Results 91 to 100 of about 72,925 (302)

Model for Estimation of Bounds in Digital Coding of Seabed Images [PDF]

Radioengineering, 2015
This paper proposes the novel model for estimation of bounds in digital coding of images. Entropy coding of images is exploited to measure the useful information content of the data.
A. Samcovic
doaj  

Switchable Magnonic Crystals Based on Spin Crossover/CrSBr Heterostructures

Advanced Materials, EarlyView.
Multiscale modeling is employed to investigate the functionality of a light‐controlled, tunable magnonic crystal based on spin‐crossover Fe‐pz molecules integrated with a monolayer of CrSBr. Ab initio simulations confirm that the molecules remain functional on the CrSBr surface, while a semiclassical elastic model demonstrates that light‐induced ...
Andrei Shumilin, Sourav Dey, Denisa Coltuneac, Laurentiu Stoleriu, José J. Baldoví   +4 more
wiley   +1 more source

Optical Soliton Solutions of the (3+1)-Dimensional Stochastic Nonlinear Schrödinger Equation via the Sine-Gordon Equation Method

Journal of Mathematical Sciences and Modelling
This paper addresses the $(3+1)$-dimensional nonlinear Schrödinger equation in the presence of multiplicative white noise, which models the impact of stochastic perturbations on the propagation of nonlinear optical waves in dispersive media.
Yakup Yıldırım
doaj   +1 more source

Finite post synaptic potentials cause a fast neuronal response

Frontiers in Neuroscience, 2011
A generic property of the communication between neurons is the exchange of pulsesat discrete time points, the action potentials. However, the prevalenttheory of spiking neuronal networks of integrate-and-fire model neuronsrelies on two assumptions: the ...
Moritz eHelias, Moritz eDeger, Stefan eRotter, Stefan eRotter, Markus eDiesmann, Markus eDiesmann, Markus eDiesmann, Markus eDiesmann   +7 more
doaj   +1 more source

Effects of White Noise on Parametric Resonance in   4 Theory [PDF]

Progress of Theoretical Physics, 2005
We investigate the effects of white noise on parametric resonance in λφ 4 theory. The potential V (φ) in this study is 1 m 2 φ 2 + 1 gφ 3 + 1 λφ 4 . A Mathieu-like equation is derived and the derived equation is applied to a partially thermalized system. The magnitudes of the amplifications are extracted by solving the equations numerically for various
openaire   +1 more source

Selection of thresholding scheme for image noise reduction on wavelet components using Bayesian estimation

, 2004
Methods for image noise reduction based on wavelet analysis perform by first decomposing the image and then by applying non-linear compression functions on the wavelet components.
De Stefano, A., Collis, W.B., White, P.R.   +2 more
core   +1 more source

Stochastic resonance in electrical circuits—I: Conventional stochastic resonance. [PDF]

, 1999
Stochastic resonance (SR), a phenomenon in which a periodic signal in a nonlinear system can be amplified by added noise, is introduced and discussed. Techniques for investigating SR using electronic circuits are described in practical terms.
Luchinsky, D. G., MANNELLA, RICCARDO, McClintock PVE, Stocks NG, Mannella, R., McClintock, Peter V. E., Luchinsky DG, Stocks, N. G.   +7 more
core   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

RANDOM OR DETERMINISTIC TREND: A NEW TEST BASED ON THE TRADITIONAL THEORY TENDENCIA ALEATORIA O DETERMINÍSTICA: UNA NUEVA PRUEBA BASADA EN LA TEORÍA TRADICIONAL

Revista Colombiana de Estadística, 2009
Several procedures to test the null hypothesis on the random or deterministic origin of the trend in a time series are found in the specialized literature.
Castaño Elkin, Martínez Jorge
doaj  

Analytical Solutions for Generalized Stochastic HSC-KdV Equations with Variable Coefficients Using Hermite Transform and F-Expansion Method

Axioms
This study focuses on analyzing the generalized HSC-KdV equations characterized by variable coefficients and Wick-type stochastic (Wt.S) elements. To derive white noise functional (WNF) solutions, we employ the Hermite transform, the homogeneous balance ...
Mohammed Zakarya, Nadiah Zafer Al-Shehri, Hegagi M. Ali, Mahmoud A. Abd-Rabo, Haytham M. Rezk   +4 more
doaj   +1 more source