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Conferences

Using Cs and Rb Rydberg Atoms Simultaneously to Perform SI-Traceable RF Electric Field Measurements via Electromagnetically Induced Transparency

September 3, 2017

Author(s)

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

We discuss the use of cesium (Cs) and rubidium (Rb) Rydberg atoms to measure electric (E) field strengths. This work is leading to the development a...

Improvement Strategies for Manufacturers using the MESA MOM Capability Maturity Model

September 3, 2017

Author(s)

Quanri Li, Michael Brundage, Boonserm Kulvatunyou

Recently, the concept of smart manufacturing has emerged as a new paradigm, with which manufacturers can pursue their competitiveness in the market. Such a...

Application of desorption tube method to measure the gas-phase SVOC concentration adjacent to material surfaces

September 2, 2017

Author(s)

Mengyan Gong, Havishk Tripathi, Dustin Poppendieck

Semi-volatile organic compounds (SVOC) are ubiquitous indoors, commonly used in consumer products as additives to enhance product performance, and may be up to...

FATIGUE CRACK GROWTH RATES OF API X70 PIPELINE STEELS IN PRESSURIZED HYDROGEN GAS COMPARED WITH AN X52 PIPELINE IN HYDROGEN SERVICE

September 1, 2017

Author(s)

Elizabeth S. Drexler, Andrew J. Slifka, Robert L. Amaro, Damian S. Lauria, Jeffrey W. Sowards

At the present time, steel selection for hydrogen pipelines is limited to API X52 grade. However, the code is being modified to include higher strength steels...

2015 NIST Workshop on Analytical Transmission Scanning Electron Microscopy

September 1, 2017

Author(s)

Robert Keller

The Workshop on Analytical Transmission Scanning Electron Microscopy (t-SEM) was held at the NIST Boulder Laboratories of the U. S. Department of Commerce...

Small molecule inhibitors of DNA glycosylases as potential drugs in cancer therapy

August 31, 2017

Author(s)

M Miral Dizdar, Aaron C. Jacobs, Nathan Donley, Marcus J. Calkins, Ajit Jadhav, Dorjbal Dorjsuren, David Maloney, Anton Simeonov, Pawel Jaruga, Erdem Coskun, Amanda K. McCullough, R. S. Lloyd

Statement of the Problem: Most chemotherapeutic agents kill cancer cells by damaging DNA. Cancer cells overexpress DNA repair proteins and thus increase DNA...

A Thesaurus-guided Framework for Visualization of Unstructured Manufacturing Capability Data

August 31, 2017

Author(s)

Farhad Ameri, William Z. Bernstein

Manufacturing companies advertise their manufacturing capabilities and services on their company website using natural language text. The unstructured...

Metrology Outreach and Training: A Fulbright Experience in Mexico

August 30, 2017

Author(s)

Georgia L. Harris, Flora Mercader, Adriana Veraza, Salvador Echeverria Villagomez

2016 was an exciting year for international collaboration on metrology education and training. This paper provides a 3-part look at how a Fulbright Specialist...

Regret Minimization Based Adaptation of the Energy Detection Threshold in Body Area Networks

August 24, 2017

Author(s)

Vladimir V. Marbukh, Kamran Sayrafian

IEEE802.15.6 is a radio interface standard for wireless connectivity of wearable and implantable sensors and actuators located inside or in close proximity to...

Improving the Effectiveness of Speaker Verification Domain Adaptation With Inadequate In-Domain Data

August 24, 2017

Author(s)

Bengt Borgstrom, Elliot Singer, Douglas Reynolds, Omid Sadjadi, Gregory A. Sanders

This paper addresses speaker verification domain adaptation with inadequate in-domain data. Specifically, we explore he cases where in-domain data sets do not...

A Study on Performance Evaluation and Status-based Decision for Cyber-Physical Production Systems

August 23, 2017

Author(s)

Yan Lu, Feifan Wang, Feng Ju

In concert with the advances in information and communication technology and its applications to manufacturing environments, physical entities in factories are...

Predicting Face Recognition Performance in Unconstrained Environments

August 23, 2017

Author(s)

Amy Yates, P. Jonathon Phillips, J. R. Beveridge, Geof H. Givens

Developing an Assessment Methodology for Community Resilience

August 21, 2017

Author(s)

Maria Dillard

Communities can be characterized as complex systems, with resilience as an emergent property. Complex systems are systems composed of interconnected parts that...

The 2016 NIST Speaker Recognition Evaluation

August 20, 2017

Author(s)

Seyed Omid Sadjadi, Timothée N. Kheyrkhah, Audrey N. Tong, Craig S. Greenberg, Douglas A. Reynolds, Elliot Singer, Lisa Mason, Jaime Hernandez-Cordero

In 2016, NIST conducted the most recent in an ongoing series of speaker recognition evaluations (SRE) to foster research in robust text-independent speaker...

Should the repeatability of the instrument under test be included in test uncertainty?

August 18, 2017

Author(s)

Craig M. Shakarji, Steven D. Phillips

Should the repeatability of the instrument under test be included in test uncertainty? The answer which surprises manyis no, at least for the range of cases...

