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You searched on: Author: blaza toman

Displaying records 21 to 30 of 39 records.
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21. Statistical Interpretation of Key Comparison Degrees of Equivalence Based on Distributions of Belief
Published: 4/2/2007
Author: Blaza Toman
Abstract: In a Key Comparison experiment, the Mutual Recognition Arrangement (MRA) requires the calculation of the Degrees of Equivalence (DoE) and the accompanying measures of uncertainty. Unilateral DoEs have been defined as a difference between a laboratory ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50904

22. Comments on 'Bayesian evaluation of comparison data' by Ignacio Lira
Published: 1/1/2007
Authors: Raghu N Kacker, Blaza Toman
Abstract: A recent paper by Ignacio Lira in Metrologia 43 (2006) S231-S234 addresses a well-known problem in combining information from interlaboratory evaluations. Lira presents an expression, which he claims to be the kernel of a Bayesian posterior probabili ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50952

23. After Two Decades a Second Anchor for the VPDB delta-13-C Scale
Published: 11/15/2006
Authors: T.B. Coplen, W.A. Brand, M. Gehre, M. Groning, H.A.J. Meijer, Blaza Toman, R Michael Verkouteren
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901931

24. Uncertainty Analysis for Virtual Cement Measurement
Published: 9/13/2006
Authors: Blaza Toman, Adriana Hornikova, Robert Charles Hagwood, Hung-Kung Liu, Nien F Zhang, 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=50888

25. New Guidelines for d13C Measurements
Published: 4/1/2006
Authors: T Coplen, W A Brandt, M Gehre, Manfred Groning, HAJ Meijer, Blaza Toman, Jennifer R Verkouteren
Abstract: Consistency of 13C measurements can be improved 39-47% by anchoring the 13C scale with two isotopic referencematerials differing substantially in 13C/12C. It isrecommended that 13C values of both organic andinorganic materials be measured and expr ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=151802

26. New Guidelines for delta-13-C Measurements
Published: 4/1/2006
Authors: T.B. Coplen, W.A. Brand, M. Gehre, M. Groning, H.A.J. Meijer, Blaza Toman, R Michael Verkouteren
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901932

27. Consistency of Delta ^u13^ C Measurements Improved
Published: 2/1/2006
Authors: T B Copelen, W Brand, M Gehre, M Groening, HAJ Meijer, Blaza Toman, R Michael Verkouteren
Abstract: We present state-of-the-art measurements and data evaluation methods to show that the consistency of carbon isotope ratio measurements can be improved 39 % to 47 % by anchoring the measurement scale with two isotopic reference materials differing in ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831406

28. Consistency of Delta ^u13^ C Measurements Improved
Published: 2/1/2006
Authors: Blaza Toman, T Coplen, W Brand, R Michael Verkouteren, M Gehre, M Groening, HAJ Meijer
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901072

29. Linear Models in the Presence of Type B Uncertainty:A Bayesian View of Annex H.3 and H.5 of the Guide to the Expression of Uncertainty in Measurement
Published: 2/1/2006
Author: Blaza Toman
Abstract: Annex H.3 of the Guide to the Expression of Uncertainty in Measurement presents an example of calibration of a thermometer using a linear regression model. Annex H.5 of the same publication presents a class of statistical models and analysis techniq ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=151804

30. Comparison of ISO-GUM, draft GUM Supplement 1, and Bayesian statistics using simple linear calibration
Published: 1/1/2006
Authors: Raghu N Kacker, Blaza Toman, Ding Huang
Abstract: We compare three approaches for quantifying uncertainty using a measurement equation: the International Organization for Standardization (ISO) Guide to the Expression of Uncertainty in Measurement (GUM), draft GUM Supplement 1, and Bayesian statistic ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=150381



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