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You searched on: Author: robert hagwood

Displaying records 11 to 20 of 24 records.
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11. Combining Data in Small Multiple Method Studies
Published: 5/1/2003
Authors: Robert Charles Hagwood, William F Guthrie
Abstract: In this article an accurate confidence interval is derived when the results of a small number of different experimental methods are combined for the determination of an unknown quantity. ANOVA and a simple hierarchical Bayesian analysis of variance ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50796

12. On the Asymptotic Distribution of Sums of Independent Nonidentically Distributed Pareto Variates
Published: 3/1/2002
Author: Robert Charles Hagwood
Abstract: The sum of independent Pareto random variables with varying parameters are shown to converge to a stable distribution. This extends a result of Blum for i.i.d. Pareto random variables.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=51085

13. Evaluation of the Elevated Temperature Creep Strength of Three Lead-Free Solder Alloys in Soldered Joints
Published: 7/1/2001
Authors: D A Shepherd, Robert Charles Hagwood, Richard Joel Fields
Abstract: Amendments to the Safe Drinking Water Act mandated that soldered joints used in potable water systems be free of lead. In addition to lead contents, allowable pressures used in potable water systems are directly related to the elevated temperature c ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=852991

14. Reliability of Conformance Tests
Published: 8/21/1998
Authors: Robert Charles Hagwood, Raghu N Kacker, James H Yen, D L. Banks, Lynne S. Rosenthal, Leonard J Gallagher, Paul E Black
Abstract: A conformance test is a software assurance test that is applied in order to determine if specification requirements of the software are being met. It is a time-dependent model, where the software object is subjected to an a priori known test suite. ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=151738

15. Software Testing: Protocol Comparison
Published: 5/29/1998
Authors: James H Yen, D L. Banks, Leonard J Gallagher, Paul E Black, Robert Charles Hagwood, Raghu N Kacker, Lynne S. Rosenthal
Abstract: Software testing is hard, expensive, and uncertain. Many protocols have been suggested, especially in the area of conformance verification. In order to compare the efficacy of these protocols, we have implemented a designed simulation experiment th ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=151734

16. Software Testing by Statistical Methods - Preliminary Success Estimates for Approaches Based on Binomial Models, Coverage Designs, Mutation Testing, and Usage Models
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6129
Published: 3/1/1998
Authors: D L. Banks, W H. Dashiell, Leonard J Gallagher, Robert Charles Hagwood, Raghu N Kacker, Lynne S. Rosenthal
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=900838

17. Software Testing by Statistical Methods: Preliminary Success Estimates for Approaches Based on Binomial Models, Coverage Designs, Mutation Testing, and Usage Models
Report Number: 6129
Published: 3/1/1998
Authors: D L. Banks, W H. Dashiell, Leonard J Gallagher, Robert Charles Hagwood, Raghu N Kacker
Abstract: This paper is a survey of the statistical methods relevant to Black-Box conformance testing. The methods are reviewed from the view point of their potential use in an ITL collaborative project.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=151735

18. Tomographic Reconstruction of the Local PDFS of Soot Volume Fraction and Temperature
Published: 4/23/1995
Authors: Y. R. Sivathanu, Anthony P Hamins, Robert Charles Hagwood, Takashi Kashiwagi
Abstract: Deconvolution of local properties from line-of-sight measurements is important in a wide variety of applications such as x-ray tomography, nuclear magnetic resonance imaging, atmospheric sciences, optical inteferometry and flow field diagnostics. The ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909968

19. Analysis of Sensitivity of VCCTL Measurements to Various Input Quantities
Published: Date unknown
Authors: Adriana Hornikova, Blaza Toman, Nien F Zhang, Hung-Kung Liu, Robert Charles Hagwood, Edward Joseph Garboczi, Jeffrey W Bullard
Abstract: Virtual measurements are the outputs of well-defined mathematical models based on theoretical principles and simulation algorithms. The VCCTL (Virtual Cement and Concrete Testing Laboratory) is a software system built by the Material and Construction ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50864

20. Dynamic Calibration for Instruments
Published: Date unknown
Author: Robert Charles Hagwood
Abstract: The NIST Pressure Measurements Division provides calibration service for pressure instruments that customers in turn use to calibrate other instruments. Often during their useable lifetime, these instruments are calibrated and recalibrated several ti ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150362



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