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Search Publications

NIST Authors in Bold

Displaying 12676 - 12700 of 13226

Roles of Nanofiber Scaffold Structure and Chemistry in Directing Human Bone Marrow Stromal Cell Response

August 22, 2016
Author(s)
Sumona Sarkar, Bryan A. Baker, Desu Chen, Patrick S. Pine, Jennifer H. McDaniel, Marc L. Salit, Wolfgang Losert, Carl G. Simon Jr., Joy P. Dunkers
… Nanofiber technology has emerged as a promising tool to recapitulate … cell-material interactions are still largely undetermined. In this study we have systematically investigated the role of both nanofiber structure and chemistry in directing the response of human bone marrow stromal cells …

Chapter 1: Introduction to low temperatures materials and mechanisms

August 19, 2016
Author(s)
Ray Radebaugh
… at cold temperatures is essential to many processes in numerous fields of science and engineering including … and medicine. Increasingly, there is a growing interest in technologies that are applicable at low temperatures for planetary exploration of bodies in the solar system that are extremely cold. These include …

Librarians and Scientists Partner to Address Data Management: Taking Collaboration to the Next Level

June 1, 2016
Author(s)
Andrea M. Medina-Smith, Barbara P. Silcox, Kimberly A. Tryka, Robert J. Hanisch
… Office (ISO) at the National Institute of Standards and Technology (NIST) provides services to NIST scientific and … high level of service, and developing new services to stay in front of NIST researcher needs. Through a concerted, … ISO positioned itself to become an equal partner with ODI in the exploration of solutions to data management issues, …

Particle size-dependent environmental release of semiconductor nanocrystals from free-standing polymer nanocomposite films

May 31, 2016
Author(s)
Li Piin Sung, Karthik V. Pillai, Patrick Gray, Reiner Bleher, Timothy V. Duncan
… of factors, such as particle size, on release phenomena. In this study we employed semiconductor nanoparticles … exposure time, and particle size all play pivotal roles in release kinetics, and the primary mechanism for release is … of the potential exposure to nanoparticles from PNCs in consumer products. …

Ion trap mobility spectrometry nuisance alarm threshold analysis for illicit narcotics based on environmental background and a ROC-curve approach

May 18, 2016
Author(s)
Thomas Forbes, Marcela N. Najarro
… vehicles at the National Institute of Standards and Technology (NIST), Gaithersburg, MD campus. Over 20000 … < 10% FPR, with improvements to both for MDMA and cocaine in the elevated temperature/increased sampling mode. Detection limits in the tens of nanograms with poor specificity (FPR 20%) were …

Quantitative interpretation of molecular dynamics simulations for X-ray photoelectron spectroscopy of aqueous solutions

April 19, 2016
Author(s)
Cedric J. Powell, Giorgia Olivieri, Krista Parry, Douglas Tobias, Matthew Brown
… with complementary molecular dynamics (MD) simulations in an attempt to provide a complete description of the liquid … technique that averages signals from multiple layers in a solution even at the lowest photoelectron kinetic … Here we use the National Institute of Standards and Technology database for the Simulation of Electron Spectra …

Reclamation-NIST Exploratory Research Symposium Summary Report

April 6, 2016
Author(s)
Nicholas Barbosa, Jessica Torrey
… 2015, at the Reclamation Denver Federal Center facility in Lakewood, CO, and the NIST facility in Boulder, CO. Staff from the Bureau of Reclamation and the National Institute of Standards and Technology (NIST) participated, as well as guest …

Optical Tracking of Nanoscale Particles in Microscale Environments

March 10, 2016
Author(s)
Pramod Mathai, James A. Liddle, Samuel M. Stavis
… access to this information through measurements of light in the far field from nanoparticles. Such measurements necessarily involve trade-offs in tracking capabilities. This article presents a measurement … which apply across a broad spectrum of science and technology. In the context of the framework and review of …

CONTAM RESULTS EXPORT TOOL

March 9, 2016
Author(s)
Brian Polidoro, Lisa Ng, William Stuart Dols
… developed by the National Institute of Standards and Technology (NIST). Since CONTAM simulation files are binary … but adds the ability to export infiltration rates for use in EnergyPlus, a building energy simulation program. This … EnergyPlus: zone-specific air change rates:" are described in a separate document by Polidoro et al. (2015). The results …

