activity
20152026
most citedThe dynamics of Wolf numbers based on nonlinear dynamo with magnetic helicity: comparisons with observations

20 citations · 57 across the 8 of their papers we have counts for

collaborators

8 papers

cs.CR2026

Image Encryption Algorithm Based on Convolutional Neural Networks and Dynamic S-Box Generation

Ans Ibrahim Mahameed, Fadhil Abbas Fadhil, Maryam Mahdi Alhusseini +2

The paper proposes a dynamic approach to image encryption, combining the use of Convolutional Neural Networks (CNNs) and classical cryptography to improve the security and flexibil…

cs.CR2026

A High-Performance Fractal Encryption Framework and Modern Innovations for Secure Image Transmission

Sura Khalid Salsal, Eman Shaker Mahmood, Farah Tawfiq Abdul Hussien +3

The current digital era, driven by growing threats to data security, requires a robust image encryption technique. Classical encryption algorithms suffer from a trade-off among sec…

astro-ph.SR2024★ 1 cited

Forecast of solar activity based on mean-field dynamo model and neural network

Nathan Kleeorin, Kirill Kuzanyan, Nikolai Safiullin +4

We discuss a prediction of the solar activity on a short time-scale applying the method based on a combination of a nonlinear mean-field dynamo model and the artificial neural netw…

astro-ph.SR2023★ 4 cited

Magnetic fields of low-mass main sequences stars: Nonlinear dynamo theory and mean-field numerical simulations

N. Kleeorin, I. Rogachevskii, N. Safiullin +2

Our theoretical and numerical analysis have suggested that for low-mass main sequences stars (of the spectral classes from M5 to G0) rotating much faster than the Sun, the generate…

astro-ph.SR2020★ 17 cited

The mean tilt of sunspot bipolar regions: theory, simulations and comparison with observations

N. Kleeorin, N. Safiullin, K. Kuzanyan +3

A theory of the mean tilt of sunspot bipolar regions (the angle between a line connecting the leading and following sunspots and the solar equator) is developed. A mechanism of for…

astro-ph.SR2018★ 5 cited

Large Scale Properties of Tilt of Sunspot Groups and Joy's Law Near The Solar Equator

K. M. Kuzanyan, N. Safiullin, N. Kleeorin +2

We present a physical mechanism of formation of tilt angles of sunspots due to the process of formation of active regions below the solar photosphere. The contribution of Coriolis…

astro-ph.SR2017★ 10 cited

Nonlinear mean-field dynamo and prediction of solar activity

N. Safiullin, N. Kleeorin, S. Porshnev +2

We apply a nonlinear mean-field dynamo model which includes a budget equation for the dynamics of Wolf numbers to predict solar activity. This dynamo model takes into account the a…

astro-ph.SR2015★ 20 cited

The dynamics of Wolf numbers based on nonlinear dynamo with magnetic helicity: comparisons with observations

Ya. Kleeorin, N. Safiullin, N. Kleeorin +3

We investigate the dynamics of solar activity using a nonlinear one-dimensional dynamo model and a phenomenological equation for the evolution of Wolf numbers. This system of equat…