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NIST Authors in Bold

Displaying 10076 - 10100 of 73751

Protocols for tensile testing flexible unidirectional composite laminates

April 27, 2019
Author(s)
Amy E. Engelbrecht-Wiggans, Ajay Krishnamurthy, Faraz A. Burni, William A. Osborn, Amanda L. Forster
Many body armor designs incorporate unidirectional (UD) laminates. UD laminates are constructed of thin layers of high performance yarns where the yarns in each layer are oriented parallel to each other and held in place using binder resins and thin

Chemistry from 3D-printed objects

April 26, 2019
Author(s)
Matthew R. Hartings, Zeeshan Ahmed
3D printing technology has started to take hold as an enabling tool for scientific advancement. Born from the marriage of computer-aided design and additive manufacturing, 3D printing was originally intended to generate prototypes for inspection before

Evaluation of a lateral flow immunoassay for the detection of the synthetic opioid fentanyl

April 26, 2019
Author(s)
Edward Sisco, Daniel J. Angelini, Tracey D. Briggs, Michele N. Maughan, Michael G. Feasel, Jennifer W. Sekowski
In the United States in 2016, 64,000 overdose deaths were reported to be associated with the abuse of opioids, including prescription painkillers (e.g. oxycodone), opiates (e.g. heroin), or synthetic opioids (e.g. fentanyl). The recent spike in the

Fatigue Testing of Pipeline Welds and Heat-Affected Zones in Pressurized Hydrogen Gas

April 26, 2019
Author(s)
Elizabeth S. Drexler, Andrew J. Slifka, Robert L. Amaro, Jeffrey W. Sowards, Matthew J. Connolly, May L. Martin, Damian S. Lauria
Several welds and associated heat-affected zones (HAZs) on two API X70 and two API X52 pipes were tested to determine the fatigue crack growth rate (FCGR) in pressurized hydrogen gas and assess the area of the pipe that was most susceptible to fatigue when

Trapped-ion spin-motion coupling with microwaves and a near-motional oscillating magnetic field gradient

April 26, 2019
Author(s)
Raghavendra Srinivas, Shaun C. Burd, R. T. Sutherland, Andrew C. Wilson, David J. Wineland, Dietrich G. Leibfried, David T. Allcock, Daniel H. Slichter
We present a new method of spin-motion coupling for trapped ions using microwaves and a magnetic field gradient oscillating close to the ions' motional frequency. We demonstrate and characterize this coupling experimentally using a single ion in a surface

Analysis of the systematic force-transmission error of the magnetic-suspension coupling in single-sinker densimeters and commercial gravimetric sorption analyzers

April 23, 2019
Author(s)
Reiner Kleinrahm, Xiaoxian Yang, Mark McLinden, Markus Richter
Here we present an analysis of the force-transmission error for a commercial gravimetric sorption analyzer that applies equally to single-sinker densimeters. Gravimetric sorption analyzers are commonly used for the investigation of gas adsorption on porous

CEGO: C++11 Evolutionary Global Optimization

April 23, 2019
Author(s)
Ian H. Bell
Global optimization is an algorithmic need that is ubiquitous throughout the natural sciences, engineering, and other technical spheres. It is a non-trivial task, particularly when the function to be optimized has many local minima and the optimization

2018 NIST/OAGi Workshop: Enabling Composable Service-Oriented Manufacturing Systems

April 22, 2019
Author(s)
Nenad Ivezic, Boonserm Kulvatunyou, Michael P. Brundage, Yan Lu, Evan K. Wallace, Albert W. Jones
This report summarizes the results from the 2018 NIST/OAGi Workshop: Enabling Composable Service-Oriented Manufacturing Systems, which was held at the National Institute of Standards and Technology campus in Gaithersburg, MD, on April 23-24, 2018. This was

A solid-state source of strongly entangled photon pairs with high brightness and indistinguishability

April 22, 2019
Author(s)
Jin Liu, Rongbin Su, Yuming Wei, Beimeng Yao, Saimon Filipe Covre da Silva, Ying Yu, Jake Iles-Smith, Kartik Srinivasan, Armando Rastelli, Juntao Li, Xuehua Wang
The generation of high-quality entangled photon pairs has been being a long-sought goal in modern quan-tum communication and computation. To date, the most widely-used entangled photon pairs are gener-ated from spontaneous parametric downconversion, a

An Approach to T-way Test Sequence Generation With Constraints

April 22, 2019
Author(s)
Raghu N. Kacker, David R. Kuhn
In this paper we address the problem of constraint handling in t-way test sequence generation. We develop a notation for specifying sequencing constraints and present a t-way test sequence generation that handles the constraints specified in this notation

Applying Combinatorial Testing to Large-scale Data Processing at Adobe

April 22, 2019
Author(s)
Raghu N. Kacker, David R. Kuhn, Riley Smith
Adobe offers an analytics product as part of the Marketing Cloud software with which customers can track many details about users across various digital platforms. For the most part, customers define the amount and type of data to track. This high

BowTie - A deep learning feedforward neural network for sentiment analysis

April 22, 2019
Author(s)
Apostol T. Vassilev
How to model and encode the semantics of human-written text and select the type of neural network to process it with are not settled issues in sentiment analysis. Accuracy and transferability are critical issues in machine learning in general. These

Certification of SRM 2497: Standard Reference Concrete for Rheological Measurements

April 22, 2019
Author(s)
Nicos Martys, Max A. Peltz, William L. George, Blaza Toman, Edward J. Garboczi, Chiara Ferraris
Rotational rheometers are commonly used to determine the rheological properties of fluids such as viscosity and yield stress [Fer12]. Manufacturers generally recommend the use of a standard oil of known viscosity to verify that the instrument is operating

Measuring Combinatorial Coverage at Adobe

April 22, 2019
Author(s)
Raghu N. Kacker, David R. Kuhn, Riley Smith
Adobe offers an analytics product as part of the Marketing Cloud software with which customers can track many details about users across various digital platforms. For the most part, customers define the amount and type of data to track. In addition

Microcontroller based scanning transfer cavity lock with environmental compensation

April 22, 2019
Author(s)
Sarthak Subhankar, Alessandro Restelli, Yang Wang, Steve Rolston, James V. Porto
We present a compact, cost-effective, and all-digital implementation of a scanning transfer cavity lock (STCL) for long term laser frequency stabilization. An interrupt-based, event-centric state machine is employed to realize the STCL, with the capability
Displaying 10076 - 10100 of 73751
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