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.
Relative motion in a two-component, trapped gas provides a sensitive probe of interactions. By studying the lowest frequency excitations of a two spin-state gas
In a recent paper modeling the refractive index of water, some data taken at the National Bureau of Standards in the 1930s are not handled correctly. The
David J. Ross, D Bonn, A I. Posazhennikova, J O. Indekeu, J Meunier
We study wetting in liquid mixtures of methanol and the n-alkanes. Mixing alkanes of different chain lengths, we can examine the crossover between critical
The phase diagram for the orientation of the surface region is calculated in the parameter space defined by the surface and bulk anisotropy in semi-infinite
Endonuclease VIII (Nei) is one of three enzymes in Escherichia coli that are involved in base-excision repair of oxidative damage to DNA. We investigated the
Emil Bazaev, Ilmutdin Abdulagatov, Joe W. Magee, Michail Rabezkii, Asbat E. Bazaev
The PVTx relationships of dilute (1 – x)water + x toluene mixtures were measured in the near-critical and supercritical regions, with a constant-volume
In the past years statistical process methodologies have been widely used in industry for process monitoring. However, the assumption that the process data are
The chapter describes the key roles that governments play in human-computer interaction: as users of software, producers of information, legislators of
A new fixture for flexural strength testing was used to evaluate the effects of machining on the flexural strength of a toughened sintered reaction-bonded
Fracture mechanics often is applied in fractographic analyses in order to verigy that the correct feature has been identified as the fracture origin. This step
X-ray diffraction topography has been used to investigate the relationship between sub-surface damage and fracture strength in sapphire modulus of rupture (MOR)
H W. Kim, Y N. Deng, P Miranda, Antonia Pajares, D H. Kim, H E. Kim, Brian R. Lawn
A study is made of the role of flaw state on the strength properties of brittle ceramic coating layers bonded to soft polycarbonate substrates. We introduce
David R. Black, Robert S. Polvani, George D. Quinn
X-ray topography provides a unique view of the surfaces of single-crystal samples, both before and after fracture. The diffraction topograph, which is sensitive
Precipitated silver particles acid activated and consolidated with pressure to a final volume porosity of 25 %, (CS) were investigated by electrochemical
The crystalline and microphase-separated morphology of semicrystalline block copolymers are compared in bulk (0.5-1 mm) and thin films (5-0 m), as characterized
We report scattering lengths for the 1ς + g, 3ς + u, 5ς + g adiabatic molecular potentials relevant to collisions of two metastable 2 3S helium atoms as a
The synthesis of optical frequencies from the primary cesium microwave standard has traditionally been a difficult problem due to the large disparity in
Zachary H. Levine, A R. Kalukin, M Kuhn, S P. Frigo, I McNulty, C C. Retsch, Y Wang, Uwe Arp, Thomas B. Lucatorto, Bruce D. Ravel, Charles S. Tarrio
00 Word summary based on the paper:Z. H. Levine, A. R. Kalukin, M. Kuhn, S. P. Frigo, I. McNulty,>C. C. Retsch, Y. Wang, U. Arp, T. B. Lucatorto, B. D. Ravel
We propose a direct, coherent coupling scheme that can create massive entangled states of Bose-Einstein condensed atoms. One idea is based n an effective
A new, isoplethic method is used to determine critical lines of azeotropic binary fluid mixtures using vapor-liquid equilibrium data including saturated vapor
This book suggests that a computational theory of mind is emerging that will enable the engineering of mind. It briefly traces the history of scientific
James C. Rainwater, Daniel G. Friend, Howard J. Hanley, Allan H. Harvey, C D. Holcomb, Arno R. Laesecke, Joe W. Magee, Chris D. Muzny
Forum 2000 was held at the 14th symposium for Thermophysical Properties, with all symposium attendees invited. The Forum addressed the present needs and
The effect of heat transfer on the spreading of a water droplet impacting a heated surface has been numerically investigated. The aim is to assess the validity
The National Institute of Standards and Technology (NIST) cement hydration model starts with a three-dimensional digital image of cement particles, and then
An approach to lattice Boltzmann simulation is described, which makes a direct connection between classical kinetic theory and contemporary lattice Boltzmann
The modulation transfer function (MTF) using amplitude modulation (mA) data is a vital coherent optical performance measure for a spatial light modulator (SLM)