Works Published in 2019
Displaying works 21 - 40 of 56 in total
Sorted by most recent date added to the index first, which may not be the same as publication date order.
2019 journal article
One-Dimensional/Two-Dimensional Coupling Approach with Quadrilateral Confluence Region for Modeling River Systems
Journal of Scientific Computing.
author keywords: Shallow water flow in river systems; One-dimensional; two-dimensional coupling; Quadrilateral confluence region; Well-balanced central-upwind scheme
TL;DR:
A new 1-D/2-D river junction model is proposed, in which each reach of the river is modeled by the1-D shallow water equations, while the confluence region, where the mixing of flows from the different directions occurs, is modeling by the 2-D ones.
(via Semantic Scholar)
Source: ORCID
Added: September 10, 2019
2019 article
Global Sensitivity Analysis of Fractional-Order Viscoelasticity Models
BEHAVIOR AND MECHANICS OF MULTIFUNCTIONAL MATERIALS XIII, Vol. 10968.
author keywords: Viscoelasticity; Global Sensitivity Analysis; Fractional-Order Calculus
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
13. Climate Action
(OpenAlex)
Sources: Web Of Science, ORCID
Added: September 9, 2019
2019 article
Parameter-dependent Surrogate Model Development for PZT Bimorph Actuators Employed for Micro-air Vehicles
BEHAVIOR AND MECHANICS OF MULTIFUNCTIONAL MATERIALS XIII, Vol. 10968.
author keywords: Uncertainty Quantification; PZT Bimorph; Modeling; Surrogate; Homogenized Energy Model
TL;DR:
The use of the homogenized energy model (HEM) is discussed to develop a dynamic mode decomposition surrogate model for a PZT bimorph actuator used for micro-air vehicles including Robobee.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Sources: Web Of Science, ORCID
Added: September 9, 2019
2019 journal article
Incompressible limit of a continuum model of tissue growth with segregation for two cell populations
Math. Biosci. Eng., 16(5), 5804–5835.
Source: ORCID
Added: September 8, 2019
2019 journal article
An asymptotic preserving scheme for kinetic chemotaxis models in two space dimensions
Kinetic & Related Models, 12(1), 195–216.
author keywords: Chemotaxis; kinetic equations; multiscale models; asymptotic preserving (AP) methods; operator splitting
doi.org (publisher)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: ORCID, Crossref
Added: September 8, 2019
2019 conference paper
A method of boundary equations for unsteady hyperbolic problems in 3D
Mathematics and Its Applications, Book of Abstracts for the International Conference in honor of the 90th birthday of Sergei K. Godunov, Novosibirsk, Russia, August 4-10, 2019, 68. https://stsynkov.math.ncsu.edu/publications/a82e_godunov90.pdf
Source: ORCID
Added: September 6, 2019
2019 conference paper
A high order method of boundary operators for the 3D time-dependent wave equation
Book of Abstracts, The 14th International Conference on Mathematical and Numerical Aspects of Wave Propagation, WAVES 2019, Vienna University of Technology (TU Wien), Vienna, Austria, August 25-30, 2019, 363–365. https://stsynkov.math.ncsu.edu/publications/Unsteady_DPM_waves2019_v6.pdf
Source: ORCID
Added: September 6, 2019
2019 conference paper
Stochastic Models in Coordinate-Delay Synthetic Aperture Radar Imaging
Book of Abstracts, The 14th International Conference on Mathematical and Numerical Aspects of Wave Propagation, WAVES 2019, Vienna University of Technology (TU Wien), Vienna, Austria, August 25-30, 2019, 330–331. https://stsynkov.math.ncsu.edu/publications/Dispersive_targets_Waves2019_v3_final.pdf
Source: ORCID
Added: September 6, 2019
2019 journal article
Molecular Dynamics Simulations on Relaxed Reduced-Dimensional Potential Energy Surfaces
The Journal of Physical Chemistry A, 123(21), 4543–4554.
TL;DR:
A new MD implementation is presented that utilizes the relaxed reduced-dimensional PES for standard microcanonical (NVE) and canonical (NVT) MD simulations and is applied to the pyramidal inversion of a NH3 molecule.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(Web of Science; OpenAlex)
Sources: ORCID, Crossref
Added: August 29, 2019
2019 journal article
A gradient recovery-based adaptive finite element method for convection-diffusion-reaction equations on surfaces
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, 120(7), 901–917.
author keywords: adaptive strategy; recovery-based error estimator; streamline diffusion method; surface convection-diffusion-reaction equations; surface finite element method
TL;DR:
Various numerical examples, including the convection‐dominated diffusion problems with large variations of solutions, nearly singular solutions, discontinuous sources, and internal layers on surfaces, are presented to demonstrate the efficacy and accuracy of the proposed adaptive mesh refinement method.
