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Journals

30 Years of Newest Vertex Bisection

June 23, 2016

Author(s)

William F. Mitchell

One aspect of adaptive mesh refinement in the finite element method for solving partial differential equations is the method by which elements are refined. In...

The Persistence of Illicit Drug Smoke Residues and their Recovery from Common Household Surfaces

June 22, 2016

Author(s)

Julie L. Bitter

Third hand smoke (THS) is the residue left remaining on surfaces during smoking events, and is composed of particles and vapors that form upon heating. The...

Near-theoretical fracture strengths in native and oxidized silicon nanowires

June 21, 2016

Author(s)

Frank W. DelRio, Ryan M. White, Sergiy Krylyuk, Albert Davydov, Lawrence H. Friedman, Robert F. Cook

In this letter, fracture strengths σf of native and oxidized silicon nanowires (SiNWs) were determined via atomic force microscopy bending experiments and...

Crystal Chemistry and Phase Equilibria of the CaO-¿Eu2O3-CoOz System at 885 °C

June 21, 2016

Author(s)

Winnie K. Wong-Ng, William J. Laws, James A. Kaduk

The CaO-¿Eu2O3-CoOz system prepared at 885 °C in air consists of two calcium cobaltate compounds, namely, the 2D thermoelectric oxide solid solution, (Ca3-xEux...

A precise instrument to determine the Planck constant, and the future kilogram

June 21, 2016

Author(s)

Darine El Haddad, Frank C. Seifert, Leon S. Chao, David B. Newell, Jon R. Pratt, Carl J. Williams, Stephan Schlamminger, Shisong Li

A precise instrument, called a watt balance, compares mechanical power measured in terms of the meter, the second and the kilogram to electrical power measured...

The Present Status and Future Growth of Maintenance in U.S. Manufacturing: Results from a Pilot Survey

June 20, 2016

Author(s)

Xiaoning Jin, David Siegel, Brian Weiss, Ellen Gamel, Wei Wang, Ni Jun

A research study was conducted 1) to examine the practices employed by U.S. manufacturers to achieve productivity goals and 2) to understand what level of...

Atomic structural evolution during the reduction of α-Fe2O3 nanowires

June 20, 2016

Author(s)

Wenhui Zhu, Jonathan P. Winterstein, Itai Maimon, Qiyue Yin, Lu Yuan, Aleksey N. Kolmogorov, Renu Sharma, Guangwen Zhou

The atomic-scale reduction mechanism of α-Fe2O3 nanowires by H2 was followed using transmission electron microscopy to reveal the evolution of atomic structures...

Nanomaterials in the aquatic environment: An EU-USA perspective on the status of ecotoxicity testing, research priorities and challenges ahead

June 19, 2016

Author(s)

Selck Henriette, Richard Handy, Teresa Fernandes, Stephen Klaine, Elijah Petersen

The US-EU Community of Research (CoR) was established in 2012 to provide a platform for scientists to develop a ‘shared repertoire of protocols and methods to...

Low Temperature Ionic Conductivity of an Acceptor Doped Perovskite Part I: Impedance Spectroscopy of Single Crystalline SrTiO3

June 18, 2016

Author(s)

Russell A. Maier

Low temperature conductivity mechanisms are identified in acceptor doped SrTiO3 single crystals quenched from high temperatures under reducing conditions...

Forming limit prediction using a self-consistent crystal plasticity framework: a case study for body-centered cubic materials

June 17, 2016

Author(s)

Youngung Jeong, Minh-Son Pham, Mark A. Iadicola, Adam A. Creuziger, Timothy J. Foecke

Kondo Effect in Magnetic Tunnel Junctions with an AIOx Tunnel Barrier

June 17, 2016

Author(s)

Chao Zheng, Robert D. Shull, Andrew P. Chen, Philip Pong

The Kondo effect in magnetic tunnel junctions (MTJs) is a result of the spin-exchange interaction between magnetic impurities and the conduction electrons. The...

Microresonator Brillouin laser stabilization using a microfabricated rubidium cell

June 17, 2016

Author(s)

William Loh, Matthew T. Hummon, Holly Leopardi, Tara Fortier, Franklyn Quinlan, John Kitching, Scott Papp, Scott Diddams

We frequency stabilize the output of a miniature stimulated Brillouin scattering (SBS) laser to rubidium atoms in a microfabricated cell to realize a laser...

Low Temperature Ionic Conductivity of an Acceptor Doped Perovskite Part II: Impedance Spectroscopy of Single Crystalline BaTiO3

June 16, 2016

Author(s)

Russell A. Maier

Low temperature conductivity mechanisms are identified in acceptor doped BaTiO3 single crystals equilibrated and quenched from high temperature under different...

Josephson Arbitrary Waveform Synthesizer with Two Layers of Wilkinson Dividers and an FIR Filter

June 16, 2016

Author(s)

Nathan E. Flowers-Jacobs, Steven B. Waltman, Anna E. Fox, Paul D. Dresselhaus, Samuel P. Benz

The output voltage of Josephson arbitrary waveform synthesizers (JAWS) has been limited by the number of Josephson junctions (JJs) that can be driven by a...

Thermoelectric properties of monolayer armchair MoS2 nanoribbons

June 16, 2016

Author(s)

Abbas Arab, Albert Davydov, Dimitrios A. Papaconstantopoulos, Qiliang Li

First-principle calculations have been performed to study thermoelectric properties of monolayer armchair nanoribbons. Structures have been relaxed to minimize...

