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Journals

The Future of Forensic DNA Analysis

June 22, 2015

Author(s)

John M. Butler

The author's thoughts and opinions on where the field of forensic DNA testing is headed for the next decade are provided in the context of where the field has...

Cloud-Enabled Prognosis for Manufacturing

June 22, 2015

Author(s)

Robert Gao, Lihui Wang, Roberto Teti, David Dornfeld, Soundar Kumara, Masahiko Mori, Moneer Helu

Advanced manufacturing depends on the timely acquisition, distribution, and utilization of information from machines and processes across spatial boundaries for...

Copper-Substituted Iron Telluride: A Phase Diagram

June 22, 2015

Author(s)

Patrick N. Valdivia, Min Gyu Kim, Thomas R. Forrest, Zhijun Xu, Meng Wang, Hui Wu, Leland Harriger, Edith D. Bourret-Courchesne, Robert J. Birgeneau

Metal site alloying of the iron chalcogenides is known to give rise to bulk insulating states with no known analogue in the iron arsenide phase diagrams. We...

A Unifying Framework to Quantify the Effects of Boundary Stiffness, Polymer-Substrate Interactions and Substrate Roughness on the Dynamics of Thin Supported Polymer Films

June 21, 2015

Author(s)

Jack F. Douglas, Paul Hanakata, Francis W. Starr, Beatriz Betancourt

Changes in the dynamics of supported polymer films in comparison to bulk materials involve a complex convolution of effects, such as boundary thermodynamic...

Self Assembly of Magnetic Nanoparticles at Silicon Surfaces

June 21, 2015

Author(s)

Katharina Theis-Brohl, Philipp Gutfreund, Alexei Vorobiev, Max Wolff, Boris P. Toperverg, Joseph Dura, Julie Borchers

Neutron reflectometry was used to study the assembly of magnetite nanoparticles in a water-based ferrofluid close to a silicon surface, Under three conditions...

Experimental Measurement of the Effect of Copper Through-Silicon Via Diameter on Stress Buildup Using Synchrotron-based X-ray Source

June 20, 2015

Author(s)

Chukwudi A. Okoro, Lyle E. Levine, Yaw S. Obeng, Ruqing Xu

In this work, the effect of Cu through-silicon via (TSV) diameter on stress buildup in Cu TSVs was experimentally determined using synchrotron-based X-ray...

Histone H3 Ser57 and Thr58 Phosphorylation in 5XFAD Mouse Brain

June 20, 2015

Author(s)

Kyle W. Anderson, Illarion V. Turko, Natalia Mast, Irina A. Pikuleva

Alzheimers disease (AD) is the most common neurodegenerative disorder, yet it is poorly understood. Currently, there is no treatment to delay onset or slow...

Flexible metal-organic framework compounds: In situ studies for selective CO2 capture

June 19, 2015

Author(s)

Andrew J. Allen, Laura Espinal, Winnie K. Wong-Ng, Wendy Queen, Craig Brown, Steven R. Kline, Kristi L. Kauffman, Jeffrey T. Culp

Results from in situ experiments are presented to correlate carbon capture with dynamic structural changes in two flexible metal-organic framework (MOF)...

Single to Multiquasiparticle Excitations in the Itinerant Helical Magnet CeRhIn₅

June 19, 2015

Author(s)

C. Stock, Jose Rodriguez Rivera, Karin Schmalzl, E. E. Rodriguez, A. Stunault, C. Petrovic

CeRhIn 5 is an itinerant magnet where the Ce 3+ spins order in a simple spiral phase caused by competing exchange interactions. We investigate the spin...

Mesomorphic Pathway in Early Stage Crystallization of Polyethylene

June 18, 2015

Author(s)

Kalman D. Migler, Angela R. Hight Walker, Anthony P. Kotula

The kinetic pathway by which a molten polymer transforms into a multi-length scale semi-crystalline structure upon cooling is an unsolved problem in polymer...

Gauge matters: Observing the vortex-nucleation transition in a Bose condensate

June 18, 2015

Author(s)

Ian B. Spielman, LeBlanc Lindsey, Karina Jimenez-Garcia, Ross Williams, Matthew Beeler, William D. Phillips

The order parameter of a quantum-coherent many-body system includes one or more phase degrees of freedom, which, owing to the phase information's relationship...

Comment on 'Ramsey Spectroscopy, matter-wave interferometry, and the microwave-lensing frequency shift'

June 18, 2015

Author(s)

Steven R. Jefferts, Thomas P. Heavner, Stephan E. Barlow, Neil Ashby

The authors believe that the theory of the proposed frequency shift by Gibble [1] contains a number of errors that undermine the validity of the proposed effect...

Molecular dynamics investigation of the effects of tip-substrate interactions during nanoindentation

June 18, 2015

Author(s)

Francesca M. Tavazza, Thomas Senftle, Chenyu Zou, Chandler A. Becker, Adri van Duin

Nanoindentation in molecular dynamics simulations typically uses a much idealized indenter tip. This tip is often either a single sphere or collection of atoms...

Direct Measurement of Trace Polycyclic Aromatic Hydrocarbons in Diesel Fuel with 1H and 13C NMR Spectroscopy: Effect of PAH Content on Fuel Lubricity

June 17, 2015

Author(s)

Peter Y. Hsieh, Jason Widegren, Andrew Slifka, Andrew J. Hagen, Ronald A. Rorrer

Surface-active trace compounds present in diesel fuels protect pumps and injectors against premature wear through boundary lubrication. Due to the vast number...

Economic impact of applying high strength steels in hydrogen gas pipelines

June 17, 2015

Author(s)

Jeffrey W. Sowards, James R. Fekete, Robert L. Amaro

Pipeline steel will likely be employed extensively to transport gaseous hydrogen in support of a future clean energy economy. To date, a hydrogen-specific cost...

