Results 41 to 50 of about 407,249 (301)

Random Photon Absorption Model Elucidates How Early Gain Control in Fly Photoreceptors Arises from Quantal Sampling [PDF]

open access: yes, 2016
Many diurnal photoreceptors encode vast real-world light changes effectively, but how this performance originates from photon sampling is unclear. A 4-module biophysically-realistic fly photoreceptor model, in which information capture is limited by the ...
Bevington   +29 more
core   +1 more source

Forecasting South African grain prices and assessing the non-linear impact of inflation and rainfall using a dynamic Bayesian generalized additive model

open access: yesFrontiers in Applied Mathematics and Statistics
IntroductionAccurate price forecasts and the evaluation of some of the factors that affect the prices of grains are crucial for proper planning and food security.
Albert Antwi   +6 more
doaj   +1 more source

New transmission mechanism for the sustainable and humanistic development of human capital: Demand for the ‘rigidity turn’

open access: yesRUDN journal of Sociology, 2021
The author considers the becoming complex reality as developing nonlinearly and demanding new transmission mechanisms for the formation of human capital and also factors that contribute to changes in these realities: self-reflection of both nature and ...
S. A. Kravchenko
doaj   +1 more source

Nonlinearity-induced localization in a periodically-driven semi-discrete system

open access: yes, 2018
We demonstrate that nonlinearity plays a constructive role in supporting the robustness of dynamical localization in a model which is discrete, in one dimension and continuous in the orthogonal one.
Driben, R.   +4 more
core   +1 more source

Optical Kerr type nonlinearity [PDF]

open access: yes, 2001
The origin of the Kerr type nonlinearity of the medium as a result of the interaction between photons via the Dirac delta-potential is presented in the formalism adopted from the photon wave function approach.
Zalesny, Jaroslaw
core   +2 more sources

Questions of existence and uniqueness of the solution of one class of an infinite system of nonlinear two-dimensional equations [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика
The paper is devoted to the study of one class of infinite systems of nonlinear two-dimensional equations with convex and monotone nonlinearity. The studied  class of nonlinear systems of algebraic equations has both theoretical and practical ...
Petrosyan, Haykanush S.   +2 more
doaj   +1 more source

Nonlinear DNA dynamics: nonlinearity versus dispersion

open access: yes, 2012
In the present paper we study the impact of dispersion and nonlinearity on DNA dynamics. We rely on the helicoidal Peyrard-Bishop model and use the fact that nonlinear DNA dynamics represents an interplay between nonlinearity and dispersion.
Satarić, Miljko V.   +1 more
core   +1 more source

Nonlinearity Induced Critical Coupling [PDF]

open access: yes, 2013
We study a critically coupled system (Opt. Lett., \textbf{32}, 1483 (2007)) with a Kerr-nonlinear spacer layer. Nonlinearity is shown to inhibit null-scattering in a critically coupled system at low powers.
Gopal, Achanta Venu   +2 more
core   +1 more source

Principle Study of a Semi-active Inerter Featuring Magnetorheological Effect

open access: yesFrontiers in Materials, 2019
Inerters are two-terminal mass elements in which the forces applied at the terminals are proportional to relative acceleration between the nodes. The volume and weight of inerters are much smaller than those of any conventional mass element for the same ...
Wei-Min Zhong   +3 more
doaj   +1 more source

Output feedback model predictive control of spacecrafts based on proportional-integral observer

open access: yesSystems Science & Control Engineering, 2022
A novel attitude control algorithm is developed for spacecrafts based on the model predictive control and proportional-integral observer (PIO) in the presence of constraints.
Weiqiang Tang
doaj   +1 more source

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