Results 21 to 30 of about 1,939,581 (341)

A property of complete minimal surfaces [PDF]

open access: yesTransactions of the American Mathematical Society, 1984
If M M is a complete minimal surface in R n {R^n} , we denote by W W the set of points in R n {R^n} that do not lie on any tangent plane of M M .
Hasanis, T., Koutroufiotis, D.
openaire   +3 more sources

Impact of particle shape on electron transport and lifetime in zinc oxide nanorod-based dye-sensitized solar cells

open access: yesAIMS Materials Science, 2016
Owing to its high electron mobility, zinc oxide represents a promising alternative to titanium dioxide as the working electrode material in dye-sensitized solar cells (DSCs).
Roger Chang   +2 more
doaj   +1 more source

A numerical approach for fluid deformable surfaces with conserved enclosed volume [PDF]

open access: yes, 2022
We consider surface finite elements and a semi-implicit time stepping scheme to simulate fluid deformable surfaces. Such surfaces are modeled by incompressible surface Navier-Stokes equations with bending forces. Here, we consider closed surfaces and enforce conservation of the enclosed volume.
arxiv   +1 more source

Effects of liquids immersion and drying on the surface properties of HTV silicone rubber: characterisation by contact angle and surface physical morphology

open access: yesHigh Voltage, 2019
High-temperature vulcanised (HTV) silicone rubber composite insulator has been widely used in extra-high and ultra-high transmission lines due to its excellent electrical and mechanical performance.
Yanfeng Gao   +6 more
doaj   +1 more source

Hierarchical microstructure of nanoparticles of calcium carbonate/epoxy composites: Thermomechanical and surface properties

open access: yeseXPRESS Polymer Letters, 2020
Calcium carbonate nanoparticles of calcite structure and nanometric size were successfully synthesized by mechanochemical processing using low energy mill (100 rpm).
T. B. Miranda, G. G. Silva
doaj   +1 more source

Uniformization of surfaces with boundary and the application to the triple junction surfaces with negative Euler characteristic [PDF]

open access: yesarXiv, 2021
The conformal structure on minimal surfaces plays a key role in studying the properties of minimal surfaces. Here we extend the results of uniformization of surfaces with boundary to get the (weak) uniformization results for triple junction surfaces.
arxiv  

Nanomechanical properties of rough surfaces [PDF]

open access: yesMaterials Research, 2006
The nanoindentation technique allows the determination of mechanical properties at nanometric scale. Hardness (H) and elastic modulus (E) profiles are usually determined by using the Oliver-Pharr method from the load/unload curves. This approach is valid only for flat surfaces, or at least, when a very low degree of asperity is present (lower than 30 ...
Souza, Gelson Biscaia de   +3 more
openaire   +4 more sources

Effect of Three Commonly Consumed Beverages on Surface Roughness of Polished and Glazed Zirconia-Reinforced Lithium Silicate Glass Ceramics

open access: yesFrontiers in Dentistry, 2019
Objectives: This study aimed to assess the effect of three commonly consumed beverages on surface roughness of polished and glazed zirconia-reinforced lithium silicate (ZLS) glass ceramics.
Farnaz Firouz   +5 more
doaj   +1 more source

The influence of water repellent products on the chromatic modifications of the ceramic brick

open access: yesMateriales de Construccion, 2011
Chromatic variation, colour and luminosity, undergone by the ceramic support protected by the incorporation of a treatment with water repellent products, is analysed. A new methodology is suggested, based on RGB model where quantifiable values from each
J. A. Coronado Martin, A. Garcia Santos
doaj   +1 more source

Long-term osseointegration of laser-ablated hearing implants in sheep cranial bone

open access: yesFrontiers in Surgery, 2022
Osseointegration, the ability for an implant to be anchored in bone tissue with direct bone-implant contact and allowing for continuous adaptive remodelling, is clinically used in different reconstructive fields, such as dentistry, orthopedics and ...
Martin Lars Johansson   +7 more
doaj   +1 more source

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