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Search Publications

NIST Authors in Bold

Displaying 17701 - 17725 of 73697

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 improved accuracy and reliability in predicting resource needs and allocation, maintenance

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 have studied the structure, magnetic, and transport properties of copper substituted iron telluride

Metrology Needs for Predicting Concrete Pumpability

June 22, 2015
Author(s)
Myoungsung Choi, Chiara C. Ferraris, Nicos Martys, Didier Lootens, Van Bui, Trey Hamilton
With the increasing use of pumping to place concrete, the development and refinement of the industry practice to ensure successful concrete pumping is becoming an important need for the concrete construction industry. To date, research on concrete pumping

Quantifying Uncertainty in Accelerometer Sensitivity Studies

June 22, 2015
Author(s)
Andrew L. Rukhin, David J. Evans
Key Comparisons of accelerometers sensitivity measurement are performed to compare the sensitivity of linear accelerometers. The key comparison reference value (KCRV) for charge sensitivity as a function of frequency and the accompanying uncertainty are

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 come over the past 30 years. Like the Olympic motto of "faster, higher, stronger", forensic DNA

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 interactions, boundary roughness and compliance, in addition to finite film thickness. We consider

Characterization of Electrothermal Actuation with Nanometer and Microradian Precision

June 21, 2015
Author(s)
Craig R. Copeland, Craig D. McGray, Jon C. Geist, Vladimir A. Aksyuk, Samuel M. Stavis
A recently introduced particle-tracking method was used to measure the single motion cycles of an electrothermal actuator with nanometer and microradian precision. Driving the actuator with a low-noise input induced deterministic motion that was perfectly

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, static, under shear and with a magnetic field, the depth profile is extracted. The particles

Small footprint nano-mechanical plasmonic phase modulators

June 21, 2015
Author(s)
Vladimir A. Aksyuk, Brian S. Dennis, Michael Haftel, David Czaplewski, Daniel Lopez, Girsh Blumberg
The authors’ recent Nature Photonics article titled “Compact Nano-Mechanical Plasmonic Phase Modulators” [1] is reviewed which reports a new phase modulation principle with experimental demonstration of a 23 μm long non-resonant modulator having 1.5 π rad

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
Alzheimer’s disease (AD) is the most common neurodegenerative disorder, yet it is poorly understood. Currently, there is no treatment to delay onset or slow progression of AD. Epigenetics of AD is a growing field that has gained interest due to the

CALIBRATION AND CHARACTERIZATION OF A SEAPRISM RADIOMETER FOR AERONET-OC

June 19, 2015
Author(s)
Bettye C. Johnson, Steven W. Brown, John T. Woodward IV, Keith R. Lykke, Giuseppe Zibordi
The global Aerosol Robotic Network for Ocean Color (AERONET-OC) program utilizes AERONET CE-318 sun photometers (termed “SeaPRISMs”) modified for in-air observations of ocean waters situated on oil drilling rigs, off-shore lighthouses, or other platforms

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) materials: porous coordination polymers (PCPs) exhibiting promising carbon dioxide adsorption

Single to Multiquasiparticle Excitations in the Itinerant Helical Magnet CeRhIn 5

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 excitations and observe sharp spin- waves parameterized by a nearest neighbor exchange J RKKY =0.88 ±0

Towards a Periodic Table of Bugs

June 19, 2015
Author(s)
Paul E. Black, Irena V. Bojanova, Yaacov Yesha, Yan Wu
High-confidence systems must not be vulnerable to attacks that reduce the security, reliability, or availability of the system as a whole. One collection of vulnerabilities is the Common Weakness Enumeration (CWE). It represents a considerable community

Cardholder Authentication for the PIV Digital Signature Key

June 18, 2015
Author(s)
William Polk, Hildegard Ferraiolo, David Cooper
FIPS 201-2 requires explicit user action by the Personal Identity Verification (PIV) cardholder as a condition for use of the digital signature key stored on the card. This document clarifies the requirement for explicit user action to encourage the

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 to velocity, can be accessed using time-of-flight (TOF) imaging. Here, trapped Bose-Einstein
Displaying 17701 - 17725 of 73697
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