Results 31 to 40 of about 2,251,211 (322)

On deoxidation and modification of carbon steel

open access: yesЛитьë и металлургия, 2023
It has been shown that the elementary crystal cells of the basic products of deoxidation and modification of carbon steel, δ ferrite and austenite do not correspond to the principle of structural and dimensional correspondence of Dankov – Konobeevsky ...
E. I. Marukovich   +2 more
doaj   +1 more source

Surface and interfacial properties of Fe-C-O-Cr alloys in contact with alumina [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2020
In this paper, temperature and concentration dependencies on density and surface tension of liquid Fe-C-O-Cr alloys (1.93 - 4.80 wt.% Cr) were investigated in high-temperature resistance observation furnace by a sessile drop method during heating from ...
Novák V.   +6 more
doaj   +1 more source

Surface Softness Tuning with Arch‐Forming Active Hydrogel Elements

open access: yesAdvanced Engineering Materials, 2023
Thin active elements can be added to rigid surfaces for the tuning of mechanical contact properties. The deformation of the active structures leads to the forming of arches.
Adrian Ehrenhofer, T. Wallmersperger
semanticscholar   +1 more source

Research Status on Surface Modification of Materials by Low-Temperature Plasma [PDF]

open access: yesCailiao Baohu, 2022
As a new type of method to activate molecular, low-temperature plasma has a large number of active particles with various types, which are easy to react with the surface of the material, and is suitable for surface modification treatment of the materials.
QIAO Qian-sen, BA De-ma
doaj   +1 more source

Intelligent Reflecting Surface Enhanced Wireless Network via Joint Active and Passive Beamforming [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2018
Intelligent reflecting surface (IRS) is a revolutionary and transformative technology for achieving spectrum and energy efficient wireless communication cost-effectively in the future.
Qingqing Wu, Rui Zhang
semanticscholar   +1 more source

Use of rare earth oxides as tracers to identify sediment source areas for agricultural hillslopes [PDF]

open access: yes, 2010
Understanding sediment sources is essential to enable more effective targeting of in-field mitigation approaches to reduce diffuse pollution from agricultural land.
Deasy, C., Quinton, John
core   +1 more source

Improvement of oxygen reduction activity and stability on a perovskite oxide surface by electrochemical potential

open access: yesNature Communications, 2023
The instability of the surface chemistry in transition metal oxide perovskites is the main factor hindering the long-term durability of oxygen electrodes in solid oxide electrochemical cells.
Sanaz Koohfar   +8 more
doaj   +1 more source

Isolation of Responsive Elements of Planar Multi-Element Photodiodes

open access: yesEast European Journal of Physics, 2023
In the mass production of multi-element silicon p-i-n photodiodes, the problem of systematic rejection of products due to a decrease in the insulation resistance between the active elements of photodetectors has been revealed. The purpose of this work is
Mykola S. Kukurudziak
doaj   +1 more source

Microfluidic actuation by modulation of surface stresses [PDF]

open access: yes, 2003
We demonstrate the active manipulation of nanoliter liquid samples on the surface of a glass or silicon substrate by combining chemical surface patterning with electronically addressable microheater arrays. Hydrophilic lanes designate the possible routes
Darhuber, Anton A.   +4 more
core   +2 more sources

The Grain-size Patchiness of Braided Gravel-Bed Streams – example of the Urumqi River (northeast Tian Shan, China) [PDF]

open access: yesAdvances in Geosciences, 2014
In gravel-bed rivers, sediments are often sorted into patches of different grain-sizes, but in braided streams, the link between this sorting and the channel morpho-sedimentary elements is still unclear. In this study, the size of the bed sediment in the
L. Guerit   +9 more
doaj   +1 more source

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