Results 51 to 60 of about 199,454 (138)

Dynamical analysis and the soliton solutions of (2+1)-dimensional Heisenberg ferro-magnetic spin chains model with beta fractional derivative

open access: yesScientific Reports
This paper investigates the soliton solutions and dynamical analysis of (2+1)-dimensional Heisenberg ferro-magnetic spin chains model with beta fractional derivative, which is transformed into the ordinary differential equation. By using the second-order
Jie Luo
doaj   +1 more source

Dynamical behavior analysis and soliton solutions of the generalized Whitham–Broer–Kaup–Boussineq–Kupershmidt equations

open access: yesResults in Physics
This article investigates the dynamical behavior analysis and soliton solutions of the generalized Whitham–Broer–Kaup–Boussineq–Kupershmidt equations in fluid flow dynamics and plasma waves.
Jie Luo
doaj   +1 more source

Mathematical modeling of structural indices of thyroid gland in thyroid pathology [PDF]

open access: yesСаратовский научно-медицинский журнал, 2014
Purpose: the complete analysis of the morphological parameters of the thyroid gland in various forms of thyroid pathology by methods of mathematical modeling. Material and Methods.
Kalmin O.V., Kalmin О.О..
doaj  

A Novel Frequency-Domain Approach for the Exact Range of Imaginary Spectra and the Stability Analysis of LTI Systems With Two Delays

open access: yesIEEE Access, 2020
This paper presents a novel frequency-domain approach to reveal the exact range of the imaginary spectra and the stability of linear time-invariant systems with two delays. First, an exact relation, i.e., the Rekasius substitution, is used to replace the
Chengzhi Yuan   +5 more
doaj   +1 more source

Exact solutions of perturbed stochastic NLSE with generalized anti-cubic law nonlinearity and multiplicative white noise

open access: yesResults in Physics
The paper retrieves the perturbed stochastic nonlinear Schrödinger equation in magneto-optic waveguides with generalized anti-cubic law nonlinearity and multiplicative noise in the Itô sense.
Xin-Zhou Xu, Ming-Yue Wang
doaj   +1 more source

Arcwise Analytic Stratification, Whitney Fibering Conjecture and Zariski Equisingularity

open access: yes, 2017
In this paper we show Whitney's fibering conjecture in the real and complex, local analytic and global algebraic cases. For a given germ of complex or real analytic set, we show the existence of a stratification satisfying a strong (real arc-analytic ...
Parusiński, Adam, Paunescu, Laurentiu
core  

Chemical characterization of commercial and single-variety avocado oils

open access: yesGrasas y Aceites, 2018
This work aimed to determine the major and minor compounds of avocado oils. Mono-varietal oils from the Bacon, Fuerte, Hass, and Pinkerton cultivars were obtained by means of an Abencor® system, while commercial oils from Brazil, Chile, Ecuador and New ...
G. D. Fernandes   +4 more
doaj   +1 more source

On the Number of Positive Solutions to a Class of Integral Equations

open access: yes, 2002
By using the complete discrimination system for polynomials, we study the number of positive solutions in {\small $C[0,1]$} to the integral equation {\small $\phi (x)=\int_0^1k(x,y)\phi ^n(y)dy$}, where {\small $k(x,y)=\phi_1(x)\phi_1(y)+\phi_2(x)\phi_2 ...
Wang, Long, Yu, Wensheng, Zhang, Lin
core   +1 more source

Applications of complete discrimination system approach to analyze the dynamic characteristics of the cubic–quintic nonlinear Schrodinger equation with optical soliton and bifurcation analysis

open access: yesResults in Physics
In this research, the complete discriminant system (CDS) of polynomial method (CDSPM) will be applied to analyze the dynamic characteristics of the cubic–quintic nonlinear Schrodinger equation (CQNLSE) with an additional anti-cubic nonlinear term (CQNLSE-
Aly R. Seadawy   +3 more
doaj   +1 more source

Performance of Nitrogen Removal and Biofilm-Associated Microbial Community in a Compact Marine Shrimp Recirculating Aquaculture System with MBBR

open access: yesMicroorganisms
To address ammonium nitrogen (NH4+-N) and nitrite accumulation in intensive marine shrimp aquaculture, a marine recirculating aquaculture system (RAS) for Penaeus vannamei centered on a moving bed biofilm reactor (MBBR) was constructed to investigate the
Jiayan Sun   +8 more
doaj   +1 more source

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