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Invited Review Article: The statistical modeling of atomic clocks and the design of time scales

February 23, 2012

Author(s)

Judah Levine

I will show how the statistical models that are used to describe the performance of atomic clocks are derived from their internal design. These statistical models form the basis for time scales, which are used to define international time scales such as

Invited Review Article: The uncertainty in the realization and dissemination of the SI second from a systems point of view

February 23, 2012

Author(s)

Thomas E. Parker

The uncertainty in the realization and dissemination of the SI second is determined by the characteristics of three major components: (1) the primary frequency standards themselves, (2) the time scale fly wheels that provide a continuously present

Thermoelectric Properties and Structural Variations in Bi2Te3-xSx Crystals

February 23, 2012

Author(s)

Winnie K. Wong-Ng, Howard Joress, Joshua B. Martin, Peter Zavalij, Yonggao Y. Yan, Jihui Yang

We have successfully correlated the thermoelectric properties, structure and compositional variations of a Bi2Te3-xSx single crystal using a custom-designed, non-destructive, high-throughput Seebeck coefficient screening tool, together with a single

Layer-by-Layer Assembly of Flame Retardant Coatings for Foam and Fabric. Final Report.

February 22, 2012

Author(s)

Jaime C. Grunlan

The accomplishments of the project are summarized in three published studies, which follow this abstract and constitute this final report. The studies use layer by layer assembly methods to investigate material flammability. In the first study, entitled,

An atomic interface between microwave and optical photons

February 22, 2012

Author(s)

Mohammad Hafezi, Zaeill Kim, Steven L. Rolston, Luis A. Orozco, Benjamin Lev, Jacob M. Taylor

A complete physical approach to quantum information requires a robust interface among flying qubits, long-lifetime memory and computational qubits. Here we present a unified interface for microwave and optical photons, potentially connecting engineerable

Fractional Diffusion, Low Exponent Levy Stable Laws, and Slow Motion Denoising of Helium Ion Microscope Nanoscale Imagery

February 22, 2012

Author(s)

Andras Vladar, Alfred S. Carasso

Helium ion microscopes (HIM) are capable of acquiring images with better than 1nm resolution, and HIM images are particularly rich in morphological surface details. However, such images are generally quite noisy. A major challenge is to denoise these

Modeling the Vapor Pressure of Biodiesel Fuels

February 22, 2012

Author(s)

O. Castellanos Diaz, F. Schoeggl, H.W. Yarranton, Marco Satyro, Tara Lovestead, Thomas J. Bruno

The composition, vapour pressure, and heat capacity of nine biodiesel fuels from different sources were measured. The vapour pressure of the biodiesel fuels is modeled assuming an ideal liquid phase of the fatty acid methyl esters constituting the fuel

NIST Technical Note 1735 LoopDA 3.0- Natural Ventilation Design and Analysis Software User Guide

February 22, 2012

Author(s)

William Dols, Steven Emmerich, Brian Polidoro

LoopDA 3.0 is an update to version 1.0 of the natural ventlation design tool developed by the Natural Institute of Standards and Technology. This software tool can be utilized to determine the size of natural ventilation openings necessary to provide a

Observation of vapor density enhancement of a rare-earth metal-halide in the temperature range relevant to metal-halide lamps

February 22, 2012

Author(s)

John J. Curry, E. G. Estupinan, W. P. Lapatovich, Albert Henins, S. D. Shastri

The total vapor-phase densities of Dy in equilibrium with a DyI$_3$/InI condensate and Tm in equilibrium with a TmI$_3$/TlI condensate have been measured for temperatures between 900 K and 1400 K. The measurements show strong enhancements in rare-earth

Pressure Dependence and Branching Ratios in the Decomposition of 1-Pentyl Radicals: Shock Tube Experiments and Master Equation Modeling

February 22, 2012

Author(s)

Iftikhar A. Awan, Donald R. Burgess Jr., Jeffrey A. Manion

The decomposition and intramolecular H-transfer isomerization reactions of the 1 pentyl radical have been studied at temperatures of 900 K to 1050 K and pressures of 0.8 bar to 6 bar using the single pulse shock tube technique and additionally investigated

Raman, FTIR, Photoacoustic-Infrared, and Inelastic Neutron Scattering Spectra of Ternary Metal Hydride Salts A 2 MH 5 , (A=Ca, Sr, Eu; Ir, Rh) and Their Deuterides

February 22, 2012

Author(s)

Mirela M. Barsan, Ian S Butler, Denis F. R. Gilson, Jr. Moyer, Wei Zhou, Hui Wu, Terrence J. Udovic

The Nature of BH 4 - Reorientations in Hexagonal LiBH 4 - Correction

February 22, 2012

Author(s)

Kristina Verdal, Terrence J. Udovic, John J. Rush

(NISTIR 7804) Technical Evaluation, Testing and Validation of the Usability of Electronic Health Records

February 21, 2012

Author(s)

Svetlana Z. Lowry, Matthew T. Quinn, Mala Ramaiah, Robert M. Schumacher, Emily S. Patterson, Robert North, Jiajie Zhang, Michael C. Gibbons, Patricia Abbott

Electronic Health Record (EHR) Usability Protocol (EUP) encompasses procedures for (1) expert evaluation of an EHR user interface from a clinical perspective and a human factors best practices perspective, and (2) validation studies of EHR user interfaces

Advanced communications
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