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Search Publications

NIST Authors in Bold

Displaying 1101 - 1125 of 1415

Movement on Stairs During Building Evacuations

September 25, 2014
Author(s)
Erica D. Kuligowski, Richard Peacock, Paul A. Reneke, Emily A. Wiess, Jason D. Averill, Robert Hagwood, Enrico Ronchi, Bryan Hoskins, Michael Spearpoint
… NIST has collected fire drill evacuation data in 14 buildings ranging from six to 62 stories in height that … widely within a given stairwell, ranging from 0.05 m/s to 1.26 m/s. These data should provide confirmation of the …

Comprehensive Study of Carbon Dioxide Adsorption in the Metal-Organic Frameworks M 2 (dobdc) (M=Mg, Mn, Fe, Co, Ni, Cu, Zn)

August 28, 2014
Author(s)
Wendy L. Queen, Matthew Ross Hudson, Eric D. Bloch, Jarad A. Mason, Miguel I. Gonzalez, Jason S. Lee, David Gygi, Joshua D. Howe, Kyuho Lee, Tamim A. Darwish, Michael James, Vanessa K. Peterson, Simon J. Teat, Berend Smit, Jeffrey B. Neaton, Jeffrey R. Long, Craig Brown
… frameworks M6d26(dobdc) (dobdc^u4¿6 = 2,5-dioxido-1,4-benzenedicarboxylate; M = Mg, Mn, Fe, Co, Ni, Cu, and Zn) …

Dependence of Soot Optical Properties on Particle Morphology: Measurements and Model Comparisons

February 18, 2014
Author(s)
James Radney, Rian You, Xiaofei Ma, Joseph Conny, Michael R. Zachariah, Joseph T. Hodges, Christopher D. Zangmeister
… of monomer chains with an aggregate fractal dimension of 1.8, and the second type corresponds to aggregates of fractal … mass, with mass absorption coefficients between 5.7 m2 g-1 and 6 m2 g-1, mass extinction coefficients between 12 m2 … absorption coefficients ranging from 5% (lacey soot) to 14% (compact soot). The model, however, was unable to …

Spectral line shapes investigation with Pound-Drever-Hall-locked frequency-stabilized cavity ring-down spectroscopy

October 23, 2013
Author(s)
A. Cygan, S. Wojtewicz, J. Domyslawska, Piotr Maslowski, Katarzyna E. Bielska, M. Piwinski, K. Stec, R.S. Trawinski, F Ozimek, C. Radzewicz, Hisashi Abe, T. Ido, Joseph T. Hodges, D Lisak, R. Ciurylo
… the ring-down signal acquisition rate nearly 300-fold to 14 kHz and reducing the noise-equivalent absorption … by more than an order of magnitude to 7×10−11 cm−1. We discuss how averaging approximately 1000 spectra …

Gradient Nanofiber Scaffold Libraries for Screening Cell Response to Poly(e-caprolactone)-Calcium Phosphate Composites

March 1, 2013
Author(s)
Carl G. Simon Jr., Limin Sun, Laurence C. Chow, William Miles, Christopher K. Tison, Kaushik Chatterjee, Marian F. Young, Vinoy Thomas, Murugan Ramalingam
… for fabricating nanofiber scaffold gradients for use as 1) scaffold libraries for screening the effect of nanofiber … in the form of two-dimensional surfaces or films (2D) [1-6], biomaterials are commonly used in a three-dimensional … the nanotopography of native extracellular matrix [12-14]. For these reasons, we have developed a 2-spinneret …

A gas pressure scale based on primary standard piston gauges

December 6, 2010
Author(s)
Douglas A. Olson, Robert G. Driver, Walter J. Bowers Jr.
… gauges are 35.8 mm in diameter and operate from 20 kPa to 1 MPa. Ten secondary standard piston gauges, two each of five … Two piston gauges operating to 7 MPa were compared to the 1.4 MPa gauges, and two piston gauges operating to 17 MPa … NMIs, and in most cases to better than the standard (k=1) uncertainty of the difference. …

Impact of molecular mass on the elastic modulus of polystyrene thin films

July 31, 2010
Author(s)
Jessica M. Torres, Christopher Stafford, Bryan D. Vogt
… and relative molecular mass (Mn). A range of Mn from 1.2 kg/mol to 990 kg/mol was examined to determine if the … The modulus of thin PS films with a molecular mass of 1.2 kg/mol deviated from bulk behavior when the film … and coworkers (Journal of Chemical Physics 2005, 122 (14), 144712) and recent experimental work by Vogt and …

The 2008 NCSLi Josephson Voltage Standards Interlaboratory Comparison

July 1, 2009
Author(s)
Harold V. Parks, William B. Miller, Leonard P. Pardo, Curtis Kiser, Clark A. Hamilton, Yi-hua D. Tang, Barry M. Wood
… comparison was conducted between March and July 2008 with 14 participating labs in North America. It began with a … the k = 2 uncertainty of the comparison of 6.6 nV at 10 V [1]. Once the NIST-pivot lab comparison was complete, four …

Realizing UTC (NIST) at a Remote Location

December 5, 2008
Author(s)
Judah Levine
… by the Allan deviation of the difference) of about 1×10-14 using administrative steering that is applied not … week. The corresponding time deviation (TDEV) is less than 1 ns for all averaging times less than 1 week, and the peak …

Long-term Stability of the NIST Standard Ultrasonic Source

October 1, 2008
Author(s)
Steven E. Fick
… a transducer capable of output power levels up to 1 W at multiple frequencies between 1 MHz and 30 MHz, and an electrical impedance-matching … ancillary equipment. The SUS was offered for sale for 14 years (1985-1999). Each system was furnished with data for …

Large array of multiplexed gamma-ray microcalorimeters for nuclear-materials analysis

January 24, 2008
Author(s)
W.Bertrand (Randy) Doriese, Joel Ullom, James A. Beall, William Duncan, S. L. Ferreira, Gene C. Hilton, Rob Horansky, Kent D. Irwin, John Mates, Carl D. Reintsema, Dan Schmidt, Leila R. Vale, Yizi Xu, Barry L. Zink, Michael W. Rabin, Minesh K. Bacrania, Stephen Lamont, Andrew Hoover, Clifford R. Rudy, Duc Vo, C. K. Stahle, Kevin R. Boyce, Larry E. Brown, Jonathan M. King, F. S. Porter
… reading out 256 sensors. Our most recent sensors are bulk (1.5 mm-square by 0.25 mm-thick) superconducting-Sn absorbers … In addition, we review results from a prototype array of 14 detectors, which achieved 47 eV average energy resolution … Paris, 1, FR …

Concordance Study Between the AmpFlSTR((R)) MiniFiler(TM) PCR Amplification Kit and Conventional STR Typing Kits

July 25, 2007
Author(s)
Carolyn R. Steffen, Margaret C. Kline, Julio J. Mulero, Robert E. Lagace, Chien-Wei Chang, Lori K. Hennessy, John M. Butler
… as well as the sex-typing locus amelogenin. A total of 1,313 samples were evaluated with both the MiniFiler and … compared. The 29 differences seen are listed in Table 1 and encompass the loci D13S317 (n=14) and D16S539 (n=9) as well as D18S51 (n=1), D7S820 (n=1), …
Displaying 1101 - 1125 of 1415
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