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Search Publications

NIST Authors in Bold

Displaying 12801 - 12825 of 73697

NOVEL ZIRCONIA MATERIALS IN DENTISTRY

October 16, 2017
Author(s)
Yu Zhang, Brian R. Lawn
Zirconias, the most durable of the dental ceramics, are increasingly being fabricated in monolithic form for a range of clinical applications, circumventing issues associated with weak porcelain veneers. Yttria-based tetragonal zirconia polycrystal (Y-TZP)

Integrated Optical Waveguides for in situ Microflow Measurements

October 15, 2017
Author(s)
James R. Hands, Gregory A. Cooksey
The need for quantitative microscale chemical and biological experiments has resulted in the increasing utilization of microfluidics with integrated sensors, allowing such architectures to synergistically enhance function and performance [1]. This work

Serial Robotic Arm Joint Characterization Measurements for Antenna Metrology

October 15, 2017
Author(s)
Michael S. Allman, David R. Novotny, Joshua A. Gordon, Alexandra Curtin, Scott Sandwith
We developed an accurate kinematic model of our six-axis serial robotic arm used for antenna characterization measurements. The model was calibrated over a 0.4 m3 working cell. We validated the calibration using a 1 m2 plane embedded within the calibration

Channel De-embedding and Measurement System Characterization for MIMO at 75 GHz

October 14, 2017
Author(s)
Alexandra Curtin, David R. Novotny, Alex Yuffa
Abstract—We explore the development of a sparse set of measurements for array calibration, relying on coherent multi- channel data acquisition of wideband signals at 75 GHz, and the hardware characterization and post-processing necessary to perform channel

Observation of spin-orbit effects with spin rotation symmetry

October 13, 2017
Author(s)
Alisha Humphries, Tao Wang, Eric R. Edwards, Shane Allen, Justin Shaw, Hans Nembach, John Xiao, Thomas J. Silva
The spin-orbit interaction in a nonmagnetic/magnetic multilayer has been intensively studied due to its efficient conversion between a spin current and a charge current. In the spin Hall/Rashba-Edelstein effects (SHE/REE) and inverse spin Hall/Rashba

A Multistate Single-Connection Calibration for Microwave-Microfluidics

October 12, 2017
Author(s)
Xiao Ma, Charles A. Little, Chris Long, Jordi Mateu, James Booth, James Hwang, Nate Orloff
With emerging medical, chemical, and biological applications of microwave-microfluidic devices, many researchers desire a fast, accurate calibration that can be achieved in a single connection. However, traditional on-wafer or coaxial calibrations require

Applying Measurement Science to Evaluate Ground, Aerial, and Aquatic Robots

October 12, 2017
Author(s)
Adam S. Jacoff, Rick Candell, Anthony Downs, Hui-Min Huang, Kenneth Kimble, Kamel Saidi, Ann Virts
This paper reports on three measurement science field exercises for evaluating ground, aerial, and aquatic robots. These events, conducted from February to June 2017, were conducted in close co-ordination with the responder community, standards

Cloud Security Automation Framework

October 12, 2017
Author(s)
Cihan Tunc, Salim hariri, Mheni Merzouki, Charif Mahmoudi, Frederic J. de Vaulx, Jaafar Chbili, Robert B. Bohn, Abdella Battou
Cloud services have gained tremendous attention as a utility paradigm and have been deployed extensively across a wide range of fields. However, Cloud security is not catching up to the fast adoption of its services and remains one of the biggest

Heterogeneous integration for on-chip quantum photonic circuits with single quantum dot devices

October 12, 2017
Author(s)
Marcelo I. Davanco, Liu Jin, Luca Sapienza, Chen-Zhao Zhang, Jose Vinicius De Miranda Cardoso, Varun B. Verma, Richard P. Mirin, Sae Woo Nam, Liu Liu, Kartik A. Srinivasan
Photonic integration is establishing itself as an enabling technology for photonic quantum science, offering considerably greater scalability, stability, and functionality than traditional bulk optics. Here, we develop a scalable, heterogeneous III-V /

Likelihood Ratio as Weight of Forensic Evidence: A Closer Look

October 12, 2017
Author(s)
Hariharan K. Iyer, Steven P. Lund
The forensic science community has increasingly sought quantitative methods for conveying the weight of evidence. Experts from many forensic laboratories summarize their fndings in terms of a likelihood ratio. Several proponents of this approach have

Proceedings of the 2017 Model-Based Enterprise (MBE) Summit

October 12, 2017
Author(s)
Thomas D. Hedberg, Mark G. Carlisle
On April 3-6, 2017, the National Institute of Standards and Technology (NIST) hosted the Model- Based Enterprise (MBE) Summit to identify challenges, research, implementation issues, and les- sons learned in manufacturing and quality assurance where a

Local Breaking of Fourfold Rotational Symmetry by Short-Range Magnetic Order in Heavily Overdoped Ba(Fe 1-x Cu x ) 2 As 2

October 11, 2017
Author(s)
Weiyi Wang, Yu Song, Ding Hu, Yu Li, Rui Zhang, Leland Harriger, Wei Tian, Huibo Cao, Pengcheng Dai
We investigate Cu-doped Ba(Fe 1-xCu x) 2As 2 with transport, magnetic susceptibility, and elastic neutron scattering measurements. In the heavily Cu-doped regime where long-range stripe-type antiferromagnetic order in BaFe 2As 2 is suppressed, Ba(Fe 1-xCu

Microwave SQUID Multiplexer for Cosmic Microwave Background Imagers

October 11, 2017
Author(s)
Bradley J. Dober, Daniel T. Becker, Douglas A. Bennett, Sean A. Bryan, Shannon M. Duff, Johnathon D. Gard, James P. Hays-Wehle, Johannes Hubmayr, John A. Mates, Carl D. Reintsema, Leila R. Vale
Key performance characteristics are demonstrated for the microwave SQUID multiplexer (µmux) coupled to transition edge sensor (TES) bolometers that have been optimized for cosmic microwave background (CMB) observations. In a 64-channel demonstration, we

Structural, Chemical, and Dynamical Frustration: Origins of Superionic Conductivity in closo-Borate Solid Electrolytes

October 11, 2017
Author(s)
Kyoung E. Kweon, Joel B. Varley, Patrick Shea, Nicole Adelstein, Prateek Mehta, Tae Wook Heo, Terrence J. Udovic, Vitalie Stavila, Brandon C. Wood
Li 2B 12H 12 and Na 2B^12^H 12 closoboranes exhibit unusually high ionic conductivity, making them attractive as a new class of candidate electrolytes in solid-state Li- and Na-ion batteries. However, further optimization of these materials requires a

Sucrose density gradient centrifugation for efficient separation of engineered nanoparticles from a model organism, Caenorhabditis elegans

October 11, 2017
Author(s)
Monique E. Johnson, Antonio R. Montoro Bustos, Elijah J. Petersen, Shannon K. Hanna, Karen E. Murphy, Lee L. Yu, Bryant C. Nelson, Michael R. Winchester
This protocol describes a strategy for separating Caenorhabditis elegans (C. elegans) from engineered nanomaterials, a critical step for accurate quantification in uptake studies. Conventional rinsing procedures, typically comprised of water or buffer
Displaying 12801 - 12825 of 73697
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