Works Published in 2015

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Displaying works 121 - 140 of 205 in total

Sorted by most recent date added to the index first, which may not be the same as publication date order.

2015 journal article

Morphogenetic implications of peristaltic fluid-tissue dynamics in the embryonic lung

JOURNAL OF THEORETICAL BIOLOGY, 382, 378–385.

By: K. Bokka n, E. Jesudason*, D. Warburton & S. Lubkin n

Contributors: K. Bokka n, E. Jesudason*, D. Warburton & S. Lubkin n

author keywords: Airway; Peristalsis; Fluid-structure interaction; Pressure; Morphogenesis
MeSH headings : Animals; Computer Simulation; Epithelium / physiology; Hydrodynamics; Lung / embryology; Lung / physiology; Models, Biological; Morphogenesis; Peristalsis / physiology; Time Factors
TL;DR: A model of the fluid-structure interactions between embryonic tissues and lumen fluid resulting from peristaltic waves that partially occlude the airway finds that if theAirway is closed, deformations are synchronized; by contrast, if the trachea is open, maximal occlusion precedes maximal pressure. (via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2015 journal article

Identifiability Results for Several Classes of Linear Compartment Models

BULLETIN OF MATHEMATICAL BIOLOGY, 77(8), 1620–1651.

author keywords: Identifiability; Linear compartment models; Identifiable functions; Differential algebra
MeSH headings : Animals; Endosomes / metabolism; Humans; Linear Models; Manganese / pharmacokinetics; Mathematical Concepts; Models, Biological; Rats
TL;DR: This work shows how to modify identifiable cycle models by adding inputs, adding outputs, or removing leaks, in such a way that they obtain an identifiable model and proves a constructive result on how to combine identifiable models, each corresponding to strongly connected graphs, into a larger identifiable model. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2015 journal article

Estimation of distributed parameters in permittivity models of composite dielectric materials using reflectance

Journal of Inverse and Ill-Posed Problems, 23(5), 491–509.

Source: NC State University Libraries
Added: August 6, 2018

2015 journal article

DIRECT SAMPLING METHOD FOR DIFFUSIVE OPTICAL TOMOGRAPHY

SIAM JOURNAL ON SCIENTIFIC COMPUTING, 37(4), A1658–A1684.

By: Y. Chow, K. Ito*, K. Liu & J. Zou

author keywords: direct sampling method; diffusive optical tomography
TL;DR: A simple and efficient direct sampling method (DSM) is proposed to locate inhomogeneities inside a homogeneous background and solve the DOT problem in both full and limited aperture cases. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2015 journal article

CONDITIONING OF LEVERAGE SCORES AND COMPUTATION BY QR DECOMPOSITION

SIAM JOURNAL ON MATRIX ANALYSIS AND APPLICATIONS, 36(3), 1143–1163.

By: J. Holodnak n, I. Ipsen n & T. Wentworth*

Contributors: J. Holodnak n, I. Ipsen n & T. Wentworth*

author keywords: principal angles; stable rank; condition number; row-scaling; componentwise perturbations
TL;DR: The leverage scores of a full-column rank matrix A are the squared row norms of any orthonormal basis for range(A) and it is shown that corresponding leverage Scores of two matrices A and A + \Delta A are close in the relative sense, if they have large magnitude and if all principal angles between the column spaces of A & A are small. (via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2015 journal article

A Sparse Interpolation Algorithm for Dynamical Simulations in Computational Chemistry

SIAM Journal on Scientific Computing, 37(5), S137–S156.

By: J. Nance* & C. Kelley*

author keywords: sparse interpolation; sparse grids; Smolyak's algorithm; dynamics; reaction path following
TL;DR: A new implementation of Smolyak's sparse grid interpolation algorithm designed for dynamical simulations is presented, motivated by an application to quantum chemistry where the goal is to simulate photo-induced molecular transformations. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, Crossref, NC State University Libraries
Added: August 6, 2018

2015 journal article

Well-balanced positivity preserving central-upwind scheme for the shallow water system with friction terms

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS, 78(6), 355–383.

By: A. Chertock n, S. Cui*, A. Kurganov* & T. Wu*

author keywords: shallow water equations with friction terms; central-upwind scheme; well-balanced scheme
UN Sustainable Development Goal Categories
11. Sustainable Cities and Communities (OpenAlex)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2015 journal article

Unitary and orthogonal equivalence of sets of matrices

LINEAR ALGEBRA AND ITS APPLICATIONS, 481, 235–242.

By: N. Jing n

Contributors: N. Jing n

author keywords: Simultaneous unitary equivalence; Simultaneous similarity; Simultaneous orthogonal equivalence; Congruence
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2015 article

Two Fluid Flow in a Capillary Tube

COLLABORATIVE MATHEMATICS AND STATISTICS RESEARCH, Vol. 109, pp. 149–161.

Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 journal article

The immersed interface method for axis-symmetric problems and application to the Hele-Shaw flow

APPLIED MATHEMATICS AND COMPUTATION, 264, 179–197.

By: J. Ruiz Alvarez* & Z. Li n

author keywords: Immersed interface method; Axis-symmetric interface problem; Discontinuous coefficients; Finite difference method; Level set method; Hele-Shaw flow
TL;DR: The immersed interface method (IIM) in axis-symmetric coordinates is developed for elliptic interface problems that have a discontinuous coefficient, solution or flux and is shown to be second order accurate in the infinity norm. (via Semantic Scholar)
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 journal article

Special algorithm for stability analysis of multistable biological regulatory systems

JOURNAL OF SYMBOLIC COMPUTATION, 70, 112–135.

author keywords: Quantifier elimination; Root classification; Biological regulation system; Stability
TL;DR: A special algorithm is presented which is much more efficient than the general methods of solving the problem of counting (stable) equilibriums of an important family of algebraic differential equations modeling multistable biological regulatory systems. (via Semantic Scholar)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2015 conference paper

RFI modeling and prediction approach for SATOPS applications

In K. D. Pham & G. Chen (Eds.), Sensors and Systems for Space Applications VIII (Vol. 9469).

