Journals

Avian mercury exposure and toxicological risk across western North America: a synthesis

October 15, 2016

Author(s)

Joshua T. Ackerman, Collin A. Eagles-Smith, Mark P. Herzog, Alex Hartman, Sarah Peterson, David C. Evers, Allyson Jackson, John E. Elliott, Stacy Schuur, Colleen E. Bryan Sallee

Methylmercury contamination of the environment is an important issue globally and birds are useful bioindicators for mercury monitoring programs. We synthesized

Determination of Functional Collective Motions in a Protein at Atomic Resolution using Coherent Neutron Scattering

October 14, 2016

Author(s)

Liang Hong, NItin Jain, Xiaolin Cheng, Ana Bernal, Madhu Sudan Tyagi, Jeremy C. Smith

Protein function often depends on global, collective internal motions. However, the simultaneous quantitative experimental determination of the forms

Adiabatic Optimization versus Diffusion Monte Carlo

October 13, 2016

Author(s)

Stephen P. Jordan, Michael Jarret, Brad Lackey

Most experimental and theoretical studies of adiabatic optimization use stoquastic Hamiltonians, whose ground states are expressible using only real nonnegative

Transmission Electron Microscope Calibration Methods for Critical Dimension Standards

October 13, 2016

Author(s)

Ndubuisi G. Orji, Ronald G. Dixson, Domingo I. Garcia-Gutierrez, Bunday Benjamin, M R. Bishop, Michael W. Cresswell, Richard A. Allen, John Allgair

One of the key challenges in critical dimension (CD) metrology is finding suitable dimensional calibration standards. The transmission electron microscope (TEM)

Identification of the Crystal Symmetry in 1T′ MoTe2 with Polarization-Resolved Second Harmonic Generation and Raman Scattering

October 13, 2016

Author(s)

Ryan Beams, Luiz Gustavo Cancado, Sergiy Krylyuk, Irina Kalish, Berc Kalanyan, Arunima Singh, Kamal Choudhary, Patrick Vora, Francesca M. Tavazza, Albert Davydov, Stephan J. Stranick

We study the crystal symmetry properties of few-layer 1T' MoTe2 using the polarization dependence of the second harmonic generation (SHG) and Raman scattering

Correction to Diesel Surrogate Fuels for Engine Testing and Chemical-Kinetic Modeling: Compositions and Properties

October 12, 2016

Author(s)

Charles J. Mueller, William J. Cannella, J. Timothy Bays, Thomas J. Bruno, Kathy DeFabio, Heather Dettman, Rafal M. Gieleciak, Marcia L. Huber, Chol-Bum M. Kweon, Steven S. McConnell, William J. Pitz, Matthew A. Ratcliff

This is an erratum to Energy Fuels, 2016, 30 (2), 1445-1461. DOI: 10.1021/acs.energyfuels.5b02879

Separation of bacteria, protozoa and carbon nanotubes by density gradient centrifugation

October 12, 2016

Author(s)

Monika Mortimer, Elijah Petersen, Bruce A. Buchholz, Patricia Holden

Sustainable production and use of carbon nanotube (CNT)-enabled materials requires efficient assessment of CNT environmental hazards, including their potential

Supramolecular Hemicage Cobalt Mediators for Efficient and Stable Dye-Sensitized Solar Cells

October 11, 2016

Author(s)

Lisa A. Fredin, Marina Freitag, Wenxing Yang, Luca D' Amario, K. Martin Karlsson, Anders Hagfeldt, Gerrit Boschloo

A new class of DSCs using the hemicage cobalt based mediator [Co(ttb)] 2+/3+ using the hexadentate ligand 5,5'',5''''-((2,4,6- triethyl highly preorganized

Synchronization of clocks through 12km of strongly turbulent air over a city

October 11, 2016

Author(s)

