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Displaying 1576 - 1600 of 17262

Cryocooled 10 V Programmable Josephson Voltage Standard

December 11, 2014
Author(s)
Alain Rufenacht, Logan A. Howe, Anna E. Fox, Robert E. Schwall, Paul D. Dresselhaus, Charles J. Burroughs, Samuel P. Benz
… and packaging of our 10 V Programmable Josephson Voltage Standard circuits have enabled the successful operation of … Cryocooled 10 V Programmable Josephson Voltage Standard …

BUSINESS OBJECTS FOR INDUSTRIAL DATA STANDARDS

August 31, 2011
Author(s)
Allison Barnard Feeney, Keith A. Hunten
… for inclusion in the ISO 10303 family of industrial data standards developed in ISO TC 184/SC4 (SC4), are a layer over … that is intended to simplify and make the complex standards more accessible to a wider audience, ease … BUSINESS OBJECTS FOR INDUSTRIAL DATA STANDARDS …

Report on the CCEM Comparison of 10 pF Capacitance Standards

May 1, 2000
Author(s)
Anne-Marie Jeffery
… of 10 pF capacitors. The comparison of electrical standards between the regional metrology organization (RMOs) … capacitance measurements, capacitance standards, farad, key comparison, metrology, reference value … Report on the CCEM Comparison of 10 pF Capacitance Standards …

Effect of ''glancing'' collisions in the cold atom vacuum standard

February 12, 2025
Author(s)
Stephen Eckel, Daniel Barker, James A. Fedchak, Jacek Klos, Julia Scherschligt, Eite Tiesinga
… pressure readings of the cold-atom vacuum standard (CAVS), based on either ultracold $^7$Li or $^87}$Rb … results of a comparison between a traditional pressure standard—a combined flow meter and dynamic expansion … vacuum metrology, pressure measurement, primary gauge, standard …

THE CERTIFICATION OF STANDARD REFERENCE MATERIAL 660C FOR POWDER DIFFRACTION

January 15, 2020
Author(s)
David R. Black, Marcus H. Mendenhall, Albert Henins, James J. Filliben, James P. Cline
… of Standards and Technology (NIST) certifies a suite of Standard Reference Materials (SRMs) to evaluate specific … certification, diffractometer, lattice parameter, standard reference material, X-ray diffraction … THE CERTIFICATION OF STANDARD REFERENCE MATERIAL 660C FOR POWDER DIFFRACTION …

Uncertainty budget for the NIST Electron Counting Capacitance Standard, ECCS- 1

November 21, 2007
Author(s)
Mark W. Keller, Neil M. Zimmerman, Ali L. Eichenberger
… the two methods and find that they agree within a relative standard uncertainty of $9.2 \times 10^-7}$. This comparison … capacitance standard, quantum metrology triangle, single-electron … budget for the NIST Electron Counting Capacitance Standard, ECCS- 1 …

Optimization of Wye-D-Type Quantum Hall Resistance Standard

August 30, 2024
Author(s)
Yanfei Yang, Dean G. Jarrett, Alireza Panna, Albert Rigosi, David B. Newell, Randolph Elmquist, Cheng Hsueh Yang, Ngoc Thanh Mai Tran
… optimize the transformation with quantum Hall resistance standard and propose a dual-output prototype for 1 MΩ and 100 … Optimization of Wye-D-Type Quantum Hall Resistance Standard …

Conformity Assessment Considerations for Federal Agencies

September 30, 2018
Author(s)
Lisa J. Carnahan, Amy L. Phelps
… The Standards Coordination Office periodically publishes information related to standards and conformity assessment as a service. This … Special Publication (NIST SP) - 2000-02 … conformity assessment, standards, scheme owner, oversight …

Progress on CD-AFM tip width calibration standards

May 10, 2011
Author(s)
Ronald G. Dixson, Boon Ping Ng, Craig D. McGray, Ndubuisi G. Orji, Jon C. Geist
… The National Institute of Standards and Technology (NIST) is developing a new generation of standards for calibration of CD-AFM tip width. These standards, known as single crystal critical dimension … metrology, CD, linewidth, reference measurement system, standards, calibration, traceability …

STEP: The Grand Experience

October 1, 1999
Author(s)
Sharon J. Kemmerer
… (IT) tools that support the implementation of IT standards; and -dissemination of information about the standards. A further objective of this document is to inform the reader as to the importance of standards in facilitating the ability of companies to … Special Publication (NIST SP) - 939 …

