Results 221 to 230 of about 69,760 (269)

Asymmetric multiple-image encryption based on coupled logistic maps in fractional Fourier transform domain

Optics and Lasers in Engineering, 2014
Abstract A multiple-image encryption scheme is proposed based on the asymmetric technique, in which the encryption keys are not identical to the decryption ones. First, each plain image is scrambled based on a sequence of chaotic pairs generated with a system of two symmetrically coupled identical logistic maps.
Liansheng Sui, Kuaikuai Duan, Junli Liang, Zhiqiang Zhang, Haining Meng   +4 more
semanticscholar   +3 more sources

Hyperspectral anomaly detection with local correlation fractional Fourier transform and vector pulse coupled neural network

Infrared Physics & Technology, 2022
Pei Xiang, Huan Li, Jiangluqi Song, Sijian Hou, Huixin Zhou   +4 more
semanticscholar   +3 more sources

$$L^p$$-Sobolev spaces and coupled potential operators associated with coupled fractional Fourier transform

Journal of Pseudo-Differential Operators and Applications
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Das, Shraban, Mahato, Kanailal, Das, Sourav   +2 more
openaire   +3 more sources

Quaternionic Coupled Fractional Fourier Transform on Boehmians

, 2023
R. Kamalakkannan, R. Roopkumar, A. Zayed
openaire   +2 more sources

Short-time coupled fractional Fourier transform and asymptotic behaviour of distributions

Integral transforms and special functions
Katerina Saneva, Astrit Ferizi
openalex   +2 more sources

Two-Dimensional Coupled Fractional Fourier Transform (CFrFT)

Ahmed I. Zayed
openaire   +2 more sources

Short-Time Coupled Fractional Fourier Transform and Uncertainty Relations

Ahmed I. Zayed
openaire   +2 more sources

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A fast normal splitting preconditioner for attractive coupled nonlinear Schrödinger equations with fractional Laplacian

arXiv.org, 2023
A linearly implicit conservative difference scheme is applied to discretize the attractive coupled nonlinear Schr\"odinger equations with fractional Laplacian.
Yan Cheng, Xi Yang
semanticscholar   +1 more source

Comprehensive Compositional and Structural Comparison of Coal and Petroleum Asphaltenes Based on Extrography Fractionation Coupled with Fourier Transform Ion Cyclotron Resonance MS and MS/MS Analysis

Energy & Fuels, 2020
A recently developed extrography separation method fractionates petroleum asphaltenes based on their ionization efficiency, which correlates with polarity, aggregation tendency, and asphaltene stru...
Sydney F. Niles, Martha L. Chacón-Patiño, Donald F. Smith, Ryan P. Rodgers, Alan G. Marshall   +4 more
openaire   +1 more source

Online coupling of thermal field-flow fractionation and Fourier transform infrared spectroscopy as a powerful tool for polymer characterization

Journal of Chromatography A, 2019
The rapid growth and increasing importance of complex polymers has accelerated the need for advancement in characterization techniques. The analysis of such materials is challenging and the determination of different molecular parameters requires the combination of different advanced analytical techniques.
N.W. Radebe, T. Beskers, G. Greyling, H. Pasch   +3 more
openaire   +2 more sources