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NIST Authors in Bold

Displaying 29501 - 29525 of 73829

An Observable Measure of Multiqubit Entanglement for Pure States

October 16, 2008
Author(s)
G K. Brennen
Recently, Meyer and Wallach [D.A. Meyer and N.R. Wallach (2002), J. of Math. Phys., 43, pp. 4273] proposed a measure of multi-qubit entanglement that is a function on pure states. We find that this function can be interpreted as a physical quantity related

An Optical Sensor for Measuring Fluorescence Anisotropy of Oriented Polymers

October 16, 2008
Author(s)
S C. Roth, Anthony J. Bur
An optical sensor containing polarizing optical components has been constructed for the purpose of measuring fluorescence anisotropy of fluorescent dyes. The measurement involves the detection of vertical and horizontal components of fluorescent light

Analyses of QC Materials for Huntington s Disease Genetic Testing

October 16, 2008
Author(s)
J P. Jakupciak, Kristy L. Richie
The expansion of molecular testing using nucleic acid technologies in clinical and public health practice has increased the need for appropriate reference materials and verified quality control (QC) materials for quality assurance, test validation

Analysis of High-Resolution Infrared and N 1 CARS Spectra of 34 S 18 O 3

October 16, 2008
Author(s)
Tony Masiello, J Barber, E T. Chrysostom, J Nibler, A G. Maki, A Weber, Thomas A. Blake, R L. Sams
Three fundamental modes and several hot bands of 34S 18O 3 have been investigated using both infrared spectroscopy and coherent anti-Stokes Raman scattering spectroscopy (CARS). Coriolis coupling effects are particularly noticeable in 34S 18O 3 due to the

Analysis of Structural Steel in the World Trade Center Investigation

October 16, 2008
Author(s)
Frank W. Gayle, Richard J. Fields, Stephen W. Banovic
In March 2002 NIST became the lead agency in an investigation of the World Trade Center collapse. The investigation addresses many aspects of the catastrophe, from occupant egress to factors affecting how long the Twin Towers stood after being hit by the

Anomalous Relaxation in Entropic Colloidal Gels

October 16, 2008
Author(s)
Erik K. Hobbie, A D. Stewart
Brownian motion in depletion-force networks is studied with video microscopy in confined nearly hard-sphere mixtures. The particle trajectories show anomalous diffusion, while the self part of the van Hove correlation function exhibits a novel scaling in

Any-Order Propagation of the Nonlinear Schroedinger Equation

October 16, 2008
Author(s)
Frederick Strauch
We derive an exact propagation scheme for nonlinear Schr\o}dinger equations. This scheme is entirely analogous to the propagation of linear Schr\o}dinger equations. We accomplish this by defining a special operator whose algebraic properties ensure the

Application of a CMP Model to Tungsten CMP

October 16, 2008
Author(s)
E W. Paul
A general model of chemical mechanical polishing (CMP) has been derived which shows the dependence of the polishing rate on the concentration of chemicals and abrasives in the slurry. This paper applies the model to tungsten CMP and describes the chemistry

Application of Fluorescent Molecules as In-Situ Probes of Bone Cement Cure

October 16, 2008
Author(s)
Francis W. Wang, D G. Sauder
This paper describes the fluorescence behavior of anthracene and Re(CO) 3CIL, (where L=4,7-diphenyl-1,10-phenanthroline) in a commercial bone cement. New in these studies is the observation that the reduction in intermolecular quenching accompanying

Applications of Micro-Ring Resonator Filter Devices

October 16, 2008
Author(s)
S T. Chu, B E. Little, Y Kokubun, W Pan
Recently reported micro-ring resonator filters have demonstrated their compactness and signal processing functions. These features are attractive for large-scale integrated photonic circuits. This paper reviews the development and discusses the potential

Assessment of Error Sources in Rockwell Hardness Measurements

October 16, 2008
Author(s)
Walter S. Liggett Jr, Samuel Low, David J. Pitchure, Jun-Feng Song
In the use of hardness test blocks, the uncertainty due to block non-uniformity can be reduced if one is willing to make measurements at specified locations on the blocks. Statistical methods for achieving this reduction are explained in this paper. The

Atomic Data for Dielectronic Recombination Into C-like Oxygen

October 16, 2008
Author(s)
U I. Safronova, I Murakami, T Kato, D Kato, Y Ralchenko
Energy levels, radiative transition probabilities, and autoionization rates for C-like oxygen (O$^2+}$) including $1s^22s^22pnl$, $1s^22s2p^2nl$, and $1s^22p^3nl$ ($n$=2-8, $l \le n-1$) states are calculated by theHartree-Fock-Relativistic method (Cowan

Atomic Data for Lighting Applications

October 16, 2008
Author(s)
Gillian Nave, Craig J. Sansonetti, Joseph Reader
A major objective of our research program is the observation of spectra of rare earth elements in support of our program of atomic data measurements for lighting applications. Three years ago, NIST acquired a high-resolution Fourier transform spectrometer

Atomic Spectral Line Broadening Bibliographic Database

October 16, 2008
Author(s)
Jeffrey R. Fuhr, H R. Felrice
This is version 1.0 of the National Institute of Standards and Technology (NIST) bibliographic database on atomic spectral line broadening. At present, this database contains approximately 800 recent references, all collected after our last published

Atomic Transition Rates for Neutral Holmium (Ho I)

October 16, 2008
Author(s)
Gillian Nave
Transition rates for 325 lines of Ho I are presented. They have been measured by combining branching fractions obtained by Fourier transform spectrometry with published lifetimes. The uncertainty of the transition rates is 5 % to 10 %.

Audit Trail Device Security [Product Storyboard]

October 16, 2008
Author(s)
Juana Williams
Increasingly, weighing and measuring device manufacturers choose the audit trail as the form of security for their equipment. Features that control the accuracy of measurements (metrological), or can be selected to make a device function properly for a

Automated Monitoring of Thin Film Properties via Ultrasonics

October 16, 2008
Author(s)
Donald L. Hunston
Non-destructively monitoring of the properties in a thin film or layered material (coatings, adhesives, etc.) is a difficult challenge, and yet there are many instances where this would be useful: fabrication (curing or drying), environmental attack, aging
Displaying 29501 - 29525 of 73829
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