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Search Publications by: William F Guthrie (Assoc)

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Displaying 51 - 75 of 192

Performance of New and Aged Residential Fire Smoke Detectors

April 1, 2011
Author(s)
Jason D. Averill, Richard G. Gann, William F. Guthrie, Daniel Murphy
As part of the Consumer Product Safety Commission (CPSC) technical staff program to determine the effects of emissions from imported drywall on residential electrical, gas distribution, and fire safety components, the National Institute of Standards and

Nodal Analysis Estimates of Fluid Flow from the BP Macondo MC252 Well

March 10, 2011
Author(s)
George Guthrie, Rajesh Pawar, Curt Oldenburg, Todd Weisgraber, Grant Bromhal, Phil Gauglitz, John Bernardin, David Dixon, Rick Kapernick, Bruce Letellier, Brett Okhuysen, Robert Reid, Barry M. Freifeld, Karsten Pruess, Lehua Pan, Stefan Finsterle, George J. Moridis, Matthew T. Reagan, Thomas A. Buscheck, Christopher M. Spadaccini, Roger D. Aines, Brian Anderson, Robert Enick, Roy Long, Shahab Mohaghegh, Bryan Morreale, Neal Sams, Doug Wyatt, L A. Mahoney, J A. Bamberger, J Blanchard, J Bontha, C W. Enderlin, J A. Fort, P A. Meyer, Y Onishi, D M. Pfund, D R. Rector, M L. Stewart, B E. Wells, S T. Yokuda, Antonio Possolo, William F. Guthrie, Pedro I. Espina
The Nodal-Analysis Team within the Flow Rate Technical Group predicted the flow-related pressure drops from the reservoir to release points to estimate flow rates for various time periods for the Macondo well. These estimates were based on predictions from

Interlaboratory Study of Alternate Filter Papers for Use in ASTM E 2187

December 11, 2009
Author(s)
Richard G. Gann, William F. Guthrie
ASTM E 2187 has become the internationally referenced standard for designing and specifying less fire-prone cigarettes. In this test method, a lit cigarette is laid on multiple layers of filter paper, and the observer identifies whether the cigarette burns

Comparison of Clinical Methods with Isotope Dilution ICP-MS for the New Standard Reference Material 955c Lead In Caprine Blood

May 26, 2009
Author(s)
Karen E. Murphy, Thomas W. Vetter, Gregory C. Turk, Christopher D. Palmer, Miles E. Lewis, Ciaran M. Geraghty, Patrick J. Parsons, William F. Guthrie
The National Institute of Standards and Technology (NIST) has developed Standard Reference Material (SRM) 955c, a new caprine-based, four-level blood standard with certified blood lead levels (BLLs) ranging from 0.4 µg/dL (0.02 µmol/L) Pb to 45 µg/dL (2.17

Three Statistical Paradigms for the Assessment and Interpretation of Measurement Uncertainty

January 12, 2009
Author(s)
William F. Guthrie, Hung-Kung Liu, Andrew L. Rukhin, Blaza Toman, Chih-Ming Wang, Nien F. Zhang
The goals of this chapter are to present different approaches to uncertainty assessment from a statistical point of view and to relate them to the methods that are currently being used in metrology or are being developed within the metrology community. The

A Gravimetric Approach to the Standard Addition Method in Instrumental Analysis 1

October 16, 2008
Author(s)
William R. Kelly, Bruce S. MacDonald, William F. Guthrie
A general mathematical formulation for the method of standard additions is presented that has universal applicability. It is based on gravimetry rather than volumetry which reduces the preparation time, gives greater flexibility to design because one is

MCMC in StRD

October 16, 2008
Author(s)
Hung-Kung Liu, William F. Guthrie, D Malec, Grace L. Yang
The numerical inaccuracies caused by floating point arithmetic, although often not important, can change the conclusions of an analysis. Computational accuracy is of increasing concern because the number of software packages has exploded as computers have

Certification of SRM 46H

January 1, 2008
Author(s)
Chiara F. Ferraris, William F. Guthrie, Max A. Peltz, Robin K. Haupt
The standard reference material (SRM) for fineness of cement, SRM 114, is an integral part of the calibration material routinely used in the cement industry to qualify cements. Since 1934, NIST has provided SRM 114 for cement fineness testing and it will

Comparison of SEM and HRTEM CD Measurements Extracted from Test-Structures Having Feature Linewidths from 40 nm to 240 nm

January 1, 2008
Author(s)
Michael W. Cresswell, Richard A. Allen, William F. Guthrie, Christine E. Murabito, Ronald G. Dixson, Amy Hunt
CD (Critical Diminsion) measurements have been extracted from SEM (Scanning Electron Microscopy) and HRTEM (High Resolution Transmission Electron Microscopy) images of the same set of monocrystalline silicon features having linewidths between 40 nm and 240

Nano- and Atomic-Scale Length Metrology

December 14, 2007
Author(s)
Theodore V. Vorburger, Ronald G. Dixson, Joseph Fu, Ndubuisi G. Orji, Shaw C. Feng, Michael W. Cresswell, Richard A. Allen, William F. Guthrie, Wei Chu

Interlaboratory Comparisons

December 10, 2007
Author(s)
William F. Guthrie
An interlaboratory comparison for a measurement procedure is an exercise carried out by a group of laboratories to compare their performance or assess a measurement standard. Interlaboratory comparisons are typically used for one of three main purposes, to

Effect of Static Analysis Tools on Software Security: Preliminary Investigation

October 29, 2007
Author(s)
Vadim Okun, William F. Guthrie, Romain Gaucher, Paul E. Black
Static analysis tools can handle large-scale software and find thousands of defects. But do they improve software security? We evaluate the effect of static analysis tool use on software security in open source projects. We measure security by