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Search Publications

NIST Authors in Bold

Displaying 18176 - 18200 of 73697

Interactions of Microorganisms with Polymer Nanocomposites Containing Different Loadings of Oxidized Single and Multi-walled Carbon Nanotubes

March 27, 2015
Author(s)
David G. Goodwin , Kris M. Marsh, Iruhany B. Sosa, Julianne B. Payne, Justin Gorham, Edward J. Bouwer, D H. Fairbrother
The environmental fate and impact of polymer nanocomposites (PNCs) containing carbon nanotubes (CNTs) will depend upon their interactions with microorganisms, with implications for the antimicrobial properties and long term persistence of PNCs. Using

A Fundamental Equation of State for 1,1,1,3,3-Pentafluoropropane (R-245fa)

March 26, 2015
Author(s)
Ryo Akasaka, Yong Zhou, Eric Lemmon
A new fundamental equation of state explicit in the Helmholtz energy is presented for 1,1,1,3,3 pentafluoropropane (R 245fa), based on recent experimental data for the vapor pressures, densities, and vapor sound speeds. The functional form now uses

Design Challenges of the NIST Net Zero Energy Residential Test Facility

March 26, 2015
Author(s)
Betsy Pettit, Cathy Gates, Arthur H. Fanney, William M. Healy
Homeowners and builders have increasingly strived to build low energy use and environmentally friendly homes. As materials and equipment have improved, energy reduction as a goal has increasingly been replaced with the goal of net-zero energy use. But the

Draining Test Measures and Provers

March 26, 2015
Author(s)
Gloria D. Lee
This article reviews the correct procedures for draining 5-gallon test measures and truck mounted provers, frequently asked questions concerning the test procedures for draining test measures and provers, and provides information on additional training

TRECVID 2014 -- An Overview of the Goals, Tasks, Data, Evaluation Mechanisms, and Metrics

March 26, 2015
Author(s)
Paul D. Over, Jonathan G. Fiscus, Gregory A. Sanders, David M. Joy, Martial Michel, George Awad, Alan Smeaton, Wessel Kraaij, Georges Quenot
The TREC Video Retrieval Evaluation (TRECVID) 2014 was a TREC-style video analysis and retrieval evaluation, the goal of which remains to promote progress in content-based exploitation of digital video via open, metrics-based evaluation. Over the last

An improved result on the measurement of the Avogadro constant from a 28Si crystal

March 25, 2015
Author(s)
Yasushi Azuma, G Barat, Guido Bartl, Horst Bettin, Michael Borys, I Busch, L Cibik, G D' Agostino, K Fujii, H Fujimoto, A Hioki, Michael Krumrey, U Kuetgens, N Kuramoto, Giovanni Mana, E Massa, R Meess, Shigeki Mizushima, T Narukawa, Arnold Nicolaus, Axel Pramann, Savelas A. Rabb, Olaf Rienitz, C Sasso, M Stock, Robert D. Vocke Jr., A Waseda, S Zakel
In this paper new results of an international research project aimed at determining the Avogadro constant by counting the atoms in an isotopically enriched silicon crystal are reported. The 28Si spheres were decontaminated and reworked in order to produce

Early observations of macroscopic quantum jumps in single atoms

March 25, 2015
Author(s)
Wayne M. Itano, James C. Bergquist, David J. Wineland
The observation of intermittent fluorescence of a single atomic ion, a phenomenon better known as 'macroscopic quantum jumps,' was an important early scientific application of the three-dimensional rf quadrupole (Paul) trap. The prediction of the

Interactive Visual Computing Laboratory Research

March 25, 2015
Author(s)
Jian Chen, Judith E. Terrill, Henan Zhao, Guohao Zhang, Keqin Wu, Alexander Garbrino, Yongnan Zhu
We present three ongoing research projects (funded by NST and NIST) on behalf of the Interactive Visual Computing Lab at the University of Maryland Baltimore County. This lab exhibition presentation summarizes the design challenges we are currently

"Weighing" a Gas With Microwave and Acoustic Resonances

March 24, 2015
Author(s)
Keith A. Gillis, James B. Mehl, James W. Schmidt, Michael R. Moldover
With calibrations of large flow meters in mind, we established the feasibility of determining the mass Mof argon gas contained within a 0.3 m 3 commercially manufactured pressure vessel ("tank") with a relative uncertainty of u r(M) = 0.0015 at 0.6 MPa by

Behavior of structural steel moment connections under fire loading

March 24, 2015
Author(s)
Mina S. Seif, Joseph Main, Fahim H. Sadek
Performance-based methodologies to evaluate the fire performance of structures are needed to move beyond the prescriptive procedures presently in use. Analytical methods are needed for simulating the performance of structural systems, including connections

Model colloid system for interfacial sorption kinetics

March 24, 2015
Author(s)
Paul NMN Salipante, Steven D Hudson
Adsorption kinetics of nanometer scale molecules, such as proteins at interfaces, is usually determined through measurements of surface coverage. Their small size limits the ability to directly observe individual molecule behavior. Hence, the effect of

Update on the MiniCLEAN Dark Matter Experiment

March 24, 2015
Author(s)
Kevin J. Coakley, K. Rielage, M. Akashi-Ronquest, M. Bodmer, R. Bourque, B. Buck, A. Butcher, T. Caldwell, Y. Chen, F. A. Duncan, E. Flores, J. A. Formaggio, D. Glaster, F. Giuliani, M. Gold, E. Grace, J. Griego, N. Guerrero, V. Guiseppe, R. Henning, A. Hime, S. Jaditz, C. Kachulis, E. Kearns, J. Kelsey, J. R. Klein, A. Latorre, I. Lawson, O. Li, P. Liimatainen, S. Linden, F. Lopez, K. McFarlane, D. N. McKinsey, S. MacMullin, A. Mastbaum, D.-M. Mei, J. Monroe, J. A. Nikkel, J. Oertel, G. D. Orebi Gann, K. Palladino, G. Perumpilly, L. Rodriguez, R. Schnee, S. Seibert, J. Walding, B. Wang, J. Wang, C. Zhang
The direct search for dark matter is entering a period of increased sensitivity to the hypothetical Weakly Interacting Massive Particle (WIMP). One such technology that is being examined is a scintillationonly noble liquid experiment, MiniCLEAN. MiniCLEAN

Electromagnetic Field Test Structure Chip for Back End of the Line Metrology

March 23, 2015
Author(s)
Lin You, Jungjoon Ahn, Emily Hitz, Jonathon Michelson, Yaw S. Obeng, Joseph J. Kopanski
A test chip to produce known and controllable gradients of surface potential and magnetic field at the chip surface and suitable for imaging with various types of scanning probe microscopes is presented. The purpose of the test chip is to evaluate various

The Testing Program at NIST on Fibers Used in Soft Body Armor Applications

March 21, 2015
Author(s)
Walter G. McDonough, Amanda L. Forster, Jae Hyun Kim, Nathanael A. Heckert, Joy P. Dunkers, Scott A. Wight, Gale A. Holmes
The goal of this paper and presentation is to give an update of the research effort to date being conducted at the National Institute of Standards and Technology (NIST) on polymeric fibers used in soft body armor with a special emphasis on new fibers under
Displaying 18176 - 18200 of 73697
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