Combinatorial Testing of Full Text Search in Web Applications

August 18, 2017

Author(s)

M S Raunak, David R. Kuhn, Raghu N. Kacker

Database driven web applications are some of most widely developed systems today. Testing these applications effectively and discovering difficult-to-find bugs...

Combinatorial and MC/DC Coverage Levels of Random Testing

August 18, 2017

Author(s)

Sergiy Vilkomir, Aparna Alluri, D. Richard Kuhn, Raghu N. Kacker

Software testing criteria differ in effectiveness, numbers of required test cases, and processes of test generation. Specific criteria are often compared with...

Moisture Uptake Characterization in Nanocellulose Using Microwave Cavity

August 17, 2017

Author(s)

Caglar Emiroglu, Bharath N. Natarajan, Jeffrey W. Gilman, James Alexander Liddle, Jan Obrzut

Cellulose nanocrystal films with different helical modulation lengths are characterized. Films are obtained by tuning the rate of evaporation and surface...

In Situ Neutron Transmission Bragg Edge Measurements of Strain Fields Near Fatigue Cracks Grown in Air and in Hydrogen

August 14, 2017

Author(s)

Matthew Connolly, Peter Bradley, Andrew Slifka, Elizabeth S. Drexler

In situ transmission Bragg edge measurements of the strain field were performed near cracks grown in air and in hydrogen. Through the use of a novel test...

A Photonic MEMS Accelerometer with a Low-Finesse Hemispherical Microcavity Readout

August 13, 2017

Author(s)

Yiliang Bao, Feng Zhou, Thomas W. LeBrun, Jason J. Gorman

This paper describes the design, fabrication, and testing of a photonic MEMS accelerometer that uses a hemispherical microcavity to transduce the motion of the...

Characterization of the Dimensions of Internal Gap in a Glass Artifact Using a Laser Triangulation Probe

August 11, 2017

Author(s)

Wei Ren, Theodore D. Doiron, John R. Stoup, Eric S. Stanfield

High-accuracy Coordinate Measuring Machine (CMM) is always a good option to measure the dimensions on a variety of artifacts. However, due to the large length...

Towards a Semantically-Enabled Control Strategy for Building Simulations: Integration of Semantic Technologies and Model Predictive Control

August 9, 2017

Author(s)

Parastoo Delgoshaei, Mark Austin, Amanda Pertzborn, Mohammad Heidarinejad, Vikas Chandan

State-of-the-art building simulation control methods incorporate physical constraints into their mathematical models, but omit implicit constraints associated...

Scaling Methods for Dynamic Building System Simulation in an HVACSIM+ Environment

August 9, 2017

Author(s)

Zhelun Chen, Jin Wen, Anthony Kearsley, Amanda Pertzborn

A robust and efficient nonlinear algebraic and differential equations solver is increasingly essential as the scale of dynamic building system simulation grows...

A Collaborative Data Management System for Additive Manufacturing

August 9, 2017

Author(s)

Yan Lu, Paul W. Witherell, M A. Donmez

As additive manufacturing (AM) continues to mature as a production technology, the limiting factors that have hindered its adoption in the past still exist, for...

The Science Behind Community Resilience Assessment: An Overview of the Center for Risk-Based Community Resilience Planning

August 9, 2017

Author(s)

Bruce Ellingwood, John W. van de Lindt, Therese P. McAllister

Community resilience depends on the performance of the built environment and on supporting social, economic and public institutions which are essential for re...

In-situ Elastic Strain Mapping via EBSD of Micro-Sized Specimens

August 9, 2017

Author(s)

Mark McLean, William A. Osborn

The effect of powder on cooling rate and melt pool length measurements using in situ thermographic techniques

August 9, 2017

Author(s)

Jarred C. Heigel, Brandon M. Lane

High-speed thermal cameras enable in situ measurement of the temperatures in and around melt pools generated during powder bed fusion processes. These...

Continuous Laser Scan Strategy for Faster Build Speeds in Laser Powder Bed Fusion System

August 9, 2017

Author(s)

Ho Yeung, Brandon Lane, Jason Fox, Felix Kim, Jarred C. Heigel, Jorge Neira

Research has shown significant influence of laser scan strategy on various part qualities in the laser powder bed fusion additive manufacturing process. The...

Optimality Conditions for Constrained Least-Squares Fitting of Circles, Cylinders, and Spheres to Establish Datums

August 9, 2017

Author(s)

Craig M. Shakarji, Vijay Srinivasan

This paper addresses the combinatorial characterizations of the optimality conditions for constrained least-squares fitting of circles, cylinders, and spheres...

THERMAL PROPERTY MEASUREMENT METHODS AND ANALYSIS FOR AM SOLIDS AND POWDERS

August 9, 2017

Author(s)

Justin G. Whiting, Brandon M. Lane, Kevin Chou, Bo Cheng

Thermal properties of additive manufacturing (AM) solids and precursor materials are important factors for build process and part performance. However, measured...

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