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As part of an effort to characterize the uncertainties associated with temperature measurements in fire environments, models of bare bead, single-shielded...
A new method has been developed to calibrate tristimulus colorimeters for high accuracy color measurements. Instead of traditional lamp standards, modern, high...
This was an extended abstract prepared for inclusion in the Microscopy & Microanalysis '99 Proceedings. It is a summary of Observation of Antiparallel Magnetic...
Based on concerns about indoor air quality and trends towards tighter envelope construction, there has been increasing interest in mechanical ventilation of...
There is increasing interest worldwide in the use of performance standards for removing barriers to the acceptance of housing innovation.The use of performance...
The degree of self-desiccation in field concrete depends on the availability of external water to replace that consumed due to the chemical shrinkage that...
Dale P. Bentz, Paul E. Stutzman, C Haecker, S Remond
Scanning electron microscopy and X-ray imaging techniques have been developed for imaging the complex microstructure of cement-based materials such as cement...
A critical step in selecting the most appropriate repair strategy for a distressed concrete structure is to determine the corrosion status of reinforcing bars...
The following brief essay attempts to summarize some of my remarks at the closing session of X- 99. The three sections below include a well-deserved...
Eric L. Shirley, J A. Carlisle, Steven R. Blankenship, R N. Smith, L J. Terminello, J J. Jia, T A. Callcott, D L. Ederer
X-ray optical processes in solids--absorption, fluorescence and resonantscattering--are modeled within a band-structure-basedapproach to describe electron...
We report measurements of heat transfer coefficients of flowing supercritical carbon dioxide (7.38 MPa critical pressure, 31.1 degrees C critical temperature)...
Robert Allen, Ram D. Sriram, Srinivas Nidamarthi, S P. Regalla
Industry and academia are increasingly demonstrating the benefits of Internet based collaborative work for product design and development. For example...
Dean G. Jarrett, Ronald F. Dziuba, Marlin E. Kraft
NIST-built 10 T ω and commercial 1 T ω standard resistors were hand carried between NIST and Sandia for a high resistance comparison. The comparison tested the...
Mark R. VanLandingham, Xiaohong Gu, D T. Raghavan, Tinh Nguyen
Recent advances have been made on two fronts regarding the capability of the atomic force microscope (AFM) to characterize the mechanical response of polymers...
We will describe a new causal power-normalized waveguide equivalent-circuit theory and explore its implications. The new theory marries a power normalization...
Christopher L. Holloway, Paul Mckenna, Robert T. Johnk
In this paper, we present a model that accounts for the gaps between ferrite tiles which occur during the installation of the tiles in anechoic chambers.
The National Institute of Standards and Technology (NIST) operates a number of research projects to advance measurement science and technology for the...
Richard J. Braun, J Zhang, John W. Cahn, Geoffrey B. McFadden, A A. Wheeler
We describe a mean field, free energy model that allows the computation of realistic phase diagrams for a particular set of ordering transitions in face...
Donald L. Hunston, Gale A. Holmes, R C. Peterson, Walter G. McDonough
In this paper, precise measurements of fiber break regions formed during the single fiber fragmentation testing procedure have been made for E-glass/diglycidyl...
Experimental data were collected for the purpose of validating multiphase combustion models and submodels. A spray combustor was fabricated that permits well...
Active cavity radiometers (ACRs) have been used for years to measure solar radiation and Earth radiation from low Earth orbit. Extant space-flight ACRs were...
Spiral inductors that are fabricated through a CMOS process, are micromachined by using a new post-processing procedure. In this new technique, the inductors...
V. Milanovic, M. Hopcroft, C. A. Zincke, Michael Gaitan, Mona E. Zaghloul
Micromachined power sensors with operation up to 50 GHz were recently achieved in CMOS technology. to improve their sensitivity and signal-to-noise ratio, while...
Gale A. Holmes, Donald L. Hunston, Walter G. McDonough, R C. Peterson
Precise measurements of fiber break regions formed during the single fiber fragmentation testing procedure indicate that the calculated interfacial shear...
We consider the role of constraints in maintaining both secrecy and integrity in a multilevel secure database. In a multilevel database, certain integrity and...
The Web has emerged as a dominant mode of making information available and is increasingly seen as the medium to support collaboration across boundaries of...