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Journals

Characterizing the Hemming Performance of Automotive Aluminum Alloys With High-Resolution Topographic Imaging

April 1, 2014

Author(s)

Mark R. Stoudt, Joseph B. Hubbard, John E. Carsley, Susan E. Hartfield-W?nsch

The hemming performances of two AA6xxx series aluminum automotive closure panel alloys were evaluated, with and without a 10 % tensile pre-strain, in a

Path Loss and Large-Scale Site and Frequency Diversity in Urban Peer-to-Peer Channels for Six Public Safety Frequency Bands

April 1, 2014

Author(s)

David W. Matolak, Christopher L. Holloway, Kate Remley, Qian Zhang, Qiong Wu

We report on peer-to-peer (ground-based) large scale wireless channel characteristics for an urban environment in six public safety bands, for five simultaneous

Color Error in the Digital Camera Image Capture Process

April 1, 2014

Author(s)

John Penczek, Paul A. Boynton, Jolene Splett

The color error of images taken by digital cameras is evaluated with respect to its sensitivity to the image capture conditions. A parametric study was

Advances in source technology for focused ion beam instruments

April 1, 2014

Author(s)

Noel Smith, John Notte, Adam V. Steele

Owing to the development of new ion source technology, users of focused ion beams (FIBs) have an increasingly wide array of uniquely capable platforms to choose

CO₂-Responsive Microemulsions Based on Reactive Ionic Liquids

April 1, 2014

Author(s)

Paul Brown, Matthew John Wasbrough, Burcu E. Gurkan, T. Alan Hatton

We demonstrate that the nanodomains within a ternary system consisting of oil, surfactant and a new reactive ionic liquid can be tuned reversibly upon exposure

N-methylmesoporphyrin IX fluorescence as a reporter of strand orientation in guanine quadruplexes

April 1, 2014

Author(s)

Navin C. Sabharwal, Victoria Savikhin, Joshua Turek-Herman, John M. Nicoludis, Veronika Szalai, Liliya Yatsunyk

Guanine quadruplexes (GQ) are four-stranded DNA structures formed by guanine-rich DNA sequences. Formation of GQs inhibits cancer cell survival, but detecting

Common-Path Method for Laser Tracker Ranging Calibration

March 31, 2014

Author(s)

Christopher J. Blackburn, Daniel S. Sawyer, Craig M. Shakarji

We present an alternative to the back-to-back method of testing laser tracker ranging systems. Our approach uses a common air path for both the measurement and

Hydrogen traps in the outgassing model of a stainless steel vacuum chamber

March 31, 2014

Author(s)

Robert F. Berg

This article describes a model for hydrogen outgassing into a stainless steel vacuum chamber. It accounts for the geometry of the chamber components, the

Determination of the Planck constant using a watt balance with a superconducting magnet system at the National Institute of Standards and Technology

March 31, 2014

Author(s)

Stephan Schlamminger, Darine El Haddad, Frank C. Seifert, Leon S. Chao, David B. Newell, Richard L. Steiner, Jon R. Pratt

In the past two years measurements were performed with a watt balance at the National Institute of Standards and Technology (NIST) to determine the Planck

Influence Of Sorbitol on Protein Crowding in Solution and Freeze-Concentrated Phases

March 31, 2014

Author(s)

Sheila Khodadadi, Nicholas James Clark, Arnold McAuley, Viviana Cristiglio, Joseph E. Curtis, Evgenyi Y. Shalaev, Susan T. Krueger

Protein stability during processing and storage is of great challenge for biotechnology and pharmaceutical industries. Polyhydroxy compounds are well-known cryo

Decrease in reflectance of vertically-aligned carbon nanotubes after oxygen plasma treatment

March 30, 2014

Author(s)

Nathan A. Tomlin, Alexandra Curtin, John H. Lehman, Malcolm G. White

Oxygen plasma treatment was used to lower the reflectance of multiwall vertically-aligned carbon nanotubes (VACNT). Specular reflectance measurements at an

Quantum-noise-limited cavity ring-down spectroscopy

March 29, 2014

Author(s)

David A. Long, Adam J. Fleisher, Szymon S. Wojtewicz, Joseph T. Hodges

Spectroscopic techniques with ultra-high sensitivity allow for the study of a wide variety of physical and chemical phenomena, ranging from the interrogation of

Spin Biochemistry Modulates Reactive Oxygen Species (ROS) Production by Radio Frequency Magnetic Fields

March 28, 2014

Author(s)

Robert J. Usselman

The effects of weak magnetic fields on the biological production of reactive oxygen species (ROS) from intracellular superoxide (O2−) and extracellular

Characterization of Emerging Ambient Pressure Mass Spectrometric Techniques using Time-of-Flight Secondary Ion Mass Spectrometry

March 28, 2014

Author(s)

Shinichiro Muramoto, Thomas P. Forbes, Matthew E. Staymates, John G. Gillen

Time-of-flight secondary ion mass spectrometry (ToF-SIMS) was used to characterize the desorption performance of two emerging ambient ionization mass

Potential artifacts when evaluating the ecotoxicological effects of nanomaterials

March 28, 2014

Author(s)

Elijah J. Petersen, Marina Dobrovolskaia, Theodore B. Henry, Jian Zhao, Robert I. MacCuspie, Teresa L. Kirschling, Baoshan Xing, Vincent A. Hackley, Jason White

