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Search Publications

NIST Authors in Bold

Displaying 13051 - 13075 of 13227

Local Distribution and Calibration of Timing Signals at NIST

January 31, 2017
Author(s)
Joshua J. Savory, Liz C. Forero, Kristopher Maurer, Stefania Romisch
… The National Institute of Standards and Technology (NIST) timescale produces a real-time realization of UTC(NIST) in the form of a pulse-per-second (PPS) time signal and a 5 … point. Hardware constraints, spatial constraints and in some cases simply convenience require that the physical …

Energy and Indoor Air Quality Benchmarking of the NIST Net-Zero Energy Residential Test Facility (NZERTF)

August 24, 2016
Author(s)
Tania Ullah, Dustin Poppendieck, William M. Healy, Arthur H. Fanney, Kevin Y. Teichman
… The National Institute of Standards and Technology (NIST) designed and built a residence that could … to the EUIs of existing single-family detached homes in the Mixed-Humid climate zone and the entire United States. … score (10), and the HUD Energy Benchmark Tool score (97). In contrast, indoor air quality (IAQ) benchmarking is …

High-temperature material constitutive models for structural-fire analysis

June 7, 2016
Author(s)
Chao Zhang, Lisa Choe, John L. Gross
… developed by the National Institute of Standards and Technology (NIST) [1], the Eurocode 3 model [2] and the model developed by Lie [3]. The testbed used in the analyses included twenty steel column tests and two restrained steel beam tests reported in the technical literature. The selected column tests …

Understanding and Control of Bipolar Doping in Copper Nitride

May 5, 2016
Author(s)
Angela N. Fioretti, Craig P. Schwartz, John Vinson, Dennis Nordlund, David Prendergast, Adele C. Tamboli, Filip Tuomisto, Stephan Lany, Eric S. Toberer, Andriy Zakutayev
… are desirable for diode-based applications and transistor technology. Copper nitride (Cu3N) is a metastable … and better control of the mechanism behind this behavior in Cu3N is currently lacking in the literature. In this work, we demonstrate both … Understanding and Control of Bipolar Doping in Copper Nitride …

The Influence of Realism on Congestion in Network Simulations

January 8, 2016
Author(s)
Kevin L. Mills, Christopher E. Dabrowski
… used simulation to investigate the spread of congestion in networks. These researchers often find that congestion can … little resemblance to networks deployed based on modern technology. We explore these questions by examining the influence of realism on the spread of congestion in network simulations. We begin with an abstract network …

MEASURING PRESSURE AND VACUUM WITH LIGHT: A NEW PHOTONIC, QUANTUM-BASED, PRESSURE STANDARD

September 3, 2015
Author(s)
Jay H. Hendricks, Jacob E. Ricker, Jack A. Stone Jr., Patrick F. Egan, Gregory E. Scace, Gregory F. Strouse, Douglas A. Olson, Donavon Gerty
… light travels at a slower speed and has shorter wavelength in gas than it does in vacuum. A photonic-based pressure standard represents a … standards. The National Institute of Standards and Technology (NIST) has now built a working prototype of a … XXI IMEKO World Congress “Measurement in Research and Industry” …

Fetal magnetocardiography measurements with a multichannel microfabricated atomic magnetometer array

June 3, 2015
Author(s)
Svenja A. Knappe, Orang Alem, Tilmann H. Sander, Rahul R. Mhaskar, John LeBlanc, Hari Eswaran, Uwe Steinhoff, Yoshio Okada, John E. Kitching, Lutz Trahms
… Following the rapid progress in the development of atomic magnetometer technology for the measurement of magnetic fields in the femtotesla range, a successful assembly of individual … Physics in Medicine and Biology …

Internal Magnetic Structure of Nanoparticles Dominates Time-Dependent Relaxation Processes in a Magnetic Field

June 2, 2015
Author(s)
Cindi L. Dennis, Kathryn L. Krycka, Julie Borchers, Ryan D. Desautels, Johan van Lierop, Natalie F. Huls, Andrew J. Jackson, Cordula Gruettner, Robert Ivkov
… such as magnetic nanoparticles, have applications in many disciplines of science and technology because these magnets can exhibit hysteresis and loss power when exposed to AC magnetic fields. In particular, the responsiveness of magnetic nanoparticles … Dominates Time-Dependent Relaxation Processes in a Magnetic Field …

Impact of More Precise Electricity Price Data on Estimated Energy Costs from Energy Standard Adoption for Buildings

December 19, 2014
Author(s)
Joshua D. Kneifel, David T. Butry
… Energy efficiency requirements in current building energy codes vary across states, and many … Laboratory (EL) at the National Institute of Standards and Technology (NIST) has developed the Building Industry … performance for eleven commercial building prototypes in each of 228 cities across the U.S. designed to different …

Potential Hazard Due to Induced Radioactivity Secondary to Radiotherapy: The Report of AAPM Task Group 136

