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1901
Modeling colony collapse disorder in honeybees as a contagion
Published 2014-08-01“…The system of three ordinary differential equations accounts for multiple hive population behaviors including Allee effects and colony collapse. …”
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1902
Importance of Activation Energy on Magnetized Dissipative Casson-Maxwell Fluid through Porous Medium Incorporating Chemical Reaction, Joule Heating, and Soret Effects: Numerical St...
Published 2024-01-01“…The method transforms partial differential equations originating in fluidic systems into nonlinear differential equation systems with the proper degree of similarity which is subsequently resolved utilizing the Lobatto IIIA technique’s powerful computing capabilities. …”
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1903
Modeling the Effects of Nonpharmaceutical Interventions on COVID-19 Spread in Kenya
Published 2020-01-01“…The resulting system of ordinary differential equations (ODEs) is solved using fourth-order and fifth-order Runge–Kutta methods. …”
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1904
Douglas' Factorization Theorem and Atomic System in Hilbert Pro-$C^{\ast}$-Modules
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1905
DYNAMIC MODEL OF THE BUDGET OF AN EDUCATIONAL INSTITUTION
Published 2024-12-01“…Methodology: modeling, theory of solving differential equations. Results: a modified Keynes model has been developed, allowing for the calculation and optimization of the budget of educational organizations. …”
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1906
A Simple Mathematical Model of Cyclic Circadian Learning
Published 2014-01-01“…By the use of these functions and by formalism of differential equations, the concurrent processes of learning and forgetting are described mathematically. …”
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1907
Analysis of electroelastic frictionless contact problems with adhesion
Published 2006-01-01“…The proofs are based on arguments of time-dependent variational inequalities, differential equations, and fixed point. Moreover, we prove that the solution of the Signorini contact problem can be obtained as the limit of the solution of the contact problem with normal compliance as the stiffness coefficient of the foundation converges to infinity.…”
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1908
Viscous Flow over Nonlinearly Stretching Sheet with Effects of Viscous Dissipation
Published 2012-01-01“…The similarity transformation reduces the time-independent boundary layer equations for momentum and thermal energy into a set of coupled ordinary differential equations. The obtained equations, including nonlinear equation for the velocity field 𝑓 and differential equation by variable coefficient for the temperature field 𝜃, are solved numerically by using the fourth order of Runge-Kutta integration scheme accompanied by shooting technique with Newton-Raphson iteration method. …”
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1909
Leveraging dynamics informed neural networks for predictive modeling of COVID-19 spread: a hybrid SEIRV-DNNs approach
Published 2025-01-01“…This work integrates differential equations with deep neural networks to predict time-varying parameters in the SEIRV model. …”
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1910
Analysis and Enhancements of a Prolific Macroscopic Model of Epilepsy
Published 2016-01-01“…Specifically, we analyze three aspects of the models: (1) Using dynamical systems analysis, we demonstrate and explain the presence of direct current potentials in the simulated EEG that were previously undocumented. (2) We explain how the system was not ideally formulated for numerical integration of stochastic differential equations. A reformulated system is developed to support proper methodology. (3) We explain an unreported contradiction in the published model specification regarding the use of a mathematical reduction method. …”
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1911
Improvement of Image Compression by Changing the Mathematical Equation Style in Communication Systems
Published 2022-01-01“…The test images for these patterns showed a discrepancy in the image resolution when the compression coefficient was increased, as the results using three types of image compression methods proved a clear superiority when using “partial differential equations (PDE)”.…”
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1912
New Phase-Fitted and Amplification-Fitted Fourth-Order and Fifth-Order Runge-Kutta-Nyström Methods for Oscillatory Problems
Published 2013-01-01“…Two new Runge-Kutta-Nyström (RKN) methods are constructed for solving second-order differential equations with oscillatory solutions. These two new methods are constructed based on two existing RKN methods. …”
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1913
Evolution-Operator-Based Single-Step Method for Image Processing
Published 2006-01-01“…The key component of the proposed method is a local spectral evolution kernel (LSEK) that analytically integrates a class of evolution partial differential equations (PDEs). From the point of view PDEs, the LSEK provides the analytical solution in a single time step, and is of spectral accuracy, free of instability constraint. …”
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1914
A Mathematical Model for DNA Damage and Repair
Published 2010-01-01“…The model encompasses a set of differential equations representing the sequence of enzymatic reactions in both damage and repair pathways. …”
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1915
On Fitting Of Mathematical Models Of Cell Signaling Pathways Using Adjoint Systems
Published 2005-07-01“…Such models frequently take the form of a set ofnonlinear ordinary differential equations. While the model is continuous-time,the performance index, used in the fitting procedure, involves measurementstaken only at discrete-time moments. …”
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1916
Time Delayed Stage-Structured Predator-Prey Model with Birth Pulse and Pest Control Tactics
Published 2014-01-01“…In order to better control the pests, two-time delayed stage-structured predator-prey models with birth pulse and pest control tactics are proposed and analyzed by using impulsive differential equations in present work. The stability threshold conditions for the mature prey-eradication periodic solutions of two models are derived, respectively. …”
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1917
ANALYSIS OF THE INTERNAL RESONANCE CHARACTERISTICS OF RECTANGULAR CURRENT-CONDUCTING THIN PLATE IN TRANSVERSE MAGNETIC FIELD
Published 2017-01-01“…According to a rectangular plate with one side fixed and three other sides simply supported,time variable and space variable are separated by the displacement modal expansion and the method of Galerkin,and the two-degree-of-freedom internal resonance nonlinear vibration differential equations are obtained. By the method of multiple scales,the coupled characteristic equations of the first two order vibration modes are obtained under the case of 1∶3 internal resonance. …”
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1918
Qualitative and Computational Analysis of a Mathematical Model for Tumor-Immune Interactions
Published 2012-01-01“…We provide a family of ordinary and delay differential equations to model the dynamics of tumor-growth and immunotherapy interactions. …”
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1919
A High Order Theory for Linear Thermoelastic Shells: Comparison with Classical Theories
Published 2013-01-01“…Then in the same way as in the 3D theories system of differential equations in terms of displacements and boundary conditions for Fourier coefficients has been obtained. …”
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1920
Representation of the solution of a nonlinear molecular beam epitaxy equation
Published 2024-12-01“…Stochastic partial differential equations (SPDEs) driven by Lévy noise are extensively employed across various domains such as physics, finance, and engineering to simulate systems experiencing random fluctuations. …”
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