U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

NIST Authors in Bold

Displaying 12126 - 12150 of 13225

Standards for Monitoring the Temperature of Earth From Space

October 16, 2008
Author(s)
Joseph P. Rice
… Energy (DOE), and other Government agencies have projects in which space-flight instruments monitor the temperatue and … of Earth through radiance measurements. The NIST Optical Technology Division has several programs with these agencies … their radiometric measurement standards. Uncertainties in the range of 0.01 K to 0.5 K are typically sought. One …

Structural Studies of Biological Minerals in Dental Research

October 16, 2008
Author(s)
M Mathew, S. Takagi
… Research Center, National Institute of Standards and Technology was initiated in the early 1970's to provide a broad structural basis for … for tooth mineral. However, apatites as they occur in biological tissues, mineral formations and laboratory … Structural Studies of Biological Minerals in Dental Research …

Design and Performance of the new NIST Hybrid Humidity Generator

August 1, 2008
Author(s)
Christopher W. Meyer, W Wyatt Miller, Dean C. Ripple, Gregory E. Scace
… constructed at the National Institute of Standards and Technology. Once fully operational, the NIST Hybrid Humidity … to 85 C, and is expected to outperform the 2-P Generator in terms of accuracy. The HHG combines the two-pressure and … of the HHG is a heat exchanger/saturator that is immersed in a temperature-controlled bath stable to within 1 mK. A …

ECS Transactions

May 18, 2008
Author(s)
Yaw S. Obeng, Stephen Knight, Joaquin (. Martinez
… programs at the National Institute of Standards and Technology (NIST). In this paper, we provide an overview of the recent advances in nanoelectronics enabling metrology developments at NIST. …

Results in Coastal Waters With High Resolution In Situ Spectral Radiometry: The Marine Optical System ROV

October 5, 2007
Author(s)
M Yarbrough, M Feinholz, S Flora, Terrance Houlihan, B. Carol Johnson, Yong S. Kim, Marilyn Y. Murphy, Michael Ondrusek, D K. Clark
… of normalized water-leaving spectral radiance using in-water radiometry requires measurements of the up-welling … of the MOS underwater housing led to adapting MOS and ROV technology. This system provides for measurement of the … Results in Coastal Waters With High Resolution In Situ Spectral …

Quantum dot single photon sources studied with superconducting single photon detectors

November 1, 2006
Author(s)
Martin Stevens, Robert Hadfield, Sae Woo Nam, Richard Mirin
… correlation expected from two independent single emitters. In addition, we characterize the performance of a … characterize the emission from a single InGaAs QD embedded in a micropillar cavity, measuring a spontaneous emission … Montana Meeting on Fundamental Optical Processes in Semiconductors …

Quantum dot single photon sources studied with superconducting single photon detectors

November 1, 2006
Author(s)
Martin J. Stevens, Robert Hadfield, Robert E. Schwall, Sae Woo Nam, Richard P. Mirin
… correlation expected from two independent single emitters. In addition, we characterize the performance of a … characterize the emission from a single InGaAs QD embedded in a micropillar cavity, measuring a spontaneous emission … IEEE Journal of Selected Topics in Quantum Electronics …

Contamination and Decontamination of Building Plumbing Systems

September 25, 2006
Author(s)
Stephen J. Treado, Mark A. Kedzierski, Stephanie S. Watson, Kenneth D. Cole
… of drinking water has always been a subject of interest. In fact, a stable and secure supply of clean drinking water … have been occasional documented incidents of this type in the past, which have raised substantial public health … research program, the National Institute of Standards and Technology (NIST) has commenced an interdisciplinary project …

NIST Industrial Control System Security Activities

June 26, 2006
Author(s)
Keith A. Stouffer
… The National Institute of Standards and Technology (NIST) has several ongoing efforts to address … Control Security Requirements Forum (PCSRF), formed in spring of 2001, is a 650 member working group of users, vendors, and integrators in the process control industry which is addressing the cyber …

Low Background Temperature Calibration of Infrared Blackbodies

March 23, 2006
Author(s)
Adriaan C. Carter, Raju V. Datla, Timothy M. Jung, Allan W. Smith, James A. Fedchak
… (LBIR) facility at the National Institute of Standards and Technology (NIST) has performed 10 calibrations of … is presented showing a surprisingly large spread in blackbody performance. While some blackbodies performed … Radiometers (ACRs) that are used as detector standards in the calibration of the blackbodies. Recent …

The NIST Kolsky Bar Data Processing System

June 7, 2005
Author(s)
Eric P. Whitenton
… has been built at the National Institute of Standards and Technology (NIST) to measure dynamic material properties for …

