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Displaying 41651 - 41675 of 74090
A 35-kilowatt roof top photovoltaic system has been installed at the National Institute of Standards and Technology (NIST) in Gaithersburg, Maryland. The system, located on a the roof that connects NIST s Administration Building to its adjoining conference
D D. Evans, William D. Walton, Howard R. Baum, James R. Lawson, Ronald G. Rehm, Richard H. Harris Jr., A Ghoniem, J Holland
Research has shown that burning can be an effective means to remove oil from the surface of the water. The combustion characteristics of crude oil have been measured in large laboratory tests using a nominal one meter diameter pool fire. This work reports
The influence of cracking upon apparent Knoop hardness was investigated for five glasses. The Knoop hardnesses decreased with increasing load in accordance with the classic indentation size effect (ISE). Cracking commenced at moderate loads and, in three
Annual publication--FY 2002 Programs and Accomplishments: MSEL Materials for Micro- and Optoelectronics. Today's U.S. microelectronics and supporting infrastructure industries are in fierce international competition to design and produce new smaller
Y Gu, T Nakamura, L Prchlik, S Sampath, Jay S. Wallace
Properties of a graded material were characterized with a procedure based on an inverse analysis. This inverse analysis procedure utilizes experimental records obtained from instrumented micro-indentation measurements and extracts key properties of
M Kuno, D P. Fromm, S T. Johnson, Alan Gallagher, David Nesbitt
tailed modeling of recently observed nonexponential fluorescence intermittency in colloidal semiconductor quantum dots (QDs) is presented. In particular, experiments have shown that both on-time and off-time probability densities generated from single-QD
Kristine A. Bertness, Susan Y. Lehman, Joseph T. Hodges
We have demonstrated the use of cavity ring-down spectroscopy to measure water concentrations in the nmol/mol (ppb) range in nitrogen and phosphine gases. To our knowledge, these measurements are the first successful application of this method to a toxic
A Solution Kinetics Database, jointly created byNIST and the Notre Dame Radiation Laboratory, hasbeen made available on the Internet in a format similarto that utilized by the popular NIST KineticsDatabase, which covers gas-phase reactions. TheSolution
S N. Goldie, Michael J. Fasolka, Lori S. Goldner, Jeeseong C. Hwang, Kathryn Beers
We have studied crystallization in thin films of isotactic polystyrene (iPS) to better understand the morphology and formation of these structures through the use of polarization modulation near-field scanning optical microscopy (PM-NSOM). Polymer
Two manuscripts recently have been accepted in RapidCommunications in Mass Spectrometry that detail aninternational collaboration to identify, understand at afundamental level, and correct measurement biasesmanifested in gas isotope ratio mass
This report provides NIST managers with an overview of the range and types of technical partnerships between Technology Services' National Laboratory Accreditation Program (NVLAP) and NIST Technical Units. It provides a description of NVLAP programs, and
S N. Kozlov, Vladimir L. Orkin, Robert E. Huie, Michael J. Kurylo III
The rate constants for the reactions of OH radicals with the 1-bromopropane, 2-bromopropane, and propane were measured using the flash photolysis reasonance fluorescence technique over the temperature range between 210 K and 480 K. Arrhenius plots exhibit
Erik K. Hobbie, Haonan Wang, H W. Kim, Charles C. Han, E A. Grulke, Jan Obrzut
We describe an optical metrology for measuring shear-induced structure and orientation in dilute dispersions of multiwalled carbon nanotubes. Small-angle polarized light scattering and optical microscopy are combined in situ to quantify the structural
The article would describe, from a librarian's standpoint, what one library has done to gear up for a wireless LAN. It would discuss specific steps the library has taken to get a Wireless Equipment Loan Service up and running.It would explain a dual
The phase of the azimuthal dependence of second harmonic generation from Si(001) interfaces is observed to undergo an inversion for the correct polarization configurations. The azimuthal dependence is due to interference between second harmonic generation
This paper deals with the development of a chemical kinetic database for use in the simulation of heptane combustion. The database consists of the thermodynamic properties of all reactants, intermediates and products and the consequences, in terms of rate
G Caliskan, A Kisliuk, A M. Tsai, Christopher Soles, Alexei Sokolov
The principals governing the effective stabilization of tissues and drugs are unclear and effective agents for preservation are discovered largely by trail and error. We explore the use of low frequency Raman spectroscopy as an effective tool fro direct
A varied set of barriers inhibit approaching some optimum for R&D investment. Among them is the fact that the majority of R&D is still performed in the manufacturing sector, which continues to shrink as a portion of GDP. R&D Performance within the U.S
C Habauzit, Steven W. Brown, Keith R. Lykke, B. Carol Johnson, M Feinholz, M Yarbrough, D K. Clark
The Marine Optical Spectrograph (MOS) is a dual CCD-based spectrograph system developed for in-water measurements of down-welling solar irradiance, Ε d, and up-welling radiance, L u. These measurements are currently used in the calibration and validation
Nelson P. Bryner, William D. Walton, Laurean A. DeLauter, W H. Twilley, J. V. Mullin
This study examined the response of several particulate monitoring instruments to aerosols which might be encountered during monitoring of an in situ oil spill burn. Aerosols included road dust, salt, and particulates from the combustion of heptane, diesel
V S. Gornakov, Valerian I. Nikitenko, William F. Egelhoff Jr., Robert D. McMichael, Alexander J. Shapiro, Robert D. Shull
The relative orientation of Co magnetization vectors in a Co/Ru/Co/Ta structure vary gradually from parallel to antiparallel orientation as a function of Ru thickness varying from 0 nm to 1.0 nm. At intermediate average Ru thicknesses from 0.2 nm to 0.35
William D. Walton, W H. Twilley, Nelson P. Bryner, Laurean A. DeLauter, R. R. Hiltabrand, J. V. Mullin
A second series of fire tests utilizing the ASTM F-20 draft, Standard Guide for In Situ Burning of Oil Spills On Water: Fire-Resistant Containment Boom, as a guideline were conducted in a wave tank at the U.S. Coast Guard Fire and Safety Test Detachment in
This collection of Selected Publications has been compiled as an interim update for a number of Good Laboratory Practices, Good Measurement Practices, Standard Operating Procedures, Statistical Techniques and Reference Tables to be used as a reference