Results 1 to 10 of about 1,135,634 (149)

Understanding the Mechanism of Load-Carrying Capacity between Parallel Rough Surfaces through a Deterministic Mixed Lubrication Model

open access: yesLubricants, 2022
Experimental results have confirmed that parallel rough surfaces can be separated by a full fluid film. However, such a lift-off effect is not expected by the traditional Reynolds theory.
Yuechang Wang   +6 more
doaj   +1 more source

Understanding the local pitting corrosion characteristics of carbon steel in CO2 corrosion environment using artificially machined pits

open access: yesResults in Engineering, 2022
Carbon steel remains the most commonly used material in CO2 – containing oilfield, and other energy applications. Pitting corrosion is a prominent form of corrosion attack on carbon steel, and linked to the formation of non – protective iron carbonate ...
Frederick O. Pessu   +3 more
doaj   +1 more source

Impact of processing defects on microstructure, surface quality, and tribological performance in 3D printed polymers

open access: yesJournal of Materials Research and Technology, 2023
Additive manufacturing (AM), also known as three-dimensional (3D) printing, of polymer-based materials is growing as a time-efficient, economical, and environmentally sustainable technique for prototype development in load-bearing applications. This work
Nayan Dhakal   +4 more
doaj   +1 more source

Effect of Surface Biphilicity on FC-72 Flow Boiling in a Rectangular Minichannel

open access: yesFrontiers in Mechanical Engineering, 2021
Flow boiling is one of the most effective mechanisms in heat transfer thanks to the latent heat of vaporization. Surface modifications such as mixed-wettability have a considerable effect on the boiling heat transfer performance in terms of enhancement ...
Akam Aboubakri   +11 more
doaj   +1 more source

Asymmetric azide-alkyne Huisgen cycloaddition on chiral metal surfaces

open access: yesCommunications Chemistry, 2021
Mechanistic insight into enantioselective reactions at intrinsically chiral surfaces can be challenging to obtain. Here the catalytic activity of Pd1- and Pd3-terminated PdGa{111} surfaces is shown to differ substantially, with Pd1-terminated surfaces ...
Samuel Stolz   +12 more
doaj   +1 more source

Functional Acrylic Surfaces Obtained by Scratching

open access: yesFluids, 2021
By using sandpaper of different grit, we have scratched up smooth sheets of acrylic to cover their surfaces with disordered but near parallel micro-grooves.
Abraham Medina   +2 more
doaj   +1 more source

Integration of Inkjet Printed Graphene as a Hole Transport Layer in Organic Solar Cells

open access: yesMicromachines, 2023
This work demonstrates the green production of a graphene ink for inkjet printing and its use as a hole transport layer (HTL) in an organic solar cell.
Julia Kastner   +5 more
doaj   +1 more source

Critical magnetic behavior in [Ag8/Co0.5]x64, [Ag8/Co1]x32 and [Ag16/Co1]x32 epitaxial multilayers

open access: yesAIP Advances, 2021
We investigate the low temperature magnetic behavior of three epitaxial Co/Ag multilayers, grown onto MgO (001) substrates, with a nominal content per period of either half a monolayer or one monolayer of Co, and either 8 or 16 Ag monolayers. The samples
Enrique Navarro   +9 more
doaj   +1 more source

Nano-in-Micro-Particles Consisting of PLGA Nanoparticles Embedded in Chitosan Microparticles via Spray-Drying Enhances Their Uptake in the Olfactory Mucosa

open access: yesFrontiers in Pharmacology, 2021
Intranasal delivery has gained prominence since 1990, when the olfactory mucosa was recognized as the window to the brain and the central nervous system (CNS); this has enabled the direct site specific targeting of neurological diseases for the first ...
Lena Marie Spindler   +13 more
doaj   +1 more source

Density functional simulation of the BaZrO3 (011) surface structure [PDF]

open access: yes, 2007
The atomic structure and charge redistribution of different terminations of BaZrO3 (011) surfaces have been studied using density functional simulations.
Heifets, Eugene   +2 more
core   +1 more source

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