Works Published in 2009
Displaying works 121 - 140 of 170 in total
Sorted by most recent date added to the index first, which may not be the same as publication date order.
2009 journal article
Long-Time Performance of Unsplit PMLs with Explicit Second Order Schemes
Journal of Scientific Computing, 41(1), 1–12.
author keywords: Perfectly matched layer (PML); Long-time growth; Wave propagation; Maxwell's equations; Numerical solution; Second order approximation; Yee scheme; Leap-frog scheme; Lax-Wendroff scheme; Central difference/Runge-Kutta scheme; Yee/Runge-Kutta scheme
TL;DR:
Analysis of the temporal behavior of unsplit PMLs for some commonly used second order explicit finite-difference schemes that approximate the Maxwell’s equations finds that the type of the layer and the choice of the scheme play a major role in how rapidly this growth may manifest itself and whether or not it manifests itself at all.
(via Semantic Scholar)
link.springer.com (publisher PDF)
Sources: Web Of Science, NC State University Libraries, ORCID, Crossref
Added: August 6, 2018
2009 journal article
LAGRANGE MULTIPLIER APPROACH WITH OPTIMIZED FINITE DIFFERENCE STENCILS FOR PRICING AMERICAN OPTIONS UNDER STOCHASTIC VOLATILITY
SIAM JOURNAL ON SCIENTIFIC COMPUTING, 31(4), 2646–2664.
author keywords: American option pricing; stochastic volatility model; linear complementarity problem; finite difference method; quadratic programming; multigrid method; Lagrange method; penalty method
TL;DR:
The deterministic numerical valuation of American options under Heston's stochastic volatility model is considered and a Lagrange approach is used to treat the linear complementarity problems.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
8. Decent Work and Economic Growth
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2009 article
Idealized simulation of hydrodynamic characteristics of Lake Victoria that potentially modulate regional climate
Anyah, R. O., & Semazzi, F. (2009, June 15). INTERNATIONAL JOURNAL OF CLIMATOLOGY, Vol. 29, pp. 971–981.
author keywords: Lake Victoria influence on regional climate; Lake Victoria hydrodynamics; lake currents; time and space evolutions of lake temperatures
UN Sustainable Development Goal Categories
13. Climate Action
(Web of Science)
14. Life Below Water
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2009 journal article
Experimental design and estimation of growth rate distributions in size-structured shrimp populations
Inverse Problems, 25(9), 095003.
TL;DR:
Parameter-estimation findings using experimental data from experiments so designed for shrimp populations cultivated at Advanced BioNutrition Corporation are presented, illustrating the usefulness of mathematical and statistical modeling in understanding the uncertainty in the growth dynamics of such populations.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger
(OpenAlex)
3. Good Health and Well-being
(Web of Science)
Sources: Crossref, NC State University Libraries
Added: August 6, 2018
2009 journal article
Density-Dependent Intraspecific Competition in the Larval Stage of Aedes aegypti (Diptera: Culicidae): Revisiting the Current Paradigm
JOURNAL OF MEDICAL ENTOMOLOGY, 46(3), 409–419.
author keywords: Aedes aegypti; density dependence; intraspecific competition; mathematical model; parameter estimation
MeSH headings : Aedes / growth & development; Aedes / physiology; Animals; Behavior, Animal; Competitive Behavior; Environment; Feeding Behavior; Larva / growth & development; Larva / physiology; Models, Theoretical; Population Density; Population Dynamics
TL;DR:
It is emphasized that the characterization of density dependence in the larval stages of Ae.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, ORCID
Added: August 6, 2018
2009 journal article
BOSONIC REALIZATION OF TOROIDAL LIE ALGEBRAS OF CLASSICAL TYPES
PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY, 137(11), 3609–3618.
author keywords: Toroidal algebras; Weyl algebras; vertex operators; representations
UN Sustainable Development Goal Categories
14. Life Below Water
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2009 journal article
A sensitivity matrix based methodology for inverse problem formulation
JOURNAL OF INVERSE AND ILL-POSED PROBLEMS, 17(6), 545–564.
author keywords: Inverse problems; ordinary least squares; sensitivity matrix; Fisher Information matrix; parameter selection; standard errors
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, ORCID
Added: August 6, 2018
2009 journal article
Resolution of the wavefront set using continuous shearlets
Transactions of the American Mathematical Society, 361(5), 2719–2754.
Source: NC State University Libraries
Added: August 6, 2018
2009 journal article
Real-Time Algorithm for Minimizing THD in Multilevel Inverters With Unequal or Varying Voltage Steps Under Staircase Modulation
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 56(6), 2249–2258.
author keywords: Multilevel inverter; multilevel pulsewidth modulation (PWM); power conversion; staircase modulation
TL;DR:
A real-time algorithm for multilevel inverters with unequal or varying voltage steps under the staircase modulation results in the minimal total harmonic distortion of the output voltage of the inverter, which is proved by rigorous mathematical derivations in this paper.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2009 journal article
QUADRATIC MODEL UPDATING WITH SYMMETRY, POSITIVE DEFINITENESS, AND NO SPILL-OVER
SIAM JOURNAL ON MATRIX ANALYSIS AND APPLICATIONS, 31(2), 546–564.
