Results 51 to 60 of about 1,037,044 (293)
An improved semi-empirical model for the densification of Antarctic firn [PDF]
The Cryosphere, 2011 A firn densification model is presented that simulates steady-state Antarctic firn density profiles, as well as the temporal evolution of firn density and surface height. The model uses an improved firn densification expression that is tuned to fit depth-
S. R. M. Ligtenberg +2 more
doaj +1 more source
Relativistic Energy Density Functional Description of Shape Transition in Superheavy Nuclei [PDF]
, 2012 Relativistic energy density functionals (REDF) provide a complete and accurate, global description of nuclear structure phenomena. A modern semi-empirical functional, adjusted to the nuclear matter equation of state and to empirical masses of deformed ...
A. Parkhomenko +7 more
core +4 more sources
Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry
Advanced Functional Materials, EarlyView.In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite +5 more
wiley +1 more source
Soil Moisture Retrieval Model for Remote Sensing Using Reflected Hyperspectral Information
Remote Sensing, 2019 The variation and the spatial⁻temporal distribution of soil water content have significant effects on heat balance, agricultural moisture, etc.
Jing Yuan +5 more
doaj +1 more source
Современные информационные технологии и IT-образование, 2021 The paper considers the problem of deflection of a circular membrane under the action of a load located at some distance from its center. The task consists in obtaining experimental data on the membrane deflection and constructing semi-empirical ...
Maria Bortkovskaya +6 more
doaj +1 more source
Bayesian Semi-supervised Learning with Graph Gaussian Processes [PDF]
, 2018 We propose a data-efficient Gaussian process-based Bayesian approach to the semi-supervised learning problem on graphs. The proposed model shows extremely competitive performance when compared to the state-of-the-art graph neural networks on semi ...
Colombo, Nicolo +2 more
core +1 more source
A semi-Markov model for price returns
, 2011 We study the high frequency price dynamics of traded stocks by a model of returns using a semi-Markov approach. More precisely we assume that the intraday return are described by a discrete time homogeneous semi-Markov process and the overnight returns ...
D'Amico, Guglielmo, Petroni, Filippo
core +1 more source
Isotopic Effect and Temperature Dependent Intramolecular Excitation Energy Transfer in a Model Donor-Acceptor Dyad [PDF]
, 2010 We consider here the non-adiabatic energy transfer dynamics for a model bi-chromophore system consisting of a perylenediimide unit linked to a ladder-type poly-(para-phenylene) oligomer. Starting from a semi-empirical parameterization of a model electron/
Becker +38 more
core +2 more sources
Predicting Atomic Charges in MOFs by Topological Charge Equilibration
Advanced Functional Materials, EarlyView.An atomic charge prediction method is presented that is able to accurately reproduce ab‐initio‐derived reference charges for a large number of metal–organic frameworks. Based on a topological charge equilibration scheme, static charges that fulfill overall neutrality are quickly generated.
Babak Farhadi Jahromi +2 more
wiley +1 more source
A semi-Markov model with memory for price changes
, 2011 We study the high frequency price dynamics of traded stocks by a model of returns using a semi-Markov approach. More precisely we assume that the intraday returns are described by a discrete time homogeneous semi-Markov which depends also on a memory ...
D’Amico G Petroni F +3 more
core +1 more source