QUBES will have scheduled maintenance work on Tuesday, December 17, 2024, beginning sometime between 5 pm PST and 11:59 pm PST, with downtime lasting approximately 30 minutes. All running tool sessions will expire during the maintenance window. Please plan accordingly and we do apologize for any inconvenience. close

Text Search:
Applied Filters
    2019-Banuelos_Danet_Flores_Ramos-Epidemiological_Math_Model_Approach_To_Political_System_with_Three_Parties
    A nonlinear compartmental model is derived to study the movement between classes of voters with the assumption of a constant population that is homogeneously mixed.
    141

    views

    49

    downloads

    0

    comments

    0

    adaptations

    1988-Michael Intriligator-Dagobert Brito-A Predator-Prey Model of Guerrilla Warfare
    The authors present a three variable: numbers of guerrillas, numbers of regular (government) soldiers, and size of population controlled by the guerrillas, at time t), nonlinear system of three...
    175

    views

    54

    downloads

    0

    comments

    0

    adaptations

    2003-Givens-Bonfima-Direct observation of normal modes in coupled oscillators
    We propose a simple and inexpensive method to directly observe each normal mode of a system of coupled oscillators, as well as to measure its corresponding frequency, without performing Fourier...
    117

    views

    57

    downloads

    0

    comments

    0

    adaptations

    2014-Vance-Eads-Sensitivity Analysis of a Three-Species Nonlinear Response Omnivory Model with Predator Stage Structure
    We investigate a three-species nonlinear response omnivory model incorporating stage structure in the top predator. The model consists of four coupled ordinary differential equations involving...
    238

    views

    79

    downloads

    0

    comments

    0

    adaptations

    3-110-MilitarySpringMassApplication-ModelingScenario
    The is a collection of different scenarios for the shock system of a trailer. In each scenario, students will transform the shock system of a trailer into a second-order differential equation,...
    257

    views

    210

    downloads

    0

    comments

    0

    adaptations

    6-010-SocialCampaign-ModelingScenario
    The epidemic modeling problem is formulated as a system of three nonlinear, first order differential equations in which three compartments (S, I, and R) of the population are linked.
    276

    views

    221

    downloads

    0

    comments

    0

    adaptations

    4-020-AnIEDBlast-ModelingScenario
    These three exercises offer students a chance to model with second order ordinary differential equations, how they might incorporate a spring-mass system into a larger model, and how they can use...
    244

    views

    579

    downloads

    0

    comments

    0

    adaptations

    2015-Joshi-EtAl-Optimal control of an SIR model with changing behavior through an education campaign
    We study stability analysis and use optimal control theory on the system of differential equations to achieve the goal of minimizing the infected population (while minimizing the cost).
    168

    views

    76

    downloads

    0

    comments

    0

    adaptations

    2018-Weber_Theers_Surmann_Ligges_Weihs-Sensitivity Analysis_of_Ordinary_Differential_Equation_Models
    This report will focus on the sensitivity analysis of ordinary differential equation (ODE) models since they can be used to model so-called Low Frequency Oscillations (LFOs).
    176

    views

    51

    downloads

    0

    comments

    0

    adaptations

    6-068-VisualizingPredator-PreyCycles
    In this modeling scenario, we propose a gentle introduction to limit cycles using nullcline analysis and a spreadsheet graphical approach via the fourth-order Runge-Kutta method. We will be...
    419

    views

    527

    downloads

    0

    comments

    0

    adaptations

    2012-Hassan_Moore-Using projects to stimulate learning in mathematics and engineering mathematics courses
    Given that time is a premium in the academy and project creation is a time consumer, three original projects, which may be injected into any Calculus III, Differential Equations, or Engineering...
    283

    views

    59

    downloads

    0

    comments

    0

    adaptations

    1988-Michael_Intriligator-Dagobert_Brito-A_Predator-Prey_Model_of_Guerrilla_Warfare
    The purpose of this paper is to analyze guerrilla warfare by means of a dynamic model. The model suggests specific paths for the evolution of such ward and how such wars might be fought or combatted.
    175

    views

    65

    downloads

    0

    comments

    0

    adaptations

    6-070-BeerBubbles-ModelingScenario
    The goal of this project is to set up and numerically solve a first-order nonlinear ordinary differential equation (ODE) system of three equations in three unknowns that models beer bubbles that...
    319

    views

    509

    downloads

    0

    comments

    0

    adaptations

    3D FractaL-Tree
    3D FractaL-Tree allows scientists to collect data from actual specimens in the field or laboratory, insert these measurements into a spatially explicit L-system package, and then visually compare...

    Keywords: fractalsL-systems

    1280

    views

    310

    downloads

    0

    comments

    0

    adaptations

    1-118-SolowEconomicGrowth-ModelingScenario
    Students construct and analyze the celebrated Solow-Swan model of economic growth theory. The project is divided into three sequential parts to teach students to understand, develop, and analyze a...
    308

    views

    140

    downloads

    0

    comments

    0

    adaptations

    6-018-ExploringSIRModel-ModelingScenario
    Students will transform, solve, and interpret Susceptible Infected Recovered (SIR) models using systems of differential equation models. The project is progressively divided into three parts to...
    276

    views

    214

    downloads

    0

    comments

    0

    adaptations

    Louse and Human Coevolution
    This module examines the complicated co-evolution of Lice, Humans, and Great Apes
    1991

    views

    1975

    downloads

    0

    comments

    0

    adaptations

    Earth Analytics Bootcamp Course
    The Earth Analytics Bootcamp is a three-week introductory-level course taught by instructors in Earth Lab and is a part of the Professional Certificate in Earth Data Analytics - Foundations at CU...
    1474

    views

    415

    downloads

    0

    comments

    0

    adaptations

    6-017-OncolyticViruses-ModelingScenario
    Students explore oncolytic virotherapy using systems of differential equations and numerical simulations.
    475

    views

    138

    downloads

    0

    comments

    0

    adaptations

    The QUBES Resource System: Integrating open educational practices into diverse education reform communities
    Presentation on the QUBES Resource System given at the 16th Annual Open Education Conference
    1598

    views

    325

    downloads

    0

    comments

    0

    adaptations