By: T. Nguyen*, H. Tran n, Z. Wang*, A. Coons n, C. Nguyen*, S. Lane*, K. Pham, G. Chen*, G. Wang*

Ed(s): K. Pham & G. Chen*

Event: SPIE Defense + Security

author keywords: Friendly RFI; Unfriendly RFI; Detection; Prediction; Satellite Operations; Command; Quality-of-Service; Bit Error Rate; Synchronization; Unified-S-Band; Satellite Control Network; Interference Protection Criteria
TL;DR: The proposed frameworks allow the designer to estimate the optimum transmitted signal power to maintain a required USB SATOPS Quality-of-Service (QoS) in the presence of both friendly and unfriendly RFI sources. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2015 journal article

Quantifying uncertainty and variable sensitivity within the US billion-dollar weather and climate disaster cost estimates

NATURAL HAZARDS, 77(3), 1829–1851.

By: A. Smith* & J. Matthews*

author keywords: Natural disasters; Costs; Losses; Uncertainty; Statistics of extreme events; Sensitivity
UN Sustainable Development Goal Categories
13. Climate Action (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2015 journal article

On the sectorial property of the Caputo derivative operator

APPLIED MATHEMATICS LETTERS, 47, 43–46.

By: K. Ito n, B. Jin* & T. Takeuchi*

author keywords: Caputo fractional derivative; Sectorial property
TL;DR: In this note, the sectorial property of the Caputo fractional derivative operator of order α∈(1,2) with a zero Dirichlet boundary condition is established. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2015 journal article

Lobatto IIIA methods, direct transcription, and DAEs with delays

NUMERICAL ALGORITHMS, 69(2), 291–300.

By: J. Betts*, S. Campbell n & K. Thompson n

author keywords: Optimal control; Delays; Direct transcription; Numerical discretizations; Stability
TL;DR: This work shows that this undesirable behavior of LobattoIIIA methods reported in the literature is tied to the use of Lagrange interpolation and their use in an ODE integrator. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2015 conference paper

Identification of thermal degradation using probabilistic models in reflectance spectroscopy

1650, 1898–1906.

By: A. Criner*, A. Cherry, A. Cooney, T. Katter*, H. Banks n, S. Hu n, J. Catenacci n

Event: 41ST ANNUAL REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION: Volume 34

Sources: Crossref, NC State University Libraries
Added: August 6, 2018

2015 article

Elastic collisions among peakon solutions for the Camassa-Holm equation

Chertock, A., Liu, J.-G., & Pendleton, T. (2015, July). APPLIED NUMERICAL MATHEMATICS, Vol. 93, pp. 30–46.

By: A. Chertock n, J. Liu* & T. Pendleton*

author keywords: Camassa-Holm equation; Particle method; Peakon solutions; Elastic collisions; Conservation laws; Completely integrable systems
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
14. Life Below Water (Web of Science)
Sources: Web Of Science, ORCID, NC State University Libraries
Added: August 6, 2018

2015 journal article

Computation of singular solutions to the Helmholtz equation with high order accuracy

Applied Numerical Mathematics, 93, 215–241.

By: S. Britt n, S. Petropavlovsky n, S. Tsynkov n & E. Turkel*

author keywords: Difference potentials; Boundary projections; Calderon's operators; Regular grids; Curvilinear boundaries; Non-conforming boundaries; Solutions with singularities; Singularity subtraction; Discontinuous boundary data; Asymptotic expansion near singularity; Compact differencing; High order accuracy
TL;DR: A broad spectrum of problems involving different boundary conditions and/or data on "smooth" segments of the boundary can be solved economically since the discrete counterparts of Calderon's projections need to be calculated only once and then can be applied to each individual formulation at very little additional cost. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries, ORCID, Crossref
Added: August 6, 2018

2015 journal article

Comparative Genomic Analysis Identifies Divergent Genomic Features of Pathogenic Enterococcus cecorum Including a Type IC CRISPR-Cas System, a Capsule Locus, an epa-Like Locus, and Putative Host Tissue Binding Proteins

PLOS ONE, 10(4).

By: L. Borst n, M. Suyemoto n, E. Scholl n, F. Fuller n & H. Barnes n

MeSH headings : Animals; Bacterial Proteins / chemistry; Bacterial Proteins / metabolism; CRISPR-Cas Systems / genetics; Chickens; Comparative Genomic Hybridization; Enterococcus / classification; Enterococcus / genetics; Enterococcus / isolation & purification; Evolution, Molecular; Genetic Loci; Genome, Bacterial; Genomics; Genotype; Phylogeny; Poultry Diseases / epidemiology; Poultry Diseases / microbiology; Virulence / genetics
TL;DR: Specific genomic regions, coding sequences, and predicted proteins which may be related to the divergent evolution and increased virulence of emerging pathogenic strains of EC are identified and potential mediators of virulence identified. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2015 journal article

Vertex Representations of Toroidal Special Linear Lie Superalgebras

CHINESE ANNALS OF MATHEMATICS SERIES B, 36(3), 427–436.

By: N. Jing* & C. Xu*

author keywords: Toroidal Lie superalgebras; Vertex operators; Free fields
UN Sustainable Development Goal Categories
14. Life Below Water (Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

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