Results 51 to 60 of about 4,611 (302)

Effect of Magnetic Field on Energy Spectrum and localizationof electron in multilayeredspherical nanosystems

Фізика і хімія твердого тіла, 2017
The effect of magnetic field on electron energy spectrum, wave functions and probability densities in multilayered spherical quantum-dot-quantum-well (QDQW) CdSe/ZnS/CdSe/ZnS is studied in order to clear the question if the quasi-particle can tunnel ...
V. Holovatsky, I. Bernik, M. Yahnevych
doaj   +1 more source

Quotients of group completions by spherical subgroups

Journal of Algebra, 2003
The author is concerned with describing projective embeddings of \(G/H\), where \(G\) is a semi-simple algebraic group and \(H\) is a spherical subgroup. The author exploits knowledge of \(G\times G\)-equivariant embeddings \(X\) of \(G\), and in fact a main thrust of the article is to determine a condition under which a projective embedding \(Y\) of \(
openaire   +1 more source

Process‐Informed Analysis of As‐Built Metal Additive Surface Features

Advanced Engineering Materials, EarlyView.
This article introduces a novel method for feature‐based surface texture characterisation directly incorporating manufacturing variables into the feature extraction workflow. This marks a major step towards identifying process‐specific surface properties and their influence on part function and hence a holistic understanding of process–structure ...
Theresa Buchenau, Adam Thompson, Hauke Brüning, Marc Amkreutz, Bernd Mayer, Samanta Piano   +5 more
wiley   +1 more source

Relativistic anisotropic fluid spheres satisfying a non-linear equation of state

European Physical Journal C: Particles and Fields, 2020
In this work, a spherically symmetric and static relativistic anisotropic fluid sphere solution of the Einstein field equations is provided. To build this particular model, we have imposed metric potential $$e^{2\lambda (r)}$$ e2λ(r) and an equation of ...
Francisco Tello-Ortiz, M. Malaver, Ángel Rincón, Y. Gomez-Leyton   +3 more
doaj   +1 more source

The Impact of High‐Productivity Processing on the Fatigue Failure of an Additive Manufactured Superalloy HAYNES 282

Advanced Engineering Materials, EarlyView.
The low cycle fatigue life of additive manufactured HAYNES® 282® superalloy was investigated for conventional and high‐productivity processing: samples of the former lasted 1400–1700 cycles, while samples of the latter failed at ~ 1200 cycles, at 760 °C and 1% strain.
Abdul Shaafi Shaikh, Ahmed Fardan, Tatiana Mishurova, Eduard Hryha   +3 more
wiley   +1 more source

Some fixed point results on ultrametric spaces endowed with a graph

Demonstratio Mathematica
The present article deals with new fixed point theorems by means of GG-strongly contractive maps. The research findings are demonstrated in a spherically complete ultrametric space with a graph for single-valued mappings. The special cases of the results
Acar Özlem, Özkapu Aybala Sevde, Öztürk Mahpeyker   +2 more
doaj   +1 more source

Tailoring IONP shape and designing nanocomposite IONS@GN toward modification of SPCE to enhance electrochemical degradation of organic dye

Materials Research Express, 2020
Iron oxide nanoparticles (IONP) with different distinctive morphologies (spherical, cubic, flower-like and needles) were utilized for modification of screen-printed carbon electrodes (SPCE) to be used for synthetic organic dye degradation by an ...
Miloš Ognjanović, Dalibor M Stanković, Martin Fabián, Sanja Vranješ-Đurić, Bratislav Antić, Biljana Dojčinović   +5 more
doaj   +1 more source

Cortical Folding Development Study based on Over-Complete Spherical Wavelets [PDF]

2007 IEEE 11th International Conference on Computer Vision, 2007
We introduce the use of over-complete spherical wavelets for shape analysis of 2D closed surfaces. Bi-orthogonal spherical wavelets have been shown to be powerful tools in the segmentation and shape analysis of 2D closed surfaces, but unfortunately they suffer from aliasing problems and are therefore not invariant under rotations of the underlying ...
Peng, Yu, Boon Thye Thomas, Yeo, P Ellen, Grant, Bruce, Fischl, Polina, Golland   +4 more
openaire   +2 more sources

Laser Powder Bed Fusion of Copper–Tungsten Composites for Heat Sink Applications in High‐Power Electronics

Advanced Engineering Materials, EarlyView.
This article demonstrates the successful qualification of a copper–tungsten composite for laser powder bed fusion. The resulting components exhibited high density, high thermal conductivity, and reduced thermal expansion. Heat sinks with complex geometries were successfully manufactured, clearly showcasing the material's potential for additive ...
Simon Rauh, Shashank Deepak Prabhu, Jannik Huber, Lioba Fischer, Gerhard Wolf, Nico Hempel, Peter Mayr   +6 more
wiley   +1 more source

Laser Metal Deposition of Aluminum Alloys 7075 and 5083 with the Addition of Volatile Alloying Elements through Powder Blending

Advanced Engineering Materials, EarlyView.
This study investigates laser metal deposition of aluminum alloys EN AW‐7075 and EN AW‐5083, using powder blending to compensate zinc and magnesium evaporation. In situ alloying and ex situ alloying with ZnAl12 and AZ91 preserve near‐standard compositions and improve mechanical properties.
Finn Bendixen, Anastasiya Toenjes, Annika Bohlen, Thomas Seefeld   +3 more
wiley   +1 more source