Laura C. Sinclair, William C. Swann, Hugo Bergeron, Esther Baumann, Michael A. Cermak, Ian R. Coddington, Jean-Daniel Deschenes, Fabrizio R. Giorgetta, Juan Juarez, Isaac H. Khader, Keith G. Petrillo, Katherine T. Souza, Michael L. Dennis, Nathan R. Newbury

We demonstrate real-time, femtosecond-level clock synchronization across a low-lying, strongly turbulent, 12-km horizontal air path by optical two-way time

Goniometric and hemispherical reflectance and transmittance measurements of fused silica diffusers

October 11, 2016

Author(s)

Paul Lemaillet, Heather Patrick, Thomas Germer, Leonard Hanssen, B. Carol Johnson, Georgi T. Georgiev

Fused silica diffusers, made by forming scattering centers inside fused silica glass, can exhibit desirable optical properties, such as reflectance or

Spectroscopic Characterization of the Ethyl Radical-Water Complex

October 10, 2016

Author(s)

Allan H. Laufer, Chen Lin, Brian A. Finney, Joseph M. Anglada, Joseph S. Francisco

A multi-year estimate of methane fluxes in Alaska from CARVE atmospheric observations

October 9, 2016

Author(s)

Anna Karion, Scot Miller, Anna Michalak, Rachel Chang, Steven Dinardo, Jakob Lindaas, Colm Sweeney, Roisin Commane

Methane (CH4) fluxes from Alaska and other arctic regions may be sensitive to thawing permafrost and future climate change, but estimates of both current and

Supramolecular Self-assembly of a Novel Hydrogelator: Characterization of Fiber Morphology and Formation and Thermal-Reversible Gelation

October 8, 2016

Author(s)

Jack F. Douglas, Yuan Gao Yuan Gao, Ryan C. Nieuwendaal, Emilios Dimitriadis, Boualem Hammouda, Bing Xu, Ferenc Horkay

Hydrogels are of intense recent interest in connection with biomedical applications ranging from 3-D cell cultures and stem cell differentiation to regenerative

Transfer Standard Uncertainty Can Cause Inconclusive Inter-Laboratory Comparisons

October 7, 2016

Author(s)

John D. Wright, Blaza Toman, Bodo Mickan, Gerd Wubbeler, Olha Bodnar, Clemens Elster

Inter-laboratory comparisons use the best available transfer standards to check the participants uncertainty analyses, identify underestimated uncertainty

Light Source Effects on Aerosol Photoacoustic Spectroscopy Measurements

October 6, 2016

Author(s)

James G. Radney, Christopher D. Zangmeister

Photoacoustic spectroscopy measurements of flame-generated soot aerosol coated with small amounts of water yielded absorption enhancements that were dependent

A Thin-Film Cryotron Suitable For Use as an Ultra-Low-Temperature Switch

October 6, 2016

Author(s)

Peter J. Lowell, John A. Mates, William B. Doriese, Gene C. Hilton, Kelsey M. Morgan, Daniel S. Swetz, Joel N. Ullom, Daniel R. Schmidt

Low-temperature superconducting circuits have become important in modern science. However, there are presently no high-current-capacity switches with low power

Classification of biodegradable materials using QSAR modeling with uncertainty estimation

October 6, 2016

Author(s)

Werickson Fortunato de Carvalho Rocha, David Sheen

The ability to determine the biodegradability of chemicals without resorting to expensive tests is ecologically and economically desirable. Models based on

Colloidal Properties and Stability of Aqueous Suspensions of Few Layer Graphene: Importance of Graphene Concentration

October 6, 2016

Author(s)

Yu Su, Elijah Petersen, Liang Mao

Understanding the agglomeration behaviors and stability of graphene in natural waters is essential for predicting its transport and fate in aquatic environments

(Magic Dopant) Amphoteric Behavior of a Redox-Active Transition Metal Ion in a Perovskite Lattice: New Insights on the Lattice Site Occupation of Manganese in SrTiO3

October 5, 2016

Author(s)

