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Journals

Reduced Photoconductivity Observed by Time-Resolved Terahertz Spectroscopy in Metal Nanofilms with and without Adhesion Layers

May 29, 2016

Author(s)

Brian Alberding, Edwin J. Heilweil, Gary P. Kushto, Paul A. Lane

Time-resolved terahertz spectroscopy (TRTS) has been used to study the transient photoconductivity of nanometer-scale metallic films deposited on fused quartz...

Insights on Formal Methods of Cybersecurity

May 27, 2016

Author(s)

Jeffrey M. Voas, Kim B. Schaffer

We asked 7 experts 1 simple question to find out what has occurred recently in terms of applying formal methods (FM) to security-centric, cyber problems: Please...

Validation of Nonparametric Two-sample Bootstrap in ROC Analysis on Large Datasets

May 26, 2016

Author(s)

Jin Chu Wu, Alvin F. Martin, Raghu N. Kacker

The nonparametric two-sample bootstrap is applied to computing uncertainties of measures in receiver operating characteristic (ROC) analysis on large datasets...

Perspective: Compositionstructureproperty mapping in high-throughput experiments: Turning data into knowledge

May 26, 2016

Author(s)

Aaron G. Kusne, Jason Hattrick-Simpers, John Gregoire

With their ability to rapidly elucidate composition-structure-property relationships, high-throughput experimental studies have revolutionized how materials are...

Persistent organic pollutants in blood samples of Southern Giant Petrels (Macronectes giganteus) from the South Shetland Islands, Antarctica

May 26, 2016

Author(s)

Fernanda I. Colabuono, Stacy Schuur, Kevin Huncik, Satie Taniguchi, Petry V. Maria, John Kucklick, Rosalinda C. Montone

Seabirds play an important role as top consumers in the food web and can be used as biomonitors of exposure to pollutants. Contamination studies on seabirds...

Quadrupole Order in the Frustrated Pyrochlore Tb_2+xTi_2-xO_7+y

May 26, 2016

Author(s)

H. Takatsu, S. Onoda, S. Kittaka, A. Kasahara, Y. Kono, T. Sakakibara, Y. Kato, B. Fak, J. Ollivier, Jeffrey W. Lynn, T. Taniguchi, H. Kadowaki

A hidden order that emerges in the frustrated pyrochlore Tb 2+xTi 2-xO 7+y with X = 0.005 > x c is studied from specific heat and magnetization experiments on a...

Partial oxidation of step-bound water leads to anomalous pH effects on metal electrode step-edges

May 25, 2016

Author(s)

Kathleen Schwarz, Bingjun Xu, Yushan Yan, Ravishankar Sundararaman

The design of better heterogeneous catalysts for applications such as fuel cells and electrolyzers requires a mechanistic understanding of electrocatalytic...

Novel Dental Cement to Combat Biofilms and Reduce Acids for Orthodontic Applications to Avoid Enamel Demineralization

May 25, 2016

Author(s)

Ning Zhang, Mary A. Melo, Joseph M. Antonucci, Nancy Lin, Sheng Lin-Gibson, Yuxing Bai, Hockin H. Xu

Orthodontic treatments often lead to biofilm buildup and white spot lesions due to enamel demineralization. The objectives of this study were to develop a novel...

Visualizing Forensic Publication Impacts and Collaborations: Presenting at a Scientific Venue Leads to Increased Collaborations between Researchers and Information Professionals

May 24, 2016

Author(s)

Susan L. Makar, Amanda J. Malanowski, Kathleen A. Rapp

The Information Services Office (ISO) of the National Institute of Standards and Technology (NIST) proactively sought out an opportunity to present the findings...

A Comparison of the Gas-Phase Fire Retardant Action of DMMP and Br2 in Co-Flow Diffusion Flame Extinguishment

May 24, 2016

Author(s)

Gregory T. Linteris, Nicolas Bouvet, Valeri I. Babushok, Fumiaki Takahashi, Viswanath R. Katta, Roland Kraemer

Phosphorus-containing compounds are added to polymers as fire retardants, and they are believed to act in both the gas and solid phase. In gaseous flame studies...