Economics of Community Disaster Resilience Workshop Proceedings

March 1, 2016
Author(s)
Bilal Ayyub, Robert E. Chapman, Gearald Galloway, Richard Wright
… effort launched by the National Institute of Standards and Technology (NIST) to develop, organize, and convene a … the use of economics for system sustainment and guide NIST in developing a portfolio of programs that are focused on … used to develop a snapshot of the current state-of-the-art in that topic area, as well as identify gaps and research …

Methodology to Analyze Wind Pressure Data on Components and Cladding of Low-Rise Buildings

December 29, 2015
Author(s)
Dat Duthinh, Joseph A. Main
… buildings using the National Institute of Standards and Technology-University of Western Ontario (NIST-UWO) database. … induced on a structure by the wind field are random both in time and space. For design purposes, the pressure on any … by summing up the product of pressure time series measured in wind tunnel tests at adjoining pressure taps by their …

Observation of Iron Spin-States using Tabletop X-ray Emission Spectroscopy and Microcalorimeter Sensors

December 2, 2015
Author(s)
Young Il Joe, Galen C. O'Neil, Luis Miaja Avila, Joseph W. Fowler, Kevin L. Silverman, Daniel S. Swetz, Joel N. Ullom, Ralph Jimenez
… samples, time-resolved measurements, and in-laboratory XES where the exciting x-ray fluxes available … arrays of cryogenic microcalorimeters will be useful in photon- starved XES scenarios, we demonstrate that these … and that anticipated improvements in source and detector technology will enable in-laboratory, time-resolved XES on a …

Sequence variation of 22 autosomal STR loci detected by next generation sequencing

December 1, 2015
Author(s)
Katherine Gettings, Kevin M. Kiesler, Seth A. Faith, Elizabeth Montano, Christine H. Baker, Brian A. Young, Richard A. Guerreri, Peter Vallone
… PCR fragment analysis. Sanger sequencing has been used in research laboratories to further characterize STR loci, … forensic use due to the laborious nature of the procedure in general and additional steps required to separate heterozygous alleles. Recent advances in library preparation methods enable high-throughput next …

A Case Study of a Community Affected by the Waldo Fire Event Timeline and Defensive Actions

November 9, 2015
Author(s)
Alexander Maranghides, Derek McNamara, Robert Vihnanek, Joseph Restaino, Carrie Leland
… The National Institute of Standards and Technology (NIST) has a suite of research projects addressing risk reduction in Wildland Urban Interface (WUI) communities. This case … study is focused on the Mountain Shadows Community (MSC) in Colorado Springs. There were 1455 primary structures …

Dimensional Reduction of Duplex DNA Under Nanofluidic Slit Confinement

August 19, 2015
Author(s)
Luis Fernando Vargas Lara, Jack F. Douglas, Samuel M. Stavis, Elizabeth A. Strychalski, Jon C. Geist, Brian J. Nablo
… There has been much recent interest in the dimensional properties of duplex DNA under nanoscale … conditions as a problem of fundamental interest in both technological and biological fields. This has led to … DNA, a clear and reproducible description of changes in the radius of gyration Rg of DNA under strong confinement …

Development of an Ultra-Pure, Carrier-Free 209Po Solution Standard

July 23, 2015
Author(s)
Ronald Colle, Ryan P. Fitzgerald, Lizbeth Laureano-Perez
… be disseminated by the National Institute of Standards and Technology (NIST) as Standard Reference Material SRM 4326a, … a mean mass of (5.169  0.003) g of a solution of polonium in nominal 2.0 mol▪L-1 HCl (having a solution density of (1.032  0.002) g▪ mL-1 at 20 C) that are contained in 5-mL, flame-sealed, borosilicate glass ampoules. They are …

Impact of recent change in NIST standard for 18F on the relative response of 68Ge-based mock syringe dose calibrator standards

July 16, 2015
Author(s)
Brian E. Zimmerman, Denis E. Bergeron, Jeffrey T. Cessna
… As a result of a recent change in the National Institute of Standards and Technology (NIST) activity standard for 18F, we have … ratios for a 68Ge solid epoxy mock syringe source used in activity calibrators as a long-lived substitute for 18F. … Impact of recent change in NIST standard for 18F on the relative response of …

