Results 11 to 20 of about 120,841 (261)

Effects of surface roughness on wettability and surface energy of coal

open access: yesFrontiers in Earth Science, 2023
Surface roughness has an important effect on the wettability and surface energy of coal. Although the predecessors had studied the effect of surface roughness on the wettability of coal, there were few researches on the effect of surface energy of coal ...
Jian Zhang   +8 more
doaj   +1 more source

Rough-surface shadowing of self-affine random rough surfaces [PDF]

open access: yesJournal of Quantitative Spectroscopy and Radiative Transfer, 2007
Light scattering from self-affine homogeneous isotropic random rough surfaces is studied using the ray-optics approximation. Numerical methods are developed to accelerate the first-order scattering simulations from surfaces represented as single-connected single-valued random fields, and to store the results of the simulations into a numerical ...
Parviainen, Hannu, Muinonen, Karri
openaire   +2 more sources

Influence of Surface Roughness on Superhydrophobicity [PDF]

open access: yesPhysical Review Letters, 2006
Superhydrophobic surfaces, with liquid contact angle theta greater than 150 degree, have important practical applications ranging from self-cleaning window glasses, paints, and fabrics to low-friction surfaces. Many biological surfaces, such as the lotus leaf, have hierarchically structured surface roughness which is optimized for superhydrophobicity ...
Yang, C.   +2 more
openaire   +4 more sources

Extension of the probe-tip error evaluation for areal surface roughness measurements using metrological AFM

open access: yesMeasurement: Sensors, 2021
Recently, there have been increasing demands not only for the conventional profile surface roughness measurements using atomic force microscopes (AFM) but also for areal surface roughness measurements.
Ichiko Misumi   +4 more
doaj   +1 more source

Avalanches at rough surfaces

open access: yesPhysical Review E, 2000
8 Pages, 7 Figures (in 15 parts); accepted for publication in Physical Review ...
Barker, G. C., Mehta, Anita
openaire   +3 more sources

Evaluation of internal surface roughness in fiberglass pipes by surface roughness instruments [PDF]

open access: yesمهندسی منابع آب
Introduction: Investigation of the internal surface roughness of fluid transmission systems pipes is very important in the amount of energy loss. Different concepts and methods have been used to examine surface roughness.
Farnoush Aghaee Daneshvar   +3 more
doaj   +1 more source

Enhancement of laser heating process by laser surface modification on Titanium alloy

open access: yesJournal of Mechanical Engineering and Sciences, 2021
Titanium alloys are widely utilized in laser heating applications. However, it has poor optical properties due to low laser energy absorption. Nevertheless, a higher energy absorption can be realized by modifying the surface profile through increasing ...
A. Q. Zaifuddin   +4 more
doaj   +1 more source

Defects formation mechanism and evaluation of surface roughness in machining Al/SiCp composites

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2018
During machining Al/SiCp composites, the machined surface takes on many defects such as grooves, pits, voids and protuberances, which greatly affect the characterization parameters of surface topography. However, a detailed investigation of the formation
Chunzheng DUAN   +3 more
doaj   +1 more source

Relationship between soil surface roughness and hydraulic roughness coefficient on sloping farmland

open access: yesWater Science and Engineering, 2012
The soil surface roughness and hydraulic roughness coefficient are important hydraulic resistance characteristic parameters. Precisely estimating the hydraulic roughness coefficient is important to understanding mechanisms of overland flow.
Zi-cheng Zheng, Shu-qin He, Fa-qi Wu
doaj   +1 more source

Sensitivity of material failure to surface roughness: A study on titanium alloys Ti64 and Ti407

open access: yesMaterials & Design, 2021
The relationship between material failure and surface roughness has been investigated using two titanium alloys: Ti64 and the more ductile Ti407. Three surface types were created (polished, sandblasted and scratched) with instances spanning a wide range ...
Scott Sneddon   +5 more
doaj   +1 more source

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