Results 31 to 40 of about 9,395,905 (186)
Singular perturbation for nonlinear boundary-value problems
Asymptotic solutions of a class of nonlinear boundary-value problems are studied. The problem is a model arising in nuclear energy distribution. For large values of the parameter, the differential equations are of the singular-perturbation type and ...
Rina Ling
doaj +1 more source
A Family of Non-rough Cycles in a System of Two Coupled Delayed Generators
In this paper, we consider the nonlocal dynamics of the model of two coupled oscillators with delayed feedback. This model has the form of a system of two differential equations with delay. The feedback function is non-linear, finite and smooth. The main
Aleksandra A. Kashchenko
doaj +1 more source
Relaxation Oscillations in Models of Multi-Species Biocenose
Some families of mathematical models of biological populations are considered. Invariant ratios between the parameters which characterize this or that population are revealed.
S. A. Kaschenko
doaj +1 more source
The Dynamics of the Logistic Equation with Delay and Delayed Control
Dynamical properties of a logistic equation with delay and delay control are studied by asymptotic methods. It is shown that effective control of characteristics of relaxation cycle is possible.
S. A. Kaschenko
doaj +1 more source
Large Sample Comparison of Parameter Estimates in Gamma Raindrop Distributions
Raindrop size distributions have been characterized through the gamma family. Over the years, quite a few estimates of these gamma parameters have been proposed. The natural question for the practitioner, then, is what estimation procedure should be used.
Roger W. Johnson, Donna V. Kliche
doaj +1 more source
On the structure of Painlevé transcendents with a large parameter, II
The authors give a new and interesting result on the structure of Painlevé transcendents with a large parameter, which arise as conditions for isomonodromic deformations (in the sense of Jimbo and Miwa, cf. Physica D. 2, 1981) of certain Schrödinger equations with a large parameter.
Kawai, Takahiro, Takei, Yoshitsugu
openaire +3 more sources
Characterization and Model Parameters of Large Commercial Supercapacitor Cells [PDF]
The paper reports the results of the test and modelling activities carried out on large commercial supercapacitor cells at high current. Four commercials cells, with rated capacitance of 3000 F and rated voltage of 2.7 V, are considered. All cells are submitted to consecutive charge/discharge cycles at constant current.
Morandi, Antonio +7 more
openaire +2 more sources
A systematic approach to parameter optimization and its application to flight schedule simulation software [PDF]
Industrial software often has many parameters that critically impact performance. Frequently, these are left in a sub-optimal configuration for a given application because searching over possible configurations is costly and, except for developer ...
Burke, Edmund K +9 more
core +1 more source
The Impulse-Refractive Mode in the Neural Network with Ring Synaptic Interaction
In the paper, a mathematical model of a neural network with an even number of ring synaptic interaction elements is considered. The model is a system of scalar nonlinear differentialdifference equations, the right parts of which depend on large ...
Margarita M. Preobrazhenskaia
doaj +1 more source
Hydrological models are integrated approximations of complex hydrological phenomena and processes in nature, and have been extensively applied for many practical purposes, such as flood and drought disaster prevention, water resources development ...
Jiaojiao GOU +3 more
doaj +1 more source

