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Journals

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...

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...

A Robust and High-Throughput Measurement Platform for Monomer Reactivity Ratios from Surface-Initiated Polymerization

February 23, 2012

Author(s)

Kirt A. Page, Derek Patton, Emily Hoff, Michael J. Fasolka, Kathryn Beers

This article describes a robust approach to measure monomer reactivity ratios from surface-initiated copolymerization, by measuring composition of statistical...

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...

The Nature of BH₄- Reorientations in Hexagonal LiBH₄ - Correction

February 22, 2012

Author(s)

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

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...

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...

Raman, FTIR, Photoacoustic-Infrared, and Inelastic Neutron Scattering Spectra of Ternary Metal Hydride Salts A₂MH₅, (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

Confidence Intervals for Treatment Effect from Restricted Maximum Likelihood

February 21, 2012

Author(s)

Andrew L. Rukhin

Confidence intervals for the treatment effect in random effects meta-analysis model obtained from Harville-Jeske-Kenward-Roger approach are obtained in explicit...

Rippling Instability of Supported Polymer Nanolines

February 21, 2012

Author(s)

Vijaya R. Tirumala, Christopher M. Stafford, Leonidas E. Ocola, Jack F. Douglas, L. Mahadevan

The swelling response of polymer line gratings supported on a rigid substrate has direct implications on their mechanical stability during pattern transfer in...

Characterizing Equilibrium in Epitaxial Growth

February 20, 2012

Author(s)

Paul N. Patrone, Russel Caflisch, Dionisios Margetis

Using a kinetic model of epitaxial growth, we describe how geometry controls kinetic pathways through which external deposition influences the state of a...

Reduced microwave loss in trenched superconducting coplanar waveguides

February 20, 2012

Author(s)

Michael R. Vissers, Jeffrey S. Kline, Jiansong Gao, David S. Wisbey, David P. Pappas

Low loss TiN resonators were fabricated on 3" intrinsic Si substrates. By exploiting the etch rate anisotropy in a parallel plate reactive ion etch, otherwise...

Fiducial Prediction Intervals

February 18, 2012

Author(s)

Chih-Ming Wang, Jan Hannig, Hariharan K. Iyer

This paper presents an approach for constructing prediction intervals for any given distribution. The approach is based on the principle of fiducial inference...

Quantification of ligand packing density on gold nanoparticles using ICP-OES

February 18, 2012

Author(s)

Sherrie R. Elzey, De-Hao D. Tsai, Savelas A. Rabb, Lee L. Yu, Michael R. Winchester, Vincent A. Hackley

In this study, a prototypical thiolated organic ligand, 3-mercaptopropionic acid (MPA), was conjugated on gold nanoparticles (AuNPs), and packing density was...

Photoexcitation Dynamics in Nanolayered C60-Zinc Phthalocyanine Films

February 17, 2012

Author(s)

Paul A. Lane, Paul D. Cunningham, Joseph S. Melinger, J. P. Kushto, Okan Esenturk, Edwin J. Heilweil

We elucidate charge transfer and photoexcitation dynamics in C60 and zinc phthalocyanine (ZnPc) by transient and continuous wave spectroscopies. We identify an...

Fortified Foods with Vitamins: Analytical Concepts to Assure Better and Safer Products

February 16, 2012

Author(s)

Catherine Rimmer

TABLE ERRATA for Magnus, Oberhettinger & Soni (1966): Formulas and Theorems for the Special Functions of Mathematical Physics

February 16, 2012

Author(s)

Howard S. Cohl

A TABLE ERRATA is submitted concerning a formula in terms of a sum of two Gauss hypergeometric functions for Ferrers function of the second kind. This error...

In situ electrochemical small-angle neutron scattering (eSANS) for quantitative structure and redox properties of nanoparticles

February 16, 2012

Author(s)

Vivek M. Prabhu, Vytautas Reipa

Rapid growth in nanomaterial applications highlight limitations of available physicochemical characterization methods. An in situ electrochemical small-angle...

Reaction Network Governing Diphosphine-Protected Gold Nanocluster Formation from Nascent Cationic Platforms

February 16, 2012

Author(s)

John M. Pettibone, Jeffrey W. Hudgens

We identify the reaction network governing gold monolayer protected cluster (MPC) formation during the reduction of Au(PPh 3)Cl and L 5 (L 5 = 1,5-bis...

