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Search Publications

NIST Authors in Bold

Displaying 76 - 100 of 459

Design and Optimization of a Permeation Testing System for Polymer Coatings

August 8, 2011
Author(s)
Adrian E. Verwolf
Measurements of liquid permeation through freestanding Parylene C membranes were made using a high- performance testing system, which demonstrated fast response (≤ 30 seconds) to changing concentrations in the sweep gas stream and detectability of less

Temperature Characterization in the Collection Tank of the NIST 26 m(3) PVTt Gas Flow Standard

September 1, 2003
Author(s)
Aaron N. Johnson, John D. Wright, Michael R. Moldover, Pedro I. Espina
… upgraded the temperature-averaging scheme used in our 26 m 3 PVTt system. Instead of arithmetically averaging 10 … the mean gas temperature can be determined to better than 88 mK after only 2700 seconds of fan mixing. As a result, the flow uncertainty in the NIST 26 m 3 PVTt system has decreased from 0.22 % to 0.13 % (with a …

Dynamics in a Two-Level Atom Magneto-Optical Trap

July 1, 2002
Author(s)
X Xu, T Loftus, M J. Smith, John L. Hall, Alan Gallagher, Jun Ye
… k and damping coefficients (alpha) for a 1 S 0- u1^P 1 88 Sr MOT by fitting the oscillatory response of the atom …

Low-temperature Growth of GMR Spin Valves

January 1, 1996
Author(s)
William F. Egelhoff Jr., R Misra, T Ha, Y Kadmon, Cedric J. Powell, Mark D. Stiles, Robert McMichael, Lawrence H. Bennett, C Lin, J Sivertsen, J Judy
We have investigated the dependence of the giant magnetoresistance (GMR) effect, the coercivity, the coupling field, and the resistivity on film deposition at low-substrate temperatures (150 K) in spin valve multilayers of the general type: FeMn/Ni 80Fe 20

Computer Simulations of Airflow and Radon Transport in Four Large Buildings.

April 1, 1995
Author(s)
Jin B. Fang, Andrew K. Persily
Computer simulations of airflow and radon transport in four large buildings were performed using the multi-zone airflow and pollutant transport model CONTAM88. These buildings include a twelve-story multi-family residential building, a five-story

PyLCP: A python package for computing laser cooling physics

September 9, 2021
Author(s)
Stephen Eckel, Daniel Barker, Eric Norrgard, Julia Scherschligt
… like those formed on the narrow $^1$S$_0\rightarrow ^3$P$_1$ transition in $^88}$Sr, and theoretically explain the unique limitations of …

Abrupt dependence of ultrafast extrinsic photoconductivity on er fraction in gaas:er

July 1, 2017
Author(s)
Elliott Brown, A. Mingardi, W-D. Zhang, Ari Feldman, Todd E. Harvey, Richard Mirin
… 10 18 (control sample), 4.4 x 10 20 , and 8.8 x 10 20 cm -3 , respectively. Transmission-electron microscopy reveals a … but an abundance in the other two samples in the 1.0-to-3.0-nm-diameter range, consistent with the previously-known … very high photoelectron (Hall) mobility (2.26x10 3 cm 2 /V-s) and terahertz power (46 υW average) in the 4.4 x …

Acoustic Modes and Elastic Properties of Polymeric Nanostructures

October 21, 2005
Author(s)
R Hartschuh, A Kisliuk, V N. Novikov, Alexei Sokolov, Paul R. Heyliger, Colm Flannery, Ward L. Johnson, Christopher Soles, Wen-Li Wu
… from bulk-like properties in structures as small as 88 nm, it demonstrates the possibility of quantifying the …

Pore Space Partition within a Metal-Organic Framework for Highly Efficient C 2 H 2 /CO 2 Separation

March 14, 2019
Author(s)
Yingxiang Ye, Zhenlin Ma, Rui-Biao Lin, Rajamani Krishna, Wei Zhou, Quanjie Lin, Zhangjing Zhang, Shengchang Xiang, Banglin Chen
… the cylindrical channels in the original FJU-88 have been partitioned into uniformly interconnected pore … FJU-90a takes up a very high amount of C 2 H 2 of 180 cm 3 g -1 but much less of CO 2 of 103 cm 3 g -1 at 298 K and 1 bar, demonstrating it as the best …

Genetic circuit design automation

April 1, 2016
Author(s)
Alec Nielsen, Bryan Der, Jonghyeon Shin, Prashant Vaidyanathan, Douglas Densmore, Vanya M. Paralanov, Elizabeth Strychalski, David J. Ross, Christopher Voigt
… Using Cello, 60 circuits were designed for E. coli (0.88 Mbp of DNA), for which each DNA sequence was built as …

X-Ray microbeam diffraction study of long-range internal stresses in equal-channel angular pressed aluminum

November 1, 2013
Author(s)
Lyle E. Levine, I-Fang Lee, Thien Phan, Jonathan Z. Tischler, Peter Geantil, Yi Huang, Terrance G. Langdon, Michael E. Kassner
… using a single pass (equivalent uniaxial strain of about 0.88). Long-range internal stresses (LRIS) were assessed in … of {531} planes that are oriented approximately +27.3°, +4.9°, and -17.5° off the extrusion (axial) direction …

High quantum-efficiency photon-number-resolving detector for photonic on-chip information processing

September 18, 2013
Author(s)
Brice R. Calkins, Paolo L. Mennea, Adriana E. Lita, Benjamin Metcalf, Steven Kolthammer, Antia A. Lamas-Linares, Justin Spring, Peter C. Humphreys, Richard P. Mirin, James Gates, Peter Smith, Ian Walmsley, Thomas Gerrits, Sae Woo Nam
… or minus} 2% detection efficiency with a single pass, and 88% {plus or minus} 3% at the operating wavelength of an on-chip terminal …
Displaying 76 - 100 of 459
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