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Conferences

The Role of Measurement Uncertainty in Achieving First-Pass Design Success

October 22, 2016

Author(s)

Dylan Williams, Richard Chamberlin, Wei Zhao, Jerome Cheron, Urteaga Miguel

We investigate the role of measurement uncertainty in achieving first-pass design success at microwave frequencies. We develop a model for state-of-the-art 250...

Implementation of the Dual Query Algorithm

October 21, 2016

Author(s)

Jason T. Suagee, Simson L. Garfinkel

Scattered Light Analysis of Birefringent Coatings for Distributed Polarization Rotators

October 20, 2016

Author(s)

Katelynn A. Sharma, Thomas Germer, Christopher Smith, Jonathan Zuegel, James B. Oliver, Thomas G. Brown

We characterize scattered light in polarization optics designed to maintain uniform illumination on target during spherical direct drive fusion experiments. An...

Refractive index measurements of Ge

October 20, 2016

Author(s)

John H. Burnett, Simon G. Kaplan

A program has been started at NIST to make high-accuracy measurements of the infrared (IR) index properties of technologically important IR materials, in order...

RF Characterization of Latex Coated Pyramidal Absorber

October 20, 2016

Author(s)

Jeffrey R. Guerrieri

We present a test procedure and results comparing RF performance of traditional pyramidal absorber to that with latex coating. Measurements are performed from 4...

An Investigation of the Temperature and Strain-Rate Effects on Strain-to-Failure of UHMWPE Fibers

October 18, 2016

Author(s)

Don Jenket II, Amanda L. Forster, Nicholas G. Paulter Jr., Tusit Weerasooriya, Carey A. Gunnarsson, Mohamad Al-Sheikhly

During a ballistic impact, Ultra High Molecular Weight Polyethylene (UHMWPE) fibers are subjected to high temperatures and high strain-rates. Their tensile...

NIST Mini-Kolsky Bar: Historical Review

October 16, 2016

Author(s)

Dick Rhorer, Steven P. Mates, Jae Hyun Kim

The Society for Experimental Mechanics (SEM) has sponsored a series of technical paper sessions titled "Novel Testing Techniques" at their annual meetings...

The Influence of Chamber Size on Chemical Emissions from Closed Cell Spray Polyurethane Foam

October 16, 2016

Author(s)

Dustin Poppendieck, Mengyan Gong

Spray polyurethane foam (SPF) insulation is widely used to improve building energy efficiency. Recent efforts have been made within the ASTM D22.05 subcommittee...

Lessons Learned from Spray Polyurethane Foam Emission Testing using Micro-chambers

October 16, 2016

Author(s)

Dustin Poppendieck, Mengyan Gong, Lauren E. Lawson

Both governmental agencies and the SPF industry consortium have sought more information on potential chemical emissions from SPF to better understand any...

Subdiffraction optical motion transduction using a scalable plasmomechanical platform

October 16, 2016

Author(s)

Brian J. Roxworthy, Vladimir Aksyuk

We present a scalable platform for producing a new class of reconfigurable plasmonic devices. Using localized-gap plasmon resonators exhibiting large quality...

Stochastic Single Flux Quantum Neuromorphic Computing using Magnetically Tunable Josephson Junctions

October 16, 2016

Author(s)

Stephen E. Russek, Christine A. Donnelly, Michael Schneider, Burm Baek, Matthew Pufall, William Rippard, Pete Hopkins, Paul Dresselhaus, Samuel P. Benz

Abstract— Single flux quantum (SFQ) circuits form a natural neuromorphic technology with SFQ pulses and superconducting transmission lines simulating action...

A Clustering-Based Device-to-Device Communication to Support Diverse Applications

October 13, 2016

Author(s)

Amirshahram Hematian, Wei Yu, Chao Lu, David W. Griffith, Nada T. Golmie

The expanding coverage and capacity of cellular networks through broadband wireless infrastructure has limitations in accommodating the expanding strain and...

The Bugs Framework (BF): A Structured Approach to Express Bugs

October 13, 2016

Author(s)

Irena Bojanova, Paul E. Black, Yaacov Yesha, Yan Wu

To achieve higher levels of assurance for digital systems, we need to answer questions such as, does this software have bugs of these critical classes? Do these...

STEEL GRAVITY CONNECTIONS SUBJECTED TO LARGE ROTATIONS AND AXIAL LOADS

October 13, 2016

Author(s)

Jonathan M. Weigand, Jeffrey W. Berman

Steel gravity framing systems (SGFSs) rely on connections for system robustness when a column suffers damage that compromises its ability to carry gravity loads...

Modeling of double-angle connections for robustness evaluation of steel gravity frames

October 13, 2016

Author(s)

Jonathan Weigand, Judy Liu, Joseph Main

Component-based models of bolted double-angle beam-to-column connections have been developed for evaluating the structural robustness of steel gravity frames...

Enhanced connections for improved robustness of steel gravity frames

October 12, 2016

Author(s)

Jonathan Weigand, Joseph Main

Potential vulnerabilities to collapse have been identified for steel gravity framing systems with conventional gravity connections subjected to column loss. To...

