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Search Publications

NIST Authors in Bold

Displaying 12901 - 12925 of 13227

Evaluating Digital PCR as a primary method for the quantification of human genomic DNA: Accessible amplifiable targets

January 11, 2016
Author(s)
Margaret C. Kline, Erica L. Romsos, David L. Duewer
… can be accurately calibrated with solutions of DNA in aqueous buffer. Since they do not require external … dPCR system that tracks the progress of PCR amplification in multiple reaction chambers. We conclude that dPCR does not estimate the ab-solute number of PCR targets in a given volume but rather the number of accessible and …

Compositional Analysis of Biomass Reference Materials: Results from an Interlaboratory Study

October 29, 2015
Author(s)
David W. Templeton, Edward J. Wolfrum, Katherine E. Sharpless, James H. Yen
… Four biomass reference materials (RMs) were prepared in the early 1990s for use in evaluating analytical methods for the determination of … agricultural residues. National Institute of Standards and Technology (NIST) RM 8491 Sugarcane Bagasse (Saccharum spp. …

Methods of Photoelectrode Characterization with High Spatial and Temporal Resolution

August 17, 2015
Author(s)
Thomas P. Moffat
… viable photoelectrochemical (PEC) water-splitting technology. A key challenge is the heterogeneous nature of … materials, which often possess spatial variation in their crystal structure, morphology, and/or composition at … dimensions and on fast time scales. A major focus is on in situ scanning-probe measurement (SPM) techniques that …

Technical Basis for User Interface Design of Health IT

August 17, 2015
Author(s)
Michael E. Wiklund, Jonathan Kendler, Limor Hochberg, Matthew B. Weinger
… and establish a basic level of interaction design quality in an EHR, (4) Summaries of EHR development best practices as … ultimate goal of the activities and principles described in this document is to provide EHR stakeholders with better … a Usability Framework for Healthcare Information Technology."** …

Fractionation and characterization of high aspect ratio gold nanorods using asymmetric-flow field flow fractionation and single particle inductively coupled plasma mass spectrometry

July 14, 2015
Author(s)
Thao M. Nguyen, Jingyu Liu, Vincent A. Hackley
… Development of methods for the in situ fractionation and characterization of high aspect … of the longitudinal surface plasmon resonance band. Used in concert, asymmetric-flow field flow fractionation (A4F) … from the same fractions. Of particular significance, and in contrast to our previously reported observations on the …

Simulated versus Measured Energy Performance of the NIST Net Zero Energy Residential Test Facility Design

March 30, 2015
Author(s)
Joshua D. Kneifel, William V. Payne, Tania Ullah, Lisa C. Ng
… The National Institute of Standards and Technology (NIST) received funding through the American … residential design can “look and feel” like a typical home in the Gaithersburg area. The demonstration phase of the … deviates from the simulated performance of the house in its design state. These variations may be due to incorrect …

Investigating the Process of Surface Degradation and Nanoparticle Release of a Commercial Nanosilica / Polyurethane Coating Under UV Exposure

March 11, 2015
Author(s)
Deborah S. Jacobs, Yu L. Cheng, Savelas A. Rabb, Peter J. Krommenhoek, Lee L. Yu, Tinh Nguyen, Li Piin Sung
… many outdoor applications. However, because polymers used in coatings are susceptible to degradation by weathering, nanoparticles in a coating may be released into the environment during the … Recent research at the National Institute of Standards and Technology (NIST) has shown that the matrix in a polymer …

Quantification of Cells with Specific Phenotypes II: Determination of CD4 Expression Level on Lyophilized Human PBMC Surface Labeled with Anti-CD4 FITC Antibody

March 10, 2015
Author(s)
Lili Wang, Adolfas K. Gaigalas
… Institute of Biological Standards and Control (NIBSC) in South Mimms (UK), PTB (Physikalisch-Technische … Germany) and NIST (National Institute of Standards and Technology, USA). The objective of CCQM pilot study was to demonstrate participant capability in flow cytometric measurements of CD4+ cell concentration …