Angle Metrology Using AAMACS and Two Small-Angle Measurement Systems

November 28, 2003
Author(s)
Jack A. Stone Jr., M Amer, Bryon S. Faust, Jay H. Zimmerman
… employed at NIST(National Institute of Standards and Technology) makes use of an automated stack of three indexing … Automated Master Angle Calibration System (AAMACS)-- in conjunction with one of two possible instruments for … we have also used a Fizeau phase-stepping interferometer in this role. We have performed numerous experiments to …

Comparison of Laser-Based and Conventional Calibrations of Sun Photometers

November 1, 2003
Author(s)
N Souaidia, C Pietras, G Fargion, R Barnes, R Frouin, Keith R. Lykke, Bettye C. Johnson, Steven W. Brown
… been developed at the National Institute of Standards and Technology. Sensors can be calibrated in this facility for absolute spectral irradiance and … 0.15% to 0.25%. Two multi-channel filter radiometers used in the Sensor Intercomparison and Merger for Biological and …

The NIST Traceable Reference Material Program for Wavelength Reference Absorption Cells

August 1, 2003
Author(s)
Timothy J. Drapela, Sarah L. Gilbert, William C. Swann, Chih-Ming Wang
… maintained by the National Institute of Standards and Technology (NIST) and Standard Reference Materials produced … four absorption-cell SRMs for calibration of wavelengths in the 1510 nm to 1630 nm optical-fiber communications … The responsibilities of the producer and NIST are detailed in this document, along with NTRM specifications and …

ThermoML - an XML-Based Approach to Standardize Storage and Exchange of experimental and Critically Evaluated Thermophysical and Thermochemical Property Data. 1. Experimental Data

February 1, 2003
Author(s)
Michael D. Frenkel, Robert D. Chirico, Vladimir Diky, Qian Dong, Svetlana Frenkel, Paul R. Franchois, K N. Marsh, R C. Wilhoit, D L. Embry, T L. Teague
… adiabatic heat-capacity calorimetry. The role of ThermoML in (Global data submission and dissemination is discussed with particular emphasis on the new cooperation in data processing between the Journal of Chemical and … Center (TRC) at the National Institute of Standards and Technology. The text of several data files illustrating the …

A Two-Phase Airframe Shielding Performance Study Using Ultra-wideband Measurement Systems

January 1, 2003
Author(s)
Chriss A. Grosvenor, Robert T. Johnk, David R. Novotny, Seturnino Canales, Claude Weil, Jason Veneman
… The National Institute of Standards and Technology participated in a comprehensive study of electromagnetic aircraft … demonstrate that our measurement methods work well in cluttered environments, and with suitable correction …

Determination of Sodium in Blood Serum by Inductively Coupled Plasma Mass Spectrometry

November 1, 2002
Author(s)
Stephen E. Long, Thomas W. Vetter
… as a serum electrolyte, sodium is determined routinely in clinical laboratories. In the United States, the accuracy of these measurements is … are supported by the National Institute of Standards and Technology through the production of serum matrix Standard … Determination of Sodium in Blood Serum by Inductively Coupled Plasma Mass Spectrometry …

Thermal Modeling of Multiple-Line-Heat-Source Guarded Hot Plate Apparatus

October 1, 2002
Author(s)
William M. Healy, D R. Flynn
… The National Institute of Standards and Technology is building an advanced-design guarded hot plate … properties for specimens of thermal insulation 500 mm in diameter, with thicknesses up to 110 mm, at mean … thermal modeling and analyses that were carried out in the course of designing this apparatus and characterizing …

Experiences with Point Cloud Registration

September 1, 2002
Author(s)
Christoph J. Witzgall, Geraldine Cheok
… The development of LADAR (laser distance and ranging) technology to acquire 3D spatial data made it possible to … another point cloud, then the first point cloud is meshed in order to create a triangulated surface against which to … extent to which the point cloud differs from the surface in areas of overlap. Two such measures-of-fit have been …

Observations on Differences Between the Energy Determined Using an Instrumented Striker and Dial/Encoder Energy

June 1, 2002
Author(s)
M P. Manahan, R B. Stonesifer, Thomas A. Siewert, Christopher N. McCowan, D P. Vigliotti
… are widely used for measurement of absorbed energy in both conventional and miniature Charpy tests. It has been … measured using these two technologies, while generally in good agreement, sometimes differs by up to 20% (3 to 4.5 … to show the significance of residual vibrational energy in the test machine may show that low energy Charpy specimen …
Displaying 12126 - 12150 of 13225
Was this page helpful?