Results 91 to 100 of about 3,669,081 (378)

Electronic structure of a wide quantum wire in a magnetic field at $ν = 1$ [PDF]

arXiv, 2022
The density functional theory is used to study the electronic structure of a quantum wire in a magnetic field. In a GaAs quantum wire, a critical density has been found, below which the electron density has a strong spatial inhomogeneity. The effect of the disorder potential on the electron density profile in a two-dimensional electron gas is estimated.
arxiv  

An Experimental Study of the Pull-In Voltage in RF MEMS Switches Fabricated by Au Electroplating and Standard Wet Release: Considering the Bridge Geometry

Sensors
Radio Frequency Micro Electro Mechanical Systems (RF MEMS) are devices showing exceptional potential to satisfy the demands of emerging RF electronic technologies, including those considered for high-power applications, such as for long distance ...
Loukas Michalas, George Stavrinidis, Katerina Tsagaraki, Antonis Stavrinidis, George Konstantinidis   +4 more
doaj   +1 more source

Development of a methodology for the characterisation and assessment of biodeteriogens on archaeological surfaces by use of a portable LED-induced fluorescence instrument

Heritage Science, 2022
The present study focuses on the development of a fast, non-invasive methodology, appropriate for the detection and characterization of biodeterioration present on the surface of archaeological/historical stone objects and monuments, by exploiting the ...
A. Giakoumaki, A. Philippidis, P. Siozos, I. Pyrri, D. Anglos, P. Pouli   +5 more
doaj   +1 more source

Electronic structure of multilayer graphene

, 2008
We study the electronic structure of multilayer graphene using a $\pi$-orbital continuum model with nearest-neighbor intralayer and interlayer tunneling.
MacDonald, A. H., Min, Hongki
core   +1 more source

Data‐driven forecasting of ship motions in waves using machine learning and dynamic mode decomposition

International Journal of Adaptive Control and Signal Processing, EarlyView.
Summary Data‐driven forecasting of ship motions in waves is investigated through feedforward and recurrent neural networks as well as dynamic mode decomposition. The goal is to predict future ship motion variables based on past data collected on the field, using equation‐free approaches.
Matteo Diez, Mauro Gaggero, Andrea Serani   +2 more
wiley   +1 more source

Electron-Phonon Scattering in Semiconductor Structures with One-Dimensional Electron Gas [PDF]

Phys. Low-Dim. Struct. 1, 17-19 (2006), 2006
In this study a method for calculation of the electron-phonon scattering rate in semiconductor structures with one-dimensional electron gas is developed. The energy uncertainty of electrons is taken into account.
arxiv  

Exploring covalently bonded diamondoid particles with valence photoelectron spectroscopy

, 2013
We investigated the valence electronic structure of diamondoid particles in the gas phase, utilizing valence photoelectron spectroscopy. The samples were singly or doubly covalently bonded dimers or trimers of the lower diamondoids.
Chernish, Lesya V., Fokin, Andrey A., Gunchenko, Pavel A., Knecht, Andre, Koso, Tetyana V., Möller, Thomas, Rander, Torbjörn, Richter, Robert, Schreiner, Peter R., Zimmermann, Tobias   +9 more
core   +1 more source

ELECTRONIC STRUCTURE OF GE IN SIO2 [PDF]

, 2002
It is argued that one-electron theory is insufficient to account for the origin of the observed spectra of Ge in SiO2 ( alpha -quartz) crystals. A simple model is employed to show that impurity states responsible for ESR spectra of SiO2:Ge are stabilised
HAGON, JP, JAROS, M, STONEHAM, AM
core   +1 more source

Electronic-structural dynamics in graphene [PDF]

Structural Dynamics, 2016
We review our recent time- and angle-resolved photoemission spectroscopy experiments, which measure the transient electronic structure of optically driven graphene. For pump photon energies in the near infrared (ℏωpump=950 meV), we have discovered the formation of a population-inverted state near the Dirac point, which may be of interest for the design
Andrea Cavalleri, Andrea Cavalleri, Isabella Gierz   +2 more
openaire   +6 more sources

Random Learning Leads to Faster Convergence in ‘Model‐Free’ ILC: With Application to MIMO Feedforward in Industrial Printing

International Journal of Adaptive Control and Signal Processing, EarlyView.
The cost as a function of the number of experiments for a non‐symmetric 21×21$$ 21\times 21 $$ system. Four approaches are shown: the proposed stochastic conjugate gradient ILC (SCGILC) method (), deterministic conjugate gradient ILC (), stochastic gradient descent ILC () and deterministic gradient descent ILC ().
Leontine Aarnoudse, Tom Oomen
wiley   +1 more source