Results 81 to 90 of about 5,981,715 (415)
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose This study aims to evaluate the accuracy of the frameless linear accelerator‐based stereotactic radiosurgery (FSRS) system incorporating cone‐beam CT (CBCT), six degrees of freedom (6‐DoF) couch, room laser, and surface image‐guided (SG) systems.
Hao‐Wen Cheng +4 more
wiley +1 more source
Data‐driven performance metrics for neural network learning
International Journal of Adaptive Control and Signal Processing, EarlyView., 2023 Summary Effectiveness of data‐driven neural learning in terms of both local mimima trapping and convergence rate is addressed. Such issues are investigated in a case study involving the training of one‐hidden‐layer feedforward neural networks with the extended Kalman filter, which reduces the search for the optimal network parameters to a state ...
Angelo Alessandri +2 more
wiley +1 more source
Charge instabilities and electron-phonon interaction in the Hubbard-Holstein model [PDF]
, 2008 We consider the Hubbard-Holstein model in the adiabatic limit to investigate the effects of electron-electron interactions on the electron-phonon coupling. To this aim we compute at any momentum and filling the static charge susceptibility of the Hubbard model within the Gutzwiller approximation and we find that electron-electron correlations ...
arxiv +1 more source
Non-perturbative theory of the electron-phonon coupling and its first-principles implementation [PDF]
arXiv, 2023 The harmonic approximation of ionic fluctuations and the linear coupling between phonons and electrons provide the basic approach to compute, from first principles, the contribution that the nuclei dynamics and its interaction with electrons have on materials' properties.
arxiv
Waiting time distribution for electron transport in a molecular junction with electron-vibration interaction [PDF]
The Journal of Chemical Physics 146, 074102 (2017), 2016 On the elementary level, electronic current consists of individual electron tunnelling events that are separated by random time intervals. The waiting time distribution is a probability to observe the electron transfer in the detector electrode at time $t+\tau$ given that an electron was detected in the same electrode at earlier time $t$.
arxiv +1 more source
Journal of Applied Clinical Medical Physics, EarlyView.Abstract In radiation oncology, inter‐fractional dosimetry using optically stimulated luminescent detectors (OSLDs) ensures accurate plan delivery and patient safety. RadPro International GmbH's myOLSchip system, featuring a beryllium oxide (BeO) OSL dosimeter, reader, and eraser, was characterized and calibrated with a Varian Truebeam for in‐vivo ...
Heath Davis +3 more
wiley +1 more source
Target-Oriented Investigation of Online Abusive Attacks: A Dataset and Analysis
IEEE Access, 2023 Despite a body of research revolving around online abusive language, aiming at different objectives such as detection, diffusion prediction, and mitigation, existing research has seldom looked at factors motivating this behaviour.
Raneem Alharthi +3 more
doaj +1 more source
Electron Structure: Shape, Size and GPDs in QED [PDF]
Phys. Rev. D 90, 113001 (2014), 2014 The shape of the electron is studied using lowest-order perturbation theory. Quantities used to probe the structure of the proton: form factors, generalized parton distributions, transverse densities, Wigner distributions and the angular momentum content are computed for the electron-photon component of the electron wave function.
arxiv +1 more source
What's New at the University of Alaska Southeast William A. Egan Library [PDF]
, 2010 Egan Library Open House; New Electronic Resources; Library Computers; Library's Faculty Resources Page; Remember to contact your library ...
core
Working and Learning with Electronic Performance Support Systems: An Effectiveness Study [PDF]
, 1997 In this study the effectiveness of electronic performance support systems (EPSS) is reported. Some of the expected advantages of EPSS, such as an increase in productivity and improved learning are evaluated with insurance agents using laptop computers ...
Abma, Harmen J. +3 more
core +4 more sources