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Search Publications

NIST Authors in Bold

Displaying 29451 - 29475 of 73929

Meaningful Performance Evalution Conditions for Fire Service Thermal Imaging Cameras

November 1, 2008
Author(s)
Francine K. Amon, Anthony P. Hamins, Nelson P. Bryner, Justin Rowe
Thermal imaging cameras (TIC) are rapidly becoming integral equipment for the fire service for use in structure fires and other emergencies. The Building and Fire Research Laboratory (BFRL) at the National Institute of Standards and Technology has

MESFETs made from individual GaN nanowires

November 1, 2008
Author(s)
Paul T. Blanchard, Kristine A. Bertness, Todd E. Harvey, Lorelle Mansfield, Aric W. Sanders, Norman A. Sanford
In this paper, we demonstrate novelMESFETs based on individual GaN nanowires. The Pt/Au Schottky gates exhibited excellent two-terminal Schottky diode rectification behavior. The average effective Schottky barrier height was 0.87 eV, with an average

Metrology for the Electrical Characterization of Semiconductor Nanowires

November 1, 2008
Author(s)
Curt A. Richter, Hao Xiong, Xiaoxiao Zhu, Wenyong Wang, Vincent M. Stanford, Woong-Ki Hong, Takhee Lee, D. E. Ioannou, Qiliang Li
Nanoelectronic devices based upon self-assembled semiconductor nanowires are excellent research tools for investigating the behavior of structures with sub-lithographic features as well as a promising basis for future information processing technologies

On the Criteria for Smoldering Ignition in the CFR 1632 Test for Mattresses

November 1, 2008
Author(s)
Thomas J. Ohlemiller
The Sleep Products Safety Council is sponsoring a study at NIST of the viability of a bench-scale version of CFR 1632 (cigarette ignition of mattresses). In the context of this study, NIST was also asked by CPSC to look into the criteria used to decide the

On the Significance of Transient Heat Release Rate Excursions Above a Set Limit

November 1, 2008
Author(s)
Thomas J. Ohlemiller, Richard D. Peacock
When a heat release rate limit for a consumer product is set by a regulatory agency, it is of interest to know whether small excursions above that limit, such as may occur due to production line variability, represent a disproportionate increase in fire

Phase and Valence Transitions in Ba^2^LnSn x Nb 1-x O 6-d

November 1, 2008
Author(s)
Paul J. Saines, Brendan J. Kennedy, Bernt Johannessen, Sarah Poulton
The structures of compounds in the perovskite series Ba2LnSnxNb1−xO6−δ (Ln=Pr and Tb and x=0, 0.1, 0.2, ..., 1.0) have been examined using synchrotron X-ray and neutron diffraction. It was found that niobate members of both series feature full B-site

Reflective optical chopper used in NIST high-power laser measurements

November 1, 2008
Author(s)
Xiaoyu X. Li, Thomas Scott, Christopher L. Cromer, Joshua A. Hadler
For the past ten years, NIST has used high-reflectivity, optical choppers as beamsplitters and attenuators when calibrating the absolute responsivity and response linearity of detectors used with high-power CW lasers. The chopper-based technique has

Thermodynamic properties of tert-butylbenzene and 1,4-di-tert-butylbenzene

November 1, 2008
Author(s)
Robert D. Chirico, William Steele
Heat capacities, enthalpies of phase transitions, and derived thermodynamic properties in the temperature range 5 < (T/K) < 442 were determined with adibatic calorimetry for tert-butylbenzene (TBB) {Chemical Abstracts Service registry number (CASRN) [98-06

In-Situ Torque Magnetometry: Magnetic Coupling in Fe/Cr/Fe Thin-Film Systems

October 31, 2008
Author(s)
Dong-Hoon Min, S. B. Lee, John M. Moreland
We have developed an ultra-sensitive torque magnetometer tailored to the study of thin-film interface magnetism and interlayer magnetic exchange coupling. The magnetometer was composed of an optical-fiber interferometer and a customized silicon cantilever

MATERIALS SCIENCE: Nanoscale Polymer Processing

October 31, 2008
Author(s)
Christopher L. Soles, Yifu Ding
Plastics are ubiquitous in our modern world. It difficult to find a manufactured object that does not contain at least some sort polymeric (plastic) components. This ubiquity, in large part, reflects the ease with which polymers can be formed at low

NIST BusiBEES METRICS AND TOOLS FOR GREEN BUILDINGS

October 31, 2008
Author(s)
Barbara C. Lippiatt, Jennifer Helgeson
Building stakeholders need compelling metrics, tools, data, and case studies supporting major investments in sustainable building technologies. Proponents of green building widely claim these buildings to be cost-effective, but often these claims are based

Standardization of 68Ge/68Ga using three liquid scintillation counting-based methods

October 31, 2008
Author(s)
Brian E. Zimmerman, Jeffrey T. Cessna, Ryan P. Fitzgerald
A solution containing 68Ge in equilibrium with its daughter, 68Ga, has been standardized for the first time at the National Institute of Standards and Technology using 3 liquid scintillation- based techniques: live-timed 4pb-g anticoincidence (LTAC)

Surviving the Transition

October 31, 2008
Author(s)
Kristian Helmerson
Observations of the birth of a superfluid have uncovered details of the microphysics of phase transitions. Whether these results can be used to model such trnsitions in the early Universe is an open question.

METRICS TO SUPPORT INFORMED DECISION MAKING FOR CONSUMERS OF BIOBASED PRODUCTS

October 30, 2008
Author(s)
Barbara C. Lippiatt, Marvin Duncan, Zia Haq, Roger Conway
As public policy initiatives, coupled with growing consumer interest have raised the level of interest in the bioeconomy, the question of the appropriate criteria to use in selecting bioproducts, including biofuels, and evaluating their environmental and
Displaying 29451 - 29475 of 73929
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