Spatial distribution of bottlenose dolphins (Tursiops truncatus) inferred from stable isotopes and priority organic pollutants

February 15, 2012

Author(s)

Rachel Wilson, John Kucklick, Brian C. Balmer, Randall Wells, Jeffery Chanton, Doug Nowacek

Differences in priority organic pollutants (POPs), analyzed by gas chromatography-mass spectrometry, and stable isotope ratios (δ¹³C, δ³⁴S, and δ¹⁵N; analyzed...

Penning traps with unitary architecture for storage of highly charged ions

February 15, 2012

Author(s)

Joseph N. Tan, Samuel M. Brewer, Nicholas D. Guise

Penning traps are made extremely compact by embedding rare-earth permanent magnets in the electrode structure. Axially-oriented NdFeB magnets are used to...

Features of the retinal environment which affect the activities and product profile of cholesterol-metabolizing CYP27A1 and CYP11A1

February 15, 2012

Author(s)

Illarion V. Turko, Gun-Young Heo, Wei-Li Liao, Irina A. Pikuleva

The retina is the sensory organ in the back of the eye which absorbs and converts the light to electrochemical impulses transferred to the brain. Herein, we...

Nanomechanical properties of polyethylene glycol brushes on gold substrates

February 15, 2012

Author(s)

Gheorghe NMN Stan, Frank W. DelRio, Robert I. MacCuspie, Robert F. Cook

Brushes of polyethylene glycol (PEG) were directly anchored onto bare gold substrates in solution. The nucleation kinetics of PEG binding were investigated...

Hyperspectral Image Projector Applications

February 15, 2012

Author(s)

Joseph P. Rice, Steven W. Brown, David W. Allen, Howard W. Yoon, Maritoni A. Litorja, Jeeseong Hwang

For the past several years NIST has been developing, along with several collaborators, a Hyperspectral Image Projector (HIP). This scene projector produces high...

Direct-comb molecular spectroscopy with accurate, resolved comb teeth over 43 THz

February 15, 2012

Author(s)

Alexander M. Zolot, Fabrizio R. Giorgetta, Esther Baumann, Jeffrey W. Nicholson, William C. Swann, Ian R. Coddington, Nathan R. Newbury

We demonstrate a dual comb spectrometer using stabilized frequency combs spanning 176 THz to 219 THz (1370 nm to 1700 nm) in the near infrared. Measurements of...

Comparison of hydrogen embrittlement in three pipeline steels in high pressure gaseous hydrogen environments

February 15, 2012

Author(s)

Nicholas Nanninga, Yaakov Levy, Elizabeth S. Drexler, Ryan Condon, April Stevenson, Andrew J. Slifka

The tensile properties of API-5L grades X52, X65, and X100 pipeline steels have been measured in a high pressure (13.8 MPa) hydrogen gas environment...

Viscoelastic Properties and Nanoscale Structures of Composite Oligopeptide-Polysaccharide Hydrogels

February 15, 2012

Author(s)

Laura L. Hyland, Marc B. Taraban, Yue Feng, Boualem Hammouda, Y. Bruce Yu

The main goal of thermoelectrics research is to optimize the charge and entropy flow separately in order to improve thermoelectric efficiency. Heavily doped...

Temperature Dependence of Structure and Density for D₂O Confined in MCM-41-S

February 15, 2012

Author(s)

William A. Kamitakahara, Antonio Faraone, Kao-Hsiang Liu, Chung-Yuan Mou

Using neutron diffraction, we have tracked the temperature dependence of structural properties for heavy water confined in the nanoporous silica matrix MCM-41-S...

Quantitative comparison of two independent lateral force calibration techniques for the atomic force microscope

February 15, 2012

Author(s)

Sarice S. Barkley, Zhao Z. Deng, Richard S. Gates, Mark Reitsma, Rachel J. Cannara

Two independent lateral force calibration methods for the atomic force microscope, the Hammerhead (HH) technique and the diamagnetic lateral force calibrator (D...

Direct observation of nucleation and early stages of growth of GaN nanowires

February 15, 2012

Author(s)

Rosa E. Diaz, Renu Sharma, Karalee Jarvis, Qinglei Zhang, Subhash Mahajan

We report for the first time direct observations of the nucleation and early stages of growth of GaN nanowires. The nanowires were formed by exposing Au + Ga...

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