Contributors: D. Chlj, M. Chu* & W. Lin
author keywords: quadratic model; inverse eigenvalue problem; model updating; eigenstructure assignment; spill-over; positive definiteness
TL;DR:
Some necessary and sufficient conditions for the solvability conditions are established in this investigation and several theoretical aspects about updating that preserves both no spill-over and positive definiteness of the mass and the stiffness matrices are highlighted.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2009 journal article
On the shape derivative for problems of Bernoulli type
Interfaces and Free Boundaries, 11(2), 317–330.
Source: NC State University Libraries
Added: August 6, 2018
2009 journal article
A mathematical model for the first-pass dynamics of antibiotics acting on the cardiovascular system
MATHEMATICAL AND COMPUTER MODELLING, 50(7-8), 959–974.
author keywords: Compartmental model; Circulatory system; Drug delivery; Differential equations; Optimal dosing strategies; Sensitivity
TL;DR:
A preliminary first-pass dynamic model for delivery of drug compounds to the lungs and heart using a compartmental mass balance approach and a system of nonlinear differential equations for mass accumulated in the heart as a result of intravenous injection is presented.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(OpenAlex)
Source: Web Of Science
Added: August 6, 2018
2009 article
SPECIAL ISSUE ON ACCURATE SOLUTION OF EIGENVALUE PROBLEMS
SIAM JOURNAL ON MATRIX ANALYSIS AND APPLICATIONS, Vol. 31, pp. VII-VII.
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2009 article
REFINED PERTURBATION BOUNDS FOR EIGENVALUES OF HERMITIAN AND NON-HERMITIAN MATRICES
SIAM JOURNAL ON MATRIX ANALYSIS AND APPLICATIONS, Vol. 31, pp. 40–53.
Contributors: I. Ipsen * & B. Nadler
author keywords: eigenvalues; Hermitian matrix; eigenvalue gap; perturbation bounds; non-Hermitian perturbations; principal components; numerical continuation
TL;DR:
Eigenvalue bounds for perturbations of Hermitian matrices are presented and the change in eigenvalues are expressed in terms of a projection of the perturbation onto a particular eigenspace, rather than in terms.
(via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2009 journal article
On the Classification of Orbits of Symmetric Subgroups Acting on Flag Varieties of SL(2, k)
COMMUNICATIONS IN ALGEBRA, 37(4), 1334–1352.
author keywords: k-split tori; Minimal parabolic subgroups; p-adic numbers; Symmetric k-varieties; Symmetric spaces
Source: Web Of Science
Added: August 6, 2018
2009 journal article
More efficient optimization of long-term water supply portfolios
WATER RESOURCES RESEARCH, 45.
TL;DR:
This work describes the integration of a variance reduction technique (control variate method) within the simulation/optimization as a means of more efficiently identifying minimum cost portfolios.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation
(Web of Science)
13. Climate Action
(Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018
2009 journal article
Estimation in time-delay modeling of insecticide-induced mortality
JOURNAL OF INVERSE AND ILL-POSED PROBLEMS, 17(2), 101–125.
author keywords: Inverse problems; ordinary and generalized least squares; delay-differential equation models; insect populations; insecticide exposure; time-varying mortality and maturation rates
TL;DR:
Empirical efficacy of the methodology in the context of models for insect maturation and mortality due to insecticide exposure is demonstrated.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018
2009 journal article
A well-conditioned augmented system for solving Navier-Stokes equations in irregular domains
JOURNAL OF COMPUTATIONAL PHYSICS, 228(7), 2616–2628.
author keywords: Navier-Stokes equations; Embedding technique; Immersed interface method; Irregular domain; Augmented system; Projection method; Level set representation
TL;DR:
An augmented method based on a Cartesian grid is proposed for the incompressible Navier-Stokes equations in irregular domains using the immersed interface method to achieve second order accuracy for the velocity.
(via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018
2009 journal article
The linearized Boltzmann equation with Cercignani-Lampis boundary conditions: Basic flow problems in a plane channel
EUROPEAN JOURNAL OF MECHANICS B-FLUIDS, 28(3), 387–396.
author keywords: Rarefied gas dynamics; Linearized Boltzmann equation; Cercignani-Lampis boundary condition; Poiseuille flow; Thermal-creep flow; Couette flow
Source: Web Of Science
Added: August 6, 2018
2009 journal article
Optimal Tracking Using Magnetostrictive Actuators Operating in Nonlinear and Hysteretic Regimes
JOURNAL OF DYNAMIC SYSTEMS MEASUREMENT AND CONTROL-TRANSACTIONS OF THE ASME, 131(3).
author keywords: control system synthesis; feedback; intelligent materials; intelligent structures; Kalman filters; magnetostrictive devices; nonlinear control systems; open loop systems; optimal control; perturbation techniques; PI control; piezoelectric actuators; piezoelectric materials; piezoelectric transducers; shape memory effects; stochastic processes
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018
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