An approach for identification and determination of arsenic species in the extract of kelp

March 3, 2015
Author(s)
Lee L. Yu, Rolf L. Zeisler, Rabia Oflaz, Wei Chao, Junting Tong, Haixia Bao, Jun Wang
… The National Institute of Standards and Technology is developing a kelp standard reference material (SRM) in support of dietary supplement measurements. Edible … of mg/kg arsenic. The speciation information of arsenic in the seaweed should be provided because the total arsenic …

Natural Scene Statistics in Infrared Images

December 12, 2014
Author(s)
Nicholas G. Paulter Jr., Todd R. Goodall, Alan C. Bovik
… relevant tools that have been highly successful in image quality analysis of visible light images. These NSS capture statistical regularities in the physical world and thus can be applicable to Long Wave … task efficacy. The National Institute for Standards and Technology (NIST) characterized human Targeting Task …

Development of Laboratory Test Methods to Replace the Simulated High-Temperature Fluidity Test

August 29, 2014
Author(s)
Chiara F. Ferraris, H. R. R. Hamilton, Alexander Piper
… grout fluidity (HTGF) test. The HTGF test was employed in the past by FDOT to qualify post-tensioning (PT) grouts for use in post-tensioned bridge construction. The HTGF test, … (UMD) and National Institute of Standards and Technology (NIST) to provide a comparison of the viscosity …

Characterization of Buried Structure in Directed Self Assembly Block Copolymers

July 30, 2014
Author(s)
Daniel F. Sunday, Matthew R. Hammond, Chengqing C. Wang, Wen-Li Wu, Dean M. DeLongchamp, Regis J. Kline, Melia Tjio, Joy Cheng, Jed W. Pitera
… sub-20 nm features. Continuing the development of this technology will require an improved understanding of the … we are able to demonstrate the dramatic improvement in scattering obtained through the use of resonant soft … allowed us to reconstruct the complex buried features in DSA BCP films. We studied a series of DSA BCP films with …

Multiplexed LC-MS/MS Assay for Urine Albumin

July 24, 2014
Author(s)
Ashley B. Green, David M. Bunk, Karen W. Phinney
… Measurement Division National Institute of Standards and Technology, Gaithersburg, MD ABSTRACT Urinary excretion of … monitoring (MRM) to quantify full-length urinary albumin in a targeted mass spectrometric-based approach. The … which permits the absolute quantitation of albumin in urine. A total of 11 peptides with two transitions per …

1588 Power Profile Test Plan

July 7, 2014
Author(s)
Carol Perkins, Jeff Laird, Ryan McEachern, Bob Noseworthy, Julien M. Amelot, YaShian Li-Baboud, Kevin G. Brady
… The National Institute of Standards and Technology (NIST) is an agency of the U.S. Department of … adoption of IEEE Standard C37.238 for the use of IEEE 1588 in Power Systems Applications in support of the Smart Grid. The University of New Hampshire …

Quantification of Methane Emissions From Street Level Data

July 2, 2014
Author(s)
Kuldeep R. Prasad
… R. Whetstone(1) (1) National Institute of Standards and Technology, Gaithersburg, MD. (2) Department of Civil and … of Chemistry, Purdue University, West Lafayette, IN. (4) Department of Meteorology, The Pennsylvania State … is an active area of research. This interest is fueled, in part, by recent measurements indicating that urban …

Noble Gas Excimer Scintillation Following Neutron Capture in Boron Thin Films

April 11, 2014
Author(s)
Alan K. Thompson, Jacob McComb, Charles W. Clark, Michael A. Coplan, Mohamad Al-Sheikhly, Robert E. Vest
… (FUV) scintillation signals have been measured in heavy noble gases (argon, krypton, xenon) following boron-neutron capture (10B(n,α)7Li) in 10B thin films. The observed scintillation yields are … characterized at the National Institute of Standards and Technology. Monte Carlo modeling of the reaction cell …

