Differential equation models for sharp threshold dynamics.

Nps - or - 12 - 003 Naval Postgraduate School Monterey , California Differential Equation Models for Sharp Threshold Dynamics

Comparison between linear and nonlinear models for surge motion of TLP

Tension-Leg Platform (TLP) is a vertically moored floating structure. The platform is permanently mooredby tendons. Surge equation of motion of TLP is highly nonlinear because of large displacement and it should be solved with perturbation parameter in time domain. This paper compare the dynamic motion responses of a TLP in regular sea waves obtained by applying three method in time domain usin...

Computational Method for Fractional-Order Stochastic Delay Differential Equations

Dynamic systems in many branches of science and industry are often perturbed by various types of environmental noise. Analysis of this class of models are very popular among researchers. In this paper, we present a method for approximating solution of fractional-order stochastic delay differential equations driven by Brownian motion. The fractional derivatives are considered in the Caputo sense...

Population dynamics of sharp nose mullet Chelon saliens (Risso, 1810) in Gorgan bay-southeast Caspian Sea

This study was conducted to determine growth parameters and mortality of sharp nose mullet (Cheloc saliens). A total of 442 specimens collected using small beach siene in Gorgan bay from June to October two successive years of 2016 and 2017. The samples included 210 males and 232 females. Growth parameters calculated using Gulland and Holt method, and the length frequency analysis done using EL...

Nonlinear Cable equation, Fractional differential equation, Radial point interpolation method, Meshless local Petrov – Galerkin, Stability analysis

The cable equation is one the most fundamental mathematical models in the neuroscience, which describes the electro-diffusion of ions in denderits. New findings indicate that the standard cable equation is inadequate for describing the process of electro-diffusion of ions. So, recently, the cable model has been modified based on the theory of fractional calculus. In this paper, the two dimensio...