December 1, 2014
Author(s)
Fred B. Bateman, Bruce R. Thomadsen, Ravinder Nath, Jonathan Farr, Cal Glisson, Mohammad K. Islam, T. LaFrance, M. E. Moore, X. G. Xu, Mark Yudelev
… photons offer several advantages over lower energy photons in terms of better dose distributions for deep seated tumors, … for beams operating above 10 MV some of the materials in the accelerator room and the radiotherapy patient become … unwanted radiation dose. Recent advances in radiotherapy technology use much longer beam-on times for the same …

Using a Tunable Ultraviolet Laser for the Inactivation of Water Pathogens

September 22, 2013
Author(s)
Thomas C. Larason, Keith R. Lykke, Ping-Shine Shaw, Lin Chungsan
… radiation effectively inactivates common pathogens found in ground and surface waters such as Cryptosporidium, … an overview of the National Institute of Standards and Technology’s (NIST) involvement in research concerning the disinfection of drinking water …

SEABIRD TISSUE ARCHIVAL AND MONITORING PROJECT: Egg Collections and Analytical Results for 2006-2009

August 2, 2012
Author(s)
Stacy S. Schuur, Paul R. Becker, Sylvain Berail, Russell D. Day, Olivier F. Donard, Keith A. Hobson, Amanda J. Moors, Rebecca S. Pugh, Lauren B. Rust, David G. Roseneau
… biphenyls (PCBs), brominated flame retardants, and mercury in Alaska’s marine environments. In 2006 and 2008-2009, 594 clutches of murre and gull eggs … Specimen Bank, National Institute of Standards and Technology (NIST), using established protocols. During …

SWIR calibration of spectralon reflectance factor

October 3, 2011
Author(s)
Catherine C. Cooksey, Georgi T. Georgiev, James J. Butler, Leibo Ding, Kurtis J. Thome
… Satellite instruments operating in the reflective solar wavelength region require accurate … Factor (BRF) of laboratory-based diffusers used in their pre-flight and on-orbit radiometric calibrations. … facility at the National Institute of Standards and Technology (NIST). For more than two decades, the DCaL has …

Examination of the Thermal Conditions of a Wood Floor Assembly above a Compartment Fire

July 29, 2011
Author(s)
Daniel M. Madrzykowski, Jonathan L. Kent
… were conducted by the National Institute of Standards and Technology to measure the temperatures above and below a wood … a sense of the structural integrity of the floor assembly in order to provide improved situational awareness. Each experiment was conducted in a wood framed two story structure. Each story consisted of …

Large Scale Fire Dynamics in Spacecraft in Reduced Gravity

June 1, 2011
Author(s)
Gregory T. Linteris
… one such code, the National Institute of Standards and Technology Fire Dynamics Simulator, so that it can be used to accurately describe fires in the variable-gravity environments of space vehicles and … understand limitations to oxygen transport for large fires in a typical module on the International Space Station, and …

Reproducibility and Robustness of a Real-Time Microfluidic Cell Toxicity Assay

May 15, 2011
Author(s)
Gregory A. Cooksey, John T. Elliott, Anne L. Plant
… Numerous opportunities exist to apply microfluidic technology to high-throughput and high-content cell-based … of a cell-based assay for reporting ribosome activity in microfluidic devices made of poly(dimethylsiloxane) … imaging across 8 duplicate columns of chambers (8 rows in each column) within a 64-chamber microfluidic device. …

Performance of New and Aged Residential Fire Smoke Detectors

April 1, 2011
Author(s)
Jason D. Averill, Richard G. Gann, William F. Guthrie, Daniel Murphy
… safety components, the National Institute of Standards and Technology (NIST) has generated data to aid assessment of … those emissions. NIST tested four sets of smoke detectors in the Fire Emulator/Detector Evaluator (FEDE) and the UL 217 … by CPSC staff and described as having been installed in homes with imported drywall; Set 2 (ionization only) …

MEMS Young's Modulus and Step Height Measurements with Round Robin Results

September 30, 2010
Author(s)
Janet M. Cassard, Richard A. Allen, Craig D. McGray, Jon C. Geist
… modulus and step height round robin experiment, completed in April 2009, which compares Young s modulus and step height … s modulus and step height measurements are also provided in this paper. Using the same test method, the goal of the … s modulus and step height. Furthermore, a micro and nano technology (MNT) 5-in-1 standard reference material (SRM) can …

Chemical Species and Temperature Mapping in Full Scale Underventilated Compartment Fires

July 5, 2010
Author(s)
Andrew J. Lock, Matthew F. Bundy, Erik L. Johnsson, Kelly M. Opert, Anthony P. Hamins, Cheolhong Hwang, Ki Y. Lee
… monoxide, by a victim remote from the actual fire source. In order to facilitate better building standards, forensic … (FDS) developed at the National Institute of Standards and Technology (NIST) can predict heat transfer and gas flow … chemistry model. This simplification is highly effective in making the code accessible and efficient enough to be used …

Rationale of Color Quality Scale

June 10, 2010
Author(s)
Yoshihiro Ohno, Wendy L. Davis
… diode (LED) sources have been identified, as reported in many publications [2-7]. In particular, the report from CIE Technical Committee TC … CRI score does not correlate well with visual evaluation in many cases. In response to the conclusions of TC 1-62, a …
Displaying 13051 - 13075 of 13227
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