness on the adhesive interactions and phase behavior of suspensions of calcite nanoparticles [PDF]

open access: yes, 2020
We investigate the impact of nanoparticle roughness on the phase behaviour of suspensions in models of calcium carbonate nanoparticles. We use a Derjaguin approach that incorporates roughness effects and interactions between the nanoparticles modelled ...
Brekke-Svaland, Gøran   +2 more
core   +2 more sources

Surface correlations of hydrodynamic drag for transitionally rough engineering surfaces [PDF]

open access: yes, 2016
Rough surfaces are usually characterised by a single equivalent sand-grain roughness height scale that typically needs to be determined from laboratory experiments.
Busse, Angela   +2 more
core   +1 more source

Modelling the Wave Overtopping Flow over the Crest and the Landward Slope of Grass-Covered Flood Defences

open access: yesJournal of Marine Science and Engineering, 2020
The wave overtopping flow can exert high hydraulic loads on the grass cover of dikes leading to failure of the cover layer on the crest and the landward slope.
Vera M. van Bergeijk   +2 more
doaj   +1 more source

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