International Comparison of a Hydrocarbon Gas Standard at the Picomol per Mol Level

February 6, 2014
Author(s)
George C. Rhoderick, David L. Duewer, Eric Apel, Annarita Baldan, Bradley Hall, Alice Harling, Detlev Helmig, Gwi S. Heo, Jacques Hueber, Mi E. Kim, Yong D. Kim, Benjamin Miller, Stephen Montzka, Daniel Reimer
… recognize the diverse influences of hydrocarbons in the atmosphere, including roles in particulates and ozone formation. Measurements of key non … February of 2008, the National Institute of Standards and Technology (NIST) developed and reported on pmol/mol …

CPTAC Studies 1 and 5: dissecting variability in multi-site LC-MS/MS proteomics through quality metrics and robust hierarchical multivariate statistics

February 4, 2014
Author(s)
Stephen E. Stein, David M. Bunk, Xia Wang, Matthew Chambers, Lorenzo J. Vega-Montoto, David L. Tabb
… of variability. Study 1 for the Clinical Proteomics Technology Assessment for Cancer (CPTAC), which analyzed … at each of two time points among 23 mass spectrometers in nine laboratories, provided the data to demonstrate this … factor analysis. Dissimilarity metrics revealed outliers in performance, and a nested ANOVA model revealed the extent …

Liquid Flow Meter Calibrations with the 0.1 L/s and 2.5 L/s Piston Provers

January 15, 2014
Author(s)
Jodie G. Pope, John D. Wright, Aaron N. Johnson, Christopher J. Crowley
… operated by the National Institute of Standards and Technology (NIST) Fluid Metrology Group to provide flow meter … prover technique where fluid is driven by a pump that in turn moves the piston. The 2.5 L/s standard uses a … uncertainties correspond to a 95 % confidence level). In this document, we provide an overview of the liquid flow …

Quantification of Methane Source Locations and Emissions

December 13, 2013
Author(s)
Kuldeep R. Prasad
… R. Whetstone(1) (1) National Institute of Standards and Technology, Gaithersburg, MD. (2) Department of Civil … of Chemistry, Purdue University, West Lafayette, IN. (4) Department of Meteorology, The Pennsylvania State … is an actively debated topic. This interest is fueled, in part, by recent measurements indicating that urban …

Stair evacuation of older adults and people with mobility impairments

October 31, 2013
Author(s)
Erica D. Kuligowski, Richard D. Peacock, Emily Wiess, Bryan Hoskins
… Laboratory at the National Institute of Standards and Technology (NIST) accumulated fire drill data from fourteen … other data collected on mobility impaired individuals. In the current study, NIST observed overall average speeds … the speeds of disabled and elderly people found in earlier studies. These data provide an adequate …

Characterizing the Response of Direct-Reading Particulate Detectors for the Fire Overhaul Environment

June 21, 2013
Author(s)
Rodney Bryant, Paul Greenberg
… information exists on what respiratory threats are present in the fire overhaul environment. Hand-held direct-reading … applications. Therefore, it may be possible to adapt this technology to meet the needs of the firefighter. The goal of … when exposed to the types of particulates anticipated in the fire overhaul environment, and to transfer the …

Temperature Measurement and Optical Path-length Bias Improvement Modifications to NIST Ozone Reference Standards

May 1, 2013
Author(s)
James E. Norris, Steven J. Choquette, Franklin R. Guenther, Joele Viallon, Philippe Moussay, Robert Wielgosz
… Ambient ozone measurements in the U.S. and many other countries are traceable to a National Institute of Standards and Technology Standard Reference Photometer (NIST SRP). The NIST … SRP serves as the highest level ozone reference standard in the U.S. with units located at NIST, and many U.S. EPA …
Displaying 12901 - 12925 of 13227
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