Real-Time Electrical Detection of the Formation and Destruction of Lipid Bilayers on Silicon Nanowire Devices

June 16, 2015

Author(s)

Elissa H. Williams, Albert Davydov, Melanie L. Juba, Barney M. Bishop, Sergiy Krylyuk, Abhishek Motayed, Mulpuri V. Rao, John A. Schreifels

Analytical Methods for Determination of Polycyclic Aromatic Hydrocarbons (PAHs) A Historical Perspective on the 16 US EPA Priority Pollutant PAHs

June 16, 2015

Author(s)

Stephen A. Wise, Lane C. Sander, Michele M. Schantz

Since identified as priority pollutants by the U.S. Environmental Protection Agency (EPA) in 1979, the 16 EPA polycyclic aromatic hydrocarbons (PAHs) have been...

Strong asymmetric charge carrier dependence in inelastic electron tunneling spectroscopy of graphene phonons

June 16, 2015

Author(s)

Donat F. Natterer, Yue Y. Zhao, Jonathan E. Wyrick, Yang-Hao Chan, Wen-Ying Ruan, Mei-Yin Chou, Kenji Watanabe, Takashi Taniguchi, Nikolai B. Zhitenev, Joseph A. Stroscio

The observation of phonons in graphene by inelastic electron tunneling spectroscopy has been met with limited success in previous measurements arising from weak...

Analysis of Several High-Resolution Bands of Spiropentane, C5H8

June 15, 2015

Author(s)

Alfons Weber, A. Maki, J. E. Price, Jared Harzan, J. W. Nibler, T. Masiello, T Blake

The high resolution absorption spectrum of spiropentane (C5H8) from 200 cm-1 to 4000 cm−1 has been measured and a detailed analysis is presented for eight bands...

Critical current and linewidth reduction in spin-torque nano-oscillators by delayed self-injection

June 15, 2015

Author(s)

Guru S. Khalsa, Mark D. Stiles, Julie Grollier

Based on theoretical models, the dynamics of spin torque nano-oscillators can be substantially modified by re-injecting the emitted signal to the input of the...

Resolving the vacuum fluctuations of an optomechanical system using an artificial atom

June 15, 2015

Author(s)

Florent Q. Lecocq, John D. Teufel, Jose A. Aumentado, Raymond W. Simmonds

Heisenberg's uncertainty principle results in one of the strangest quantum behaviours: a mechanical oscillator can never truly be at rest. Even at a temperature...

High accuracy CO2 line intensities determined from theory and experiment

June 15, 2015

Author(s)

Joseph T. Hodges, Oleg L. Polyansky, Katarzyna E. Bielska, Melanie C. Ghysels, Lorenzo Lodi, N Zobov, Jonathan Tennyson

The atmospheric concentration of carbon dioxide (CO2), with its consequences for the greenhouse effect and climate change, is being closely monitored by a...

Damage Development in Cementitious Materials Exposed to MgCl2 Deicing Salt

June 15, 2015

Author(s)

Yaghoob Farnam, Andrew Wiese, Dale P. Bentz, Jeffrey M. Davis, Jason Weiss

MgCl2 is used in deicing applications due to its capability to depress freezing temperatures to a lower point than other salts like NaCl. The constituents of...

Proposed Congruent Matching Cells (CMC) Method for Ballistic Identifications and Evidence Searches*

June 15, 2015

Author(s)

Jun-Feng Song

The "correlation cells" and three-dimensional (3D) topography measurements have been proposed for establishment of the "NIST Ballistics Identification System...

Spin-scattering rates in metallic thin films measured by ferromagnetic resonance damping enhanced by spin-pumping

June 12, 2015

Author(s)

Carl T. Boone, Justin M. Shaw, Hans T. Nembach, Thomas J. Silva

We determined the spin-transport properties of Pd and Pt thin films by measuring the increase in ferromagnetic resonance damping due to spin-pumping in...

Absolute Calibration of a Variable Attenuator Using Few-Photon Pulses

June 12, 2015

Author(s)

Zachary H. Levine, Boris L. Glebov, Adam L. Pintar, Alan L. Migdall

We demonstrate the ability to calibrate a variable optical attenuator directly at the few photon level using a Superconducting Transition Edge Sensor (TES)...

On the 209Po Half-Life Error and Its Confirmation: A Critique

June 11, 2015

Author(s)

Ronald Colle, Arthur M. Colle

Collé, et al [(2007) Appl. Radiat Isot. 65, 728; (2014) J. Phys. G: Nucl. Part. Phys. 41, 105103], over the course of nearly a decade and with decay data from a...

Recent measurements of the gravitational constant as a function of time

June 11, 2015

Author(s)

Stephan Schlamminger, Jens H. Gundlach, Riley D. Newman

A recent publication (J.D. Anderson et. Al., EPL 110, 1002) found a strong correlation between the measured values of the gravitational constant G and the 5.9...

IAQ and Energy Impacts of Ventilation and Source Control in a Big Box Retail Building

June 10, 2015

Author(s)

Lisa C. Ng, Andrew K. Persily, Steven J. Emmerich

Heating, ventilating, and air conditioning (HVAC) systems in buildings are designed to provide thermally comfortable conditions and to maintain acceptable...

Thermoresponsive PNIPAM Coatings on Nanostructured Gratings for Cell Alignment and Release

June 10, 2015

Author(s)

Mikhail Zhernenkov, Rana N. Ashkar, Hao Feng, Olukemi O. Akintewe, Nathan D. Gallant, Ryan Toomey, John F. Ankner, Roger Pynn

Thermoresponsive poly(N-isopropylacrylamide) (NIPAAm) has been widely used as a surface coating to thermally control the detachment of adsorbed cells without...

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