Journals

Interface-State Capture Cross Section Why Does It Vary So Much?

April 20, 2015

Author(s)

Jason T. Ryan, Asahiko Matsuda, Jason P. Campbell, Kin P. Cheung

A capture cross section value is often assigned to Si-SiO2 interface defects. Using a kinetic variation of the charge pumping technique and transition state...

On-Fiber Plasmonic Interferometer for Multi-Parameter Sensing

April 20, 2015

Author(s)

Zhijian Zhang, Yongyao Chen, Haijun H. Liu, Hyungdae Bae, Douglas A. Olson, Miao Yu

We demonstrate a novel miniature multi-parameter sensing device based on a plasmonic interferometer fabricated on a fiber facet in the optical communication...

Optimization of collisional Feshbach cooling of an ultracold non degenerate gas

April 20, 2015

Author(s)

Marlon Nuske, L. Mathey, Eite Tiesinga

We optimize a collision-induced cooling process for ultracold atoms in the nondegenerate regime. It makes use of a Feshbach resonance, instead of rf radiation...

Using cytochrome P4501A1 expression in liver and blubber to understand effects of persistent organic pollutant exposure in stranded Pacific Island cetaceans

April 18, 2015

Author(s)

Melannie J. Bachman, Jennifer M. Lynch, Kerry Foltz, Kristi West, Brenda Jensen

Elevated levels of persistent organic pollutants (POPs) have been reported in tropical Pacific Island cetaceans and their environment. In addition, recent...

Single-Chain Conformation for Interacting Poly(N-Isopropylacrylamide) in Aqueous Solution

April 18, 2015

Author(s)

Boualem Hammouda, Di Jia, He Cheng

The demixing phase behavior of Poly(N-Isopropylacrylamide) (PNIPAM) semi-dilute aqueous solution is investigated using small-angle neutron scattering. This...

Final report on VAMAS round-robin study to evaluate a correction method for saturation effect in DSIMS

April 17, 2015

Author(s)

David S. Simons, Akio Takano

A VAMAS round robin test (RRT) has been conducted to evaluate the linearity of the instrumental intensity scale and correction method using an approximation...

The strong influence of internal stresses on the nucleation of a nanosized, deeply undercooled melt at a solid-solid interface

April 17, 2015

Author(s)

Kasra Momeni, Valery I. Levitas, James A. Warren

The effect of elastic energy on nucleation and disappearance of a nanometer size intermediate melt (IM) region at a solid-solid (S1S2) interface at...

Origin of the Crossover Between a Freezing and a Structural Transition at Low Concentration in the Relaxor Ferroelectric K_1-xLI_xTaO₃

April 16, 2015

Author(s)

Ling Cai, Jean Toulouse, Leland Harriger, Robert Gregory Downing, Lynn A. Boatner

The origin of the relaxor behavior in K 1-xLi xTaO 3(KLT) and other disordered perovskites has long been recognized as due to the reorientation of the polar...

Template-Polymer Commensurability and Directed Self-Assembly Block Copolymer Lithography

April 15, 2015

Author(s)

Daniel F. Sunday, Regis J. Kline, Elizabeth Ashley, Lei Wan, Kaniyal Patel, Ricardo Ruiz

The directed self assembly (DSA) of block copolymers (BCPs) is being explored for lithographic patterning of features between 5 nm and 50 nm. The...

D90: The strongest contributor to setting time in MTA and Portland Cement

April 15, 2015

Author(s)

William Ha, Dale P. Bentz, Wyatt Kahler, Laurence Walsh

Introduction: The setting times of commercial mineral trioxide aggregate (MTA) and Portland cements vary. It was hypothesized that much of this variation was...

InChI, the IUPAC International Chemical Identifier

April 15, 2015

Author(s)

Stephen R. Heller, Alan McNaught, Igor Pletnev, Stephen Stein, Dmitrii Tchekhovskoi

This paper documents the design, layout and algorithms of the IUPAC International Chemical Identifier, InChI.

Quantitative Structure-Property Relationship Predictions of Critical Properties and Acentric Factors for Pure Compounds

April 14, 2015

Author(s)

Wendy H. Carande, Andrei F. Kazakov, Chris D. Muzny, Michael D. Frenkel

Knowledge of vapor-liquid equilibrium properties (such as critical constants and phase boundary pressure) is essential to understanding thermodynamic behavior...

How Large Can We Go? Isolation of >1 nm Diameter Single-Wall Carbon Nanotubes Species using Aqueous Two Phase Extraction

April 14, 2015

Author(s)

Jeffrey A. Fagan, Erik Haroz, Rachelle Ihly, Hui Gui, Jeffrey Blackburn, Jeffrey R. Simpson, Stephen K. Doorn, Stephanie Lam, Angela R. Hight Walker, Ming Zheng

We demonstrate the effective separation of near-monochiral single-wall carbon nanotube (SWCNT) species with diameters > 1 nm through multi-stage aqueous two...

The Art in Science of MicroTAS: the 2014 issue

April 14, 2015

Author(s)

Darwin R. Reyes-Hernandez

For the 7th year in a row the Art in Science award competition, sponsored by Lab on a Chip and the National Institute of Standards and Technology (NIST), took...

Quantifying the Degradation of TNT and RDX in a Saline Environment with and without UV-Exposure

April 14, 2015

Author(s)

Edward Sisco, Marcela N. Najarro, Candice Bridge, Roman Aranda

Terrorist attacks in a maritime setting, such as the bombing of the USS Cole in 2000, or the detection of underwater mines requires the development of proper...

