Results 51 to 60 of about 45,848 (283)

Analyzing Electronic Excitations and Exciton Binding Energies in Y6 Films

open access: yesAdvanced Functional Materials, EarlyView.
The Y6 molecule is used for increasing the efficiency of organic solar cells. The exciton binding energy is calculated for ensembles of Y6 molecules that are representative of the typically used films. The calculations show that the excitons typically spread out over many molecules.
Sahar Javaid Akram   +2 more
wiley   +1 more source

A Rumor-Spreading Model with Three Identical Time Delays

open access: yesMathematics
Understanding the effect of time delays on rumor spreading is of special importance to curbing the spread of rumors. This article proposes a rumor-spreading model with three identical time delays: a delay associated with the negative influence of a ...
Chunlong Fu   +4 more
doaj   +1 more source

Propagation of Delayed Lattice Differential Equations without Local Quasimonotonicity [PDF]

open access: yes, 2014
This paper is concerned with the traveling wave solutions and asymptotic spreading of delayed lattice differential equations without quasimonotonicity.
Pan, Shuxia
core  

Rateless-Coding-Assisted Multi-Packet Spreading over Mobile Networks

open access: yes, 2014
A novel Rateless-coding-assisted Multi-Packet Relaying (RMPR) protocol is proposed for large-size data spreading in mobile wireless networks. With this lightweight and robust protocol, the packet redundancy is reduced by a factor of $\sqrt n$, while the ...
Dai, Huaiyu   +2 more
core   +1 more source

Quantum Tunneling in the Wigner Representation [PDF]

open access: yes, 1996
Time dependence for barrier penetration is considered in the phase space. An asymptotic phase-space propagator for nonrelativistic scattering on a one - dimensional barrier is constructed.
A. Bonasera   +72 more
core   +2 more sources

All‐in‐One Analog AI Hardware: On‐Chip Training and Inference with Conductive‐Metal‐Oxide/HfOx ReRAM Devices

open access: yesAdvanced Functional Materials, EarlyView.
An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone   +11 more
wiley   +1 more source

Minimal Wave Speed in an Integrodifference System of Predator-Prey Type

open access: yesDiscrete Dynamics in Nature and Society, 2020
This article studies the minimal wave speed of traveling wave solutions in an integrodifference predator-prey system that does not have the comparison principle. By constructing generalized upper and lower solutions and utilizing the theory of asymptotic
Baoju Sun, Fuzhen Wu
doaj   +1 more source

Asymptotic convergence to pushed wavefronts in a monostable equation with delayed reaction

open access: yes, 2014
We study the asymptotic behaviour of solutions to the delayed monostable equation $(*)$: $u_{t}(t,x) = u_{xx}(t,x) - u(t,x) + g(u(t-h,x)),$ $x \in R,\ t >0,$ with monotone reaction term $g: R_+ \to R_+$.
Solar, Abraham, Trofimchuk, Sergei
core   +1 more source

Asymptotic comparison of three spread estimators based on Roll’s model

open access: yesPhysica A: Statistical Mechanics and its Applications, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gao, Yang   +4 more
openaire   +2 more sources

Predicting Atomic Charges in MOFs by Topological Charge Equilibration

open access: yesAdvanced 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

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