Comparison of the NIST and BIPM Standards for Air Kerma in Medium-Energy X-Rays

October 1, 2006
Author(s)
D T. Burns, C M. O'Brien
… A comparison has been made of the air-kerma standards for medium-energy x-rays of the National Institute of Standards and Technology (NIST) and the Bureau International … measurements at the BIPM and the NIST using the air-kerma standards and three NIST reference-class transfer ionization …

Certification of Standard Reference Material(R) 955d, Toxic Elements and Metabolites in Frozen Human Blood

October 15, 2020
Author(s)
Lee L. Yu, Karen E. Murphy, Colleen E. Bryan Sallee, Thomas W. Vetter, Robert C. Hagwood, George C. Caceres, Stephen E. Long, J M. Jarrett, M A. Franklin, J Castro Georgi, D M. Jones, Robert Jones, Z Li, Y L. Sommer, D S. Tevis, K Wallon, C D. Ward, M Maras, S Erdahl, C Gilmer, M Wermers, H Woldeysus, K F. Mehigan, M Morrissette, Christopher D. Palmer, Patrick J. Parsons
… Standard Reference Material (SRM) 955d is intended for use in … Human blood, Standard Reference Material (SRM), Arsenic (As), Cadmium … Certification of Standard Reference Material(R) 955d, Toxic Elements and …

General steps to standardize the laboratory measurement of serum total 25-hydroxyvitamin D

August 1, 2017
Author(s)
Karen W. Phinney, Christopher T. Sempos, J. M. Betz, Johanna Camara, Graham D. Carter, E. Cavalier, Michael W. Clarke, Kirsten D. Dowling, Ramon Durazo-Arvizu, Andrew N. Hoofnagle, A Liu, Kurtis Sarafin, Stephen A. Wise, Paul M. Coates
… that routine clinical and research laboratories can use to standardize their 25(OH)D assays using those tools. The steps … results to develop a master equation that can be used to standardize results to the reference methods and materials is … General steps to standardize the laboratory measurement of serum total …

Accurate Determination of High Energy Gamma-Ray Standards

October 16, 2008
Author(s)
Ernest G. Kessler Jr., Maynard S. Dewey, R Deslattes, Albert Henins, H G. Borner, M Jentschel, H Lehmann
… to the 2 to 6 MeV region is described. Gamma-ray standards with a relative uncertainty of (2 to 5)x10 -7 are … atomic masses, crystal diffraction, gamma-ray standards … Accurate Determination of High Energy Gamma-Ray Standards …

A Shape Modeling Application Program Interface (API) for the STEP Standard

November 1, 2000
Author(s)
Mike Pratt, B D. Anderson
… The international standard ISO 10303 for the exchange of product models and … 1994. This paper reports on current work on extending the standard to enable the capture and transfer of parametrized … CAD systems. It is shown that the requirements for a standard in this area are virtually identical with those for …

Can a Pressure Standard be Based on Capacitance Measurements?

March 1, 1998
Author(s)
Michael R. Moldover
… We consider the feasibility of basing a pressure standard on measurements of the dielectric constant [epsilon] … and statistical mechanics. At present, the relative standard uncertainty of the pressure u r (P) would exceed … classical value is now known, a capacitance-based pressure standard might attain u r (P)-6 for pressures near 1 Mpa, a …

Coordinate Metrology and the Proposed E57.02 Static Pose Determination Standard

March 29, 2013
Author(s)
David MacKinnon, J.-Angelo Beraldin, Tsai H. Hong, Jeremy Marvel
… We present the Proposed Standard ASTM E57.02 "Standard Test Method for Evaluating Static Pose Measurement … by coordinate metrologists. The stated purpose of the standard is to provide metrics and procedures to evaluate how … pose estimation, ASTM, E57, non-contact 3D imaging system, standard …

Certification of Standard Reference Material 1476a, a Polyethylene Resin

November 29, 2007
Author(s)
Kathleen M. Flynn, S Wetzel, William R. Blair, J R. Maurey
… The melt flow rate of Standard Reference Material (SRM) 1476a Branched Polyethylene … A. The average results from 30 determinations yielded a standard deviation of 0.036g/10 min. The overall expanded … chromatography, melt flow rate, polymerization, SRM 1476, Standard Reference Material …
Displaying 1576 - 1600 of 17262
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