Results 51 to 60 of about 5,981 (227)

Magneto-Rossby waves in the solar tachocline and the annual variations in solar activity

, 2019
Annual oscillations have been detected in many indices of solar activity during many cycles. Recent multi spacecraft observations of coronal bright points revealed slow retrograde toroidal phase drift (with the speed of 3 m/s of 1 yr oscillations, which ...
Balleste, Jose Luis, Carbonell, Marc, Gachechiladze, Tamar, Gurgenashvili, Eka, Oliver, Ramon, Ramishvili, Giorgi, Zaqarashvili, Teimuraz V.   +6 more
core   +1 more source

Neuromorphic Photonic Processing and Memory With Spiking Resonant Tunneling Diode Neurons and Neural Networks

Advanced Intelligent Systems, EarlyView.
This work shows resonant tunneling diode‐based opto‐electronic spiking neurons enabling fast edge detection in time series, a two‐layer photonic spiking neural network for complex classification, and a depth‐tunable photonic spiking memory system. Neuromorphic computing—modeled after the functionality and efficiency of biological neural systems—offers ...
Dafydd Owen‐Newns, Joshua Robertson, Giovanni Donati, Qusay Al‐Taai, José Figueiredo, Edward Wasige, Kathy Lüdge, Bruno Romeira, Antonio Hurtado   +8 more
wiley   +1 more source

Multifractal detrended fluctuation analysis of nonstationary time series [PDF]

, 2002
We develop a method for the multifractal characterization of nonstationary time series, which is based on a generalization of the detrended fluctuation analysis (DFA).
Alados, Amaral, Armin Bunde, Arneodo, Arneodo, Arneodo, Arneodo, Arneodo, Ashkenazy, Ashkenazy, Bacry, Bahar, Barabási, Blesic, Buldyrev, Buldyrev, Bunde, Chen, Eva Koscielny-Bunde, Feder, H.Eugene Stanley, Hausdorff, Hu, Ivanov, Ivanov, Ivanova, Ivanova, Jaffard, Jan W. Kantelhardt, Kantelhardt, Kantelhardt, Koscielny-Bunde, Liu, Makse, Malamud, Mantegna, Muzy, Muzy, Nakao, Ossadnik, Peitgen, Peng, Peng, Shlesinger, Shlomo Havlin, Silchenko, Stephan A. Zschiegner, Talkner, Taqqu, Vandewalle, Vandewalle   +50 more
core   +2 more sources

A new approach for solving Duffing equations involving both integral and non-integral forcing terms

Ain Shams Engineering Journal, 2014
In this paper a Legendre wavelet operational matrix of derivative (LWOM) is used to solve the Duffing equation involving both integral and non-integral forcing terms with separated boundary conditions.
S. Balaji
doaj   +1 more source

A numerical technique for solving neutral Hilfer fractional differential equation with constant delay using Legendre wavelet method

Boundary Value Problems
This study aims to explore the Legendre wavelet method for numerically solving neutral fractional differential equations with constant delay using fractional derivatives in the Hilfer sense.
Kanagaraj Muthuselvan, Nachiappan Nithya, Fahad Aljuaydi, Kottakkaran Sooppy Nisar   +3 more
doaj   +1 more source

A numerical technique based on operational matrices for solving nonlinear integro-differential equations [PDF]

Iranian Journal of Numerical Analysis and Optimization, 2014
This paper presents a computational method for solving two types of integro-differential equations, system of nonlinear high order Volterra-Fredholm integro-differential equation(VFIDEs) and nonlinear fractional order integro-differential equations.
A. Golbabai
doaj   +1 more source

A Numerical Method for Pricing Discrete Double Barrier Option by Legendre Multiwavelet

, 2017
In this Article, a fast numerical numerical algorithm for pricing discrete double barrier option is presented. According to Black-Scholes model, the price of option in each monitoring date can be evaluated by a recursive formula upon the heat equation ...
Milev, Mariyan, Sobhani, Amirhossein
core   +1 more source

Estimation and rapid identification of later stages during embryonic development of the oviparous lizard Sceloporus aeneus (Squamata: Phrynosomatidae)

The Anatomical Record, EarlyView.
Abstract Stages of embryonic development for reptiles have been presented in tables that may include all or part of embryonic development. When oviposition occurs in some lizards, embryos are already in the later stages of development; likewise, the size of the eggs increases as incubation time progresses.
Nivia Rocio Antonio‐Rubio, Maricela Villagrán‐SantaCruz, Martha Elena Díaz‐Hernández, Norma Moreno‐Mendoza   +3 more
wiley   +1 more source

Numerical solution of two-dimensional fractional order Volterra integro-differential equations

AIP Advances, 2021
The present paper is concerned with the implementation of the optimal homotopy asymptotic method to find the approximate solutions of two-dimensional fractional order Volterra integro-differential equations. The technique’s applicability and validity are
Sumbal Ahsan, Rashid Nawaz, Muhammad Akbar, Kottakkaran Sooppy Nisar, Kholod M. Abualnaja, Emad E. Mahmoud, Abdel-Haleem Abdel-Aty   +6 more
doaj   +1 more source

Numerical Integration Based on Linear Legendre Multi Wavelets

Journal of Physics: Conference Series, 2018
In the present work, a new direct computational method for solving definite integrals based on linear Legendre multi wavelets is introduced. This approach is an improvement of previous methods which are based on Haar wavelets functions. An algorithm using properties of the linear Legendre multi wavelets is developed in order to find numerical ...
Mohammad Hasan Abdul Sathar, Ahmad Fadly Nurullah Rasedee, Anvarjon A. Ahmedov, Muhammad Asyraf Asbullah   +3 more
openaire   +1 more source