Results 1 to 10 of about 2,251,211 (322)

Catalyst Coatings Carriers Based on Aluminium-Silicon Glass Crystalline Compositions [PDF]

Chemical Engineering Transactions, 2017
A method of deposition on the surface of metals or ceramics catalytically active compounds by attaching them to the intermediate glass crystalline coatings.
E.V. Krasnokutskiy, V.E. Ved, L.L. Tovazhnyanskyy, H.V. Ved   +3 more
doaj   +3 more sources

Effect of the surface-active elements on grain boundary oxidation of hot-stamped steel

Materials Letters: X
The effects of minor surface-active alloy elements Sb and Sn on hot-stamped steel grain boundary oxidation at different coiling temperatures were studied through tube sealing and soaking.
Y.Y. Ge, Q.L. Cui
doaj   +2 more sources

INVESTIGATION OF INTERACTION OF SURFACE-ACTIVE CARBONATES ELEMENTS WITH THE ALLOY AK12

Литьë и металлургия, 2013
The investigation of the modifying effects of surface-active metals carbonates on the structure and mechanical properties of eutectic silumin was held. The research results were checked by thermodynamic calculations.
I. A. Petrov, A. D. Shlyaptseva, A. P. Ryakhovskiy, V. S. Moiseyev   +3 more
doaj   +1 more source

Steerable terahertz beams using surface waves on an active metasurface [PDF]

Scientific Reports
The development of dynamic components for controlling wave fronts in the sub-terahertz region of the electromagnetic spectrum has emerged as a frontier research topic for many applications in sensing and communications.
Yaseman Shiri, Jeffrey Lei, Yasith Amarasinghe, Hou-Tong Chen, Chun-Chieh Chang, Michael P. Lilly, Sadhvikas Addamane, Daniel M. Mittleman   +7 more
doaj   +2 more sources

Effects of surface-active elements on wettability and interfacial reaction between DD5 superalloy and Al2O3-based ceramic shell

Results in Surfaces and Interfaces
The study investigates the effects of oxygen-sulfur content, holding temperature, and time on the wettability and interfacial reactions between DD5 superalloy and Al2O3-based ceramic shells through non-in-situ sessile drop experiments.
Jiaqi Zhao, Yi Li, Yi Tan, Pengting Li, Chaoyue Chen   +4 more
doaj   +2 more sources

Achievable rate as affected by active elements distribution in reconfigurable intelligent surfaces for wireless communication [PDF]

PeerJ Computer Science, 2023
To increase constantly the achievable rate of reconfigurable intelligent surfaces (RISs)-assisted communication systems, the traditional approaches are to deploy a few active elements randomly on the passive RISs.
Dongming Li, Sixu Li, Guilu Wu, Chunxi Zhao   +3 more
doaj   +2 more sources

Prevention of corrosion fracture of agricultural equipment during storage [PDF]

E3S Web of Conferences, 2020
The aim of the study is to reduce metal losses of structural elements of agricultural machines caused by atmospheric corrosion. The presents the theoretical justification and practical implementation of method of storing agricultural machinery in an open
Zabara Konstantin, Shpak Artem, Shemyakin Alexander, Melkumova Tatyana, Morozova Natalya, Podyablonskiy Alexey   +5 more
doaj   +1 more source

Mechanism of Embrittlement of Metals by Surface-Active Elements [PDF]

METALLOFIZIKA I NOVEISHIE TEKHNOLOGII, 2018
The nature of mechanical degradation of metals caused by surface-active elements is studied based on the effects of iodine and gallium in austenitic steels and using abinitio calculations and experimental measurements of electronic structure, X-ray diffraction, mechanical spectroscopy, and mechanical tests.
Teus, S.M., Shanina, B.D., Konchits, A.A., Mogilny, G.S., Gavriljuk, V.G.   +4 more
openaire   +2 more sources

Nanostructural theory of metal melts. Foundry production and metallurgy

Литьë и металлургия, 2020
It has been shown that atomic and atomic cluster theories cannot be the basis for theories of crystallization and modification of metals and alloys. Based on thermodynamic calculations, a nanostructural theory of metal melts has been developed.
E. I. Marukovich, V. Yu. Stetsenko
doaj   +1 more source

A Study on Economic Evaluation of Design Elements of Zero-Energy Buildings According to Energy Consumption and Production

Applied Sciences, 2023
In order to expand the zero-energy building, it is necessary to evaluate the economic feasibility of the passive and active elements applied to achieve the zero-energy building.
Soonmyung Lee, Sanghoon Park
doaj   +1 more source