Results 41 to 50 of about 3,997,640 (371)

Hamiltonian of a many-electron system with single-electron and electron-pair states in a two-dimensional periodic potential [PDF]

Eur. Phys. J. B (2015) 88: 20, 2015
Based on the metastable electron-pair energy band in a two-dimensional (2D) periodic potential obtained previously by Hai and Castelano [J. Phys.: Condens. Matter 26, 115502 (2014)], we present in this work a Hamiltonian of many electrons consisting of single electrons and electron pairs in the 2D system.
arxiv   +1 more source

What’s so Hot about Electrons in Metal Nanoparticles? [PDF]

, 2017
Metal nanoparticles are excellent light absorbers. The absorption processes create highly excited electron–hole pairs, and recently there has been interest in harnessing these hot charge carriers for photocatalysis and solar energy conversion ...
G. Hartland, L. Besteiro, Paul M. Johns, A. Govorov   +3 more
semanticscholar   +1 more source

Electronic Markets and Electronic Hierarchies [PDF]

Communications of the ACM, 1987
Abstract The innovations in information technologies of the past two decades have radically reduced the time and cost of processing and communicating information. These reductions have in turn brought many changes in the ways that tasks are accomplished in firms.
Thomas W. Malone, JoAnne Yates, Robert I. Benjamin   +2 more
openaire   +2 more sources

Evaluation of the Electron Contamination in Photon Therapy Using BEAMnrc Code

مجله دانشکده پزشکی اصفهان, 2019
Background: Today, high-energy photon beams are widely used in the treatment of all types of cancers. However, the production of electrons as contaminants in the photon pathway provides the necessity for research in this field.
Nahid Chegeni, Seyedeh Khadijeh Hosseini, Hojjatollah Shahbazian, Maryam Hassanvand   +3 more
doaj   +1 more source

Implications of Kappa Suprathermal Halo of the Solar Wind Electrons

Frontiers in Astronomy and Space Sciences, 2022
The electron velocity distributions measured in-situ in space plasmas reveal two central populations, a low-energy and highly dense (quasi-)thermal core, and a more diffuse but hotter suprathermal halo. Even if the core contributes much more to the total
Viviane Pierrard, Viviane Pierrard, Marian Lazar, Marian Lazar, Stepan Stverak, Stepan Stverak   +5 more
doaj   +1 more source

Statistical process control to monitor use of a web‐based autoplanning tool

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose To investigate the use of statistical process control (SPC) for quality assurance of an integrated web‐based autoplanning tool, Radiation Planning Assistant (RPA). Methods Automatically generated plans were downloaded and imported into two treatment planning systems (TPSs), RayStation and Eclipse, in which they were recalculated using ...
Hunter Mehrens, Raphael Douglas, Mary Gronberg, Kelly Nealon, Joy Zhang, Laurence Court   +5 more
wiley   +1 more source

Treatment planning with a 2.5 MV photon beam for radiation therapy

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose The shallow depth of maximum dose and higher dose fall‐off gradient of a 2.5 MV beam along the central axis that is available for imaging on linear accelerators is investigated for treatment of shallow tumors and sparing the organs at risk (OARs) beyond it.
Navid Khaledi, Chris Hayes, Louise Belshaw, Mark Grattan, Rao Khan, James L. Gräfe   +5 more
wiley   +1 more source

Electron-Driven Instabilities in the Solar Wind

Frontiers in Astronomy and Space Sciences, 2022
The electrons are an essential particle species in the solar wind. They often exhibit non-equilibrium features in their velocity distribution function.
Daniel Verscharen, B. D. G. Chandran, B. D. G. Chandran, E. Boella, E. Boella, J. Halekas, M. E. Innocenti, V. K. Jagarlamudi, V. K. Jagarlamudi, A. Micera, V. Pierrard, V. Pierrard, Š. Štverák, Š. Štverák, I. Y. Vasko, I. Y. Vasko, M. Velli, P. L. Whittlesey   +17 more
doaj   +1 more source

Electronic structure of MnSi: The role of electron-electron interactions

Physical Review B, 2006
We present an experimental study of the electronic structure of MnSi. Using x-ray absorption spectroscopy XAS, x-ray photoemission, and x-ray fluorescence, we provide experimental evidence that MnSi has a mixed valence ground state. We show that self-consistent local density approximation supercell calculations cannot replicate the XAS spectra of MnSi,
Carbone F, Zangrando M, Brinkman A, Nicolaou A, Bondino F, Magnano E, Nugroho AA, Parmigiani F, Jarlborg T, van der Marel D   +9 more
openaire   +5 more sources

Interplay of spin-orbit coupling and Coulomb interaction in ZnO-based electron system [PDF]

, 2020
Spin-orbit coupling (SOC) is pivotal for various fundamental spin-dependent phenomena in solids and their technological applications. In semiconductors, these phenomena have been so far studied in relatively weak electron-electron interaction regimes, where the single electron picture holds.
arxiv   +1 more source