Journals

Structural Changes in Block Copolymer Micelles Induced by Cosolvent Mixtures

May 23, 2011

Author(s)

Elizabeth G. Kelley, Thomas P. Smart, Andrew Jackson, Millicent O. Sullivan, Thomas H. Epps

The addition of tetrahydrofuran (THF) to aqueous solutions of poly(1,2-butadiene-b-ethylene oxide) [PBPEO] micelles decreased the core-corona interfacial

Subnanosecond Electro-optic Modulation of Triggered Single Photons from a Quantum Dot

May 23, 2011

Author(s)

Matthew T. Rakher, Kartik Srinivasan

Control of single photon wave-packets is an important resource for developing hybrid quantum systems which are composed of different physical systems

Temporal Correlation of Photons Following Frequency Up-conversion

May 23, 2011

Author(s)

Lijun Ma, Matthew T. Rakher, Martin Stevens, Oliver T. Slattery, Kartik Srinivasan, Xiao Tang

We demonstrate an approach to measure temporal correlations of photons in the near infrared range using frequency up-conversion. In this approach, the near

Effect of Initial Scarification and Overlay Treatment Timing on Chloride Concentrations in Concrete Bridge Decks

May 23, 2011

Author(s)

W. S. Guthrie, Curtis Nolan, Dale P. Bentz

Scarification and overlay (SO) procedures are often performed on concrete bridge decks to minimize the corrosion of reinforcing steel due to chloride ingress

Recent progress in spectroscopy of tungsten

May 20, 2011

Author(s)

Alexander Kramida

This contribution reviews experimental and theoretical work on spectroscopy of tungsten published since the last critical compilation of the energy levels and

Progress toward redetermining the Boltzmann constant with a fixed-path-length cylindrical resonator

May 20, 2011

Author(s)

Jin-Tao Zhang, H. Lin, X.J. Feng, J.P. Sun, Keith A. Gillis, Michael R. Moldover, Y.Y. Duan

We used a single, fixed-path-length cylindrical-cavity resonator to measure c 0 = (307.8252 ± 0.0012) m&#8226s −1, the zero-density limit of the speed of sound

Ontological Behavior Modeling

May 20, 2011

Author(s)

Conrad E. Bock, James Odell

This article gives an example of improving the effectiveness of behavior modeling languages using ontological techniques. The techniques are applied to

The Infrared Spectra of BF3+ and BF2OH+ Trapped in Solid Neon

May 20, 2011

Author(s)

Marilyn E. Jacox, Warren E. Thompson

Observations on a Ne:BF3 = 400:1 mixture into which a trace of normal or isotopically enriched water had been introduced, codeposited at 4.3 K with a beam of

Development of Standard Reference Materials for the Analysis of Dietary Supplements: The Story Continues

May 19, 2011

Author(s)

Katherine E. Sharpless, Lane C. Sander, Stephen A. Wise, A. NguyenPho, J. M. Betz

In 2004, we published an article in HerbalGram that described a collaboration among the National Institute of Standards and Technology (NIST), the National

Inter-ion Coulomb interactions in a Magneto-Optical Trap Ion Source

May 19, 2011

Author(s)

Jabez J. McClelland, Brenton J. Knuffman, Adam V. Steele

We have investigated the role played by inter-ion Coulomb interactions in a magneto-optical trap ion source (MOTIS). Using a Monte Carlo simulation accounting

Electrical Reliability Testing of Single-Walled Carbon Nanotube Networks

May 18, 2011

Author(s)

Mark C. Strus, Ann C. Chiaramonti Debay, Robert R. Keller, Yung J. Jung, Younglae Kim

We present test methods to investigate the electrical reliability of nanoscale lines of highly-aligned, networked, metallic/semiconducting single-walled carbon

Hyperbranched Poly(ethylene oxide) Electrolytes for Lithium Ion Batteries

May 17, 2011

Author(s)

Christopher L. Soles, Kirt A. Page, Huagen H. Peng

This work demonstrates the capability of hyper-branched PEO polymers to act as a polyelectrolyte for Li-ion batteries. Hyperbranching has been shown to lead to

Assessing microscale heterogeneity in batches of reference materials using microbeam XRF

May 17, 2011

Author(s)

John L. Molloy, John R. Sieber

Principal component analysis (PCA), microbeam X-ray Fluorescence Spectrometry (µXRF), and Monte Carlo simulations are used to illustrate a methodology for

Spatial dependence of output pulse delay in a niobium nitride nanowire superconducting single-photon detector

May 16, 2011

Author(s)

Sae Woo Nam, J. A. O'Connor, Michael Tanner, C. M. Natarajan, G. S. Buller, R. J. Warburton, S Miki, Z. Wang, Robert Hadfield

We report on the position-dependent variation in output pulse timing across a superconducting single- photon detector. Our device consists of a single niobium

Electronic transport in two dimensional graphene

May 16, 2011

Author(s)

Shaffique Adam, Sankar Das Sarma, Euyheon Hwang, Enrico Rossi

We provide a broad review of fundamental electronic properties of two-dimensional graphene with the emphasis on density and temperature dependent carrier

Usability and Accessibility in Consumer Health Informatics: Current Trends and Future Challenges

May 16, 2011

Author(s)

Larry Goldberg, Bettijoyce B. Lide, Svetlana Z. Lowry, Holly Massett, Whitney Quesenbery, Ben Schneiderman

People arrive at health applications with expectations from the rest of their lives and those expectations are rapidly rising. Beyond basic access to their own

