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Displaying 3626 - 3650 of 4212
Wyatt N. Vreeland, Renee R. Hood, Don L. DeVoe, Francisco J. Atencia, Donna M. Omiatek
A novel microscale device has been developed to enable the one-step continuous flow assembly of monodisperse nanoscale liposomes using three-dimensional microfluidic hydrodynamic focusing (3D-MHF) in a radially symmetric capillary array. The 3D-MHF flow
Resistance thermometers using wires of rhodium with 0.5 mol % of iron (Rh-Fe thermometers or RIRTs) were first made by H Tinsley & Co in 1969 for applications at low temperatures, below the range where standard platinum resistance thermometers can be used
Albert Davydov, Geetha G. Aluri, Abhishek Motayed, Vladimir P. Oleshko, Kristine A. Bertness, Mulpuri V. Rao
A highly sensitive and selective detection of traces of nitro-aromatic explosive compounds by functionalizing gallium nitride (GaN) nanowires with anatase phase titania (titanium dioxide, TiO2) nanoclusters is demonstrated. The ultraviolet light photo
A feasibility study was performed to evaluate a novel method of accurately fatigue cracking steel plates to generate fatigue proposed fatigue crack reference standards. Fatigue cracks were introduced into low carbon steel reference plates in which the
The recent emergence of manufactured nanoparticles (NPs) as materials that can be released into the environment and lead to exposure in organisms has accelerated the need to determine their toxicity. However, techniques for measuring toxicity of NPs
Thiago Cobu, Robert F. Berg, John D. Wright, Michael R. Moldover
We calibrated three models of commercially-manufactured, laminar flow meters (LFMs) with nitrogen at four pressures (100 kPa, 200 kPa, 300 kPa, and 400 kPa) over a 10:1 flow range using NISTs primary flow standards and a physical model. Without additional
Douglas C. Meier, Baranidharan Raman, Stephen Semancik
Complex analytical problems, such as detecting trace quantities of hazardous chemicals in ambient environments composed of varying levels of humidity and vapors of benign products, require solutions that most effectively extract the relevant information
Cynthia H. Reed, Steven J. Nabinger, Andrew K. Persily
Volatile organic compounds (VOCs) emitted by building materials and products have been shown to significantly impact human health and comfort. As a result, the market for low emitting building materials and products is growing rapidly. However, existing
In earlier papers, NIST proposed a standard illumination source and optical filter targets to with which to assess the state-of-the-art of display measurement. The Gamut Assessment Standard (GAS) was present the display metrologist with a set of