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Recently, as part of a study of the ability of a Gaussian standing-wave interference field to sort small dielectric spheres entrained in a moving fluid, we
Nicholas G. Paulter Jr., Donald R. Larson, John A. Ely
The assessment of the detection performance of metal detectors (hand-worn, hand-held, and walk-through models) is based on the ability of the detectors to sound
This report summarizes the results of 16 NIST-ARRA Construction Grant Awards that provided more than $180 million to fund major scientific building construction
To do a better time comparison between high-precision clocks (such as Cesium Fountain clock and Hydrogen-maser clock), we want to study and eventually lower the
Tracking climate variables at the levels of precision and accuracy required to detect global change requires satellite sensors to make highly consistent
Roger V. Bostelman, Tsai H. Hong, Jeremy A. Marvel
This survey provides the basis for developing research in the area of mobile manipulator performance measurement, an area that has relatively few research
This paper presents an experimental and theoretical study of aqueous diesel contamination and decontamination of a polyvinyl chloride (PVC) surface and an iron
Methods to register two sets of data have existed for quite some time. However, these sets of data are rarely error-free. Consequently, any parameters obtained
A procedure will be described to assign to each dyed microsphere a number called the Equivalent number of Reference Fluorophores (ERF). The ERF unit gives the
Nicholas A. Vlajic, Akobuije D. Chijioke, Ricky L. Seifarth
Structural analysis of conical contact joints in the NIST 4.45 MN Dead Weight Machine using finite element analysis is presented in this paper. This analysis
In a model of network communication based on a random walk in an undirected graph, what subset of nodes (subject to constraints on its size), enable the fastest
X-ray powder diffraction (XRD) has been used for several decades to identify and measure the mass fractions of various crystalline phases in portland cement
In this work, we have compiled enthalpies of formation for nine hydrogen-oxygen species (HxOy) and selected values for use. The compilation consists of values
The Internet Time Service (ITS) at the National Institute of Standards and Technology (NIST) currently receives over 12 billion time requests per day. ITS
Managing the design of products and the efficient execution of the manufacturing processes needed to produce them is an endeavor fraught with all manner of
Given an undirected network, we describe a two- dimensional graphical measure based on the con- nected component distribution of its degree-limited subgraphs
Grady S. White, Adrian Verwolf, Chris M. Poling, Nicholas Barbosa, Nikki S. Rentz
Silicon wafers with micro-machined holes were evaluated for use as low permeation standard artifacts. Accuracy, stability, and reliability were assessed. Two
Laboratory notebooks have been a staple of scientific research for centuries for organizing and documenting ideas and experiments. Modern laboratories are more
Thomas P. Kole, Kuo-Tang Liao, Daniel R. Schiffels, Robert Ilic, Elizabeth Strychalski, Jason Kralj, James Alexander Liddle, Anatoly Dritschilo, Samuel Stavis
Marcus H. Mendenhall, Katharine Mullen, James P. Cline
This work presents an open implementation of the Fundamental Parameters Approach (FPA) models for analysis of X-ray powder diffraction line profiles. The
James P. Cline, Marcus H. Mendenhall, David R. Black, Donald A. Windover, Albert Henins
The laboratory X-ray powder diffractometer is one of the primary analytical tools in materials science. It is applicable to nearly any crystalline material, and
The devices calibrated most frequently by the acoustical measurement services at the National Institute of Standards and Technology (NIST) over the 50-year
Ronald Colle, Ryan P. Fitzgerald, Lizbeth Laureano-Perez
Ultra-pure, carrier-free 209Po solution standards have been prepared and standardized for their massic alpha-particle emission rate. The standards, which will
Hao H. Zhang, Daniel B. Ott, Jun-Feng Song, D Ott, Wei Chu
The spline filters and the corresponding robust filters are commonly used filters recommended in ISO standards for surface evaluation. Generally, these linear
Denis E. Bergeron, Jeffrey T. Cessna, Leticia S. Pibida
After discovering a discrepancy in the transfer standard currently being disseminated by the National Institute of Standards and Technology (NIST), we have
SAGRAD, a Fortran 77 program for computing neural networks for classification using batch learning, is discussed. Neural network training in SAGRAD is based on
This paper traces the development of physical standards and measurement methodologies for calibrating satellite based optical sensors in the civilian sector for