Fabrication, characterization and simulation of high performance Si nanowire-based non-volatile memory cells

May 16, 2011

Author(s)

Xiaoxiao Zhu, Qiliang Li, D. E. Ioannou, Xuelei X. Liang, Diefeng Gu, Helmut Baumgart, John E. Bonevich, John S. Suehle, Curt A. Richter

We report the fabrication, characterization and simulation of Si nanowire SONOS-like non- volatile memory with HfO2 charge trapping layers of varying

Fabrication, Characterization and Simulation of High Performance Si Nanowire-based Non-Volatile Memory Cells

May 16, 2011

Author(s)

Xiaoxiao Zhu, Qiliang Li, D. E. Ioannou, Diefeng Gu, John E. Bonevich, Helmut Baumgart, John S. Suehle, Curt A. Richter

We report the fabrication, characterization and simulation of Si nanowire SONOS-like non-volatile memory with HfO2 charge trapping layers of varying thickness

Frequency-stabilized cavity ring-down spectroscopy measurements of carbon dioxide isotope ratios

May 15, 2011

Author(s)

Joseph T. Hodges, David A. Long, Mitchio Okumura, Charles E. Miller

Carbon dioxide (CO2) isotopic ratios were measured at 1.6 μm through the use of frequency-stabilized cavity ring-down spectroscopy (FS-CRDS). We report the

Reproducibility and Robustness of a Real-Time Microfluidic Cell Toxicity Assay

May 15, 2011

Author(s)

Gregory A. Cooksey, John T. Elliott, Anne L. Plant

Numerous opportunities exist to apply microfluidic technology to high-throughput and high-content cell-based assays. However, maximizing the value of these

Electromigration of Cu Interconnects Under AC and DC Test Conditions

May 15, 2011

Author(s)

Robert R. Keller, David T. Read, Roey Shaviv, Greg Harm, Sangita Kumari

Electromigration of a 65 nm technology generation test vehicle was measured using DC, AC followed by DC, and three rectangular wave DC stressing conditions at

Bottlenose Dolphins as Indicators of Persistent Organic Pollutants in Waters Along the US East and Gulf of Mexico Coasts

May 15, 2011

Author(s)

John R. Kucklick, Lori Schwacke, Randall S. Wells, Aleta Hohn, Aurore Guichard, Jennifer Yordy, Larry Hansen, Eric Zolman, Rachel Wilson, J. L. Litz, Doug Nowacek, Teresa Rowles, Rebecca S. Pugh, Brian C. Balmer, Carrie Sinclair, Patricia Rosel

Persistent organic pollutants (POPs) including legacy POPs (PCBs, chlordanes, mirex, DDTs, HCB, and dieldrin) and polybrominated diphenyl ether (PBDE) flame

The water-vapor continuum and selective absorption in the 3 to 5 micrometer spectral region at temperatures from 311 K to 363 K.

May 15, 2011

Author(s)

Yuri I. Baranov, Walter J. Lafferty

Experimental data on the water vapor continuum, which are based on pure H2O spectra recorded recently at NIST with a resolution of 0.1 cm-1, are presented. The

Amplification of the optical absorption cross section for aerosols of soot with a nonabsorbing coating from photoacoustic measurements

May 13, 2011

Author(s)

Pedro Bueno, Daniel K. Havey, George W. Mulholland, Joseph T. Hodges, Keith A. Gillis, Russell R. Dickerson, Michael R. Zachariah

A quantitative understanding of the absorption and scattering properties of mixed soot and aerosol particles is necessary for evaluating the Earth's energy

Binary amplitude holograms made from dyed photoresist

May 13, 2011

Author(s)

Quandou (. Wang, Ulf Griesmann, John H. Burnett

A method for fabricating binary amplitude holograms from a dyed photoresist is described. It is of particular interest for holograms that are used as null

Rotational Grain Boundaries in Graphene

May 12, 2011

Author(s)

Eric J. Cockayne, Gregory M. Rutter, N Guisinger, Jason Crain, Joseph A. Stroscio, Phillip First

Defects in graphene are of interest for their effect on electronic transport in this two-dimensional material. Point defects of typically two-fold and three

Recent developments in the NIST Atomic Databases

May 11, 2011

Author(s)

Alexander Kramida

New versions of the NIST Atomic Spectra Database (ASD, v. 4.0) and three bibliographic databases (Atomic Energy Levels and Spectra, v. 2.0, Atomic Transition

Simultaneous Solutions of Coupled Thermal Airflow Problem for Natural Ventilation in Buildings

May 11, 2011

Author(s)

Steven J. Emmerich, William S. Dols, Liangzhu (Leon) Wang

Natural and hybrid ventilation are sustainable building ventilation strategies, where airflow is driven naturally by thermal buoyancy and/or wind forces other

Semiclassical Boltzmann transport theory for graphene multilayers

May 11, 2011

Author(s)

Hongki Min, Parakh Jain, Shaffique Adam, Mark D. Stiles

We calculate the conductivity of arbitrarily stacked multilayer graphene sheets within a relaxation time approximation by considering both short-range and long

Phase-coherent detection of an optical dipole force by Doppler velocimetry

May 10, 2011

Author(s)

Michael J. Biercuk, Hermann Uys, Joseph W. Britton, Aaron Vandevender, John J. Bollinger

We report phase-coherent Doppler detection of optical dipole forces using large ion crystals in a Penning trap. The technique is based on laser Doppler