Results 81 to 90 of about 10,853,875 (318)
Sidelobe Level Reduction in the ACF of NLFM Signals Using the Smoothing Spline Method
IEEE AccessThe high level of sidelobes in the autocorrelation function of the nonlinear frequency modulation signal is a challenge. One of the conventional methods to reduce the sidelobe levels is to use the principle of stationary phase.
Roohollah Ghavamirad +2 more
doaj +1 more source
Autocorrelation function of velocity increments time series in fully developed turbulence [PDF]
, 2009 In fully developed turbulence, the velocity field possesses long-range correlations, denoted by a scaling power spectrum or structure functions. Here we consider the autocorrelation function of velocity increment Δuℓ(t) at separation time ℓ.
Yongxiang Huang +4 more
semanticscholar +1 more source
Enhancing Triplet Excitons Lifetime Through Controlled Intermolecular Interactions
Advanced Optical Materials, EarlyView.Singlet fission (SF) is investigated in pentacene embedded in a surface‐anchored metal–organic framework, enabling a molecular arrangement inaccessible in pure organic crystals. This architecture changes the singlet fission dynamics significantly and enhances the triplet lifetime by almost four orders of magnitude.
Martin Richter +9 more
wiley +1 more source
Derivation of correlation dimension from spatial autocorrelation functions.
PLoS ONEBackgroundSpatial complexity is always associated with spatial autocorrelation. Spatial autocorrelation coefficients including Moran's index proved to be an eigenvalue of the spatial correlation matrixes. An eigenvalue represents a kind of characteristic
Yanguang Chen
doaj +1 more source
Nonergodisity of a time series obeying L\'evy statistics [PDF]
, 2005 Time-averaged autocorrelation functions of a dichotomous random process switching between 1 and 0 and governed by wide power law sojourn time distribution are studied.
Barkai, Eli, Margolin, Gennady
core +1 more source
Advanced Photonics Research, EarlyView.This review highlights recent advances in accelerating luminescence in nanostructures through cooperative emission, resonator coupling, and nonlocal light–matter interactions. By unifying concepts such as excitonic superradiance, superfluorescence, and the plasmonic Purcell effect, it reveals physical limits of ultrafast emission and their potential ...
Masaaki Ashida +3 more
wiley +1 more source
Asymptotic Expansion for the Magnetoconductance Autocorrelation Function
, 1998 We complement a recent calculation (P.B. Gossiaux and the present authors, Ann. Phys. (N.Y.) in press) of the autocorrelation function of the conductance versus magnetic field strength for ballistic electron transport through microstructures with the ...
Altland +20 more
core +1 more source
Sharp Diamond Needles for Single‐Photon Emission
Advanced Photonics Research, EarlyView.We study the morphological evolution of single‐crystal diamond needles oxidized at 650–700 °C. Electron microscopy and photoluminescence reveal temperature‐ and time‐dependent sharpening, length reduction, and surface modifications affecting tip properties.
Mariam Quarshie +9 more
wiley +1 more source
The Autocorrelation Function Denoising Algorithm Based on Convolutional Neural Networks
IEEE AccessTo enhance the image reconstruction quality of the Nth-order linear (NL) linear algorithm, this study proposes a convolutional neural network (CNN)-based denoising method, named Dilated Conv-Resnet model, that processes noisy electric field temporal ...
Xiaojuan Zhang +5 more
doaj +1 more source
INFORMATION PROCESSING WITH AN OPTICAL SENSOR WHEN INCOMPLETE INITIAL INFORMATION
Adaptivni Sistemi Avtomatičnogo Upravlinnâ, 2019 The range of tasks, solved by the properties of classification and generalization, is quite broad. However, the quality of solving to the problem, for one reason or another, is not always the same.
Igor Parkhomey +3 more
doaj +1 more source