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Displaying records 81 to 90 of 99 records.
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81. Algorithms and Codes for the Macdonald Function: Recent Progress and Comparisons
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6596
Topic: Math
Published: 2/1/2003
Authors: B R Fabijonas, Daniel W Lozier, J M Rappoport
Abstract: The modified Bessel function K^di{nu}^{chi}, also known as the Macdonald function, finds application in the Kontorovich-Lebedev integral transform when {chi} and {nu} are real and positive. In this paper, a comparison of three codes for computing th ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50682

82. Reconstructing Images of Bar Codes for Construction Site Object Recognition
Topic: Math
Published: 9/1/2002
Authors: David E. Gilsinn, Geraldine S Cheok, Dianne M O'Leary
Abstract: This paper discusses a general approach to reconstructing ground truth intensity images of bar codes that have been distorted by LADARoptics. The first part of this paper describes the experimental data collection of several bar code images along w ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150859

83. Comparative Statistical Analysis of Test Parts Manufactured in Production Environments
Report Number: 6868
Topic: Math
Published: 6/1/2002
Authors: David E. Gilsinn, Alice V. Ling
Abstract: Estimating error uncertainties arising in parts produced on machine tools in production machine shops is not a well understood process. The current study details a process of estimating these error uncertainties. A part with significant features was ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150852

84. Estimating Critical Hopf Bifurcation Parameters for a Second Order DelayDifferential Equation with Application to Machine Tool Chatter
Topic: Math
Published: 5/1/2002
Author: David E. Gilsinn
Abstract: Nonlinear time delay differential equations are well known to have arisen in models in physiology, biology and population dynamics. They have also arisen in models of metal cutting processes. Machine tool chatter, from a process called regenerative c ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150815

85. The Role of Rendering in the Competence Project in Measurement Science for Optical Reflection and Scattering
Series: Journal of Research (NIST JRES)
Topic: Math
Published: 5/1/2002
Authors: H B Westlund, G W Meyer, Fern Y Hunt
Abstract: Rendering is the process of producing a synthetic image using a computer. The best known application is animation and simulation of scenes for the entertainment industry but recognition of its value as a tool for product design in other areas is incr ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150836

86. Constructing Sibson Elements for a Rectangular Mesh
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6718
Topic: Math
Published: 2/1/2001
Author: David E. Gilsinn
Abstract: This paper documents the construction of a finite element, called the Sibson element. The shape function of this element is formed on rectangular grids by C^u1^ splines defined on a triangulation of each subrectangle by dividing it into four subtri ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150813

87. Multiresolution Representation of Urban Terrain By L^1^ Splines, L^2^ Splines, and Piecewise Planar Surfaces
Topic: Math
Published: 12/11/2000
Authors: J E Lavery, David E. Gilsinn
Abstract: Cubic L^d1^ and L^d2^ interpolating splines based on C^u1^ smooth piecewise cubic Sibson elements on a tensor-product grid are investigated. Computational tests were carried out for a 102.4 km area of Fort Hood, Texas represented by a 1025 x 1025 set ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150797

88. The DLMF Project: A New Initiative in Classical Special Functions
Topic: Math
Published: 6/1/1999
Author: Daniel W Lozier
Abstract: NIST (formerly, National Bureau of Standards) has started an ambitious project that aims to produce a successor to Abramowitz and Stegun's {\em Handbook of Mathematical Functions}, published by the National Bureau of Standards in 1964 and reprinted b ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150783

89. Surface Energy Formula for a Hsieh-Clough-Tocher Element
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6246
Topic: Math
Published: 1/1/1999
Authors: Marjorie A McClain, Christoph Johann Witzgall
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=900860

90. The OOF Manual: Version 1.0
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6256
Topic: Math
Published: 11/1/1998
Authors: W C Carter, Stephen A Langer, Lin-Sien H Lum
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=900862



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