Biexciton formation and exciton coherent coupling in layered GaSe

April 14, 2015

Author(s)

Prasenjit Dey, Jagannath Paul, Galan Moody, Christopher Stevens, Neil Glikin, Zakhar Kovalyuk, Zakhar Kudrynskyi, Aldo Romero, Andres Cantarero, David Hilton

Nonlinear two-dimensional Fourier transform (2DFT) and linear absorption spectra of layered GaSe exhibit two peaks at the direct 1s exciton energy. The doublet...

Effect of Solution Shearing Method on Packing and Disorder of Organic Semiconductor Polymers

April 14, 2015

Author(s)

Gaurav Giri, Dean DeLongchamp, Julia Reinspach, Lee J. Richter, Daniel A. Fischer, Jie Xu, Stephanie Benight, Alex Ayzner, Michael F. Toney, Zhenan Bao

Nearly-linear light cones in long-range interacting quantum systems

April 13, 2015

Author(s)

Michael S. Foss-Feig, Zhexuan Gong, Charles W. Clark, Alexey V. Gorshkov

In non-relativistic quantum theories with short-range Hamiltonians, a velocity $v$ can be chosen such that the influence of any local perturbation is...

An Analysis of the Use of a Collaboration Tool in the Intelligence Community

April 13, 2015

Author(s)

Jean C. Scholtz, Emile L. Morse, Michelle P. Steves

In this paper we present a broad look at the use of Groove as a collaboration tool in the analytic community. This work was carried out through the Research...

Assembling a complex quantum ensemble

April 10, 2015

Author(s)

Ian B. Spielman

Statistical mechanics provides a systematic approach for predicting the behavior of systems when only partial information is present. The key assumption...

Light shifts in a pulsed cold-atom coherent-population-trapping clock

April 10, 2015

Author(s)

Eric M. Blanshan, Elizabeth A. Donley, John E. Kitching

Field-grade atomic clocks capable of primary standard performance in compact physics packages would be of significant value in a variety of applications. A cold...

Direct correlation of charge transfer absorption with molecular donor:acceptor interfacial area via photothermal deflection spectroscopy

April 9, 2015

Author(s)

Lee J. Richter, Dean M. DeLongchamp, Natalie Stingelin, Alberto Salleo, Martin Heeney, Aram Amassian, John deMello, James Bannock, Fiona H. Scholes, Scott Watkins, Zhuping Fei, Koen Vandewal

ABSTRACT: Here, we show that the Charge Transfer (CT) absorption signal in bulk (BHJ) solar cell blends, measured by photothermal deflection spectroscopy (PDS)...

Reconstruction of Conditional Expectations from Product Moments with Applications

April 9, 2015

Author(s)

Robert C. Hagwood

Regression calibration is a method for fitting models when the independent variable X is measured with error. In regression calibration, the noisy independent...

Trace detection and competitive ionization of erythritol tetranitrate in mixtures using direct analysis in real time mass spectrometry

April 9, 2015

Author(s)

Thomas P. Forbes, Edward R. Sisco

Direct analysis in real time (DART) mass spectrometry was used for trace detection of the nitrate ester explosive, erythritol tetranitrate (ETN), and its sugar...

Forensic methodology for the thermochemical characterization of ANNM and ANFO mixture homemade explosives

April 9, 2015

Author(s)

Ashot Nazarian, Cary Presser

Experimental measurements were carried out using a novel laser-heating technique with the most commonly used HME mixture materials, i.e., ammonium nitrate...

Dimensional Metrology of Lab on a Chip Internal Structures: a Comparison of Optical Coherence Tomography with Coherence Fluorescence Microscopy

April 8, 2015

Author(s)

Darwin R. Reyes-Hernandez, Michael W. Halter, Jeeseong Hwang

The characterization of internal structures in a polymeric device, specifically of a final product, will require a different set of metrology techniques than...

Investigation of lead and cadmium in counterfeit cigarettes seized in the United States

April 8, 2015

Author(s)

Yi He, Klaus von Lampe, Laura J. Wood, Marin Kurti

The information on the content of toxic elements of lead (Pb) and cadmium (Cd) in counterfeit cigarettes offers insight of the potential impact of consuming...

Reply to "Comment on Origin of Surface Canting within Fe₃O₄ Nanoparticles

April 7, 2015

Author(s)

Kathryn L. Krycka, Julie A. Borchers, R. A. Booth, S. A. Majetick, Y. Ijiri, K. Hasz, J. J. Rhyne

Elemental characterization of Single-Wall Carbon Nanotube (SWCNT-1) reference material by neutron and prompt gamma activation analysis

April 7, 2015

Author(s)

Rick L. Paul, Rabia Oflaz, Jan Kucera, J W Bennett, E. A. De Nadai Fernandes, M. Kubesova, M. A. Bacchi, A. J. Stopic, R. E. Sturgeon, P. Grinberg

Instrumental neutron activation analysis with both relative and k0 standardization was used in four experienced laboratories to determine element mass fractions...

Quantum many-body models with cold atoms coupled to photonic crystals

April 6, 2015

Author(s)

James S. Douglas, Hessam Habibian, C.-L. Hung, Alexey Gorshkov, H J. Kimble, Darrick E. Chang