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Journals

An Examination of Kernite (Na2B4O6(OH)2 3 H2O) Using X-ray and Electron Spectroscopies: Quantitative Microanalysis of a Hydrated Low-Z Mineral

April 14, 2011

Author(s)

Douglas C. Meier, Jeffrey M. Davis, Edward P. Vicenzi

Mineral borates, the primary industrial source of boron, are found in a large variety of compositions. One such source, kernite (Na2B4O6(OH)2 3 H2O), offers a...

Manipulating Interfacial Relaxations at Buried Interfaces in Polymer Coatings as Probed by Creep and Adhesion Measurements

April 14, 2011

Author(s)

Peter M. Johnson, John A. Howarter, Christopher Stafford

In this work, we use constant load indentation and cantilever peel of polymer films to measure relaxation events due to the chemical modification of a buried...

Estimating Common Parameters in Heterogeneous Random Effects Models

April 13, 2011

Author(s)

Andrew L. Rukhin

A question of fundamental importance for meta-analysis of heterogeneous data studies is how to form a best consensus estimator of common parameters, and what...

Differences in Polydimethylsiloxane Modification Methods Affect Laminin Deposition and Smooth Muscle Cell Proliferation

April 13, 2011

Author(s)

Joy P. Dunkers, Hae-Jeong Lee, Marvi Matos, Lisa Pakstis, Juan M. Taboas, Steven D. Hudson, Marcus T. Cicerone

When culturing cells on flexible surfaces, it is important to consider extracellular matrix treatments that will remain on the surface under mechanical strain...

A Route to Quantum Magnetism

April 13, 2011

Author(s)

Ian B. Spielman

The trend in using ultracold atoms as simulators of condensed-matter and many-body phenomena is gaining momentum. These systems can now be used to simulate...

Mechanical Response and Texture Evolution of AZ31 Alloy at Large Strains for Different Strain Rates and Temperatures

April 13, 2011

Author(s)

Akhtar S. Khan, Amit Pandey, Thomas H. Gnaupel-Herold, Raja K. Mishra

Reference Modulation for Calibrated Measurements of Tag Backscatter

April 12, 2011

Author(s)

Daniel G. Kuester, David R. Novotny, Jeffrey R. Guerrieri, Randy Direen, Zoya Popovic

This paper presents an active antenna designed to modulate the scattering of an interrogating wave in the 860-960 MHz UHF RFID band. The device can be...

Lithography, Metrology and Nanomanufacturing

April 12, 2011

Author(s)

James A. Liddle, Gregg M. Gallatin

Semiconductor chip manufacturing is by far the predominant nanomanufacturing technology in the world today. Top-down lithography techniques are used for...

Achieving 0.2 % Relative Expanded Uncertainty in Ion Chromatography Analysis using a High-Performance Methodology

April 12, 2011

Author(s)

Ryan G. Brennan, Therese A. Butler, Michael R. Winchester

A high-performance (HP) technique that was originally developed for inductively coupled plasma optical emission spectrometry (ICP-OES) has been successfully...

Interfacial effects on droplet dynamics in Poiseuille flow

April 12, 2011

Author(s)

Jonathan T. Schwalbe, Frederick R. Phelan Jr., Petia Vlahovska, Steven D. Hudson

Interfacial rheology governs many properties of emulsions, and here we report theory that accounts for and measure surface viscous and elastic forces. Stokes...

Fast Neutron Detection with Li-6-loaded Liquid Scintillator

April 12, 2011

Author(s)

David M. Gilliam, B Fisher, J N. Abdurashitov, Kevin Coakley, V N. Gavrin, Jeffrey S. Nico, A A. Shikhin, Alan Keith Thompson, Dominic F. Vecchia, V E. Yants

We report on the development of a fast neutron detector using a liquid scintillator doped with enriched 6Li. The lithium was introduced in the form of an...

Agile Test Framework for Business-to-Business Interoperability

April 12, 2011

Author(s)

Jungyub Woo, Nenad Ivezic, H Cho

Business-to-business (B2B) applications are tested routinely for conformance and interoperability against a set of data exchange standards before deployment...

Separation of Empty and Water-Filled Single-Wall Carbon Nanotubes

April 11, 2011

Author(s)

Jeffrey A. Fagan, Jeffrey R. Simpson, JiYeon Huh, Jeffrey Blackburn, Larsen A. Brian, Josh M. Holt, Angela R. Hight Walker

The separation of empty and water-filled laser ablation and electric arc synthesized nanotubes is reported. Centrifugation of these large-diameter nanotubes...

Modulus-Driven Differentiation of Marrow Stromal Cells in 3D Is Independent of Cytoskeletal Integrity

April 11, 2011

Author(s)

Carl G. Simon Jr., Kaushik Chatterjee, Sapun Parekh, Sheng Lin-Gibson, Nicole M. Moore, Marcus T. Cicerone, Marian F. Young

Cell functions such as proliferation, migration, and differentiation are key physiological processes that are influenced by the physiochemical extracellular...

Reduced Flammability of Polyurethane Foam Using a Carbon Nanofiber-based Multilayer Nanocoating

April 10, 2011

Author(s)

Yeon S. Kim, Rick D. Davis, Jaime C. Grunlan, Amanda A. Cain

For the first time, Layer-by-layer (LbL) assemblies made with carbon nanofiber (CNFs) are shown to improve the fire performance of polyurethane foam. The (359 ±...

