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Displaying 41526 - 41550 of 73970

Literature Review on Enclosure of Elevator Lobbies

March 1, 2003
Author(s)
D W. Stroup
A literature survey was conducted to explore the need and appropriate systems for protecting elevator lobbies from smoke migration. The focus is on smoke spread through elevator shafts and lobbies, building occupant and fire fighter use of elevators during

Magnetic Thin Film Interlaboratory Comparison

March 1, 2003
Author(s)
Fabio C. da Silva, David P. Pappas, C. M. Wang
A potential low magnetic moment standard reference material (SRM) was studied in an interlaboratory comparison. The mean and the standard deviation of the saturation moment m s, the remanent moment m r, and the intrinsic coercivity H c of nine samples were

Magnetization Dynamics Modeled in Magnetic Thin Films

March 1, 2003
Author(s)
Robert D. McMichael
One of the challenges facing designers of high data rate computer hard drives and magnetic memory chips is that for most magnetic metals, it typically takes a fewnanoseconds for the magnetization to come to rest after it has been switched or bumped by a

Managing Content and E-Resources on the NIST Virtual Library (NVL)

March 1, 2003
Author(s)
Susan L. Makar
In May 2002, the Information Services Division (ISD) of Technology Services (TS) at the National Institute of Standards and Technology (NIST) implemented a content management system that greatly facilitates maintenance of the Division's Web site, the NIST

Measured Performance of a 35 Kilowatt Roof Top Photovoltaic System

March 1, 2003
Author(s)
Arthur H. Fanney, E R. Weise, K R. Henderson
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

Measurement of Large Scale Oil Spill Burns (NIST SP 995)

March 1, 2003
Author(s)
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

Modeling Distributed Kinetics in Isolated Semiconductor Quantum Dots

March 1, 2003
Author(s)
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

NDRL/NIST Solution Kinetics Database on the WEB

March 1, 2003
Author(s)
Robert E. Huie
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

Near-Field Polarimetric Characterization of Semi-Crystalline Polymer Systems

March 1, 2003
Author(s)
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

NVLAP Partnerships With NIST Technical Units

March 1, 2003
Author(s)
Hazel M. Richmond, C D. Faison
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

OH Reactivity and UV Spectra of Propane, n-Propyl Bromide, and Isopropyl Bromide

March 1, 2003
Author(s)
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

Optical Measurements of Structure and Orientation in Sheared Carbon-Nanotube Suspensions

March 1, 2003
Author(s)
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

Our Plan for a Wireless Loan Service

March 1, 2003
Author(s)
Nancy Allmang
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

Progress in the Development of a Kinetic Database for Heptane Combustion

March 1, 2003
Author(s)
Wing Tsang
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

Protein Dynamics in Viscous Solvents

March 1, 2003
Author(s)
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

R&D Investment Trends: U.S. Needs More High-Tech

March 1, 2003
Author(s)
Gregory C. Tassey
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
Displaying 41526 - 41550 of 73970
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