Dedicated NOAA/JPSS VIIRS Ocean Color Calibration/Validation Cruise

June 12, 2015
Author(s)
Bettye C. Johnson, Michael Ondrusek, Eric Stengel, Veronica P. Lance, Menghua Wang, Kenneth Voss, Giuseppe Zibordi, Marko Talone, Zhongping Lee, Jianwei Wei, Junfang Lin, Chuanmin Hu, David English, Charles Kovach, Jennifer Cannizzaro, Alex Gilerson, Sam Ahmed, Ahmed El-Habashi, Robert Foster, Robert Arnone, Ryan Vandermeulen, Sherwin Ladner, Wesley Goode, Joaquim I. Goes, Helga de Rosario Gomes, Alex Chekalyuk, Kali McKee, Scott Freeman, Aimee Neeley, Amir Ibrahim
… “end-to-end” production of ocean color satellite products. In situ validation of satellite data is essential to … by the international ocean color remote-sensing community. In November 2014, a 10-day cruise was conducted aboard the … University; the National Institute of Standards and Technology, NASA/Goddard Space Flight Center and the Joint …

Modeling Particle Resuspension for Estimating Exposure to Bacillus Spores

June 11, 2015
Author(s)
William S. Dols, Andrew K. Persily
… A key challenge in assessing the risks of low level contaminations following … EPA’s National Homeland Security Research Center (NHSRC), in collaboration with several other federal agencies, … before and after decontamination. The data collected in this study provide a unique resource to support the …

New x-ray measurements shed light on discrepancy between experiment and QED

December 15, 2014
Author(s)
Lawrence T. Hudson, C T. Chantler, A.T. Payne, M N. Kinnane, John D. Gillaspy, L F. Smale, Albert Henins, J A. Kimpton, E Takacs
… 15 parts-per-million (ppm) experiment on muonic hydrogen, in which the lepton orbits the nucleus at a distance much less than in conventional atoms, found a major discrepancy with the … of light with matter, which forms the basis for all high-technology applications. …

In-situ Temperature Calibration Capability for Dimensional Metrology

December 1, 2014
Author(s)
Prem K. Rachakonda, Daniel S. Sawyer, Balasubramanian Muralikrishnan, Christopher J. Blackburn, Craig M. Shakarji, Gregory F. Strouse, Steven D. Phillips
… Group (DMG) at the National Institute of Standards and Technology (NIST) has the capability to perform large range dimensional measurements in a facility, called the Tape Tunnel. The Tape Tunnel is … reference interferometer. The relative uncertainty (Uk=2) in the displacement measurement is 2.4×10-7 [ ]. A major …

NIST Framework and Roadmap for Smart Grid Interoperability Standards, Release 3.0

October 1, 2014
Author(s)
Chris Greer, David A. Wollman, Dean Prochaska, Paul A. Boynton, Jeffrey A. Mazer, Cuong Nguyen, Gerald FitzPatrick, Thomas L. Nelson, Galen H. Koepke, Allen R. Hefner Jr., Victoria Yan Pillitteri, Tanya L. Brewer, Nada T. Golmie, David H. Su, Allan C. Eustis, David Holmberg, Steven T. Bushby
… grid devices and systems.'' To meet these statutory goals, in January 2010, NIST published the NIST Framework and … Interoperability Standards, Release 1.0 (Release 1.0), and in February 2012, NIST published the NIST Framework and … development and smart grid-related measurement science and technology, including the evolving and continuing NIST …

3 He Spin Filter Based Polarized Neutron Capability at the NIST Center for Neutron Research

July 24, 2014
Author(s)
WangChun Chen, Thomas R. Gentile, Ross W. Erwin, Shannon Watson, Qiang NMN Ye, Kathryn L. Krycka, Brian B. Maranville
… program for polarized neutron scattering was launched in 2006 as part of the National Institute of Standards and Technology (NIST) Center for Neutron Research (NCNR) … TAS, NG-3 SANS, and MAGIK reflectometer have already been in the user program for routine polarized beam experiments. …
Displaying 12676 - 12700 of 13226
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