(via Semantic Scholar)
Sources: Web Of Science, ORCID
Added: August 26, 2019
2019 journal article
Cardiovascular dynamics during head-up tilt assessed via pulsatile and non-pulsatile models
Journal of Mathematical Biology, 79(3), 987–1014.
author keywords: Cardiovascular dynamics modeling; Head-up tilt; Pulsatile versus non-pulsatile modeling; Parameter estimation; Orthostatic intolerance
MeSH headings : Adult; Blood Pressure; Cardiac Output / physiology; Heart Rate; Hemodynamics; Humans; Male; Models, Cardiovascular; Pulsatile Flow; Supine Position; Tilt-Table Test; Vascular Resistance / physiology
TL;DR:
It is shown that mathematical modeling can be used to predict changes in cardiac contractility, vascular resistance, and arterial compliance, quantities that cannot be measured but are useful to assess the system’s state.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 19, 2019
2019 journal article
Active subspace analysis and uncertainty quantification for a polydomain ferroelectric phase-field model
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES, 30(14), 2027–2051.
author keywords: Ferroelectric; active subspace analysis; uncertainty quantification
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 19, 2019
2019 journal article
Modeling Zika Virus Transmission Dynamics: Parameter Estimates, Disease Characteristics, and Prevention
SCIENTIFIC REPORTS, 9.
MeSH headings : Basic Reproduction Number / statistics & numerical data; Disease Outbreaks / statistics & numerical data; Humans; Islands / epidemiology; Models, Statistical; Polynesia / epidemiology; Prevalence; Time Factors; Zika Virus; Zika Virus Infection / blood; Zika Virus Infection / prevention & control; Zika Virus Infection / transmission
TL;DR:
A method that utilizes a mathematical model of ZIKV dynamics and the complex-step derivative approximation technique to identify parameters that can be estimated from the available data and found that peak prevalence can be reduced to nearly 10% by reducing mosquito-to-human contact or increasing mosquito death by at least a factor of three of the base case.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science; OpenAlex)
Source: Web Of Science
Added: August 12, 2019
2019 journal article
Sequential optimal positioning of mobile sensors using mutual information
STATISTICAL ANALYSIS AND DATA MINING, 12(6), 465–478.
author keywords: Bayesian inference; inverse problem; mutual information; sensor placement; source localization
TL;DR:
While most mobile sensor strategies designate a trajectory for sensor movement, this work instead employs mutual information, based on Shannon entropy, to choose the next measurement location from a discrete set of design conditions.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science; OpenAlex)
13. Climate Action
(Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 12, 2019
2019 journal article
Numerical Validations of the Tangent Linear Model for the Lorenz Equations
CMES-COMPUTER MODELING IN ENGINEERING & SCIENCES, 120(1), 83–104.
author keywords: Lorenz model; tangent linear model; nonlinear model; Monte Carlo
Sources: Web Of Science, NC State University Libraries
Added: August 5, 2019
2019 journal article
Surrogate-Based Robust Design for a Non-Smooth Radiation Source Detection Problem
ALGORITHMS, 12(6).
author keywords: robust design in the average sense; Particle Swarm; radial basis functions; radiation source detection
TL;DR:
A robust sensor network design is developed that is optimal in an average sense for detecting source location and intensity with minimized uncertainty and employs a verified surrogate model based on radial basis functions.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science; OpenAlex)
Sources: Web Of Science, ORCID
Added: July 22, 2019
2019 journal article
Uncertainty quantification of two-phase flow and boiling heat transfer simulations through a data-driven modular Bayesian approach
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 138, 1096–1116.
TL;DR:
An approach to inversely quantify the uncertainty of MCFD simulations through a data-driven modular Bayesian inference is presented, and a forward uncertainty propagation of the MCFD solver with the obtained uncertainties shows that the agreement between the solver predictions and experimental measurements are significantly improved.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action
(Web of Science)
Sources: Web Of Science, ORCID
Added: July 15, 2019
2019 journal article
Incompressible limit of a continuum model of tissue growth with segregation for two cell populations
MATHEMATICAL BIOSCIENCES AND ENGINEERING, 16(5), 5804–5835.
author keywords: tissue growth; two cell populations; incompressible limit; free boundary problem
MeSH headings : Biological Phenomena; Cell Proliferation; Computer Simulation; Developmental Biology; Elasticity; Epidermis / physiopathology; Epithelium / physiology; Humans; Models, Biological; Models, Theoretical; Neoplasms / physiopathology; Porosity; Stress, Mechanical
TL;DR:
The influ-ence of the model parameters are studied thanks to one-dimensional simulations using a finite-volume method for a relaxation approximation of the fourth order diffusion and formal arguments are provided that the model approximates a free boundary Hele Shaw type model.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: July 8, 2019
2019 journal article
Adaptive moving mesh upwind scheme for the two-species chemotaxis model
Computers & Mathematics with Applications, 77(12), 3172–3185.
author keywords: Two-species chemotaxis system; Adaptive moving mesh (AMM) method; Finite-volume upwind method; Singular (spiky) solutions
TL;DR:
An adaptive moving mesh (AMM) finite-volume semi-discrete upwind method for the two-species chemotaxis system and an alternative approach relying on mesh adaptation, which helps to improve the approximation of the singular structures evolved bychemotaxis models are considered.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
15. Life on Land
(OpenAlex)
Sources: Web Of Science, Crossref, ORCID, NC State University Libraries
Added: July 1, 2019
2019 journal article
Compact High Order Accurate Schemes for the Three Dimensional Wave Equation
Journal of Scientific Computing, 5, 1–29.
author keywords: Unsteady wave propagation; Fourth order accurate approximation; Small stencil; Cartesian grid; Implicit scheme; Multigrid methods
TL;DR:
A family of compact fourth order accurate finite difference schemes for the three dimensional scalar wave (d’Alembert) equation with constant or variable propagation speed with inversion at the upper time level is constructed.
(via Semantic Scholar)
Sources: Crossref, NC State University Libraries, ORCID
Added: June 21, 2019
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