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NIST Authors in Bold

Displaying 551 - 575 of 2521

Atomic-Resolution Measurements With a New Tunable Diode Laser-Based Interferometer

January 1, 2004
Author(s)
Richard M. Silver, H Zou, S Gonda, Bradley N. Damazo, Jay S. Jun, Carsten P. Jensen, Lowell P. Howard
… interferometer which has demonstrated better than 20 picometer resolution measurement capability. This new … laser to be tracked with an accuracy enabling nominally 20 picometer resolution and accuracy. The new interferometer …

Quantum Hall Resistance Traceability for the NIST-4 Watt Balance

July 10, 2016
Author(s)
Dean G. Jarrett, Randolph Elmquist, Marlin E. Kraft, George R. Jones Jr., Shamith Payagala, Frank Seifert, Stephan Schlamminger, Darine El Haddad
… developed to support these measurements at better than 20 x 10^-9 standard uncertainty levels. …

A Novel Approach to Measuring Structural Similarity Between XML Documents

April 1, 2007
Author(s)
Boonserm Kulvatunyou, B Jeong, Dongjin Lee, Hyunbo Cho
Measuring structural similarity between XML documents has become a key component in various applications, including XML mining, schema matching, and web service discovery, among others. This paper presents a novel structural similarity measure

A Green Laser Pointer Hazard

August 2, 2010
Author(s)
Jemellie Galang, Alessandro Restelli, Edward W. Hagley, Charles W. Clark
… An inexpensive green laser pointer was found to emit 20 mW of infrared radiation during normal use. This is …

Highly charged ion (HCI) modified tunnel junctions

August 15, 2008
Author(s)
Joshua M. Pomeroy, Holger Grube
The neutralization energy carried by highly charged ions (HCIs) provides a fundamentally independent method for localizing energy on a target’s surface, producing features and modifying surfaces with fluences and kinetic energies that are negligible for

The Origin and Application of Leakage-Infiltration Ratios

September 13, 2016
Author(s)
Andrew Persily, Max Sherman, Benjamin Jones
… rate (infiltration equals air leakage divided by 20) is sometimes used and is known by many terms, such as the rule-of-20, leakage-infiltration ratio, Sherman's ratio, or the Kronvall-Persily rule. In practice, the value of 20 is not applicable to all buildings and climates, and …

Chemical and Thermophysical Characterization of 1,3,5-triisopropylcyclohexane

July 17, 2012
Author(s)
Thomas J. Bruno, Tara J. Fortin, Tara M. Lovestead, Jason A. Widegren
… from a single component to complex mixtures containing 20 or more components. A recent study on surrogate mixture … phenyl-95 %-dimethyl polysiloxane), refractive indices at 20, 25 and 30 oC. We also present thermophysical property … 70 oC, kinematic viscosity (at atmospheric pressure) from 20 to 100 oC. These properties and characterization …

Phase Diagram of the Relaxor Ferroelectric (1-x)Pb(Mg 1/3 Nb 2/3 )O 3-x PbTiO 3 Revisted: A neutron Powder Diffraction Study of the Relaxor Skin Effect

January 19, 2015
Author(s)
Daniel Phelan, Efrain E. Rodriguez, J Gao, Y Bing, Z.-G. Ye, Qingzhen Huang, Jinsheng Wen, Guangyong Xu, C. Stock, M Matsuura, Peter M. Gehring
… were prepared with nominal compositions of x=0.10, 0.20, 0.30, and 0.40 and divided into two identical sets, one … samples. Further, the diffraction patterns for x=0.10, 0.20, and 0.30 are best refined using the monoclinic Cm space …

Double-Focusing Thermal Triple-Axis Spectrometer at the NCNR

February 2, 2012
Author(s)
Y. Chen, Sung Chang, Yang Zhao, Songxue Chi, William D. Ratcliff, B. G. Ueland, Ross Erwin
… Center for Neutron Research (NCNR) is located at the BT-7 beam port. The 165 mm diameter reactor beam is equipped …

X-Ray Transition Energies: New Approach to a Comprehensive Evaluation

January 1, 2003
Author(s)
R Deslattes, Ernest G. Kessler, Paul Indelicato, L de Billy, E Lindroth, J Anton
… programs of parallel development extending over more than 20 years. At each of several progressively more refined … the case for a few isolated elements and transitions for 20 …

Friction Measurements of Ultra-Thin Carbon Overcoats in Air

April 1, 2002
Author(s)
P M. McGuiggan, C S. Bhatia, D Bogy, W Fong, Stephen M. Hsu
… was independent of the pressure for pressures less than 20 MPa. Water acts as a lubricant decreasing the friction … adsorbed from air, at least at the pressures less than 20 MPa and a velocity of 1 um/s. At 100% humidity, the shear …

Information Technology Measurement and Testing Activities at NIST

February 1, 2001
Author(s)
David Flater, James E. Fowler, Simon P. Frechette, Craig M. Shakarji, Michael Hogan, Shirley M. Radack, Douglas Montgomery, L Johnson, R Rosenthal, R Mccabe, R Carpenter, Lisa Carnahan, M M. Gray
Our high technology society continues to rely more and more upon sophisticated measurements, technical standards, and associated testing activities. This was true for the industrial society of the 20th century and remains true for the information society
Displaying 551 - 575 of 2521
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