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.
A potential-energy surface for the water-helium complex is constructed from scaled perturbation theory calculations, and calibrated using accurate supermolecule
This article describes how artificial neural networks (ANNs) can be used to benefit a number of RF and microwave measurement areas including vector network
Laser light scattering and thermophoretic sampling have been used to investigate particle formation in a methane-air counterflow diffusion flames inhibited by
Conditions for which superconformal filling of vias can be expected are predicted using the curvature enhanced accelerator coverage mechanism to model the
I. A. Mendelssohn, Q. Lin, K. Carney, Nelson P. Bryner, William D. Walton
Oil spills pose a serious risk to the health of wetland systems. A cleanup technique that is compatible with the wetland environment and is consistent with
The effects of velocity boundary conditions on the structure of methane-air nonpremixed counterflow flames were investigated by two-dimensional numerical
A detailed uncertainty analysis for NIST's pulse parameter measurement service is presented that represents the new pulse parameter mesurement and extraction
M D. Rumminger, Valeri I. Babushok, Gregory T. Linteris
Chemically-active fire suppressants may, due to their properties or the means by which they are added to flames, have strong inhibition effects in particular
Most cellular solids are random materials, while practically all theoretical structure-property relations are for periodic models. To generate theoretical
J Westbrook, Z. Feng, Sanjay Jain, Talapady N. Bhat, N Thanki, Veerasamy Ravichandran, G L. Gilliland, W Bluhm, H Weissig, D S. Greer, P E. Bourne, H M. Berman
The Protein Data Bank (PDB; http://www.pdb.org/) is the single worldwide archive of structural data of biological macromolecules. This paper describes the
R Fogh, W Boucher, E Laue, J Ionides, W Vranken, P Gliwa, J Thornton, E L. Ulrich, J Linge, Talapady N. Bhat, J Westbrook, H M. Berman, G L. Gilliland, M Habeck, W Rieping, M Nilges, J L. Markley
The Collaborative Computing Project for NMR (CCPN) was originally funded by the Biotechnology and Biological Sciences Research Council (BBSRC) in the UK along
The impact test method based on a pendulum, generally called the Charpy test, is one of the more cost-effective material testing procedures, both with respect
N Terashima, J Hafren, U Westermark, David L. VanderHart
Guaiacyl-type lignin is the major component of ginkgo lignin. Specific 13C-enrichment of alpha, beta and gamma-carbons of the guaiacylpropane side chains was
S Y. Yang, P A. Mirau, C S. Pai, O Nalamasu, E Reichmanis, J C. Pai, Yaw S. Obeng, J Seputro, Eric K. Lin, Hae-Jeong Lee, J Sun, D Gidley
Triblock polymers, poly(ethylene oxide-b-propylene oxide-b-ethylene oxide) (PEO-b-PPO-b-PEO), are used as molecular templates in poly(methyl silsesquioxane)
Anthony B. Kos, Thomas J. Silva, Pavel Kabos, Matthew Pufall, Donald C. DeGroot, L Webb, M Even
A low-cost, inductive current probe designed for integration into a disk drive trace suspension assembly is described. The main consideration for this design
We have investigated the mutual inductance observed on pairs of voltage tapes that are soldered to superconducting wires in order to measure the voltage-current
The isoelectric point (IEP) is a key material property for aqueous-based processing of advanced ceramic powders. The IEP characterizes the acid-base behavior of
The electrolinetic behavior of BaTO 3 particles in an aqueous medium exhibit a hysteresis loop with titration direction. As BaTiO 3 suspension was titrated
Joy Dunkers, D P. Sanders, Donald L. Hunston, M J. Everett, William H. Green
Optical coherence tomography (OCT) is an emerging technique for imaging of synthetic materials. OCT is attractive because of the combination of its high