DEFORMATION LIMITS AND ROTATIONAL CAPACITIES FOR CONNECTIONS UNDER COLUMN LOSS

October 12, 2016

Author(s)

Jonathan Weigand, Joseph Main

For structural steel framing systems subjected to column loss, the ultimate gravity load carrying capacity of the system is often controlled by the rotation and...

Recent Advancements of Wide-Angle Polarization Analysis with ³He neutron Spin Filters

October 10, 2016

Author(s)

WangChun Chen, Thomas R. Gentile, Qiang NMN Ye, A. Kirchhoff, Shannon Watson, Jose A. Rodriguez, Yiming Qiu, Collin L. Broholm

Wide-angle polarization analysis with polarized 3He based neutron spin filters (NSFs) has recently been employed on the Multi-Axis Crystal Spectrometer (MACS)...

FINE-TUNING ELECTRICAL FLOW RATE SENSING IN DEFORMABLE CHANNELS

October 9, 2016

Author(s)

Pengfei Niu, Brian J. Nablo, Kiran Bhadriraju, Darwin Reyes-Hernandez

Here we present conclusive proof that when using electrical impedance to measure volumetric flow rate in polydimethylsiloxane (PDMS) microchannels a...

Measuring Latency in Location Based ServicesA Public Safety Perspective

October 7, 2016

Author(s)

Casey R. Baer, Vihang S. Jani

Location-based services (LBS) that are able to determine accurately and precisely the location of a first responder are of great interest to public safety...

Inertial Measurement Unit for On-Machine Diagnostics of Machine Tool Linear Axes

October 7, 2016

Author(s)

Gregory W. Vogl, Alkan Donmez, Andreas Archenti, Brian A. Weiss

Machine tools degrade during operations, yet knowledge of degradation is elusive; accurately detecting degradation of machines' components such as linear axes...

Time in Cyber-Physical Systems

October 2, 2016

Author(s)

Marc A. Weiss, YaShian Li-Baboud, Aviral Shrivastava, Mohammad Khayatian, Patricia Derlery, Hugo A. Andrade, Sundeep Chandhoke, Kevin Stanton, John Eidson

Many modern CPS, especially industrial automation systems, require the actions of multiple computational systems to be synchronized at much higher rates than is...

NIST MISE EN PRATIQUE FOR THE REALIZATION AND DISSEMINATION OF THE REDEFINED KILOGRAM

October 1, 2016

Author(s)

Patrick J. Abbott, Eric Benck, Corey A. Stambaugh, Edward C. Mulhern, Zeina J. Kubarych

The SI unit of mass, the kilogram, is scheduled to be redefined in 2018 as part of a broader redefinition of the SI in terms of fundamental constants. The...

Compliance-Free Pulse Forming of Filamentary RRAM

September 30, 2016

Author(s)

Pragya Shrestha, David M. Nminibapiel, Jihong Kim, Helmut Baumgart, Kin (Charles) Cheung, Jason Campbell

Despite the overwhelming effort to improve the efficacy of resistive random access memory (RRAM), the underlying physics governing RRAM operation have proven...

THE NIST MAGNETIC SUSPENSION MASS COMPARATOR: A LOOK AT AUTOMATION

September 29, 2016

Author(s)

Corey A. Stambaugh, Edward C. Mulhern

The magnetic suspension mass comparator at NIST is a fully automated mass comparator with the unique feature that it is able to directly compare a mass in...

Back Pressure Ratio and the Transonic Resonance Mechanism of Low Unchoking in Critical Flow Venturis

September 28, 2016

Author(s)

John D. Wright, Keith A. Gillis, Aaron Johnson, Ida I. Shinder

Reliable Critical Flow Venturi (CFV) operation requires sonic velocity at the throat of the device. The maximum ratio of exit pressure to inlet pressure that...

Extended Data Analysis of Bilateral Comparisons with Air and Natural Gas up to 5 MPa

September 28, 2016

Author(s)

John D. Wright, Bodo Mickan, J-P Vallet, CHUNHUI LI

In 2015, the PTB, LNE-LADG, NIM and NIST performed informal bilateral comparisons using six critical venturi nozzles. The goal of the comparisons was to prove...

Exploring frustrated magnetism with artificial spin ice

September 26, 2016

Author(s)

Ian J. Gilbert, Bojan R. Ilic

Nanomagnet arrays known as artificial spin ice provide insight into the microscopic details of frustrated magnetism because, unlike natural frustrated magnets...

Low noise thermistor read out for wideband room temperature infrared detectors

September 25, 2016

Author(s)

Ivan Ryger, Michelle S. Stephens, John H. Lehman, Matthew T. Spidell, Malcolm G. White, Nathan A. Tomlin, Dave Harber, Peter Lobotka

An absolute electrical substitution radiometer is a way to ensure highly accurate and stable measurement of optical power in a wide range of optical wavelengths...

Estimation and uncertainty quantification of yield via strain recovery simulations

September 25, 2016

Author(s)

Paul Patrone

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