Guidance for the Model User on Representing Human Behavior in Egress Models

May 24, 2016

Author(s)

Erica D. Kuligowski, Steve Gwynne, Michael Kinsey, Lynn Hulse

Structures are currently designed and constructed in accordance with prescriptive and performance-based (PBD) methodologies to ensure a certain level of safety...

Structural study of epitaxial LiCoO2 films grown by PLD on single crystal SrTiO3 substrates

May 24, 2016

Author(s)

Leonid A. Bendersky, Zhipeng Li, S. Yasui, Saya Takeuchi, Adam A. Creuziger, S. Maruyama, Andrew A. Herzing, I Takeuchi

Epitaxial LiCoO2 (LCO) thin films of different orientations were  fabricated by pulsed laser deposition (PLD) in order to model single-crystal  behavior of...

Oscillator metrology with software defined radio

May 24, 2016

Author(s)

Jeffrey A. Sherman, Robert Jordens

Analog electrical elements such as mixers, filters, transfer oscillators, isolating buffers, dividers, and even transmission lines contribute technical noise...

Development of surface chemical approaches for detection and characterization of multi-walled carbon nanotubes dispersed in a polymer composite

May 23, 2016

Author(s)

Justin M. Gorham, William A. Osborn, Jeremiah W. Woodcock, Jeffrey W. Gilman

Multi-walled carbon nanotubes (MWCNT) and other carbon nanofillers are used in different applications to enhance the materials and electrical properties of...

Structure Elucidation of Mixed-Linker Zeolitic Imidazolate Frameworks by Solid-State 1H CRAMPS NMR Spectroscopy and Computational Modeling

May 23, 2016

Author(s)

Ryan C. Nieuwendaal, Krishna Jayachandrababu, Ross Verploegh, Johannes Leisen, David Sholl, Sankar Nair

Mixed-linker zeolitic imidazolate frameworks (ZIFs) are nanoporous materials that exhibit continuous and controllable tunability of properties like effective...

k-asymmetric spin-splitting at the interface between transition metal ferromagnets and heavy metals.

May 23, 2016

Author(s)

Sergiy Grytsyuk, Abderrezak Belabbes, Paul M. Haney, Hyun-Woo Lee, Kyung Jin Lee, Mark D. Stiles, Udo Schwingenschlogl, Aurelien Manchon

We systematically investigate the spin-orbit coupling-induced band splitting originating from inversion symmetry breaking at the interface between a Co...

Physical Properties of the Ce₂MAl₇Ge₄ Heavy-Fermion Compounds (M = C0, Ir,Ni,Pd)

May 23, 2016

Author(s)

N. J. Ghimire, S. K. Cary, S. Eley, N. A. Wakeham, P. F. S. Rosa, T. Albrecht-Schmitt, Y. Lee, M. Janoschek, Craig Brown, L. Civale, J. D. Thompson, F. Ronning, E. D. Bauer

The synthesis, crystal structure and physical properties by means of single crystal x-ray diffraction, neutron powder diffraction, magnetic, thermal and...

Large-scale Time-lapse Microscopy of Oct4 Expression in Human Embryonic Stem Cell Colonies

May 22, 2016

Author(s)

Kiran Bhadriraju, Michael Halter, Julien M. Amelot, Peter Bajcsy, Joe Chalfoun, Antoine Vandecreme, Barbara Mallon, Kye-yoon Park, John T. Elliott, Subhash Sista, Anne L. Plant

Identification of critical characteristics of therapeutically active cells, and quantification of those characteristics, are essential for assuring consistency...

