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Michael Brownstein, Robert A. Hoffman, Richard Levenson, Thomas E. Milner, Marla L. Dowell, Paul A. Williams, Grady S. White, Adolfas Gaigalas, Jeeseong C. Hwang
In order to maintain the rapid advance of biophotonics in the U.S. and to enhance our competitiveness worldwide, key measurement tools must be in place. As a
This report describes the development of a low cost vibration amplitude sensor. The processes used to develop this sensor involve the use of Micro-Electronic
Two experimental investigations were made in order to reduce background counts in neutron detectors. Each investigation relied upon the fact that neutron
Europe based its New World empires on the development and control of sources of sugar cane. Mercantilism dictated high tariffs on sucrose, which was still an
Ben N. Davis, Chriss A. Grosvenor, Robert T. Johnk, David R. Novotny, James R. Baker-Jarvis, Michael D. Janezic
Building materials are often incorporated into complex, multi-layer macrostructures that are simply not amenable to measurements using coax or waveguide sample
While most dimensional metrologists know that the reference temperature for dimensional measurements is 20 C, very few know how or why that temperature was
Herbert S. Bennett, Alain C. Diebold, C. M. Garner
We present an assessment of the state of the nation''s measurement system in its ability to meet the metrology needs of the semiconductor industry. Lacking an
Geoffrey B. McFadden, Sam R. Coriell, Katharine F. Gurski, David Cotrell
We perform linear stability calculations for horizontal fluid bilayers, taking into account both buoyancy effects and thermocapillary effects in the presence of
Tomography, in most formulations, requires an incoherent signal. For a conventional transmission electron microscope, the coherence of the beam often results in
The history of NBS/NIST Ionizing Radiation Programs for Photons and Electrons from 1928 to 1988 is reviewed. The Council on Ionizing Radiation Measurements and
Radiation force balance (RFB) measurements of time-averaged spatially-integrated ultrasound power transmitted into a reflectionless water load are based on
Fault detection and diagnostic (FDD) methods that can detect common mechanical faults and control errors in air-handling units (AHUs) and variable-air-volume
Steven W. Brown, Joseph P. Rice, J D. Jackson, Jorge E. Neira, Bettye C. Johnson
A common radiometric platform for the development of application-specific metrics to quantify the performance of sensors and systems is described. Using this
The comparison of high-precision ages of geological materials measured by laboratories engaged in geochronological studies has been limited by the lack of high
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
George W. Mulholland, Michelle K. Donnelly, Robert C. Hagwood, S R. Kukuck, Vincent A. Hackley, D Y. Pui
The peak particle size and expanded uncertainties (95 % confidence interval) for two new particle calibration standards are measured as 101.60 nm ? 1.02 nm and
Adriaan C. Carter, James A. Fedchak, Raju V. Datla
The Low Background Infrared (LBIR) facility at the National Institute of Standards and Technology (NIST) presently maintains four absolute cryogenic radiometers
Sung Kim, Diane K. Hancock, Lili Wang, Kenneth D. Cole, Prasad T. Reddy
Ricin is an abundant protein from the castor bean plant Ricinus communis. Because of its high toxicity and the simplicity of producing mass quantities, ricin is
Simulating and understanding traffic dynamics in large networks present difficult challenges due to the complexity of such networks, coupled with limitations
Jamie L. Almeida, Lili Wang, Jayne B. Morrow, Kenneth D. Cole
Bacillus anthracis spores have been used as biological weapons and the possibility of their further use requires surveillance systems that can accurately and
A numerical procedure is described in which the aerodynamic drag and torque in low Earth orbit are calculated for a prototype Space Shuttle external tank and
Terrence J. Jach, A S. Bakulin, S M. Durbin, J Pedulla, A T. Macrander
We describe the distinction between the operation of a short focal lengthx-ray microscope forming a real image with a laboratory source (convergentillumination)
Christoph J. Witzgall, David E. Gilsinn, Marjorie A. McClain
Lavery splines are examined in the univariate and bivariate cases. In both instances relaxation based algorithms for approximate calculation of Lavery splines