Engineered nanomaterials (ENMs) have a significant commercial potential for ENM-enable products as a result of novel or enhanced properties. However, the unique

Thermoresponsive PNIPAAM Bottlebrush Polymers with Tailored Side-Chain Length and End-Group Structure

March 28, 2014

Author(s)

Xianyu Li, Hadi ShamsiJazeyi, Stacy L. Pesek, Aditya Agrawal, Boualem Hammouda, Rafael Verduzco

The effects of inter-micellar interactions on the dissociation of block copolymer micelles of polystyrene-b-polyisoprene in a selective solvent, decane, were

Determination of the Effective Transverse Coherence of the Neutron Wave Packet as Employed in Reflectivity Investigations of Condensed-Matter Structures. I. Measurements

March 27, 2014

Author(s)

Charles F. Majkrzak, Christopher Metting, Brian B. Maranville, Joseph A. Dura, Sushil K. Satija, Terrence J. Udovic, Norman F. Berk

The primary purpose of this investigation is to determine the effective coherent extent of the neutron wave packet transverse to its mean propagation vector k

The hyperfine Paschen-Back Faraday effect

March 26, 2014

Author(s)

Svenja A. Knappe, M.A. Zentile, Rebecca Andrews, L. Weller, C.S. Adams, I.G. Hughes

We investigate experimentally and theoretically the Faraday effect in an atomic medium in the hyperfine Paschen-Back regime, where the Zeeman interaction is

Tunable resonant and nonresonant interactions between a phase qubit and LC resonator

March 26, 2014

Author(s)

Michael S. Allman

We use a flux-biased radio frequency superconducting quantum interference device (rf SQUID) with an embedded flux-biased direct current SQUID to generate strong

Analysis of U.S Commercial Building Envelope Air Leakage Database to Support Sustainable Building Design

March 26, 2014

Author(s)

Steven J. Emmerich, Andrew K. Persily

In 1998, NIST published a review of commercial and institutional building airtightness data that found significant levels of air leakage and debunked the myth

Consideration of Envelope Airtightness in Modelling Commercial Building Energy Consumption

March 26, 2014

Author(s)

Lisa C. Ng, Andrew K. Persily, Steven J. Emmerich

As strategies for improving building envelope and HVAC equipment efficiencies are increasingly required to reduce building energy use, a greater percentage of

Tunable Resonant and Nonresonant Interactions between a Phase Qubit and LC Resonator

March 26, 2014

Author(s)

Michael S. Allman, Jed D. Whittaker, Manuel C. Castellanos Beltran, Katarina Cicak, Fabio C. Da Silva, Michael DeFeo, Florent Q. Lecocq, Adam J. Sirois, John D. Teufel, Jose A. Aumentado, Raymond W. Simmonds

We use a flux-biased radio frequency superconducting quantum interference device (rf SQUID) with an embedded flux-biased direct current SQUID to generate strong

Beyond the spin model approximation for Ramsey spectroscopy

March 26, 2014

Author(s)

A Koller, M Beverland, Alexey Gorshkov, Ana Maria Rey

Ramsey spectroscopy has become a powerful technique for probing non-equilibrium dynamics of internal (pseudospin) degrees of freedom of interacting systems. In

Dose calibrator manufacturer-dependent bias in assays of 123I

March 26, 2014

Author(s)

Denis E. Bergeron, Jeffrey T. Cessna, Daniel B. Golas, Rheannan K. Young, Brian E. Zimmerman

Calibration factors for commercial ionization chambers (i.e. dose calibrators) were determined for a solution of 123I; the activity was based on the 1976 NBS

Parametric pumping of precession modes in ferromagnetic nanodisks

March 26, 2014

Author(s)

Feng Guo, Lyubov Belova, Robert McMichael

We report parametric excitation of magnetic precession modes in nanodisks using a parallel pumping configuration. The excitations are detected using a

A quenched spinor Bose-Einstein Condensate: From U(1) to U(1)xZ₂

March 25, 2014

Author(s)

Ian B. Spielman, Subhadeep De, Daniel Campbell, Ryan Price, Andika Putra, Brandon Anderson

We explore the time evolution of quasi-1D two component Bose-Einstein condensates (BEC's) following a quench from a spin polarized gas with a ${\rm U}(1)$ order

Specimen-thickness effects on transmission Kikuchi patterns in the scanning electron microscope

March 24, 2014

Author(s)

Katherine P. Rice, Robert R. Keller, Mark Stoykovich

We report the effects of varying specimen thickness onthe generation of transmission Kikuchi patterns in the scanning electron microscope. Diffraction patterns

Interface scattering in polycrystalline thermoelectrics

March 24, 2014

Author(s)

Adrian Popescu, Paul M. Haney

We study the effect of electron and phonon interface scattering on the thermoelectric properties of disordered, polycrystalline materials (with grain sizes

Nonlinear Oscillations and Bifurcations in Silicon Photonic Microresonators

March 24, 2014

Author(s)

Daniel Abrams, Alex Slawik, Kartik Srinivasan

Storage Wars: How citrate capped silver nanoparticle suspensions are affected by not-so-trivial decisions

March 21, 2014

Author(s)

Justin M. Gorham, Anne B. Rohlfing, Katrice A. Lippa, Robert I. MacCuspie, Amy Hemmati, Richard D. Holbrook

A critical but often overlooked component of silver nanoparticle (AgNPs) suspensions involves their behavior following short- and long-term storage. The current

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