Tags: nonlinear

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  1. 2022-Kalman-Improved Approaches to Discrete and Continuous Logistic Growth

    18 Mar 2022 | | Contributor(s):: Brian Winkel

    2022. Kalman, Dan, Improved Approaches to Discrete and Continuous Logistic Growth. PRIMUS. Preprint at https://maa.tandfonline.com/doi/abs/10.1080/10511970.2022.2040664#.YjUMVurMI_U . Abstract: In the precalculus curriculum, logistic growth generally appears in either a discrete...

  2. 1-190-S-IntroClass

    05 Mar 2022 | | Contributor(s):: Bill Skerbitz

    Students are led step by step through the development of introductory ideas in mathematical modeling with differential equations. They will encounter the fundamental ideas underlying unlimited population growth (exponential models), limited population growth (logistic models), and a coupled...

  3. 9-030-S-WaterHammer

    31 Aug 2021 | | Contributor(s):: Panagiotis D. Scarlatos

    The students will develop and apply a numerical algorithm that solves a system of two nonlinear partial differential equations (PDEs). The equations involved are nonlinear and of hyperbolic type. The problem to be solved is an initial-boundary value problem that describes the time evolution of...

  4. 6-075-S-LorenzSystemSimulation

    27 Aug 2021 | | Contributor(s):: Vladimir Riabov

    The Lorenz system will be examined by students as a simple model of chaotic behavior (also known as strange attractor). MATLAB code has been created to find the numerical solutions of the Lorenz’ system of nonlinear ordinary differential equations using various parameters, as well as to...

  5. 1-104-S-InfectionRisk

    26 Aug 2021 | | Contributor(s):: Qingxia Li

    This project is designed to examine differences between the exponential and logistic growth models in biology and how to apply these models in solving epidemic questions. This project was designed for an introductory section in Calculus II or a course involving ordinary differential equations,...

  6. 4-065-S-GasInjection

    14 Aug 2021 | | Contributor(s):: Vladimir Riabov

    Students will use computer programs (or create their own programming code) based on exponential box-scheme approximations for solving systems of nonlinear differential equations that contain small parameters for the highest derivative terms or singularities in boundary conditions. The uniform...

  7. 6-017-S-OncolyticViruses

    03 Aug 2021 | | Contributor(s):: Iordanka Panayotova, Maila Hallare

    In this project, students explore oncolytic virotherapy using systems of differential equations and numerical simulations. The first activity guides the students in simulating the dynamics between the uninfected cancer cells x(t), the oncolytic virus-infected cancer cells y(t),  and the...

  8. 2021-Brubaker, Phil - Importance of Curve Fitting

    26 Mar 2021 | | Contributor(s):: Phil B Brubaker

    Importance of Curve Fitting Curve fitting data to a continuous math function is commonly done for the following reasons:interpolation and/or extrapolation of data;parameter estimation where derivative values are required;ease to ‘picture’ a technical problem...

  9. 1-139-S-PlantsVsHerbivores

    08 Mar 2021 | | Contributor(s):: Mary Vanderschoot

    In a recent study of plants and herbivores on an island in the North Sea, ecologists made a surprising observation: Instead of more vegetation resulting in more grazers, more vegetation resulted in fewer grazers. Consequently, the ecologists hypothesized that, as the vegetation grew more dense,...

  10. 1-137-S-SheepGraze

    03 Mar 2021 | | Contributor(s):: Mary Vanderschoot

    One of the most well-known mathematical models in ecology is the Lotka-Volterra predator-prey system of differential equations. Initially, this model was used to analyze interactions between two animal populations. But ecologists discovered that it could also be applied to plant (`prey') and...

  11. 6-026-S-FakingGause

    30 Oct 2020 | | Contributor(s):: Brian Winkel

    We use a fake or toy data set to permit discovery of the parameters in a two population protozoan model used to study paramecium and yeast competiton in the 1930's studies of G.~F.~Gause in the Soviet Union.

  12. 1-136-S-MarriageAge

    11 Jun 2020 | | Contributor(s):: Tracy Weyand

    Students will build and analyze a model of the fraction of people who are married (for the first time) by a certain age. This model comes from a paper by Hernes and, in this project, is compared to another model used by Coale.These models are first-order ordinary differential equations (which...

  13. 2020-Winkel, Brian - Remote Teaching Module - Modeling a Falling Column of Water

    07 Jun 2020 | | Contributor(s):: Brian Winkel

    {xhub:include type="stylesheet" filename="pages/resource.css"}{xhub:include type="stylesheet" filename="pages/scudem-accordion.css"}We place here and in the Supporting Docs all the materials in support of the SIMIODE Remote Teaching Module - Modeling the Falling Column of Water.This module...

  14. 1-124-S-WorldPopulation

    30 May 2020 | | Contributor(s):: Lenka Pribylova, Jan Sevcik, Pavel Morcinek, Brian Winkel

    We build models of world population using data to estimate growth rate.CZECH LANGUAGE VERSION  We have placed in Supporting Docs a Czech version of this Student Modeling Scenario. Name will be x-y-S-Title-StudentVersion-Czech.

  15. 6-045-S-CholeraTranmission

    19 Apr 2020 | | Contributor(s):: Urmi Ghosh-Dastidar

    A recent cholera outbreak in Haiti brought public attention to this disease. Cholera, a diarrheal disease, is caused by an intestinal bacterium, and if not addressed in a timely manner may become fatal. During the project described here, the students will learn how to solve and address a...

  16. 2018-Greer, Meredith  and Ella Livesay - Mathematical Epidemiology Goes to College.

    01 Apr 2020 | | Contributor(s):: Brian Winkel

    Greer, Meredith  and Ella Livesay. 2018. Mathematical Epidemiology Goes to College. Math Horizons. 25(3):  8-11.See https://scarab.bates.edu/cgi/viewcontent.cgi?article=1113&context=faculty_publications .From Introduction:Every year waves of illnesses sweep...

  17. 1977-Freedman, H. I. and Paul Waltman - Mathematical models of population interactions with dispersal. I Stability of two habitats with and without a predator

    01 Apr 2020 | | Contributor(s):: Brian Winkel


  18. 2018-Joseph ,G Arul J. and S Balamuralitharan - A Nonlinear differential equation model of Asthma effect of environmental pollution using LHAM

    01 Apr 2020 | | Contributor(s):: Brian Winkel

    Joseph ,G Arul J. and S Balamuralitharan. 2018. A Nonlinear differential equation model of Asthma effect of environmental pollution using LHAM.  IOP Conf. Series: Journal of Physics: Conf. Series. 1000:...

  19. 2007-Choisy, M., J.-F. Guégan, and P. Rohani -Mathematical Modeling of Infectious Diseases Dynamics.

    01 Apr 2020 | | Contributor(s):: Brian Winkel

    Choisy, M., J.-F. Guégan, and P. Rohani1. 2007. Mathematical Modeling of Infectious Diseases...

  20. 2018-Brinks, Ralph - Illness-Death Model in Chronic Disease Epidemiology: Characteristics of a Related, Differential Equation and an Inverse Problem.

    29 Mar 2020 | | Contributor(s):: Brian Winkel

    Brinks, Ralph. 2018. Illness-Death Model in Chronic Disease Epidemiology: Characteristics of a Related, Differential Equation and an Inverse Problem. Computational and Mathematical Methods in Medicine. Volume 2018, Article ID 5091096. 6...