Results 61 to 70 of about 172,462 (196)

Close-up on light red limestone from Morrison, Colorado, a sample set in the NIST stone wall [PDF]

open access: yes, 2017
The NIST stone wall was built using 2,352 stones from 47 US states and 320 from 16 foreign countries. The wall is approximately 12 m long, 4 m high, 0.6 m thick at the bottom, and 0.3 m at the top. The aim of the wall construction was to study the aging
National Institute of Standards and Technology and Technology
core  

In the center of this image is a fossil-filled marble from Salzburg, Austria, part of the NIST stone wall [PDF]

open access: yes, 2017
The NIST stone wall was built using 2,352 stones from 47 US states and 320 from 16 foreign countries. The wall is approximately 12 m long, 4 m high, 0.6 m thick at the bottom, and 0.3 m at the top. The aim of the wall construction was to study the aging
National Institute of Standards and Technology and Technology
core  

Selective Area Growth and Structural Characterization of GaN Nanostructures on Si(111) Substrates

open access: yesCrystals, 2018
Selective area growth (SAG) of GaN nanowires and nanowalls on Si(111) substrates with AlN and GaN buffer layers grown by plasma-assisted molecular beam epitaxy was studied.
Alexana Roshko   +4 more
doaj   +1 more source

A close-up view of black basalt from the state of Puebla in Mexico, set in the NIST stone wall [PDF]

open access: yes, 2017
The center of thise image is Black basalt from the state of Puebla in Mexico. It is part of the NIST stone wall, which was built using 2,352 stones from 47 US states and 320 from 16 foreign countries.
National Institute of Standards and Technology and Technology
core  

NIST Calibration of a Neutron Spectrometer ROSPEC [PDF]

open access: yes, 2006
A neutron spectrometer was acquired for use in the measurement of National Institute of Standards and Technology neutron fields. The spectrometer included options for the measurement of low and high energy neutrons, for a total measurement range from 0 ...
Heimbach, Craig
core   +1 more source

A mathematical framework to correct for compositionality in microbiome data sets

open access: yesApplied and Environmental Microbiology
The increasing use of metagenomic sequencing (MGS) for microbiome analysis has significantly advanced our understanding of microbial communities and their roles in various biological processes, including human health, environmental cycling, and disease ...
Samuel P. Forry   +5 more
doaj   +1 more source

The Idiap Speaker Recognition Evaluation System at NIST SRE 2012 [PDF]

open access: yes
In this paper, we present the Idiap Research Institute submission to the 2012 NIST Speaker Recognition Evaluation. Our system is based on the Inter-Session Variability (ISV) modelling technique.
Marcel, Sébastien   +2 more
core  

Data-driven simulations for training AI-based segmentation of neutron images

open access: yesScientific Reports
Neutron interferometry uniquely combines neutron imaging and scattering methods to enable characterization of multiple length scales from 1 nm to 10 µm.
Pushkar S. Sathe   +13 more
doaj   +1 more source

A close-up view of coarse limestone from New Bern, North Carolina, set in the NIST stone wall [PDF]

open access: yes, 2017
The NIST stone wall was built using 2,352 stones from 47 US states and 320 from 16 foreign countries. The wall is approximately 12 m long, 4 m high, 0.6 m thick at the bottom, and 0.3 m at the top. The aim of the wall construction was to study the aging
National Institute of Standards and Technology and Technology
core  

Uncertainty in NIST force measurements

open access: yesJournal of Research of the National Institute of Standards and Technology, 2005
This paper focuses upon the uncertainty of force calibration measurements at the National Institute of Standards and Technology (NIST). The uncertainty of the realization of force for the national deadweight force standards at NIST is discussed, as well as the uncertainties associated with NIST's voltage-ratio measuring instruments and with the ...
openaire   +2 more sources

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