Russell A. Maier, Matthew P. Donohue

It is definitively shown for the first time that a transition metal, redox-active ion can exhibit amphoteric substitution in the SrTiO3 perovskite lattice. The

Measurement of powder bed density in powder bed fusion additive manufacturing processes

October 5, 2016

Author(s)

Gregor Jacob, M A. Donmez, Shawn P. Moylan, John A. Slotwinski

There are many factors influencing the additive manufacturing (AM) processes resulting in high degree of variation in process outcomes. Therefore, quantifying

High Rank Elliptic Curves with Torsion Z/4Z induced by Kihara's Curves

October 5, 2016

Author(s)

Foad Khoshnam, Dustin Moody

Working over the field Q(t), Kihara constructed an elliptic curve with torsion group Z/4Z and five independent rational points, showing the rank is at least

The rheo-Raman microscope: Simultaneous chemical, conformational, mechanical, and microstructural measures of soft materials

October 4, 2016

Author(s)

Anthony P. Kotula, Matthew Meyer, Francesca De Vito, Jan Plog, Angela R. Hight Walker, Kalman D. Migler

We describe the design and demonstrate performance of an instrument capable of simultaneous Raman spectroscopy, rheology, and optical microscopy of materials

An Activity Model for Factory Design and Improvement

October 4, 2016

Author(s)

Kiwook Jung, Sangsu Choi, Boonserm Kulvatunyou, Hyunbo Cho, Katherine C. Morris

Smart Manufacturing Systems (SMS) are envisioned to contain highly-automated and IT-driven production systems. To address the complexity that arises in such

Quantifying the impact of ionic liquid cations on the properties of cellulose nanocrystals

October 3, 2016

Author(s)

Jeffrey W. Gilman, Douglas M. Fox, Jeremiah W. Woodcock

Ionic liquids, and the novel cations and anions which they are comprised of, have been used to modify the properties of many classes of materials. This includes

Using Absorption Cross Section to Predict Coherence Bandwidth and other Characteristics of a Reverberation Chamber Set-up for Wireless System Tests

October 3, 2016

Author(s)

Catherine A. Remley, Jos Dortmans, Damir Senic, Chih-Ming Wang, Christopher L. Holloway

We present a method to predict the coherence bandwidth, delay spread and power transfer function of a reverberation chamber set-up. The method is based on the

Ionization potentials of superheavy elements No, Lr, and Rf and their ions

October 3, 2016

Author(s)

Vladimir A. Dzuba, M.S. Safronova, Ulyana I. Safronova, Alexander Kramida

We predict ionization potentials of superheavy elements No, Lr, and Rf and their ions using a relativistic hybrid method that combines con figuration

Determination of Closed Porosity in Rocks by Small-Angle Neuron Scattering

October 3, 2016

Author(s)

Jitendra Bahadur, Christian R. Medina, Lilin He, Yuri B. Melnichenko, John A. Rupp, Tomasz P. Blach, David F. Mildner

Small-angle neutron (SANS) and ultra small-angle neutron scattering (USANS) has been used to study a carbonate rock from a deep saline aquifer that is a

A Hierarchical Structure of Key Performance Indicators for Operation Improvement in Production Systems

October 3, 2016

Author(s)

Ningxuam Kang, Cong Zhao, Jingshan Li, John A. Horst

Key performance indicators (KPIs) are critical for manufacturing operation management (MOM) and continuous improvement (CI). In modern manufacturing systems

Introduction to CFTT and CFReDS Projects at NIST

October 3, 2016

Author(s)

Jungheum Park, James R. Lyle, Barbara Guttman

Along with the development and propagation of Information & Communication Technology (ICT), digital evidence becomes more common and crucial to solving various

Time in Cyber-Physical Systems

October 2, 2016

Author(s)

Marc A. Weiss, Sundeep Chandhoke, Hugh Melvin

Time is central to predicting, measuring and controlling properties of the physical world, and is one of the most important constraints distinguishing Cyber