An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Robert E. Huie, Vladimir L. Orkin, F Louis, S N. Kozlov, Michael J. Kurylo III
Over the past several years, we have determined the kinetics of the reactions of the hydroxyl radial, OH, for a wide range of bromine-containing compounds that
Steven J. Emmerich, Cynthia H. Reed, Andrew K. Persily
A modeling study of airflow and contaminant transport in the Hart Senate Office Building (HSOB) was performed to obtain insight into the transport of anthrax
Jason D. Averill, Richard D. Peacock, Richard W. Bukowski, Paul A. Reneke
This Report of Test documents the second series of full scale tests conducted as part of research into the performance of smoke alarms. The first series of
P E. DesJardin, Cary Presser, P J. Disimile, J R. Tucker
The overall objective of this research is to gain fundamental knowledge of fire-suppression agent transport in the cluttered environments of aircraft engine
In the TREC 2001 Interactive Track six research teams carried out observational studies which increased the realism of the searching by allowing the use of data
A pre-existing microcrack is considered to grow in steady state along a grain boundary of an interconnect line under the action of an applied electric field
John H. Burnett, Zachary H. Levine, Eric L. Shirley
We discuss the intrinsic birefringence of calcium fluoride and othercrystalline materials that may be used in the optics for 193nm and 157nmlithography
Tsai Hong Hong, C E. Rasmussen, Tommy Chang, Michael O. Shneier
In an outdoor, off-road mobile robotics environment, it is important to identify objects that can affect the vehicle''s ability to traverse its planned path
Rebecca A. Zangmeister, K G. Olsen, David J. Ross, Michael J. Tarlov
It has been previously demonstrated that DNA, modified on the 5' end with an acrylic acid group, can be incorporated into a polyacrylamide hydrogel matrix
Alim A. Fatah, John Barrett, Richard Arcilesi, Patrick Scolla, Charlotte H. Lattin, Susan Fortner
This guide includes information that is intended to assist the emergency first responder community in the selection of communication equipment for different
S L. Kennedy, N Washburn, A Sehgal, Alamgir Karim, Eric J. Amis
It has been well established that cell substrate topography can affect cell morphology and cell behavior. Numerous groups have demonstrated that cell alignment
B C. Baker, Thomas P. Moffat, Daniel Josell, Daniel Wheeler
Successful superfilling of lines and vias will be shown with a commercial, silver-cyanide electrolyte. Hysteretic i-V behavior and chronoamperometric transients
Tissue engineering is a new paradigm in medicine with the goal of regenerating missing or damaged tissue. One strategy is to develop scaffolds that, after
A combination of analysis tools (x-ray and neutron reflectivity and scattering, contact angle, fluorescence labeling, and near edge x-ray absorption fine
B C. Baker, Clayton S. Yang, Lee J. Richter, Thomas P. Moffat
With the use of fourier transform infrared spectroscopy (FTIR) and sum frequency generation spectroscopy (SFG), the surface coverage and confirmation of
The deprotection reaction front profile between exposed and unexposed regions of a chemically amplified photoresist can limit the ultimate feature resolution (i
Dendrimers are highly branched polymers prepared by alternating addition of monomers to a multifunctional core, resulting in a layered, treelike structure
Ronald L. Jones, Eric K. Lin, Joseph~undefined~undefined~undefined~undefined~undefined Lenhart, Christopher L. Soles, Wen-Li Wu
We report on attempts to control surface morphology using current lithographic processes critical to the development of both inorganic and organic nano
We discuss our design for a laser-scanning confocal microscope that will provide fluorescence images with diffraction-limited spatial resolution and spectral
By combining the techniques of laser cooling and photoionization, we have created a reasonably dense (up to 10 10 cm -3), stable, neutral plasma at ultracold
The measurement of color (called colorimetry) uses a set of three spectral response curves standardized by the Commission Internationalede l'Eclairage (CIE)
Over the years, electronic structure theorists have frequently returned to the beryllium dimer and its dissociation energy as a problem of enduring popularity
C J. Taylor, Richard E. Cavicchi, Stephen Semancik
Gas sensing characteristics of metal oxide films are dependent on the preparation method used in their fabrication. To optimize sensing film performance, one
M Savage, D E. Kramer, A Lin, Timothy J. Foecke, S A. Barnett
Understanding the deformation mechanisms in nanolaminated composites is an important step towards developing constitutive laws that describe their mechanical
In recent years there have been rapid advances in theoretical models and calculational techniques for few-electron systems. Atomic structure calculations for
N O. Savage, Richard E. Cavicchi, Michael J. Tarlov, Stephen Semancik, J Greg Gillen
Sol-gel chemistry is used to create suspensions (sols) of small particles of materials such as metal oxides. These suspensions can be dried to a gel or powder
The transmission of soft x-rays with photon energies from 1606 eV to 2106 eV was measured for tungsten using thin film samples and a synchrotron source. This
This letter describes a series of ignition experiments, which were designed to characterize the ignition propensity of materials involved in the investigation