Results 51 to 60 of about 13,243,241 (294)
Applied Economic Perspectives and Policy, EarlyView.ABSTRACT This study examines interval selection in the Pasture, Rangeland, and Forage Rainfall Index (PRF‐RI) program and evaluates how uniform premium subsidy rates affect optimal interval selections. Using South Dakota as a case study, we show a trend of increasing selection of nonproduction intervals from 2013 to 2024, raising concerns about program
Whoi Cho, Matthew Diersen
wiley +1 more source
Bifurcation and Dynamics Analysis of a Piecewise-Linear van der Pol Equation
AxiomsIn this study, we examine the bifurcations and dynamics of a piecewise linear van der Pol equation—a model that captures self-sustained oscillations and is applied in various scientific disciplines, including electronics, neuroscience, biology, and ...
Wenke Li, Nanbin Cao, Xia Liu
doaj +1 more source
The The Van der Pol equation: qualitative and numerical study
, 2023 This expositive paper aims at the study of nonlinear equations, focused on the van der Pol equation, including deduction, qualitative analysis, and numerical examples.
Pinto, Vinícius Justen +1 more
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Applied Economic Perspectives and Policy, EarlyView.ABSTRACT Disruptions in global fertilizer markets and climate targets have increased interest in fossil‐free mineral nitrogen fertilizers. This study examines farmers' preferences for conventional (fossil‐based) and fossil‐free fertilizers using a labeled discrete choice experiment with 211 Swedish farmers.
Nasir Adam +5 more
wiley +1 more source
Mathematics, 2021 In this paper, we deal with some applications of the network simulation method (NMS) to the non-linear differential equations derived of a parametric family associated to stated problems by Newton in and others like the parabolic mirror and van der Pol ...
Joaquín Solano +2 more
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Block Backward Differentiation Formula Method for Solving Van der Pol Equation [PDF]
The Van der Pol equation is often used as a basic model for oscillatory systems in physics and biology, such as the interaction of two plates on geological faults as well as oscillations in various electrical and electronic systems.
Febrianti, Werry, Saputra, Jova Edri
core +1 more source
Return and Volatility Spillovers Among Major Cotton Markets
Agribusiness, EarlyView.ABSTRACT This study explores return and volatility transmission among major cotton markets. Several events have disrupted cotton supply and demand in recent years, leading to heightened price volatility and significant shifts in market interconnections.
Susmitha Kalli +3 more
wiley +1 more source
, 2008 In this work, we present the basic theoretical efforts that are known in order to deal with non-trivial solutions of the Van der Pol oscillator, such as theory of average, successive approximations and symbolic dynamics. We also construct a set of diagrams (bifurcation, 2D and 3D Fourier power spectra) and maps, based on numerical investigations ...
openaire +2 more sources
The Power of Unity: Collective Action and Smallholder Agricultural Performance in West Africa
Agribusiness, EarlyView.ABSTRACT We analyze the impact of collective action through farmer‐based organizations (FBOs) on smallholders' farm performance and income inequality in Ghana, Benin, The Gambia, and Mali. We find that FBO membership increases cereal yield in Ghana and The Gambia, legume yield in Mali, ruminant numbers in Benin and The Gambia, and total farm income in ...
Emmanuel Donkor +3 more
wiley +1 more source
Galoisian and qualitative approaches to linear Polyanin-Zaitsev vector fields
Open Mathematics, 2018 In this paper we study a particular parametric family of differential equations, the so-called Linear Polyanin-Zaitsev Vector Field, which has been introduced in a general case in [1] as a correction of a family presented in [2].
Acosta-Humánez Primitivo B. +2 more
doaj +1 more source