Hydrodynamic Radius Fluctuations in Model DNA-Grafted Nanoparticles

June 16, 2016

Author(s)

Luis Fernando Vargas Lara, Francis W. Starr, Jack F. Douglas

We utilize molecular dynamics simulations (MD) and the path-integration program ZENO to quantify hydrodynamic radius (Rh) fluctuations of spherical symmetric...

Quantifying the Heterogeneous Dynamics of a Simulated Dipalmitoylphosphatidylcholine (DPPC) Membrane

June 16, 2016

Author(s)

Jack F. Douglas, Neha Shafique, Francis W. Starr

Cell membranes, composed primarily of lipid bilayers, are dynamically active structures. While the relationship between heterogeneity of dynamics and biological...

Quantification of Organic Porosity and Water Accessibility in Marcellus Shale using Neutron Scattering

June 16, 2016

Author(s)

Xin Gu, David F. Mildner, David R. Cole, Gernot Rother, Rudy Slingerland, Susan L. Brantley

Pores within organic matter (OM) in gas shales a significant component of the pore system. These pores contribute most of the storage capacity and effective...

Neutron Polarization Analysis for Biphasic Solvent Extraction Systems

June 16, 2016

Author(s)

Ryuhei Motokawa, Hitoshi Endo, Michihiro Nagao, William T. Heller

We performed neutron polarization analysis (NPA) of extracted organic phases containing complexes, comprised of Zr(NO 3( 4 and tri-n-butyl phosphate (TBP), to...

Continuous-feed optical sorting of aerosol particles

June 15, 2016

Author(s)

John J. Curry, Zachary H. Levine

We consider the problem of sorting, by size, spherical particles of order 100 nm radius. The scheme we analyze consists of a heterogeneous stream of spherical...

Quantum spin dynamics and entanglement generation with hundreds of trapped ions

June 15, 2016

Author(s)

Justin G. Bohnet, Brian C. Sawyer, Joseph W. Britton, Michael L. Wall, A M. Rey, Michael S. Foss-Feig, John J. Bollinger

Quantum simulation of spin models can provide insights into a variety of hard problems, including the competition between entanglement and decoherence in open...

Low Helium Permeation Cells for Atomic Microsystems Technology

June 15, 2016

Author(s)

Argyrios Dellis, Shah Vishal, Elizabeth A. Donley, Svenja A. Knappe, John E. Kitching

The miniaturization of instruments and sensors based on laser-cooled atoms is hindered by the large pumps needed to maintain the vacuum requirements. A...

Contact resistance and phase slips in mesoscopic superfluid atom transport

June 15, 2016

Author(s)

Stephen Eckel, Jeffrey Lee, Fred Jendrejewski, Christopher Lobb, Gretchen K. Campbell, Wendell Hill

We have experimentally measured both resistive flow and superflow with bosonic atoms in a mesoscopic transport experiment. Our system, consisting of two Bose...

Collapse Prevention Seismic Performance Assessment of New Eccentrically Braced Frames using ASCE 41

June 15, 2016

Author(s)

Matthew S. Speicher, John L. Harris

This paper presents the results of a seismic performance assessment using ASCE 41-06 for six eccentrically braced frames (EBFs) designed in accordance with the...

Efficient and Robust Optimization for building energy simulation

June 15, 2016

Author(s)

Shokouh Pourarian, Jin Wen, Anthony J. Kearsley, Amanda Pertzborn

Efficiently, robustly and accurately solving large sets of structured, non-linear algebraic and differential equations is one of the most computationally...

Strain-assisted magnetization reversal in Co/Ni multilayers with perpendicular magnetic anisotropy

June 14, 2016

Author(s)

Daniel B. Gopman, Cindi L. Dennis, Andrew P. Chen, Yury Y. Iunin, Peter Finkel, Margo Staruch, Robert D. Shull

Multifunctional materials composed of ultrathin magnetic films with perpendicular magnetic anisotropy combined with ferroelectric substrates represent a new...

Identification of novel N-glycosylation sites at non-canonical protein consensus motifs

June 14, 2016

Author(s)

Mark S. Lowenthal, Kiersta S. Davis, Lisa E. Kilpatrick, Catherine A. Mouchahoir, Karen W. Phinney

N-glycosylation is well known to occur at asparagine residues in the canonical consensus sequence N-X-S/T, but has also been identified at a small number of N-X...

Precision measurement of the radiative beta decay of the free neutron

June 14, 2016

Author(s)

Jeffrey S. Nico, Kevin J. Coakley, Maynard S. Dewey, Thomas R. Gentile, Hans P. Mumm, Alan Keith Thompson, M J. Bales, R. Alarcon, C. D. Bass, E J. Beise, H Breuer, Jim Byrne, R L. Cooper, B. O'Neill, F E. Wietfeldt, T E. Chupp

The theory of quantum electrodynamics predicts that a continuous spectrum of photons is emitted in the beta decay of the free neutron in addition to a proton...

Simultaneous Use of Cs and Rb Rydberg Atoms for Dipole Moment Assessment and RF Electric Field Measurements via Electromagnetically Induced Transparency

June 14, 2016

Author(s)

Christopher L. Holloway, Matthew T. Simons, Joshua A. Gordon

We demonstrate simultaneous electromagnetically-induced transparency (EIT) with cesium and rubidium Rydberg atoms in the same vapor cell with coincident...

Standards for cell line authentication and beyond

June 14, 2016

Author(s)

Jamie L. Almeida, Kenneth D. Cole, Anne L. Plant

Different genomic technologies have been applied to cell line authentication, but only one method (short tandem repeat profiling) has been the subject of a...

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