Recent Advances in Electrochemical Glyco-biosensing

April 8, 2011

Author(s)

Rebecca A. Zangmeister, Germarie Sanchez-Pomales

Biosensors based on electrochemical transduction mechanisms have recently made advances into the field of glycan analysis. These glyco-biosensor assays offer...

Three Dimensionally Structured Interdigitated Back Contact Thin Film Heterojunction Solar Cells.

April 8, 2011

Author(s)

Carlos M. Hangarter, Behrang H. Hamadani, Jonathan E. Guyer, Hua Xu, Ryan F. Need, Daniel Josell

Three dimensionally structured thin film photovoltaic devices based on interdigitated arrays of microscale electrodes are examined. This geometry eliminates...

Three-Dimensionally Structured CdS/CdTe Photovoltaics on Dual Interdigitated Back-Contacts

April 8, 2011

Author(s)

Carlos M. Hangarter, Behrang Hamadani, Ryan F. Need, Carlos R. Beauchamp, Hua Xu, John E. Bonevich, Nikolai Zhitenev, Daniel Josell

The fabrication and properties of three-dimensionally structured CdS/CdTe solar cells with back-contacts are described. Fabrication entails electrodeposition of...

Feshbach spectroscopy and analysis of the interaction potentials of ultracold sodium

April 8, 2011

Author(s)

T. Schuster, R. Scelle, A. Trautmann, J. Appmeier, S. Knoop, Eite Tiesinga, E. Tiemann

We have studied magnetic Feshbach resonances in an ultracold sample of Na prepared in the absolute hyperfine ground. W e report on the observation of three s-...

Intermolecular potential energy surface and second virial coefficients for the water-CO2 dimer

April 7, 2011

Author(s)

Allan H. Harvey, Richard J. Wheatley

The first complete five-dimensional potential energy surface is calculated for the interaction of water and carbon dioxide, using second-order Møller-Plesset...

A Survey of Binary Covering Arrays

April 7, 2011

Author(s)

James F. Lawrence, Raghu N. Kacker, Yu Lei, David R. Kuhn, Michael Forbes

Two-valued covering arrays of strength t are 0--1 matrices having the property that for each t columns and each of the possible 2t sequences of t 0's and 1's...

NIST Tools for Quality Assurance in Botanical Dietary Supplement Measurements

April 7, 2011

Author(s)

Melissa M. Phillips

The accurate analysis of botanical dietary supplements presents significant challenges for the analytical laboratory. Analyte stability, extraction efficiency...

Validity of the thermal activation model for spin-transfer torque switching in magnetic tunnel junctions

April 6, 2011

Author(s)

Ranko R. Heindl, William H. Rippard, Stephen E. Russek, Matthew R. Pufall, Anthony B. Kos

We have performed spin transfer switching experiments on nanoscale MgO magnetic tunnel junctions, with a large number of trials (up to 107 switching events) as...

Correlation of Variations in Thermoelectric and Microstructural Properties of P-type CeFe4Sb12 Melt-Spun Ribbons Using a Rapid Screening Method

April 6, 2011

Author(s)

Yonggao Y. Yan, Winnie K. Wong-Ng, James A. Kaduk, Gangjian Tan, Wenjie Xie, Martin L. Green, Xinfeng Tang

We have demonstrated the effect of gradients in both phase composition and microstructure of p-type CeFe4Sb12 melt-spun (MS) ribbons on Seebeck coefficient by a...

Magnetic Phase Diagram of Gd₂Sn₂O₇

April 6, 2011

Author(s)

R. S. Freitas, Jason S. Gardner

We have studied the magnetic phase diagram of the Heisenberg pyrochlore antiferromagnet Gd 2Sn 2O 7. Low temperature magnetic susceptibility measurements, as a...

Spin Liquid State in the S = 1/2 Triangular Lattice Ba₃CuSb₂O₉

April 6, 2011

Author(s)

H. D. Zhou, E. S. Choi, G. Li, L. Balicas, C. R. Wiebe, Yiming Qiu, John R. Copley, Jason S. Gardner

Spin liquids remain one of the most important objects of study in modern solid state physics as model systems of quantum magnetism. In this paper, we report the...

Quantum critical behavior in the heavy Fermion single crystal Ce(Ni_0:935Pd_0:065)₂Ge₂

April 6, 2011

Author(s)

C.H. Wang, J .M. Lawrence, A. D. Christianson, Sung Chang, K. Gofryk, E. D. Bauer, F. Ronning, J. D. Thompson, K. J. McClellan, Jose Rodriguez Rivera, Jeffrey W. Lynn

From Electrons to Infrastructure: Engineering Concrete From The Bottom Up

April 6, 2011

Author(s)

Hamlin M. Jennings, Jeffrey W. Bullard

We argue that only an approach rooted in fundamental, mechanistic models of concrete materials offers a viable path for handling the enormous number of new...

Characterizing arbitrary CW waveforms with 1500 THz/s chirp rates

April 5, 2011

Author(s)

Ian R. Coddington, Fabrizio R. Giorgetta, Esther Baumann, William C. Swann, Nathan R. Newbury

A Dual frequency comb interferometer was constructed to monitor cw laser chirp rates exceeding 1500 THz/s with MHz level resolution and accuracy over a 3 THz...

Path-integral calculation of the third virial coefficient of quantum gases at low temperatures

April 5, 2011

Author(s)

Allan H. Harvey, Giovanni Garberoglio

We derive path-integral expressions for the second and third virial coefficients of monatomic quantum gases. Unlike previous work that considered only Boltzmann...

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