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Displaying records 121 to 130 of 183 records.
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121. Approximating Limit Cycles of a Van der Pol Equation with Delay
Topic: Math
Published: 1/15/2004
Author: David E. Gilsinn
Abstract: In this paper a theorem of Stokes is used to establish the existence of a periodic solution of a Van der Pol equation with fixed delay in the neighborhood of an approximating solution that satisfies a certain noncriticality condition.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50684

122. Using Nanoscillatory Splines to Model Urban Environments
Topic: Math
Published: 1/15/2004
Authors: David E. Gilsinn, Marjorie A McClain, Christoph Johann Witzgall
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150887

123. Using Nonoscillatory Splines to Model Urban Environments
Topic: Math
Published: 1/15/2004
Authors: David E. Gilsinn, Marjorie A McClain, Christoph Johann Witzgall
Abstract: In this paper we introduce the notion of Lavery splines and examine their properties in the univariate case. We also discuss some of the details involved with computing these splines on irregularly spaced data.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50417

124. Combining Information from Independent Similar Studies Using Random Effect Model
Topic: Math
Published: 1/1/2004
Author: Raghu N Kacker
Abstract: We compare leading statistical methods to combine information from independent similar studies using random effects model. One of the oldest methods is that of Cochran (1954). The method of Paule and Mandel (1982) was developed to determine the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150863

125. Constructing Sequence Alignments from a Markov Decision Model with Estimated Parameter Values
Topic: Math
Published: 1/1/2004
Authors: Fern Y Hunt, Anthony J Kearsley, Agnes (Abbie) O'Gallagher
Abstract: Current methods for aligning biological sequences are based on dynamic programming algorithms. If large numbers of sequences or a number of long ones are to be aligned the required computations are expensive in memory and CPU time. In an attempt to b ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=51306

126. Constructing Sequence Alignments from a Markov Decision Model with Estimated Parameter Values
Topic: Math
Published: 1/1/2004
Authors: Fern Y Hunt, Anthony J Kearsley, Agnes (Abbie) O'Gallagher
Abstract: Current methods for aligning biological sequences are based on dynamic programming algorithms. If large numbers of sequences or a number of long ones are to be aligned the required computations are expensive in memory and CPU time. In an attempt to b ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=51308

127. The Dilogarithm Function for Complex Argument
Topic: Math
Published: 11/8/2003
Author: L C. Maximon
Abstract: This paper summarizes the basic properties of the Euler dilogarithm function, often referred to as the Spence function. These include integral representations, series expansions, linear and quadratic transformations, functional relations, numerical v ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150847

128. Statistical Interpretation of Key Comparison Reference Value and Degrees of Equivalence
Series: Journal of Research (NIST JRES)
Topic: Math
Published: 11/1/2003
Authors: Raghu N Kacker, Raju Vsnu Datla, Albert C. Parr
Abstract: This paper responds to comments received by the authors on the paper, Combined Result and Associated Uncertainty from Interlaboratory Evaluations Based on the ISO Guide that appeared in Metrologia, 2002, 39, 279-293.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150873

129. The Normalized Reduced Form and Cell Mathematical Tools for Lattice Analysis--Symmetry and Similarity
Series: Journal of Research (NIST JRES)
Topic: Math
Published: 11/1/2003
Author: Alan D. Mighell
Abstract: To intelligently and effectively use the crystallographic databases, dierse mathematical and computer tools are required that can delve into the nature of a given lattice or that can cut across a set of lattices to elucidate various types of interlat ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=850773

130. Deconvolving LADAR Images Of Bar Codes for Construction Site Object Recognition
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7044
Topic: Math
Published: 10/1/2003
Authors: David E. Gilsinn, Geraldine S Cheok, Dianne M O'Leary
Abstract: This report discusses a general approach to reconstructing ground truth intensity images of bar codes that have been distorted by LADAR optics. The first part of this report describes the experimental data collection of several bar code images along ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50685