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Displaying 3851 - 3875 of 17264

An Analysis of Recent Standards on Composite Product Models to Enable Digital Transformation of Composite Product Manufacturing

June 12, 2019
Author(s)
Thomas D. Hedberg, Allison Barnard Feeney, Vijay Srinivasan
… ASME and ISO are issuing new editions of their standards that deal with definitions and models for composite … This paper analyzes several salient features of these two standards with a focus on their potential impact on the … An Analysis of Recent Standards on Composite Product Models to Enable Digital …

Expression and characterization of 15N-labeled human C-reactive protein in Escherichia coli and Pichia pastoris for use in isotope-dilution mass spectrometry

September 1, 2012
Author(s)
Eric L. Kilpatrick, Wei-Li Liao, Johanna Camara, Illarion V. Turko, David M. Bunk
… mass spectrometry using stable isotope labeled internal standards is unsurpassed in its ability to quantify analytes … fitness of the expressed proteins to be used as internal standards for isotope dilution mass spectrometry was …

Development of ASTM C 1421-99 Standard Test Methods for Determination of Fracture Toughness of Advanced Ceramics

October 23, 2003
Author(s)
I Bar-On, George D. Quinn, J A. Salem, M J. Jenkins
… ASTM C1421, Standard Test Methods for Determination of Fracture Toughness … is a high-quality, technically rigorous, full-concensus standard that may have finally answered the question, What is … choice of dimensions and test parameters included in the standard. In addition, the Standard Reference Material NIST …

Precision Metrology for Fiber-Amplifier Noise Figure Traceable to a RIN Standard

August 16, 2004
Author(s)
Gregory E. Obarski, Paul D. Hale
… based on application of a relative intensity noise (RIN) standard to the RIN subtraction method. Calibration of a RIN/noise figure measurement system using the standard yields a typical standard uncertainty of <0.25 dB for frequency-resolved noise … for Fiber-Amplifier Noise Figure Traceable to a RIN Standard …

Absolute Flux Calibration of Stars; Calibration of the Reference Telescope

June 2, 2009
Author(s)
Allan W. Smith, John T. Woodward IV, Colleen A. Jenkins, Steven W. Brown, Keith R. Lykke
Absolute stellar photometry is based on 1970s terrestrial measurements of the star Vega with instruments calibrated using the Planckian radiance from a Cu fixed-point blackbody. Significant advances in absolute radiometry have been made in the last 30

Primary Pressure Standards Based on Dimensionally Characterized Piston/Cylinder Assemblies

February 1, 2006
Author(s)
James W. Schmidt, K. Jain, A P. Miiller, Walter J. Bowers Jr., Douglas A. Olson
… (35.8 mm) piston/cylinder assemblies as primary pressure standards in the range from 0.05 to 1.0 MPa with … manometers. The realizations of the artifacts as primary standards are based on the dimensional characterization of … Primary Pressure Standards Based on Dimensionally Characterized …

Comparison of High Frequency AC-DC Voltage Transfer Standards at NRC, VSL, PTB, and NIST

May 1, 2000
Author(s)
Piotr S. Filipski, C. J. van Mullem, D. Janik, M. Klonz, Joseph R. Kinard Jr., Thomas E. Lipe Jr., Bryan C. Waltrip
… international comparisons relating TVC RF voltage transfer standards of the National Research Council of Canada (NRC) to the standards of three National Metrology Institutes (NMIs): NMi … Bundesanstalt (PTB), Germany, and National Institute of Standards and Technology (NIST), USA. The first comparison …

Laser Refractometer as a Transfer Standard of the Pascal

July 9, 2016
Author(s)
Patrick Egan, Jack A. Stone Jr., Jacob Edmond Ricker, Jay H. Hendricks
… laser refractometer represents a state-of-the-art transfer standard of the pascal. We also claim the refractometer has … Laser Refractometer as a Transfer Standard of the Pascal …

Secondary standards for 223Ra revised

March 5, 2015
Author(s)
Denis E. Bergeron, Jeffrey T. Cessna, Brian E. Zimmerman
… (i.e., dial settings), directly linked to NIST primary standards, are reported here. In addition, the raw data used … Secondary standards for 223Ra revised …

Exploring Model-Based Engineering Concepts for Additive Manufacturing

September 15, 2015
Author(s)
Robert R. Lipman, Jeremy S. McFarlane
… for additive manufacturing. Existing and emerging standards for part geometry (ASTM AMF, 3MF, ISO 10303 STEP) … to the additive manufacturing process. Details of the standards will be discussed, how their use and improvement … additive manufacturing, geometry, tolerances, standards, interoperability, model-based engineering …
Displaying 3851 - 3875 of 17264
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