Large-scale Atomistic Simulations of Helium-3 Bubble Growth in Complex Palladium Alloys

May 21, 2016

Author(s)

Lucas M. Hale, Jonathan Zimmerman, Bryan Wong

Palladium is an attractive material for hydrogen and hydrogen-isotope storage applications due to its properties of large storage density and high diffusion of...

Single-particle-ICP-MS Advances

May 21, 2016

Author(s)

Antonio R. Montoro Bustos, Michael R. Winchester

Determining the core, corona, and total size of CdSeS/ZnS quantum dots by SEC/QELS and TEM

May 21, 2016

Author(s)

Leena M. Pitkanen, Andre Striegel

The size (hydrodynamic or Stokes radius, RH) of non-functionalized CdSeS/ZnS (core/shell) quantum dots (QDs) was characterized by size-exclusion chromatography...

Towards a dynamic pressure standard based on laser absorption spectroscopy

May 20, 2016

Author(s)

Kevin O. Douglass, Douglas A. Olson

We describe an approach for creating a cost-effective, field deployable dynamic pressure standard based on measurement of fundamental quantum properties of...

Single Molecule Detection of Heteropolytungstates and their Isomers in Solution With a Nanometer- scale Pore

May 20, 2016

Author(s)

Jessica H. Benjamini, John J. Kasianowicz, Arvind K. Balijepalli

We report a new technique to characterize poly- oxometalate (POM) structures at micromolar solution concentra- tion using single molecule nanopore-based...

Force Calibrations using Errors-in-Variables Regression and Monte Carlo Uncertainty Evaluations

May 20, 2016

Author(s)

Thomas W. Bartel, Sara Stoudt, Antonio M. Possolo

An errors-in-variables regression method is presented as an alternative to the ordinary least-squares regression computation currently employed for determining...

On Three decades of nanopore sequencing

May 20, 2016

Author(s)

John J. Kasianowicz, Sergey M. Bezrukov

Pore Chemistry and Size Control in Hybrid Porous Materials for Acetylene Capture from Ethylene

May 20, 2016

Author(s)

Xili Cui, Kaijie Chen, Huabin Xing, Qiwei Yang, Rajamani Krishna, Zongbi Bao, Hui Wu, Wei Zhou, Xinglong Dong, Yu Han, Bin Li, Qilong Ren, Michael J. Zaworotko, Banglin Chen

The trade-off between physical adsorption capacity and selectivity of porous materials is a major barrier for efficient gas separation and purification through...

Effective Spin-1⁄2 Scalar Chiral Order on Kagome Lattices in Nd₃Sb₃Mg₂O₁₄

May 20, 2016

Author(s)

A. Scheie, M. Sanders, J. Krizan, Yiming Qiu, R. J. Cava, Collin L. Broholm

We introduce Nd 3Sb 3Mg 2O 14 with ideal kagome lattices of neodymium ions in ABC stacking. Thermodynamic measurements show a Curie-Weiss temperature of θ cw =...

Geometrical pumping with a Bose-Einstein condensate

May 20, 2016

Author(s)

Lauren M. Aycock, Dina Genkina, Seiji Sugawa, Max Schemmer, Hsin I Lu, Ian Spielman

We realized a quantum "charge" pump for a Bose-Einstein condensate (BEC) in a novel bipartite magnetic lattice, whose bands are characterized by non-trivial...

Depletion-Driven Crystallization of Cubic Colloids Sedimented on a Surface

May 19, 2016

Author(s)

Harold W. Hatch, William P. Krekelberg, Steven D Hudson, Vincent K. Shen

Cubic colloids, sedimented on a surface and immersed in a solution of depletant molecules, were modeled with a family of shapes which smoothly varies from...

Interaction driven exotic quantum phases in spin-orbit coupled lattice spin¿1 bosons

May 19, 2016

Author(s)

Ian B. Spielman, Jedediah Pixley, Stefan Natu, Sankar Das Sarma

We study the interplay between large-spin, spin-orbit coupling, and superfluidity for bosons in a two dimensional optical lattice, focusing on the spin-1 spin...

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