Results 31 to 40 of about 8,891,192 (320)

Frequency selective surface with complex topology elements

open access: yesВісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електроніка, 2021
Relevance: The solution of specific problems in modern technology of microwave and UHF ranges, such as the implementation of reducing the radar signature of objects, spatial frequency-selective filters, reflectors requires the development and creation of
D. V. Mayboroda, S. A. Pogarsky
doaj   +1 more source

Topological laminations on surfaces [PDF]

open access: yesExpositiones Mathematicae, 2019
We present and prove a topological characterization of geodesic laminations on hyperbolic surfaces of finite type.
openaire   +3 more sources

Enhancing Surface Topology of Udimet®720 Superalloy through Ultrasonic Vibration-Assisted Ball Burnishing

open access: yesMetals, 2020
This contribution reports the effects of an ultrasonic-vibration assisted ball burnishing process on the topological descriptors of nickel-based alloy Udimet®720. This material is of high interest for the transportation industry, and specifically for the
Ramón Jerez-Mesa   +3 more
doaj   +1 more source

Fermi surface topology and large magnetoresistance in the topological semimetal candidate PrBi [PDF]

open access: yesPhysical review B, 2019
We report a detailed magnetotransport study on single crystals of PrBi. The presence of $f$-electrons in this material raises the prospect of realizing a strongly correlated version of topological semimetals.
Amit Vashist   +5 more
semanticscholar   +1 more source

Neutral surface topology [PDF]

open access: yesOcean Modelling, 2019
Neutral surfaces, along which most of the mixing in the ocean occurs, are notoriously difficult objects: they do not exist as well-defined surfaces, and as such can only be approximated.
Geoffrey J. Stanley
semanticscholar   +1 more source

Mirror protected Dirac fermions on a Weyl semimetal NbP surface [PDF]

open access: yes, 2017
The first Weyl semimetal was recently discovered in the NbP class of compounds. Although the topology of these novel materials has been identified, the surface properties are not yet fully understood.
Alidoust, Nasser   +17 more
core   +1 more source

Topological segmentation of discrete surfaces [PDF]

open access: yesProceedings. 1991 IEEE Computer Society Conference on Computer Vision and Pattern Recognition, 1993
no ...
Malandain, Grégoire   +2 more
openaire   +3 more sources

FRACTAL STRUCTURE OF TITANIUM NITRITE DEPOSITED ON STAINLESS STEEL SUBSTRATE

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2014
On the basis of images obtained using scanning tunneling microscope, it was shown that the fractal dimension can be considered as some universal surface characteristic of the titanium nitrite, deposited on stainless steel.
Yu..V. Brylkin
doaj   +1 more source

Multi-legged adaptable crawler capable of maintaining a constant pose locomotion over rugged terrain

open access: yesNihon Kikai Gakkai ronbunshu, 2018
In this paper, we introduce practical design and hardware implementation issues of an adaptable crawler mechanism for a mobile robot, enabling it to maintaining its constant desired pose when moving.
Shu TAKAIRA   +2 more
doaj   +1 more source

RELATION BETWEEN FRACTAL DIMENSION AND SURFACE ROUGHNESS FOR THE COPPER SAMPLES [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2013
Microscopic characteristics of copper surfaces with different roughness were produced using scanning tunnel microscope and fractal analysis.
Yu.V. Brylkin, A.L. Kusov
doaj  

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